1 /****************************************************************************
3 * Copyright (C) 2005 - 2013 by Vivante Corp.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the license, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 *****************************************************************************/
22 #include "gc_hal_kernel_linux.h"
24 #include <linux/pagemap.h>
25 #include <linux/seq_file.h>
27 #include <linux/mman.h>
28 #include <linux/sched.h>
29 #include <asm/atomic.h>
30 #include <linux/dma-mapping.h>
31 #include <linux/slab.h>
32 #include <linux/idr.h>
33 #if LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0)
34 #include <mach/hardware.h>
36 #include <linux/workqueue.h>
37 #include <linux/idr.h>
38 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23)
39 #include <linux/math64.h>
41 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
42 #include <linux/reset.h>
43 static inline void imx_gpc_power_up_pu(bool flag) {}
44 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0)
45 #include <mach/common.h>
47 #include <linux/delay.h>
48 #include <linux/pm_runtime.h>
51 #if gcdANDROID_NATIVE_FENCE_SYNC
52 #include <linux/file.h>
53 #include "gc_hal_kernel_sync.h"
57 #define _GC_OBJ_ZONE gcvZONE_OS
59 /*******************************************************************************
60 ***** Version Signature *******************************************************/
63 const char * _PLATFORM = "\n\0$PLATFORM$Android$\n";
65 const char * _PLATFORM = "\n\0$PLATFORM$Linux$\n";
68 #define USER_SIGNAL_TABLE_LEN_INIT 64
69 #define gcdSUPPRESS_OOM_MESSAGE 1
71 #define MEMORY_LOCK(os) \
72 gcmkVERIFY_OK(gckOS_AcquireMutex( \
77 #define MEMORY_UNLOCK(os) \
78 gcmkVERIFY_OK(gckOS_ReleaseMutex((os), (os)->memoryLock))
80 #define MEMORY_MAP_LOCK(os) \
81 gcmkVERIFY_OK(gckOS_AcquireMutex( \
83 (os)->memoryMapLock, \
86 #define MEMORY_MAP_UNLOCK(os) \
87 gcmkVERIFY_OK(gckOS_ReleaseMutex((os), (os)->memoryMapLock))
89 /* Protection bit when mapping memroy to user sapce */
90 #define gcmkPAGED_MEMROY_PROT(x) pgprot_writecombine(x)
92 #if gcdNONPAGED_MEMORY_BUFFERABLE
93 #define gcmkIOREMAP ioremap_wc
94 #define gcmkNONPAGED_MEMROY_PROT(x) pgprot_writecombine(x)
95 #elif !gcdNONPAGED_MEMORY_CACHEABLE
96 #define gcmkIOREMAP ioremap_nocache
97 #define gcmkNONPAGED_MEMROY_PROT(x) pgprot_noncached(x)
100 #if gcdSUPPRESS_OOM_MESSAGE
101 #define gcdNOWARN __GFP_NOWARN
106 #define gcdINFINITE_TIMEOUT (60 * 1000)
107 #define gcdDETECT_TIMEOUT 0
108 #define gcdDETECT_DMA_ADDRESS 1
109 #define gcdDETECT_DMA_STATE 1
111 #define gcdUSE_NON_PAGED_MEMORY_CACHE 10
113 /******************************************************************************\
114 ********************************** Structures **********************************
115 \******************************************************************************/
116 #if gcdUSE_NON_PAGED_MEMORY_CACHE
117 typedef struct _gcsNonPagedMemoryCache
119 #ifndef NO_DMA_COHERENT
122 dma_addr_t dmaHandle;
128 struct _gcsNonPagedMemoryCache * prev;
129 struct _gcsNonPagedMemoryCache * next;
131 gcsNonPagedMemoryCache;
132 #endif /* gcdUSE_NON_PAGED_MEMORY_CACHE */
134 typedef struct _gcsUSER_MAPPING * gcsUSER_MAPPING_PTR;
135 typedef struct _gcsUSER_MAPPING
137 /* Pointer to next mapping structure. */
138 gcsUSER_MAPPING_PTR next;
140 /* Physical address of this mapping. */
143 /* Logical address of this mapping. */
146 /* Number of bytes of this mapping. */
149 /* Starting address of this mapping. */
152 /* Ending address of this mapping. */
157 typedef struct _gcsINTEGER_DB * gcsINTEGER_DB_PTR;
158 typedef struct _gcsINTEGER_DB
174 /* Pointer to device */
177 /* Memory management */
178 gctPOINTER memoryLock;
179 gctPOINTER memoryMapLock;
181 struct _LINUX_MDL *mdlHead;
182 struct _LINUX_MDL *mdlTail;
184 /* Kernel process ID. */
185 gctUINT32 kernelProcessID;
187 /* Signal management. */
190 gctPOINTER signalMutex;
192 /* signal id database. */
193 gcsINTEGER_DB signalDB;
195 #if gcdANDROID_NATIVE_FENCE_SYNC
197 gctPOINTER syncPointMutex;
199 /* sync point id database. */
200 gcsINTEGER_DB syncPointDB;
203 gcsUSER_MAPPING_PTR userMap;
204 gctPOINTER debugLock;
206 #if gcdUSE_NON_PAGED_MEMORY_CACHE
208 gcsNonPagedMemoryCache * cacheHead;
209 gcsNonPagedMemoryCache * cacheTail;
212 /* workqueue for os timer. */
213 struct workqueue_struct * workqueue;
216 typedef struct _gcsSIGNAL * gcsSIGNAL_PTR;
217 typedef struct _gcsSIGNAL
219 /* Kernel sync primitive. */
220 struct completion obj;
222 /* Manual reset flag. */
225 /* The reference counter. */
228 /* The owner of the signal. */
231 gckHARDWARE hardware;
238 #if gcdANDROID_NATIVE_FENCE_SYNC
239 typedef struct _gcsSYNC_POINT * gcsSYNC_POINT_PTR;
240 typedef struct _gcsSYNC_POINT
242 /* The reference counter. */
249 struct sync_timeline * timeline;
257 typedef struct _gcsPageInfo * gcsPageInfo_PTR;
258 typedef struct _gcsPageInfo
261 gctUINT32_PTR pageTable;
265 typedef struct _gcsOSTIMER * gcsOSTIMER_PTR;
266 typedef struct _gcsOSTIMER
268 struct delayed_work work;
269 gctTIMERFUNCTION function;
273 /******************************************************************************\
274 ******************************* Private Functions ******************************
275 \******************************************************************************/
282 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
283 return task_tgid_vnr(current);
285 return current->tgid;
294 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
295 return task_pid_vnr(current);
308 gcmkHEADER_ARG("ProcessID=%d", ProcessID);
310 mdl = (PLINUX_MDL)kzalloc(sizeof(struct _LINUX_MDL), GFP_KERNEL | gcdNOWARN);
317 mdl->pid = ProcessID;
322 gcmkFOOTER_ARG("0x%X", mdl);
329 IN PLINUX_MDL_MAP MdlMap
337 PLINUX_MDL_MAP mdlMap, next;
339 gcmkHEADER_ARG("Mdl=0x%X", Mdl);
341 /* Verify the arguments. */
342 gcmkVERIFY_ARGUMENT(Mdl != gcvNULL);
346 while (mdlMap != gcvNULL)
350 gcmkVERIFY_OK(_DestroyMdlMap(Mdl, mdlMap));
361 static PLINUX_MDL_MAP
367 PLINUX_MDL_MAP mdlMap;
369 gcmkHEADER_ARG("Mdl=0x%X ProcessID=%d", Mdl, ProcessID);
371 mdlMap = (PLINUX_MDL_MAP)kmalloc(sizeof(struct _LINUX_MDL_MAP), GFP_KERNEL | gcdNOWARN);
372 if (mdlMap == gcvNULL)
378 mdlMap->pid = ProcessID;
379 mdlMap->vmaAddr = gcvNULL;
380 mdlMap->vma = gcvNULL;
383 mdlMap->next = Mdl->maps;
386 gcmkFOOTER_ARG("0x%X", mdlMap);
393 IN PLINUX_MDL_MAP MdlMap
396 PLINUX_MDL_MAP prevMdlMap;
398 gcmkHEADER_ARG("Mdl=0x%X MdlMap=0x%X", Mdl, MdlMap);
400 /* Verify the arguments. */
401 gcmkVERIFY_ARGUMENT(MdlMap != gcvNULL);
402 gcmkASSERT(Mdl->maps != gcvNULL);
404 if (Mdl->maps == MdlMap)
406 Mdl->maps = MdlMap->next;
410 prevMdlMap = Mdl->maps;
412 while (prevMdlMap->next != MdlMap)
414 prevMdlMap = prevMdlMap->next;
416 gcmkASSERT(prevMdlMap != gcvNULL);
419 prevMdlMap->next = MdlMap->next;
428 extern PLINUX_MDL_MAP
434 PLINUX_MDL_MAP mdlMap;
436 gcmkHEADER_ARG("Mdl=0x%X ProcessID=%d", Mdl, ProcessID);
444 while (mdlMap != gcvNULL)
446 if (mdlMap->pid == ProcessID)
448 gcmkFOOTER_ARG("0x%X", mdlMap);
452 mdlMap = mdlMap->next;
467 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25)
473 unsigned long addr = (unsigned long)Addr;
475 return addr >= VMALLOC_START && addr < VMALLOC_END;
481 IN struct page ** Pages,
482 IN gctUINT32 NumPages
487 gcmkHEADER_ARG("Pages=0x%X, NumPages=%d", Pages, NumPages);
489 gcmkASSERT(Pages != gcvNULL);
491 for (i = 0; i < NumPages; i++)
493 __free_page(Pages[i]);
496 if (is_vmalloc_addr(Pages))
508 static struct page **
510 IN gctUINT32 NumPages
513 struct page ** pages;
517 gcmkHEADER_ARG("NumPages=%lu", NumPages);
519 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 32)
520 if (NumPages > totalram_pages)
522 if (NumPages > num_physpages)
529 size = NumPages * sizeof(struct page *);
531 pages = kmalloc(size, GFP_KERNEL | gcdNOWARN);
535 pages = vmalloc(size);
544 for (i = 0; i < NumPages; i++)
546 p = alloc_page(GFP_KERNEL | __GFP_HIGHMEM | gcdNOWARN);
550 _NonContiguousFree(pages, i);
558 gcmkFOOTER_ARG("pages=0x%X", pages);
562 static inline struct page *
563 _NonContiguousToPage(
564 IN struct page ** Pages,
568 gcmkASSERT(Pages != gcvNULL);
572 static inline unsigned long
574 IN struct page ** Pages,
578 gcmkASSERT(Pages != gcvNULL);
579 return page_to_pfn(_NonContiguousToPage(Pages, Index));
582 static inline unsigned long
583 _NonContiguousToPhys(
584 IN struct page ** Pages,
588 gcmkASSERT(Pages != gcvNULL);
589 return page_to_phys(_NonContiguousToPage(Pages, Index));
593 #if gcdUSE_NON_PAGED_MEMORY_CACHE
596 _AddNonPagedMemoryCache(
598 #ifndef NO_DMA_COHERENT
608 gcsNonPagedMemoryCache *cache;
610 if (Os->cacheSize >= gcdUSE_NON_PAGED_MEMORY_CACHE)
615 /* Allocate the cache record */
616 cache = (gcsNonPagedMemoryCache *)kmalloc(sizeof(gcsNonPagedMemoryCache), GFP_ATOMIC);
618 if (cache == gcvNULL) return gcvFALSE;
620 #ifndef NO_DMA_COHERENT
623 cache->dmaHandle = DmaHandle;
625 cache->order = Order;
630 if (Os->cacheHead == gcvNULL)
632 cache->prev = gcvNULL;
633 cache->next = gcvNULL;
635 Os->cacheTail = cache;
639 /* Add to the tail. */
640 cache->prev = Os->cacheTail;
641 cache->next = gcvNULL;
642 Os->cacheTail->next = cache;
643 Os->cacheTail = cache;
651 #ifndef NO_DMA_COHERENT
653 _GetNonPagedMemoryCache(
656 dma_addr_t * DmaHandle
660 _GetNonPagedMemoryCache(
666 gcsNonPagedMemoryCache *cache;
667 #ifndef NO_DMA_COHERENT
673 if (Os->cacheHead == gcvNULL) return gcvNULL;
675 /* Find the right cache */
676 cache = Os->cacheHead;
678 while (cache != gcvNULL)
680 #ifndef NO_DMA_COHERENT
681 if (cache->size == Size) break;
683 if (cache->order == Order) break;
689 if (cache == gcvNULL) return gcvNULL;
691 /* Remove the cache from list */
692 if (cache == Os->cacheHead)
694 Os->cacheHead = cache->next;
696 if (Os->cacheHead == gcvNULL)
698 Os->cacheTail = gcvNULL;
703 cache->prev->next = cache->next;
705 if (cache == Os->cacheTail)
707 Os->cacheTail = cache->prev;
711 cache->next->prev = cache->prev;
716 #ifndef NO_DMA_COHERENT
718 *DmaHandle = cache->dmaHandle;
727 #ifndef NO_DMA_COHERENT
735 _FreeAllNonPagedMemoryCache(
739 gcsNonPagedMemoryCache *cache, *nextCache;
743 cache = Os->cacheHead;
745 while (cache != gcvNULL)
747 if (cache != Os->cacheTail)
749 nextCache = cache->next;
756 /* Remove the cache from list */
757 if (cache == Os->cacheHead)
759 Os->cacheHead = cache->next;
761 if (Os->cacheHead == gcvNULL)
763 Os->cacheTail = gcvNULL;
768 cache->prev->next = cache->next;
770 if (cache == Os->cacheTail)
772 Os->cacheTail = cache->prev;
776 cache->next->prev = cache->prev;
780 #ifndef NO_DMA_COHERENT
781 dma_free_coherent(gcvNULL,
786 free_pages((unsigned long)page_address(cache->page), cache->order);
797 #endif /* gcdUSE_NON_PAGED_MEMORY_CACHE */
799 /*******************************************************************************
800 ** Integer Id Management.
804 IN gcsINTEGER_DB_PTR Database,
805 IN gctPOINTER KernelPointer,
812 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 9, 0)
813 idr_preload(GFP_KERNEL | gcdNOWARN);
815 spin_lock(&Database->lock);
817 next = (Database->curr + 1 <= 0) ? 1 : Database->curr + 1;
818 result = idr_alloc(&Database->idr, KernelPointer, next, 0, GFP_ATOMIC);
822 Database->curr = *Id;
825 spin_unlock(&Database->lock);
831 return gcvSTATUS_OUT_OF_RESOURCES;
837 if (idr_pre_get(&Database->idr, GFP_KERNEL | gcdNOWARN) == 0)
839 return gcvSTATUS_OUT_OF_MEMORY;
842 spin_lock(&Database->lock);
844 next = (Database->curr + 1 <= 0) ? 1 : Database->curr + 1;
846 /* Try to get a id greater than current id. */
847 result = idr_get_new_above(&Database->idr, KernelPointer, next, Id);
851 Database->curr = *Id;
854 spin_unlock(&Database->lock);
856 if (result == -EAGAIN)
863 return gcvSTATUS_OUT_OF_RESOURCES;
872 IN gcsINTEGER_DB_PTR Database,
874 OUT gctPOINTER * KernelPointer
879 spin_lock(&Database->lock);
881 pointer = idr_find(&Database->idr, Id);
883 spin_unlock(&Database->lock);
887 *KernelPointer = pointer;
893 gcvLEVEL_ERROR, gcvZONE_OS,
894 "%s(%d) Id = %d is not found",
895 __FUNCTION__, __LINE__, Id);
897 return gcvSTATUS_NOT_FOUND;
903 IN gcsINTEGER_DB_PTR Database,
907 spin_lock(&Database->lock);
909 idr_remove(&Database->idr, Id);
911 spin_unlock(&Database->lock);
919 IN gctPOINTER Logical,
923 if (unlikely(current->mm == gcvNULL))
925 /* Do nothing if process is exiting. */
929 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0)
930 if (vm_munmap((unsigned long)Logical, Size) < 0)
933 gcvLEVEL_WARNING, gcvZONE_OS,
934 "%s(%d): vm_munmap failed",
935 __FUNCTION__, __LINE__
939 down_write(¤t->mm->mmap_sem);
940 if (do_munmap(current->mm, (unsigned long)Logical, Size) < 0)
943 gcvLEVEL_WARNING, gcvZONE_OS,
944 "%s(%d): do_munmap failed",
945 __FUNCTION__, __LINE__
948 up_write(¤t->mm->mmap_sem);
953 _QueryProcessPageTable(
954 IN gctPOINTER Logical,
955 OUT gctUINT32 * Address
959 gctUINTPTR_T logical = (gctUINTPTR_T)Logical;
967 return gcvSTATUS_NOT_FOUND;
970 pgd = pgd_offset(current->mm, logical);
971 if (pgd_none(*pgd) || pgd_bad(*pgd))
973 return gcvSTATUS_NOT_FOUND;
976 pud = pud_offset(pgd, logical);
977 if (pud_none(*pud) || pud_bad(*pud))
979 return gcvSTATUS_NOT_FOUND;
982 pmd = pmd_offset(pud, logical);
983 if (pmd_none(*pmd) || pmd_bad(*pmd))
985 return gcvSTATUS_NOT_FOUND;
988 pte = pte_offset_map_lock(current->mm, pmd, logical, &lock);
991 return gcvSTATUS_NOT_FOUND;
994 if (!pte_present(*pte))
996 pte_unmap_unlock(pte, lock);
997 return gcvSTATUS_NOT_FOUND;
1000 *Address = (pte_pfn(*pte) << PAGE_SHIFT) | (logical & ~PAGE_MASK);
1001 pte_unmap_unlock(pte, lock);
1003 return gcvSTATUS_OK;
1006 /*******************************************************************************
1010 ** Construct a new gckOS object.
1014 ** gctPOINTER Context
1015 ** Pointer to the gckGALDEVICE class.
1020 ** Pointer to a variable that will hold the pointer to the gckOS object.
1024 IN gctPOINTER Context,
1031 gcmkHEADER_ARG("Context=0x%X", Context);
1033 /* Verify the arguments. */
1034 gcmkVERIFY_ARGUMENT(Os != gcvNULL);
1036 /* Allocate the gckOS object. */
1037 os = (gckOS) kmalloc(gcmSIZEOF(struct _gckOS), GFP_KERNEL | gcdNOWARN);
1041 /* Out of memory. */
1042 gcmkFOOTER_ARG("status=%d", gcvSTATUS_OUT_OF_MEMORY);
1043 return gcvSTATUS_OUT_OF_MEMORY;
1046 /* Zero the memory. */
1047 gckOS_ZeroMemory(os, gcmSIZEOF(struct _gckOS));
1049 /* Initialize the gckOS object. */
1050 os->object.type = gcvOBJ_OS;
1052 /* Set device device. */
1053 os->device = Context;
1055 /* IMPORTANT! No heap yet. */
1058 /* Initialize the memory lock. */
1059 gcmkONERROR(gckOS_CreateMutex(os, &os->memoryLock));
1060 gcmkONERROR(gckOS_CreateMutex(os, &os->memoryMapLock));
1062 /* Create debug lock mutex. */
1063 gcmkONERROR(gckOS_CreateMutex(os, &os->debugLock));
1066 os->mdlHead = os->mdlTail = gcvNULL;
1068 /* Get the kernel process ID. */
1069 gcmkONERROR(gckOS_GetProcessID(&os->kernelProcessID));
1072 * Initialize the signal manager.
1075 /* Initialize mutex. */
1076 gcmkONERROR(gckOS_CreateMutex(os, &os->signalMutex));
1078 /* Initialize signal id database lock. */
1079 spin_lock_init(&os->signalDB.lock);
1081 /* Initialize signal id database. */
1082 idr_init(&os->signalDB.idr);
1084 #if gcdANDROID_NATIVE_FENCE_SYNC
1086 * Initialize the sync point manager.
1089 /* Initialize mutex. */
1090 gcmkONERROR(gckOS_CreateMutex(os, &os->syncPointMutex));
1092 /* Initialize sync point id database lock. */
1093 spin_lock_init(&os->syncPointDB.lock);
1095 /* Initialize sync point id database. */
1096 idr_init(&os->syncPointDB.idr);
1099 #if gcdUSE_NON_PAGED_MEMORY_CACHE
1101 os->cacheHead = gcvNULL;
1102 os->cacheTail = gcvNULL;
1105 /* Create a workqueue for os timer. */
1106 os->workqueue = create_singlethread_workqueue("galcore workqueue");
1108 if (os->workqueue == gcvNULL)
1110 /* Out of memory. */
1111 gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
1114 /* Return pointer to the gckOS object. */
1118 gcmkFOOTER_ARG("*Os=0x%X", *Os);
1119 return gcvSTATUS_OK;
1123 #if gcdANDROID_NATIVE_FENCE_SYNC
1124 if (os->syncPointMutex != gcvNULL)
1127 gckOS_DeleteMutex(os, os->syncPointMutex));
1131 if (os->signalMutex != gcvNULL)
1134 gckOS_DeleteMutex(os, os->signalMutex));
1137 if (os->heap != gcvNULL)
1140 gckHEAP_Destroy(os->heap));
1143 if (os->memoryMapLock != gcvNULL)
1146 gckOS_DeleteMutex(os, os->memoryMapLock));
1149 if (os->memoryLock != gcvNULL)
1152 gckOS_DeleteMutex(os, os->memoryLock));
1155 if (os->debugLock != gcvNULL)
1158 gckOS_DeleteMutex(os, os->debugLock));
1161 if (os->workqueue != gcvNULL)
1163 destroy_workqueue(os->workqueue);
1168 /* Return the error. */
1173 /*******************************************************************************
1177 ** Destroy an gckOS object.
1182 ** Pointer to an gckOS object that needs to be destroyed.
1195 gcmkHEADER_ARG("Os=0x%X", Os);
1197 /* Verify the arguments. */
1198 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
1200 #if gcdUSE_NON_PAGED_MEMORY_CACHE
1201 _FreeAllNonPagedMemoryCache(Os);
1204 #if gcdANDROID_NATIVE_FENCE_SYNC
1206 * Destroy the sync point manager.
1209 /* Destroy the mutex. */
1210 gcmkVERIFY_OK(gckOS_DeleteMutex(Os, Os->syncPointMutex));
1214 * Destroy the signal manager.
1217 /* Destroy the mutex. */
1218 gcmkVERIFY_OK(gckOS_DeleteMutex(Os, Os->signalMutex));
1220 if (Os->heap != gcvNULL)
1222 /* Mark gckHEAP as gone. */
1226 /* Destroy the gckHEAP object. */
1227 gcmkVERIFY_OK(gckHEAP_Destroy(heap));
1230 /* Destroy the memory lock. */
1231 gcmkVERIFY_OK(gckOS_DeleteMutex(Os, Os->memoryMapLock));
1232 gcmkVERIFY_OK(gckOS_DeleteMutex(Os, Os->memoryLock));
1234 /* Destroy debug lock mutex. */
1235 gcmkVERIFY_OK(gckOS_DeleteMutex(Os, Os->debugLock));
1237 /* Wait for all works done. */
1238 flush_workqueue(Os->workqueue);
1240 /* Destory work queue. */
1241 destroy_workqueue(Os->workqueue);
1243 /* Flush the debug cache. */
1244 gcmkDEBUGFLUSH(~0U);
1246 /* Mark the gckOS object as unknown. */
1247 Os->object.type = gcvOBJ_UNKNOWN;
1249 /* Free the gckOS object. */
1254 return gcvSTATUS_OK;
1258 _CreateKernelVirtualMapping(
1263 gctINT numPages = Mdl->numPages;
1265 #if gcdNONPAGED_MEMORY_CACHEABLE
1266 if (Mdl->contiguous)
1268 addr = page_address(Mdl->u.contiguousPages);
1272 addr = vmap(Mdl->u.nonContiguousPages,
1277 /* Trigger a page fault. */
1278 memset(addr, 0, numPages * PAGE_SIZE);
1281 struct page ** pages;
1282 gctBOOL free = gcvFALSE;
1285 if (Mdl->contiguous)
1287 pages = kmalloc(sizeof(struct page *) * numPages, GFP_KERNEL | gcdNOWARN);
1294 for (i = 0; i < numPages; i++)
1296 pages[i] = nth_page(Mdl->u.contiguousPages, i);
1303 pages = Mdl->u.nonContiguousPages;
1306 /* ioremap() can't work on system memory since 2.6.38. */
1307 addr = vmap(pages, numPages, 0, gcmkNONPAGED_MEMROY_PROT(PAGE_KERNEL));
1309 /* Trigger a page fault. */
1310 memset(addr, 0, numPages * PAGE_SIZE);
1323 _DestoryKernelVirtualMapping(
1327 #if !gcdNONPAGED_MEMORY_CACHEABLE
1333 gckOS_CreateKernelVirtualMapping(
1334 IN gctPHYS_ADDR Physical,
1335 OUT gctSIZE_T * PageCount,
1336 OUT gctPOINTER * Logical
1339 *PageCount = ((PLINUX_MDL)Physical)->numPages;
1340 *Logical = _CreateKernelVirtualMapping((PLINUX_MDL)Physical);
1342 return gcvSTATUS_OK;
1346 gckOS_DestroyKernelVirtualMapping(
1347 IN gctPOINTER Logical
1350 _DestoryKernelVirtualMapping((gctSTRING)Logical);
1351 return gcvSTATUS_OK;
1354 /*******************************************************************************
1363 ** Pointer to an gckOS object.
1366 ** Number of bytes to allocate.
1370 ** gctPOINTER * Memory
1371 ** Pointer to a variable that will hold the allocated memory location.
1377 OUT gctPOINTER * Memory
1382 gcmkHEADER_ARG("Os=0x%X Bytes=%lu", Os, Bytes);
1384 /* Verify the arguments. */
1385 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
1386 gcmkVERIFY_ARGUMENT(Bytes > 0);
1387 gcmkVERIFY_ARGUMENT(Memory != gcvNULL);
1389 /* Do we have a heap? */
1390 if (Os->heap != gcvNULL)
1392 /* Allocate from the heap. */
1393 gcmkONERROR(gckHEAP_Allocate(Os->heap, Bytes, Memory));
1397 gcmkONERROR(gckOS_AllocateMemory(Os, Bytes, Memory));
1401 gcmkFOOTER_ARG("*Memory=0x%X", *Memory);
1402 return gcvSTATUS_OK;
1405 /* Return the status. */
1410 /*******************************************************************************
1414 ** Free allocated memory.
1419 ** Pointer to an gckOS object.
1421 ** gctPOINTER Memory
1422 ** Pointer to memory allocation to free.
1431 IN gctPOINTER Memory
1436 gcmkHEADER_ARG("Os=0x%X Memory=0x%X", Os, Memory);
1438 /* Verify the arguments. */
1439 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
1440 gcmkVERIFY_ARGUMENT(Memory != gcvNULL);
1442 /* Do we have a heap? */
1443 if (Os->heap != gcvNULL)
1445 /* Free from the heap. */
1446 gcmkONERROR(gckHEAP_Free(Os->heap, Memory));
1450 gcmkONERROR(gckOS_FreeMemory(Os, Memory));
1455 return gcvSTATUS_OK;
1458 /* Return the status. */
1463 /*******************************************************************************
1465 ** gckOS_AllocateMemory
1467 ** Allocate memory wrapper.
1472 ** Number of bytes to allocate.
1476 ** gctPOINTER * Memory
1477 ** Pointer to a variable that will hold the allocated memory location.
1480 gckOS_AllocateMemory(
1483 OUT gctPOINTER * Memory
1489 gcmkHEADER_ARG("Os=0x%X Bytes=%lu", Os, Bytes);
1491 /* Verify the arguments. */
1492 gcmkVERIFY_ARGUMENT(Bytes > 0);
1493 gcmkVERIFY_ARGUMENT(Memory != gcvNULL);
1495 if (Bytes > PAGE_SIZE)
1497 memory = (gctPOINTER) vmalloc(Bytes);
1501 memory = (gctPOINTER) kmalloc(Bytes, GFP_KERNEL | gcdNOWARN);
1504 if (memory == gcvNULL)
1506 /* Out of memory. */
1507 gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
1510 /* Return pointer to the memory allocation. */
1514 gcmkFOOTER_ARG("*Memory=0x%X", *Memory);
1515 return gcvSTATUS_OK;
1518 /* Return the status. */
1523 /*******************************************************************************
1527 ** Free allocated memory wrapper.
1531 ** gctPOINTER Memory
1532 ** Pointer to memory allocation to free.
1541 IN gctPOINTER Memory
1544 gcmkHEADER_ARG("Memory=0x%X", Memory);
1546 /* Verify the arguments. */
1547 gcmkVERIFY_ARGUMENT(Memory != gcvNULL);
1549 /* Free the memory from the OS pool. */
1550 if (is_vmalloc_addr(Memory))
1561 return gcvSTATUS_OK;
1564 /*******************************************************************************
1568 ** Map physical memory into the current process.
1573 ** Pointer to an gckOS object.
1575 ** gctPHYS_ADDR Physical
1576 ** Start of physical address memory.
1579 ** Number of bytes to map.
1583 ** gctPOINTER * Memory
1584 ** Pointer to a variable that will hold the logical address of the
1590 IN gctPHYS_ADDR Physical,
1592 OUT gctPOINTER * Logical
1595 PLINUX_MDL_MAP mdlMap;
1596 PLINUX_MDL mdl = (PLINUX_MDL)Physical;
1598 gcmkHEADER_ARG("Os=0x%X Physical=0x%X Bytes=%lu", Os, Physical, Bytes);
1600 /* Verify the arguments. */
1601 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
1602 gcmkVERIFY_ARGUMENT(Physical != 0);
1603 gcmkVERIFY_ARGUMENT(Bytes > 0);
1604 gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
1608 mdlMap = FindMdlMap(mdl, _GetProcessID());
1610 if (mdlMap == gcvNULL)
1612 mdlMap = _CreateMdlMap(mdl, _GetProcessID());
1614 if (mdlMap == gcvNULL)
1618 gcmkFOOTER_ARG("status=%d", gcvSTATUS_OUT_OF_MEMORY);
1619 return gcvSTATUS_OUT_OF_MEMORY;
1623 if (mdlMap->vmaAddr == gcvNULL)
1625 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0)
1626 mdlMap->vmaAddr = (char *)vm_mmap(gcvNULL,
1628 mdl->numPages * PAGE_SIZE,
1629 PROT_READ | PROT_WRITE,
1633 down_write(¤t->mm->mmap_sem);
1635 mdlMap->vmaAddr = (char *)do_mmap_pgoff(gcvNULL,
1637 mdl->numPages * PAGE_SIZE,
1638 PROT_READ | PROT_WRITE,
1642 up_write(¤t->mm->mmap_sem);
1645 if (IS_ERR(mdlMap->vmaAddr))
1649 "%s(%d): do_mmap_pgoff error",
1650 __FUNCTION__, __LINE__
1655 "%s(%d): mdl->numPages: %d mdl->vmaAddr: 0x%X",
1656 __FUNCTION__, __LINE__,
1661 mdlMap->vmaAddr = gcvNULL;
1665 gcmkFOOTER_ARG("status=%d", gcvSTATUS_OUT_OF_MEMORY);
1666 return gcvSTATUS_OUT_OF_MEMORY;
1669 down_write(¤t->mm->mmap_sem);
1671 mdlMap->vma = find_vma(current->mm, (unsigned long)mdlMap->vmaAddr);
1677 "%s(%d): find_vma error.",
1678 __FUNCTION__, __LINE__
1681 mdlMap->vmaAddr = gcvNULL;
1683 up_write(¤t->mm->mmap_sem);
1687 gcmkFOOTER_ARG("status=%d", gcvSTATUS_OUT_OF_RESOURCES);
1688 return gcvSTATUS_OUT_OF_RESOURCES;
1691 #ifndef NO_DMA_COHERENT
1692 if (dma_mmap_coherent(gcvNULL,
1696 mdl->numPages * PAGE_SIZE) < 0)
1698 up_write(¤t->mm->mmap_sem);
1702 "%s(%d): dma_mmap_coherent error.",
1703 __FUNCTION__, __LINE__
1706 mdlMap->vmaAddr = gcvNULL;
1710 gcmkFOOTER_ARG("status=%d", gcvSTATUS_OUT_OF_RESOURCES);
1711 return gcvSTATUS_OUT_OF_RESOURCES;
1714 #if !gcdPAGED_MEMORY_CACHEABLE
1715 mdlMap->vma->vm_page_prot = gcmkPAGED_MEMROY_PROT(mdlMap->vma->vm_page_prot);
1716 mdlMap->vma->vm_flags |= gcdVM_FLAGS;
1718 mdlMap->vma->vm_pgoff = 0;
1720 if (remap_pfn_range(mdlMap->vma,
1721 mdlMap->vma->vm_start,
1722 mdl->dmaHandle >> PAGE_SHIFT,
1723 mdl->numPages*PAGE_SIZE,
1724 mdlMap->vma->vm_page_prot) < 0)
1726 up_write(¤t->mm->mmap_sem);
1730 "%s(%d): remap_pfn_range error.",
1731 __FUNCTION__, __LINE__
1734 mdlMap->vmaAddr = gcvNULL;
1738 gcmkFOOTER_ARG("status=%d", gcvSTATUS_OUT_OF_RESOURCES);
1739 return gcvSTATUS_OUT_OF_RESOURCES;
1743 up_write(¤t->mm->mmap_sem);
1748 *Logical = mdlMap->vmaAddr;
1750 gcmkFOOTER_ARG("*Logical=0x%X", *Logical);
1751 return gcvSTATUS_OK;
1754 /*******************************************************************************
1756 ** gckOS_UnmapMemory
1758 ** Unmap physical memory out of the current process.
1763 ** Pointer to an gckOS object.
1765 ** gctPHYS_ADDR Physical
1766 ** Start of physical address memory.
1769 ** Number of bytes to unmap.
1771 ** gctPOINTER Memory
1772 ** Pointer to a previously mapped memory region.
1781 IN gctPHYS_ADDR Physical,
1783 IN gctPOINTER Logical
1786 gcmkHEADER_ARG("Os=0x%X Physical=0x%X Bytes=%lu Logical=0x%X",
1787 Os, Physical, Bytes, Logical);
1789 /* Verify the arguments. */
1790 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
1791 gcmkVERIFY_ARGUMENT(Physical != 0);
1792 gcmkVERIFY_ARGUMENT(Bytes > 0);
1793 gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
1795 gckOS_UnmapMemoryEx(Os, Physical, Bytes, Logical, _GetProcessID());
1799 return gcvSTATUS_OK;
1803 /*******************************************************************************
1805 ** gckOS_UnmapMemoryEx
1807 ** Unmap physical memory in the specified process.
1812 ** Pointer to an gckOS object.
1814 ** gctPHYS_ADDR Physical
1815 ** Start of physical address memory.
1818 ** Number of bytes to unmap.
1820 ** gctPOINTER Memory
1821 ** Pointer to a previously mapped memory region.
1824 ** Pid of the process that opened the device and mapped this memory.
1831 gckOS_UnmapMemoryEx(
1833 IN gctPHYS_ADDR Physical,
1835 IN gctPOINTER Logical,
1839 PLINUX_MDL_MAP mdlMap;
1840 PLINUX_MDL mdl = (PLINUX_MDL)Physical;
1842 gcmkHEADER_ARG("Os=0x%X Physical=0x%X Bytes=%lu Logical=0x%X PID=%d",
1843 Os, Physical, Bytes, Logical, PID);
1845 /* Verify the arguments. */
1846 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
1847 gcmkVERIFY_ARGUMENT(Physical != 0);
1848 gcmkVERIFY_ARGUMENT(Bytes > 0);
1849 gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
1850 gcmkVERIFY_ARGUMENT(PID != 0);
1856 mdlMap = FindMdlMap(mdl, PID);
1858 if (mdlMap == gcvNULL || mdlMap->vmaAddr == gcvNULL)
1862 gcmkFOOTER_ARG("status=%d", gcvSTATUS_INVALID_ARGUMENT);
1863 return gcvSTATUS_INVALID_ARGUMENT;
1866 _UnmapUserLogical(PID, mdlMap->vmaAddr, mdl->numPages * PAGE_SIZE);
1868 gcmkVERIFY_OK(_DestroyMdlMap(mdl, mdlMap));
1875 return gcvSTATUS_OK;
1878 /*******************************************************************************
1880 ** gckOS_UnmapUserLogical
1882 ** Unmap user logical memory out of physical memory.
1887 ** Pointer to an gckOS object.
1889 ** gctPHYS_ADDR Physical
1890 ** Start of physical address memory.
1893 ** Number of bytes to unmap.
1895 ** gctPOINTER Memory
1896 ** Pointer to a previously mapped memory region.
1903 gckOS_UnmapUserLogical(
1905 IN gctPHYS_ADDR Physical,
1907 IN gctPOINTER Logical
1910 gcmkHEADER_ARG("Os=0x%X Physical=0x%X Bytes=%lu Logical=0x%X",
1911 Os, Physical, Bytes, Logical);
1913 /* Verify the arguments. */
1914 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
1915 gcmkVERIFY_ARGUMENT(Physical != 0);
1916 gcmkVERIFY_ARGUMENT(Bytes > 0);
1917 gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
1919 gckOS_UnmapMemory(Os, Physical, Bytes, Logical);
1923 return gcvSTATUS_OK;
1927 /*******************************************************************************
1929 ** gckOS_AllocateNonPagedMemory
1931 ** Allocate a number of pages from non-paged memory.
1936 ** Pointer to an gckOS object.
1938 ** gctBOOL InUserSpace
1939 ** gcvTRUE if the pages need to be mapped into user space.
1941 ** gctSIZE_T * Bytes
1942 ** Pointer to a variable that holds the number of bytes to allocate.
1946 ** gctSIZE_T * Bytes
1947 ** Pointer to a variable that hold the number of bytes allocated.
1949 ** gctPHYS_ADDR * Physical
1950 ** Pointer to a variable that will hold the physical address of the
1953 ** gctPOINTER * Logical
1954 ** Pointer to a variable that will hold the logical address of the
1958 gckOS_AllocateNonPagedMemory(
1960 IN gctBOOL InUserSpace,
1961 IN OUT gctSIZE_T * Bytes,
1962 OUT gctPHYS_ADDR * Physical,
1963 OUT gctPOINTER * Logical
1968 PLINUX_MDL mdl = gcvNULL;
1969 PLINUX_MDL_MAP mdlMap = gcvNULL;
1971 #ifdef NO_DMA_COHERENT
1976 gctBOOL locked = gcvFALSE;
1979 gcmkHEADER_ARG("Os=0x%X InUserSpace=%d *Bytes=%lu",
1980 Os, InUserSpace, gcmOPT_VALUE(Bytes));
1982 /* Verify the arguments. */
1983 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
1984 gcmkVERIFY_ARGUMENT(Bytes != gcvNULL);
1985 gcmkVERIFY_ARGUMENT(*Bytes > 0);
1986 gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
1987 gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
1989 /* Align number of bytes to page size. */
1990 bytes = gcmALIGN(*Bytes, PAGE_SIZE);
1992 /* Get total number of pages.. */
1993 numPages = GetPageCount(bytes, 0);
1995 /* Allocate mdl+vector structure */
1996 mdl = _CreateMdl(_GetProcessID());
1999 gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
2003 mdl->numPages = numPages;
2008 #ifndef NO_DMA_COHERENT
2009 #if gcdUSE_NON_PAGED_MEMORY_CACHE
2010 addr = _GetNonPagedMemoryCache(Os,
2011 mdl->numPages * PAGE_SIZE,
2014 if (addr == gcvNULL)
2017 addr = dma_alloc_coherent(gcvNULL,
2018 mdl->numPages * PAGE_SIZE,
2020 GFP_KERNEL | gcdNOWARN);
2022 #if gcdUSE_NON_PAGED_MEMORY_CACHE
2027 /*Free all cache and try again*/
2028 _FreeAllNonPagedMemoryCache(Os);
2031 addr = dma_alloc_coherent(gcvNULL,
2032 mdl->numPages * PAGE_SIZE,
2034 GFP_KERNEL | gcdNOWARN);
2038 size = mdl->numPages * PAGE_SIZE;
2039 order = get_order(size);
2040 #if gcdUSE_NON_PAGED_MEMORY_CACHE
2041 page = _GetNonPagedMemoryCache(Os, order);
2043 if (page == gcvNULL)
2046 page = alloc_pages(GFP_KERNEL | gcdNOWARN, order);
2049 if (page == gcvNULL)
2051 gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
2054 vaddr = (gctPOINTER)page_address(page);
2055 mdl->contiguous = gcvTRUE;
2056 mdl->u.contiguousPages = page;
2057 addr = _CreateKernelVirtualMapping(mdl);
2058 mdl->dmaHandle = virt_to_phys(vaddr);
2060 mdl->u.contiguousPages = page;
2062 #if !defined(CONFIG_PPC)
2063 /* Cache invalidate. */
2064 dma_sync_single_for_device(
2073 SetPageReserved(virt_to_page(vaddr));
2080 if (addr == gcvNULL)
2082 gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
2087 /* Return allocated memory. */
2089 *Physical = (gctPHYS_ADDR) mdl;
2093 mdlMap = _CreateMdlMap(mdl, _GetProcessID());
2095 if (mdlMap == gcvNULL)
2097 gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
2100 /* Only after mmap this will be valid. */
2102 /* We need to map this to user space. */
2103 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0)
2104 mdlMap->vmaAddr = (gctSTRING) vm_mmap(gcvNULL,
2106 mdl->numPages * PAGE_SIZE,
2107 PROT_READ | PROT_WRITE,
2111 down_write(¤t->mm->mmap_sem);
2113 mdlMap->vmaAddr = (gctSTRING) do_mmap_pgoff(gcvNULL,
2115 mdl->numPages * PAGE_SIZE,
2116 PROT_READ | PROT_WRITE,
2120 up_write(¤t->mm->mmap_sem);
2123 if (IS_ERR(mdlMap->vmaAddr))
2126 gcvLEVEL_WARNING, gcvZONE_OS,
2127 "%s(%d): do_mmap_pgoff error",
2128 __FUNCTION__, __LINE__
2131 mdlMap->vmaAddr = gcvNULL;
2133 gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
2136 down_write(¤t->mm->mmap_sem);
2138 mdlMap->vma = find_vma(current->mm, (unsigned long)mdlMap->vmaAddr);
2140 if (mdlMap->vma == gcvNULL)
2143 gcvLEVEL_WARNING, gcvZONE_OS,
2144 "%s(%d): find_vma error",
2145 __FUNCTION__, __LINE__
2148 up_write(¤t->mm->mmap_sem);
2150 gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
2153 #ifndef NO_DMA_COHERENT
2154 if (dma_mmap_coherent(gcvNULL,
2158 mdl->numPages * PAGE_SIZE) < 0)
2161 gcvLEVEL_WARNING, gcvZONE_OS,
2162 "%s(%d): dma_mmap_coherent error",
2163 __FUNCTION__, __LINE__
2166 up_write(¤t->mm->mmap_sem);
2168 gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
2171 mdlMap->vma->vm_page_prot = gcmkNONPAGED_MEMROY_PROT(mdlMap->vma->vm_page_prot);
2172 mdlMap->vma->vm_flags |= gcdVM_FLAGS;
2173 mdlMap->vma->vm_pgoff = 0;
2175 if (remap_pfn_range(mdlMap->vma,
2176 mdlMap->vma->vm_start,
2177 mdl->dmaHandle >> PAGE_SHIFT,
2178 mdl->numPages * PAGE_SIZE,
2179 mdlMap->vma->vm_page_prot))
2182 gcvLEVEL_WARNING, gcvZONE_OS,
2183 "%s(%d): remap_pfn_range error",
2184 __FUNCTION__, __LINE__
2187 up_write(¤t->mm->mmap_sem);
2189 gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
2191 #endif /* NO_DMA_COHERENT */
2193 up_write(¤t->mm->mmap_sem);
2195 *Logical = mdlMap->vmaAddr;
2199 *Logical = (gctPOINTER)mdl->addr;
2203 * Add this to a global list.
2204 * Will be used by get physical address
2205 * and mapuser pointer functions.
2210 /* Initialize the queue. */
2211 Os->mdlHead = Os->mdlTail = mdl;
2215 /* Add to the tail. */
2216 mdl->prev = Os->mdlTail;
2217 Os->mdlTail->next = mdl;
2224 gcmkFOOTER_ARG("*Bytes=%lu *Physical=0x%X *Logical=0x%X",
2225 *Bytes, *Physical, *Logical);
2226 return gcvSTATUS_OK;
2229 if (mdlMap != gcvNULL)
2231 /* Free LINUX_MDL_MAP. */
2232 gcmkVERIFY_OK(_DestroyMdlMap(mdl, mdlMap));
2237 /* Free LINUX_MDL. */
2238 gcmkVERIFY_OK(_DestroyMdl(mdl));
2243 /* Unlock memory. */
2247 /* Return the status. */
2252 /*******************************************************************************
2254 ** gckOS_FreeNonPagedMemory
2256 ** Free previously allocated and mapped pages from non-paged memory.
2261 ** Pointer to an gckOS object.
2264 ** Number of bytes allocated.
2266 ** gctPHYS_ADDR Physical
2267 ** Physical address of the allocated memory.
2269 ** gctPOINTER Logical
2270 ** Logical address of the allocated memory.
2276 gceSTATUS gckOS_FreeNonPagedMemory(
2279 IN gctPHYS_ADDR Physical,
2280 IN gctPOINTER Logical
2284 PLINUX_MDL_MAP mdlMap;
2285 #ifdef NO_DMA_COHERENT
2288 #endif /* NO_DMA_COHERENT */
2290 gcmkHEADER_ARG("Os=0x%X Bytes=%lu Physical=0x%X Logical=0x%X",
2291 Os, Bytes, Physical, Logical);
2293 /* Verify the arguments. */
2294 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
2295 gcmkVERIFY_ARGUMENT(Bytes > 0);
2296 gcmkVERIFY_ARGUMENT(Physical != 0);
2297 gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
2299 /* Convert physical address into a pointer to a MDL. */
2300 mdl = (PLINUX_MDL) Physical;
2304 #ifndef NO_DMA_COHERENT
2305 #if gcdUSE_NON_PAGED_MEMORY_CACHE
2306 if (!_AddNonPagedMemoryCache(Os,
2307 mdl->numPages * PAGE_SIZE,
2312 dma_free_coherent(gcvNULL,
2313 mdl->numPages * PAGE_SIZE,
2318 size = mdl->numPages * PAGE_SIZE;
2323 ClearPageReserved(virt_to_page(vaddr));
2329 #if gcdUSE_NON_PAGED_MEMORY_CACHE
2330 if (!_AddNonPagedMemoryCache(Os,
2331 get_order(mdl->numPages * PAGE_SIZE),
2332 virt_to_page(mdl->kaddr)))
2335 free_pages((unsigned long)mdl->kaddr, get_order(mdl->numPages * PAGE_SIZE));
2338 _DestoryKernelVirtualMapping(mdl->addr);
2339 #endif /* NO_DMA_COHERENT */
2343 while (mdlMap != gcvNULL)
2345 if (mdlMap->vmaAddr != gcvNULL)
2347 /* No mapped memory exists when free nonpaged memory */
2351 mdlMap = mdlMap->next;
2354 /* Remove the node from global list.. */
2355 if (mdl == Os->mdlHead)
2357 if ((Os->mdlHead = mdl->next) == gcvNULL)
2359 Os->mdlTail = gcvNULL;
2364 mdl->prev->next = mdl->next;
2365 if (mdl == Os->mdlTail)
2367 Os->mdlTail = mdl->prev;
2371 mdl->next->prev = mdl->prev;
2377 gcmkVERIFY_OK(_DestroyMdl(mdl));
2381 return gcvSTATUS_OK;
2384 /*******************************************************************************
2386 ** gckOS_ReadRegister
2388 ** Read data from a register.
2393 ** Pointer to an gckOS object.
2395 ** gctUINT32 Address
2396 ** Address of register.
2401 ** Pointer to a variable that receives the data read from the register.
2406 IN gctUINT32 Address,
2407 OUT gctUINT32 * Data
2410 return gckOS_ReadRegisterEx(Os, gcvCORE_MAJOR, Address, Data);
2414 gckOS_ReadRegisterEx(
2417 IN gctUINT32 Address,
2418 OUT gctUINT32 * Data
2421 gcmkHEADER_ARG("Os=0x%X Core=%d Address=0x%X", Os, Core, Address);
2423 /* Verify the arguments. */
2424 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
2425 gcmkVERIFY_ARGUMENT(Address < Os->device->requestedRegisterMemSizes[Core]);
2426 gcmkVERIFY_ARGUMENT(Data != gcvNULL);
2428 *Data = readl((gctUINT8 *)Os->device->registerBases[Core] + Address);
2431 gcmkFOOTER_ARG("*Data=0x%08x", *Data);
2432 return gcvSTATUS_OK;
2435 /*******************************************************************************
2437 ** gckOS_WriteRegister
2439 ** Write data to a register.
2444 ** Pointer to an gckOS object.
2446 ** gctUINT32 Address
2447 ** Address of register.
2450 ** Data for register.
2457 gckOS_WriteRegister(
2459 IN gctUINT32 Address,
2463 return gckOS_WriteRegisterEx(Os, gcvCORE_MAJOR, Address, Data);
2467 gckOS_WriteRegisterEx(
2470 IN gctUINT32 Address,
2474 gcmkHEADER_ARG("Os=0x%X Core=%d Address=0x%X Data=0x%08x", Os, Core, Address, Data);
2476 gcmkVERIFY_ARGUMENT(Address < Os->device->requestedRegisterMemSizes[Core]);
2478 writel(Data, (gctUINT8 *)Os->device->registerBases[Core] + Address);
2482 return gcvSTATUS_OK;
2485 /*******************************************************************************
2487 ** gckOS_GetPageSize
2489 ** Get the system's page size.
2494 ** Pointer to an gckOS object.
2498 ** gctSIZE_T * PageSize
2499 ** Pointer to a variable that will receive the system's page size.
2501 gceSTATUS gckOS_GetPageSize(
2503 OUT gctSIZE_T * PageSize
2506 gcmkHEADER_ARG("Os=0x%X", Os);
2508 /* Verify the arguments. */
2509 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
2510 gcmkVERIFY_ARGUMENT(PageSize != gcvNULL);
2512 /* Return the page size. */
2513 *PageSize = (gctSIZE_T) PAGE_SIZE;
2516 gcmkFOOTER_ARG("*PageSize", *PageSize);
2517 return gcvSTATUS_OK;
2520 /*******************************************************************************
2522 ** gckOS_GetPhysicalAddress
2524 ** Get the physical system address of a corresponding virtual address.
2529 ** Pointer to an gckOS object.
2531 ** gctPOINTER Logical
2536 ** gctUINT32 * Address
2537 ** Poinetr to a variable that receives the 32-bit physical adress.
2540 gckOS_GetPhysicalAddress(
2542 IN gctPOINTER Logical,
2543 OUT gctUINT32 * Address
2547 gctUINT32 processID;
2549 gcmkHEADER_ARG("Os=0x%X Logical=0x%X", Os, Logical);
2551 /* Verify the arguments. */
2552 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
2553 gcmkVERIFY_ARGUMENT(Address != gcvNULL);
2555 /* Query page table of current process first. */
2556 status = _QueryProcessPageTable(Logical, Address);
2558 if (gcmIS_ERROR(status))
2560 /* Get current process ID. */
2561 processID = _GetProcessID();
2563 /* Route through other function. */
2565 gckOS_GetPhysicalAddressProcess(Os, Logical, processID, Address));
2569 gcmkFOOTER_ARG("*Address=0x%08x", *Address);
2570 return gcvSTATUS_OK;
2573 /* Return the status. */
2582 IN gctUINT32 Physical,
2583 IN gctPOINTER Logical,
2588 gcsUSER_MAPPING_PTR map;
2590 gcmkHEADER_ARG("Os=0x%X Physical=0x%X Logical=0x%X Bytes=%lu",
2591 Os, Physical, Logical, Bytes);
2593 gcmkONERROR(gckOS_Allocate(Os,
2594 gcmSIZEOF(gcsUSER_MAPPING),
2595 (gctPOINTER *) &map));
2597 map->next = Os->userMap;
2598 map->physical = Physical - Os->device->baseAddress;
2599 map->logical = Logical;
2601 map->start = (gctINT8_PTR) Logical;
2602 map->end = map->start + Bytes;
2607 return gcvSTATUS_OK;
2615 gckOS_RemoveMapping(
2617 IN gctPOINTER Logical,
2622 gcsUSER_MAPPING_PTR map, prev;
2624 gcmkHEADER_ARG("Os=0x%X Logical=0x%X Bytes=%lu", Os, Logical, Bytes);
2626 for (map = Os->userMap, prev = gcvNULL; map != gcvNULL; map = map->next)
2628 if ((map->logical == Logical)
2629 && (map->bytes == Bytes)
2640 gcmkONERROR(gcvSTATUS_INVALID_ADDRESS);
2643 if (prev == gcvNULL)
2645 Os->userMap = map->next;
2649 prev->next = map->next;
2652 gcmkONERROR(gcmkOS_SAFE_FREE(Os, map));
2655 return gcvSTATUS_OK;
2664 _ConvertLogical2Physical(
2666 IN gctPOINTER Logical,
2667 IN gctUINT32 ProcessID,
2669 OUT gctUINT32_PTR Physical
2672 gctINT8_PTR base, vBase;
2675 gcsUSER_MAPPING_PTR userMap;
2677 base = (Mdl == gcvNULL) ? gcvNULL : (gctINT8_PTR) Mdl->addr;
2679 /* Check for the logical address match. */
2680 if ((base != gcvNULL)
2681 && ((gctINT8_PTR) Logical >= base)
2682 && ((gctINT8_PTR) Logical < base + Mdl->numPages * PAGE_SIZE)
2685 offset = (gctINT8_PTR) Logical - base;
2687 if (Mdl->dmaHandle != 0)
2689 /* The memory was from coherent area. */
2690 *Physical = (gctUINT32) Mdl->dmaHandle + offset;
2692 else if (Mdl->pagedMem && !Mdl->contiguous)
2694 /* paged memory is not mapped to kernel space. */
2695 return gcvSTATUS_INVALID_ADDRESS;
2699 *Physical = gcmPTR2INT(virt_to_phys(base)) + offset;
2702 return gcvSTATUS_OK;
2705 /* Walk user maps. */
2706 for (userMap = Os->userMap; userMap != gcvNULL; userMap = userMap->next)
2708 if (((gctINT8_PTR) Logical >= userMap->start)
2709 && ((gctINT8_PTR) Logical < userMap->end)
2712 *Physical = userMap->physical
2713 + (gctUINT32) ((gctINT8_PTR) Logical - userMap->start);
2715 return gcvSTATUS_OK;
2719 if (ProcessID != Os->kernelProcessID)
2721 map = FindMdlMap(Mdl, (gctINT) ProcessID);
2722 vBase = (map == gcvNULL) ? gcvNULL : (gctINT8_PTR) map->vmaAddr;
2724 /* Is the given address within that range. */
2725 if ((vBase != gcvNULL)
2726 && ((gctINT8_PTR) Logical >= vBase)
2727 && ((gctINT8_PTR) Logical < vBase + Mdl->numPages * PAGE_SIZE)
2730 offset = (gctINT8_PTR) Logical - vBase;
2732 if (Mdl->dmaHandle != 0)
2734 /* The memory was from coherent area. */
2735 *Physical = (gctUINT32) Mdl->dmaHandle + offset;
2737 else if (Mdl->pagedMem && !Mdl->contiguous)
2739 *Physical = _NonContiguousToPhys(Mdl->u.nonContiguousPages, offset/PAGE_SIZE);
2743 *Physical = page_to_phys(Mdl->u.contiguousPages) + offset;
2746 return gcvSTATUS_OK;
2750 /* Address not yet found. */
2751 return gcvSTATUS_INVALID_ADDRESS;
2754 /*******************************************************************************
2756 ** gckOS_GetPhysicalAddressProcess
2758 ** Get the physical system address of a corresponding virtual address for a
2764 ** Pointer to gckOS object.
2766 ** gctPOINTER Logical
2769 ** gctUINT32 ProcessID
2774 ** gctUINT32 * Address
2775 ** Poinetr to a variable that receives the 32-bit physical adress.
2778 gckOS_GetPhysicalAddressProcess(
2780 IN gctPOINTER Logical,
2781 IN gctUINT32 ProcessID,
2782 OUT gctUINT32 * Address
2787 gceSTATUS status = gcvSTATUS_INVALID_ADDRESS;
2789 gcmkHEADER_ARG("Os=0x%X Logical=0x%X ProcessID=%d", Os, Logical, ProcessID);
2791 /* Verify the arguments. */
2792 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
2793 gcmkVERIFY_ARGUMENT(Address != gcvNULL);
2797 /* First try the contiguous memory pool. */
2798 if (Os->device->contiguousMapped)
2800 base = (gctINT8_PTR) Os->device->contiguousBase;
2802 if (((gctINT8_PTR) Logical >= base)
2803 && ((gctINT8_PTR) Logical < base + Os->device->contiguousSize)
2806 /* Convert logical address into physical. */
2807 *Address = Os->device->contiguousVidMem->baseAddress
2808 + (gctINT8_PTR) Logical - base;
2809 status = gcvSTATUS_OK;
2814 /* Try the contiguous memory pool. */
2815 mdl = (PLINUX_MDL) Os->device->contiguousPhysical;
2816 status = _ConvertLogical2Physical(Os,
2823 if (gcmIS_ERROR(status))
2825 /* Walk all MDLs. */
2826 for (mdl = Os->mdlHead; mdl != gcvNULL; mdl = mdl->next)
2829 status = _ConvertLogical2Physical(Os,
2834 if (gcmIS_SUCCESS(status))
2843 gcmkONERROR(status);
2846 gcmkFOOTER_ARG("*Address=0x%08x", *Address);
2847 return gcvSTATUS_OK;
2850 /* Return the status. */
2855 /*******************************************************************************
2857 ** gckOS_MapPhysical
2859 ** Map a physical address into kernel space.
2864 ** Pointer to an gckOS object.
2866 ** gctUINT32 Physical
2867 ** Physical address of the memory to map.
2870 ** Number of bytes to map.
2874 ** gctPOINTER * Logical
2875 ** Pointer to a variable that receives the base address of the mapped
2881 IN gctUINT32 Physical,
2883 OUT gctPOINTER * Logical
2888 gctUINT32 physical = Physical;
2890 gcmkHEADER_ARG("Os=0x%X Physical=0x%X Bytes=%lu", Os, Physical, Bytes);
2892 /* Verify the arguments. */
2893 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
2894 gcmkVERIFY_ARGUMENT(Bytes > 0);
2895 gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
2899 /* Go through our mapping to see if we know this physical address already. */
2902 while (mdl != gcvNULL)
2904 if (mdl->dmaHandle != 0)
2906 if ((physical >= mdl->dmaHandle)
2907 && (physical < mdl->dmaHandle + mdl->numPages * PAGE_SIZE)
2910 *Logical = mdl->addr + (physical - mdl->dmaHandle);
2920 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
2921 struct contiguous_mem_pool *pool = Os->device->pool;
2923 if (Physical >= pool->phys && Physical < pool->phys + pool->size)
2924 logical = (gctPOINTER)(Physical - pool->phys + pool->virt);
2928 /* Map memory as cached memory. */
2929 request_mem_region(physical, Bytes, "MapRegion");
2930 logical = (gctPOINTER) ioremap_nocache(physical, Bytes);
2933 if (logical == gcvNULL)
2936 gcvLEVEL_INFO, gcvZONE_OS,
2937 "%s(%d): Failed to map physical address 0x%08x",
2938 __FUNCTION__, __LINE__, Physical
2943 /* Out of resources. */
2944 gcmkFOOTER_ARG("status=%d", gcvSTATUS_OUT_OF_RESOURCES);
2945 return gcvSTATUS_OUT_OF_RESOURCES;
2948 /* Return pointer to mapped memory. */
2955 gcmkFOOTER_ARG("*Logical=0x%X", *Logical);
2956 return gcvSTATUS_OK;
2959 /*******************************************************************************
2961 ** gckOS_UnmapPhysical
2963 ** Unmap a previously mapped memory region from kernel memory.
2968 ** Pointer to an gckOS object.
2970 ** gctPOINTER Logical
2971 ** Pointer to the base address of the memory to unmap.
2974 ** Number of bytes to unmap.
2981 gckOS_UnmapPhysical(
2983 IN gctPOINTER Logical,
2989 gcmkHEADER_ARG("Os=0x%X Logical=0x%X Bytes=%lu", Os, Logical, Bytes);
2991 /* Verify the arguments. */
2992 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
2993 gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
2994 gcmkVERIFY_ARGUMENT(Bytes > 0);
3000 while (mdl != gcvNULL)
3002 if (mdl->addr != gcvNULL)
3004 if (Logical >= (gctPOINTER)mdl->addr
3005 && Logical < (gctPOINTER)((gctSTRING)mdl->addr + mdl->numPages * PAGE_SIZE))
3016 /* Unmap the memory. */
3024 return gcvSTATUS_OK;
3027 /*******************************************************************************
3029 ** gckOS_CreateMutex
3031 ** Create a new mutex.
3036 ** Pointer to an gckOS object.
3040 ** gctPOINTER * Mutex
3041 ** Pointer to a variable that will hold a pointer to the mutex.
3046 OUT gctPOINTER * Mutex
3051 gcmkHEADER_ARG("Os=0x%X", Os);
3053 /* Validate the arguments. */
3054 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
3055 gcmkVERIFY_ARGUMENT(Mutex != gcvNULL);
3057 /* Allocate the mutex structure. */
3058 gcmkONERROR(gckOS_Allocate(Os, gcmSIZEOF(struct mutex), Mutex));
3060 /* Initialize the mutex. */
3063 /* Return status. */
3064 gcmkFOOTER_ARG("*Mutex=0x%X", *Mutex);
3065 return gcvSTATUS_OK;
3068 /* Return status. */
3073 /*******************************************************************************
3075 ** gckOS_DeleteMutex
3082 ** Pointer to an gckOS object.
3085 ** Pointer to the mute to be deleted.
3099 gcmkHEADER_ARG("Os=0x%X Mutex=0x%X", Os, Mutex);
3101 /* Validate the arguments. */
3102 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
3103 gcmkVERIFY_ARGUMENT(Mutex != gcvNULL);
3105 /* Destroy the mutex. */
3106 mutex_destroy(Mutex);
3108 /* Free the mutex structure. */
3109 gcmkONERROR(gckOS_Free(Os, Mutex));
3112 return gcvSTATUS_OK;
3115 /* Return status. */
3120 /*******************************************************************************
3122 ** gckOS_AcquireMutex
3129 ** Pointer to an gckOS object.
3132 ** Pointer to the mutex to be acquired.
3134 ** gctUINT32 Timeout
3135 ** Timeout value specified in milliseconds.
3136 ** Specify the value of gcvINFINITE to keep the thread suspended
3137 ** until the mutex has been acquired.
3146 IN gctPOINTER Mutex,
3147 IN gctUINT32 Timeout
3150 #if gcdDETECT_TIMEOUT
3154 gcmkHEADER_ARG("Os=0x%X Mutex=0x%0x Timeout=%u", Os, Mutex, Timeout);
3156 /* Validate the arguments. */
3157 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
3158 gcmkVERIFY_ARGUMENT(Mutex != gcvNULL);
3160 #if gcdDETECT_TIMEOUT
3165 /* Try to acquire the mutex. */
3166 if (mutex_trylock(Mutex))
3170 return gcvSTATUS_OK;
3173 /* Advance the timeout. */
3176 if (Timeout == gcvINFINITE)
3178 if (timeout == gcdINFINITE_TIMEOUT)
3180 gctUINT32 dmaAddress1, dmaAddress2;
3181 gctUINT32 dmaState1, dmaState2;
3183 dmaState1 = dmaState2 =
3184 dmaAddress1 = dmaAddress2 = 0;
3186 /* Verify whether DMA is running. */
3187 gcmkVERIFY_OK(_VerifyDMA(
3188 Os, &dmaAddress1, &dmaAddress2, &dmaState1, &dmaState2
3191 #if gcdDETECT_DMA_ADDRESS
3192 /* Dump only if DMA appears stuck. */
3194 (dmaAddress1 == dmaAddress2)
3195 #if gcdDETECT_DMA_STATE
3196 && (dmaState1 == dmaState2)
3201 gcmkVERIFY_OK(_DumpGPUState(Os, gcvCORE_MAJOR));
3204 "%s(%d): mutex 0x%X; forced message flush.",
3205 __FUNCTION__, __LINE__, Mutex
3208 /* Flush the debug cache. */
3209 gcmkDEBUGFLUSH(dmaAddress2);
3218 if (timeout >= Timeout)
3224 /* Wait for 1 millisecond. */
3225 gcmkVERIFY_OK(gckOS_Delay(Os, 1));
3228 if (Timeout == gcvINFINITE)
3230 /* Lock the mutex. */
3235 return gcvSTATUS_OK;
3240 /* Try to acquire the mutex. */
3241 if (mutex_trylock(Mutex))
3245 return gcvSTATUS_OK;
3253 /* Wait for 1 millisecond. */
3254 gcmkVERIFY_OK(gckOS_Delay(Os, 1));
3259 gcmkFOOTER_ARG("status=%d", gcvSTATUS_TIMEOUT);
3260 return gcvSTATUS_TIMEOUT;
3263 /*******************************************************************************
3265 ** gckOS_ReleaseMutex
3267 ** Release an acquired mutex.
3272 ** Pointer to an gckOS object.
3275 ** Pointer to the mutex to be released.
3287 gcmkHEADER_ARG("Os=0x%X Mutex=0x%0x", Os, Mutex);
3289 /* Validate the arguments. */
3290 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
3291 gcmkVERIFY_ARGUMENT(Mutex != gcvNULL);
3293 /* Release the mutex. */
3294 mutex_unlock(Mutex);
3298 return gcvSTATUS_OK;
3301 /*******************************************************************************
3303 ** gckOS_AtomicExchange
3305 ** Atomically exchange a pair of 32-bit values.
3310 ** Pointer to an gckOS object.
3312 ** IN OUT gctINT32_PTR Target
3313 ** Pointer to the 32-bit value to exchange.
3315 ** IN gctINT32 NewValue
3316 ** Specifies a new value for the 32-bit value pointed to by Target.
3318 ** OUT gctINT32_PTR OldValue
3319 ** The old value of the 32-bit value pointed to by Target.
3326 gckOS_AtomicExchange(
3328 IN OUT gctUINT32_PTR Target,
3329 IN gctUINT32 NewValue,
3330 OUT gctUINT32_PTR OldValue
3333 gcmkHEADER_ARG("Os=0x%X Target=0x%X NewValue=%u", Os, Target, NewValue);
3335 /* Verify the arguments. */
3336 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
3338 /* Exchange the pair of 32-bit values. */
3339 *OldValue = (gctUINT32) atomic_xchg((atomic_t *) Target, (int) NewValue);
3342 gcmkFOOTER_ARG("*OldValue=%u", *OldValue);
3343 return gcvSTATUS_OK;
3346 /*******************************************************************************
3348 ** gckOS_AtomicExchangePtr
3350 ** Atomically exchange a pair of pointers.
3355 ** Pointer to an gckOS object.
3357 ** IN OUT gctPOINTER * Target
3358 ** Pointer to the 32-bit value to exchange.
3360 ** IN gctPOINTER NewValue
3361 ** Specifies a new value for the pointer pointed to by Target.
3363 ** OUT gctPOINTER * OldValue
3364 ** The old value of the pointer pointed to by Target.
3371 gckOS_AtomicExchangePtr(
3373 IN OUT gctPOINTER * Target,
3374 IN gctPOINTER NewValue,
3375 OUT gctPOINTER * OldValue
3378 gcmkHEADER_ARG("Os=0x%X Target=0x%X NewValue=0x%X", Os, Target, NewValue);
3380 /* Verify the arguments. */
3381 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
3383 /* Exchange the pair of pointers. */
3384 *OldValue = (gctPOINTER)(gctUINTPTR_T) atomic_xchg((atomic_t *) Target, (int)(gctUINTPTR_T) NewValue);
3387 gcmkFOOTER_ARG("*OldValue=0x%X", *OldValue);
3388 return gcvSTATUS_OK;
3392 /*******************************************************************************
3394 ** gckOS_AtomicSetMask
3396 ** Atomically set mask to Atom
3399 ** IN OUT gctPOINTER Atom
3400 ** Pointer to the atom to set.
3402 ** IN gctUINT32 Mask
3415 gctUINT32 oval, nval;
3417 gcmkHEADER_ARG("Atom=0x%0x", Atom);
3418 gcmkVERIFY_ARGUMENT(Atom != gcvNULL);
3422 oval = atomic_read((atomic_t *) Atom);
3424 } while (atomic_cmpxchg((atomic_t *) Atom, oval, nval) != oval);
3427 return gcvSTATUS_OK;
3430 /*******************************************************************************
3432 ** gckOS_AtomClearMask
3434 ** Atomically clear mask from Atom
3437 ** IN OUT gctPOINTER Atom
3438 ** Pointer to the atom to clear.
3440 ** IN gctUINT32 Mask
3448 gckOS_AtomClearMask(
3453 gctUINT32 oval, nval;
3455 gcmkHEADER_ARG("Atom=0x%0x", Atom);
3456 gcmkVERIFY_ARGUMENT(Atom != gcvNULL);
3460 oval = atomic_read((atomic_t *) Atom);
3461 nval = oval & ~Mask;
3462 } while (atomic_cmpxchg((atomic_t *) Atom, oval, nval) != oval);
3465 return gcvSTATUS_OK;
3469 /*******************************************************************************
3471 ** gckOS_AtomConstruct
3478 ** Pointer to a gckOS object.
3482 ** gctPOINTER * Atom
3483 ** Pointer to a variable receiving the constructed atom.
3486 gckOS_AtomConstruct(
3488 OUT gctPOINTER * Atom
3493 gcmkHEADER_ARG("Os=0x%X", Os);
3495 /* Verify the arguments. */
3496 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
3497 gcmkVERIFY_ARGUMENT(Atom != gcvNULL);
3499 /* Allocate the atom. */
3500 gcmkONERROR(gckOS_Allocate(Os, gcmSIZEOF(atomic_t), Atom));
3502 /* Initialize the atom. */
3503 atomic_set((atomic_t *) *Atom, 0);
3506 gcmkFOOTER_ARG("*Atom=0x%X", *Atom);
3507 return gcvSTATUS_OK;
3510 /* Return the status. */
3515 /*******************************************************************************
3517 ** gckOS_AtomDestroy
3524 ** Pointer to a gckOS object.
3527 ** Pointer to the atom to destroy.
3541 gcmkHEADER_ARG("Os=0x%X Atom=0x%0x", Os, Atom);
3543 /* Verify the arguments. */
3544 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
3545 gcmkVERIFY_ARGUMENT(Atom != gcvNULL);
3547 /* Free the atom. */
3548 gcmkONERROR(gcmkOS_SAFE_FREE(Os, Atom));
3552 return gcvSTATUS_OK;
3555 /* Return the status. */
3560 /*******************************************************************************
3564 ** Get the 32-bit value protected by an atom.
3569 ** Pointer to a gckOS object.
3572 ** Pointer to the atom.
3576 ** gctINT32_PTR Value
3577 ** Pointer to a variable the receives the value of the atom.
3583 OUT gctINT32_PTR Value
3586 gcmkHEADER_ARG("Os=0x%X Atom=0x%0x", Os, Atom);
3588 /* Verify the arguments. */
3589 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
3590 gcmkVERIFY_ARGUMENT(Atom != gcvNULL);
3592 /* Return the current value of atom. */
3593 *Value = atomic_read((atomic_t *) Atom);
3596 gcmkFOOTER_ARG("*Value=%d", *Value);
3597 return gcvSTATUS_OK;
3600 /*******************************************************************************
3604 ** Set the 32-bit value protected by an atom.
3609 ** Pointer to a gckOS object.
3612 ** Pointer to the atom.
3615 ** The value of the atom.
3628 gcmkHEADER_ARG("Os=0x%X Atom=0x%0x Value=%d", Os, Atom);
3630 /* Verify the arguments. */
3631 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
3632 gcmkVERIFY_ARGUMENT(Atom != gcvNULL);
3634 /* Set the current value of atom. */
3635 atomic_set((atomic_t *) Atom, Value);
3639 return gcvSTATUS_OK;
3642 /*******************************************************************************
3644 ** gckOS_AtomIncrement
3646 ** Atomically increment the 32-bit integer value inside an atom.
3651 ** Pointer to a gckOS object.
3654 ** Pointer to the atom.
3658 ** gctINT32_PTR Value
3659 ** Pointer to a variable that receives the original value of the atom.
3662 gckOS_AtomIncrement(
3665 OUT gctINT32_PTR Value
3668 gcmkHEADER_ARG("Os=0x%X Atom=0x%0x", Os, Atom);
3670 /* Verify the arguments. */
3671 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
3672 gcmkVERIFY_ARGUMENT(Atom != gcvNULL);
3674 /* Increment the atom. */
3675 *Value = atomic_inc_return((atomic_t *) Atom) - 1;
3678 gcmkFOOTER_ARG("*Value=%d", *Value);
3679 return gcvSTATUS_OK;
3682 /*******************************************************************************
3684 ** gckOS_AtomDecrement
3686 ** Atomically decrement the 32-bit integer value inside an atom.
3691 ** Pointer to a gckOS object.
3694 ** Pointer to the atom.
3698 ** gctINT32_PTR Value
3699 ** Pointer to a variable that receives the original value of the atom.
3702 gckOS_AtomDecrement(
3705 OUT gctINT32_PTR Value
3708 gcmkHEADER_ARG("Os=0x%X Atom=0x%0x", Os, Atom);
3710 /* Verify the arguments. */
3711 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
3712 gcmkVERIFY_ARGUMENT(Atom != gcvNULL);
3714 /* Decrement the atom. */
3715 *Value = atomic_dec_return((atomic_t *) Atom) + 1;
3718 gcmkFOOTER_ARG("*Value=%d", *Value);
3719 return gcvSTATUS_OK;
3722 /*******************************************************************************
3726 ** Delay execution of the current thread for a number of milliseconds.
3731 ** Pointer to an gckOS object.
3734 ** Delay to sleep, specified in milliseconds.
3746 gcmkHEADER_ARG("Os=0x%X Delay=%u", Os, Delay);
3750 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
3751 ktime_t delay = ktime_set(Delay/1000, (Delay%1000) * NSEC_PER_MSEC);
3752 __set_current_state(TASK_UNINTERRUPTIBLE);
3753 schedule_hrtimeout(&delay, HRTIMER_MODE_REL);
3762 return gcvSTATUS_OK;
3765 /*******************************************************************************
3769 ** Get the number of milliseconds since the system started.
3775 ** gctUINT32_PTR Time
3776 ** Pointer to a variable to get time.
3781 OUT gctUINT32_PTR Time
3786 *Time = jiffies_to_msecs(jiffies);
3789 return gcvSTATUS_OK;
3792 /*******************************************************************************
3796 ** Compare time values got from gckOS_GetTicks.
3800 ** First time value to be compared.
3803 ** Second time value to be compared.
3807 ** gctBOOL_PTR IsAfter
3808 ** Pointer to a variable to result.
3815 OUT gctBOOL_PTR IsAfter
3820 *IsAfter = time_after((unsigned long)Time1, (unsigned long)Time2);
3823 return gcvSTATUS_OK;
3826 /*******************************************************************************
3830 ** Get the number of microseconds since the system started.
3836 ** gctUINT64_PTR Time
3837 ** Pointer to a variable to get time.
3842 OUT gctUINT64_PTR Time
3850 return gcvSTATUS_OK;
3853 /*******************************************************************************
3855 ** gckOS_MemoryBarrier
3857 ** Make sure the CPU has executed everything up to this point and the data got
3858 ** written to the specified pointer.
3863 ** Pointer to an gckOS object.
3865 ** gctPOINTER Address
3866 ** Address of memory that needs to be barriered.
3873 gckOS_MemoryBarrier(
3875 IN gctPOINTER Address
3878 gcmkHEADER_ARG("Os=0x%X Address=0x%X", Os, Address);
3880 /* Verify the arguments. */
3881 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
3883 #if gcdNONPAGED_MEMORY_BUFFERABLE \
3884 && defined (CONFIG_ARM) \
3885 && (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,34))
3886 /* drain write buffer */
3889 /* drain outer cache's write buffer? */
3896 return gcvSTATUS_OK;
3899 /*******************************************************************************
3901 ** gckOS_AllocatePagedMemory
3903 ** Allocate memory from the paged pool.
3908 ** Pointer to an gckOS object.
3911 ** Number of bytes to allocate.
3915 ** gctPHYS_ADDR * Physical
3916 ** Pointer to a variable that receives the physical address of the
3917 ** memory allocation.
3920 gckOS_AllocatePagedMemory(
3923 OUT gctPHYS_ADDR * Physical
3928 gcmkHEADER_ARG("Os=0x%X Bytes=%lu", Os, Bytes);
3930 /* Verify the arguments. */
3931 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
3932 gcmkVERIFY_ARGUMENT(Bytes > 0);
3933 gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
3935 /* Allocate the memory. */
3936 gcmkONERROR(gckOS_AllocatePagedMemoryEx(Os, gcvFALSE, Bytes, Physical));
3939 gcmkFOOTER_ARG("*Physical=0x%X", *Physical);
3940 return gcvSTATUS_OK;
3943 /* Return the status. */
3948 /*******************************************************************************
3950 ** gckOS_AllocatePagedMemoryEx
3952 ** Allocate memory from the paged pool.
3957 ** Pointer to an gckOS object.
3959 ** gctBOOL Contiguous
3960 ** Need contiguous memory or not.
3963 ** Number of bytes to allocate.
3967 ** gctPHYS_ADDR * Physical
3968 ** Pointer to a variable that receives the physical address of the
3969 ** memory allocation.
3972 gckOS_AllocatePagedMemoryEx(
3974 IN gctBOOL Contiguous,
3976 OUT gctPHYS_ADDR * Physical
3981 PLINUX_MDL mdl = gcvNULL;
3983 gctBOOL locked = gcvFALSE;
3985 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
3986 gctPOINTER addr = gcvNULL;
3989 gcmkHEADER_ARG("Os=0x%X Contiguous=%d Bytes=%lu", Os, Contiguous, Bytes);
3991 /* Verify the arguments. */
3992 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
3993 gcmkVERIFY_ARGUMENT(Bytes > 0);
3994 gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
3996 bytes = gcmALIGN(Bytes, PAGE_SIZE);
3998 numPages = GetPageCount(bytes, 0);
4003 mdl = _CreateMdl(_GetProcessID());
4006 gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
4011 gctUINT32 order = get_order(bytes);
4013 if (order >= MAX_ORDER)
4015 gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
4018 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
4020 alloc_pages_exact(numPages * PAGE_SIZE, GFP_KERNEL | gcdNOWARN | __GFP_NORETRY);
4022 mdl->u.contiguousPages = addr
4023 ? virt_to_page(addr)
4026 mdl->exact = gcvTRUE;
4028 mdl->u.contiguousPages =
4029 alloc_pages(GFP_KERNEL | gcdNOWARN | __GFP_NORETRY, order);
4031 if (mdl->u.contiguousPages == gcvNULL)
4033 mdl->u.contiguousPages =
4034 alloc_pages(GFP_KERNEL | __GFP_HIGHMEM | gcdNOWARN, order);
4036 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
4037 mdl->exact = gcvFALSE;
4043 mdl->u.nonContiguousPages = _NonContiguousAlloc(numPages);
4046 if (mdl->u.contiguousPages == gcvNULL && mdl->u.nonContiguousPages == gcvNULL)
4048 gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
4053 mdl->numPages = numPages;
4055 mdl->contiguous = Contiguous;
4057 for (i = 0; i < mdl->numPages; i++)
4061 if (mdl->contiguous)
4063 page = nth_page(mdl->u.contiguousPages, i);
4067 page = _NonContiguousToPage(mdl->u.nonContiguousPages, i);
4070 SetPageReserved(page);
4072 if (!PageHighMem(page) && page_to_phys(page))
4075 gckOS_CacheFlush(Os, _GetProcessID(), gcvNULL,
4076 (gctPOINTER)(gctUINTPTR_T)page_to_phys(page),
4082 /* Return physical address. */
4083 *Physical = (gctPHYS_ADDR) mdl;
4086 * Add this to a global list.
4087 * Will be used by get physical address
4088 * and mapuser pointer functions.
4092 /* Initialize the queue. */
4093 Os->mdlHead = Os->mdlTail = mdl;
4098 mdl->prev = Os->mdlTail;
4099 Os->mdlTail->next = mdl;
4106 gcmkFOOTER_ARG("*Physical=0x%X", *Physical);
4107 return gcvSTATUS_OK;
4112 /* Free the memory. */
4118 /* Unlock the memory. */
4122 /* Return the status. */
4127 /*******************************************************************************
4129 ** gckOS_FreePagedMemory
4131 ** Free memory allocated from the paged pool.
4136 ** Pointer to an gckOS object.
4138 ** gctPHYS_ADDR Physical
4139 ** Physical address of the allocation.
4142 ** Number of bytes of the allocation.
4149 gckOS_FreePagedMemory(
4151 IN gctPHYS_ADDR Physical,
4155 PLINUX_MDL mdl = (PLINUX_MDL) Physical;
4158 gcmkHEADER_ARG("Os=0x%X Physical=0x%X Bytes=%lu", Os, Physical, Bytes);
4160 /* Verify the arguments. */
4161 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
4162 gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
4163 gcmkVERIFY_ARGUMENT(Bytes > 0);
4165 /*addr = mdl->addr;*/
4169 for (i = 0; i < mdl->numPages; i++)
4171 if (mdl->contiguous)
4173 ClearPageReserved(nth_page(mdl->u.contiguousPages, i));
4177 ClearPageReserved(_NonContiguousToPage(mdl->u.nonContiguousPages, i));
4181 if (mdl->contiguous)
4183 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
4184 if (mdl->exact == gcvTRUE)
4186 free_pages_exact(page_address(mdl->u.contiguousPages), mdl->numPages * PAGE_SIZE);
4191 __free_pages(mdl->u.contiguousPages, GetOrder(mdl->numPages));
4196 _NonContiguousFree(mdl->u.nonContiguousPages, mdl->numPages);
4199 /* Remove the node from global list. */
4200 if (mdl == Os->mdlHead)
4202 if ((Os->mdlHead = mdl->next) == gcvNULL)
4204 Os->mdlTail = gcvNULL;
4209 mdl->prev->next = mdl->next;
4211 if (mdl == Os->mdlTail)
4213 Os->mdlTail = mdl->prev;
4217 mdl->next->prev = mdl->prev;
4223 /* Free the structure... */
4224 gcmkVERIFY_OK(_DestroyMdl(mdl));
4228 return gcvSTATUS_OK;
4231 /*******************************************************************************
4235 ** Lock memory allocated from the paged pool.
4240 ** Pointer to an gckOS object.
4242 ** gctPHYS_ADDR Physical
4243 ** Physical address of the allocation.
4246 ** Number of bytes of the allocation.
4248 ** gctBOOL Cacheable
4249 ** Cache mode of mapping.
4253 ** gctPOINTER * Logical
4254 ** Pointer to a variable that receives the address of the mapped
4257 ** gctSIZE_T * PageCount
4258 ** Pointer to a variable that receives the number of pages required for
4259 ** the page table according to the GPU page size.
4264 IN gctPHYS_ADDR Physical,
4266 IN gctBOOL Cacheable,
4267 OUT gctPOINTER * Logical,
4268 OUT gctSIZE_T * PageCount
4272 PLINUX_MDL_MAP mdlMap;
4274 unsigned long start;
4278 gcmkHEADER_ARG("Os=0x%X Physical=0x%X Bytes=%lu", Os, Physical, Logical);
4280 /* Verify the arguments. */
4281 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
4282 gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
4283 gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
4284 gcmkVERIFY_ARGUMENT(PageCount != gcvNULL);
4286 mdl = (PLINUX_MDL) Physical;
4290 mdlMap = FindMdlMap(mdl, _GetProcessID());
4292 if (mdlMap == gcvNULL)
4294 mdlMap = _CreateMdlMap(mdl, _GetProcessID());
4296 if (mdlMap == gcvNULL)
4300 gcmkFOOTER_ARG("*status=%d", gcvSTATUS_OUT_OF_MEMORY);
4301 return gcvSTATUS_OUT_OF_MEMORY;
4305 if (mdlMap->vmaAddr == gcvNULL)
4307 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0)
4308 mdlMap->vmaAddr = (gctSTRING)vm_mmap(gcvNULL,
4310 mdl->numPages * PAGE_SIZE,
4311 PROT_READ | PROT_WRITE,
4315 down_write(¤t->mm->mmap_sem);
4317 mdlMap->vmaAddr = (gctSTRING)do_mmap_pgoff(gcvNULL,
4319 mdl->numPages * PAGE_SIZE,
4320 PROT_READ | PROT_WRITE,
4324 up_write(¤t->mm->mmap_sem);
4328 gcvLEVEL_INFO, gcvZONE_OS,
4329 "%s(%d): vmaAddr->0x%X for phys_addr->0x%X",
4330 __FUNCTION__, __LINE__,
4331 (gctUINT32)(gctUINTPTR_T)mdlMap->vmaAddr,
4332 (gctUINT32)(gctUINTPTR_T)mdl
4335 if (IS_ERR(mdlMap->vmaAddr))
4338 gcvLEVEL_INFO, gcvZONE_OS,
4339 "%s(%d): do_mmap_pgoff error",
4340 __FUNCTION__, __LINE__
4343 mdlMap->vmaAddr = gcvNULL;
4347 gcmkFOOTER_ARG("*status=%d", gcvSTATUS_OUT_OF_MEMORY);
4348 return gcvSTATUS_OUT_OF_MEMORY;
4351 down_write(¤t->mm->mmap_sem);
4353 mdlMap->vma = find_vma(current->mm, (unsigned long)mdlMap->vmaAddr);
4355 if (mdlMap->vma == gcvNULL)
4357 up_write(¤t->mm->mmap_sem);
4360 gcvLEVEL_INFO, gcvZONE_OS,
4361 "%s(%d): find_vma error",
4362 __FUNCTION__, __LINE__
4365 mdlMap->vmaAddr = gcvNULL;
4369 gcmkFOOTER_ARG("*status=%d", gcvSTATUS_OUT_OF_RESOURCES);
4370 return gcvSTATUS_OUT_OF_RESOURCES;
4373 mdlMap->vma->vm_flags |= gcdVM_FLAGS;
4375 if (Cacheable == gcvFALSE)
4377 /* Make this mapping non-cached. */
4378 mdlMap->vma->vm_page_prot = gcmkPAGED_MEMROY_PROT(mdlMap->vma->vm_page_prot);
4383 /* Now map all the vmalloc pages to this user address. */
4384 if (mdl->contiguous)
4386 /* map kernel memory to user space.. */
4387 if (remap_pfn_range(mdlMap->vma,
4388 mdlMap->vma->vm_start,
4389 page_to_pfn(mdl->u.contiguousPages),
4390 mdlMap->vma->vm_end - mdlMap->vma->vm_start,
4391 mdlMap->vma->vm_page_prot) < 0)
4393 up_write(¤t->mm->mmap_sem);
4396 gcvLEVEL_INFO, gcvZONE_OS,
4397 "%s(%d): unable to mmap ret",
4398 __FUNCTION__, __LINE__
4401 mdlMap->vmaAddr = gcvNULL;
4405 gcmkFOOTER_ARG("*status=%d", gcvSTATUS_OUT_OF_MEMORY);
4406 return gcvSTATUS_OUT_OF_MEMORY;
4411 start = mdlMap->vma->vm_start;
4413 for (i = 0; i < mdl->numPages; i++)
4415 pfn = _NonContiguousToPfn(mdl->u.nonContiguousPages, i);
4417 if (remap_pfn_range(mdlMap->vma,
4421 mdlMap->vma->vm_page_prot) < 0)
4423 up_write(¤t->mm->mmap_sem);
4426 gcvLEVEL_INFO, gcvZONE_OS,
4427 "%s(%d): gctPHYS_ADDR->0x%X Logical->0x%X Unable to map addr->0x%X to start->0x%X",
4428 __FUNCTION__, __LINE__,
4429 (gctUINT32)(gctUINTPTR_T)Physical,
4430 (gctUINT32)(gctUINTPTR_T)*Logical,
4431 (gctUINT32)(gctUINTPTR_T)addr,
4432 (gctUINT32)(gctUINTPTR_T)start
4435 mdlMap->vmaAddr = gcvNULL;
4439 gcmkFOOTER_ARG("*status=%d", gcvSTATUS_OUT_OF_MEMORY);
4440 return gcvSTATUS_OUT_OF_MEMORY;
4448 up_write(¤t->mm->mmap_sem);
4453 /* Convert pointer to MDL. */
4454 *Logical = mdlMap->vmaAddr;
4456 /* Return the page number according to the GPU page size. */
4457 gcmkASSERT((PAGE_SIZE % 4096) == 0);
4458 gcmkASSERT((PAGE_SIZE / 4096) >= 1);
4460 *PageCount = mdl->numPages * (PAGE_SIZE / 4096);
4464 gcmkVERIFY_OK(gckOS_CacheFlush(
4469 (gctPOINTER)mdlMap->vmaAddr,
4470 mdl->numPages * PAGE_SIZE
4474 gcmkFOOTER_ARG("*Logical=0x%X *PageCount=%lu", *Logical, *PageCount);
4475 return gcvSTATUS_OK;
4478 /*******************************************************************************
4482 ** Map paged memory into a page table.
4487 ** Pointer to an gckOS object.
4489 ** gctPHYS_ADDR Physical
4490 ** Physical address of the allocation.
4492 ** gctSIZE_T PageCount
4493 ** Number of pages required for the physical address.
4495 ** gctPOINTER PageTable
4496 ** Pointer to the page table to fill in.
4505 IN gctPHYS_ADDR Physical,
4506 IN gctSIZE_T PageCount,
4507 IN gctPOINTER PageTable
4510 return gckOS_MapPagesEx(Os,
4521 IN gctPHYS_ADDR Physical,
4522 IN gctSIZE_T PageCount,
4523 IN gctPOINTER PageTable
4526 gceSTATUS status = gcvSTATUS_OK;
4530 #if gcdNONPAGED_MEMORY_CACHEABLE
4534 gctPHYS_ADDR pageTablePhysical;
4537 gcmkHEADER_ARG("Os=0x%X Core=%d Physical=0x%X PageCount=%u PageTable=0x%X",
4538 Os, Core, Physical, PageCount, PageTable);
4540 /* Verify the arguments. */
4541 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
4542 gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
4543 gcmkVERIFY_ARGUMENT(PageCount > 0);
4544 gcmkVERIFY_ARGUMENT(PageTable != gcvNULL);
4546 /* Convert pointer to MDL. */
4547 mdl = (PLINUX_MDL)Physical;
4550 gcvLEVEL_INFO, gcvZONE_OS,
4551 "%s(%d): Physical->0x%X PageCount->0x%X PagedMemory->?%d",
4552 __FUNCTION__, __LINE__,
4553 (gctUINT32)(gctUINTPTR_T)Physical,
4554 (gctUINT32)(gctUINTPTR_T)PageCount,
4560 table = (gctUINT32 *)PageTable;
4561 #if gcdNONPAGED_MEMORY_CACHEABLE
4562 mmu = Os->device->kernels[Core]->mmu;
4563 bytes = PageCount * sizeof(*table);
4564 mmuMdl = (PLINUX_MDL)mmu->pageTablePhysical;
4567 /* Get all the physical addresses and store them in the page table. */
4573 /* Try to get the user pages so DMA can happen. */
4574 while (PageCount-- > 0)
4577 if (Core == gcvCORE_VG)
4579 if (mdl->contiguous)
4582 gckVGMMU_SetPage(Os->device->kernels[Core]->vg->mmu,
4583 page_to_phys(nth_page(mdl->u.contiguousPages, offset)),
4589 gckVGMMU_SetPage(Os->device->kernels[Core]->vg->mmu,
4590 _NonContiguousToPhys(mdl->u.nonContiguousPages, offset),
4597 if (mdl->contiguous)
4600 gckMMU_SetPage(Os->device->kernels[Core]->mmu,
4601 page_to_phys(nth_page(mdl->u.contiguousPages, offset)),
4607 gckMMU_SetPage(Os->device->kernels[Core]->mmu,
4608 _NonContiguousToPhys(mdl->u.nonContiguousPages, offset),
4620 gcvLEVEL_INFO, gcvZONE_OS,
4621 "%s(%d): we should not get this call for Non Paged Memory!",
4622 __FUNCTION__, __LINE__
4625 while (PageCount-- > 0)
4628 if (Core == gcvCORE_VG)
4631 gckVGMMU_SetPage(Os->device->kernels[Core]->vg->mmu,
4632 page_to_phys(nth_page(mdl->u.contiguousPages, offset)),
4639 gckMMU_SetPage(Os->device->kernels[Core]->mmu,
4640 page_to_phys(nth_page(mdl->u.contiguousPages, offset)),
4648 #if gcdNONPAGED_MEMORY_CACHEABLE
4649 /* Get physical address of pageTable */
4650 pageTablePhysical = (gctPHYS_ADDR)(mmuMdl->dmaHandle +
4651 ((gctUINT32 *)PageTable - mmu->pageTableLogical));
4653 /* Flush the mmu page table cache. */
4654 gcmkONERROR(gckOS_CacheClean(
4668 /* Return the status. */
4673 /*******************************************************************************
4675 ** gckOS_UnlockPages
4677 ** Unlock memory allocated from the paged pool.
4682 ** Pointer to an gckOS object.
4684 ** gctPHYS_ADDR Physical
4685 ** Physical address of the allocation.
4688 ** Number of bytes of the allocation.
4690 ** gctPOINTER Logical
4691 ** Address of the mapped memory.
4700 IN gctPHYS_ADDR Physical,
4702 IN gctPOINTER Logical
4705 PLINUX_MDL_MAP mdlMap;
4706 PLINUX_MDL mdl = (PLINUX_MDL)Physical;
4708 gcmkHEADER_ARG("Os=0x%X Physical=0x%X Bytes=%u Logical=0x%X",
4709 Os, Physical, Bytes, Logical);
4711 /* Verify the arguments. */
4712 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
4713 gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
4714 gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
4716 /* Make sure there is already a mapping...*/
4717 gcmkVERIFY_ARGUMENT(mdl->u.nonContiguousPages != gcvNULL
4718 || mdl->u.contiguousPages != gcvNULL);
4724 while (mdlMap != gcvNULL)
4726 if ((mdlMap->vmaAddr != gcvNULL) && (_GetProcessID() == mdlMap->pid))
4728 if (--mdlMap->count == 0)
4730 _UnmapUserLogical(mdlMap->pid, mdlMap->vmaAddr, mdl->numPages * PAGE_SIZE);
4731 mdlMap->vmaAddr = gcvNULL;
4735 mdlMap = mdlMap->next;
4742 return gcvSTATUS_OK;
4746 /*******************************************************************************
4748 ** gckOS_AllocateContiguous
4750 ** Allocate memory from the contiguous pool.
4755 ** Pointer to an gckOS object.
4757 ** gctBOOL InUserSpace
4758 ** gcvTRUE if the pages need to be mapped into user space.
4760 ** gctSIZE_T * Bytes
4761 ** Pointer to the number of bytes to allocate.
4765 ** gctSIZE_T * Bytes
4766 ** Pointer to a variable that receives the number of bytes allocated.
4768 ** gctPHYS_ADDR * Physical
4769 ** Pointer to a variable that receives the physical address of the
4770 ** memory allocation.
4772 ** gctPOINTER * Logical
4773 ** Pointer to a variable that receives the logical address of the
4774 ** memory allocation.
4777 gckOS_AllocateContiguous(
4779 IN gctBOOL InUserSpace,
4780 IN OUT gctSIZE_T * Bytes,
4781 OUT gctPHYS_ADDR * Physical,
4782 OUT gctPOINTER * Logical
4787 gcmkHEADER_ARG("Os=0x%X InUserSpace=%d *Bytes=%lu",
4788 Os, InUserSpace, gcmOPT_VALUE(Bytes));
4790 /* Verify the arguments. */
4791 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
4792 gcmkVERIFY_ARGUMENT(Bytes != gcvNULL);
4793 gcmkVERIFY_ARGUMENT(*Bytes > 0);
4794 gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
4795 gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
4797 /* Same as non-paged memory for now. */
4798 gcmkONERROR(gckOS_AllocateNonPagedMemory(Os,
4805 gcmkFOOTER_ARG("*Bytes=%lu *Physical=0x%X *Logical=0x%X",
4806 *Bytes, *Physical, *Logical);
4807 return gcvSTATUS_OK;
4810 /* Return the status. */
4815 /*******************************************************************************
4817 ** gckOS_FreeContiguous
4819 ** Free memory allocated from the contiguous pool.
4824 ** Pointer to an gckOS object.
4826 ** gctPHYS_ADDR Physical
4827 ** Physical address of the allocation.
4829 ** gctPOINTER Logical
4830 ** Logicval address of the allocation.
4833 ** Number of bytes of the allocation.
4840 gckOS_FreeContiguous(
4842 IN gctPHYS_ADDR Physical,
4843 IN gctPOINTER Logical,
4849 gcmkHEADER_ARG("Os=0x%X Physical=0x%X Logical=0x%X Bytes=%lu",
4850 Os, Physical, Logical, Bytes);
4852 /* Verify the arguments. */
4853 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
4854 gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
4855 gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
4856 gcmkVERIFY_ARGUMENT(Bytes > 0);
4858 /* Same of non-paged memory for now. */
4859 gcmkONERROR(gckOS_FreeNonPagedMemory(Os, Bytes, Physical, Logical));
4863 return gcvSTATUS_OK;
4866 /* Return the status. */
4872 /******************************************************************************
4874 ** gckOS_GetKernelLogical
4876 ** Return the kernel logical pointer that corresponods to the specified
4877 ** hardware address.
4882 ** Pointer to an gckOS object.
4884 ** gctUINT32 Address
4885 ** Hardware physical address.
4889 ** gctPOINTER * KernelPointer
4890 ** Pointer to a variable receiving the pointer in kernel address space.
4893 gckOS_GetKernelLogical(
4895 IN gctUINT32 Address,
4896 OUT gctPOINTER * KernelPointer
4899 return gckOS_GetKernelLogicalEx(Os, gcvCORE_MAJOR, Address, KernelPointer);
4903 gckOS_GetKernelLogicalEx(
4906 IN gctUINT32 Address,
4907 OUT gctPOINTER * KernelPointer
4912 gcmkHEADER_ARG("Os=0x%X Core=%d Address=0x%08x", Os, Core, Address);
4916 gckGALDEVICE device;
4922 /* Extract the pointer to the gckGALDEVICE class. */
4923 device = (gckGALDEVICE) Os->device;
4925 /* Kernel shortcut. */
4926 kernel = device->kernels[Core];
4928 if (Core == gcvCORE_VG)
4930 gcmkERR_BREAK(gckVGHARDWARE_SplitMemory(
4931 kernel->vg->hardware, Address, &pool, &offset
4937 /* Split the memory address into a pool type and offset. */
4938 gcmkERR_BREAK(gckHARDWARE_SplitMemory(
4939 kernel->hardware, Address, &pool, &offset
4943 /* Dispatch on pool. */
4946 case gcvPOOL_LOCAL_INTERNAL:
4947 /* Internal memory. */
4948 logical = device->internalLogical;
4951 case gcvPOOL_LOCAL_EXTERNAL:
4952 /* External memory. */
4953 logical = device->externalLogical;
4956 case gcvPOOL_SYSTEM:
4957 /* System memory. */
4958 logical = device->contiguousBase;
4962 /* Invalid memory pool. */
4964 return gcvSTATUS_INVALID_ARGUMENT;
4967 /* Build logical address of specified address. */
4968 * KernelPointer = ((gctUINT8_PTR) logical) + offset;
4971 gcmkFOOTER_ARG("*KernelPointer=0x%X", *KernelPointer);
4972 return gcvSTATUS_OK;
4976 /* Return status. */
4982 /*******************************************************************************
4984 ** gckOS_MapUserPointer
4986 ** Map a pointer from the user process into the kernel address space.
4991 ** Pointer to an gckOS object.
4993 ** gctPOINTER Pointer
4994 ** Pointer in user process space that needs to be mapped.
4997 ** Number of bytes that need to be mapped.
5001 ** gctPOINTER * KernelPointer
5002 ** Pointer to a variable receiving the mapped pointer in kernel address
5006 gckOS_MapUserPointer(
5008 IN gctPOINTER Pointer,
5010 OUT gctPOINTER * KernelPointer
5013 gctPOINTER buf = gcvNULL;
5016 gcmkHEADER_ARG("Os=0x%X Pointer=0x%X Size=%lu", Os, Pointer, Size);
5018 /* Verify the arguments. */
5019 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
5020 gcmkVERIFY_ARGUMENT(Pointer != gcvNULL);
5021 gcmkVERIFY_ARGUMENT(Size > 0);
5022 gcmkVERIFY_ARGUMENT(KernelPointer != gcvNULL);
5024 buf = kmalloc(Size, GFP_KERNEL | gcdNOWARN);
5029 "%s(%d): Failed to allocate memory.",
5030 __FUNCTION__, __LINE__
5033 gcmkFOOTER_ARG("*status=%d", gcvSTATUS_OUT_OF_MEMORY);
5034 return gcvSTATUS_OUT_OF_MEMORY;
5037 len = copy_from_user(buf, Pointer, Size);
5042 "%s(%d): Failed to copy data from user.",
5043 __FUNCTION__, __LINE__
5051 gcmkFOOTER_ARG("*status=%d", gcvSTATUS_GENERIC_IO);
5052 return gcvSTATUS_GENERIC_IO;
5055 *KernelPointer = buf;
5057 gcmkFOOTER_ARG("*KernelPointer=0x%X", *KernelPointer);
5058 return gcvSTATUS_OK;
5061 /*******************************************************************************
5063 ** gckOS_UnmapUserPointer
5065 ** Unmap a user process pointer from the kernel address space.
5070 ** Pointer to an gckOS object.
5072 ** gctPOINTER Pointer
5073 ** Pointer in user process space that needs to be unmapped.
5076 ** Number of bytes that need to be unmapped.
5078 ** gctPOINTER KernelPointer
5079 ** Pointer in kernel address space that needs to be unmapped.
5086 gckOS_UnmapUserPointer(
5088 IN gctPOINTER Pointer,
5090 IN gctPOINTER KernelPointer
5095 gcmkHEADER_ARG("Os=0x%X Pointer=0x%X Size=%lu KernelPointer=0x%X",
5096 Os, Pointer, Size, KernelPointer);
5099 /* Verify the arguments. */
5100 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
5101 gcmkVERIFY_ARGUMENT(Pointer != gcvNULL);
5102 gcmkVERIFY_ARGUMENT(Size > 0);
5103 gcmkVERIFY_ARGUMENT(KernelPointer != gcvNULL);
5105 len = copy_to_user(Pointer, KernelPointer, Size);
5107 kfree(KernelPointer);
5113 "%s(%d): Failed to copy data to user.",
5114 __FUNCTION__, __LINE__
5117 gcmkFOOTER_ARG("status=%d", gcvSTATUS_GENERIC_IO);
5118 return gcvSTATUS_GENERIC_IO;
5122 return gcvSTATUS_OK;
5125 /*******************************************************************************
5127 ** gckOS_QueryNeedCopy
5129 ** Query whether the memory can be accessed or mapped directly or it has to be
5135 ** Pointer to an gckOS object.
5137 ** gctUINT32 ProcessID
5138 ** Process ID of the current process.
5142 ** gctBOOL_PTR NeedCopy
5143 ** Pointer to a boolean receiving gcvTRUE if the memory needs a copy or
5144 ** gcvFALSE if the memory can be accessed or mapped dircetly.
5147 gckOS_QueryNeedCopy(
5149 IN gctUINT32 ProcessID,
5150 OUT gctBOOL_PTR NeedCopy
5153 gcmkHEADER_ARG("Os=0x%X ProcessID=%d", Os, ProcessID);
5155 /* Verify the arguments. */
5156 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
5157 gcmkVERIFY_ARGUMENT(NeedCopy != gcvNULL);
5159 /* We need to copy data. */
5160 *NeedCopy = gcvTRUE;
5163 gcmkFOOTER_ARG("*NeedCopy=%d", *NeedCopy);
5164 return gcvSTATUS_OK;
5167 /*******************************************************************************
5169 ** gckOS_CopyFromUserData
5171 ** Copy data from user to kernel memory.
5176 ** Pointer to an gckOS object.
5178 ** gctPOINTER KernelPointer
5179 ** Pointer to kernel memory.
5181 ** gctPOINTER Pointer
5182 ** Pointer to user memory.
5185 ** Number of bytes to copy.
5192 gckOS_CopyFromUserData(
5194 IN gctPOINTER KernelPointer,
5195 IN gctPOINTER Pointer,
5201 gcmkHEADER_ARG("Os=0x%X KernelPointer=0x%X Pointer=0x%X Size=%lu",
5202 Os, KernelPointer, Pointer, Size);
5204 /* Verify the arguments. */
5205 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
5206 gcmkVERIFY_ARGUMENT(KernelPointer != gcvNULL);
5207 gcmkVERIFY_ARGUMENT(Pointer != gcvNULL);
5208 gcmkVERIFY_ARGUMENT(Size > 0);
5210 /* Copy data from user. */
5211 if (copy_from_user(KernelPointer, Pointer, Size) != 0)
5213 /* Could not copy all the bytes. */
5214 gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
5219 return gcvSTATUS_OK;
5222 /* Return the status. */
5227 /*******************************************************************************
5229 ** gckOS_CopyToUserData
5231 ** Copy data from kernel to user memory.
5236 ** Pointer to an gckOS object.
5238 ** gctPOINTER KernelPointer
5239 ** Pointer to kernel memory.
5241 ** gctPOINTER Pointer
5242 ** Pointer to user memory.
5245 ** Number of bytes to copy.
5252 gckOS_CopyToUserData(
5254 IN gctPOINTER KernelPointer,
5255 IN gctPOINTER Pointer,
5261 gcmkHEADER_ARG("Os=0x%X KernelPointer=0x%X Pointer=0x%X Size=%lu",
5262 Os, KernelPointer, Pointer, Size);
5264 /* Verify the arguments. */
5265 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
5266 gcmkVERIFY_ARGUMENT(KernelPointer != gcvNULL);
5267 gcmkVERIFY_ARGUMENT(Pointer != gcvNULL);
5268 gcmkVERIFY_ARGUMENT(Size > 0);
5270 /* Copy data to user. */
5271 if (copy_to_user(Pointer, KernelPointer, Size) != 0)
5273 /* Could not copy all the bytes. */
5274 gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
5279 return gcvSTATUS_OK;
5282 /* Return the status. */
5287 /*******************************************************************************
5289 ** gckOS_WriteMemory
5291 ** Write data to a memory.
5296 ** Pointer to an gckOS object.
5298 ** gctPOINTER Address
5299 ** Address of the memory to write to.
5302 ** Data for register.
5311 IN gctPOINTER Address,
5316 gcmkHEADER_ARG("Os=0x%X Address=0x%X Data=%u", Os, Address, Data);
5318 /* Verify the arguments. */
5319 gcmkVERIFY_ARGUMENT(Address != gcvNULL);
5322 if (access_ok(VERIFY_WRITE, Address, 4))
5325 if(put_user(Data, (gctUINT32*)Address))
5327 gcmkONERROR(gcvSTATUS_INVALID_ADDRESS);
5332 /* Kernel address. */
5333 *(gctUINT32 *)Address = Data;
5338 return gcvSTATUS_OK;
5345 /*******************************************************************************
5347 ** gckOS_MapUserMemory
5349 ** Lock down a user buffer and return an DMA'able address to be used by the
5350 ** hardware to access it.
5354 ** gctPOINTER Memory
5355 ** Pointer to memory to lock down.
5358 ** Size in bytes of the memory to lock down.
5362 ** gctPOINTER * Info
5363 ** Pointer to variable receiving the information record required by
5364 ** gckOS_UnmapUserMemory.
5366 ** gctUINT32_PTR Address
5367 ** Pointer to a variable that will receive the address DMA'able by the
5371 gckOS_MapUserMemory(
5374 IN gctPOINTER Memory,
5375 IN gctUINT32 Physical,
5377 OUT gctPOINTER * Info,
5378 OUT gctUINT32_PTR Address
5383 gcmkHEADER_ARG("Os=0x%x Core=%d Memory=0x%x Size=%lu", Os, Core, Memory, Size);
5386 gcmkONERROR(gckOS_AddMapping(Os, *Address, Memory, Size));
5389 return gcvSTATUS_OK;
5396 gctSIZE_T pageCount, i, j;
5397 gctUINT32_PTR pageTable;
5398 gctUINT32 address = 0, physical = ~0U;
5399 gctUINTPTR_T start, end, memory;
5403 gcsPageInfo_PTR info = gcvNULL;
5404 struct page **pages = gcvNULL;
5406 /* Verify the arguments. */
5407 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
5408 gcmkVERIFY_ARGUMENT(Memory != gcvNULL || Physical != ~0U);
5409 gcmkVERIFY_ARGUMENT(Size > 0);
5410 gcmkVERIFY_ARGUMENT(Info != gcvNULL);
5411 gcmkVERIFY_ARGUMENT(Address != gcvNULL);
5415 memory = (gctUINTPTR_T) Memory;
5417 /* Get the number of required pages. */
5418 end = (memory + Size + PAGE_SIZE - 1) >> PAGE_SHIFT;
5419 start = memory >> PAGE_SHIFT;
5420 pageCount = end - start;
5423 gcvLEVEL_INFO, gcvZONE_OS,
5424 "%s(%d): pageCount: %d.",
5425 __FUNCTION__, __LINE__,
5430 if ((memory + Size) < memory)
5432 gcmkFOOTER_ARG("status=%d", gcvSTATUS_INVALID_ARGUMENT);
5433 return gcvSTATUS_INVALID_ARGUMENT;
5436 MEMORY_MAP_LOCK(Os);
5438 /* Allocate the Info struct. */
5439 info = (gcsPageInfo_PTR)kmalloc(sizeof(gcsPageInfo), GFP_KERNEL | gcdNOWARN);
5441 if (info == gcvNULL)
5443 status = gcvSTATUS_OUT_OF_MEMORY;
5447 /* Allocate the array of page addresses. */
5448 pages = (struct page **)kmalloc(pageCount * sizeof(struct page *), GFP_KERNEL | gcdNOWARN);
5450 if (pages == gcvNULL)
5452 status = gcvSTATUS_OUT_OF_MEMORY;
5456 if (Physical != ~0U)
5458 for (i = 0; i < pageCount; i++)
5460 pages[i] = pfn_to_page((Physical >> PAGE_SHIFT) + i);
5466 /* Get the user pages. */
5467 down_read(¤t->mm->mmap_sem);
5469 result = get_user_pages(current,
5479 up_read(¤t->mm->mmap_sem);
5481 if (result <=0 || result < pageCount)
5483 struct vm_area_struct *vma;
5485 /* Release the pages if any. */
5488 for (i = 0; i < result; i++)
5490 if (pages[i] == gcvNULL)
5495 page_cache_release(pages[i]);
5502 vma = find_vma(current->mm, memory);
5504 if (vma && (vma->vm_flags & VM_PFNMAP))
5508 gctUINTPTR_T logical = memory;
5510 for (i = 0; i < pageCount; i++)
5512 pgd_t * pgd = pgd_offset(current->mm, logical);
5513 pud_t * pud = pud_offset(pgd, logical);
5517 pmd_t * pmd = pmd_offset(pud, logical);
5518 pte = pte_offset_map_lock(current->mm, pmd, logical, &ptl);
5521 gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
5526 gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
5529 pages[i] = pte_page(*pte);
5530 pte_unmap_unlock(pte, ptl);
5532 /* Advance to next. */
5533 logical += PAGE_SIZE;
5538 gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
5541 /* Check if this memory is contiguous for old mmu. */
5542 if (Os->device->kernels[Core]->hardware->mmuVersion == 0)
5544 for (i = 1; i < pageCount; i++)
5546 if (pages[i] != nth_page(pages[0], i))
5548 /* Non-contiguous. */
5555 /* Contiguous memory. */
5556 physical = page_to_phys(pages[0]) | (memory & ~PAGE_MASK);
5558 if (!((physical - Os->device->baseAddress) & 0x80000000))
5563 info->pages = gcvNULL;
5564 info->pageTable = gcvNULL;
5566 MEMORY_MAP_UNLOCK(Os);
5568 *Address = physical - Os->device->baseAddress;
5571 gcmkFOOTER_ARG("*Info=0x%X *Address=0x%08x",
5574 return gcvSTATUS_OK;
5579 /* Reference pages. */
5580 for (i = 0; i < pageCount; i++)
5587 for (i = 0; i < pageCount; i++)
5591 get_user(data, (gctUINT32*)((memory & PAGE_MASK) + i * PAGE_SIZE));
5594 /* Flush(clean) the data cache. */
5595 gcmkONERROR(gckOS_CacheFlush(Os, _GetProcessID(), gcvNULL,
5596 (gctPOINTER)(gctUINTPTR_T)page_to_phys(pages[i]),
5597 (gctPOINTER)(memory & PAGE_MASK) + i*PAGE_SIZE,
5602 if (Core == gcvCORE_VG)
5604 /* Allocate pages inside the page table. */
5605 gcmkERR_BREAK(gckVGMMU_AllocatePages(Os->device->kernels[Core]->vg->mmu,
5606 pageCount * (PAGE_SIZE/4096),
5607 (gctPOINTER *) &pageTable,
5613 /* Allocate pages inside the page table. */
5614 gcmkERR_BREAK(gckMMU_AllocatePages(Os->device->kernels[Core]->mmu,
5615 pageCount * (PAGE_SIZE/4096),
5616 (gctPOINTER *) &pageTable,
5620 /* Fill the page table. */
5621 for (i = 0; i < pageCount; i++)
5624 gctUINT32_PTR tab = pageTable + i * (PAGE_SIZE/4096);
5626 phys = page_to_phys(pages[i]);
5629 if (Core == gcvCORE_VG)
5631 /* Get the physical address from page struct. */
5633 gckVGMMU_SetPage(Os->device->kernels[Core]->vg->mmu,
5640 /* Get the physical address from page struct. */
5642 gckMMU_SetPage(Os->device->kernels[Core]->mmu,
5647 for (j = 1; j < (PAGE_SIZE/4096); j++)
5649 pageTable[i * (PAGE_SIZE/4096) + j] = pageTable[i * (PAGE_SIZE/4096)] + 4096 * j;
5653 gcvLEVEL_INFO, gcvZONE_OS,
5654 "%s(%d): pageTable[%d]: 0x%X 0x%X.",
5655 __FUNCTION__, __LINE__,
5656 i, phys, pageTable[i]);
5660 if (Core == gcvCORE_VG)
5662 gcmkONERROR(gckVGMMU_Flush(Os->device->kernels[Core]->vg->mmu));
5667 gcmkONERROR(gckMMU_Flush(Os->device->kernels[Core]->mmu));
5670 /* Save pointer to page table. */
5671 info->pageTable = pageTable;
5672 info->pages = pages;
5674 *Info = (gctPOINTER) info;
5677 gcvLEVEL_INFO, gcvZONE_OS,
5678 "%s(%d): info->pages: 0x%X, info->pageTable: 0x%X, info: 0x%X.",
5679 __FUNCTION__, __LINE__,
5685 offset = (Physical != ~0U)
5686 ? (Physical & ~PAGE_MASK)
5687 : (memory & ~PAGE_MASK);
5689 /* Return address. */
5690 *Address = address + offset;
5693 gcvLEVEL_INFO, gcvZONE_OS,
5694 "%s(%d): Address: 0x%X.",
5695 __FUNCTION__, __LINE__,
5700 status = gcvSTATUS_OK;
5706 if (gcmIS_ERROR(status))
5710 "%s(%d): error occured: %d.",
5711 __FUNCTION__, __LINE__,
5715 /* Release page array. */
5716 if (result > 0 && pages != gcvNULL)
5720 "%s(%d): error: page table is freed.",
5721 __FUNCTION__, __LINE__
5724 for (i = 0; i < result; i++)
5726 if (pages[i] == gcvNULL)
5730 page_cache_release(pages[i]);
5734 if (info!= gcvNULL && pages != gcvNULL)
5738 "%s(%d): error: pages is freed.",
5739 __FUNCTION__, __LINE__
5742 /* Free the page table. */
5744 info->pages = gcvNULL;
5747 /* Release page info struct. */
5748 if (info != gcvNULL)
5752 "%s(%d): error: info is freed.",
5753 __FUNCTION__, __LINE__
5756 /* Free the page info struct. */
5762 MEMORY_MAP_UNLOCK(Os);
5764 /* Return the status. */
5765 if (gcmIS_SUCCESS(status))
5767 gcmkFOOTER_ARG("*Info=0x%X *Address=0x%08x", *Info, *Address);
5779 /*******************************************************************************
5781 ** gckOS_UnmapUserMemory
5783 ** Unlock a user buffer and that was previously locked down by
5784 ** gckOS_MapUserMemory.
5788 ** gctPOINTER Memory
5789 ** Pointer to memory to unlock.
5792 ** Size in bytes of the memory to unlock.
5795 ** Information record returned by gckOS_MapUserMemory.
5797 ** gctUINT32_PTR Address
5798 ** The address returned by gckOS_MapUserMemory.
5805 gckOS_UnmapUserMemory(
5808 IN gctPOINTER Memory,
5811 IN gctUINT32 Address
5816 gcmkHEADER_ARG("Os=0x%X Core=%d Memory=0x%X Size=%lu Info=0x%X Address0x%08x",
5817 Os, Core, Memory, Size, Info, Address);
5820 gcmkONERROR(gckOS_RemoveMapping(Os, Memory, Size));
5823 return gcvSTATUS_OK;
5830 gctUINTPTR_T memory, start, end;
5831 gcsPageInfo_PTR info;
5832 gctSIZE_T pageCount, i;
5833 struct page **pages;
5835 /* Verify the arguments. */
5836 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
5837 gcmkVERIFY_ARGUMENT(Memory != gcvNULL);
5838 gcmkVERIFY_ARGUMENT(Size > 0);
5839 gcmkVERIFY_ARGUMENT(Info != gcvNULL);
5843 info = (gcsPageInfo_PTR) Info;
5845 pages = info->pages;
5848 gcvLEVEL_INFO, gcvZONE_OS,
5849 "%s(%d): info=0x%X, pages=0x%X.",
5850 __FUNCTION__, __LINE__,
5854 /* Invalid page array. */
5855 if (pages == gcvNULL && info->pageTable == gcvNULL)
5860 return gcvSTATUS_OK;
5863 memory = (gctUINTPTR_T)Memory;
5864 end = (memory + Size + PAGE_SIZE - 1) >> PAGE_SHIFT;
5865 start = memory >> PAGE_SHIFT;
5866 pageCount = end - start;
5869 if ((memory + Size) < memory)
5871 gcmkFOOTER_ARG("status=%d", gcvSTATUS_INVALID_ARGUMENT);
5872 return gcvSTATUS_INVALID_ARGUMENT;
5876 gcvLEVEL_INFO, gcvZONE_OS,
5877 "%s(%d): memory: 0x%X, pageCount: %d, pageTable: 0x%X.",
5878 __FUNCTION__, __LINE__,
5879 memory, pageCount, info->pageTable
5882 MEMORY_MAP_LOCK(Os);
5884 gcmkASSERT(info->pageTable != gcvNULL);
5887 if (Core == gcvCORE_VG)
5889 /* Free the pages from the MMU. */
5890 gcmkERR_BREAK(gckVGMMU_FreePages(Os->device->kernels[Core]->vg->mmu,
5892 pageCount * (PAGE_SIZE/4096)
5898 /* Free the pages from the MMU. */
5899 gcmkERR_BREAK(gckMMU_FreePages(Os->device->kernels[Core]->mmu,
5901 pageCount * (PAGE_SIZE/4096)
5905 /* Release the page cache. */
5908 for (i = 0; i < pageCount; i++)
5911 gcvLEVEL_INFO, gcvZONE_OS,
5912 "%s(%d): pages[%d]: 0x%X.",
5913 __FUNCTION__, __LINE__,
5917 if (!PageReserved(pages[i]))
5919 SetPageDirty(pages[i]);
5922 page_cache_release(pages[i]);
5927 status = gcvSTATUS_OK;
5931 if (info != gcvNULL)
5933 /* Free the page array. */
5934 if (info->pages != gcvNULL)
5942 MEMORY_MAP_UNLOCK(Os);
5944 /* Return the status. */
5951 /*******************************************************************************
5953 ** gckOS_GetBaseAddress
5955 ** Get the base address for the physical memory.
5960 ** Pointer to the gckOS object.
5964 ** gctUINT32_PTR BaseAddress
5965 ** Pointer to a variable that will receive the base address.
5968 gckOS_GetBaseAddress(
5970 OUT gctUINT32_PTR BaseAddress
5973 gcmkHEADER_ARG("Os=0x%X", Os);
5975 /* Verify the arguments. */
5976 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
5977 gcmkVERIFY_ARGUMENT(BaseAddress != gcvNULL);
5979 /* Return base address. */
5980 *BaseAddress = Os->device->baseAddress;
5983 gcmkFOOTER_ARG("*BaseAddress=0x%08x", *BaseAddress);
5984 return gcvSTATUS_OK;
5988 gckOS_SuspendInterrupt(
5992 return gckOS_SuspendInterruptEx(Os, gcvCORE_MAJOR);
5996 gckOS_SuspendInterruptEx(
6001 gcmkHEADER_ARG("Os=0x%X Core=%d", Os, Core);
6003 /* Verify the arguments. */
6004 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
6006 disable_irq(Os->device->irqLines[Core]);
6009 return gcvSTATUS_OK;
6013 gckOS_ResumeInterrupt(
6017 return gckOS_ResumeInterruptEx(Os, gcvCORE_MAJOR);
6021 gckOS_ResumeInterruptEx(
6026 gcmkHEADER_ARG("Os=0x%X Core=%d", Os, Core);
6028 /* Verify the arguments. */
6029 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
6031 enable_irq(Os->device->irqLines[Core]);
6034 return gcvSTATUS_OK;
6039 IN gctPOINTER Destination,
6040 IN gctCONST_POINTER Source,
6044 gcmkHEADER_ARG("Destination=0x%X Source=0x%X Bytes=%lu",
6045 Destination, Source, Bytes);
6047 gcmkVERIFY_ARGUMENT(Destination != gcvNULL);
6048 gcmkVERIFY_ARGUMENT(Source != gcvNULL);
6049 gcmkVERIFY_ARGUMENT(Bytes > 0);
6051 memcpy(Destination, Source, Bytes);
6054 return gcvSTATUS_OK;
6059 IN gctPOINTER Memory,
6063 gcmkHEADER_ARG("Memory=0x%X Bytes=%lu", Memory, Bytes);
6065 gcmkVERIFY_ARGUMENT(Memory != gcvNULL);
6066 gcmkVERIFY_ARGUMENT(Bytes > 0);
6068 memset(Memory, 0, Bytes);
6071 return gcvSTATUS_OK;
6074 /*******************************************************************************
6075 ********************************* Cache Control ********************************
6076 *******************************************************************************/
6078 #if !gcdCACHE_FUNCTION_UNIMPLEMENTED && defined(CONFIG_OUTER_CACHE)
6079 static inline gceSTATUS
6081 gceCACHEOPERATION Type,
6082 unsigned long Start,
6088 case gcvCACHE_CLEAN:
6089 outer_clean_range(Start, End);
6091 case gcvCACHE_INVALIDATE:
6092 outer_inv_range(Start, End);
6094 case gcvCACHE_FLUSH:
6095 outer_flush_range(Start, End);
6098 return gcvSTATUS_INVALID_ARGUMENT;
6101 return gcvSTATUS_OK;
6104 #if gcdENABLE_OUTER_CACHE_PATCH
6105 /*******************************************************************************
6106 ** _HandleOuterCache
6108 ** Handle the outer cache for the specified addresses.
6113 ** Pointer to gckOS object.
6115 ** gctUINT32 ProcessID
6116 ** Process ID Logical belongs.
6118 ** gctPHYS_ADDR Handle
6119 ** Physical address handle. If gcvNULL it is video memory.
6121 ** gctPOINTER Physical
6122 ** Physical address to flush.
6124 ** gctPOINTER Logical
6125 ** Logical address to flush.
6128 ** Size of the address range in bytes to flush.
6130 ** gceOUTERCACHE_OPERATION Type
6131 ** Operation need to be execute.
6136 IN gctUINT32 ProcessID,
6137 IN gctPHYS_ADDR Handle,
6138 IN gctPOINTER Physical,
6139 IN gctPOINTER Logical,
6141 IN gceCACHEOPERATION Type
6145 gctUINT32 i, pageNum;
6146 unsigned long paddr;
6149 gcmkHEADER_ARG("Os=0x%X ProcessID=%d Handle=0x%X Logical=0x%X Bytes=%lu",
6150 Os, ProcessID, Handle, Logical, Bytes);
6152 if (Physical != gcvNULL)
6154 /* Non paged memory or gcvPOOL_USER surface */
6155 paddr = (unsigned long) Physical;
6156 gcmkONERROR(outer_func(Type, paddr, paddr + Bytes));
6158 else if ((Handle == gcvNULL)
6159 || (Handle != gcvNULL && ((PLINUX_MDL)Handle)->contiguous)
6162 /* Video Memory or contiguous virtual memory */
6163 gcmkONERROR(gckOS_GetPhysicalAddress(Os, Logical, (gctUINT32*)&paddr));
6164 gcmkONERROR(outer_func(Type, paddr, paddr + Bytes));
6168 /* Non contiguous virtual memory */
6169 vaddr = (gctPOINTER)gcmALIGN_BASE((gctUINTPTR_T)Logical, PAGE_SIZE);
6170 pageNum = GetPageCount(Bytes, 0);
6172 for (i = 0; i < pageNum; i += 1)
6174 gcmkONERROR(_ConvertLogical2Physical(
6176 vaddr + PAGE_SIZE * i,
6182 gcmkONERROR(outer_func(Type, paddr, paddr + PAGE_SIZE));
6190 return gcvSTATUS_OK;
6193 /* Return the status. */
6200 /*******************************************************************************
6203 ** Clean the cache for the specified addresses. The GPU is going to need the
6204 ** data. If the system is allocating memory as non-cachable, this function can
6210 ** Pointer to gckOS object.
6212 ** gctUINT32 ProcessID
6213 ** Process ID Logical belongs.
6215 ** gctPHYS_ADDR Handle
6216 ** Physical address handle. If gcvNULL it is video memory.
6218 ** gctPOINTER Physical
6219 ** Physical address to flush.
6221 ** gctPOINTER Logical
6222 ** Logical address to flush.
6225 ** Size of the address range in bytes to flush.
6230 IN gctUINT32 ProcessID,
6231 IN gctPHYS_ADDR Handle,
6232 IN gctPOINTER Physical,
6233 IN gctPOINTER Logical,
6237 gcmkHEADER_ARG("Os=0x%X ProcessID=%d Handle=0x%X Logical=0x%X Bytes=%lu",
6238 Os, ProcessID, Handle, Logical, Bytes);
6240 /* Verify the arguments. */
6241 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
6242 gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
6243 gcmkVERIFY_ARGUMENT(Bytes > 0);
6245 #if !gcdCACHE_FUNCTION_UNIMPLEMENTED
6249 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)
6250 dmac_map_area(Logical, Bytes, DMA_TO_DEVICE);
6252 dmac_clean_range(Logical, Logical + Bytes);
6255 #if defined(CONFIG_OUTER_CACHE)
6257 #if gcdENABLE_OUTER_CACHE_PATCH
6258 _HandleOuterCache(Os, ProcessID, Handle, Physical, Logical, Bytes, gcvCACHE_CLEAN);
6260 outer_clean_range((unsigned long) Handle, (unsigned long) Handle + Bytes);
6264 #elif defined(CONFIG_MIPS)
6266 dma_cache_wback((unsigned long) Logical, Bytes);
6268 #elif defined(CONFIG_PPC)
6273 dma_sync_single_for_device(
6275 (dma_addr_t)Physical,
6283 return gcvSTATUS_OK;
6286 /*******************************************************************************
6287 ** gckOS_CacheInvalidate
6289 ** Invalidate the cache for the specified addresses. The GPU is going to need
6290 ** data. If the system is allocating memory as non-cachable, this function can
6296 ** Pointer to gckOS object.
6298 ** gctUINT32 ProcessID
6299 ** Process ID Logical belongs.
6301 ** gctPHYS_ADDR Handle
6302 ** Physical address handle. If gcvNULL it is video memory.
6304 ** gctPOINTER Logical
6305 ** Logical address to flush.
6308 ** Size of the address range in bytes to flush.
6311 gckOS_CacheInvalidate(
6313 IN gctUINT32 ProcessID,
6314 IN gctPHYS_ADDR Handle,
6315 IN gctPOINTER Physical,
6316 IN gctPOINTER Logical,
6320 gcmkHEADER_ARG("Os=0x%X ProcessID=%d Handle=0x%X Logical=0x%X Bytes=%lu",
6321 Os, ProcessID, Handle, Logical, Bytes);
6323 /* Verify the arguments. */
6324 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
6325 gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
6326 gcmkVERIFY_ARGUMENT(Bytes > 0);
6328 #if !gcdCACHE_FUNCTION_UNIMPLEMENTED
6332 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)
6333 dmac_map_area(Logical, Bytes, DMA_FROM_DEVICE);
6335 dmac_inv_range(Logical, Logical + Bytes);
6338 #if defined(CONFIG_OUTER_CACHE)
6340 #if gcdENABLE_OUTER_CACHE_PATCH
6341 _HandleOuterCache(Os, ProcessID, Handle, Physical, Logical, Bytes, gcvCACHE_INVALIDATE);
6343 outer_inv_range((unsigned long) Handle, (unsigned long) Handle + Bytes);
6347 #elif defined(CONFIG_MIPS)
6348 dma_cache_inv((unsigned long) Logical, Bytes);
6349 #elif defined(CONFIG_PPC)
6352 dma_sync_single_for_device(
6354 (dma_addr_t)Physical,
6362 return gcvSTATUS_OK;
6365 /*******************************************************************************
6368 ** Clean the cache for the specified addresses and invalidate the lines as
6369 ** well. The GPU is going to need and modify the data. If the system is
6370 ** allocating memory as non-cachable, this function can be ignored.
6375 ** Pointer to gckOS object.
6377 ** gctUINT32 ProcessID
6378 ** Process ID Logical belongs.
6380 ** gctPHYS_ADDR Handle
6381 ** Physical address handle. If gcvNULL it is video memory.
6383 ** gctPOINTER Logical
6384 ** Logical address to flush.
6387 ** Size of the address range in bytes to flush.
6392 IN gctUINT32 ProcessID,
6393 IN gctPHYS_ADDR Handle,
6394 IN gctPOINTER Physical,
6395 IN gctPOINTER Logical,
6399 gcmkHEADER_ARG("Os=0x%X ProcessID=%d Handle=0x%X Logical=0x%X Bytes=%lu",
6400 Os, ProcessID, Handle, Logical, Bytes);
6402 /* Verify the arguments. */
6403 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
6404 gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
6405 gcmkVERIFY_ARGUMENT(Bytes > 0);
6407 #if !gcdCACHE_FUNCTION_UNIMPLEMENTED
6410 dmac_flush_range(Logical, Logical + Bytes);
6412 #if defined(CONFIG_OUTER_CACHE)
6414 #if gcdENABLE_OUTER_CACHE_PATCH
6415 _HandleOuterCache(Os, ProcessID, Handle, Physical, Logical, Bytes, gcvCACHE_FLUSH);
6417 outer_flush_range((unsigned long) Handle, (unsigned long) Handle + Bytes);
6421 #elif defined(CONFIG_MIPS)
6422 dma_cache_wback_inv((unsigned long) Logical, Bytes);
6423 #elif defined(CONFIG_PPC)
6426 dma_sync_single_for_device(
6428 (dma_addr_t)Physical,
6436 return gcvSTATUS_OK;
6439 /*******************************************************************************
6440 ********************************* Broadcasting *********************************
6441 *******************************************************************************/
6443 /*******************************************************************************
6447 ** System hook for broadcast events from the kernel driver.
6452 ** Pointer to the gckOS object.
6454 ** gckHARDWARE Hardware
6455 ** Pointer to the gckHARDWARE object.
6457 ** gceBROADCAST Reason
6458 ** Reason for the broadcast. Can be one of the following values:
6460 ** gcvBROADCAST_GPU_IDLE
6461 ** Broadcasted when the kernel driver thinks the GPU might be
6462 ** idle. This can be used to handle power management.
6464 ** gcvBROADCAST_GPU_COMMIT
6465 ** Broadcasted when any client process commits a command
6466 ** buffer. This can be used to handle power management.
6468 ** gcvBROADCAST_GPU_STUCK
6469 ** Broadcasted when the kernel driver hits the timeout waiting
6472 ** gcvBROADCAST_FIRST_PROCESS
6473 ** First process is trying to connect to the kernel.
6475 ** gcvBROADCAST_LAST_PROCESS
6476 ** Last process has detached from the kernel.
6485 IN gckHARDWARE Hardware,
6486 IN gceBROADCAST Reason
6491 gcmkHEADER_ARG("Os=0x%X Hardware=0x%X Reason=%d", Os, Hardware, Reason);
6493 /* Verify the arguments. */
6494 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
6495 gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
6499 case gcvBROADCAST_FIRST_PROCESS:
6500 gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_OS, "First process has attached");
6503 case gcvBROADCAST_LAST_PROCESS:
6504 gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_OS, "Last process has detached");
6508 gckHARDWARE_SetPowerManagementState(Hardware,
6509 gcvPOWER_OFF_BROADCAST));
6512 case gcvBROADCAST_GPU_IDLE:
6513 gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_OS, "GPU idle.");
6517 gckHARDWARE_SetPowerManagementState(Hardware,
6518 #if gcdPOWER_SUSNPEND_WHEN_IDLE
6519 gcvPOWER_SUSPEND_BROADCAST));
6521 gcvPOWER_IDLE_BROADCAST));
6524 /* Add idle process DB. */
6525 gcmkONERROR(gckKERNEL_AddProcessDB(Hardware->kernel,
6528 gcvNULL, gcvNULL, 0));
6531 case gcvBROADCAST_GPU_COMMIT:
6532 gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_OS, "COMMIT has arrived.");
6534 /* Add busy process DB. */
6535 gcmkONERROR(gckKERNEL_AddProcessDB(Hardware->kernel,
6538 gcvNULL, gcvNULL, 0));
6542 gckHARDWARE_SetPowerManagementState(Hardware, gcvPOWER_ON_AUTO));
6545 case gcvBROADCAST_GPU_STUCK:
6546 gcmkTRACE_N(gcvLEVEL_ERROR, 0, "gcvBROADCAST_GPU_STUCK\n");
6547 #if !gcdENABLE_RECOVERY
6548 gcmkONERROR(gckHARDWARE_DumpGPUState(Hardware));
6550 gcmkONERROR(gckKERNEL_Recovery(Hardware->kernel));
6553 case gcvBROADCAST_AXI_BUS_ERROR:
6554 gcmkTRACE_N(gcvLEVEL_ERROR, 0, "gcvBROADCAST_AXI_BUS_ERROR\n");
6555 gcmkONERROR(gckHARDWARE_DumpGPUState(Hardware));
6556 gcmkONERROR(gckKERNEL_Recovery(Hardware->kernel));
6562 return gcvSTATUS_OK;
6565 /* Return the status. */
6570 /*******************************************************************************
6572 ** gckOS_BroadcastHurry
6574 ** The GPU is running too slow.
6579 ** Pointer to the gckOS object.
6581 ** gckHARDWARE Hardware
6582 ** Pointer to the gckHARDWARE object.
6585 ** The higher the number, the higher the urgency to speed up the GPU.
6586 ** The maximum value is defined by the gcdDYNAMIC_EVENT_THRESHOLD.
6593 gckOS_BroadcastHurry(
6595 IN gckHARDWARE Hardware,
6599 gcmkHEADER_ARG("Os=0x%x Hardware=0x%x Urgency=%u", Os, Hardware, Urgency);
6601 /* Do whatever you need to do to speed up the GPU now. */
6605 return gcvSTATUS_OK;
6608 /*******************************************************************************
6610 ** gckOS_BroadcastCalibrateSpeed
6612 ** Calibrate the speed of the GPU.
6617 ** Pointer to the gckOS object.
6619 ** gckHARDWARE Hardware
6620 ** Pointer to the gckHARDWARE object.
6622 ** gctUINT Idle, Time
6623 ** Idle/Time will give the percentage the GPU is idle, so you can use
6624 ** this to calibrate the working point of the GPU.
6631 gckOS_BroadcastCalibrateSpeed(
6633 IN gckHARDWARE Hardware,
6638 gcmkHEADER_ARG("Os=0x%x Hardware=0x%x Idle=%u Time=%u",
6639 Os, Hardware, Idle, Time);
6641 /* Do whatever you need to do to callibrate the GPU speed. */
6645 return gcvSTATUS_OK;
6648 /*******************************************************************************
6649 ********************************** Semaphores **********************************
6650 *******************************************************************************/
6652 /*******************************************************************************
6654 ** gckOS_CreateSemaphore
6656 ** Create a semaphore.
6661 ** Pointer to the gckOS object.
6665 ** gctPOINTER * Semaphore
6666 ** Pointer to the variable that will receive the created semaphore.
6669 gckOS_CreateSemaphore(
6671 OUT gctPOINTER * Semaphore
6675 struct semaphore *sem = gcvNULL;
6677 gcmkHEADER_ARG("Os=0x%X", Os);
6679 /* Verify the arguments. */
6680 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
6681 gcmkVERIFY_ARGUMENT(Semaphore != gcvNULL);
6683 /* Allocate the semaphore structure. */
6684 sem = (struct semaphore *)kmalloc(gcmSIZEOF(struct semaphore), GFP_KERNEL | gcdNOWARN);
6687 gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
6690 /* Initialize the semaphore. */
6693 /* Return to caller. */
6694 *Semaphore = (gctPOINTER) sem;
6698 return gcvSTATUS_OK;
6701 /* Return the status. */
6706 /*******************************************************************************
6708 ** gckOS_AcquireSemaphore
6710 ** Acquire a semaphore.
6715 ** Pointer to the gckOS object.
6717 ** gctPOINTER Semaphore
6718 ** Pointer to the semaphore thet needs to be acquired.
6725 gckOS_AcquireSemaphore(
6727 IN gctPOINTER Semaphore
6732 gcmkHEADER_ARG("Os=0x%08X Semaphore=0x%08X", Os, Semaphore);
6734 /* Verify the arguments. */
6735 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
6736 gcmkVERIFY_ARGUMENT(Semaphore != gcvNULL);
6738 /* Acquire the semaphore. */
6739 if (down_interruptible((struct semaphore *) Semaphore))
6741 gcmkONERROR(gcvSTATUS_INTERRUPTED);
6746 return gcvSTATUS_OK;
6749 /* Return the status. */
6754 /*******************************************************************************
6756 ** gckOS_TryAcquireSemaphore
6758 ** Try to acquire a semaphore.
6763 ** Pointer to the gckOS object.
6765 ** gctPOINTER Semaphore
6766 ** Pointer to the semaphore thet needs to be acquired.
6773 gckOS_TryAcquireSemaphore(
6775 IN gctPOINTER Semaphore
6780 gcmkHEADER_ARG("Os=0x%x", Os);
6782 /* Verify the arguments. */
6783 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
6784 gcmkVERIFY_ARGUMENT(Semaphore != gcvNULL);
6786 /* Acquire the semaphore. */
6787 if (down_trylock((struct semaphore *) Semaphore))
6790 status = gcvSTATUS_TIMEOUT;
6797 return gcvSTATUS_OK;
6800 /*******************************************************************************
6802 ** gckOS_ReleaseSemaphore
6804 ** Release a previously acquired semaphore.
6809 ** Pointer to the gckOS object.
6811 ** gctPOINTER Semaphore
6812 ** Pointer to the semaphore thet needs to be released.
6819 gckOS_ReleaseSemaphore(
6821 IN gctPOINTER Semaphore
6824 gcmkHEADER_ARG("Os=0x%X Semaphore=0x%X", Os, Semaphore);
6826 /* Verify the arguments. */
6827 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
6828 gcmkVERIFY_ARGUMENT(Semaphore != gcvNULL);
6830 /* Release the semaphore. */
6831 up((struct semaphore *) Semaphore);
6835 return gcvSTATUS_OK;
6838 /*******************************************************************************
6840 ** gckOS_DestroySemaphore
6842 ** Destroy a semaphore.
6847 ** Pointer to the gckOS object.
6849 ** gctPOINTER Semaphore
6850 ** Pointer to the semaphore thet needs to be destroyed.
6857 gckOS_DestroySemaphore(
6859 IN gctPOINTER Semaphore
6862 gcmkHEADER_ARG("Os=0x%X Semaphore=0x%X", Os, Semaphore);
6864 /* Verify the arguments. */
6865 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
6866 gcmkVERIFY_ARGUMENT(Semaphore != gcvNULL);
6868 /* Free the sempahore structure. */
6873 return gcvSTATUS_OK;
6876 /*******************************************************************************
6878 ** gckOS_GetProcessID
6880 ** Get current process ID.
6888 ** gctUINT32_PTR ProcessID
6889 ** Pointer to the variable that receives the process ID.
6893 OUT gctUINT32_PTR ProcessID
6896 /* Get process ID. */
6897 if (ProcessID != gcvNULL)
6899 *ProcessID = _GetProcessID();
6903 return gcvSTATUS_OK;
6906 /*******************************************************************************
6908 ** gckOS_GetThreadID
6910 ** Get current thread ID.
6918 ** gctUINT32_PTR ThreadID
6919 ** Pointer to the variable that receives the thread ID.
6923 OUT gctUINT32_PTR ThreadID
6926 /* Get thread ID. */
6927 if (ThreadID != gcvNULL)
6929 *ThreadID = _GetThreadID();
6933 return gcvSTATUS_OK;
6936 /*******************************************************************************
6938 ** gckOS_SetGPUPower
6940 ** Set the power of the GPU on or off.
6945 ** Pointer to a gckOS object.
6948 ** GPU whose power is set.
6951 ** gcvTRUE to turn on the clock, or gcvFALSE to turn off the clock.
6954 ** gcvTRUE to turn on the power, or gcvFALSE to turn off the power.
6968 struct clk *clk_3dcore = Os->device->clk_3d_core;
6969 struct clk *clk_3dshader = Os->device->clk_3d_shader;
6970 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0)
6971 struct clk *clk_3d_axi = Os->device->clk_3d_axi;
6973 struct clk *clk_2dcore = Os->device->clk_2d_core;
6974 struct clk *clk_2d_axi = Os->device->clk_2d_axi;
6975 struct clk *clk_vg_axi = Os->device->clk_vg_axi;
6976 #if LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0) || LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
6980 gctBOOL oldClockState = gcvFALSE;
6981 gctBOOL oldPowerState = gcvFALSE;
6983 gcmkHEADER_ARG("Os=0x%X Core=%d Clock=%d Power=%d", Os, Core, Clock, Power);
6985 if (Os->device->kernels[Core] != NULL)
6988 if (Core == gcvCORE_VG)
6990 oldClockState = Os->device->kernels[Core]->vg->hardware->clockState;
6991 oldPowerState = Os->device->kernels[Core]->vg->hardware->powerState;
6996 oldClockState = Os->device->kernels[Core]->hardware->clockState;
6997 oldPowerState = Os->device->kernels[Core]->hardware->powerState;
7002 if((Power == gcvTRUE) && (oldPowerState == gcvFALSE))
7004 #if LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0) || LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
7005 if(!IS_ERR(Os->device->gpu_regulator)) {
7006 ret = regulator_enable(Os->device->gpu_regulator);
7008 gckOS_Print("%s(%d): fail to enable pu regulator %d!\n",
7009 __FUNCTION__, __LINE__, ret);
7012 imx_gpc_power_up_pu(true);
7016 pm_runtime_get_sync(Os->device->pmdev);
7020 #if LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0)
7021 if (Clock == gcvTRUE) {
7022 if (oldClockState == gcvFALSE) {
7025 clk_enable(clk_3dcore);
7027 clk_enable(clk_3dshader);
7030 clk_enable(clk_2dcore);
7031 clk_enable(clk_2d_axi);
7034 clk_enable(clk_2dcore);
7035 clk_enable(clk_vg_axi);
7042 if (oldClockState == gcvTRUE) {
7046 clk_disable(clk_3dshader);
7047 clk_disable(clk_3dcore);
7050 clk_disable(clk_2dcore);
7051 clk_disable(clk_2d_axi);
7054 clk_disable(clk_2dcore);
7055 clk_disable(clk_vg_axi);
7063 if (Clock == gcvTRUE) {
7064 if (oldClockState == gcvFALSE) {
7067 clk_prepare(clk_3dcore);
7068 clk_enable(clk_3dcore);
7069 clk_prepare(clk_3dshader);
7070 clk_enable(clk_3dshader);
7071 clk_prepare(clk_3d_axi);
7072 clk_enable(clk_3d_axi);
7075 clk_prepare(clk_2dcore);
7076 clk_enable(clk_2dcore);
7077 clk_prepare(clk_2d_axi);
7078 clk_enable(clk_2d_axi);
7081 clk_prepare(clk_2dcore);
7082 clk_enable(clk_2dcore);
7083 clk_prepare(clk_vg_axi);
7084 clk_enable(clk_vg_axi);
7091 if (oldClockState == gcvTRUE) {
7094 clk_disable(clk_3dshader);
7095 clk_unprepare(clk_3dshader);
7096 clk_disable(clk_3dcore);
7097 clk_unprepare(clk_3dcore);
7098 clk_disable(clk_3d_axi);
7099 clk_unprepare(clk_3d_axi);
7102 clk_disable(clk_2dcore);
7103 clk_unprepare(clk_2dcore);
7104 clk_disable(clk_2d_axi);
7105 clk_unprepare(clk_2d_axi);
7108 clk_disable(clk_2dcore);
7109 clk_unprepare(clk_2dcore);
7110 clk_disable(clk_vg_axi);
7111 clk_unprepare(clk_vg_axi);
7119 if((Power == gcvFALSE) && (oldPowerState == gcvTRUE))
7122 pm_runtime_put_sync(Os->device->pmdev);
7125 #if LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0) || LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
7126 if(!IS_ERR(Os->device->gpu_regulator))
7127 regulator_disable(Os->device->gpu_regulator);
7129 imx_gpc_power_up_pu(false);
7133 /* TODO: Put your code here. */
7135 return gcvSTATUS_OK;
7138 /*******************************************************************************
7147 ** Pointer to a gckOS object.
7150 ** GPU whose power is set.
7162 #if LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0)
7163 #define SRC_SCR_OFFSET 0
7164 #define BP_SRC_SCR_GPU3D_RST 1
7165 #define BP_SRC_SCR_GPU2D_RST 4
7166 void __iomem *src_base = IO_ADDRESS(SRC_BASE_ADDR);
7167 gctUINT32 bit_offset,val;
7169 gcmkHEADER_ARG("Os=0x%X Core=%d", Os, Core);
7171 if(Core == gcvCORE_MAJOR) {
7172 bit_offset = BP_SRC_SCR_GPU3D_RST;
7173 } else if((Core == gcvCORE_VG)
7174 ||(Core == gcvCORE_2D)) {
7175 bit_offset = BP_SRC_SCR_GPU2D_RST;
7177 return gcvSTATUS_INVALID_CONFIG;
7179 val = __raw_readl(src_base + SRC_SCR_OFFSET);
7180 val &= ~(1 << (bit_offset));
7181 val |= (1 << (bit_offset));
7182 __raw_writel(val, src_base + SRC_SCR_OFFSET);
7184 while ((__raw_readl(src_base + SRC_SCR_OFFSET) &
7185 (1 << (bit_offset))) != 0) {
7189 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
7190 struct reset_control *rstc = Os->device->rstc[Core];
7192 reset_control_reset(rstc);
7194 imx_src_reset_gpu((int)Core);
7196 return gcvSTATUS_OK;
7199 /*******************************************************************************
7201 ** gckOS_PrepareGPUFrequency
7203 ** Prepare to set GPU frequency and voltage.
7208 ** Pointer to a gckOS object.
7211 ** GPU whose frequency and voltage will be set.
7218 gckOS_PrepareGPUFrequency(
7223 return gcvSTATUS_OK;
7226 /*******************************************************************************
7228 ** gckOS_FinishGPUFrequency
7230 ** Finish GPU frequency setting.
7235 ** Pointer to a gckOS object.
7238 ** GPU whose frequency and voltage is set.
7245 gckOS_FinishGPUFrequency(
7250 return gcvSTATUS_OK;
7253 /*******************************************************************************
7255 ** gckOS_QueryGPUFrequency
7257 ** Query the current frequency of the GPU.
7262 ** Pointer to a gckOS object.
7265 ** GPU whose power is set.
7267 ** gctUINT32 * Frequency
7268 ** Pointer to a gctUINT32 to obtain current frequency, in MHz.
7271 ** Pointer to a gctUINT8 to obtain current scale(1 - 64).
7278 gckOS_QueryGPUFrequency(
7281 OUT gctUINT32 * Frequency,
7282 OUT gctUINT8 * Scale
7285 return gcvSTATUS_OK;
7288 /*******************************************************************************
7290 ** gckOS_SetGPUFrequency
7292 ** Set frequency and voltage of the GPU.
7294 ** 1. DVFS manager gives the target scale of full frequency, BSP must find
7295 ** a real frequency according to this scale and board's configure.
7297 ** 2. BSP should find a suitable voltage for this frequency.
7299 ** 3. BSP must make sure setting take effect before this function returns.
7304 ** Pointer to a gckOS object.
7307 ** GPU whose power is set.
7310 ** Target scale of full frequency, range is [1, 64]. 1 means 1/64 of
7311 ** full frequency and 64 means 64/64 of full frequency.
7318 gckOS_SetGPUFrequency(
7324 return gcvSTATUS_OK;
7327 /*----------------------------------------------------------------------------*/
7328 /*----- Profile --------------------------------------------------------------*/
7331 gckOS_GetProfileTick(
7332 OUT gctUINT64_PTR Tick
7335 struct timespec time;
7337 ktime_get_ts(&time);
7339 *Tick = time.tv_nsec + time.tv_sec * 1000000000ULL;
7341 return gcvSTATUS_OK;
7345 gckOS_QueryProfileTickRate(
7346 OUT gctUINT64_PTR TickRate
7349 struct timespec res;
7351 hrtimer_get_res(CLOCK_MONOTONIC, &res);
7353 *TickRate = res.tv_nsec + res.tv_sec * 1000000000ULL;
7355 return gcvSTATUS_OK;
7363 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23)
7364 return div_u64(Ticks, 1000000);
7366 gctUINT64 rem = Ticks;
7367 gctUINT64 b = 1000000;
7368 gctUINT64 res, d = 1;
7369 gctUINT32 high = rem >> 32;
7371 /* Reduce the thing a bit first */
7373 if (high >= 1000000)
7376 res = (gctUINT64) high << 32;
7377 rem -= (gctUINT64) (high * 1000000) << 32;
7380 while (((gctINT64) b > 0) && (b < rem))
7399 return (gctUINT32) res;
7403 /******************************************************************************\
7404 ******************************* Signal Management ******************************
7405 \******************************************************************************/
7408 #define _GC_OBJ_ZONE gcvZONE_SIGNAL
7410 /*******************************************************************************
7412 ** gckOS_CreateSignal
7414 ** Create a new signal.
7419 ** Pointer to an gckOS object.
7421 ** gctBOOL ManualReset
7422 ** If set to gcvTRUE, gckOS_Signal with gcvFALSE must be called in
7423 ** order to set the signal to nonsignaled state.
7424 ** If set to gcvFALSE, the signal will automatically be set to
7425 ** nonsignaled state by gckOS_WaitSignal function.
7429 ** gctSIGNAL * Signal
7430 ** Pointer to a variable receiving the created gctSIGNAL.
7435 IN gctBOOL ManualReset,
7436 OUT gctSIGNAL * Signal
7440 gcsSIGNAL_PTR signal;
7442 gcmkHEADER_ARG("Os=0x%X ManualReset=%d", Os, ManualReset);
7444 /* Verify the arguments. */
7445 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
7446 gcmkVERIFY_ARGUMENT(Signal != gcvNULL);
7448 /* Create an event structure. */
7449 signal = (gcsSIGNAL_PTR) kmalloc(sizeof(gcsSIGNAL), GFP_KERNEL | gcdNOWARN);
7451 if (signal == gcvNULL)
7453 gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
7456 /* Save the process ID. */
7457 signal->process = (gctHANDLE)(gctUINTPTR_T) _GetProcessID();
7458 signal->manualReset = ManualReset;
7459 signal->hardware = gcvNULL;
7460 init_completion(&signal->obj);
7461 atomic_set(&signal->ref, 1);
7463 gcmkONERROR(_AllocateIntegerId(&Os->signalDB, signal, &signal->id));
7465 *Signal = (gctSIGNAL)(gctUINTPTR_T)signal->id;
7467 gcmkFOOTER_ARG("*Signal=0x%X", *Signal);
7468 return gcvSTATUS_OK;
7471 if (signal != gcvNULL)
7481 gckOS_SignalQueryHardware(
7483 IN gctSIGNAL Signal,
7484 OUT gckHARDWARE * Hardware
7488 gcsSIGNAL_PTR signal;
7490 gcmkHEADER_ARG("Os=0x%X Signal=0x%X Hardware=0x%X", Os, Signal, Hardware);
7492 /* Verify the arguments. */
7493 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
7494 gcmkVERIFY_ARGUMENT(Signal != gcvNULL);
7495 gcmkVERIFY_ARGUMENT(Hardware != gcvNULL);
7497 gcmkONERROR(_QueryIntegerId(&Os->signalDB, (gctUINT32)(gctUINTPTR_T)Signal, (gctPOINTER)&signal));
7499 *Hardware = signal->hardware;
7502 return gcvSTATUS_OK;
7509 gckOS_SignalSetHardware(
7511 IN gctSIGNAL Signal,
7512 IN gckHARDWARE Hardware
7516 gcsSIGNAL_PTR signal;
7518 gcmkHEADER_ARG("Os=0x%X Signal=0x%X Hardware=0x%X", Os, Signal, Hardware);
7520 /* Verify the arguments. */
7521 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
7522 gcmkVERIFY_ARGUMENT(Signal != gcvNULL);
7524 gcmkONERROR(_QueryIntegerId(&Os->signalDB, (gctUINT32)(gctUINTPTR_T)Signal, (gctPOINTER)&signal));
7526 signal->hardware = Hardware;
7529 return gcvSTATUS_OK;
7535 /*******************************************************************************
7537 ** gckOS_DestroySignal
7539 ** Destroy a signal.
7544 ** Pointer to an gckOS object.
7547 ** Pointer to the gctSIGNAL.
7554 gckOS_DestroySignal(
7560 gcsSIGNAL_PTR signal;
7561 gctBOOL acquired = gcvFALSE;
7563 gcmkHEADER_ARG("Os=0x%X Signal=0x%X", Os, Signal);
7565 /* Verify the arguments. */
7566 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
7567 gcmkVERIFY_ARGUMENT(Signal != gcvNULL);
7569 gcmkONERROR(gckOS_AcquireMutex(Os, Os->signalMutex, gcvINFINITE));
7572 gcmkONERROR(_QueryIntegerId(&Os->signalDB, (gctUINT32)(gctUINTPTR_T)Signal, (gctPOINTER)&signal));
7574 gcmkASSERT(signal->id == (gctUINT32)(gctUINTPTR_T)Signal);
7576 if (atomic_dec_and_test(&signal->ref))
7578 gcmkVERIFY_OK(_DestroyIntegerId(&Os->signalDB, signal->id));
7580 /* Free the sgianl. */
7584 gcmkVERIFY_OK(gckOS_ReleaseMutex(Os, Os->signalMutex));
7585 acquired = gcvFALSE;
7589 return gcvSTATUS_OK;
7594 /* Release the mutex. */
7595 gcmkVERIFY_OK(gckOS_ReleaseMutex(Os, Os->signalMutex));
7602 /*******************************************************************************
7606 ** Set a state of the specified signal.
7611 ** Pointer to an gckOS object.
7614 ** Pointer to the gctSIGNAL.
7617 ** If gcvTRUE, the signal will be set to signaled state.
7618 ** If gcvFALSE, the signal will be set to nonsignaled state.
7627 IN gctSIGNAL Signal,
7632 gcsSIGNAL_PTR signal;
7633 gctBOOL acquired = gcvFALSE;
7635 gcmkHEADER_ARG("Os=0x%X Signal=0x%X State=%d", Os, Signal, State);
7637 /* Verify the arguments. */
7638 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
7639 gcmkVERIFY_ARGUMENT(Signal != gcvNULL);
7641 gcmkONERROR(gckOS_AcquireMutex(Os, Os->signalMutex, gcvINFINITE));
7644 gcmkONERROR(_QueryIntegerId(&Os->signalDB, (gctUINT32)(gctUINTPTR_T)Signal, (gctPOINTER)&signal));
7646 gcmkASSERT(signal->id == (gctUINT32)(gctUINTPTR_T)Signal);
7650 /* unbind the signal from hardware. */
7651 signal->hardware = gcvNULL;
7653 /* Set the event to a signaled state. */
7654 complete(&signal->obj);
7658 /* Set the event to an unsignaled state. */
7659 reinit_completion(&signal->obj);
7662 gcmkVERIFY_OK(gckOS_ReleaseMutex(Os, Os->signalMutex));
7663 acquired = gcvFALSE;
7667 return gcvSTATUS_OK;
7672 /* Release the mutex. */
7673 gcmkVERIFY_OK(gckOS_ReleaseMutex(Os, Os->signalMutex));
7684 IN gctHANDLE Process,
7690 struct task_struct * userTask;
7691 struct siginfo info;
7693 userTask = FIND_TASK_BY_PID((pid_t)(gctUINTPTR_T) Process);
7695 if (userTask != gcvNULL)
7698 info.si_code = __SI_CODE(__SI_RT, SI_KERNEL);
7701 info.si_ptr = (gctPOINTER) Signal;
7703 /* Signals with numbers between 32 and 63 are real-time,
7704 send a real-time signal to the user process. */
7705 result = send_sig_info(48, &info, userTask);
7707 printk("gckOS_SetSignalVG:0x%x\n", result);
7711 status = gcvSTATUS_GENERIC_IO;
7715 "%s(%d): an error has occurred.\n",
7716 __FUNCTION__, __LINE__
7721 status = gcvSTATUS_OK;
7726 status = gcvSTATUS_GENERIC_IO;
7730 "%s(%d): an error has occurred.\n",
7731 __FUNCTION__, __LINE__
7735 /* Return status. */
7740 /*******************************************************************************
7744 ** Set the specified signal which is owned by a process to signaled state.
7749 ** Pointer to an gckOS object.
7752 ** Pointer to the gctSIGNAL.
7754 ** gctHANDLE Process
7755 ** Handle of process owning the signal.
7764 IN gctSIGNAL Signal,
7765 IN gctHANDLE Process
7771 gcmkHEADER_ARG("Os=0x%X Signal=0x%X Process=%d",
7772 Os, Signal, (gctINT32)(gctUINTPTR_T)Process);
7774 /* Map the signal into kernel space. */
7775 gcmkONERROR(gckOS_MapSignal(Os, Signal, Process, &signal));
7778 status = gckOS_Signal(Os, signal, gcvTRUE);
7780 /* Unmap the signal */
7781 gcmkVERIFY_OK(gckOS_UnmapSignal(Os, Signal));
7787 /* Return the status. */
7792 /*******************************************************************************
7796 ** Wait for a signal to become signaled.
7801 ** Pointer to an gckOS object.
7804 ** Pointer to the gctSIGNAL.
7807 ** Number of milliseconds to wait.
7808 ** Pass the value of gcvINFINITE for an infinite wait.
7817 IN gctSIGNAL Signal,
7821 gceSTATUS status = gcvSTATUS_OK;
7822 gcsSIGNAL_PTR signal;
7824 gcmkHEADER_ARG("Os=0x%X Signal=0x%X Wait=0x%08X", Os, Signal, Wait);
7826 /* Verify the arguments. */
7827 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
7828 gcmkVERIFY_ARGUMENT(Signal != gcvNULL);
7830 gcmkONERROR(_QueryIntegerId(&Os->signalDB, (gctUINT32)(gctUINTPTR_T)Signal, (gctPOINTER)&signal));
7832 gcmkASSERT(signal->id == (gctUINT32)(gctUINTPTR_T)Signal);
7836 spin_lock_irq(&signal->obj.wait.lock);
7838 if (signal->obj.done)
7840 if (!signal->manualReset)
7842 signal->obj.done = 0;
7845 status = gcvSTATUS_OK;
7849 status = gcvSTATUS_TIMEOUT;
7853 /* Convert wait to milliseconds. */
7854 #if gcdDETECT_TIMEOUT
7855 gctINT timeout = (Wait == gcvINFINITE)
7856 ? gcdINFINITE_TIMEOUT * HZ / 1000
7859 gctUINT complained = 0;
7861 gctINT timeout = (Wait == gcvINFINITE)
7862 ? MAX_SCHEDULE_TIMEOUT
7866 DECLARE_WAITQUEUE(wait, current);
7867 wait.flags |= WQ_FLAG_EXCLUSIVE;
7868 __add_wait_queue_tail(&signal->obj.wait, &wait);
7872 if (signal_pending(current))
7874 /* Interrupt received. */
7875 status = gcvSTATUS_INTERRUPTED;
7879 __set_current_state(TASK_INTERRUPTIBLE);
7880 spin_unlock_irq(&signal->obj.wait.lock);
7881 timeout = schedule_timeout(timeout);
7882 spin_lock_irq(&signal->obj.wait.lock);
7884 if (signal->obj.done)
7886 if (!signal->manualReset)
7888 signal->obj.done = 0;
7891 status = gcvSTATUS_OK;
7895 #if gcdDETECT_TIMEOUT
7896 if ((Wait == gcvINFINITE) && (timeout == 0))
7898 gctUINT32 dmaAddress1, dmaAddress2;
7899 gctUINT32 dmaState1, dmaState2;
7901 dmaState1 = dmaState2 =
7902 dmaAddress1 = dmaAddress2 = 0;
7904 /* Verify whether DMA is running. */
7905 gcmkVERIFY_OK(_VerifyDMA(
7906 Os, &dmaAddress1, &dmaAddress2, &dmaState1, &dmaState2
7909 #if gcdDETECT_DMA_ADDRESS
7910 /* Dump only if DMA appears stuck. */
7912 (dmaAddress1 == dmaAddress2)
7913 #if gcdDETECT_DMA_STATE
7914 && (dmaState1 == dmaState2)
7919 /* Increment complain count. */
7922 gcmkVERIFY_OK(_DumpGPUState(Os, gcvCORE_MAJOR));
7925 "%s(%d): signal 0x%X; forced message flush (%d).",
7926 __FUNCTION__, __LINE__, Signal, complained
7929 /* Flush the debug cache. */
7930 gcmkDEBUGFLUSH(dmaAddress2);
7933 /* Reset timeout. */
7934 timeout = gcdINFINITE_TIMEOUT * HZ / 1000;
7941 status = gcvSTATUS_TIMEOUT;
7946 __remove_wait_queue(&signal->obj.wait, &wait);
7948 #if gcdDETECT_TIMEOUT
7952 "%s(%d): signal=0x%X; waiting done; status=%d",
7953 __FUNCTION__, __LINE__, Signal, status
7959 spin_unlock_irq(&signal->obj.wait.lock);
7962 /* Return status. */
7963 gcmkFOOTER_ARG("Signal=0x%X status=%d", Signal, status);
7967 /*******************************************************************************
7971 ** Map a signal in to the current process space.
7976 ** Pointer to an gckOS object.
7979 ** Pointer to tha gctSIGNAL to map.
7981 ** gctHANDLE Process
7982 ** Handle of process owning the signal.
7986 ** gctSIGNAL * MappedSignal
7987 ** Pointer to a variable receiving the mapped gctSIGNAL.
7992 IN gctSIGNAL Signal,
7993 IN gctHANDLE Process,
7994 OUT gctSIGNAL * MappedSignal
7998 gcsSIGNAL_PTR signal;
7999 gcmkHEADER_ARG("Os=0x%X Signal=0x%X Process=0x%X", Os, Signal, Process);
8001 gcmkVERIFY_ARGUMENT(Signal != gcvNULL);
8002 gcmkVERIFY_ARGUMENT(MappedSignal != gcvNULL);
8004 gcmkONERROR(_QueryIntegerId(&Os->signalDB, (gctUINT32)(gctUINTPTR_T)Signal, (gctPOINTER)&signal));
8006 if(atomic_inc_return(&signal->ref) <= 1)
8008 /* The previous value is 0, it has been deleted. */
8009 gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
8012 *MappedSignal = (gctSIGNAL) Signal;
8015 gcmkFOOTER_ARG("*MappedSignal=0x%X", *MappedSignal);
8016 return gcvSTATUS_OK;
8023 /*******************************************************************************
8025 ** gckOS_UnmapSignal
8032 ** Pointer to an gckOS object.
8035 ** Pointer to that gctSIGNAL mapped.
8043 return gckOS_DestroySignal(Os, Signal);
8046 /*******************************************************************************
8048 ** gckOS_CreateUserSignal
8050 ** Create a new signal to be used in the user space.
8055 ** Pointer to an gckOS object.
8057 ** gctBOOL ManualReset
8058 ** If set to gcvTRUE, gckOS_Signal with gcvFALSE must be called in
8059 ** order to set the signal to nonsignaled state.
8060 ** If set to gcvFALSE, the signal will automatically be set to
8061 ** nonsignaled state by gckOS_WaitSignal function.
8065 ** gctINT * SignalID
8066 ** Pointer to a variable receiving the created signal's ID.
8069 gckOS_CreateUserSignal(
8071 IN gctBOOL ManualReset,
8072 OUT gctINT * SignalID
8078 /* Create a new signal. */
8079 status = gckOS_CreateSignal(Os, ManualReset, (gctSIGNAL *) &signal);
8080 *SignalID = (gctINT) signal;
8085 /*******************************************************************************
8087 ** gckOS_DestroyUserSignal
8089 ** Destroy a signal to be used in the user space.
8094 ** Pointer to an gckOS object.
8104 gckOS_DestroyUserSignal(
8109 return gckOS_DestroySignal(Os, (gctSIGNAL)(gctUINTPTR_T)SignalID);
8112 /*******************************************************************************
8114 ** gckOS_WaitUserSignal
8116 ** Wait for a signal used in the user mode to become signaled.
8121 ** Pointer to an gckOS object.
8127 ** Number of milliseconds to wait.
8128 ** Pass the value of gcvINFINITE for an infinite wait.
8135 gckOS_WaitUserSignal(
8141 return gckOS_WaitSignal(Os, (gctSIGNAL)(gctUINTPTR_T)SignalID, Wait);
8144 /*******************************************************************************
8146 ** gckOS_SignalUserSignal
8148 ** Set a state of the specified signal to be used in the user space.
8153 ** Pointer to an gckOS object.
8159 ** If gcvTRUE, the signal will be set to signaled state.
8160 ** If gcvFALSE, the signal will be set to nonsignaled state.
8167 gckOS_SignalUserSignal(
8173 return gckOS_Signal(Os, (gctSIGNAL)(gctUINTPTR_T)SignalID, State);
8178 gckOS_CreateSemaphoreVG(
8180 OUT gctSEMAPHORE * Semaphore
8184 struct semaphore * newSemaphore;
8186 gcmkHEADER_ARG("Os=0x%X Semaphore=0x%x", Os, Semaphore);
8187 /* Verify the arguments. */
8188 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
8189 gcmkVERIFY_ARGUMENT(Semaphore != gcvNULL);
8193 /* Allocate the semaphore structure. */
8194 newSemaphore = (struct semaphore *)kmalloc(gcmSIZEOF(struct semaphore), GFP_KERNEL | gcdNOWARN);
8195 if (newSemaphore == gcvNULL)
8197 gcmkERR_BREAK(gcvSTATUS_OUT_OF_MEMORY);
8200 /* Initialize the semaphore. */
8201 sema_init(newSemaphore, 0);
8203 /* Set the handle. */
8204 * Semaphore = (gctSEMAPHORE) newSemaphore;
8207 status = gcvSTATUS_OK;
8212 /* Return the status. */
8218 gckOS_IncrementSemaphore(
8220 IN gctSEMAPHORE Semaphore
8223 gcmkHEADER_ARG("Os=0x%X Semaphore=0x%x", Os, Semaphore);
8224 /* Verify the arguments. */
8225 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
8226 gcmkVERIFY_ARGUMENT(Semaphore != gcvNULL);
8228 /* Increment the semaphore's count. */
8229 up((struct semaphore *) Semaphore);
8233 return gcvSTATUS_OK;
8237 gckOS_DecrementSemaphore(
8239 IN gctSEMAPHORE Semaphore
8245 gcmkHEADER_ARG("Os=0x%X Semaphore=0x%x", Os, Semaphore);
8246 /* Verify the arguments. */
8247 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
8248 gcmkVERIFY_ARGUMENT(Semaphore != gcvNULL);
8252 /* Decrement the semaphore's count. If the count is zero, wait
8253 until it gets incremented. */
8254 result = down_interruptible((struct semaphore *) Semaphore);
8256 /* Signal received? */
8259 status = gcvSTATUS_TERMINATE;
8264 status = gcvSTATUS_OK;
8269 /* Return the status. */
8273 /*******************************************************************************
8277 ** Set the specified signal to signaled state.
8282 ** Pointer to the gckOS object.
8284 ** gctHANDLE Process
8285 ** Handle of process owning the signal.
8288 ** Pointer to the gctSIGNAL.
8297 IN gctHANDLE Process,
8303 struct task_struct * userTask;
8304 struct siginfo info;
8306 userTask = FIND_TASK_BY_PID((pid_t)(gctUINTPTR_T) Process);
8308 if (userTask != gcvNULL)
8311 info.si_code = __SI_CODE(__SI_RT, SI_KERNEL);
8314 info.si_ptr = (gctPOINTER) Signal;
8316 /* Signals with numbers between 32 and 63 are real-time,
8317 send a real-time signal to the user process. */
8318 result = send_sig_info(48, &info, userTask);
8323 status = gcvSTATUS_GENERIC_IO;
8327 "%s(%d): an error has occurred.\n",
8328 __FUNCTION__, __LINE__
8333 status = gcvSTATUS_OK;
8338 status = gcvSTATUS_GENERIC_IO;
8342 "%s(%d): an error has occurred.\n",
8343 __FUNCTION__, __LINE__
8347 /* Return status. */
8351 /******************************************************************************\
8352 ******************************** Thread Object *********************************
8353 \******************************************************************************/
8358 IN gctTHREADFUNC ThreadFunction,
8359 IN gctPOINTER ThreadParameter,
8360 OUT gctTHREAD * Thread
8364 struct task_struct * thread;
8366 gcmkHEADER_ARG("Os=0x%X ", Os);
8367 /* Verify the arguments. */
8368 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
8369 gcmkVERIFY_ARGUMENT(ThreadFunction != gcvNULL);
8370 gcmkVERIFY_ARGUMENT(Thread != gcvNULL);
8374 /* Create the thread. */
8375 thread = kthread_create(
8378 "Vivante Kernel Thread"
8384 status = gcvSTATUS_GENERIC_IO;
8388 /* Start the thread. */
8389 wake_up_process(thread);
8391 /* Set the thread handle. */
8392 * Thread = (gctTHREAD) thread;
8395 status = gcvSTATUS_OK;
8400 /* Return the status. */
8410 gcmkHEADER_ARG("Os=0x%X Thread=0x%x", Os, Thread);
8411 /* Verify the arguments. */
8412 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
8413 gcmkVERIFY_ARGUMENT(Thread != gcvNULL);
8415 /* Thread should have already been enabled to terminate. */
8416 kthread_stop((struct task_struct *) Thread);
8420 return gcvSTATUS_OK;
8429 gcmkHEADER_ARG("Os=0x%X Thread=0x%x", Os, Thread);
8430 /* Verify the arguments. */
8431 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
8432 gcmkVERIFY_ARGUMENT(Thread != gcvNULL);
8436 return gcvSTATUS_OK;
8440 /******************************************************************************\
8441 ******************************** Software Timer ********************************
8442 \******************************************************************************/
8446 struct work_struct * work
8449 gcsOSTIMER_PTR timer = (gcsOSTIMER_PTR)work;
8451 gctTIMERFUNCTION function = timer->function;
8453 function(timer->data);
8456 /*******************************************************************************
8458 ** gckOS_CreateTimer
8460 ** Create a software timer.
8465 ** Pointer to the gckOS object.
8467 ** gctTIMERFUNCTION Function.
8468 ** Pointer to a call back function which will be called when timer is
8472 ** Private data which will be passed to call back function.
8476 ** gctPOINTER * Timer
8477 ** Pointer to a variable receiving the created timer.
8482 IN gctTIMERFUNCTION Function,
8484 OUT gctPOINTER * Timer
8488 gcsOSTIMER_PTR pointer;
8489 gcmkHEADER_ARG("Os=0x%X Function=0x%X Data=0x%X", Os, Function, Data);
8491 /* Verify the arguments. */
8492 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
8493 gcmkVERIFY_ARGUMENT(Timer != gcvNULL);
8495 gcmkONERROR(gckOS_Allocate(Os, sizeof(gcsOSTIMER), (gctPOINTER)&pointer));
8497 pointer->function = Function;
8498 pointer->data = Data;
8500 INIT_DELAYED_WORK(&pointer->work, _TimerFunction);
8505 return gcvSTATUS_OK;
8512 /*******************************************************************************
8514 ** gckOS_DestroyTimer
8516 ** Destory a software timer.
8521 ** Pointer to the gckOS object.
8524 ** Pointer to the timer to be destoryed.
8536 gcsOSTIMER_PTR timer;
8537 gcmkHEADER_ARG("Os=0x%X Timer=0x%X", Os, Timer);
8539 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
8540 gcmkVERIFY_ARGUMENT(Timer != gcvNULL);
8542 timer = (gcsOSTIMER_PTR)Timer;
8544 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23)
8545 cancel_delayed_work_sync(&timer->work);
8547 cancel_delayed_work(&timer->work);
8548 flush_workqueue(Os->workqueue);
8551 gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Os, Timer));
8554 return gcvSTATUS_OK;
8557 /*******************************************************************************
8561 ** Schedule a software timer.
8566 ** Pointer to the gckOS object.
8569 ** Pointer to the timer to be scheduled.
8572 ** Delay in milliseconds.
8581 IN gctPOINTER Timer,
8585 gcsOSTIMER_PTR timer;
8587 gcmkHEADER_ARG("Os=0x%X Timer=0x%X Delay=%u", Os, Timer, Delay);
8589 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
8590 gcmkVERIFY_ARGUMENT(Timer != gcvNULL);
8591 gcmkVERIFY_ARGUMENT(Delay != 0);
8593 timer = (gcsOSTIMER_PTR)Timer;
8595 if (unlikely(delayed_work_pending(&timer->work)))
8597 if (unlikely(!cancel_delayed_work(&timer->work)))
8599 cancel_work_sync(&timer->work.work);
8601 if (unlikely(delayed_work_pending(&timer->work)))
8603 gckOS_Print("gckOS_StartTimer error, the pending worker cannot complete!!!! \n");
8605 return gcvSTATUS_INVALID_REQUEST;
8610 queue_delayed_work(Os->workqueue, &timer->work, msecs_to_jiffies(Delay));
8613 return gcvSTATUS_OK;
8616 /*******************************************************************************
8620 ** Cancel a unscheduled timer.
8625 ** Pointer to the gckOS object.
8628 ** Pointer to the timer to be cancel.
8640 gcsOSTIMER_PTR timer;
8641 gcmkHEADER_ARG("Os=0x%X Timer=0x%X", Os, Timer);
8643 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
8644 gcmkVERIFY_ARGUMENT(Timer != gcvNULL);
8646 timer = (gcsOSTIMER_PTR)Timer;
8648 cancel_delayed_work(&timer->work);
8651 return gcvSTATUS_OK;
8656 gckOS_DumpCallStack(
8660 gcmkHEADER_ARG("Os=0x%X", Os);
8662 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
8667 return gcvSTATUS_OK;
8672 gckOS_GetProcessNameByPid(
8674 IN gctSIZE_T Length,
8675 OUT gctUINT8_PTR String
8678 struct task_struct *task;
8680 /* Get the task_struct of the task with pid. */
8683 task = FIND_TASK_BY_PID(Pid);
8685 if (task == gcvNULL)
8688 return gcvSTATUS_NOT_FOUND;
8691 /* Get name of process. */
8692 strncpy(String, task->comm, Length);
8696 return gcvSTATUS_OK;
8699 #if gcdANDROID_NATIVE_FENCE_SYNC
8702 gckOS_CreateSyncPoint(
8704 OUT gctSYNC_POINT * SyncPoint
8708 gcsSYNC_POINT_PTR syncPoint;
8710 gcmkHEADER_ARG("Os=0x%X", Os);
8712 /* Verify the arguments. */
8713 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
8715 /* Create an sync point structure. */
8716 syncPoint = (gcsSYNC_POINT_PTR) kmalloc(
8717 sizeof(gcsSYNC_POINT), GFP_KERNEL | gcdNOWARN);
8719 if (syncPoint == gcvNULL)
8721 gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
8724 /* Initialize the sync point. */
8725 atomic_set(&syncPoint->ref, 1);
8726 atomic_set(&syncPoint->state, 0);
8728 gcmkONERROR(_AllocateIntegerId(&Os->syncPointDB, syncPoint, &syncPoint->id));
8730 *SyncPoint = (gctSYNC_POINT)(gctUINTPTR_T)syncPoint->id;
8732 gcmkFOOTER_ARG("*SyncPonint=%d", syncPoint->id);
8733 return gcvSTATUS_OK;
8736 if (syncPoint != gcvNULL)
8746 gckOS_ReferenceSyncPoint(
8748 IN gctSYNC_POINT SyncPoint
8752 gcsSYNC_POINT_PTR syncPoint;
8754 gcmkHEADER_ARG("Os=0x%X", Os);
8756 /* Verify the arguments. */
8757 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
8758 gcmkVERIFY_ARGUMENT(SyncPoint != gcvNULL);
8761 _QueryIntegerId(&Os->syncPointDB,
8762 (gctUINT32)(gctUINTPTR_T)SyncPoint,
8763 (gctPOINTER)&syncPoint));
8765 /* Initialize the sync point. */
8766 atomic_inc(&syncPoint->ref);
8769 return gcvSTATUS_OK;
8777 gckOS_DestroySyncPoint(
8779 IN gctSYNC_POINT SyncPoint
8783 gcsSYNC_POINT_PTR syncPoint;
8784 gctBOOL acquired = gcvFALSE;
8786 gcmkHEADER_ARG("Os=0x%X SyncPoint=%d", Os, (gctUINT32)(gctUINTPTR_T)SyncPoint);
8788 /* Verify the arguments. */
8789 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
8790 gcmkVERIFY_ARGUMENT(SyncPoint != gcvNULL);
8792 gcmkONERROR(gckOS_AcquireMutex(Os, Os->syncPointMutex, gcvINFINITE));
8796 _QueryIntegerId(&Os->syncPointDB,
8797 (gctUINT32)(gctUINTPTR_T)SyncPoint,
8798 (gctPOINTER)&syncPoint));
8800 gcmkASSERT(syncPoint->id == (gctUINT32)(gctUINTPTR_T)SyncPoint);
8802 if (atomic_dec_and_test(&syncPoint->ref))
8804 gcmkVERIFY_OK(_DestroyIntegerId(&Os->syncPointDB, syncPoint->id));
8806 /* Free the sgianl. */
8807 syncPoint->timeline = gcvNULL;
8811 gcmkVERIFY_OK(gckOS_ReleaseMutex(Os, Os->syncPointMutex));
8812 acquired = gcvFALSE;
8816 return gcvSTATUS_OK;
8821 /* Release the mutex. */
8822 gcmkVERIFY_OK(gckOS_ReleaseMutex(Os, Os->syncPointMutex));
8830 gckOS_SignalSyncPoint(
8832 IN gctSYNC_POINT SyncPoint
8836 gcsSYNC_POINT_PTR syncPoint;
8837 gctBOOL acquired = gcvFALSE;
8839 gcmkHEADER_ARG("Os=0x%X SyncPoint=%d", Os, (gctUINT32)(gctUINTPTR_T)SyncPoint);
8841 /* Verify the arguments. */
8842 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
8843 gcmkVERIFY_ARGUMENT(SyncPoint != gcvNULL);
8845 gcmkONERROR(gckOS_AcquireMutex(Os, Os->syncPointMutex, gcvINFINITE));
8849 _QueryIntegerId(&Os->syncPointDB,
8850 (gctUINT32)(gctUINTPTR_T)SyncPoint,
8851 (gctPOINTER)&syncPoint));
8853 gcmkASSERT(syncPoint->id == (gctUINT32)(gctUINTPTR_T)SyncPoint);
8856 atomic_set(&syncPoint->state, gcvTRUE);
8858 /* Signal timeline. */
8859 if (syncPoint->timeline)
8861 sync_timeline_signal(syncPoint->timeline);
8864 gcmkVERIFY_OK(gckOS_ReleaseMutex(Os, Os->syncPointMutex));
8865 acquired = gcvFALSE;
8869 return gcvSTATUS_OK;
8874 /* Release the mutex. */
8875 gcmkVERIFY_OK(gckOS_ReleaseMutex(Os, Os->syncPointMutex));
8883 gckOS_QuerySyncPoint(
8885 IN gctSYNC_POINT SyncPoint,
8886 OUT gctBOOL_PTR State
8890 gcsSYNC_POINT_PTR syncPoint;
8892 gcmkHEADER_ARG("Os=0x%X SyncPoint=%d", Os, (gctUINT32)(gctUINTPTR_T)SyncPoint);
8894 /* Verify the arguments. */
8895 gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
8896 gcmkVERIFY_ARGUMENT(SyncPoint != gcvNULL);
8899 _QueryIntegerId(&Os->syncPointDB,
8900 (gctUINT32)(gctUINTPTR_T)SyncPoint,
8901 (gctPOINTER)&syncPoint));
8903 gcmkASSERT(syncPoint->id == (gctUINT32)(gctUINTPTR_T)SyncPoint);
8906 *State = atomic_read(&syncPoint->state);
8909 gcmkFOOTER_ARG("*State=%d", *State);
8910 return gcvSTATUS_OK;
8918 gckOS_CreateSyncTimeline(
8920 OUT gctHANDLE * Timeline
8923 struct viv_sync_timeline * timeline;
8925 /* Create viv sync timeline. */
8926 timeline = viv_sync_timeline_create("viv timeline", Os);
8928 if (timeline == gcvNULL)
8930 /* Out of memory. */
8931 return gcvSTATUS_OUT_OF_MEMORY;
8934 *Timeline = (gctHANDLE) timeline;
8935 return gcvSTATUS_OK;
8939 gckOS_DestroySyncTimeline(
8941 IN gctHANDLE Timeline
8944 struct viv_sync_timeline * timeline;
8945 gcmkASSERT(Timeline != gcvNULL);
8947 /* Destroy timeline. */
8948 timeline = (struct viv_sync_timeline *) Timeline;
8949 sync_timeline_destroy(&timeline->obj);
8951 return gcvSTATUS_OK;
8955 gckOS_CreateNativeFence(
8957 IN gctHANDLE Timeline,
8958 IN gctSYNC_POINT SyncPoint,
8959 OUT gctINT * FenceFD
8963 struct viv_sync_timeline *timeline;
8964 struct sync_pt * pt = gcvNULL;
8965 struct sync_fence * fence;
8967 gcsSYNC_POINT_PTR syncPoint;
8970 gcmkHEADER_ARG("Os=0x%X Timeline=0x%X SyncPoint=%d",
8971 Os, Timeline, (gctUINT)(gctUINTPTR_T)SyncPoint);
8974 _QueryIntegerId(&Os->syncPointDB,
8975 (gctUINT32)(gctUINTPTR_T)SyncPoint,
8976 (gctPOINTER)&syncPoint));
8978 /* Cast timeline. */
8979 timeline = (struct viv_sync_timeline *) Timeline;
8981 fd = get_unused_fd();
8985 /* Out of resources. */
8986 gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
8989 /* Create viv_sync_pt. */
8990 pt = viv_sync_pt_create(timeline, SyncPoint);
8994 gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
8997 /* Reference sync_timeline. */
8998 syncPoint->timeline = &timeline->obj;
9000 /* Build fence name. */
9001 snprintf(name, 32, "viv sync_fence-%u", (gctUINT)(gctUINTPTR_T)SyncPoint);
9003 /* Create sync_fence. */
9004 fence = sync_fence_create(name, pt);
9008 gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
9011 /* Install fence to fd. */
9012 sync_fence_install(fence, fd);
9015 gcmkFOOTER_ARG("*FenceFD=%d", fd);
9016 return gcvSTATUS_OK;
9019 /* Error roll back. */