Merge branch 'drm-for-2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/airlie...

[karo-tx-linux.git] / drivers / gpu / drm / ttm / ttm_bo.c

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 0e3754a3a303c18391538180b702a2b0e4c66399..555ebb12ace83dae496fbf41e357bc29c954542d 100644 (file)
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -79,8 +79,6 @@ static void ttm_mem_type_debug(struct ttm_bo_device *bdev, int mem_type)
        printk(KERN_ERR TTM_PFX "    use_type: %d\n", man->use_type);
        printk(KERN_ERR TTM_PFX "    flags: 0x%08X\n", man->flags);
        printk(KERN_ERR TTM_PFX "    gpu_offset: 0x%08lX\n", man->gpu_offset);
-       printk(KERN_ERR TTM_PFX "    io_offset: 0x%08lX\n", man->io_offset);
-       printk(KERN_ERR TTM_PFX "    io_size: %ld\n", man->io_size);
        printk(KERN_ERR TTM_PFX "    size: %llu\n", man->size);
        printk(KERN_ERR TTM_PFX "    available_caching: 0x%08X\n",
                man->available_caching);
@@ -357,7 +355,8 @@ static int ttm_bo_add_ttm(struct ttm_buffer_object *bo, bool zero_alloc)
 
 static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
                                  struct ttm_mem_reg *mem,
-                                 bool evict, bool interruptible, bool no_wait)
+                                 bool evict, bool interruptible,
+                                 bool no_wait_reserve, bool no_wait_gpu)
 {
        struct ttm_bo_device *bdev = bo->bdev;
        bool old_is_pci = ttm_mem_reg_is_pci(bdev, &bo->mem);
@@ -402,12 +401,12 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
 
        if (!(old_man->flags & TTM_MEMTYPE_FLAG_FIXED) &&
            !(new_man->flags & TTM_MEMTYPE_FLAG_FIXED))
-               ret = ttm_bo_move_ttm(bo, evict, no_wait, mem);
+               ret = ttm_bo_move_ttm(bo, evict, no_wait_reserve, no_wait_gpu, mem);
        else if (bdev->driver->move)
                ret = bdev->driver->move(bo, evict, interruptible,
-                                        no_wait, mem);
+                                        no_wait_reserve, no_wait_gpu, mem);
        else
-               ret = ttm_bo_move_memcpy(bo, evict, no_wait, mem);
+               ret = ttm_bo_move_memcpy(bo, evict, no_wait_reserve, no_wait_gpu, mem);
 
        if (ret)
                goto out_err;
@@ -605,8 +604,22 @@ void ttm_bo_unref(struct ttm_buffer_object **p_bo)
 }
 EXPORT_SYMBOL(ttm_bo_unref);
 
+int ttm_bo_lock_delayed_workqueue(struct ttm_bo_device *bdev)
+{
+       return cancel_delayed_work_sync(&bdev->wq);
+}
+EXPORT_SYMBOL(ttm_bo_lock_delayed_workqueue);
+
+void ttm_bo_unlock_delayed_workqueue(struct ttm_bo_device *bdev, int resched)
+{
+       if (resched)
+               schedule_delayed_work(&bdev->wq,
+                                     ((HZ / 100) < 1) ? 1 : HZ / 100);
+}
+EXPORT_SYMBOL(ttm_bo_unlock_delayed_workqueue);
+
 static int ttm_bo_evict(struct ttm_buffer_object *bo, bool interruptible,
-                       bool no_wait)
+                       bool no_wait_reserve, bool no_wait_gpu)
 {
        struct ttm_bo_device *bdev = bo->bdev;
        struct ttm_bo_global *glob = bo->glob;
@@ -615,7 +628,7 @@ static int ttm_bo_evict(struct ttm_buffer_object *bo, bool interruptible,
        int ret = 0;
 
        spin_lock(&bo->lock);
-       ret = ttm_bo_wait(bo, false, interruptible, no_wait);
+       ret = ttm_bo_wait(bo, false, interruptible, no_wait_gpu);
        spin_unlock(&bo->lock);
 
        if (unlikely(ret != 0)) {
@@ -631,6 +644,7 @@ static int ttm_bo_evict(struct ttm_buffer_object *bo, bool interruptible,
 
        evict_mem = bo->mem;
        evict_mem.mm_node = NULL;
+       evict_mem.bus.io_reserved = false;
 
        placement.fpfn = 0;
        placement.lpfn = 0;
@@ -638,7 +652,7 @@ static int ttm_bo_evict(struct ttm_buffer_object *bo, bool interruptible,
        placement.num_busy_placement = 0;
        bdev->driver->evict_flags(bo, &placement);
        ret = ttm_bo_mem_space(bo, &placement, &evict_mem, interruptible,
-                               no_wait);
+                               no_wait_reserve, no_wait_gpu);
        if (ret) {
                if (ret != -ERESTARTSYS) {
                        printk(KERN_ERR TTM_PFX
@@ -650,7 +664,7 @@ static int ttm_bo_evict(struct ttm_buffer_object *bo, bool interruptible,
        }
 
        ret = ttm_bo_handle_move_mem(bo, &evict_mem, true, interruptible,
-                                    no_wait);
+                                    no_wait_reserve, no_wait_gpu);
        if (ret) {
                if (ret != -ERESTARTSYS)
                        printk(KERN_ERR TTM_PFX "Buffer eviction failed\n");
@@ -670,7 +684,8 @@ out:
 
 static int ttm_mem_evict_first(struct ttm_bo_device *bdev,
                                uint32_t mem_type,
-                               bool interruptible, bool no_wait)
+                               bool interruptible, bool no_wait_reserve,
+                               bool no_wait_gpu)
 {
        struct ttm_bo_global *glob = bdev->glob;
        struct ttm_mem_type_manager *man = &bdev->man[mem_type];
@@ -687,11 +702,11 @@ retry:
        bo = list_first_entry(&man->lru, struct ttm_buffer_object, lru);
        kref_get(&bo->list_kref);
 
-       ret = ttm_bo_reserve_locked(bo, false, true, false, 0);
+       ret = ttm_bo_reserve_locked(bo, false, no_wait_reserve, false, 0);
 
        if (unlikely(ret == -EBUSY)) {
                spin_unlock(&glob->lru_lock);
-               if (likely(!no_wait))
+               if (likely(!no_wait_gpu))
                        ret = ttm_bo_wait_unreserved(bo, interruptible);
 
                kref_put(&bo->list_kref, ttm_bo_release_list);
@@ -713,7 +728,7 @@ retry:
        while (put_count--)
                kref_put(&bo->list_kref, ttm_bo_ref_bug);
 
-       ret = ttm_bo_evict(bo, interruptible, no_wait);
+       ret = ttm_bo_evict(bo, interruptible, no_wait_reserve, no_wait_gpu);
        ttm_bo_unreserve(bo);
 
        kref_put(&bo->list_kref, ttm_bo_release_list);
@@ -764,7 +779,9 @@ static int ttm_bo_mem_force_space(struct ttm_buffer_object *bo,
                                        uint32_t mem_type,
                                        struct ttm_placement *placement,
                                        struct ttm_mem_reg *mem,
-                                       bool interruptible, bool no_wait)
+                                       bool interruptible,
+                                       bool no_wait_reserve,
+                                       bool no_wait_gpu)
 {
        struct ttm_bo_device *bdev = bo->bdev;
        struct ttm_bo_global *glob = bdev->glob;
@@ -785,7 +802,7 @@ static int ttm_bo_mem_force_space(struct ttm_buffer_object *bo,
                }
                spin_unlock(&glob->lru_lock);
                ret = ttm_mem_evict_first(bdev, mem_type, interruptible,
-                                               no_wait);
+                                               no_wait_reserve, no_wait_gpu);
                if (unlikely(ret != 0))
                        return ret;
        } while (1);
@@ -855,7 +872,8 @@ static bool ttm_bo_mt_compatible(struct ttm_mem_type_manager *man,
 int ttm_bo_mem_space(struct ttm_buffer_object *bo,
                        struct ttm_placement *placement,
                        struct ttm_mem_reg *mem,
-                       bool interruptible, bool no_wait)
+                       bool interruptible, bool no_wait_reserve,
+                       bool no_wait_gpu)
 {
        struct ttm_bo_device *bdev = bo->bdev;
        struct ttm_mem_type_manager *man;
@@ -952,7 +970,7 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
                }
 
                ret = ttm_bo_mem_force_space(bo, mem_type, placement, mem,
-                                               interruptible, no_wait);
+                                               interruptible, no_wait_reserve, no_wait_gpu);
                if (ret == 0 && mem->mm_node) {
                        mem->placement = cur_flags;
                        mem->mm_node->private = bo;
@@ -978,7 +996,8 @@ EXPORT_SYMBOL(ttm_bo_wait_cpu);
 
 int ttm_bo_move_buffer(struct ttm_buffer_object *bo,
                        struct ttm_placement *placement,
-                       bool interruptible, bool no_wait)
+                       bool interruptible, bool no_wait_reserve,
+                       bool no_wait_gpu)
 {
        struct ttm_bo_global *glob = bo->glob;
        int ret = 0;
@@ -992,20 +1011,21 @@ int ttm_bo_move_buffer(struct ttm_buffer_object *bo,
         * instead of doing it here.
         */
        spin_lock(&bo->lock);
-       ret = ttm_bo_wait(bo, false, interruptible, no_wait);
+       ret = ttm_bo_wait(bo, false, interruptible, no_wait_gpu);
        spin_unlock(&bo->lock);
        if (ret)
                return ret;
        mem.num_pages = bo->num_pages;
        mem.size = mem.num_pages << PAGE_SHIFT;
        mem.page_alignment = bo->mem.page_alignment;
+       mem.bus.io_reserved = false;
        /*
         * Determine where to move the buffer.
         */
-       ret = ttm_bo_mem_space(bo, placement, &mem, interruptible, no_wait);
+       ret = ttm_bo_mem_space(bo, placement, &mem, interruptible, no_wait_reserve, no_wait_gpu);
        if (ret)
                goto out_unlock;
-       ret = ttm_bo_handle_move_mem(bo, &mem, false, interruptible, no_wait);
+       ret = ttm_bo_handle_move_mem(bo, &mem, false, interruptible, no_wait_reserve, no_wait_gpu);
 out_unlock:
        if (ret && mem.mm_node) {
                spin_lock(&glob->lru_lock);
@@ -1039,7 +1059,8 @@ static int ttm_bo_mem_compat(struct ttm_placement *placement,
 
 int ttm_bo_validate(struct ttm_buffer_object *bo,
                        struct ttm_placement *placement,
-                       bool interruptible, bool no_wait)
+                       bool interruptible, bool no_wait_reserve,
+                       bool no_wait_gpu)
 {
        int ret;
 
@@ -1054,7 +1075,7 @@ int ttm_bo_validate(struct ttm_buffer_object *bo,
         */
        ret = ttm_bo_mem_compat(placement, &bo->mem);
        if (ret < 0) {
-               ret = ttm_bo_move_buffer(bo, placement, interruptible, no_wait);
+               ret = ttm_bo_move_buffer(bo, placement, interruptible, no_wait_reserve, no_wait_gpu);
                if (ret)
                        return ret;
        } else {
@@ -1153,6 +1174,7 @@ int ttm_bo_init(struct ttm_bo_device *bdev,
        bo->mem.num_pages = bo->num_pages;
        bo->mem.mm_node = NULL;
        bo->mem.page_alignment = page_alignment;
+       bo->mem.bus.io_reserved = false;
        bo->buffer_start = buffer_start & PAGE_MASK;
        bo->priv_flags = 0;
        bo->mem.placement = (TTM_PL_FLAG_SYSTEM | TTM_PL_FLAG_CACHED);
@@ -1175,7 +1197,7 @@ int ttm_bo_init(struct ttm_bo_device *bdev,
                        goto out_err;
        }
 
-       ret = ttm_bo_validate(bo, placement, interruptible, false);
+       ret = ttm_bo_validate(bo, placement, interruptible, false, false);
        if (ret)
                goto out_err;
 
@@ -1249,7 +1271,7 @@ static int ttm_bo_force_list_clean(struct ttm_bo_device *bdev,
        spin_lock(&glob->lru_lock);
        while (!list_empty(&man->lru)) {
                spin_unlock(&glob->lru_lock);
-               ret = ttm_mem_evict_first(bdev, mem_type, false, false);
+               ret = ttm_mem_evict_first(bdev, mem_type, false, false, false);
                if (ret) {
                        if (allow_errors) {
                                return ret;
@@ -1553,26 +1575,6 @@ bool ttm_mem_reg_is_pci(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
        return true;
 }
 
-int ttm_bo_pci_offset(struct ttm_bo_device *bdev,
-                     struct ttm_mem_reg *mem,
-                     unsigned long *bus_base,
-                     unsigned long *bus_offset, unsigned long *bus_size)
-{
-       struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
-
-       *bus_size = 0;
-       if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
-               return -EINVAL;
-
-       if (ttm_mem_reg_is_pci(bdev, mem)) {
-               *bus_offset = mem->mm_node->start << PAGE_SHIFT;
-               *bus_size = mem->num_pages << PAGE_SHIFT;
-               *bus_base = man->io_offset;
-       }
-
-       return 0;
-}
-
 void ttm_bo_unmap_virtual(struct ttm_buffer_object *bo)
 {
        struct ttm_bo_device *bdev = bo->bdev;
@@ -1581,8 +1583,8 @@ void ttm_bo_unmap_virtual(struct ttm_buffer_object *bo)
 
        if (!bdev->dev_mapping)
                return;
-
        unmap_mapping_range(bdev->dev_mapping, offset, holelen, 1);
+       ttm_mem_io_free(bdev, &bo->mem);
 }
 EXPORT_SYMBOL(ttm_bo_unmap_virtual);
 
@@ -1811,7 +1813,7 @@ static int ttm_bo_swapout(struct ttm_mem_shrink *shrink)
                evict_mem.mem_type = TTM_PL_SYSTEM;
 
                ret = ttm_bo_handle_move_mem(bo, &evict_mem, true,
-                                            false, false);
+                                            false, false, false);
                if (unlikely(ret != 0))
                        goto out;
        }