2 * Copyright (C) 2015 Etnaviv Project
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 as published by
6 * the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * You should have received a copy of the GNU General Public License along with
14 * this program. If not, see <http://www.gnu.org/licenses/>.
17 #ifndef __ETNAVIV_GPU_H__
18 #define __ETNAVIV_GPU_H__
20 #include <linux/clk.h>
21 #include <linux/regulator/consumer.h>
23 #include "etnaviv_drv.h"
25 struct etnaviv_gem_submit;
27 struct etnaviv_chip_identity {
34 /* Supported feature fields. */
37 /* Supported minor feature fields. */
40 /* Supported minor feature 1 fields. */
43 /* Supported minor feature 2 fields. */
46 /* Supported minor feature 3 fields. */
49 /* Number of streams supported. */
52 /* Total number of temporary registers per thread. */
55 /* Maximum number of threads. */
58 /* Number of shader cores. */
59 u32 shader_core_count;
61 /* Size of the vertex cache. */
62 u32 vertex_cache_size;
64 /* Number of entries in the vertex output buffer. */
65 u32 vertex_output_buffer_size;
67 /* Number of pixel pipes. */
70 /* Number of instructions. */
71 u32 instruction_count;
73 /* Number of constants. */
80 struct etnaviv_event {
85 struct etnaviv_cmdbuf;
88 struct drm_device *drm;
91 struct etnaviv_chip_identity identity;
92 struct etnaviv_file_private *lastctx;
96 struct etnaviv_cmdbuf *buffer;
98 /* bus base address of memory */
101 /* event management: */
102 struct etnaviv_event event[30];
103 struct completion event_free;
104 spinlock_t event_spinlock;
106 /* list of currently in-flight command buffers */
107 struct list_head active_cmd_list;
111 /* Fencing support */
116 wait_queue_head_t fence_event;
117 unsigned int fence_context;
118 spinlock_t fence_spinlock;
120 /* worker for handling active-list retiring: */
121 struct work_struct retire_work;
126 struct etnaviv_iommu *mmu;
130 struct clk *clk_core;
131 struct clk *clk_shader;
134 #define DRM_ETNAVIV_HANGCHECK_PERIOD 500 /* in ms */
135 #define DRM_ETNAVIV_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_ETNAVIV_HANGCHECK_PERIOD)
136 struct timer_list hangcheck_timer;
138 u32 hangcheck_dma_addr;
139 struct work_struct recover_work;
142 struct etnaviv_cmdbuf {
143 /* device this cmdbuf is allocated for */
144 struct etnaviv_gpu *gpu;
145 /* user context key, must be unique between all active users */
146 struct etnaviv_file_private *ctx;
147 /* cmdbuf properties */
152 /* fence after which this buffer is to be disposed */
154 /* target exec state */
156 /* per GPU in-flight list */
157 struct list_head node;
158 /* BOs attached to this command buffer */
160 struct etnaviv_gem_object *bo[0];
163 static inline void gpu_write(struct etnaviv_gpu *gpu, u32 reg, u32 data)
165 etnaviv_writel(data, gpu->mmio + reg);
168 static inline u32 gpu_read(struct etnaviv_gpu *gpu, u32 reg)
170 return etnaviv_readl(gpu->mmio + reg);
173 static inline bool fence_completed(struct etnaviv_gpu *gpu, u32 fence)
175 return fence_after_eq(gpu->completed_fence, fence);
178 static inline bool fence_retired(struct etnaviv_gpu *gpu, u32 fence)
180 return fence_after_eq(gpu->retired_fence, fence);
183 int etnaviv_gpu_get_param(struct etnaviv_gpu *gpu, u32 param, u64 *value);
185 int etnaviv_gpu_init(struct etnaviv_gpu *gpu);
187 #ifdef CONFIG_DEBUG_FS
188 int etnaviv_gpu_debugfs(struct etnaviv_gpu *gpu, struct seq_file *m);
191 int etnaviv_gpu_fence_sync_obj(struct etnaviv_gem_object *etnaviv_obj,
192 unsigned int context, bool exclusive);
194 void etnaviv_gpu_retire(struct etnaviv_gpu *gpu);
195 int etnaviv_gpu_wait_fence_interruptible(struct etnaviv_gpu *gpu,
196 u32 fence, struct timespec *timeout);
197 int etnaviv_gpu_wait_obj_inactive(struct etnaviv_gpu *gpu,
198 struct etnaviv_gem_object *etnaviv_obj, struct timespec *timeout);
199 int etnaviv_gpu_submit(struct etnaviv_gpu *gpu,
200 struct etnaviv_gem_submit *submit, struct etnaviv_cmdbuf *cmdbuf);
201 struct etnaviv_cmdbuf *etnaviv_gpu_cmdbuf_new(struct etnaviv_gpu *gpu,
202 u32 size, size_t nr_bos);
203 void etnaviv_gpu_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf);
204 int etnaviv_gpu_pm_get_sync(struct etnaviv_gpu *gpu);
205 void etnaviv_gpu_pm_put(struct etnaviv_gpu *gpu);
207 extern struct platform_driver etnaviv_gpu_driver;
209 #endif /* __ETNAVIV_GPU_H__ */