diff --git a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c index 3ebbeb3a9b68f1080cfec70ad3ef197456871b66..b707b5bca9ab6bbe3e275cabc4db889a5b9c53b9 100644 --- a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c @@ -427,6 +427,19 @@ static void a3xx_dump(struct msm_gpu *gpu) gpu_read(gpu, REG_A3XX_RBBM_STATUS)); adreno_dump(gpu); } + +static struct msm_gpu_state *a3xx_gpu_state_get(struct msm_gpu *gpu) +{ + struct msm_gpu_state *state = adreno_gpu_state_get(gpu); + + if (IS_ERR(state)) + return state; + + state->rbbm_status = gpu_read(gpu, REG_A3XX_RBBM_STATUS); + + return state; +} + /* Register offset defines for A3XX */ static const unsigned int a3xx_register_offsets[REG_ADRENO_REGISTER_MAX] = { REG_ADRENO_DEFINE(REG_ADRENO_CP_RB_BASE, REG_AXXX_CP_RB_BASE), @@ -453,6 +466,8 @@ static const struct adreno_gpu_funcs funcs = { #ifdef CONFIG_DEBUG_FS .show = a3xx_show, #endif + .gpu_state_get = a3xx_gpu_state_get, + .gpu_state_put = adreno_gpu_state_put, }, }; diff --git a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c index 16d3d596638e20477112a835a9a545d264623b23..17e97ebc10774ca3d405381b4e99f794a0096f91 100644 --- a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c @@ -465,6 +465,18 @@ static void a4xx_show(struct msm_gpu *gpu, struct seq_file *m) } #endif +static struct msm_gpu_state *a4xx_gpu_state_get(struct msm_gpu *gpu) +{ + struct msm_gpu_state *state = adreno_gpu_state_get(gpu); + + if (IS_ERR(state)) + return state; + + state->rbbm_status = gpu_read(gpu, REG_A4XX_RBBM_STATUS); + + return state; +} + /* Register offset defines for A4XX, in order of enum adreno_regs */ static const unsigned int a4xx_register_offsets[REG_ADRENO_REGISTER_MAX] = { REG_ADRENO_DEFINE(REG_ADRENO_CP_RB_BASE, REG_A4XX_CP_RB_BASE), @@ -541,6 +553,8 @@ static const struct adreno_gpu_funcs funcs = { #ifdef CONFIG_DEBUG_FS .show = a4xx_show, #endif + .gpu_state_get = a4xx_gpu_state_get, + .gpu_state_put = adreno_gpu_state_put, }, .get_timestamp = a4xx_get_timestamp, }; diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c index d39400e5bc42907866b4cf7d734ee7f6118c5399..9e85e4f7016d0cc7dee39204ed1be0b34082ec81 100644 --- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c @@ -1195,6 +1195,26 @@ static int a5xx_get_timestamp(struct msm_gpu *gpu, uint64_t *value) return 0; } +static struct msm_gpu_state *a5xx_gpu_state_get(struct msm_gpu *gpu) +{ + struct msm_gpu_state *state; + + /* + * Temporarily disable hardware clock gating before going into + * adreno_show to avoid issues while reading the registers + */ + a5xx_set_hwcg(gpu, false); + + state = adreno_gpu_state_get(gpu); + + if (!IS_ERR(state)) + state->rbbm_status = gpu_read(gpu, REG_A5XX_RBBM_STATUS); + + a5xx_set_hwcg(gpu, true); + + return state; +} + #ifdef CONFIG_DEBUG_FS static void a5xx_show(struct msm_gpu *gpu, struct seq_file *m) { @@ -1244,6 +1264,8 @@ static const struct adreno_gpu_funcs funcs = { .debugfs_init = a5xx_debugfs_init, #endif .gpu_busy = a5xx_gpu_busy, + .gpu_state_get = a5xx_gpu_state_get, + .gpu_state_put = adreno_gpu_state_put, }, .get_timestamp = a5xx_get_timestamp, }; diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index bcbf9f2a29f9c5f86bd960c5f5b1a1cefc6b4971..4286a539f40aaa0af1283214a8078820d5c8bb56 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -368,6 +368,61 @@ bool adreno_idle(struct msm_gpu *gpu, struct msm_ringbuffer *ring) return false; } +struct msm_gpu_state *adreno_gpu_state_get(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct msm_gpu_state *state; + int i, count = 0; + + state = kzalloc(sizeof(*state), GFP_KERNEL); + if (!state) + return ERR_PTR(-ENOMEM); + + do_gettimeofday(&state->time); + + for (i = 0; i < gpu->nr_rings; i++) { + state->ring[i].fence = gpu->rb[i]->memptrs->fence; + state->ring[i].iova = gpu->rb[i]->iova; + state->ring[i].seqno = gpu->rb[i]->seqno; + state->ring[i].rptr = get_rptr(adreno_gpu, gpu->rb[i]); + state->ring[i].wptr = get_wptr(gpu->rb[i]); + } + + /* Count the number of registers */ + for (i = 0; adreno_gpu->registers[i] != ~0; i += 2) + count += adreno_gpu->registers[i + 1] - + adreno_gpu->registers[i] + 1; + + state->registers = kcalloc(count * 2, sizeof(u32), GFP_KERNEL); + if (state->registers) { + int pos = 0; + + for (i = 0; adreno_gpu->registers[i] != ~0; i += 2) { + u32 start = adreno_gpu->registers[i]; + u32 end = adreno_gpu->registers[i + 1]; + u32 addr; + + for (addr = start; addr <= end; addr++) { + state->registers[pos++] = addr; + state->registers[pos++] = gpu_read(gpu, addr); + } + } + + state->nr_registers = count; + } + + return state; +} + +void adreno_gpu_state_put(struct msm_gpu_state *state) +{ + if (IS_ERR_OR_NULL(state)) + return; + + kfree(state->registers); + kfree(state); +} + #ifdef CONFIG_DEBUG_FS void adreno_show(struct msm_gpu *gpu, struct seq_file *m) { diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h index bc9ec27e9ed853c51e35c655a7e39bfb26ec2aa4..734e31a9631fc5387e96ce9c9b909d02c529e4d3 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h @@ -229,6 +229,9 @@ int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev, void adreno_gpu_cleanup(struct adreno_gpu *gpu); +struct msm_gpu_state *adreno_gpu_state_get(struct msm_gpu *gpu); +void adreno_gpu_state_put(struct msm_gpu_state *state); + /* ringbuffer helpers (the parts that are adreno specific) */ static inline void diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h index b8241179175a2ca523b259777c481f53a460f2f9..de71cc04ecf3486b88f550e280676ec17709e764 100644 --- a/drivers/gpu/drm/msm/msm_gpu.h +++ b/drivers/gpu/drm/msm/msm_gpu.h @@ -27,6 +27,7 @@ struct msm_gem_submit; struct msm_gpu_perfcntr; +struct msm_gpu_state; struct msm_gpu_config { const char *ioname; @@ -69,6 +70,8 @@ struct msm_gpu_funcs { int (*debugfs_init)(struct msm_gpu *gpu, struct drm_minor *minor); #endif int (*gpu_busy)(struct msm_gpu *gpu, uint64_t *value); + struct msm_gpu_state *(*gpu_state_get)(struct msm_gpu *gpu); + void (*gpu_state_put)(struct msm_gpu_state *state); }; struct msm_gpu { @@ -175,6 +178,23 @@ struct msm_gpu_submitqueue { struct kref ref; }; +struct msm_gpu_state { + struct timeval time; + + struct { + u64 iova; + u32 fence; + u32 seqno; + u32 rptr; + u32 wptr; + } ring[MSM_GPU_MAX_RINGS]; + + int nr_registers; + u32 *registers; + + u32 rbbm_status; +}; + static inline void gpu_write(struct msm_gpu *gpu, u32 reg, u32 data) { msm_writel(data, gpu->mmio + (reg << 2));