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| author | Konrad Dybcio <konrad.dybcio@linaro.org> | 2023-09-25 17:50:36 +0300 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2023-10-09 21:22:05 +0300 |
| commit | e997ae5f45caf7df08a421b1d1edac7a47d06890 (patch) | |
| tree | e27a7d5253698c182089294b3a170c04247868df /drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c | |
| parent | 88a0997f2f949f1f7076adeb5d4fa4d684cca5bf (diff) | |
| download | linux-e997ae5f45caf7df08a421b1d1edac7a47d06890.tar.xz | |
drm/msm/a6xx: Mostly implement A7xx gpu_state
Provide the necessary alternations to mostly support state dumping on
A7xx. Newer GPUs will probably require more changes here. Crashdumper
and debugbus remain untested.
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD
Tested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> # sm8450
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/559289/
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c | 52 |
1 files changed, 51 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c index 4e5d650578c6..18be2d3bde09 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c @@ -948,6 +948,18 @@ static u32 a6xx_get_cp_roq_size(struct msm_gpu *gpu) return gpu_read(gpu, REG_A6XX_CP_ROQ_THRESHOLDS_2) >> 14; } +static u32 a7xx_get_cp_roq_size(struct msm_gpu *gpu) +{ + /* + * The value at CP_ROQ_THRESHOLDS_2[20:31] is in 4dword units. + * That register however is not directly accessible from APSS on A7xx. + * Program the SQE_UCODE_DBG_ADDR with offset=0x70d3 and read the value. + */ + gpu_write(gpu, REG_A6XX_CP_SQE_UCODE_DBG_ADDR, 0x70d3); + + return 4 * (gpu_read(gpu, REG_A6XX_CP_SQE_UCODE_DBG_DATA) >> 20); +} + /* Read a block of data from an indexed register pair */ static void a6xx_get_indexed_regs(struct msm_gpu *gpu, struct a6xx_gpu_state *a6xx_state, @@ -1019,8 +1031,40 @@ static void a6xx_get_indexed_registers(struct msm_gpu *gpu, /* Restore the size in the hardware */ gpu_write(gpu, REG_A6XX_CP_MEM_POOL_SIZE, mempool_size); +} + +static void a7xx_get_indexed_registers(struct msm_gpu *gpu, + struct a6xx_gpu_state *a6xx_state) +{ + int i, indexed_count, mempool_count; + + indexed_count = ARRAY_SIZE(a7xx_indexed_reglist); + mempool_count = ARRAY_SIZE(a7xx_cp_bv_mempool_indexed); - a6xx_state->nr_indexed_regs = count; + a6xx_state->indexed_regs = state_kcalloc(a6xx_state, + indexed_count + mempool_count, + sizeof(*a6xx_state->indexed_regs)); + if (!a6xx_state->indexed_regs) + return; + + a6xx_state->nr_indexed_regs = indexed_count + mempool_count; + + /* First read the common regs */ + for (i = 0; i < indexed_count; i++) + a6xx_get_indexed_regs(gpu, a6xx_state, &a7xx_indexed_reglist[i], + &a6xx_state->indexed_regs[i]); + + gpu_rmw(gpu, REG_A6XX_CP_CHICKEN_DBG, 0, BIT(2)); + gpu_rmw(gpu, REG_A7XX_CP_BV_CHICKEN_DBG, 0, BIT(2)); + + /* Get the contents of the CP_BV mempool */ + for (i = 0; i < mempool_count; i++) + a6xx_get_indexed_regs(gpu, a6xx_state, a7xx_cp_bv_mempool_indexed, + &a6xx_state->indexed_regs[indexed_count - 1 + i]); + + gpu_rmw(gpu, REG_A6XX_CP_CHICKEN_DBG, BIT(2), 0); + gpu_rmw(gpu, REG_A7XX_CP_BV_CHICKEN_DBG, BIT(2), 0); + return; } struct msm_gpu_state *a6xx_gpu_state_get(struct msm_gpu *gpu) @@ -1056,6 +1100,12 @@ struct msm_gpu_state *a6xx_gpu_state_get(struct msm_gpu *gpu) return &a6xx_state->base; /* Get the banks of indexed registers */ + if (adreno_is_a7xx(adreno_gpu)) { + a7xx_get_indexed_registers(gpu, a6xx_state); + /* Further codeflow is untested on A7xx. */ + return &a6xx_state->base; + } + a6xx_get_indexed_registers(gpu, a6xx_state); /* |