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[83.9.30.82]) by smtp.gmail.com with ESMTPSA id m25-20020a056512015900b004fb86c89fa1sm753363lfo.135.2023.06.28.13.35.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Jun 2023 13:35:40 -0700 (PDT) From: Konrad Dybcio Date: Wed, 28 Jun 2023 22:35:10 +0200 Subject: [PATCH 10/14] drm/msm/a6xx: Mostly implement A7xx gpu_state MIME-Version: 1.0 Message-Id: <20230628-topic-a7xx_drmmsm-v1-10-a7f4496e0c12@linaro.org> References: <20230628-topic-a7xx_drmmsm-v1-0-a7f4496e0c12@linaro.org> In-Reply-To: <20230628-topic-a7xx_drmmsm-v1-0-a7f4496e0c12@linaro.org> To: Rob Clark , Abhinav Kumar , Dmitry Baryshkov , Sean Paul , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Marijn Suijten , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Konrad Dybcio X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1687984524; l=6928; i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id; bh=JfANdNqbXqvpk3LICZmqHJzUXQO4R9kWuTFjDFe+5sk=; b=fOfjDxb/+o9s8svWZ6xC2Mw8u+laHAhP0rgjA/pC9EY4AwhIf+6xbdTSy3KjUgVmVF1f1Nmpw kmuRbpyngNvC9vMiaSWGG6yDisALj/VCZS7jJ/+t31zTwNMyckn+YMz X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Provide the necessary alternations to mostly support state dumping on A7xx. Newer GPUs will probably require more changes here. Crashdumper and debugbus remain untested. Signed-off-by: Konrad Dybcio --- drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c | 52 +++++++++++++++++++++++- drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h | 61 ++++++++++++++++++++++++++++- 2 files changed, 110 insertions(+), 3 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); /* diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h index 790f55e24533..12c13226819a 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h @@ -338,6 +338,28 @@ static const struct a6xx_registers a6xx_vbif_reglist = static const struct a6xx_registers a6xx_gbif_reglist = REGS(a6xx_gbif_registers, 0, 0); +static const u32 a7xx_ahb_registers[] = { + /* RBBM_STATUS */ + 0x210, 0x210, + /* RBBM_STATUS2-3 */ + 0x212, 0x213, +}; + +static const u32 a7xx_gbif_registers[] = { + 0x3c00, 0x3c0b, + 0x3c40, 0x3c42, + 0x3c45, 0x3c47, + 0x3c49, 0x3c4a, + 0x3cc0, 0x3cd1, +}; + +static const struct a6xx_registers a7xx_ahb_reglist[] = { + REGS(a7xx_ahb_registers, 0, 0), +}; + +static const struct a6xx_registers a7xx_gbif_reglist = + REGS(a7xx_gbif_registers, 0, 0); + static const u32 a6xx_gmu_gx_registers[] = { /* GMU GX */ 0x0000, 0x0000, 0x0010, 0x0013, 0x0016, 0x0016, 0x0018, 0x001b, @@ -384,14 +406,17 @@ static const struct a6xx_registers a6xx_gmu_reglist[] = { }; static u32 a6xx_get_cp_roq_size(struct msm_gpu *gpu); +static u32 a7xx_get_cp_roq_size(struct msm_gpu *gpu); -static struct a6xx_indexed_registers { +struct a6xx_indexed_registers { const char *name; u32 addr; u32 data; u32 count; u32 (*count_fn)(struct msm_gpu *gpu); -} a6xx_indexed_reglist[] = { +}; + +static struct a6xx_indexed_registers a6xx_indexed_reglist[] = { { "CP_SQE_STAT", REG_A6XX_CP_SQE_STAT_ADDR, REG_A6XX_CP_SQE_STAT_DATA, 0x33, NULL }, { "CP_DRAW_STATE", REG_A6XX_CP_DRAW_STATE_ADDR, @@ -402,11 +427,43 @@ static struct a6xx_indexed_registers { REG_A6XX_CP_ROQ_DBG_DATA, 0, a6xx_get_cp_roq_size}, }; +static struct a6xx_indexed_registers a7xx_indexed_reglist[] = { + { "CP_SQE_STAT", REG_A6XX_CP_SQE_STAT_ADDR, + REG_A6XX_CP_SQE_STAT_DATA, 0x33, NULL }, + { "CP_DRAW_STATE", REG_A6XX_CP_DRAW_STATE_ADDR, + REG_A6XX_CP_DRAW_STATE_DATA, 0x100, NULL }, + { "CP_UCODE_DBG_DATA", REG_A6XX_CP_SQE_UCODE_DBG_ADDR, + REG_A6XX_CP_SQE_UCODE_DBG_DATA, 0x8000, NULL }, + { "CP_BV_SQE_STAT_ADDR", REG_A7XX_CP_BV_SQE_STAT_ADDR, + REG_A7XX_CP_BV_SQE_STAT_DATA, 0x33, NULL }, + { "CP_BV_DRAW_STATE_ADDR", REG_A7XX_CP_BV_DRAW_STATE_ADDR, + REG_A7XX_CP_BV_DRAW_STATE_DATA, 0x100, NULL }, + { "CP_BV_SQE_UCODE_DBG_ADDR", REG_A7XX_CP_BV_SQE_UCODE_DBG_ADDR, + REG_A7XX_CP_BV_SQE_UCODE_DBG_DATA, 0x8000, NULL }, + { "CP_SQE_AC_STAT_ADDR", REG_A7XX_CP_SQE_AC_STAT_ADDR, + REG_A7XX_CP_SQE_AC_STAT_DATA, 0x33, NULL }, + { "CP_LPAC_DRAW_STATE_ADDR", REG_A7XX_CP_LPAC_DRAW_STATE_ADDR, + REG_A7XX_CP_LPAC_DRAW_STATE_DATA, 0x100, NULL }, + { "CP_SQE_AC_UCODE_DBG_ADDR", REG_A7XX_CP_SQE_AC_UCODE_DBG_ADDR, + REG_A7XX_CP_SQE_AC_UCODE_DBG_DATA, 0x8000, NULL }, + { "CP_LPAC_FIFO_DBG_ADDR", REG_A7XX_CP_LPAC_FIFO_DBG_ADDR, + REG_A7XX_CP_LPAC_FIFO_DBG_DATA, 0x40, NULL }, + { "CP_ROQ", REG_A6XX_CP_ROQ_DBG_ADDR, + REG_A6XX_CP_ROQ_DBG_DATA, 0, a7xx_get_cp_roq_size }, +}; + static struct a6xx_indexed_registers a6xx_cp_mempool_indexed = { "CP_MEMPOOL", REG_A6XX_CP_MEM_POOL_DBG_ADDR, REG_A6XX_CP_MEM_POOL_DBG_DATA, 0x2060, NULL, }; +static struct a6xx_indexed_registers a7xx_cp_bv_mempool_indexed[] = { + { "CP_MEMPOOL", REG_A6XX_CP_MEM_POOL_DBG_ADDR, + REG_A6XX_CP_MEM_POOL_DBG_DATA, 0x2100, NULL }, + { "CP_BV_MEMPOOL", REG_A7XX_CP_BV_MEM_POOL_DBG_ADDR, + REG_A7XX_CP_BV_MEM_POOL_DBG_DATA, 0x2100, NULL }, +}; + #define DEBUGBUS(_id, _count) { .id = _id, .name = #_id, .count = _count } static const struct a6xx_debugbus_block {