[PATCH v2 02/13] drm/msm/adreno: Remove redundant gmem size param

Rob Clark
2023-07-27T21:23:10Z

Even in the ocmem case, the allocated ocmem buffer size should match the
requested size.

v2: Move stray hunk to previous patch, make OCMEM size mismatch an error
condition.

Signed-off-by: Rob Clark <robdclark@chromium.org>
---
drivers/gpu/drm/msm/adreno/a2xx_gpu.c | 2 +-
drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 2 +-
drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 2 +-
drivers/gpu/drm/msm/adreno/adreno_gpu.c | 9 +++++----
drivers/gpu/drm/msm/adreno/adreno_gpu.h | 1 -
5 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a2xx_gpu.c b/drivers/gpu/drm/msm/adreno/a2xx_gpu.c
index c67089a7ebc1..50ee03bc94b4 100644
--- a/drivers/gpu/drm/msm/adreno/a2xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a2xx_gpu.c
@@ -205,7 +205,7 @@ static int a2xx_hw_init(struct msm_gpu *gpu)
A2XX_MH_INTERRUPT_MASK_MMU_PAGE_FAULT);

for (i = 3; i <= 5; i++)
- if ((SZ_16K << i) == adreno_gpu->gmem)
+ if ((SZ_16K << i) == adreno_gpu->info->gmem)
break;
gpu_write(gpu, REG_A2XX_RB_EDRAM_INFO, i);

diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
index a99310b68793..f0803e94ebe5 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
@@ -749,7 +749,7 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
gpu_write(gpu, REG_A5XX_UCHE_GMEM_RANGE_MIN_LO, 0x00100000);
gpu_write(gpu, REG_A5XX_UCHE_GMEM_RANGE_MIN_HI, 0x00000000);
gpu_write(gpu, REG_A5XX_UCHE_GMEM_RANGE_MAX_LO,
- 0x00100000 + adreno_gpu->gmem - 1);
+ 0x00100000 + adreno_gpu->info->gmem - 1);
gpu_write(gpu, REG_A5XX_UCHE_GMEM_RANGE_MAX_HI, 0x00000000);

if (adreno_is_a506(adreno_gpu) || adreno_is_a508(adreno_gpu) ||
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index b3ada1e7b598..edbade75020f 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -1270,7 +1270,7 @@ static int hw_init(struct msm_gpu *gpu)
gpu_write64(gpu, REG_A6XX_UCHE_GMEM_RANGE_MIN, 0x00100000);

gpu_write64(gpu, REG_A6XX_UCHE_GMEM_RANGE_MAX,
- 0x00100000 + adreno_gpu->gmem - 1);
+ 0x00100000 + adreno_gpu->info->gmem - 1);
}

gpu_write(gpu, REG_A6XX_UCHE_FILTER_CNTL, 0x804);
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index e3cd9ff6ff1d..ef98d51d237f 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -320,7 +320,7 @@ int adreno_get_param(struct msm_gpu *gpu, struct msm_file_private *ctx,
*value = adreno_gpu->info->revn;
return 0;
case MSM_PARAM_GMEM_SIZE:
- *value = adreno_gpu->gmem;
+ *value = adreno_gpu->info->gmem;
return 0;
case MSM_PARAM_GMEM_BASE:
*value = !adreno_is_a650_family(adreno_gpu) ? 0x100000 : 0;
@@ -1041,14 +1041,16 @@ int adreno_gpu_ocmem_init(struct device *dev, struct adreno_gpu *adreno_gpu,
return PTR_ERR(ocmem);
}

- ocmem_hdl = ocmem_allocate(ocmem, OCMEM_GRAPHICS, adreno_gpu->gmem);
+ ocmem_hdl = ocmem_allocate(ocmem, OCMEM_GRAPHICS, adreno_gpu->info->gmem);
if (IS_ERR(ocmem_hdl))
return PTR_ERR(ocmem_hdl);

adreno_ocmem->ocmem = ocmem;
adreno_ocmem->base = ocmem_hdl->addr;
adreno_ocmem->hdl = ocmem_hdl;
- adreno_gpu->gmem = ocmem_hdl->len;
+
+ if (WARN_ON(ocmem_hdl->len != adreno_gpu->info->gmem))
+ return -ENOMEM;

return 0;
}
@@ -1097,7 +1099,6 @@ int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev,

adreno_gpu->funcs = funcs;
adreno_gpu->info = adreno_info(config->rev);
- adreno_gpu->gmem = adreno_gpu->info->gmem;
adreno_gpu->revn = adreno_gpu->info->revn;
adreno_gpu->rev = *rev;

diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
index 6830c3776c2d..aaf09c642dc6 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
@@ -77,7 +77,6 @@ struct adreno_gpu {
struct msm_gpu base;
struct adreno_rev rev;
const struct adreno_info *info;
- uint32_t gmem; /* actual gmem size */
uint32_t revn; /* numeric revision name */
uint16_t speedbin;
const struct adreno_gpu_funcs *funcs;
--
2.41.0