drm/msm/adreno: Remove redundant gmem size param

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>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/549759/

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);
 

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) ||

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);

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;
 

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;