From: Ariel D'Alessandro Date: Mon, 24 Mar 2025 18:57:57 +0000 (-0300) Subject: drm/panfrost: Use GPU_MMU_FEATURES_VA_BITS/PA_BITS macros X-Git-Tag: v6.16-rc1~144^2~21^2~96 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=0b9bcf9a762e7bdb022e6428096a83d92bb90b27;p=thirdparty%2Flinux.git drm/panfrost: Use GPU_MMU_FEATURES_VA_BITS/PA_BITS macros As done in panthor, define and use these GPU_MMU_FEATURES_* macros, which makes code easier to read and reuse. Signed-off-by: Ariel D'Alessandro Reviewed-by: Boris Brezillon Reviewed-by: Steven Price Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Adrián Larumbe Signed-off-by: Steven Price Link: https://lore.kernel.org/r/20250324185801.168664-3-ariel.dalessandro@collabora.com --- diff --git a/drivers/gpu/drm/panfrost/panfrost_mmu.c b/drivers/gpu/drm/panfrost/panfrost_mmu.c index d5c136bb64ec1..fb2ae35680270 100644 --- a/drivers/gpu/drm/panfrost/panfrost_mmu.c +++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c @@ -615,6 +615,8 @@ static void panfrost_drm_mm_color_adjust(const struct drm_mm_node *node, struct panfrost_mmu *panfrost_mmu_ctx_create(struct panfrost_device *pfdev) { + u32 va_bits = GPU_MMU_FEATURES_VA_BITS(pfdev->features.mmu_features); + u32 pa_bits = GPU_MMU_FEATURES_PA_BITS(pfdev->features.mmu_features); struct panfrost_mmu *mmu; mmu = kzalloc(sizeof(*mmu), GFP_KERNEL); @@ -633,8 +635,8 @@ struct panfrost_mmu *panfrost_mmu_ctx_create(struct panfrost_device *pfdev) mmu->pgtbl_cfg = (struct io_pgtable_cfg) { .pgsize_bitmap = SZ_4K | SZ_2M, - .ias = FIELD_GET(0xff, pfdev->features.mmu_features), - .oas = FIELD_GET(0xff00, pfdev->features.mmu_features), + .ias = va_bits, + .oas = pa_bits, .coherent_walk = pfdev->coherent, .tlb = &mmu_tlb_ops, .iommu_dev = pfdev->dev, diff --git a/drivers/gpu/drm/panfrost/panfrost_regs.h b/drivers/gpu/drm/panfrost/panfrost_regs.h index c7bba476ab3f3..b5f279a19a084 100644 --- a/drivers/gpu/drm/panfrost/panfrost_regs.h +++ b/drivers/gpu/drm/panfrost/panfrost_regs.h @@ -16,6 +16,8 @@ #define GROUPS_L2_COHERENT BIT(0) /* Cores groups are l2 coherent */ #define GPU_MMU_FEATURES 0x014 /* (RO) MMU features */ +#define GPU_MMU_FEATURES_VA_BITS(x) ((x) & GENMASK(7, 0)) +#define GPU_MMU_FEATURES_PA_BITS(x) (((x) >> 8) & GENMASK(7, 0)) #define GPU_AS_PRESENT 0x018 /* (RO) Address space slots present */ #define GPU_JS_PRESENT 0x01C /* (RO) Job slots present */