diff options
| author | Huacai Chen <chenhuacai@loongson.cn> | 2023-05-08 11:09:41 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 09:36:48 -0400 |
| commit | 9a06655e73834819149466ae8170ffe53b23e6f8 (patch) | |
| tree | a70c6b33d6853cad173c2c091f69bb8a6f097f1a | |
| parent | c488a9370d5a1da71f7683e0d6da40a2ab0f1be3 (diff) | |
drm/amdgpu/display: Enable DC_FP for LoongArch
LoongArch now provides kernel_fpu_begin() and kernel_fpu_end() that are
used like the x86 counterparts in commit 2b3bd32ea3a22ea2d ("LoongArch:
Provide kernel fpu functions"), so we can enable DC_FP on LoongArch for
supporting more DCN devices.
Signed-off-by: WANG Xuerui <kernel@xen0n.name>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/Makefile | 5 |
3 files changed, 10 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/Kconfig b/drivers/gpu/drm/amd/display/Kconfig index 06b438217c61..b015c7d19531 100644 --- a/drivers/gpu/drm/amd/display/Kconfig +++ b/drivers/gpu/drm/amd/display/Kconfig @@ -8,7 +8,7 @@ config DRM_AMD_DC depends on BROKEN || !CC_IS_CLANG || X86_64 || SPARC64 || ARM64 select SND_HDA_COMPONENT if SND_HDA_CORE # !CC_IS_CLANG: https://github.com/ClangBuiltLinux/linux/issues/1752 - select DRM_AMD_DC_FP if (X86 || PPC64 || (ARM64 && KERNEL_MODE_NEON && !CC_IS_CLANG)) + select DRM_AMD_DC_FP if (X86 || LOONGARCH || PPC64 || (ARM64 && KERNEL_MODE_NEON && !CC_IS_CLANG)) help Choose this option if you want to use the new display engine support for AMDGPU. This adds required support for Vega and diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c b/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c index c42aa947c969..172aa10a8800 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c @@ -33,6 +33,8 @@ #include <asm/cputable.h> #elif defined(CONFIG_ARM64) #include <asm/neon.h> +#elif defined(CONFIG_LOONGARCH) +#include <asm/fpu.h> #endif /** @@ -88,7 +90,7 @@ void dc_fpu_begin(const char *function_name, const int line) *pcpu += 1; if (*pcpu == 1) { -#if defined(CONFIG_X86) +#if defined(CONFIG_X86) || defined(CONFIG_LOONGARCH) migrate_disable(); kernel_fpu_begin(); #elif defined(CONFIG_PPC64) @@ -128,7 +130,7 @@ void dc_fpu_end(const char *function_name, const int line) pcpu = get_cpu_ptr(&fpu_recursion_depth); *pcpu -= 1; if (*pcpu <= 0) { -#if defined(CONFIG_X86) +#if defined(CONFIG_X86) || defined(CONFIG_LOONGARCH) kernel_fpu_end(); migrate_enable(); #elif defined(CONFIG_PPC64) diff --git a/drivers/gpu/drm/amd/display/dc/dml/Makefile b/drivers/gpu/drm/amd/display/dc/dml/Makefile index 01db035589c5..77cf5545c94c 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/Makefile +++ b/drivers/gpu/drm/amd/display/dc/dml/Makefile @@ -38,6 +38,11 @@ ifdef CONFIG_ARM64 dml_rcflags := -mgeneral-regs-only endif +ifdef CONFIG_LOONGARCH +dml_ccflags := -mfpu=64 +dml_rcflags := -msoft-float +endif + ifdef CONFIG_CC_IS_GCC ifneq ($(call gcc-min-version, 70100),y) IS_OLD_GCC = 1 |