diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/4814-drm-amdgpu-Add-stutter-mode-ctrl-in-module-parameter.patch')
-rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/4814-drm-amdgpu-Add-stutter-mode-ctrl-in-module-parameter.patch | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/4814-drm-amdgpu-Add-stutter-mode-ctrl-in-module-parameter.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/4814-drm-amdgpu-Add-stutter-mode-ctrl-in-module-parameter.patch new file mode 100644 index 00000000..18a20bcd --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/4814-drm-amdgpu-Add-stutter-mode-ctrl-in-module-parameter.patch @@ -0,0 +1,53 @@ +From ed7b9cb95c7bdabdefae263ca25084a48a3e6bc2 Mon Sep 17 00:00:00 2001 +From: rex zhu <rex.zhu@amd.com> +Date: Wed, 27 Jun 2018 18:08:43 +0800 +Subject: [PATCH 4814/5725] drm/amdgpu: Add stutter mode ctrl in module + parameter + +Enable stutter mode can save power in low DRAM use cases +including but not limited to productivity application use, +web browsing, and video playback. + +Currently this feature is disabled by default. + +Make bit 17 in module parameter amdgpu_pp_feature_mask +as stutter mode mask, so user can enable/disable this feature easily. + +Reviewed-by: Alex Deucher <alexander.deucher@amd.com> +Reviewed-by: Huang Rui <ray.huang@amd.com> +Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 3 ++- + drivers/gpu/drm/amd/include/amd_shared.h | 1 + + 2 files changed, 3 insertions(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +index b9b9850..19f1a74 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +@@ -125,7 +125,8 @@ uint amdgpu_pg_mask = 0xffffffff; + uint amdgpu_sdma_phase_quantum = 32; + char *amdgpu_disable_cu = NULL; + char *amdgpu_virtual_display = NULL; +-uint amdgpu_pp_feature_mask = 0xffff3fff; /* gfxoff (bit 15) disabled by default */ ++/* OverDrive(bit 14),gfxoff(bit 15),stutter mode(bit 17) disabled by default*/ ++uint amdgpu_pp_feature_mask = 0xfffd3fff; + int amdgpu_ngg = 0; + int amdgpu_prim_buf_per_se = 0; + int amdgpu_pos_buf_per_se = 0; +diff --git a/drivers/gpu/drm/amd/include/amd_shared.h b/drivers/gpu/drm/amd/include/amd_shared.h +index 0c30256..91459a6 100644 +--- a/drivers/gpu/drm/amd/include/amd_shared.h ++++ b/drivers/gpu/drm/amd/include/amd_shared.h +@@ -128,6 +128,7 @@ enum PP_FEATURE_MASK { + PP_OVERDRIVE_MASK = 0x4000, + PP_GFXOFF_MASK = 0x8000, + PP_ACG_MASK = 0x10000, ++ PP_STUTTER_MODE = 0x20000, + }; + + struct amd_ip_funcs { +-- +2.7.4 + |