diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4548-drm-amdgpu-add-helpers-for-baco-entry-and-exit.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4548-drm-amdgpu-add-helpers-for-baco-entry-and-exit.patch | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4548-drm-amdgpu-add-helpers-for-baco-entry-and-exit.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4548-drm-amdgpu-add-helpers-for-baco-entry-and-exit.patch new file mode 100644 index 00000000..59ef9498 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4548-drm-amdgpu-add-helpers-for-baco-entry-and-exit.patch @@ -0,0 +1,106 @@ +From f98544ea9af75cdf57211c6a55b63dcf1ffeb999 Mon Sep 17 00:00:00 2001 +From: Alex Deucher <alexander.deucher@amd.com> +Date: Fri, 4 Oct 2019 12:33:09 -0500 +Subject: [PATCH 4548/4736] drm/amdgpu: add helpers for baco entry and exit + +BACO - Bus Active, Chip Off + +Will be used for runtime pm. Entry will enter the BACO +state (chip off). Exit will exit the BACO state (chip on). + +Change-Id: I051a4b9996af9ee7c7639be65fbd5009a4379ab3 +Reviewed-by: Evan Quan <evan.quan@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +Signed-off-by: Rahul Kumar <rahul.kumar1@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/amdgpu.h | 3 +- + drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 62 ++++++++++++++++++++++ + 2 files changed, 64 insertions(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h +index e0423a9efe14..9679649082cb 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h +@@ -1192,7 +1192,8 @@ bool amdgpu_device_supports_boco(struct drm_device *dev); + bool amdgpu_device_supports_baco(struct drm_device *dev); + bool amdgpu_device_is_peer_accessible(struct amdgpu_device *adev, + struct amdgpu_device *peer_adev); +- ++int amdgpu_device_baco_enter(struct drm_device *dev); ++int amdgpu_device_baco_exit(struct drm_device *dev); + /* atpx handler */ + #if defined(CONFIG_VGA_SWITCHEROO) + void amdgpu_register_atpx_handler(void); +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +index ac0dd28ca0a1..ebdf775ab9b0 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +@@ -4333,3 +4333,65 @@ bool amdgpu_device_is_peer_accessible(struct amdgpu_device *adev, + !(adev->gmc.aper_base & address_mask || + aper_limit & address_mask); + } ++ ++int amdgpu_device_baco_enter(struct drm_device *dev) ++{ ++ struct amdgpu_device *adev = dev->dev_private; ++ ++ if (!amdgpu_device_supports_baco(adev->ddev)) ++ return -ENOTSUPP; ++ ++ if (is_support_sw_smu(adev)) { ++ struct smu_context *smu = &adev->smu; ++ int ret; ++ ++ ret = smu_baco_enter(smu); ++ if (ret) ++ return ret; ++ ++ return 0; ++ } else { ++ void *pp_handle = adev->powerplay.pp_handle; ++ const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs; ++ ++ if (!pp_funcs ||!pp_funcs->get_asic_baco_state ||!pp_funcs->set_asic_baco_state) ++ return -ENOENT; ++ ++ /* enter BACO state */ ++ if (pp_funcs->set_asic_baco_state(pp_handle, 1)) ++ return -EIO; ++ ++ return 0; ++ } ++} ++ ++int amdgpu_device_baco_exit(struct drm_device *dev) ++{ ++ struct amdgpu_device *adev = dev->dev_private; ++ ++ if (!amdgpu_device_supports_baco(adev->ddev)) ++ return -ENOTSUPP; ++ ++ if (is_support_sw_smu(adev)) { ++ struct smu_context *smu = &adev->smu; ++ int ret; ++ ++ ret = smu_baco_exit(smu); ++ if (ret) ++ return ret; ++ ++ return 0; ++ } else { ++ void *pp_handle = adev->powerplay.pp_handle; ++ const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs; ++ ++ if (!pp_funcs ||!pp_funcs->get_asic_baco_state ||!pp_funcs->set_asic_baco_state) ++ return -ENOENT; ++ ++ /* exit BACO state */ ++ if (pp_funcs->set_asic_baco_state(pp_handle, 0)) ++ return -EIO; ++ ++ return 0; ++ } ++} +-- +2.17.1 + |