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Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4335-drm-amdgpu-change-pstate-only-after-all-XGMI-device-.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4335-drm-amdgpu-change-pstate-only-after-all-XGMI-device-.patch | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4335-drm-amdgpu-change-pstate-only-after-all-XGMI-device-.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4335-drm-amdgpu-change-pstate-only-after-all-XGMI-device-.patch new file mode 100644 index 00000000..57eebf50 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4335-drm-amdgpu-change-pstate-only-after-all-XGMI-device-.patch @@ -0,0 +1,52 @@ +From 911f01258c9fe327b6f6afbf77c693ad5c143505 Mon Sep 17 00:00:00 2001 +From: Evan Quan <evan.quan@amd.com> +Date: Thu, 31 Oct 2019 14:10:27 +0800 +Subject: [PATCH 4335/4736] drm/amdgpu: change pstate only after all XGMI + device initialized + +Pstate settings should be performed after all device of the +XGMI setup get initialized. + +Change-Id: I5c4b3f79fbd60a5ccfb4dc6f94d9e1db6faec694 +Signed-off-by: Evan Quan <evan.quan@amd.com> +Reviewed-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 15 ++++++++++++--- + 1 file changed, 12 insertions(+), 3 deletions(-) + +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +index 8e35ebdf4e10..beeae2573cb0 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +@@ -2082,9 +2082,6 @@ static int amdgpu_device_ip_late_init(struct amdgpu_device *adev) + if (r) + DRM_ERROR("enable mgpu fan boost failed (%d).\n", r); + +- /* set to low pstate by default */ +- amdgpu_xgmi_set_pstate(adev, 0); +- + return 0; + } + +@@ -2196,6 +2193,18 @@ static void amdgpu_device_delayed_init_work_handler(struct work_struct *work) + r = amdgpu_ib_ring_tests(adev); + if (r) + DRM_ERROR("ib ring test failed (%d).\n", r); ++ ++ /* ++ * set to low pstate by default ++ * This should be performed after all devices from ++ * XGMI finish their initializations. Thus it's moved ++ * to here. ++ * The time delay is 2S. TODO: confirm whether that ++ * is enough for all possible XGMI setups. ++ */ ++ r = amdgpu_xgmi_set_pstate(adev, 0); ++ if (r) ++ DRM_ERROR("pstate setting failed (%d).\n", r); + } + + static void amdgpu_device_delay_enable_gfx_off(struct work_struct *work) +-- +2.17.1 + |