drm/amd: Avoid evicting resources at S5

[ Upstream commit 531df041f2a5296174abd8292d298eb62fe1ea97 ]

Normally resources are evicted on dGPUs at suspend or hibernate and
on APUs at hibernate.  These steps are unnecessary when using the S4
callbacks to put the system into S5.

Cc: AceLan Kao <acelan.kao@canonical.com>
Cc: Kai-Heng Feng <kaihengf@nvidia.com>
Cc: Mark Pearson <mpearson-lenovo@squebb.ca>
Cc: Denis Benato <benato.denis96@gmail.com>
Cc: Merthan Karakaş <m3rthn.k@gmail.com>
Tested-by: Eric Naim <dnaim@cachyos.org>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 56a737df87cc71154cc4e520db1e1c0c3740911e..1115af343e01351fdd41deaa9f0f47826990f2c8 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -5016,6 +5016,10 @@ static int amdgpu_device_evict_resources(struct amdgpu_device *adev)
        if (!adev->in_s4 && (adev->flags & AMD_IS_APU))
                return 0;
 
+       /* No need to evict when going to S5 through S4 callbacks */
+       if (system_state == SYSTEM_POWER_OFF)
+               return 0;
+
        ret = amdgpu_ttm_evict_resources(adev, TTM_PL_VRAM);
        if (ret) {
                dev_warn(adev->dev, "evicting device resources failed\n");