drm/amd: Avoid evicting resources at S5

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>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 81a48b3..0fdfde3 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -5072,6 +5072,10 @@ 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");