drm/amdgpu: do not resume device in thaw for normal hibernation

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For normal hibernation, GPU do not need to be resumed in thaw since it is
not involved in writing the hibernation image. Skip resume in this case
can reduce the hibernation time.

On VM with 8 * 192GB VRAM dGPUs, 98% VRAM usage and 1.7TB system memory,
this can save 50 minutes.

Signed-off-by: Samuel Zhang <guoqing.zhang@amd.com>
Tested-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Link: https://lore.kernel.org/r/20250710062313.3226149-6-guoqing.zhang@amd.com
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>

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Samuel Zhang 2025-07-10 14:23:13 +08:00 • committed by Mario Limonciello

parent c2aaddbd2d

commit 530694f54d

1 changed files with 17 additions and 0 deletions

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drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c

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