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| author | Mario Limonciello <mario.limonciello@amd.com> | 2024-11-28 06:26:56 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-12-10 18:26:50 +0300 |
| commit | 2965e6355dcdf157b5fafa25a2715f00064da8bf (patch) | |
| tree | d7e0522da28dfc488cf35d79940df3f8a949e724 /drivers/gpu/drm/amd/amdgpu/amdgpu.h | |
| parent | aaf69c606f0865c8ad3571e1725372f21b5ad97a (diff) | |
| download | linux-2965e6355dcdf157b5fafa25a2715f00064da8bf.tar.xz | |
drm/amd: Add Suspend/Hibernate notification callback support
As part of the suspend sequence VRAM needs to be evicted on dGPUs.
In order to make suspend/resume more reliable we moved this into
the pmops prepare() callback so that the suspend sequence would fail
but the system could remain operational under high memory usage suspend.
Another class of issues exist though where due to memory fragementation
there isn't a large enough contiguous space and swap isn't accessible.
Add support for a suspend/hibernate notification callback that could
evict VRAM before tasks are frozen. This should allow paging out to swap
if necessary.
Link: https://github.com/ROCm/ROCK-Kernel-Driver/issues/174
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/3476
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/2362
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3781
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Link: https://lore.kernel.org/r/20241128032656.2090059-2-superm1@kernel.org
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 4653a8d2823a..9f5351c013ff 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -880,6 +880,7 @@ struct amdgpu_device { bool need_swiotlb; bool accel_working; struct notifier_block acpi_nb; + struct notifier_block pm_nb; struct amdgpu_i2c_chan *i2c_bus[AMDGPU_MAX_I2C_BUS]; struct debugfs_blob_wrapper debugfs_vbios_blob; struct debugfs_blob_wrapper debugfs_discovery_blob; |