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drm/amd: Flush GFXOFF requests in prepare stage

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BugLink: https://bugs.launchpad.net/bugs/2065400

[ Upstream commit ca299b4512d4b4f516732a48ce9aa19d91f4473e ]

If the system hasn't entered GFXOFF when suspend starts it can cause
hangs accessing GC and RLC during the suspend stage.

Cc: <stable@vger.kernel.org> # 6.1.y: 5095d54181 ("drm/amd: Evict resources during PM ops prepare() callback")
Cc: <stable@vger.kernel.org> # 6.1.y: cb11ca3233 ("drm/amd: Add concept of running prepare_suspend() sequence for IP blocks")
Cc: <stable@vger.kernel.org> # 6.1.y: 2ceec37b0e ("drm/amd: Add missing kernel doc for prepare_suspend()")
Cc: <stable@vger.kernel.org> # 6.1.y: 3a9626c816 ("drm/amd: Stop evicting resources on APUs in suspend")
Cc: <stable@vger.kernel.org> # 6.6.y: 5095d54181 ("drm/amd: Evict resources during PM ops prepare() callback")
Cc: <stable@vger.kernel.org> # 6.6.y: cb11ca3233 ("drm/amd: Add concept of running prepare_suspend() sequence for IP blocks")
Cc: <stable@vger.kernel.org> # 6.6.y: 2ceec37b0e ("drm/amd: Add missing kernel doc for prepare_suspend()")
Cc: <stable@vger.kernel.org> # 6.6.y: 3a9626c816 ("drm/amd: Stop evicting resources on APUs in suspend")
Cc: <stable@vger.kernel.org> # 6.1+
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3132
Fixes: ab4750332d ("drm/amdgpu/sdma5.2: add begin/end_use ring callbacks")
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
This commit is contained in:
Mario Limonciello
2024-03-20 13:32:21 -05:00
committed by Stefan Bader
parent bd2017664a
commit c857d66092
1 changed files with 2 additions and 0 deletions
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drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+2
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@@ -4524,6 +4524,8 @@ int amdgpu_device_prepare(struct drm_device *dev)
if (r)
goto unprepare;
flush_delayed_work(&adev->gfx.gfx_off_delay_work);
for (i = 0; i < adev->num_ip_blocks; i++) {
if (!adev->ip_blocks[i].status.valid)
continue;