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| author | Christian König <christian.koenig@amd.com> | 2017-05-10 20:06:58 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-05-24 15:49:24 -0400 |
| commit | b3c85a0fb2c79f2c945fa1305b39974d0acf3105 (patch) | |
| tree | cf90a02ad53439c88ac67326e894fff97397e98f /drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c | |
| parent | d51aff16e821a755c242e14168f5d4601199eafd (diff) | |
| download | linux-stable-b3c85a0fb2c79f2c945fa1305b39974d0acf3105.tar.gz linux-stable-b3c85a0fb2c79f2c945fa1305b39974d0acf3105.tar.bz2 linux-stable-b3c85a0fb2c79f2c945fa1305b39974d0acf3105.zip | |
drm/amdgpu: fix fundamental suspend/resume issue
Reinitializing the VM manager during suspend/resume is a very very bad
idea since all the VMs are still active and kicking.
This can lead to random VM faults after resume when new processes
become the same client ID assigned.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c | 15 |
1 files changed, 2 insertions, 13 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c index a572979f186c..d860939152df 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c @@ -950,10 +950,6 @@ static int gmc_v6_0_suspend(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; - if (adev->vm_manager.enabled) { - gmc_v6_0_vm_fini(adev); - adev->vm_manager.enabled = false; - } gmc_v6_0_hw_fini(adev); return 0; @@ -968,16 +964,9 @@ static int gmc_v6_0_resume(void *handle) if (r) return r; - if (!adev->vm_manager.enabled) { - r = gmc_v6_0_vm_init(adev); - if (r) { - dev_err(adev->dev, "vm manager initialization failed (%d).\n", r); - return r; - } - adev->vm_manager.enabled = true; - } + amdgpu_vm_reset_all_ids(adev); - return r; + return 0; } static bool gmc_v6_0_is_idle(void *handle) |