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drm/radeon: allow to force hard GPU reset.

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In some cases, like when freezing for hibernation, we need to be
able to force hard reset even if no engine are stuck. This patch
add a bool option to current asic reset callback to allow to force
hard reset on asic that supports it.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jérome Glisse
2016-03-18 16:58:38 +01:00
committed by Alex Deucher
parent fabb593587
commit 71fe289970
10 changed files with 44 additions and 18 deletions
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7
drivers/gpu/drm/radeon/r600.c
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@@ -1871,10 +1871,15 @@ static void r600_gpu_pci_config_reset(struct radeon_device *rdev)
}
}
int r600_asic_reset(struct radeon_device *rdev)
int r600_asic_reset(struct radeon_device *rdev, bool hard)
{
u32 reset_mask;
if (hard) {
r600_gpu_pci_config_reset(rdev);
return 0;
}
reset_mask = r600_gpu_check_soft_reset(rdev);
if (reset_mask)