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| author | Alex Deucher <alexander.deucher@amd.com> | 2014-01-08 17:55:08 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2014-01-08 18:41:48 -0500 |
| commit | 363eb0b4b787ea6ebb7a58d15df032126c111770 (patch) | |
| tree | 28de45f3b8d658c390918d41376f6164b9008bde /drivers | |
| parent | 56492e0fac2dbaf7735ffd66b206a90624917789 (diff) | |
| download | op-kernel-dev-363eb0b4b787ea6ebb7a58d15df032126c111770.zip op-kernel-dev-363eb0b4b787ea6ebb7a58d15df032126c111770.tar.gz | |
drm/radeon: add hard_reset module parameter
Enabling this parameter enables pci config reset,
aka hard reset, which is a bus level chip reset.
In some cases this works more reliably than a soft
reset. Disabled by default.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_drv.c | 4 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index ba74aad..9dd6cc4 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -99,6 +99,7 @@ extern int radeon_fastfb; extern int radeon_dpm; extern int radeon_aspm; extern int radeon_runtime_pm; +extern int radeon_hard_reset; /* * Copy from radeon_drv.h so we don't have to include both and have conflicting diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index f6f30b9..e91d548 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -167,6 +167,7 @@ int radeon_fastfb = 0; int radeon_dpm = -1; int radeon_aspm = -1; int radeon_runtime_pm = -1; +int radeon_hard_reset = 0; MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers"); module_param_named(no_wb, radeon_no_wb, int, 0444); @@ -231,6 +232,9 @@ module_param_named(aspm, radeon_aspm, int, 0444); MODULE_PARM_DESC(runpm, "PX runtime pm (1 = force enable, 0 = disable, -1 = PX only default)"); module_param_named(runpm, radeon_runtime_pm, int, 0444); +MODULE_PARM_DESC(hard_reset, "PCI config reset (1 = force enable, 0 = disable (default))"); +module_param_named(hard_reset, radeon_hard_reset, int, 0444); + static struct pci_device_id pciidlist[] = { radeon_PCI_IDS }; |
