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Commit 363eb0b4 authored by Alex Deucher's avatar Alex Deucher
Browse files

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: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 56492e0f

drivers/gpu/drm/radeon/radeon.h

+1 −0
Original line number Diff line number Diff line
@@ -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

drivers/gpu/drm/radeon/radeon_drv.c

+4 −0
Original line number Diff line number Diff line
@@ -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

};