xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/radeon: implement pci config reset for evergreen/cayman (v2)

Browse Source 
pci config reset is a low level reset that resets
the entire chip from the bus interface.  It can
be more reliable if soft reset fails.

v2: put behind module parameter

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2013-11-01 16:25:10 -04:00
parent de9ae7447a
commit b5470b036e
3 changed files with 59 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/gpu/drm/radeon/ni.c
View File

@@ -174,6 +174,7 @@ extern void evergreen_pcie_gen2_enable(struct radeon_device *rdev);
extern void evergreen_program_aspm(struct radeon_device *rdev);
extern void sumo_rlc_fini(struct radeon_device *rdev);
extern int sumo_rlc_init(struct radeon_device *rdev);
extern void evergreen_gpu_pci_config_reset(struct radeon_device *rdev);
/* Firmware Names */
MODULE_FIRMWARE("radeon/BARTS_pfp.bin");
@@ -1878,8 +1879,10 @@ int cayman_asic_reset(struct radeon_device *rdev)
reset_mask = cayman_gpu_check_soft_reset(rdev);
if (!reset_mask)
r600_set_bios_scratch_engine_hung(rdev, false);
if (reset_mask)
evergreen_gpu_pci_config_reset(rdev);
r600_set_bios_scratch_engine_hung(rdev, false);
return 0;
}