diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2012-08-15 17:18:42 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2012-09-20 13:10:33 -0400 |
| commit | 62444b7462a2b98bc78d68736c03a7c4e66ba7e2 (patch) | |
| tree | 818b15a0c9503e39210967c1d7adc021c5cfe53a /drivers/gpu/drm/radeon/evergreend.h | |
| parent | 75104fa4f98cdac5e97be5cb59463d49eb08da85 (diff) | |
| download | linux-62444b7462a2b98bc78d68736c03a7c4e66ba7e2.tar.gz linux-62444b7462a2b98bc78d68736c03a7c4e66ba7e2.tar.xz | |
drm/radeon: properly handle mc_stop/mc_resume on evergreen+ (v2)
- Stop the displays from accessing the FB
- Block CPU access
- Turn off MC client access
This should fix issues some users have seen, especially
with UEFI, when changing the MC FB location that result
in hangs or display corruption.
v2: fix crtc enabled check noticed by Luca Tettamanti
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/evergreend.h')
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreend.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h index 79347855d9bf..df542f1a5dfb 100644 --- a/drivers/gpu/drm/radeon/evergreend.h +++ b/drivers/gpu/drm/radeon/evergreend.h @@ -87,6 +87,10 @@ #define CONFIG_MEMSIZE 0x5428 +#define BIF_FB_EN 0x5490 +#define FB_READ_EN (1 << 0) +#define FB_WRITE_EN (1 << 1) + #define CP_COHER_BASE 0x85F8 #define CP_STALLED_STAT1 0x8674 #define CP_STALLED_STAT2 0x8678 @@ -430,6 +434,9 @@ #define NOOFCHAN_MASK 0x00003000 #define MC_SHARED_CHREMAP 0x2008 +#define MC_SHARED_BLACKOUT_CNTL 0x20ac +#define BLACKOUT_MODE_MASK 0x00000007 + #define MC_ARB_RAMCFG 0x2760 #define NOOFBANK_SHIFT 0 #define NOOFBANK_MASK 0x00000003 |