diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2012-08-15 17:18:42 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-12-10 10:59:39 -0800 |
| commit | a0c246c82dc5d1a9ab857364522ec56627a858eb (patch) | |
| tree | e310a182c6bae708b49c07bc21189822d3e11f0f /drivers/gpu/drm/radeon/evergreend.h | |
| parent | dfbc8b9eab0b50753a397de1abed62d4397e13ca (diff) | |
drm/radeon: properly handle mc_stop/mc_resume on evergreen+ (v2)
commit 62444b7462a2b98bc78d68736c03a7c4e66ba7e2 upstream.
- 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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 2eaaea061d6c..81e744fab31a 100644 --- a/drivers/gpu/drm/radeon/evergreend.h +++ b/drivers/gpu/drm/radeon/evergreend.h @@ -77,6 +77,10 @@ #define CONFIG_MEMSIZE 0x5428 +#define BIF_FB_EN 0x5490 +#define FB_READ_EN (1 << 0) +#define FB_WRITE_EN (1 << 1) + #define CP_STRMOUT_CNTL 0x84FC #define CP_COHER_CNTL 0x85F0 @@ -200,6 +204,9 @@ #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 |