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| 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/evergreen_reg.h | |
| parent | 75104fa4f98cdac5e97be5cb59463d49eb08da85 (diff) | |
| download | blackbird-op-linux-62444b7462a2b98bc78d68736c03a7c4e66ba7e2.tar.gz blackbird-op-linux-62444b7462a2b98bc78d68736c03a7c4e66ba7e2.zip | |
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/evergreen_reg.h')
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen_reg.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen_reg.h b/drivers/gpu/drm/radeon/evergreen_reg.h index 8beac1065025..034f4c22e5db 100644 --- a/drivers/gpu/drm/radeon/evergreen_reg.h +++ b/drivers/gpu/drm/radeon/evergreen_reg.h @@ -218,6 +218,8 @@ #define EVERGREEN_CRTC_CONTROL 0x6e70 # define EVERGREEN_CRTC_MASTER_EN (1 << 0) # define EVERGREEN_CRTC_DISP_READ_REQUEST_DISABLE (1 << 24) +#define EVERGREEN_CRTC_BLANK_CONTROL 0x6e74 +# define EVERGREEN_CRTC_BLANK_DATA_EN (1 << 8) #define EVERGREEN_CRTC_STATUS 0x6e8c # define EVERGREEN_CRTC_V_BLANK (1 << 0) #define EVERGREEN_CRTC_STATUS_POSITION 0x6e90 |
