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| author | Alex Deucher <alexdeucher@gmail.com> | 2010-04-22 12:52:11 -0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-05-18 18:20:49 +1000 |
| commit | 2031f77ca9c17133869b265210418959a909d259 (patch) | |
| tree | 21fc2aedea8f3c80c4de1d7b1168479bc7a1ce98 /drivers/gpu/drm/radeon/radeon_reg.h | |
| parent | def9ba9cf6a8266ee1ffd72556db002c3a2663db (diff) | |
| download | lwn-2031f77ca9c17133869b265210418959a909d259.tar.gz lwn-2031f77ca9c17133869b265210418959a909d259.zip | |
drm/radeon/kms: add support for gui idle interrupts (v4)
Useful for certain power management operations. You
need to wait for the GUI engine (2D, 3D, CP, etc.) to be
idle before changing clocks or adjusting engine parameters.
(v2) Fix gui idle enable on pre-r6xx asics
(v3) The gui idle interrrupt status bit is permanently asserted
on pre-r6xx chips, but the interrrupt is still generated.
workaround it in the driver.
(v4) Add support for evergreen
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_reg.h')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_reg.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_reg.h b/drivers/gpu/drm/radeon/radeon_reg.h index eabbc9cf30a7..74d1cbfa23a1 100644 --- a/drivers/gpu/drm/radeon/radeon_reg.h +++ b/drivers/gpu/drm/radeon/radeon_reg.h @@ -995,6 +995,7 @@ # define RADEON_FP_DETECT_MASK (1 << 4) # define RADEON_CRTC2_VBLANK_MASK (1 << 9) # define RADEON_FP2_DETECT_MASK (1 << 10) +# define RADEON_GUI_IDLE_MASK (1 << 19) # define RADEON_SW_INT_ENABLE (1 << 25) #define RADEON_GEN_INT_STATUS 0x0044 # define AVIVO_DISPLAY_INT_STATUS (1 << 0) @@ -1006,6 +1007,8 @@ # define RADEON_CRTC2_VBLANK_STAT_ACK (1 << 9) # define RADEON_FP2_DETECT_STAT (1 << 10) # define RADEON_FP2_DETECT_STAT_ACK (1 << 10) +# define RADEON_GUI_IDLE_STAT (1 << 19) +# define RADEON_GUI_IDLE_STAT_ACK (1 << 19) # define RADEON_SW_INT_FIRE (1 << 26) # define RADEON_SW_INT_TEST (1 << 25) # define RADEON_SW_INT_TEST_ACK (1 << 25) |