diff options
| author | Alex Deucher <alexdeucher@gmail.com> | 2009-12-01 13:43:46 -0500 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2009-12-02 14:00:06 +1000 |
| commit | d8f60cfc93452d0554f6a701aa8e3236cbee4636 (patch) | |
| tree | d6048658b42bdd9443f424755cd85f855e1477ba /drivers/gpu/drm/radeon/radeon_drv.h | |
| parent | 50dafba685c0f12c23d315820370b32d9ba64db7 (diff) | |
drm/radeon/kms: Add support for interrupts on r6xx/r7xx chips (v3)
This enables the use of interrupts on r6xx/r7xx hardware.
Interrupts are implemented via a ring buffer. The GPU adds
interrupts vectors to the ring and the host reads them off
in the interrupt handler. The interrupt controller requires
firmware like the CP. This firmware must be installed and
accessble to the firmware loader for interrupts to function.
MSIs don't seem to work on my RS780. They work fine on all
my discrete cards. I'm not sure about other RS780s or
RS880s. I've disabled MSIs on RS780 and RS880, but it would
probably be worth checking on some other systems.
v2 - fix some checkpatch.pl problems;
re-read the disp int status reg if we restart the ih;
v3 - remove the irq handler if r600_irq_init() fails;
remove spinlock in r600_ih_ring_fini();
move ih rb overflow check to r600_get_ih_wptr();
move irq ack to separate function;
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_drv.h')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_drv.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h index 350962e0f34..e13785282a8 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.h +++ b/drivers/gpu/drm/radeon/radeon_drv.h @@ -1104,7 +1104,6 @@ extern u32 radeon_get_scratch(drm_radeon_private_t *dev_priv, int index); # define R600_IT_WAIT_REG_MEM 0x00003C00 # define R600_IT_MEM_WRITE 0x00003D00 # define R600_IT_INDIRECT_BUFFER 0x00003200 -# define R600_IT_CP_INTERRUPT 0x00004000 # define R600_IT_SURFACE_SYNC 0x00004300 # define R600_CB0_DEST_BASE_ENA (1 << 6) # define R600_TC_ACTION_ENA (1 << 23) |