diff options
| author | Dave Airlie <airlied@redhat.com> | 2010-06-11 14:40:16 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-06-15 09:56:00 +1000 |
| commit | f5c5f040b565435e9a85898dc87ab365395e0603 (patch) | |
| tree | 39342bf557860add0cd2f9865d3e7d5f382a205c /drivers/gpu/drm/radeon/r100.c | |
| parent | 1ab064de4f3037aacb76d297c65d23e1b646fd2e (diff) | |
| download | lwn-f5c5f040b565435e9a85898dc87ab365395e0603.tar.gz lwn-f5c5f040b565435e9a85898dc87ab365395e0603.zip | |
radeon/kms: fix powerpc/rn50 untiled behaviour.
Installing 2.6.34 on a Power5/rn50 combo machine, X showed buggy sw rendering,
enabling tiling in the DDX fixed it. Investigation showed that a further /16
was needed in the untiled case on this chipset. Need further investigations
on what other chips this could affect, possibly rv100->rv280.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/r100.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/r100.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index cf89aa2eb28c..1930db6d1771 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -2604,12 +2604,6 @@ int r100_set_surface_reg(struct radeon_device *rdev, int reg, int surf_index = reg * 16; int flags = 0; - /* r100/r200 divide by 16 */ - if (rdev->family < CHIP_R300) - flags = pitch / 16; - else - flags = pitch / 8; - if (rdev->family <= CHIP_RS200) { if ((tiling_flags & (RADEON_TILING_MACRO|RADEON_TILING_MICRO)) == (RADEON_TILING_MACRO|RADEON_TILING_MICRO)) @@ -2633,6 +2627,20 @@ int r100_set_surface_reg(struct radeon_device *rdev, int reg, if (tiling_flags & RADEON_TILING_SWAP_32BIT) flags |= RADEON_SURF_AP0_SWP_32BPP | RADEON_SURF_AP1_SWP_32BPP; + /* when we aren't tiling the pitch seems to needs to be furtherdivided down. - tested on power5 + rn50 server */ + if (tiling_flags & (RADEON_TILING_SWAP_16BIT | RADEON_TILING_SWAP_32BIT)) { + if (!(tiling_flags & (RADEON_TILING_MACRO | RADEON_TILING_MICRO))) + if (ASIC_IS_RN50(rdev)) + pitch /= 16; + } + + /* r100/r200 divide by 16 */ + if (rdev->family < CHIP_R300) + flags |= pitch / 16; + else + flags |= pitch / 8; + + DRM_DEBUG("writing surface %d %d %x %x\n", reg, flags, offset, offset+obj_size-1); WREG32(RADEON_SURFACE0_INFO + surf_index, flags); WREG32(RADEON_SURFACE0_LOWER_BOUND + surf_index, offset); |