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| author | Steve Conklin <sconklin@canonical.com> | 2011-02-06 11:04:06 -0800 |
|---|---|---|
| committer | AK <andi@firstfloor.org> | 2011-02-06 11:04:06 -0800 |
| commit | be9627d438a0bbad74b10fa58cc87b9869de33e6 (patch) | |
| tree | 4ab4aff5165b721562f53af0004f7863a4698fae | |
| parent | c82c51bbf2cfd71b09ca98da799f03009a6507e8 (diff) | |
| download | linux-stable-be9627d438a0bbad74b10fa58cc87b9869de33e6.tar.gz linux-stable-be9627d438a0bbad74b10fa58cc87b9869de33e6.tar.bz2 linux-stable-be9627d438a0bbad74b10fa58cc87b9869de33e6.zip | |
revert-drm-radeon-kms-properly-compute-group_size-on-6xx-7xx
Revert drm/radeon/kms: properly compute group_size on 6xx/7xx
From: Steve Conklin <sconklin@canonical.com>
We discovered a regression for Radeon users in our latest proposed
kernel for 2.6.35 (Maverick), and have isolated it to this patch:
http://git.kernel.org/?p=linux/kernel/git/longterm/linux-2.6.35.y.git;a=commit;h=b8e9a4a45f8427837f4dba89
+bda4d4e3f3a5c726
We took that patch as part of 2.6.35.10, and one of our testers has
reported that our build of that kernel also exhibits the problem.
These are mainline kernels built with the Ubuntu configs.
http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.35.10-maverick/
Our bug report is here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/703553
Upstream bug report:
https://bugzilla.kernel.org/show_bug.cgi?id=24802
Signed-off-by: Andi Kleen <ak@linux.intel.com>
| -rw-r--r-- | drivers/gpu/drm/radeon/r600.c | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/rv770.c | 9 |
2 files changed, 6 insertions, 10 deletions
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index cdddc4d4063a..abc2a661b922 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -1597,11 +1597,8 @@ void r600_gpu_init(struct radeon_device *rdev) rdev->config.r600.tiling_npipes = rdev->config.r600.max_tile_pipes; rdev->config.r600.tiling_nbanks = 4 << ((ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT); tiling_config |= BANK_TILING((ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT); - tiling_config |= GROUP_SIZE((ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT); - if ((ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT) - rdev->config.r600.tiling_group_size = 512; - else - rdev->config.r600.tiling_group_size = 256; + tiling_config |= GROUP_SIZE(0); + rdev->config.r600.tiling_group_size = 256; tmp = (ramcfg & NOOFROWS_MASK) >> NOOFROWS_SHIFT; if (tmp > 3) { tiling_config |= ROW_TILING(3); diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index 082c38044154..67e807371a08 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -627,11 +627,10 @@ static void rv770_gpu_init(struct radeon_device *rdev) else gb_tiling_config |= BANK_TILING((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT); rdev->config.rv770.tiling_nbanks = 4 << ((gb_tiling_config >> 4) & 0x3); - gb_tiling_config |= GROUP_SIZE((mc_arb_ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT); - if ((mc_arb_ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT) - rdev->config.rv770.tiling_group_size = 512; - else - rdev->config.rv770.tiling_group_size = 256; + + gb_tiling_config |= GROUP_SIZE(0); + rdev->config.rv770.tiling_group_size = 256; + if (((mc_arb_ramcfg & NOOFROWS_MASK) >> NOOFROWS_SHIFT) > 3) { gb_tiling_config |= ROW_TILING(3); gb_tiling_config |= SAMPLE_SPLIT(3); |