From 29d654067a98c1cb8874c774e5fd799a038af8a6 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 31 May 2012 18:53:36 -0400 Subject: drm/radeon: fix bank information in tiling config While there are cards with more than 8 mem banks, the max number of banks from a tiling perspective is 8, so cap the tiling config at 8 banks. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=43448 Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/rv770.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers/gpu/drm/radeon/rv770.c') diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index c2f473bc13b8..c824d49305a4 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -689,8 +689,12 @@ static void rv770_gpu_init(struct radeon_device *rdev) if (rdev->family == CHIP_RV770) gb_tiling_config |= BANK_TILING(1); - else - gb_tiling_config |= BANK_TILING((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT); + else { + if ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT) + gb_tiling_config |= BANK_TILING(1); + else + gb_tiling_config |= BANK_TILING(0); + } 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) -- cgit v1.2.3