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radeon: fix error in busmaster enable logic

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- logic was wrong.  rs400/rs480 should clear the RADEON_BUS_MASTER_DIS bit
- should fix kernel bug 11798
This commit is contained in:
Alex Deucher 2008-10-27 13:18:07 -04:00
parent 848f00d773
commit e1372f6727
1 changed files with 4 additions and 2 deletions
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6
shared-core/radeon_cp.c
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@ -657,8 +657,10 @@ static void radeon_cp_init_ring_buffer(struct drm_device * dev,
/* rs600/rs690/rs740 */
tmp = RADEON_READ(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS;
RADEON_WRITE(RADEON_BUS_CNTL, tmp);
} else if (!(((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV380) ||
((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R423))) {
} else if (((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV350) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R420) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS400) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS480)) {
/* r1xx, r2xx, r300, r(v)350, r420/r481, rs400/rs480 */
tmp = RADEON_READ(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS;
RADEON_WRITE(RADEON_BUS_CNTL, tmp);