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radeon: fix PCI bus mastering support enables.

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Someone noticed these registers moved around for later chips,
so we redo the codepaths per-chip. PCIE chips don't appear to
require explicit enables.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher
2008-10-17 09:21:45 +10:00
committed by Dave Airlie
parent b2ceddfa52
commit edc6f389f6
3 changed files with 61 additions and 24 deletions
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16
drivers/gpu/drm/radeon/radeon_cp.c
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@@ -363,6 +363,7 @@ static void radeon_cp_load_microcode(drm_radeon_private_t * dev_priv)
R300_cp_microcode[i][0]);
}
} else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R420) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R423) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV410)) {
DRM_INFO("Loading R400 Microcode\n");
for (i = 0; i < 256; i++) {
@@ -652,8 +653,18 @@ static void radeon_cp_init_ring_buffer(struct drm_device * dev,
RADEON_WRITE(RADEON_SCRATCH_UMSK, 0x7);
/* Turn on bus mastering */
tmp = RADEON_READ(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS;
RADEON_WRITE(RADEON_BUS_CNTL, tmp);
if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS400) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740)) {
/* rs400, rs690/rs740 */
tmp = RADEON_READ(RADEON_BUS_CNTL) & ~RS400_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))) {
/* r1xx, r2xx, r300, r(v)350, r420/r481, rs480 */
tmp = RADEON_READ(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS;
RADEON_WRITE(RADEON_BUS_CNTL, tmp);
} /* PCIE cards appears to not need this */
dev_priv->sarea_priv->last_frame = dev_priv->scratch[0] = 0;
RADEON_WRITE(RADEON_LAST_FRAME_REG, dev_priv->sarea_priv->last_frame);
@@ -1719,6 +1730,7 @@ int radeon_driver_load(struct drm_device *dev, unsigned long flags)
case CHIP_R300:
case CHIP_R350:
case CHIP_R420:
case CHIP_R423:
case CHIP_RV410:
case CHIP_RV515:
case CHIP_R520: