diff options
| author | David Miller <davem@davemloft.net> | 2009-02-12 02:15:44 -0800 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2009-03-13 14:24:02 +1000 |
| commit | e8a894372b4ea05dc266ba7d7a7634315b6230e8 (patch) | |
| tree | b6aa5fc6fec46ca6059989fb718b8049b35a22a7 /drivers/gpu/drm/radeon | |
| parent | b266503072f824a82d585a6d41ebd591a2d7daa4 (diff) | |
drm: radeon: Fix calculation of RB_RPTR_ADDR in non-AGP case.
The address needs to be a GART relative address, rather than a PCI
DMA address.
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Diffstat (limited to 'drivers/gpu/drm/radeon')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_cp.c | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_cp.c b/drivers/gpu/drm/radeon/radeon_cp.c index 8a8a82a2c170..4a56e7d626a6 100644 --- a/drivers/gpu/drm/radeon/radeon_cp.c +++ b/drivers/gpu/drm/radeon/radeon_cp.c @@ -657,17 +657,10 @@ static void radeon_cp_init_ring_buffer(struct drm_device * dev, } else #endif { - struct drm_sg_mem *entry = dev->sg; - unsigned long tmp_ofs, page_ofs; - - tmp_ofs = dev_priv->ring_rptr->offset - - (unsigned long)dev->sg->virtual; - page_ofs = tmp_ofs >> PAGE_SHIFT; - - RADEON_WRITE(RADEON_CP_RB_RPTR_ADDR, entry->busaddr[page_ofs]); - DRM_DEBUG("ring rptr: offset=0x%08lx handle=0x%08lx\n", - (unsigned long)entry->busaddr[page_ofs], - entry->handle + tmp_ofs); + RADEON_WRITE(RADEON_CP_RB_RPTR_ADDR, + dev_priv->ring_rptr->offset + - ((unsigned long) dev->sg->virtual) + + dev_priv->gart_vm_start); } /* Set ring buffer size */ |