diff options
| author | Kumar Gala <galak@kernel.crashing.org> | 2007-02-12 21:28:39 -0600 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2007-02-12 21:28:39 -0600 |
| commit | 67c2b7d9d224232ee730b9c9444abed824b62e7a (patch) | |
| tree | 61a48c2e3562f8f66c04fd02691390dec96466e1 /drivers/char/drm/via_dma.c | |
| parent | 49baa91d6863df480fa05eb57524a274f77fa886 (diff) | |
| parent | 5986a2ec35836a878350c54af4bd91b1de6abc59 (diff) | |
| download | blackbird-op-linux-67c2b7d9d224232ee730b9c9444abed824b62e7a.tar.gz blackbird-op-linux-67c2b7d9d224232ee730b9c9444abed824b62e7a.zip | |
Merge branch 'master' into 83xx
Diffstat (limited to 'drivers/char/drm/via_dma.c')
| -rw-r--r-- | drivers/char/drm/via_dma.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/char/drm/via_dma.c b/drivers/char/drm/via_dma.c index a691ae74129d..c0539c6299cf 100644 --- a/drivers/char/drm/via_dma.c +++ b/drivers/char/drm/via_dma.c @@ -190,6 +190,11 @@ static int via_initialize(drm_device_t * dev, return DRM_ERR(EFAULT); } + if (dev_priv->chipset == VIA_DX9_0) { + DRM_ERROR("AGP DMA is not supported on this chip\n"); + return DRM_ERR(EINVAL); + } + dev_priv->ring.map.offset = dev->agp->base + init->offset; dev_priv->ring.map.size = init->size; dev_priv->ring.map.type = 0; @@ -480,6 +485,7 @@ static int via_hook_segment(drm_via_private_t * dev_priv, VIA_WRITE(VIA_REG_TRANSET, (HC_ParaType_PreCR << 16)); VIA_WRITE(VIA_REG_TRANSPACE, pause_addr_hi); VIA_WRITE(VIA_REG_TRANSPACE, pause_addr_lo); + VIA_READ(VIA_REG_TRANSPACE); } } return paused; @@ -557,8 +563,9 @@ static void via_cmdbuf_start(drm_via_private_t * dev_priv) VIA_WRITE(VIA_REG_TRANSPACE, pause_addr_hi); VIA_WRITE(VIA_REG_TRANSPACE, pause_addr_lo); - + DRM_WRITEMEMORYBARRIER(); VIA_WRITE(VIA_REG_TRANSPACE, command | HC_HAGPCMNT_MASK); + VIA_READ(VIA_REG_TRANSPACE); } static void via_pad_cache(drm_via_private_t * dev_priv, int qwords) |
