diff options
| author | Thomas Hellstrom <thomas-at-tungstengraphics-dot-com> | 2006-12-20 13:04:21 +0100 |
|---|---|---|
| committer | Thomas Hellstrom <thomas-at-tungstengraphics-dot-com> | 2006-12-20 13:04:21 +0100 |
| commit | 3b47b27558915a3a28591209e324b977e09d7c03 (patch) | |
| tree | f5b81a88978d315a4f2873d18d0dbcb4d8bb86b9 | |
| parent | e5c4a26a29a9af301cb8b0aebbba84e70f995b83 (diff) | |
Some via PCI posting flushes.
| -rw-r--r-- | linux-core/via_dmablit.c | 2 | ||||
| -rw-r--r-- | shared-core/via_dma.c | 4 |
2 files changed, 5 insertions, 1 deletions
diff --git a/linux-core/via_dmablit.c b/linux-core/via_dmablit.c index cbb73711..1fb902cb 100644 --- a/linux-core/via_dmablit.c +++ b/linux-core/via_dmablit.c @@ -217,7 +217,9 @@ via_fire_dmablit(drm_device_t *dev, drm_via_sg_info_t *vsg, int engine) VIA_WRITE(VIA_PCI_DMA_MR0 + engine*0x04, VIA_DMA_MR_CM | VIA_DMA_MR_TDIE); VIA_WRITE(VIA_PCI_DMA_BCR0 + engine*0x10, 0); VIA_WRITE(VIA_PCI_DMA_DPR0 + engine*0x10, vsg->chain_start); + DRM_WRITEMEMORYBARRIER(); VIA_WRITE(VIA_PCI_DMA_CSR0 + engine*0x04, VIA_DMA_CSR_DE | VIA_DMA_CSR_TS); + VIA_READ(VIA_PCI_DMA_CSR0 + engine*0x04); } /* diff --git a/shared-core/via_dma.c b/shared-core/via_dma.c index c6e7aa77..90dbb6a2 100644 --- a/shared-core/via_dma.c +++ b/shared-core/via_dma.c @@ -489,6 +489,7 @@ 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; @@ -572,8 +573,9 @@ 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) |