diff options
Diffstat (limited to 'shared/via_dma.c')
-rw-r--r-- | shared/via_dma.c | 32 |
1 files changed, 19 insertions, 13 deletions
diff --git a/shared/via_dma.c b/shared/via_dma.c index 0c4418c4..6f877c5c 100644 --- a/shared/via_dma.c +++ b/shared/via_dma.c @@ -38,7 +38,6 @@ #include "via_drv.h" #include "via_3d_reg.h" -#define PCI_BUF_SIZE 512000 #define CMDBUF_ALIGNMENT_SIZE (0x100) #define CMDBUF_ALIGNMENT_MASK (0xff) @@ -67,10 +66,6 @@ *vb++ = (w2); \ dev_priv->dma_low += 8; - -static char pci_buf[PCI_BUF_SIZE]; -static unsigned long pci_bufsiz = PCI_BUF_SIZE; - static void via_cmdbuf_start(drm_via_private_t * dev_priv); static void via_cmdbuf_pause(drm_via_private_t * dev_priv); static void via_cmdbuf_reset(drm_via_private_t * dev_priv); @@ -267,12 +262,12 @@ static int via_dispatch_cmdbuffer(drm_device_t * dev, drm_via_cmdbuffer_t * cmd) return DRM_ERR(EFAULT); } - if (cmd->size > pci_bufsiz && pci_bufsiz > 0) { + if (cmd->size > VIA_PCI_BUF_SIZE) { return DRM_ERR(ENOMEM); } - if (DRM_COPY_FROM_USER(pci_buf, cmd->buf, cmd->size)) + if (DRM_COPY_FROM_USER(dev_priv->pci_buf, cmd->buf, cmd->size)) return DRM_ERR(EFAULT); /* @@ -282,7 +277,7 @@ static int via_dispatch_cmdbuffer(drm_device_t * dev, drm_via_cmdbuffer_t * cmd) */ - if ((ret = via_verify_command_stream((uint32_t *)pci_buf, cmd->size, dev, 1))) { + if ((ret = via_verify_command_stream((uint32_t *)dev_priv->pci_buf, cmd->size, dev, 1))) { return ret; } @@ -291,7 +286,7 @@ static int via_dispatch_cmdbuffer(drm_device_t * dev, drm_via_cmdbuffer_t * cmd) return DRM_ERR(EAGAIN); } - memcpy(vb, pci_buf, cmd->size); + memcpy(vb, dev_priv->pci_buf, cmd->size); dev_priv->dma_low += cmd->size; via_cmdbuf_pause(dev_priv); @@ -345,12 +340,17 @@ static int via_parse_pci_cmdbuffer(drm_device_t * dev, const char *buf, drm_via_private_t *dev_priv = dev->dev_private; const uint32_t *regbuf = (const uint32_t *) buf; const uint32_t *regend = regbuf + (size >> 2); + const uint32_t *next_fire; + int fire_count = 0; int ret; int check_2d_cmd = 1; + + if ((ret = via_verify_command_stream(regbuf, size, dev, 0))) return ret; + next_fire = dev_priv->fire_offsets[fire_count]; while (regbuf != regend) { if ( *regbuf == HALCYON_HEADER2 ) { @@ -363,9 +363,14 @@ static int via_parse_pci_cmdbuffer(drm_device_t * dev, const char *buf, register uint32_t addr = ( (*regbuf++ ) & ~HALCYON_HEADER1MASK) << 2; VIA_WRITE( addr, *regbuf++ ); - } else if ( ( *regbuf & HALCYON_FIREMASK ) == HALCYON_FIRECMD ) { + } else if ( (fire_count < dev_priv->num_fire_offsets) && + (regbuf == next_fire) && + (( *regbuf & HALCYON_FIREMASK ) == HALCYON_FIRECMD) ) { + + next_fire = dev_priv->fire_offsets[++fire_count]; VIA_WRITE(HC_REG_TRANS_SPACE + HC_REG_BASE, *regbuf++); + if ( ( regbuf != regend ) && ((*regbuf & HALCYON_FIREMASK) == HALCYON_FIRECMD)) regbuf++; @@ -384,14 +389,15 @@ static int via_parse_pci_cmdbuffer(drm_device_t * dev, const char *buf, static int via_dispatch_pci_cmdbuffer(drm_device_t * dev, drm_via_cmdbuffer_t * cmd) { + drm_via_private_t *dev_priv = dev->dev_private; int ret; - if (cmd->size > pci_bufsiz && pci_bufsiz > 0) { + if (cmd->size > VIA_PCI_BUF_SIZE) { return DRM_ERR(ENOMEM); } - if (DRM_COPY_FROM_USER(pci_buf, cmd->buf, cmd->size)) + if (DRM_COPY_FROM_USER(dev_priv->pci_buf, cmd->buf, cmd->size)) return DRM_ERR(EFAULT); - ret = via_parse_pci_cmdbuffer(dev, pci_buf, cmd->size); + ret = via_parse_pci_cmdbuffer(dev, dev_priv->pci_buf, cmd->size); return ret; } |