drm: update VIA driver to 2.7.2

Add PCI DMA blitengine to VIA DRM
Add portability code for porting VIA to FreeBSD.
Sync via_drm.h with 3d driver

From: Thomas Hellstrom <unichrome@shipmail.org>, Eric Anholt <anholt@freebsd.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>

1 files changed, 26 insertions, 10 deletions

diff --git a/drivers/char/drm/via_dma.c b/drivers/char/drm/via_dma.c
index d4b1766608b..1acbeeb2806 100644
--- a/drivers/char/drm/via_dma.c
+++ b/drivers/char/drm/via_dma.c
@@ -213,7 +213,9 @@ static int via_initialize(drm_device_t * dev,
 	dev_priv->dma_wrap = init->size;
 	dev_priv->dma_offset = init->offset;
 	dev_priv->last_pause_ptr = NULL;
-	dev_priv->hw_addr_ptr = dev_priv->mmio->handle + init->reg_pause_addr;
+	dev_priv->hw_addr_ptr =
+		(volatile uint32_t *)((char *)dev_priv->mmio->handle +
+		init->reg_pause_addr);
 
 	via_cmdbuf_start(dev_priv);
 
@@ -232,13 +234,13 @@ int via_dma_init(DRM_IOCTL_ARGS)
 
 	switch (init.func) {
 	case VIA_INIT_DMA:
-		if (!capable(CAP_SYS_ADMIN))
+		if (!DRM_SUSER(DRM_CURPROC))
 			retcode = DRM_ERR(EPERM);
 		else
 			retcode = via_initialize(dev, dev_priv, &init);
 		break;
 	case VIA_CLEANUP_DMA:
-		if (!capable(CAP_SYS_ADMIN))
+		if (!DRM_SUSER(DRM_CURPROC))
 			retcode = DRM_ERR(EPERM);
 		else
 			retcode = via_dma_cleanup(dev);
@@ -349,9 +351,6 @@ int via_cmdbuffer(DRM_IOCTL_ARGS)
 	return 0;
 }
 
-extern int
-via_parse_command_stream(drm_device_t * dev, const uint32_t * buf,
-			 unsigned int size);
 static int via_dispatch_pci_cmdbuffer(drm_device_t * dev,
 				      drm_via_cmdbuffer_t * cmd)
 {
@@ -450,9 +449,9 @@ static int via_hook_segment(drm_via_private_t * dev_priv,
 	if ((count <= 8) && (count >= 0)) {
 		uint32_t rgtr, ptr;
 		rgtr = *(dev_priv->hw_addr_ptr);
-		ptr = ((char *)dev_priv->last_pause_ptr - dev_priv->dma_ptr) +
-		    dev_priv->dma_offset + (uint32_t) dev_priv->agpAddr + 4 -
-		    CMDBUF_ALIGNMENT_SIZE;
+		ptr = ((volatile char *)dev_priv->last_pause_ptr -
+		      dev_priv->dma_ptr) + dev_priv->dma_offset +
+		      (uint32_t) dev_priv->agpAddr + 4 - CMDBUF_ALIGNMENT_SIZE;
 		if (rgtr <= ptr) {
 			DRM_ERROR
 			    ("Command regulator\npaused at count %d, address %x, "
@@ -472,7 +471,7 @@ static int via_hook_segment(drm_via_private_t * dev_priv,
 		       && count--) ;
 
 		rgtr = *(dev_priv->hw_addr_ptr);
-		ptr = ((char *)paused_at - dev_priv->dma_ptr) +
+		ptr = ((volatile char *)paused_at - dev_priv->dma_ptr) +
 		    dev_priv->dma_offset + (uint32_t) dev_priv->agpAddr + 4;
 
 		ptr_low = (ptr > 3 * CMDBUF_ALIGNMENT_SIZE) ?
@@ -724,3 +723,20 @@ int via_cmdbuf_size(DRM_IOCTL_ARGS)
 			       sizeof(d_siz));
 	return ret;
 }
+
+drm_ioctl_desc_t via_ioctls[] = {
+	[DRM_IOCTL_NR(DRM_VIA_ALLOCMEM)] = {via_mem_alloc, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_FREEMEM)] = {via_mem_free, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_AGP_INIT)] = {via_agp_init, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_FB_INIT)] = {via_fb_init, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_MAP_INIT)] = {via_map_init, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_DEC_FUTEX)] = {via_decoder_futex, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_DMA_INIT)] = {via_dma_init, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_CMDBUFFER)] = {via_cmdbuffer, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_FLUSH)] = {via_flush_ioctl, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_PCICMD)] = {via_pci_cmdbuffer, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_CMDBUF_SIZE)] = {via_cmdbuf_size, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_WAIT_IRQ)] = {via_wait_irq, 1, 0}
+};
+
+int via_max_ioctl = DRM_ARRAY_SIZE(via_ioctls);