return DRM_ERR(EINVAL);
}
+ dev_priv->ring_map = drm_core_findmap(dev, init->ring_offset);
+ if (!dev_priv->ring_map) {
+ DRM_ERROR("can not find ring map!\n");
+ dev->dev_private = (void *)dev_priv;
+ mach64_do_cleanup_dma(dev);
+ return DRM_ERR(EINVAL);
+ }
+
dev_priv->sarea_priv = (drm_mach64_sarea_t *)
((u8 *) dev_priv->sarea->handle + init->sarea_priv_offset);
if (!dev_priv->is_pci) {
- dev_priv->ring_map = drm_core_findmap(dev, init->ring_offset);
- if (!dev_priv->ring_map) {
- DRM_ERROR("can not find ring map!\n");
- dev->dev_private = (void *)dev_priv;
- mach64_do_cleanup_dma(dev);
- return DRM_ERR(EINVAL);
- }
drm_core_ioremap(dev_priv->ring_map, dev);
if (!dev_priv->ring_map->handle) {
DRM_ERROR("can not ioremap virtual address for"
}
}
- /* allocate descriptor memory from pci pool */
- DRM_DEBUG("Allocating dma descriptor ring\n");
dev_priv->ring.size = 0x4000; /* 16KB */
-
- if (dev_priv->is_pci) {
- dev_priv->ring.dmah = drm_pci_alloc(dev, dev_priv->ring.size,
- dev_priv->ring.size,
- 0xfffffffful);
-
- if (!dev_priv->ring.dmah) {
- DRM_ERROR("Allocating dma descriptor ring failed\n");
- return DRM_ERR(ENOMEM);
- } else {
- dev_priv->ring.start = dev_priv->ring.dmah->vaddr;
- dev_priv->ring.start_addr =
- (u32) dev_priv->ring.dmah->busaddr;
- }
- } else {
- dev_priv->ring.start = dev_priv->ring_map->handle;
- dev_priv->ring.start_addr = (u32) dev_priv->ring_map->offset;
- }
+ dev_priv->ring.start = dev_priv->ring_map->handle;
+ dev_priv->ring.start_addr = (u32) dev_priv->ring_map->offset;
memset(dev_priv->ring.start, 0, dev_priv->ring.size);
DRM_INFO("descriptor ring: cpu addr %p, bus addr: 0x%08x\n",
if (dev->dev_private) {
drm_mach64_private_t *dev_priv = dev->dev_private;
- if (dev_priv->is_pci) {
- if (dev_priv->ring.dmah) {
- drm_pci_free(dev, dev_priv->ring.dmah);
- }
- } else {
+ if (!dev_priv->is_pci) {
if (dev_priv->ring_map)
drm_core_ioremapfree(dev_priv->ring_map, dev);
- }
- if (dev->agp_buffer_map) {
- drm_core_ioremapfree(dev->agp_buffer_map, dev);
- dev->agp_buffer_map = NULL;
+ if (dev->agp_buffer_map) {
+ drm_core_ioremapfree(dev->agp_buffer_map, dev);
+ dev->agp_buffer_map = NULL;
+ }
}
mach64_destroy_freelist(dev);
/* Copy and verify a client submited buffer.
* FIXME: Make an assembly optimized version
*/
-static __inline__ int copy_and_verify_from_user(u32 *to,
- const u32 __user *ufrom,
- unsigned long bytes)
+static __inline__ int copy_from_user_vertex(u32 *to,
+ const u32 __user *ufrom,
+ unsigned long bytes)
{
unsigned long n = bytes; /* dwords remaining in buffer */
u32 *from, *orig_from;
from = drm_alloc(bytes, DRM_MEM_DRIVER);
if (from == NULL)
- return ENOMEM;
+ return DRM_ERR(ENOMEM);
if (DRM_COPY_FROM_USER(from, ufrom, bytes)) {
drm_free(from, bytes, DRM_MEM_DRIVER);
return DRM_ERR(EAGAIN);
}
- verify_ret = copy_and_verify_from_user(GETBUFPTR(copy_buf), buf, used);
+ verify_ret = copy_from_user_vertex(GETBUFPTR(copy_buf), buf, used);
if (verify_ret != 0) {
mach64_freelist_put(dev_priv, copy_buf);
return verify_ret;
}
+static __inline__ int copy_from_user_blit(u32 *to,
+ const u32 __user *ufrom,
+ unsigned long bytes)
+{
+ to = (u32 *)((char *)to + MACH64_HOSTDATA_BLIT_OFFSET);
+
+ if (DRM_COPY_FROM_USER(to, ufrom, bytes)) {
+ return DRM_ERR(EFAULT);
+ }
+
+ return 0;
+}
+
static int mach64_dma_dispatch_blit(DRMFILE filp, drm_device_t * dev,
drm_mach64_blit_t * blit)
{
drm_mach64_private_t *dev_priv = dev->dev_private;
- drm_device_dma_t *dma = dev->dma;
int dword_shift, dwords;
- drm_buf_t *buf;
+ unsigned long used;
+ drm_buf_t *copy_buf;
+ int verify_ret = 0;
DMALOCALS;
/* The compiler won't optimize away a division by a variable,
return DRM_ERR(EINVAL);
}
- /* Dispatch the blit buffer.
- */
- buf = dma->buflist[blit->idx];
-
- if (buf->filp != filp) {
- DRM_ERROR("process %d (filp %p) using buffer with filp %p\n",
- DRM_CURRENTPID, filp, buf->filp);
- return DRM_ERR(EINVAL);
- }
-
- if (buf->pending) {
- DRM_ERROR("sending pending buffer %d\n", blit->idx);
- return DRM_ERR(EINVAL);
- }
-
/* Set buf->used to the bytes of blit data based on the blit dimensions
* and verify the size. When the setup is emitted to the buffer with
* the DMA* macros below, buf->used is incremented to include the bytes
* used for setup as well as the blit data.
*/
dwords = (blit->width * blit->height) >> dword_shift;
- buf->used = dwords << 2;
- if (buf->used <= 0 ||
- buf->used > MACH64_BUFFER_SIZE - MACH64_HOSTDATA_BLIT_OFFSET) {
- DRM_ERROR("Invalid blit size: %d bytes\n", buf->used);
+ used = dwords << 2;
+ if (used <= 0 ||
+ used > MACH64_BUFFER_SIZE - MACH64_HOSTDATA_BLIT_OFFSET) {
+ DRM_ERROR("Invalid blit size: %lu bytes\n", used);
return DRM_ERR(EINVAL);
}
+ copy_buf = mach64_freelist_get(dev_priv);
+ if (copy_buf == NULL) {
+ DRM_ERROR("%s: couldn't get buffer\n", __FUNCTION__);
+ return DRM_ERR(EAGAIN);
+ }
+
+ verify_ret = copy_from_user_blit(GETBUFPTR(copy_buf), blit->buf, used);
+
+ if (verify_ret != 0) {
+ mach64_freelist_put(dev_priv, copy_buf);
+ goto _blit_done;
+ }
+
+ copy_buf->used = used;
+
/* FIXME: Use a last buffer flag and reduce the state emitted for subsequent,
* continuation buffers?
*/
* a register command every 16 dwords. State setup is added at the start of the
* buffer -- the client leaves space for this based on MACH64_HOSTDATA_BLIT_OFFSET
*/
- DMASETPTR(buf);
+ DMASETPTR(copy_buf);
DMAOUTREG(MACH64_Z_CNTL, 0);
DMAOUTREG(MACH64_SCALE_3D_CNTL, 0);
DMAOUTREG(MACH64_DST_X_Y, (blit->y << 16) | blit->x);
DMAOUTREG(MACH64_DST_WIDTH_HEIGHT, (blit->height << 16) | blit->width);
- DRM_DEBUG("%s: %d bytes\n", __FUNCTION__, buf->used);
+ DRM_DEBUG("%s: %lu bytes\n", __FUNCTION__, used);
/* Add the buffer to the queue */
DMAADVANCEHOSTDATA(dev_priv);
- return 0;
+_blit_done:
+ return verify_ret;
}
/* ================================================================
int mach64_dma_blit(DRM_IOCTL_ARGS)
{
DRM_DEVICE;
- drm_device_dma_t *dma = dev->dma;
drm_mach64_private_t *dev_priv = dev->dev_private;
drm_mach64_sarea_t *sarea_priv = dev_priv->sarea_priv;
drm_mach64_blit_t blit;
DRM_COPY_FROM_USER_IOCTL(blit, (drm_mach64_blit_t *) data,
sizeof(blit));
- DRM_DEBUG("%s: pid=%d index=%d\n",
- __FUNCTION__, DRM_CURRENTPID, blit.idx);
-
- if (blit.idx < 0 || blit.idx >= dma->buf_count) {
- DRM_ERROR("buffer index %d (of %d max)\n",
- blit.idx, dma->buf_count - 1);
- return DRM_ERR(EINVAL);
- }
-
ret = mach64_dma_dispatch_blit(filp, dev, &blit);
/* Make sure we restore the 3D state next time.
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