#include "savage_drm.h"
#include "savage_drv.h"
-void savage_emit_clip_rect_s3d(drm_savage_private_t *dev_priv,
- drm_clip_rect_t *pbox)
+void savage_emit_clip_rect_s3d(drm_savage_private_t * dev_priv,
+ const drm_clip_rect_t * pbox)
{
uint32_t scstart = dev_priv->state.s3d.new_scstart;
- uint32_t scend = dev_priv->state.s3d.new_scend;
+ uint32_t scend = dev_priv->state.s3d.new_scend;
scstart = (scstart & ~SAVAGE_SCISSOR_MASK_S3D) |
- ((uint32_t)pbox->x1 & 0x000007ff) |
- (((uint32_t)pbox->y1 << 16) & 0x07ff0000);
- scend = (scend & ~SAVAGE_SCISSOR_MASK_S3D) |
- (((uint32_t)pbox->x2-1) & 0x000007ff) |
- ((((uint32_t)pbox->y2-1) << 16) & 0x07ff0000);
+ ((uint32_t) pbox->x1 & 0x000007ff) |
+ (((uint32_t) pbox->y1 << 16) & 0x07ff0000);
+ scend = (scend & ~SAVAGE_SCISSOR_MASK_S3D) |
+ (((uint32_t) pbox->x2 - 1) & 0x000007ff) |
+ ((((uint32_t) pbox->y2 - 1) << 16) & 0x07ff0000);
if (scstart != dev_priv->state.s3d.scstart ||
- scend != dev_priv->state.s3d.scend) {
+ scend != dev_priv->state.s3d.scend) {
DMA_LOCALS;
BEGIN_DMA(4);
- DMA_WRITE(BCI_CMD_WAIT|BCI_CMD_WAIT_3D);
+ DMA_WRITE(BCI_CMD_WAIT | BCI_CMD_WAIT_3D);
DMA_SET_REGISTERS(SAVAGE_SCSTART_S3D, 2);
DMA_WRITE(scstart);
DMA_WRITE(scend);
dev_priv->state.s3d.scstart = scstart;
- dev_priv->state.s3d.scend = scend;
+ dev_priv->state.s3d.scend = scend;
dev_priv->waiting = 1;
DMA_COMMIT();
}
}
-void savage_emit_clip_rect_s4(drm_savage_private_t *dev_priv,
- drm_clip_rect_t *pbox)
+void savage_emit_clip_rect_s4(drm_savage_private_t * dev_priv,
+ const drm_clip_rect_t * pbox)
{
uint32_t drawctrl0 = dev_priv->state.s4.new_drawctrl0;
uint32_t drawctrl1 = dev_priv->state.s4.new_drawctrl1;
drawctrl0 = (drawctrl0 & ~SAVAGE_SCISSOR_MASK_S4) |
- ((uint32_t)pbox->x1 & 0x000007ff) |
- (((uint32_t)pbox->y1 << 12) & 0x00fff000);
+ ((uint32_t) pbox->x1 & 0x000007ff) |
+ (((uint32_t) pbox->y1 << 12) & 0x00fff000);
drawctrl1 = (drawctrl1 & ~SAVAGE_SCISSOR_MASK_S4) |
- (((uint32_t)pbox->x2-1) & 0x000007ff) |
- ((((uint32_t)pbox->y2-1) << 12) & 0x00fff000);
+ (((uint32_t) pbox->x2 - 1) & 0x000007ff) |
+ ((((uint32_t) pbox->y2 - 1) << 12) & 0x00fff000);
if (drawctrl0 != dev_priv->state.s4.drawctrl0 ||
drawctrl1 != dev_priv->state.s4.drawctrl1) {
DMA_LOCALS;
BEGIN_DMA(4);
- DMA_WRITE(BCI_CMD_WAIT|BCI_CMD_WAIT_3D);
+ DMA_WRITE(BCI_CMD_WAIT | BCI_CMD_WAIT_3D);
DMA_SET_REGISTERS(SAVAGE_DRAWCTRL0_S4, 2);
DMA_WRITE(drawctrl0);
DMA_WRITE(drawctrl1);
}
}
-static int savage_verify_texaddr(drm_savage_private_t *dev_priv, int unit,
+static int savage_verify_texaddr(drm_savage_private_t * dev_priv, int unit,
uint32_t addr)
{
- if ((addr & 6) != 2) { /* reserved bits */
+ if ((addr & 6) != 2) { /* reserved bits */
DRM_ERROR("bad texAddr%d %08x (reserved bits)\n", unit, addr);
return DRM_ERR(EINVAL);
}
- if (!(addr & 1)) { /* local */
+ if (!(addr & 1)) { /* local */
addr &= ~7;
- if (addr < dev_priv->texture_offset ||
- addr >= dev_priv->texture_offset+dev_priv->texture_size) {
- DRM_ERROR("bad texAddr%d %08x (local addr out of range)\n",
- unit, addr);
+ if (addr < dev_priv->texture_offset ||
+ addr >= dev_priv->texture_offset + dev_priv->texture_size) {
+ DRM_ERROR
+ ("bad texAddr%d %08x (local addr out of range)\n",
+ unit, addr);
return DRM_ERR(EINVAL);
}
- } else { /* AGP */
+ } else { /* AGP */
if (!dev_priv->agp_textures) {
DRM_ERROR("bad texAddr%d %08x (AGP not available)\n",
unit, addr);
if (addr < dev_priv->agp_textures->offset ||
addr >= (dev_priv->agp_textures->offset +
dev_priv->agp_textures->size)) {
- DRM_ERROR("bad texAddr%d %08x (AGP addr out of range)\n",
- unit, addr);
+ DRM_ERROR
+ ("bad texAddr%d %08x (AGP addr out of range)\n",
+ unit, addr);
return DRM_ERR(EINVAL);
}
}
#define SAVE_STATE(reg,where) \
if(start <= reg && start+count > reg) \
- DRM_GET_USER_UNCHECKED(dev_priv->state.where, ®s[reg-start])
+ dev_priv->state.where = regs[reg - start]
#define SAVE_STATE_MASK(reg,where,mask) do { \
if(start <= reg && start+count > reg) { \
uint32_t tmp; \
- DRM_GET_USER_UNCHECKED(tmp, ®s[reg-start]); \
+ tmp = regs[reg - start]; \
dev_priv->state.where = (tmp & (mask)) | \
(dev_priv->state.where & ~(mask)); \
} \
} while (0)
-static int savage_verify_state_s3d(drm_savage_private_t *dev_priv,
+
+static int savage_verify_state_s3d(drm_savage_private_t * dev_priv,
unsigned int start, unsigned int count,
- const uint32_t __user *regs)
+ const uint32_t *regs)
{
if (start < SAVAGE_TEXPALADDR_S3D ||
- start+count-1 > SAVAGE_DESTTEXRWWATERMARK_S3D) {
+ start + count - 1 > SAVAGE_DESTTEXRWWATERMARK_S3D) {
DRM_ERROR("invalid register range (0x%04x-0x%04x)\n",
- start, start+count-1);
+ start, start + count - 1);
return DRM_ERR(EINVAL);
}
/* if any texture regs were changed ... */
if (start <= SAVAGE_TEXCTRL_S3D &&
- start+count > SAVAGE_TEXPALADDR_S3D) {
+ start + count > SAVAGE_TEXPALADDR_S3D) {
/* ... check texture state */
SAVE_STATE(SAVAGE_TEXCTRL_S3D, s3d.texctrl);
SAVE_STATE(SAVAGE_TEXADDR_S3D, s3d.texaddr);
if (dev_priv->state.s3d.texctrl & SAVAGE_TEXCTRL_TEXEN_MASK)
- return savage_verify_texaddr(
- dev_priv, 0, dev_priv->state.s3d.texaddr);
+ return savage_verify_texaddr(dev_priv, 0,
+ dev_priv->state.s3d.texaddr);
}
return 0;
}
-static int savage_verify_state_s4(drm_savage_private_t *dev_priv,
+static int savage_verify_state_s4(drm_savage_private_t * dev_priv,
unsigned int start, unsigned int count,
- const uint32_t __user *regs)
+ const uint32_t *regs)
{
int ret = 0;
if (start < SAVAGE_DRAWLOCALCTRL_S4 ||
- start+count-1 > SAVAGE_TEXBLENDCOLOR_S4) {
+ start + count - 1 > SAVAGE_TEXBLENDCOLOR_S4) {
DRM_ERROR("invalid register range (0x%04x-0x%04x)\n",
- start, start+count-1);
+ start, start + count - 1);
return DRM_ERR(EINVAL);
}
/* if any texture regs were changed ... */
if (start <= SAVAGE_TEXDESCR_S4 &&
- start+count > SAVAGE_TEXPALADDR_S4) {
+ start + count > SAVAGE_TEXPALADDR_S4) {
/* ... check texture state */
SAVE_STATE(SAVAGE_TEXDESCR_S4, s4.texdescr);
SAVE_STATE(SAVAGE_TEXADDR0_S4, s4.texaddr0);
SAVE_STATE(SAVAGE_TEXADDR1_S4, s4.texaddr1);
if (dev_priv->state.s4.texdescr & SAVAGE_TEXDESCR_TEX0EN_MASK)
- ret |= savage_verify_texaddr(
- dev_priv, 0, dev_priv->state.s4.texaddr0);
+ ret |= savage_verify_texaddr(dev_priv, 0,
+ dev_priv->state.s4.texaddr0);
if (dev_priv->state.s4.texdescr & SAVAGE_TEXDESCR_TEX1EN_MASK)
- ret |= savage_verify_texaddr(
- dev_priv, 1, dev_priv->state.s4.texaddr1);
+ ret |= savage_verify_texaddr(dev_priv, 1,
+ dev_priv->state.s4.texaddr1);
}
return ret;
}
+
#undef SAVE_STATE
#undef SAVE_STATE_MASK
-static int savage_dispatch_state(drm_savage_private_t *dev_priv,
- const drm_savage_cmd_header_t *cmd_header,
- const uint32_t __user *regs)
+static int savage_dispatch_state(drm_savage_private_t * dev_priv,
+ const drm_savage_cmd_header_t * cmd_header,
+ const uint32_t *regs)
{
unsigned int count = cmd_header->state.count;
unsigned int start = cmd_header->state.start;
if (!count)
return 0;
- if (DRM_VERIFYAREA_READ(regs, count*4))
- return DRM_ERR(EFAULT);
-
if (S3_SAVAGE3D_SERIES(dev_priv->chipset)) {
ret = savage_verify_state_s3d(dev_priv, start, count, regs);
if (ret != 0)
return ret;
/* scissor regs are emitted in savage_dispatch_draw */
if (start < SAVAGE_SCSTART_S3D) {
- if (start+count > SAVAGE_SCEND_S3D+1)
- count2 = count - (SAVAGE_SCEND_S3D+1 - start);
- if (start+count > SAVAGE_SCSTART_S3D)
+ if (start + count > SAVAGE_SCEND_S3D + 1)
+ count2 = count - (SAVAGE_SCEND_S3D + 1 - start);
+ if (start + count > SAVAGE_SCSTART_S3D)
count = SAVAGE_SCSTART_S3D - start;
} else if (start <= SAVAGE_SCEND_S3D) {
- if (start+count > SAVAGE_SCEND_S3D+1) {
- count -= SAVAGE_SCEND_S3D+1 - start;
- start = SAVAGE_SCEND_S3D+1;
+ if (start + count > SAVAGE_SCEND_S3D + 1) {
+ count -= SAVAGE_SCEND_S3D + 1 - start;
+ start = SAVAGE_SCEND_S3D + 1;
} else
return 0;
}
return ret;
/* scissor regs are emitted in savage_dispatch_draw */
if (start < SAVAGE_DRAWCTRL0_S4) {
- if (start+count > SAVAGE_DRAWCTRL1_S4+1)
- count2 = count - (SAVAGE_DRAWCTRL1_S4+1 - start);
- if (start+count > SAVAGE_DRAWCTRL0_S4)
+ if (start + count > SAVAGE_DRAWCTRL1_S4 + 1)
+ count2 = count -
+ (SAVAGE_DRAWCTRL1_S4 + 1 - start);
+ if (start + count > SAVAGE_DRAWCTRL0_S4)
count = SAVAGE_DRAWCTRL0_S4 - start;
} else if (start <= SAVAGE_DRAWCTRL1_S4) {
- if (start+count > SAVAGE_DRAWCTRL1_S4+1) {
- count -= SAVAGE_DRAWCTRL1_S4+1 - start;
- start = SAVAGE_DRAWCTRL1_S4+1;
+ if (start + count > SAVAGE_DRAWCTRL1_S4 + 1) {
+ count -= SAVAGE_DRAWCTRL1_S4 + 1 - start;
+ start = SAVAGE_DRAWCTRL1_S4 + 1;
} else
return 0;
}
}
- bci_size = count + (count+254)/255 + count2 + (count2+254)/255;
+ bci_size = count + (count + 254) / 255 + count2 + (count2 + 254) / 255;
if (cmd_header->state.global) {
- BEGIN_DMA(bci_size+1);
+ BEGIN_DMA(bci_size + 1);
DMA_WRITE(BCI_CMD_WAIT | BCI_CMD_WAIT_3D);
dev_priv->waiting = 1;
} else {
while (count > 0) {
unsigned int n = count < 255 ? count : 255;
DMA_SET_REGISTERS(start, n);
- DMA_COPY_FROM_USER(regs, n);
+ DMA_COPY(regs, n);
count -= n;
start += n;
regs += n;
return 0;
}
-static int savage_dispatch_dma_prim(drm_savage_private_t *dev_priv,
- const drm_savage_cmd_header_t *cmd_header,
- const drm_buf_t *dmabuf)
+static int savage_dispatch_dma_prim(drm_savage_private_t * dev_priv,
+ const drm_savage_cmd_header_t * cmd_header,
+ const drm_buf_t * dmabuf)
{
unsigned char reorder = 0;
unsigned int prim = cmd_header->prim.prim;
BCI_LOCALS;
if (!dmabuf) {
- DRM_ERROR("called without dma buffers!\n");
- return DRM_ERR(EINVAL);
+ DRM_ERROR("called without dma buffers!\n");
+ return DRM_ERR(EINVAL);
}
if (!n)
case SAVAGE_PRIM_TRISTRIP:
case SAVAGE_PRIM_TRIFAN:
if (n < 3) {
- DRM_ERROR("wrong number of vertices %u in TRIFAN/STRIP\n",
- n);
+ DRM_ERROR
+ ("wrong number of vertices %u in TRIFAN/STRIP\n",
+ n);
return DRM_ERR(EINVAL);
}
break;
if (S3_SAVAGE3D_SERIES(dev_priv->chipset)) {
if (skip != 0) {
- DRM_ERROR("invalid skip flags 0x%04x for DMA\n",
- skip);
+ DRM_ERROR("invalid skip flags 0x%04x for DMA\n", skip);
return DRM_ERR(EINVAL);
}
} else {
unsigned int size = 10 - (skip & 1) - (skip >> 1 & 1) -
- (skip >> 2 & 1) - (skip >> 3 & 1) - (skip >> 4 & 1) -
- (skip >> 5 & 1) - (skip >> 6 & 1) - (skip >> 7 & 1);
+ (skip >> 2 & 1) - (skip >> 3 & 1) - (skip >> 4 & 1) -
+ (skip >> 5 & 1) - (skip >> 6 & 1) - (skip >> 7 & 1);
if (skip > SAVAGE_SKIP_ALL_S4 || size != 8) {
- DRM_ERROR("invalid skip flags 0x%04x for DMA\n",
- skip);
+ DRM_ERROR("invalid skip flags 0x%04x for DMA\n", skip);
return DRM_ERR(EINVAL);
}
if (reorder) {
}
}
- if (start + n > dmabuf->total/32) {
+ if (start + n > dmabuf->total / 32) {
DRM_ERROR("vertex indices (%u-%u) out of range (0-%u)\n",
- start, start + n - 1, dmabuf->total/32);
+ start, start + n - 1, dmabuf->total / 32);
return DRM_ERR(EINVAL);
}
/* Need to reorder indices for correct flat
* shading while preserving the clock sense
* for correct culling. Only on Savage3D. */
- int reorder[3] = {-1, -1, -1};
- reorder[start%3] = 2;
+ int reorder[3] = { -1, -1, -1 };
+ reorder[start % 3] = 2;
- BEGIN_BCI((count+1+1)/2);
- BCI_DRAW_INDICES_S3D(count, prim, start+2);
+ BEGIN_BCI((count + 1 + 1) / 2);
+ BCI_DRAW_INDICES_S3D(count, prim, start + 2);
- for (i = start+1; i+1 < start+count; i += 2)
+ for (i = start + 1; i + 1 < start + count; i += 2)
BCI_WRITE((i + reorder[i % 3]) |
- ((i+1 + reorder[(i+1) % 3]) << 16));
- if (i < start+count)
- BCI_WRITE(i + reorder[i%3]);
+ ((i + 1 +
+ reorder[(i + 1) % 3]) << 16));
+ if (i < start + count)
+ BCI_WRITE(i + reorder[i % 3]);
} else if (S3_SAVAGE3D_SERIES(dev_priv->chipset)) {
- BEGIN_BCI((count+1+1)/2);
+ BEGIN_BCI((count + 1 + 1) / 2);
BCI_DRAW_INDICES_S3D(count, prim, start);
- for (i = start+1; i+1 < start+count; i += 2)
- BCI_WRITE(i | ((i+1) << 16));
- if (i < start+count)
+ for (i = start + 1; i + 1 < start + count; i += 2)
+ BCI_WRITE(i | ((i + 1) << 16));
+ if (i < start + count)
BCI_WRITE(i);
} else {
- BEGIN_BCI((count+2+1)/2);
+ BEGIN_BCI((count + 2 + 1) / 2);
BCI_DRAW_INDICES_S4(count, prim, skip);
- for (i = start; i+1 < start+count; i += 2)
- BCI_WRITE(i | ((i+1) << 16));
- if (i < start+count)
+ for (i = start; i + 1 < start + count; i += 2)
+ BCI_WRITE(i | ((i + 1) << 16));
+ if (i < start + count)
BCI_WRITE(i);
}
return 0;
}
-static int savage_dispatch_vb_prim(drm_savage_private_t *dev_priv,
- const drm_savage_cmd_header_t *cmd_header,
- const uint32_t __user *vtxbuf,
- unsigned int vb_size,
+static int savage_dispatch_vb_prim(drm_savage_private_t * dev_priv,
+ const drm_savage_cmd_header_t * cmd_header,
+ const uint32_t *vtxbuf, unsigned int vb_size,
unsigned int vb_stride)
{
unsigned char reorder = 0;
case SAVAGE_PRIM_TRISTRIP:
case SAVAGE_PRIM_TRIFAN:
if (n < 3) {
- DRM_ERROR("wrong number of vertices %u in TRIFAN/STRIP\n",
- n);
+ DRM_ERROR
+ ("wrong number of vertices %u in TRIFAN/STRIP\n",
+ n);
return DRM_ERR(EINVAL);
}
break;
DRM_ERROR("invalid skip flags 0x%04x\n", skip);
return DRM_ERR(EINVAL);
}
- vtx_size = 8; /* full vertex */
+ vtx_size = 8; /* full vertex */
} else {
if (skip > SAVAGE_SKIP_ALL_S4) {
DRM_ERROR("invalid skip flags 0x%04x\n", skip);
return DRM_ERR(EINVAL);
}
- vtx_size = 10; /* full vertex */
+ vtx_size = 10; /* full vertex */
}
vtx_size -= (skip & 1) + (skip >> 1 & 1) +
- (skip >> 2 & 1) + (skip >> 3 & 1) + (skip >> 4 & 1) +
- (skip >> 5 & 1) + (skip >> 6 & 1) + (skip >> 7 & 1);
+ (skip >> 2 & 1) + (skip >> 3 & 1) + (skip >> 4 & 1) +
+ (skip >> 5 & 1) + (skip >> 6 & 1) + (skip >> 7 & 1);
if (vtx_size > vb_stride) {
DRM_ERROR("vertex size greater than vb stride (%u > %u)\n",
return DRM_ERR(EINVAL);
}
- if (start + n > vb_size / (vb_stride*4)) {
+ if (start + n > vb_size / (vb_stride * 4)) {
DRM_ERROR("vertex indices (%u-%u) out of range (0-%u)\n",
- start, start + n - 1, vb_size / (vb_stride*4));
+ start, start + n - 1, vb_size / (vb_stride * 4));
return DRM_ERR(EINVAL);
}
/* Need to reorder vertices for correct flat
* shading while preserving the clock sense
* for correct culling. Only on Savage3D. */
- int reorder[3] = {-1, -1, -1};
- reorder[start%3] = 2;
+ int reorder[3] = { -1, -1, -1 };
+ reorder[start % 3] = 2;
- BEGIN_DMA(count*vtx_size+1);
+ BEGIN_DMA(count * vtx_size + 1);
DMA_DRAW_PRIMITIVE(count, prim, skip);
- for (i = start; i < start+count; ++i) {
+ for (i = start; i < start + count; ++i) {
unsigned int j = i + reorder[i % 3];
- DMA_COPY_FROM_USER(&vtxbuf[vb_stride*j],
- vtx_size);
+ DMA_COPY(&vtxbuf[vb_stride * j], vtx_size);
}
DMA_COMMIT();
} else {
- BEGIN_DMA(count*vtx_size+1);
+ BEGIN_DMA(count * vtx_size + 1);
DMA_DRAW_PRIMITIVE(count, prim, skip);
if (vb_stride == vtx_size) {
- DMA_COPY_FROM_USER(&vtxbuf[vb_stride*start],
- vtx_size*count);
+ DMA_COPY(&vtxbuf[vb_stride * start],
+ vtx_size * count);
} else {
- for (i = start; i < start+count; ++i) {
- DMA_COPY_FROM_USER(
- &vtxbuf[vb_stride*i],
- vtx_size);
+ for (i = start; i < start + count; ++i) {
+ DMA_COPY(&vtxbuf [vb_stride * i],
+ vtx_size);
}
}
return 0;
}
-static int savage_dispatch_dma_idx(drm_savage_private_t *dev_priv,
- const drm_savage_cmd_header_t *cmd_header,
- const uint16_t __user *usr_idx,
- const drm_buf_t *dmabuf)
+static int savage_dispatch_dma_idx(drm_savage_private_t * dev_priv,
+ const drm_savage_cmd_header_t * cmd_header,
+ const uint16_t *idx,
+ const drm_buf_t * dmabuf)
{
unsigned char reorder = 0;
unsigned int prim = cmd_header->idx.prim;
BCI_LOCALS;
if (!dmabuf) {
- DRM_ERROR("called without dma buffers!\n");
- return DRM_ERR(EINVAL);
+ DRM_ERROR("called without dma buffers!\n");
+ return DRM_ERR(EINVAL);
}
if (!n)
prim = SAVAGE_PRIM_TRILIST;
case SAVAGE_PRIM_TRILIST:
if (n % 3 != 0) {
- DRM_ERROR("wrong number of indices %u in TRILIST\n",
- n);
+ DRM_ERROR("wrong number of indices %u in TRILIST\n", n);
return DRM_ERR(EINVAL);
}
break;
case SAVAGE_PRIM_TRISTRIP:
case SAVAGE_PRIM_TRIFAN:
if (n < 3) {
- DRM_ERROR("wrong number of indices %u in TRIFAN/STRIP\n",
- n);
+ DRM_ERROR
+ ("wrong number of indices %u in TRIFAN/STRIP\n", n);
return DRM_ERR(EINVAL);
}
break;
if (S3_SAVAGE3D_SERIES(dev_priv->chipset)) {
if (skip != 0) {
- DRM_ERROR("invalid skip flags 0x%04x for DMA\n",
- skip);
+ DRM_ERROR("invalid skip flags 0x%04x for DMA\n", skip);
return DRM_ERR(EINVAL);
}
} else {
unsigned int size = 10 - (skip & 1) - (skip >> 1 & 1) -
- (skip >> 2 & 1) - (skip >> 3 & 1) - (skip >> 4 & 1) -
- (skip >> 5 & 1) - (skip >> 6 & 1) - (skip >> 7 & 1);
+ (skip >> 2 & 1) - (skip >> 3 & 1) - (skip >> 4 & 1) -
+ (skip >> 5 & 1) - (skip >> 6 & 1) - (skip >> 7 & 1);
if (skip > SAVAGE_SKIP_ALL_S4 || size != 8) {
- DRM_ERROR("invalid skip flags 0x%04x for DMA\n",
- skip);
+ DRM_ERROR("invalid skip flags 0x%04x for DMA\n", skip);
return DRM_ERR(EINVAL);
}
if (reorder) {
while (n != 0) {
/* Can emit up to 255 indices (85 triangles) at once. */
unsigned int count = n > 255 ? 255 : n;
- /* Is it ok to allocate 510 bytes on the stack in an ioctl? */
- uint16_t idx[255];
- /* Copy and check indices */
- DRM_COPY_FROM_USER_UNCHECKED(idx, usr_idx, count*2);
+ /* check indices */
for (i = 0; i < count; ++i) {
- if (idx[i] > dmabuf->total/32) {
+ if (idx[i] > dmabuf->total / 32) {
DRM_ERROR("idx[%u]=%u out of range (0-%u)\n",
- i, idx[i], dmabuf->total/32);
+ i, idx[i], dmabuf->total / 32);
return DRM_ERR(EINVAL);
}
}
/* Need to reorder indices for correct flat
* shading while preserving the clock sense
* for correct culling. Only on Savage3D. */
- int reorder[3] = {2, -1, -1};
+ int reorder[3] = { 2, -1, -1 };
- BEGIN_BCI((count+1+1)/2);
+ BEGIN_BCI((count + 1 + 1) / 2);
BCI_DRAW_INDICES_S3D(count, prim, idx[2]);
- for (i = 1; i+1 < count; i += 2)
+ for (i = 1; i + 1 < count; i += 2)
BCI_WRITE(idx[i + reorder[i % 3]] |
- (idx[i+1 + reorder[(i+1) % 3]] << 16));
+ (idx[i + 1 +
+ reorder[(i + 1) % 3]] << 16));
if (i < count)
- BCI_WRITE(idx[i + reorder[i%3]]);
+ BCI_WRITE(idx[i + reorder[i % 3]]);
} else if (S3_SAVAGE3D_SERIES(dev_priv->chipset)) {
- BEGIN_BCI((count+1+1)/2);
+ BEGIN_BCI((count + 1 + 1) / 2);
BCI_DRAW_INDICES_S3D(count, prim, idx[0]);
- for (i = 1; i+1 < count; i += 2)
- BCI_WRITE(idx[i] | (idx[i+1] << 16));
+ for (i = 1; i + 1 < count; i += 2)
+ BCI_WRITE(idx[i] | (idx[i + 1] << 16));
if (i < count)
BCI_WRITE(idx[i]);
} else {
- BEGIN_BCI((count+2+1)/2);
+ BEGIN_BCI((count + 2 + 1) / 2);
BCI_DRAW_INDICES_S4(count, prim, skip);
- for (i = 0; i+1 < count; i += 2)
- BCI_WRITE(idx[i] | (idx[i+1] << 16));
+ for (i = 0; i + 1 < count; i += 2)
+ BCI_WRITE(idx[i] | (idx[i + 1] << 16));
if (i < count)
BCI_WRITE(idx[i]);
}
- usr_idx += count;
+ idx += count;
n -= count;
prim |= BCI_CMD_DRAW_CONT;
return 0;
}
-static int savage_dispatch_vb_idx(drm_savage_private_t *dev_priv,
- const drm_savage_cmd_header_t *cmd_header,
- const uint16_t __user *usr_idx,
- const uint32_t __user *vtxbuf,
- unsigned int vb_size,
- unsigned int vb_stride)
+static int savage_dispatch_vb_idx(drm_savage_private_t * dev_priv,
+ const drm_savage_cmd_header_t * cmd_header,
+ const uint16_t *idx,
+ const uint32_t *vtxbuf,
+ unsigned int vb_size, unsigned int vb_stride)
{
unsigned char reorder = 0;
unsigned int prim = cmd_header->idx.prim;
prim = SAVAGE_PRIM_TRILIST;
case SAVAGE_PRIM_TRILIST:
if (n % 3 != 0) {
- DRM_ERROR("wrong number of indices %u in TRILIST\n",
- n);
+ DRM_ERROR("wrong number of indices %u in TRILIST\n", n);
return DRM_ERR(EINVAL);
}
break;
case SAVAGE_PRIM_TRISTRIP:
case SAVAGE_PRIM_TRIFAN:
if (n < 3) {
- DRM_ERROR("wrong number of indices %u in TRIFAN/STRIP\n",
- n);
+ DRM_ERROR
+ ("wrong number of indices %u in TRIFAN/STRIP\n", n);
return DRM_ERR(EINVAL);
}
break;
DRM_ERROR("invalid skip flags 0x%04x\n", skip);
return DRM_ERR(EINVAL);
}
- vtx_size = 8; /* full vertex */
+ vtx_size = 8; /* full vertex */
} else {
if (skip > SAVAGE_SKIP_ALL_S4) {
DRM_ERROR("invalid skip flags 0x%04x\n", skip);
return DRM_ERR(EINVAL);
}
- vtx_size = 10; /* full vertex */
+ vtx_size = 10; /* full vertex */
}
vtx_size -= (skip & 1) + (skip >> 1 & 1) +
- (skip >> 2 & 1) + (skip >> 3 & 1) + (skip >> 4 & 1) +
- (skip >> 5 & 1) + (skip >> 6 & 1) + (skip >> 7 & 1);
+ (skip >> 2 & 1) + (skip >> 3 & 1) + (skip >> 4 & 1) +
+ (skip >> 5 & 1) + (skip >> 6 & 1) + (skip >> 7 & 1);
if (vtx_size > vb_stride) {
DRM_ERROR("vertex size greater than vb stride (%u > %u)\n",
while (n != 0) {
/* Can emit up to 255 vertices (85 triangles) at once. */
unsigned int count = n > 255 ? 255 : n;
- /* Is it ok to allocate 510 bytes on the stack in an ioctl? */
- uint16_t idx[255];
-
- /* Copy and check indices */
- DRM_COPY_FROM_USER_UNCHECKED(idx, usr_idx, count*2);
+
+ /* Check indices */
for (i = 0; i < count; ++i) {
- if (idx[i] > vb_size / (vb_stride*4)) {
+ if (idx[i] > vb_size / (vb_stride * 4)) {
DRM_ERROR("idx[%u]=%u out of range (0-%u)\n",
- i, idx[i], vb_size / (vb_stride*4));
+ i, idx[i], vb_size / (vb_stride * 4));
return DRM_ERR(EINVAL);
}
}
/* Need to reorder vertices for correct flat
* shading while preserving the clock sense
* for correct culling. Only on Savage3D. */
- int reorder[3] = {2, -1, -1};
+ int reorder[3] = { 2, -1, -1 };
- BEGIN_DMA(count*vtx_size+1);
+ BEGIN_DMA(count * vtx_size + 1);
DMA_DRAW_PRIMITIVE(count, prim, skip);
for (i = 0; i < count; ++i) {
unsigned int j = idx[i + reorder[i % 3]];
- DMA_COPY_FROM_USER(&vtxbuf[vb_stride*j],
- vtx_size);
+ DMA_COPY(&vtxbuf[vb_stride * j], vtx_size);
}
DMA_COMMIT();
} else {
- BEGIN_DMA(count*vtx_size+1);
+ BEGIN_DMA(count * vtx_size + 1);
DMA_DRAW_PRIMITIVE(count, prim, skip);
for (i = 0; i < count; ++i) {
unsigned int j = idx[i];
- DMA_COPY_FROM_USER(&vtxbuf[vb_stride*j],
- vtx_size);
+ DMA_COPY(&vtxbuf[vb_stride * j], vtx_size);
}
DMA_COMMIT();
}
- usr_idx += count;
+ idx += count;
n -= count;
prim |= BCI_CMD_DRAW_CONT;
return 0;
}
-static int savage_dispatch_clear(drm_savage_private_t *dev_priv,
- const drm_savage_cmd_header_t *cmd_header,
- const drm_savage_cmd_header_t __user *data,
+static int savage_dispatch_clear(drm_savage_private_t * dev_priv,
+ const drm_savage_cmd_header_t * cmd_header,
+ const drm_savage_cmd_header_t *data,
unsigned int nbox,
- const drm_clip_rect_t __user *usr_boxes)
+ const drm_clip_rect_t *boxes)
{
- unsigned int flags = cmd_header->clear0.flags, mask, value;
+ unsigned int flags = cmd_header->clear0.flags;
unsigned int clear_cmd;
unsigned int i, nbufs;
DMA_LOCALS;
if (nbox == 0)
return 0;
- DRM_GET_USER_UNCHECKED(mask, &((const drm_savage_cmd_header_t*)data)
- ->clear1.mask);
- DRM_GET_USER_UNCHECKED(value, &((const drm_savage_cmd_header_t*)data)
- ->clear1.value);
-
clear_cmd = BCI_CMD_RECT | BCI_CMD_RECT_XP | BCI_CMD_RECT_YP |
- BCI_CMD_SEND_COLOR | BCI_CMD_DEST_PBD_NEW;
- BCI_CMD_SET_ROP(clear_cmd,0xCC);
+ BCI_CMD_SEND_COLOR | BCI_CMD_DEST_PBD_NEW;
+ BCI_CMD_SET_ROP(clear_cmd, 0xCC);
nbufs = ((flags & SAVAGE_FRONT) ? 1 : 0) +
- ((flags & SAVAGE_BACK) ? 1 : 0) +
- ((flags & SAVAGE_DEPTH) ? 1 : 0);
+ ((flags & SAVAGE_BACK) ? 1 : 0) + ((flags & SAVAGE_DEPTH) ? 1 : 0);
if (nbufs == 0)
return 0;
- if (mask != 0xffffffff) {
+ if (data->clear1.mask != 0xffffffff) {
/* set mask */
BEGIN_DMA(2);
DMA_SET_REGISTERS(SAVAGE_BITPLANEWTMASK, 1);
- DMA_WRITE(mask);
+ DMA_WRITE(data->clear1.mask);
DMA_COMMIT();
}
for (i = 0; i < nbox; ++i) {
- drm_clip_rect_t box;
unsigned int x, y, w, h;
unsigned int buf;
- DRM_COPY_FROM_USER_UNCHECKED(&box, &usr_boxes[i], sizeof(box));
- x = box.x1, y = box.y1;
- w = box.x2 - box.x1;
- h = box.y2 - box.y1;
- BEGIN_DMA(nbufs*6);
+ x = boxes[i].x1, y = boxes[i].y1;
+ w = boxes[i].x2 - boxes[i].x1;
+ h = boxes[i].y2 - boxes[i].y1;
+ BEGIN_DMA(nbufs * 6);
for (buf = SAVAGE_FRONT; buf <= SAVAGE_DEPTH; buf <<= 1) {
if (!(flags & buf))
continue;
DMA_WRITE(clear_cmd);
- switch(buf) {
+ switch (buf) {
case SAVAGE_FRONT:
DMA_WRITE(dev_priv->front_offset);
DMA_WRITE(dev_priv->front_bd);
DMA_WRITE(dev_priv->depth_bd);
break;
}
- DMA_WRITE(value);
+ DMA_WRITE(data->clear1.value);
DMA_WRITE(BCI_X_Y(x, y));
DMA_WRITE(BCI_W_H(w, h));
}
DMA_COMMIT();
}
- if (mask != 0xffffffff) {
+ if (data->clear1.mask != 0xffffffff) {
/* reset mask */
BEGIN_DMA(2);
DMA_SET_REGISTERS(SAVAGE_BITPLANEWTMASK, 1);
return 0;
}
-static int savage_dispatch_swap(drm_savage_private_t *dev_priv,
- unsigned int nbox,
- const drm_clip_rect_t __user *usr_boxes)
+static int savage_dispatch_swap(drm_savage_private_t * dev_priv,
+ unsigned int nbox, const drm_clip_rect_t *boxes)
{
unsigned int swap_cmd;
unsigned int i;
return 0;
swap_cmd = BCI_CMD_RECT | BCI_CMD_RECT_XP | BCI_CMD_RECT_YP |
- BCI_CMD_SRC_PBD_COLOR_NEW | BCI_CMD_DEST_GBD;
- BCI_CMD_SET_ROP(swap_cmd,0xCC);
+ BCI_CMD_SRC_PBD_COLOR_NEW | BCI_CMD_DEST_GBD;
+ BCI_CMD_SET_ROP(swap_cmd, 0xCC);
for (i = 0; i < nbox; ++i) {
- drm_clip_rect_t box;
- DRM_COPY_FROM_USER_UNCHECKED(&box, &usr_boxes[i], sizeof(box));
-
BEGIN_DMA(6);
DMA_WRITE(swap_cmd);
DMA_WRITE(dev_priv->back_offset);
DMA_WRITE(dev_priv->back_bd);
- DMA_WRITE(BCI_X_Y(box.x1, box.y1));
- DMA_WRITE(BCI_X_Y(box.x1, box.y1));
- DMA_WRITE(BCI_W_H(box.x2-box.x1, box.y2-box.y1));
+ DMA_WRITE(BCI_X_Y(boxes[i].x1, boxes[i].y1));
+ DMA_WRITE(BCI_X_Y(boxes[i].x1, boxes[i].y1));
+ DMA_WRITE(BCI_W_H(boxes[i].x2 - boxes[i].x1,
+ boxes[i].y2 - boxes[i].y1));
DMA_COMMIT();
}
return 0;
}
-static int savage_dispatch_draw(drm_savage_private_t *dev_priv,
- const drm_savage_cmd_header_t __user *start,
- const drm_savage_cmd_header_t __user *end,
- const drm_buf_t *dmabuf,
- const unsigned int __user *usr_vtxbuf,
+static int savage_dispatch_draw(drm_savage_private_t * dev_priv,
+ const drm_savage_cmd_header_t *start,
+ const drm_savage_cmd_header_t *end,
+ const drm_buf_t * dmabuf,
+ const unsigned int *vtxbuf,
unsigned int vb_size, unsigned int vb_stride,
unsigned int nbox,
- const drm_clip_rect_t __user *usr_boxes)
+ const drm_clip_rect_t *boxes)
{
unsigned int i, j;
int ret;
for (i = 0; i < nbox; ++i) {
- drm_clip_rect_t box;
- const drm_savage_cmd_header_t __user *usr_cmdbuf;
- DRM_COPY_FROM_USER_UNCHECKED(&box, &usr_boxes[i], sizeof(box));
- dev_priv->emit_clip_rect(dev_priv, &box);
+ const drm_savage_cmd_header_t *cmdbuf;
+ dev_priv->emit_clip_rect(dev_priv, &boxes[i]);
- usr_cmdbuf = start;
- while (usr_cmdbuf < end) {
+ cmdbuf = start;
+ while (cmdbuf < end) {
drm_savage_cmd_header_t cmd_header;
- DRM_COPY_FROM_USER_UNCHECKED(&cmd_header, usr_cmdbuf,
- sizeof(cmd_header));
- usr_cmdbuf++;
+ cmd_header = *cmdbuf;
+ cmdbuf++;
switch (cmd_header.cmd.cmd) {
case SAVAGE_CMD_DMA_PRIM:
ret = savage_dispatch_dma_prim(
case SAVAGE_CMD_VB_PRIM:
ret = savage_dispatch_vb_prim(
dev_priv, &cmd_header,
- (const uint32_t __user *)usr_vtxbuf,
- vb_size, vb_stride);
+ vtxbuf, vb_size, vb_stride);
break;
case SAVAGE_CMD_DMA_IDX:
j = (cmd_header.idx.count + 3) / 4;
/* j was check in savage_bci_cmdbuf */
- ret = savage_dispatch_dma_idx(
- dev_priv, &cmd_header,
- (const uint16_t __user *)usr_cmdbuf,
+ ret = savage_dispatch_dma_idx(dev_priv,
+ &cmd_header, (const uint16_t *)cmdbuf,
dmabuf);
- usr_cmdbuf += j;
+ cmdbuf += j;
break;
case SAVAGE_CMD_VB_IDX:
j = (cmd_header.idx.count + 3) / 4;
/* j was check in savage_bci_cmdbuf */
- ret = savage_dispatch_vb_idx(
- dev_priv, &cmd_header,
- (const uint16_t __user *)usr_cmdbuf,
- (const uint32_t __user *)usr_vtxbuf,
- vb_size, vb_stride);
- usr_cmdbuf += j;
+ ret = savage_dispatch_vb_idx(dev_priv,
+ &cmd_header, (const uint16_t *)cmdbuf,
+ (const uint32_t *)vtxbuf, vb_size,
+ vb_stride);
+ cmdbuf += j;
break;
default:
/* What's the best return code? EFAULT? */
drm_device_dma_t *dma = dev->dma;
drm_buf_t *dmabuf;
drm_savage_cmdbuf_t cmdbuf;
- drm_savage_cmd_header_t __user *usr_cmdbuf;
- drm_savage_cmd_header_t __user *first_draw_cmd;
- unsigned int __user *usr_vtxbuf;
- drm_clip_rect_t __user *usr_boxes;
+ drm_savage_cmd_header_t *kcmd_addr = NULL;
+ drm_savage_cmd_header_t *first_draw_cmd;
+ unsigned int *kvb_addr = NULL;
+ drm_clip_rect_t *kbox_addr = NULL;
unsigned int i, j;
int ret = 0;
DRM_DEBUG("\n");
-
+
LOCK_TEST_WITH_RETURN(dev, filp);
- DRM_COPY_FROM_USER_IOCTL(cmdbuf, (drm_savage_cmdbuf_t __user *)data,
+ DRM_COPY_FROM_USER_IOCTL(cmdbuf, (drm_savage_cmdbuf_t __user *) data,
sizeof(cmdbuf));
if (dma && dma->buflist) {
if (cmdbuf.dma_idx > dma->buf_count) {
- DRM_ERROR("vertex buffer index %u out of range (0-%u)\n",
- cmdbuf.dma_idx, dma->buf_count-1);
+ DRM_ERROR
+ ("vertex buffer index %u out of range (0-%u)\n",
+ cmdbuf.dma_idx, dma->buf_count - 1);
return DRM_ERR(EINVAL);
}
dmabuf = dma->buflist[cmdbuf.dma_idx];
dmabuf = NULL;
}
- usr_cmdbuf = (drm_savage_cmd_header_t __user *)cmdbuf.cmd_addr;
- usr_vtxbuf = (unsigned int __user *)cmdbuf.vb_addr;
- usr_boxes = (drm_clip_rect_t __user *)cmdbuf.box_addr;
- if ((cmdbuf.size && DRM_VERIFYAREA_READ(usr_cmdbuf, cmdbuf.size*8)) ||
- (cmdbuf.vb_size && DRM_VERIFYAREA_READ(
- usr_vtxbuf, cmdbuf.vb_size)) ||
- (cmdbuf.nbox && DRM_VERIFYAREA_READ(
- usr_boxes, cmdbuf.nbox*sizeof(drm_clip_rect_t))))
- return DRM_ERR(EFAULT);
+ /* Copy the user buffers into kernel temporary areas. This hasn't been
+ * a performance loss compared to VERIFYAREA_READ/
+ * COPY_FROM_USER_UNCHECKED when done in other drivers, and is correct
+ * for locking on FreeBSD.
+ */
+ if (cmdbuf.size) {
+ kcmd_addr = drm_alloc(cmdbuf.size * 8, DRM_MEM_DRIVER);
+ if (kcmd_addr == NULL)
+ return ENOMEM;
+
+ if (DRM_COPY_FROM_USER(kcmd_addr, cmdbuf.cmd_addr,
+ cmdbuf.size * 8))
+ {
+ drm_free(kcmd_addr, cmdbuf.size * 8, DRM_MEM_DRIVER);
+ return DRM_ERR(EFAULT);
+ }
+ cmdbuf.cmd_addr = kcmd_addr;
+ }
+ if (cmdbuf.vb_size) {
+ kvb_addr = drm_alloc(cmdbuf.vb_size, DRM_MEM_DRIVER);
+ if (kvb_addr == NULL) {
+ ret = DRM_ERR(ENOMEM);
+ goto done;
+ }
+
+ if (DRM_COPY_FROM_USER(kvb_addr, cmdbuf.vb_addr,
+ cmdbuf.vb_size)) {
+ ret = DRM_ERR(EFAULT);
+ goto done;
+ }
+ cmdbuf.vb_addr = kvb_addr;
+ }
+ if (cmdbuf.nbox) {
+ kbox_addr = drm_alloc(cmdbuf.nbox * sizeof(drm_clip_rect_t),
+ DRM_MEM_DRIVER);
+ if (kbox_addr == NULL) {
+ ret = DRM_ERR(ENOMEM);
+ goto done;
+ }
+
+ if (DRM_COPY_FROM_USER(kbox_addr, cmdbuf.box_addr,
+ cmdbuf.nbox * sizeof(drm_clip_rect_t))) {
+ ret = DRM_ERR(EFAULT);
+ goto done;
+ }
+ cmdbuf.box_addr = kbox_addr;
+ }
/* Make sure writes to DMA buffers are finished before sending
* DMA commands to the graphics hardware. */
first_draw_cmd = NULL;
while (i < cmdbuf.size) {
drm_savage_cmd_header_t cmd_header;
- DRM_COPY_FROM_USER_UNCHECKED(&cmd_header, usr_cmdbuf,
- sizeof(cmd_header));
- usr_cmdbuf++;
+ cmd_header = *(drm_savage_cmd_header_t *)cmdbuf.cmd_addr;
+ cmdbuf.cmd_addr++;
i++;
/* Group drawing commands with same state to minimize
case SAVAGE_CMD_DMA_PRIM:
case SAVAGE_CMD_VB_PRIM:
if (!first_draw_cmd)
- first_draw_cmd = usr_cmdbuf-1;
- usr_cmdbuf += j;
+ first_draw_cmd = cmdbuf.cmd_addr - 1;
+ cmdbuf.cmd_addr += j;
i += j;
break;
default:
if (first_draw_cmd) {
- ret = savage_dispatch_draw (
- dev_priv, first_draw_cmd, usr_cmdbuf-1,
- dmabuf, usr_vtxbuf, cmdbuf.vb_size,
- cmdbuf.vb_stride,
- cmdbuf.nbox, usr_boxes);
+ ret = savage_dispatch_draw(
+ dev_priv, first_draw_cmd,
+ cmdbuf.cmd_addr - 1,
+ dmabuf, cmdbuf.vb_addr, cmdbuf.vb_size,
+ cmdbuf.vb_stride,
+ cmdbuf.nbox, cmdbuf.box_addr);
if (ret != 0)
return ret;
first_draw_cmd = NULL;
DRM_ERROR("command SAVAGE_CMD_STATE extends "
"beyond end of command buffer\n");
DMA_FLUSH();
- return DRM_ERR(EINVAL);
+ ret = DRM_ERR(EINVAL);
+ goto done;
}
- ret = savage_dispatch_state(
- dev_priv, &cmd_header,
- (uint32_t __user *)usr_cmdbuf);
- usr_cmdbuf += j;
+ ret = savage_dispatch_state(dev_priv, &cmd_header,
+ (const uint32_t *)cmdbuf.cmd_addr);
+ cmdbuf.cmd_addr += j;
i += j;
break;
case SAVAGE_CMD_CLEAR:
DRM_ERROR("command SAVAGE_CMD_CLEAR extends "
"beyond end of command buffer\n");
DMA_FLUSH();
- return DRM_ERR(EINVAL);
+ ret = DRM_ERR(EINVAL);
+ goto done;
}
ret = savage_dispatch_clear(dev_priv, &cmd_header,
- usr_cmdbuf,
- cmdbuf.nbox, usr_boxes);
- usr_cmdbuf++;
+ cmdbuf.cmd_addr,
+ cmdbuf.nbox, cmdbuf.box_addr);
+ cmdbuf.cmd_addr++;
i++;
break;
case SAVAGE_CMD_SWAP:
- ret = savage_dispatch_swap(dev_priv,
- cmdbuf.nbox, usr_boxes);
+ ret = savage_dispatch_swap(dev_priv, cmdbuf.nbox,
+ cmdbuf.box_addr);
break;
default:
DRM_ERROR("invalid command 0x%x\n", cmd_header.cmd.cmd);
DMA_FLUSH();
- return DRM_ERR(EINVAL);
+ ret = DRM_ERR(EINVAL);
+ goto done;
}
if (ret != 0) {
DMA_FLUSH();
- return ret;
+ goto done;
}
}
if (first_draw_cmd) {
ret = savage_dispatch_draw (
- dev_priv, first_draw_cmd, usr_cmdbuf, dmabuf,
- usr_vtxbuf, cmdbuf.vb_size, cmdbuf.vb_stride,
- cmdbuf.nbox, usr_boxes);
+ dev_priv, first_draw_cmd, cmdbuf.cmd_addr, dmabuf,
+ cmdbuf.vb_addr, cmdbuf.vb_size, cmdbuf.vb_stride,
+ cmdbuf.nbox, cmdbuf.box_addr);
if (ret != 0) {
DMA_FLUSH();
- return ret;
+ goto done;
}
}
savage_freelist_put(dev, dmabuf);
}
- return 0;
+done:
+ /* If we didn't need to allocate them, these'll be NULL */
+ drm_free(kcmd_addr, cmdbuf.size * 8, DRM_MEM_DRIVER);
+ drm_free(kvb_addr, cmdbuf.vb_size, DRM_MEM_DRIVER);
+ drm_free(kbox_addr, cmdbuf.nbox * sizeof(drm_clip_rect_t),
+ DRM_MEM_DRIVER);
+
+ return ret;
}