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Diffstat (limited to 'linux-core/i810_dma.c')
-rw-r--r--linux-core/i810_dma.c325
1 files changed, 165 insertions, 160 deletions
diff --git a/linux-core/i810_dma.c b/linux-core/i810_dma.c
index 5792bf39..a9f860cd 100644
--- a/linux-core/i810_dma.c
+++ b/linux-core/i810_dma.c
@@ -11,11 +11,11 @@
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
- *
+ *
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
- *
+ *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
@@ -107,14 +107,14 @@ static drm_buf_t *i810_freelist_get(drm_device_t *dev)
drm_device_dma_t *dma = dev->dma;
int i;
int used;
-
+
/* Linear search might not be the best solution */
for (i = 0; i < dma->buf_count; i++) {
drm_buf_t *buf = dma->buflist[ i ];
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
/* In use is already a pointer */
- used = cmpxchg(buf_priv->in_use, I810_BUF_FREE,
+ used = cmpxchg(buf_priv->in_use, I810_BUF_FREE,
I810_BUF_CLIENT);
if(used == I810_BUF_FREE) {
return buf;
@@ -131,14 +131,14 @@ static int i810_freelist_put(drm_device_t *dev, drm_buf_t *buf)
{
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
int used;
-
+
/* In use is already a pointer */
used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE);
if(used != I810_BUF_CLIENT) {
DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
return -EINVAL;
}
-
+
return 0;
}
@@ -166,10 +166,10 @@ int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
dev_priv = dev->dev_private;
buf = dev_priv->mmap_buffer;
buf_priv = buf->dev_private;
-
+
vma->vm_flags |= (VM_IO | VM_DONTCOPY);
vma->vm_file = filp;
-
+
buf_priv->currently_mapped = I810_BUF_MAPPED;
unlock_kernel();
@@ -196,9 +196,9 @@ static int i810_map_buffer(drm_buf_t *buf, struct file *filp)
old_fops = filp->f_op;
filp->f_op = &i810_buffer_fops;
dev_priv->mmap_buffer = buf;
- buf_priv->virtual = (void *)do_mmap(filp, 0, buf->total,
+ buf_priv->virtual = (void *)do_mmap(filp, 0, buf->total,
PROT_READ|PROT_WRITE,
- MAP_SHARED,
+ MAP_SHARED,
buf->bus_address);
dev_priv->mmap_buffer = NULL;
filp->f_op = old_fops;
@@ -222,15 +222,15 @@ static int i810_unmap_buffer(drm_buf_t *buf)
int retcode = 0;
if(VM_DONTCOPY != 0) {
- if(buf_priv->currently_mapped != I810_BUF_MAPPED)
+ if(buf_priv->currently_mapped != I810_BUF_MAPPED)
return -EINVAL;
down(&current->mm->mmap_sem);
#if LINUX_VERSION_CODE < 0x020399
- retcode = do_munmap((unsigned long)buf_priv->virtual,
+ retcode = do_munmap((unsigned long)buf_priv->virtual,
(size_t) buf->total);
#else
- retcode = do_munmap(current->mm,
- (unsigned long)buf_priv->virtual,
+ retcode = do_munmap(current->mm,
+ (unsigned long)buf_priv->virtual,
(size_t) buf->total);
#endif
up(&current->mm->mmap_sem);
@@ -241,7 +241,7 @@ static int i810_unmap_buffer(drm_buf_t *buf)
return retcode;
}
-static int i810_dma_get_buffer(drm_device_t *dev, drm_i810_dma_t *d,
+static int i810_dma_get_buffer(drm_device_t *dev, drm_i810_dma_t *d,
struct file *filp)
{
drm_file_t *priv = filp->private_data;
@@ -255,16 +255,16 @@ static int i810_dma_get_buffer(drm_device_t *dev, drm_i810_dma_t *d,
DRM_DEBUG("%s retcode %d\n", __FUNCTION__, retcode);
goto out_get_buf;
}
-
+
retcode = i810_map_buffer(buf, filp);
if(retcode) {
i810_freelist_put(dev, buf);
- DRM_DEBUG("mapbuf failed in %s retcode %d\n",
+ DRM_DEBUG("mapbuf failed in %s retcode %d\n",
__FUNCTION__, retcode);
goto out_get_buf;
}
buf->pid = priv->pid;
- buf_priv = buf->dev_private;
+ buf_priv = buf->dev_private;
d->granted = 1;
d->request_idx = buf->idx;
d->request_size = buf->total;
@@ -277,22 +277,22 @@ out_get_buf:
static unsigned long i810_alloc_page(drm_device_t *dev)
{
unsigned long address;
-
+
address = __get_free_page(GFP_KERNEL);
- if(address == 0UL)
+ if(address == 0UL)
return 0;
-
+
atomic_inc(&virt_to_page(address)->count);
set_bit(PG_locked, &virt_to_page(address)->flags);
-
+
return address;
}
static void i810_free_page(drm_device_t *dev, unsigned long page)
{
- if(page == 0UL)
+ if(page == 0UL)
return;
-
+
atomic_dec(&virt_to_page(page)->count);
clear_bit(PG_locked, &virt_to_page(page)->flags);
wake_up(&virt_to_page(page)->wait);
@@ -306,9 +306,9 @@ static int i810_dma_cleanup(drm_device_t *dev)
if(dev->dev_private) {
int i;
- drm_i810_private_t *dev_priv =
+ drm_i810_private_t *dev_priv =
(drm_i810_private_t *) dev->dev_private;
-
+
if(dev_priv->ring.virtual_start) {
drm_ioremapfree((void *) dev_priv->ring.virtual_start,
dev_priv->ring.Size);
@@ -318,7 +318,7 @@ static int i810_dma_cleanup(drm_device_t *dev)
/* Need to rewrite hardware status page */
I810_WRITE(0x02080, 0x1ffff000);
}
- drm_free(dev->dev_private, sizeof(drm_i810_private_t),
+ drm_free(dev->dev_private, sizeof(drm_i810_private_t),
DRM_MEM_DRIVER);
dev->dev_private = NULL;
@@ -342,14 +342,14 @@ static int i810_wait_ring(drm_device_t *dev, int n)
end = jiffies + (HZ*3);
while (ring->space < n) {
int i;
-
+
ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
ring->space = ring->head - (ring->tail+8);
if (ring->space < 0) ring->space += ring->Size;
-
+
if (ring->head != last_head)
end = jiffies + (HZ*3);
-
+
iters++;
if((signed)(end - jiffies) <= 0) {
DRM_ERROR("space: %d wanted %d\n", ring->space, n);
@@ -360,7 +360,7 @@ static int i810_wait_ring(drm_device_t *dev, int n)
for (i = 0 ; i < 2000 ; i++) ;
}
-out_wait_ring:
+out_wait_ring:
return iters;
}
@@ -368,7 +368,7 @@ static void i810_kernel_lost_context(drm_device_t *dev)
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
-
+
ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
ring->tail = I810_READ(LP_RING + RING_TAIL);
ring->space = ring->head - (ring->tail+8);
@@ -382,7 +382,7 @@ static int i810_freelist_init(drm_device_t *dev)
int my_idx = 24;
u32 *hw_status = (u32 *)(dev_priv->hw_status_page + my_idx);
int i;
-
+
if(dma->buf_count > 1019) {
/* Not enough space in the status page for the freelist */
return -EINVAL;
@@ -391,20 +391,20 @@ static int i810_freelist_init(drm_device_t *dev)
for (i = 0; i < dma->buf_count; i++) {
drm_buf_t *buf = dma->buflist[ i ];
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
-
+
buf_priv->in_use = hw_status++;
buf_priv->my_use_idx = my_idx;
my_idx += 4;
*buf_priv->in_use = I810_BUF_FREE;
- buf_priv->kernel_virtual = drm_ioremap(buf->bus_address,
+ buf_priv->kernel_virtual = drm_ioremap(buf->bus_address,
buf->total);
}
return 0;
}
-static int i810_dma_initialize(drm_device_t *dev,
+static int i810_dma_initialize(drm_device_t *dev,
drm_i810_private_t *dev_priv,
drm_i810_init_t *init)
{
@@ -419,27 +419,27 @@ static int i810_dma_initialize(drm_device_t *dev,
DRM_ERROR("ring_map or buffer_map are invalid\n");
return -EINVAL;
}
-
+
dev_priv->ring_map_idx = init->ring_map_idx;
dev_priv->buffer_map_idx = init->buffer_map_idx;
sarea_map = dev->maplist[0];
- dev_priv->sarea_priv = (drm_i810_sarea_t *)
- ((u8 *)sarea_map->handle +
+ dev_priv->sarea_priv = (drm_i810_sarea_t *)
+ ((u8 *)sarea_map->handle +
init->sarea_priv_offset);
atomic_set(&dev_priv->flush_done, 0);
init_waitqueue_head(&dev_priv->flush_queue);
-
+
dev_priv->ring.Start = init->ring_start;
dev_priv->ring.End = init->ring_end;
dev_priv->ring.Size = init->ring_size;
- dev_priv->ring.virtual_start = drm_ioremap(dev->agp->base +
- init->ring_start,
+ dev_priv->ring.virtual_start = drm_ioremap(dev->agp->base +
+ init->ring_start,
init->ring_size);
dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
-
+
if (dev_priv->ring.virtual_start == NULL) {
i810_dma_cleanup(dev);
DRM_ERROR("can not ioremap virtual address for"
@@ -456,8 +456,8 @@ static int i810_dma_initialize(drm_device_t *dev,
dev_priv->front_di1 = init->front_offset | init->pitch_bits;
dev_priv->back_di1 = init->back_offset | init->pitch_bits;
dev_priv->zi1 = init->depth_offset | init->pitch_bits;
-
-
+
+
/* Program Hardware Status Page */
dev_priv->hw_status_page = i810_alloc_page(dev);
memset((void *) dev_priv->hw_status_page, 0, PAGE_SIZE);
@@ -467,10 +467,10 @@ static int i810_dma_initialize(drm_device_t *dev,
return -ENOMEM;
}
DRM_DEBUG("hw status page @ %lx\n", dev_priv->hw_status_page);
-
+
I810_WRITE(0x02080, virt_to_bus((void *)dev_priv->hw_status_page));
DRM_DEBUG("Enabled hardware status page\n");
-
+
/* Now we need to init our freelist */
if(i810_freelist_init(dev) != 0) {
i810_dma_cleanup(dev);
@@ -489,13 +489,13 @@ int i810_dma_init(struct inode *inode, struct file *filp,
drm_i810_private_t *dev_priv;
drm_i810_init_t init;
int retcode = 0;
-
- copy_from_user_ret(&init, (drm_i810_init_t *)arg,
- sizeof(init), -EFAULT);
-
+
+ if (copy_from_user(&init, (drm_i810_init_t *)arg, sizeof(init)))
+ return -EFAULT;
+
switch(init.func) {
case I810_INIT_DMA:
- dev_priv = drm_alloc(sizeof(drm_i810_private_t),
+ dev_priv = drm_alloc(sizeof(drm_i810_private_t),
DRM_MEM_DRIVER);
if(dev_priv == NULL) return -ENOMEM;
retcode = i810_dma_initialize(dev, dev_priv, &init);
@@ -507,7 +507,7 @@ int i810_dma_init(struct inode *inode, struct file *filp,
retcode = -EINVAL;
break;
}
-
+
return retcode;
}
@@ -519,9 +519,9 @@ int i810_dma_init(struct inode *inode, struct file *filp,
* Use 'volatile' & local var tmp to force the emitted values to be
* identical to the verified ones.
*/
-static void i810EmitContextVerified( drm_device_t *dev,
- volatile unsigned int *code )
-{
+static void i810EmitContextVerified( drm_device_t *dev,
+ volatile unsigned int *code )
+{
drm_i810_private_t *dev_priv = dev->dev_private;
int i, j = 0;
unsigned int tmp;
@@ -539,22 +539,22 @@ static void i810EmitContextVerified( drm_device_t *dev,
tmp = code[i];
if ((tmp & (7<<29)) == (3<<29) &&
- (tmp & (0x1f<<24)) < (0x1d<<24))
+ (tmp & (0x1f<<24)) < (0x1d<<24))
{
- OUT_RING( tmp );
+ OUT_RING( tmp );
j++;
- }
+ }
}
- if (j & 1)
- OUT_RING( 0 );
+ if (j & 1)
+ OUT_RING( 0 );
ADVANCE_LP_RING();
}
-static void i810EmitTexVerified( drm_device_t *dev,
- volatile unsigned int *code )
-{
+static void i810EmitTexVerified( drm_device_t *dev,
+ volatile unsigned int *code )
+{
drm_i810_private_t *dev_priv = dev->dev_private;
int i, j = 0;
unsigned int tmp;
@@ -571,15 +571,15 @@ static void i810EmitTexVerified( drm_device_t *dev,
tmp = code[i];
if ((tmp & (7<<29)) == (3<<29) &&
- (tmp & (0x1f<<24)) < (0x1d<<24))
+ (tmp & (0x1f<<24)) < (0x1d<<24))
{
- OUT_RING( tmp );
+ OUT_RING( tmp );
j++;
}
- }
-
- if (j & 1)
- OUT_RING( 0 );
+ }
+
+ if (j & 1)
+ OUT_RING( 0 );
ADVANCE_LP_RING();
}
@@ -587,9 +587,9 @@ static void i810EmitTexVerified( drm_device_t *dev,
/* Need to do some additional checking when setting the dest buffer.
*/
-static void i810EmitDestVerified( drm_device_t *dev,
- volatile unsigned int *code )
-{
+static void i810EmitDestVerified( drm_device_t *dev,
+ volatile unsigned int *code )
+{
drm_i810_private_t *dev_priv = dev->dev_private;
unsigned int tmp;
RING_LOCALS;
@@ -653,9 +653,9 @@ static void i810EmitState( drm_device_t *dev )
-/* need to verify
+/* need to verify
*/
-static void i810_dma_dispatch_clear( drm_device_t *dev, int flags,
+static void i810_dma_dispatch_clear( drm_device_t *dev, int flags,
unsigned int clear_color,
unsigned int clear_zval )
{
@@ -686,10 +686,10 @@ static void i810_dma_dispatch_clear( drm_device_t *dev, int flags,
pbox->y2 > dev_priv->h)
continue;
- if ( flags & I810_FRONT ) {
+ if ( flags & I810_FRONT ) {
DRM_DEBUG("clear front\n");
- BEGIN_LP_RING( 6 );
- OUT_RING( BR00_BITBLT_CLIENT |
+ BEGIN_LP_RING( 6 );
+ OUT_RING( BR00_BITBLT_CLIENT |
BR00_OP_COLOR_BLT | 0x3 );
OUT_RING( BR13_SOLID_PATTERN | (0xF0 << 16) | pitch );
OUT_RING( (height << 16) | width );
@@ -701,8 +701,8 @@ static void i810_dma_dispatch_clear( drm_device_t *dev, int flags,
if ( flags & I810_BACK ) {
DRM_DEBUG("clear back\n");
- BEGIN_LP_RING( 6 );
- OUT_RING( BR00_BITBLT_CLIENT |
+ BEGIN_LP_RING( 6 );
+ OUT_RING( BR00_BITBLT_CLIENT |
BR00_OP_COLOR_BLT | 0x3 );
OUT_RING( BR13_SOLID_PATTERN | (0xF0 << 16) | pitch );
OUT_RING( (height << 16) | width );
@@ -714,8 +714,8 @@ static void i810_dma_dispatch_clear( drm_device_t *dev, int flags,
if ( flags & I810_DEPTH ) {
DRM_DEBUG("clear depth\n");
- BEGIN_LP_RING( 6 );
- OUT_RING( BR00_BITBLT_CLIENT |
+ BEGIN_LP_RING( 6 );
+ OUT_RING( BR00_BITBLT_CLIENT |
BR00_OP_COLOR_BLT | 0x3 );
OUT_RING( BR13_SOLID_PATTERN | (0xF0 << 16) | pitch );
OUT_RING( (height << 16) | width );
@@ -746,7 +746,7 @@ static void i810_dma_dispatch_swap( drm_device_t *dev )
if (nbox > I810_NR_SAREA_CLIPRECTS)
nbox = I810_NR_SAREA_CLIPRECTS;
- for (i = 0 ; i < nbox; i++, pbox++)
+ for (i = 0 ; i < nbox; i++, pbox++)
{
unsigned int w = pbox->x2 - pbox->x1;
unsigned int h = pbox->y2 - pbox->y1;
@@ -758,7 +758,7 @@ static void i810_dma_dispatch_swap( drm_device_t *dev )
pbox->x2 > dev_priv->w ||
pbox->y2 > dev_priv->h)
continue;
-
+
DRM_DEBUG("dispatch swap %d,%d-%d,%d!\n",
pbox[i].x1, pbox[i].y1,
pbox[i].x2, pbox[i].y2);
@@ -768,14 +768,14 @@ static void i810_dma_dispatch_swap( drm_device_t *dev )
OUT_RING( pitch | (0xCC << 16));
OUT_RING( (h << 16) | (w * cpp));
OUT_RING( dst );
- OUT_RING( pitch );
+ OUT_RING( pitch );
OUT_RING( start );
ADVANCE_LP_RING();
}
}
-static void i810_dma_dispatch_vertex(drm_device_t *dev,
+static void i810_dma_dispatch_vertex(drm_device_t *dev,
drm_buf_t *buf,
int discard,
int used)
@@ -786,30 +786,30 @@ static void i810_dma_dispatch_vertex(drm_device_t *dev,
drm_clip_rect_t *box = sarea_priv->boxes;
int nbox = sarea_priv->nbox;
unsigned long address = (unsigned long)buf->bus_address;
- unsigned long start = address - dev->agp->base;
+ unsigned long start = address - dev->agp->base;
int i = 0, u;
RING_LOCALS;
i810_kernel_lost_context(dev);
- if (nbox > I810_NR_SAREA_CLIPRECTS)
+ if (nbox > I810_NR_SAREA_CLIPRECTS)
nbox = I810_NR_SAREA_CLIPRECTS;
if (discard) {
- u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
+ u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
I810_BUF_HARDWARE);
if(u != I810_BUF_CLIENT) {
DRM_DEBUG("xxxx 2\n");
}
}
- if (used > 4*1024)
+ if (used > 4*1024)
used = 0;
if (sarea_priv->dirty)
i810EmitState( dev );
- DRM_DEBUG("dispatch vertex addr 0x%lx, used 0x%x nbox %d\n",
+ DRM_DEBUG("dispatch vertex addr 0x%lx, used 0x%x nbox %d\n",
address, used, nbox);
dev_priv->counter++;
@@ -823,7 +823,7 @@ static void i810_dma_dispatch_vertex(drm_device_t *dev,
*(u32 *)buf_priv->virtual = (GFX_OP_PRIMITIVE |
sarea_priv->vertex_prim |
((used/4)-2));
-
+
if (used & 4) {
*(u32 *)((u32)buf_priv->virtual + used) = 0;
used += 4;
@@ -831,26 +831,26 @@ static void i810_dma_dispatch_vertex(drm_device_t *dev,
i810_unmap_buffer(buf);
}
-
+
if (used) {
do {
if (i < nbox) {
BEGIN_LP_RING(4);
- OUT_RING( GFX_OP_SCISSOR | SC_UPDATE_SCISSOR |
+ OUT_RING( GFX_OP_SCISSOR | SC_UPDATE_SCISSOR |
SC_ENABLE );
OUT_RING( GFX_OP_SCISSOR_INFO );
OUT_RING( box[i].x1 | (box[i].y1<<16) );
OUT_RING( (box[i].x2-1) | ((box[i].y2-1)<<16) );
ADVANCE_LP_RING();
}
-
+
BEGIN_LP_RING(4);
OUT_RING( CMD_OP_BATCH_BUFFER );
OUT_RING( start | BB1_PROTECTED );
OUT_RING( start + used - 4 );
OUT_RING( 0 );
ADVANCE_LP_RING();
-
+
} while (++i < nbox);
}
@@ -878,15 +878,15 @@ static void i810_dma_service(int irq, void *device, struct pt_regs *regs)
{
drm_device_t *dev = (drm_device_t *)device;
u16 temp;
-
+
atomic_inc(&dev->total_irq);
temp = I810_READ16(I810REG_INT_IDENTITY_R);
temp = temp & ~(0x6000);
- if(temp != 0) I810_WRITE16(I810REG_INT_IDENTITY_R,
+ if(temp != 0) I810_WRITE16(I810REG_INT_IDENTITY_R,
temp); /* Clear all interrupts */
else
return;
-
+
queue_task(&dev->tq, &tq_immediate);
mark_bh(IMMEDIATE_BH);
}
@@ -904,9 +904,9 @@ int i810_irq_install(drm_device_t *dev, int irq)
{
int retcode;
u16 temp;
-
+
if (!irq) return -EINVAL;
-
+
down(&dev->struct_sem);
if (dev->irq) {
up(&dev->struct_sem);
@@ -914,14 +914,14 @@ int i810_irq_install(drm_device_t *dev, int irq)
}
dev->irq = irq;
up(&dev->struct_sem);
-
+
DRM_DEBUG( "Interrupt Install : %d\n", irq);
DRM_DEBUG("%d\n", irq);
dev->context_flag = 0;
dev->interrupt_flag = 0;
dev->dma_flag = 0;
-
+
dev->dma->next_buffer = NULL;
dev->dma->next_queue = NULL;
dev->dma->this_buffer = NULL;
@@ -935,7 +935,7 @@ int i810_irq_install(drm_device_t *dev, int irq)
temp = I810_READ16(I810REG_HWSTAM);
temp = temp & 0x6000;
I810_WRITE16(I810REG_HWSTAM, temp);
-
+
temp = I810_READ16(I810REG_INT_MASK_R);
temp = temp & 0x6000;
I810_WRITE16(I810REG_INT_MASK_R, temp); /* Unmask interrupts */
@@ -957,7 +957,7 @@ int i810_irq_install(drm_device_t *dev, int irq)
temp = I810_READ16(I810REG_INT_ENABLE_R);
temp = temp & 0x6000;
temp = temp | 0x0003;
- I810_WRITE16(I810REG_INT_ENABLE_R,
+ I810_WRITE16(I810REG_INT_ENABLE_R,
temp); /* Enable bp & user interrupts */
return 0;
}
@@ -974,20 +974,20 @@ int i810_irq_uninstall(drm_device_t *dev)
irq = dev->irq;
dev->irq = 0;
up(&dev->struct_sem);
-
+
if (!irq) return -EINVAL;
- DRM_DEBUG( "Interrupt UnInstall: %d\n", irq);
+ DRM_DEBUG( "Interrupt UnInstall: %d\n", irq);
DRM_DEBUG("%d\n", irq);
-
+
temp = I810_READ16(I810REG_INT_IDENTITY_R);
temp = temp & ~(0x6000);
- if(temp != 0) I810_WRITE16(I810REG_INT_IDENTITY_R,
+ if(temp != 0) I810_WRITE16(I810REG_INT_IDENTITY_R,
temp); /* Clear all interrupts */
-
+
temp = I810_READ16(I810REG_INT_ENABLE_R);
temp = temp & 0x6000;
- I810_WRITE16(I810REG_INT_ENABLE_R,
+ I810_WRITE16(I810REG_INT_ENABLE_R,
temp); /* Disable all interrupts */
free_irq(irq, dev);
@@ -1002,11 +1002,12 @@ int i810_control(struct inode *inode, struct file *filp, unsigned int cmd,
drm_device_t *dev = priv->dev;
drm_control_t ctl;
int retcode;
-
+
DRM_DEBUG( "i810_control\n");
- copy_from_user_ret(&ctl, (drm_control_t *)arg, sizeof(ctl), -EFAULT);
-
+ if (copy_from_user(&ctl, (drm_control_t *)arg, sizeof(ctl)))
+ return -EFAULT;
+
switch (ctl.func) {
case DRM_INST_HANDLER:
if ((retcode = i810_irq_install(dev, ctl.irq)))
@@ -1062,7 +1063,7 @@ static void i810_dma_quiescent(drm_device_t *dev)
{
DECLARE_WAITQUEUE(entry, current);
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
- unsigned long end;
+ unsigned long end;
if(dev_priv == NULL) {
return;
@@ -1071,23 +1072,23 @@ static void i810_dma_quiescent(drm_device_t *dev)
current->state = TASK_INTERRUPTIBLE;
add_wait_queue(&dev_priv->flush_queue, &entry);
end = jiffies + (HZ*3);
-
+
for (;;) {
i810_dma_quiescent_emit(dev);
if (atomic_read(&dev_priv->flush_done) == 1) break;
if((signed)(end - jiffies) <= 0) {
DRM_ERROR("lockup\n");
break;
- }
+ }
schedule_timeout(HZ*3);
if (signal_pending(current)) {
break;
}
}
-
+
current->state = TASK_RUNNING;
remove_wait_queue(&dev_priv->flush_queue, &entry);
-
+
return;
}
@@ -1097,7 +1098,7 @@ static int i810_flush_queue(drm_device_t *dev)
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
drm_device_dma_t *dma = dev->dma;
unsigned long end;
- int i, ret = 0;
+ int i, ret = 0;
if(dev_priv == NULL) {
return 0;
@@ -1112,14 +1113,14 @@ static int i810_flush_queue(drm_device_t *dev)
if((signed)(end - jiffies) <= 0) {
DRM_ERROR("lockup\n");
break;
- }
+ }
schedule_timeout(HZ*3);
if (signal_pending(current)) {
ret = -EINTR; /* Can't restart */
break;
}
}
-
+
current->state = TASK_RUNNING;
remove_wait_queue(&dev_priv->flush_queue, &entry);
@@ -1127,8 +1128,8 @@ static int i810_flush_queue(drm_device_t *dev)
for (i = 0; i < dma->buf_count; i++) {
drm_buf_t *buf = dma->buflist[ i ];
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
-
- int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE,
+
+ int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE,
I810_BUF_FREE);
if (used == I810_BUF_HARDWARE)
@@ -1155,9 +1156,9 @@ void i810_reclaim_buffers(drm_device_t *dev, pid_t pid)
for (i = 0; i < dma->buf_count; i++) {
drm_buf_t *buf = dma->buflist[ i ];
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
-
+
if (buf->pid == pid && buf_priv) {
- int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
+ int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
I810_BUF_FREE);
if (used == I810_BUF_CLIENT)
@@ -1178,14 +1179,15 @@ int i810_lock(struct inode *inode, struct file *filp, unsigned int cmd,
int ret = 0;
drm_lock_t lock;
- copy_from_user_ret(&lock, (drm_lock_t *)arg, sizeof(lock), -EFAULT);
+ if (copy_from_user(&lock, (drm_lock_t *)arg, sizeof(lock)))
+ return -EFAULT;
if (lock.context == DRM_KERNEL_CONTEXT) {
DRM_ERROR("Process %d using kernel context %d\n",
current->pid, lock.context);
return -EINVAL;
}
-
+
DRM_DEBUG("%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n",
lock.context, current->pid, dev->lock.hw_lock->lock,
lock.flags);
@@ -1211,7 +1213,7 @@ int i810_lock(struct inode *inode, struct file *filp, unsigned int cmd,
atomic_inc(&dev->total_locks);
break; /* Got lock */
}
-
+
/* Contention */
atomic_inc(&dev->total_sleeps);
current->state = TASK_INTERRUPTIBLE;
@@ -1225,9 +1227,8 @@ int i810_lock(struct inode *inode, struct file *filp, unsigned int cmd,
current->state = TASK_RUNNING;
remove_wait_queue(&dev->lock.lock_queue, &entry);
}
-
+
if (!ret) {
-#if LINUX_VERSION_CODE >= 0x020400 /* KERNEL_VERSION(2,4,0) */
sigemptyset(&dev->sigmask);
sigaddset(&dev->sigmask, SIGSTOP);
sigaddset(&dev->sigmask, SIGTSTP);
@@ -1236,7 +1237,7 @@ int i810_lock(struct inode *inode, struct file *filp, unsigned int cmd,
dev->sigdata.context = lock.context;
dev->sigdata.lock = dev->lock.hw_lock;
block_all_signals(drm_notifier, &dev->sigdata, &dev->sigmask);
-#endif
+
if (lock.flags & _DRM_LOCK_QUIESCENT) {
DRM_DEBUG("_DRM_LOCK_QUIESCENT\n");
DRM_DEBUG("fred\n");
@@ -1247,12 +1248,12 @@ int i810_lock(struct inode *inode, struct file *filp, unsigned int cmd,
return ret;
}
-int i810_flush_ioctl(struct inode *inode, struct file *filp,
+int i810_flush_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
-
+
DRM_DEBUG("i810_flush_ioctl\n");
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_flush_ioctl called without lock held\n");
@@ -1272,12 +1273,12 @@ int i810_dma_vertex(struct inode *inode, struct file *filp,
drm_device_dma_t *dma = dev->dma;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
u32 *hw_status = (u32 *)dev_priv->hw_status_page;
- drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
- dev_priv->sarea_priv;
+ drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
+ dev_priv->sarea_priv;
drm_i810_vertex_t vertex;
- copy_from_user_ret(&vertex, (drm_i810_vertex_t *)arg, sizeof(vertex),
- -EFAULT);
+ if (copy_from_user(&vertex, (drm_i810_vertex_t *)arg, sizeof(vertex)))
+ return -EFAULT;
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_dma_vertex called without lock held\n");
@@ -1287,15 +1288,15 @@ int i810_dma_vertex(struct inode *inode, struct file *filp,
DRM_DEBUG("i810 dma vertex, idx %d used %d discard %d\n",
vertex.idx, vertex.used, vertex.discard);
- i810_dma_dispatch_vertex( dev,
- dma->buflist[ vertex.idx ],
+ i810_dma_dispatch_vertex( dev,
+ dma->buflist[ vertex.idx ],
vertex.discard, vertex.used );
atomic_add(vertex.used, &dma->total_bytes);
atomic_inc(&dma->total_dmas);
sarea_priv->last_enqueue = dev_priv->counter-1;
sarea_priv->last_dispatch = (int) hw_status[5];
-
+
return 0;
}
@@ -1308,16 +1309,16 @@ int i810_clear_bufs(struct inode *inode, struct file *filp,
drm_device_t *dev = priv->dev;
drm_i810_clear_t clear;
- copy_from_user_ret(&clear, (drm_i810_clear_t *)arg, sizeof(clear),
- -EFAULT);
-
+ if (copy_from_user(&clear, (drm_i810_clear_t *)arg, sizeof(clear)))
+ return -EFAULT;
+
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_clear_bufs called without lock held\n");
return -EINVAL;
}
- i810_dma_dispatch_clear( dev, clear.flags,
- clear.clear_color,
+ i810_dma_dispatch_clear( dev, clear.flags,
+ clear.clear_color,
clear.clear_depth );
return 0;
}
@@ -1327,7 +1328,7 @@ int i810_swap_bufs(struct inode *inode, struct file *filp,
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
-
+
DRM_DEBUG("i810_swap_bufs\n");
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
@@ -1346,8 +1347,8 @@ int i810_getage(struct inode *inode, struct file *filp, unsigned int cmd,
drm_device_t *dev = priv->dev;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
u32 *hw_status = (u32 *)dev_priv->hw_status_page;
- drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
- dev_priv->sarea_priv;
+ drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
+ dev_priv->sarea_priv;
sarea_priv->last_dispatch = (int) hw_status[5];
return 0;
@@ -1362,17 +1363,18 @@ int i810_getbuf(struct inode *inode, struct file *filp, unsigned int cmd,
drm_i810_dma_t d;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
u32 *hw_status = (u32 *)dev_priv->hw_status_page;
- drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
- dev_priv->sarea_priv;
+ drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
+ dev_priv->sarea_priv;
DRM_DEBUG("getbuf\n");
- copy_from_user_ret(&d, (drm_i810_dma_t *)arg, sizeof(d), -EFAULT);
-
+ if (copy_from_user(&d, (drm_i810_dma_t *)arg, sizeof(d)))
+ return -EFAULT;
+
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_dma called without lock held\n");
return -EINVAL;
}
-
+
d.granted = 0;
retcode = i810_dma_get_buffer(dev, &d, filp);
@@ -1380,7 +1382,8 @@ int i810_getbuf(struct inode *inode, struct file *filp, unsigned int cmd,
DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
current->pid, retcode, d.granted);
- copy_to_user_ret((drm_dma_t *)arg, &d, sizeof(d), -EFAULT);
+ if (copy_to_user((drm_dma_t *)arg, &d, sizeof(d)))
+ return -EFAULT;
sarea_priv->last_dispatch = (int) hw_status[5];
return retcode;
@@ -1394,8 +1397,8 @@ int i810_copybuf(struct inode *inode, struct file *filp, unsigned int cmd,
drm_i810_copy_t d;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
u32 *hw_status = (u32 *)dev_priv->hw_status_page;
- drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
- dev_priv->sarea_priv;
+ drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
+ dev_priv->sarea_priv;
drm_buf_t *buf;
drm_i810_buf_priv_t *buf_priv;
drm_device_dma_t *dma = dev->dma;
@@ -1404,15 +1407,17 @@ int i810_copybuf(struct inode *inode, struct file *filp, unsigned int cmd,
DRM_ERROR("i810_dma called without lock held\n");
return -EINVAL;
}
-
- copy_from_user_ret(&d, (drm_i810_copy_t *)arg, sizeof(d), -EFAULT);
+
+ if (copy_from_user(&d, (drm_i810_copy_t *)arg, sizeof(d)))
+ return -EFAULT;
if(d.idx > dma->buf_count) return -EINVAL;
buf = dma->buflist[ d.idx ];
buf_priv = buf->dev_private;
if (buf_priv->currently_mapped != I810_BUF_MAPPED) return -EPERM;
- copy_from_user_ret(buf_priv->virtual, d.address, d.used, -EFAULT);
+ if (copy_from_user(buf_priv->virtual, d.address, d.used))
+ return -EFAULT;
sarea_priv->last_dispatch = (int) hw_status[5];
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-21 16:22:25 +0000