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path: root/drivers/gpu/drm/i810/i810_dma.c
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Diffstat (limited to 'drivers/gpu/drm/i810/i810_dma.c')
-rw-r--r--drivers/gpu/drm/i810/i810_dma.c125
1 files changed, 67 insertions, 58 deletions
diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c
index 997d91707ad2..0e6c131313d9 100644
--- a/drivers/gpu/drm/i810/i810_dma.c
+++ b/drivers/gpu/drm/i810/i810_dma.c
@@ -37,6 +37,7 @@
#include <linux/interrupt.h> /* For task queue support */
#include <linux/delay.h>
#include <linux/slab.h>
+#include <linux/smp_lock.h>
#include <linux/pagemap.h>
#define I810_BUF_FREE 2
@@ -60,9 +61,8 @@ static struct drm_buf *i810_freelist_get(struct drm_device * dev)
/* In use is already a pointer */
used = cmpxchg(buf_priv->in_use, I810_BUF_FREE,
I810_BUF_CLIENT);
- if (used == I810_BUF_FREE) {
+ if (used == I810_BUF_FREE)
return buf;
- }
}
return NULL;
}
@@ -71,7 +71,7 @@ static struct drm_buf *i810_freelist_get(struct drm_device * dev)
* yet, the hardware updates in use for us once its on the ring buffer.
*/
-static int i810_freelist_put(struct drm_device * dev, struct drm_buf * buf)
+static int i810_freelist_put(struct drm_device *dev, struct drm_buf *buf)
{
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
int used;
@@ -121,7 +121,7 @@ static const struct file_operations i810_buffer_fops = {
.fasync = drm_fasync,
};
-static int i810_map_buffer(struct drm_buf * buf, struct drm_file *file_priv)
+static int i810_map_buffer(struct drm_buf *buf, struct drm_file *file_priv)
{
struct drm_device *dev = file_priv->minor->dev;
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
@@ -152,7 +152,7 @@ static int i810_map_buffer(struct drm_buf * buf, struct drm_file *file_priv)
return retcode;
}
-static int i810_unmap_buffer(struct drm_buf * buf)
+static int i810_unmap_buffer(struct drm_buf *buf)
{
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
int retcode = 0;
@@ -172,7 +172,7 @@ static int i810_unmap_buffer(struct drm_buf * buf)
return retcode;
}
-static int i810_dma_get_buffer(struct drm_device * dev, drm_i810_dma_t * d,
+static int i810_dma_get_buffer(struct drm_device *dev, drm_i810_dma_t *d,
struct drm_file *file_priv)
{
struct drm_buf *buf;
@@ -202,7 +202,7 @@ static int i810_dma_get_buffer(struct drm_device * dev, drm_i810_dma_t * d,
return retcode;
}
-static int i810_dma_cleanup(struct drm_device * dev)
+static int i810_dma_cleanup(struct drm_device *dev)
{
struct drm_device_dma *dma = dev->dma;
@@ -218,9 +218,8 @@ static int i810_dma_cleanup(struct drm_device * dev)
drm_i810_private_t *dev_priv =
(drm_i810_private_t *) dev->dev_private;
- if (dev_priv->ring.virtual_start) {
+ if (dev_priv->ring.virtual_start)
drm_core_ioremapfree(&dev_priv->ring.map, dev);
- }
if (dev_priv->hw_status_page) {
pci_free_consistent(dev->pdev, PAGE_SIZE,
dev_priv->hw_status_page,
@@ -242,7 +241,7 @@ static int i810_dma_cleanup(struct drm_device * dev)
return 0;
}
-static int i810_wait_ring(struct drm_device * dev, int n)
+static int i810_wait_ring(struct drm_device *dev, int n)
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
@@ -271,11 +270,11 @@ static int i810_wait_ring(struct drm_device * dev, int n)
udelay(1);
}
- out_wait_ring:
+out_wait_ring:
return iters;
}
-static void i810_kernel_lost_context(struct drm_device * dev)
+static void i810_kernel_lost_context(struct drm_device *dev)
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
@@ -287,7 +286,7 @@ static void i810_kernel_lost_context(struct drm_device * dev)
ring->space += ring->Size;
}
-static int i810_freelist_init(struct drm_device * dev, drm_i810_private_t * dev_priv)
+static int i810_freelist_init(struct drm_device *dev, drm_i810_private_t *dev_priv)
{
struct drm_device_dma *dma = dev->dma;
int my_idx = 24;
@@ -322,9 +321,9 @@ static int i810_freelist_init(struct drm_device * dev, drm_i810_private_t * dev_
return 0;
}
-static int i810_dma_initialize(struct drm_device * dev,
- drm_i810_private_t * dev_priv,
- drm_i810_init_t * init)
+static int i810_dma_initialize(struct drm_device *dev,
+ drm_i810_private_t *dev_priv,
+ drm_i810_init_t *init)
{
struct drm_map_list *r_list;
memset(dev_priv, 0, sizeof(drm_i810_private_t));
@@ -462,7 +461,7 @@ static int i810_dma_init(struct drm_device *dev, void *data,
* Use 'volatile' & local var tmp to force the emitted values to be
* identical to the verified ones.
*/
-static void i810EmitContextVerified(struct drm_device * dev,
+static void i810EmitContextVerified(struct drm_device *dev,
volatile unsigned int *code)
{
drm_i810_private_t *dev_priv = dev->dev_private;
@@ -495,7 +494,7 @@ static void i810EmitContextVerified(struct drm_device * dev,
ADVANCE_LP_RING();
}
-static void i810EmitTexVerified(struct drm_device * dev, volatile unsigned int *code)
+static void i810EmitTexVerified(struct drm_device *dev, volatile unsigned int *code)
{
drm_i810_private_t *dev_priv = dev->dev_private;
int i, j = 0;
@@ -528,7 +527,7 @@ static void i810EmitTexVerified(struct drm_device * dev, volatile unsigned int *
/* Need to do some additional checking when setting the dest buffer.
*/
-static void i810EmitDestVerified(struct drm_device * dev,
+static void i810EmitDestVerified(struct drm_device *dev,
volatile unsigned int *code)
{
drm_i810_private_t *dev_priv = dev->dev_private;
@@ -563,7 +562,7 @@ static void i810EmitDestVerified(struct drm_device * dev,
ADVANCE_LP_RING();
}
-static void i810EmitState(struct drm_device * dev)
+static void i810EmitState(struct drm_device *dev)
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
@@ -594,7 +593,7 @@ static void i810EmitState(struct drm_device * dev)
/* need to verify
*/
-static void i810_dma_dispatch_clear(struct drm_device * dev, int flags,
+static void i810_dma_dispatch_clear(struct drm_device *dev, int flags,
unsigned int clear_color,
unsigned int clear_zval)
{
@@ -669,7 +668,7 @@ static void i810_dma_dispatch_clear(struct drm_device * dev, int flags,
}
}
-static void i810_dma_dispatch_swap(struct drm_device * dev)
+static void i810_dma_dispatch_swap(struct drm_device *dev)
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
@@ -715,8 +714,8 @@ static void i810_dma_dispatch_swap(struct drm_device * dev)
}
}
-static void i810_dma_dispatch_vertex(struct drm_device * dev,
- struct drm_buf * buf, int discard, int used)
+static void i810_dma_dispatch_vertex(struct drm_device *dev,
+ struct drm_buf *buf, int discard, int used)
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
@@ -795,7 +794,7 @@ static void i810_dma_dispatch_vertex(struct drm_device * dev,
}
}
-static void i810_dma_dispatch_flip(struct drm_device * dev)
+static void i810_dma_dispatch_flip(struct drm_device *dev)
{
drm_i810_private_t *dev_priv = dev->dev_private;
int pitch = dev_priv->pitch;
@@ -841,7 +840,7 @@ static void i810_dma_dispatch_flip(struct drm_device * dev)
}
-static void i810_dma_quiescent(struct drm_device * dev)
+static void i810_dma_quiescent(struct drm_device *dev)
{
drm_i810_private_t *dev_priv = dev->dev_private;
RING_LOCALS;
@@ -858,7 +857,7 @@ static void i810_dma_quiescent(struct drm_device * dev)
i810_wait_ring(dev, dev_priv->ring.Size - 8);
}
-static int i810_flush_queue(struct drm_device * dev)
+static int i810_flush_queue(struct drm_device *dev)
{
drm_i810_private_t *dev_priv = dev->dev_private;
struct drm_device_dma *dma = dev->dma;
@@ -891,7 +890,7 @@ static int i810_flush_queue(struct drm_device * dev)
}
/* Must be called with the lock held */
-static void i810_reclaim_buffers(struct drm_device * dev,
+static void i810_reclaim_buffers(struct drm_device *dev,
struct drm_file *file_priv)
{
struct drm_device_dma *dma = dev->dma;
@@ -969,9 +968,8 @@ static int i810_clear_bufs(struct drm_device *dev, void *data,
LOCK_TEST_WITH_RETURN(dev, file_priv);
/* GH: Someone's doing nasty things... */
- if (!dev->dev_private) {
+ if (!dev->dev_private)
return -EINVAL;
- }
i810_dma_dispatch_clear(dev, clear->flags,
clear->clear_color, clear->clear_depth);
@@ -1039,7 +1037,7 @@ static int i810_docopy(struct drm_device *dev, void *data,
return 0;
}
-static void i810_dma_dispatch_mc(struct drm_device * dev, struct drm_buf * buf, int used,
+static void i810_dma_dispatch_mc(struct drm_device *dev, struct drm_buf *buf, int used,
unsigned int last_render)
{
drm_i810_private_t *dev_priv = dev->dev_private;
@@ -1053,9 +1051,8 @@ static void i810_dma_dispatch_mc(struct drm_device * dev, struct drm_buf * buf,
i810_kernel_lost_context(dev);
u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_HARDWARE);
- if (u != I810_BUF_CLIENT) {
+ if (u != I810_BUF_CLIENT)
DRM_DEBUG("MC found buffer that isn't mine!\n");
- }
if (used > 4 * 1024)
used = 0;
@@ -1160,7 +1157,7 @@ static int i810_ov0_flip(struct drm_device *dev, void *data,
LOCK_TEST_WITH_RETURN(dev, file_priv);
- //Tell the overlay to update
+ /* Tell the overlay to update */
I810_WRITE(0x30000, dev_priv->overlay_physical | 0x80000000);
return 0;
@@ -1168,7 +1165,7 @@ static int i810_ov0_flip(struct drm_device *dev, void *data,
/* Not sure why this isn't set all the time:
*/
-static void i810_do_init_pageflip(struct drm_device * dev)
+static void i810_do_init_pageflip(struct drm_device *dev)
{
drm_i810_private_t *dev_priv = dev->dev_private;
@@ -1178,7 +1175,7 @@ static void i810_do_init_pageflip(struct drm_device * dev)
dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
}
-static int i810_do_cleanup_pageflip(struct drm_device * dev)
+static int i810_do_cleanup_pageflip(struct drm_device *dev)
{
drm_i810_private_t *dev_priv = dev->dev_private;
@@ -1218,49 +1215,61 @@ int i810_driver_load(struct drm_device *dev, unsigned long flags)
return 0;
}
-void i810_driver_lastclose(struct drm_device * dev)
+void i810_driver_lastclose(struct drm_device *dev)
{
i810_dma_cleanup(dev);
}
-void i810_driver_preclose(struct drm_device * dev, struct drm_file *file_priv)
+void i810_driver_preclose(struct drm_device *dev, struct drm_file *file_priv)
{
if (dev->dev_private) {
drm_i810_private_t *dev_priv = dev->dev_private;
- if (dev_priv->page_flipping) {
+ if (dev_priv->page_flipping)
i810_do_cleanup_pageflip(dev);
- }
}
}
-void i810_driver_reclaim_buffers_locked(struct drm_device * dev,
+void i810_driver_reclaim_buffers_locked(struct drm_device *dev,
struct drm_file *file_priv)
{
i810_reclaim_buffers(dev, file_priv);
}
-int i810_driver_dma_quiescent(struct drm_device * dev)
+int i810_driver_dma_quiescent(struct drm_device *dev)
{
i810_dma_quiescent(dev);
return 0;
}
+/*
+ * call the drm_ioctl under the big kernel lock because
+ * to lock against the i810_mmap_buffers function.
+ */
+long i810_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ int ret;
+ lock_kernel();
+ ret = drm_ioctl(file, cmd, arg);
+ unlock_kernel();
+ return ret;
+}
+
struct drm_ioctl_desc i810_ioctls[] = {
- DRM_IOCTL_DEF(DRM_I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_I810_VERTEX, i810_dma_vertex, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I810_CLEAR, i810_clear_bufs, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I810_FLUSH, i810_flush_ioctl, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I810_GETAGE, i810_getage, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I810_GETBUF, i810_getbuf, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I810_SWAP, i810_swap_bufs, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I810_COPY, i810_copybuf, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I810_DOCOPY, i810_docopy, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I810_OV0INFO, i810_ov0_info, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I810_FSTATUS, i810_fstatus, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I810_OV0FLIP, i810_ov0_flip, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_I810_RSTATUS, i810_rstatus, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I810_FLIP, i810_flip_bufs, DRM_AUTH)
+ DRM_IOCTL_DEF(DRM_I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I810_VERTEX, i810_dma_vertex, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I810_CLEAR, i810_clear_bufs, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I810_FLUSH, i810_flush_ioctl, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I810_GETAGE, i810_getage, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I810_GETBUF, i810_getbuf, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I810_SWAP, i810_swap_bufs, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I810_COPY, i810_copybuf, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I810_DOCOPY, i810_docopy, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I810_OV0INFO, i810_ov0_info, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I810_FSTATUS, i810_fstatus, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I810_OV0FLIP, i810_ov0_flip, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I810_RSTATUS, i810_rstatus, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I810_FLIP, i810_flip_bufs, DRM_AUTH|DRM_UNLOCKED),
};
int i810_max_ioctl = DRM_ARRAY_SIZE(i810_ioctls);
@@ -1276,7 +1285,7 @@ int i810_max_ioctl = DRM_ARRAY_SIZE(i810_ioctls);
* \returns
* A value of 1 is always retured to indictate every i810 is AGP.
*/
-int i810_driver_device_is_agp(struct drm_device * dev)
+int i810_driver_device_is_agp(struct drm_device *dev)
{
return 1;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.