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path: root/drivers/gpu/drm/i830/i830_dma.c
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Diffstat (limited to 'drivers/gpu/drm/i830/i830_dma.c')
-rw-r--r--drivers/gpu/drm/i830/i830_dma.c137
1 files changed, 72 insertions, 65 deletions
diff --git a/drivers/gpu/drm/i830/i830_dma.c b/drivers/gpu/drm/i830/i830_dma.c
index 65759a9a85c8..5168862c9227 100644
--- a/drivers/gpu/drm/i830/i830_dma.c
+++ b/drivers/gpu/drm/i830/i830_dma.c
@@ -36,6 +36,7 @@
#include "i830_drm.h"
#include "i830_drv.h"
#include <linux/interrupt.h> /* For task queue support */
+#include <linux/smp_lock.h>
#include <linux/pagemap.h>
#include <linux/delay.h>
#include <linux/slab.h>
@@ -62,9 +63,8 @@ static struct drm_buf *i830_freelist_get(struct drm_device * dev)
/* In use is already a pointer */
used = cmpxchg(buf_priv->in_use, I830_BUF_FREE,
I830_BUF_CLIENT);
- if (used == I830_BUF_FREE) {
+ if (used == I830_BUF_FREE)
return buf;
- }
}
return NULL;
}
@@ -73,7 +73,7 @@ static struct drm_buf *i830_freelist_get(struct drm_device * dev)
* yet, the hardware updates in use for us once its on the ring buffer.
*/
-static int i830_freelist_put(struct drm_device * dev, struct drm_buf * buf)
+static int i830_freelist_put(struct drm_device *dev, struct drm_buf *buf)
{
drm_i830_buf_priv_t *buf_priv = buf->dev_private;
int used;
@@ -123,7 +123,7 @@ static const struct file_operations i830_buffer_fops = {
.fasync = drm_fasync,
};
-static int i830_map_buffer(struct drm_buf * buf, struct drm_file *file_priv)
+static int i830_map_buffer(struct drm_buf *buf, struct drm_file *file_priv)
{
struct drm_device *dev = file_priv->minor->dev;
drm_i830_buf_priv_t *buf_priv = buf->dev_private;
@@ -156,7 +156,7 @@ static int i830_map_buffer(struct drm_buf * buf, struct drm_file *file_priv)
return retcode;
}
-static int i830_unmap_buffer(struct drm_buf * buf)
+static int i830_unmap_buffer(struct drm_buf *buf)
{
drm_i830_buf_priv_t *buf_priv = buf->dev_private;
int retcode = 0;
@@ -176,7 +176,7 @@ static int i830_unmap_buffer(struct drm_buf * buf)
return retcode;
}
-static int i830_dma_get_buffer(struct drm_device * dev, drm_i830_dma_t * d,
+static int i830_dma_get_buffer(struct drm_device *dev, drm_i830_dma_t *d,
struct drm_file *file_priv)
{
struct drm_buf *buf;
@@ -206,7 +206,7 @@ static int i830_dma_get_buffer(struct drm_device * dev, drm_i830_dma_t * d,
return retcode;
}
-static int i830_dma_cleanup(struct drm_device * dev)
+static int i830_dma_cleanup(struct drm_device *dev)
{
struct drm_device_dma *dma = dev->dma;
@@ -222,9 +222,8 @@ static int i830_dma_cleanup(struct drm_device * dev)
drm_i830_private_t *dev_priv =
(drm_i830_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,
@@ -246,7 +245,7 @@ static int i830_dma_cleanup(struct drm_device * dev)
return 0;
}
-int i830_wait_ring(struct drm_device * dev, int n, const char *caller)
+int i830_wait_ring(struct drm_device *dev, int n, const char *caller)
{
drm_i830_private_t *dev_priv = dev->dev_private;
drm_i830_ring_buffer_t *ring = &(dev_priv->ring);
@@ -276,11 +275,11 @@ int i830_wait_ring(struct drm_device * dev, int n, const char *caller)
dev_priv->sarea_priv->perf_boxes |= I830_BOX_WAIT;
}
- out_wait_ring:
+out_wait_ring:
return iters;
}
-static void i830_kernel_lost_context(struct drm_device * dev)
+static void i830_kernel_lost_context(struct drm_device *dev)
{
drm_i830_private_t *dev_priv = dev->dev_private;
drm_i830_ring_buffer_t *ring = &(dev_priv->ring);
@@ -295,7 +294,7 @@ static void i830_kernel_lost_context(struct drm_device * dev)
dev_priv->sarea_priv->perf_boxes |= I830_BOX_RING_EMPTY;
}
-static int i830_freelist_init(struct drm_device * dev, drm_i830_private_t * dev_priv)
+static int i830_freelist_init(struct drm_device *dev, drm_i830_private_t *dev_priv)
{
struct drm_device_dma *dma = dev->dma;
int my_idx = 36;
@@ -329,9 +328,9 @@ static int i830_freelist_init(struct drm_device * dev, drm_i830_private_t * dev_
return 0;
}
-static int i830_dma_initialize(struct drm_device * dev,
- drm_i830_private_t * dev_priv,
- drm_i830_init_t * init)
+static int i830_dma_initialize(struct drm_device *dev,
+ drm_i830_private_t *dev_priv,
+ drm_i830_init_t *init)
{
struct drm_map_list *r_list;
@@ -482,7 +481,7 @@ static int i830_dma_init(struct drm_device *dev, void *data,
/* Most efficient way to verify state for the i830 is as it is
* emitted. Non-conformant state is silently dropped.
*/
-static void i830EmitContextVerified(struct drm_device * dev, unsigned int *code)
+static void i830EmitContextVerified(struct drm_device *dev, unsigned int *code)
{
drm_i830_private_t *dev_priv = dev->dev_private;
int i, j = 0;
@@ -527,7 +526,7 @@ static void i830EmitContextVerified(struct drm_device * dev, unsigned int *code)
ADVANCE_LP_RING();
}
-static void i830EmitTexVerified(struct drm_device * dev, unsigned int *code)
+static void i830EmitTexVerified(struct drm_device *dev, unsigned int *code)
{
drm_i830_private_t *dev_priv = dev->dev_private;
int i, j = 0;
@@ -561,7 +560,7 @@ static void i830EmitTexVerified(struct drm_device * dev, unsigned int *code)
printk("rejected packet %x\n", code[0]);
}
-static void i830EmitTexBlendVerified(struct drm_device * dev,
+static void i830EmitTexBlendVerified(struct drm_device *dev,
unsigned int *code, unsigned int num)
{
drm_i830_private_t *dev_priv = dev->dev_private;
@@ -586,7 +585,7 @@ static void i830EmitTexBlendVerified(struct drm_device * dev,
ADVANCE_LP_RING();
}
-static void i830EmitTexPalette(struct drm_device * dev,
+static void i830EmitTexPalette(struct drm_device *dev,
unsigned int *palette, int number, int is_shared)
{
drm_i830_private_t *dev_priv = dev->dev_private;
@@ -603,9 +602,8 @@ static void i830EmitTexPalette(struct drm_device * dev,
} else {
OUT_RING(CMD_OP_MAP_PALETTE_LOAD | MAP_PALETTE_NUM(number));
}
- for (i = 0; i < 256; i++) {
+ for (i = 0; i < 256; i++)
OUT_RING(palette[i]);
- }
OUT_RING(0);
/* KW: WHERE IS THE ADVANCE_LP_RING? This is effectively a noop!
*/
@@ -613,7 +611,7 @@ static void i830EmitTexPalette(struct drm_device * dev,
/* Need to do some additional checking when setting the dest buffer.
*/
-static void i830EmitDestVerified(struct drm_device * dev, unsigned int *code)
+static void i830EmitDestVerified(struct drm_device *dev, unsigned int *code)
{
drm_i830_private_t *dev_priv = dev->dev_private;
unsigned int tmp;
@@ -674,7 +672,7 @@ static void i830EmitDestVerified(struct drm_device * dev, unsigned int *code)
ADVANCE_LP_RING();
}
-static void i830EmitStippleVerified(struct drm_device * dev, unsigned int *code)
+static void i830EmitStippleVerified(struct drm_device *dev, unsigned int *code)
{
drm_i830_private_t *dev_priv = dev->dev_private;
RING_LOCALS;
@@ -685,7 +683,7 @@ static void i830EmitStippleVerified(struct drm_device * dev, unsigned int *code)
ADVANCE_LP_RING();
}
-static void i830EmitState(struct drm_device * dev)
+static void i830EmitState(struct drm_device *dev)
{
drm_i830_private_t *dev_priv = dev->dev_private;
drm_i830_sarea_t *sarea_priv = dev_priv->sarea_priv;
@@ -788,7 +786,7 @@ static void i830EmitState(struct drm_device * dev)
* Performance monitoring functions
*/
-static void i830_fill_box(struct drm_device * dev,
+static void i830_fill_box(struct drm_device *dev,
int x, int y, int w, int h, int r, int g, int b)
{
drm_i830_private_t *dev_priv = dev->dev_private;
@@ -816,17 +814,16 @@ static void i830_fill_box(struct drm_device * dev,
OUT_RING((y << 16) | x);
OUT_RING(((y + h) << 16) | (x + w));
- if (dev_priv->current_page == 1) {
+ if (dev_priv->current_page == 1)
OUT_RING(dev_priv->front_offset);
- } else {
+ else
OUT_RING(dev_priv->back_offset);
- }
OUT_RING(color);
ADVANCE_LP_RING();
}
-static void i830_cp_performance_boxes(struct drm_device * dev)
+static void i830_cp_performance_boxes(struct drm_device *dev)
{
drm_i830_private_t *dev_priv = dev->dev_private;
@@ -871,7 +868,7 @@ static void i830_cp_performance_boxes(struct drm_device * dev)
dev_priv->sarea_priv->perf_boxes = 0;
}
-static void i830_dma_dispatch_clear(struct drm_device * dev, int flags,
+static void i830_dma_dispatch_clear(struct drm_device *dev, int flags,
unsigned int clear_color,
unsigned int clear_zval,
unsigned int clear_depthmask)
@@ -966,7 +963,7 @@ static void i830_dma_dispatch_clear(struct drm_device * dev, int flags,
}
}
-static void i830_dma_dispatch_swap(struct drm_device * dev)
+static void i830_dma_dispatch_swap(struct drm_device *dev)
{
drm_i830_private_t *dev_priv = dev->dev_private;
drm_i830_sarea_t *sarea_priv = dev_priv->sarea_priv;
@@ -1036,7 +1033,7 @@ static void i830_dma_dispatch_swap(struct drm_device * dev)
}
}
-static void i830_dma_dispatch_flip(struct drm_device * dev)
+static void i830_dma_dispatch_flip(struct drm_device *dev)
{
drm_i830_private_t *dev_priv = dev->dev_private;
RING_LOCALS;
@@ -1079,8 +1076,8 @@ static void i830_dma_dispatch_flip(struct drm_device * dev)
dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
}
-static void i830_dma_dispatch_vertex(struct drm_device * dev,
- struct drm_buf * buf, int discard, int used)
+static void i830_dma_dispatch_vertex(struct drm_device *dev,
+ struct drm_buf *buf, int discard, int used)
{
drm_i830_private_t *dev_priv = dev->dev_private;
drm_i830_buf_priv_t *buf_priv = buf->dev_private;
@@ -1100,9 +1097,8 @@ static void i830_dma_dispatch_vertex(struct drm_device * dev,
if (discard) {
u = cmpxchg(buf_priv->in_use, I830_BUF_CLIENT,
I830_BUF_HARDWARE);
- if (u != I830_BUF_CLIENT) {
+ if (u != I830_BUF_CLIENT)
DRM_DEBUG("xxxx 2\n");
- }
}
if (used > 4 * 1023)
@@ -1191,7 +1187,7 @@ static void i830_dma_dispatch_vertex(struct drm_device * dev,
}
}
-static void i830_dma_quiescent(struct drm_device * dev)
+static void i830_dma_quiescent(struct drm_device *dev)
{
drm_i830_private_t *dev_priv = dev->dev_private;
RING_LOCALS;
@@ -1208,7 +1204,7 @@ static void i830_dma_quiescent(struct drm_device * dev)
i830_wait_ring(dev, dev_priv->ring.Size - 8, __func__);
}
-static int i830_flush_queue(struct drm_device * dev)
+static int i830_flush_queue(struct drm_device *dev)
{
drm_i830_private_t *dev_priv = dev->dev_private;
struct drm_device_dma *dma = dev->dma;
@@ -1241,7 +1237,7 @@ static int i830_flush_queue(struct drm_device * dev)
}
/* Must be called with the lock held */
-static void i830_reclaim_buffers(struct drm_device * dev, struct drm_file *file_priv)
+static void i830_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv)
{
struct drm_device_dma *dma = dev->dma;
int i;
@@ -1316,9 +1312,8 @@ static int i830_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;
- }
i830_dma_dispatch_clear(dev, clear->flags,
clear->clear_color,
@@ -1339,7 +1334,7 @@ static int i830_swap_bufs(struct drm_device *dev, void *data,
/* Not sure why this isn't set all the time:
*/
-static void i830_do_init_pageflip(struct drm_device * dev)
+static void i830_do_init_pageflip(struct drm_device *dev)
{
drm_i830_private_t *dev_priv = dev->dev_private;
@@ -1349,7 +1344,7 @@ static void i830_do_init_pageflip(struct drm_device * dev)
dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
}
-static int i830_do_cleanup_pageflip(struct drm_device * dev)
+static int i830_do_cleanup_pageflip(struct drm_device *dev)
{
drm_i830_private_t *dev_priv = dev->dev_private;
@@ -1490,47 +1485,59 @@ int i830_driver_load(struct drm_device *dev, unsigned long flags)
return 0;
}
-void i830_driver_lastclose(struct drm_device * dev)
+void i830_driver_lastclose(struct drm_device *dev)
{
i830_dma_cleanup(dev);
}
-void i830_driver_preclose(struct drm_device * dev, struct drm_file *file_priv)
+void i830_driver_preclose(struct drm_device *dev, struct drm_file *file_priv)
{
if (dev->dev_private) {
drm_i830_private_t *dev_priv = dev->dev_private;
- if (dev_priv->page_flipping) {
+ if (dev_priv->page_flipping)
i830_do_cleanup_pageflip(dev);
- }
}
}
-void i830_driver_reclaim_buffers_locked(struct drm_device * dev, struct drm_file *file_priv)
+void i830_driver_reclaim_buffers_locked(struct drm_device *dev, struct drm_file *file_priv)
{
i830_reclaim_buffers(dev, file_priv);
}
-int i830_driver_dma_quiescent(struct drm_device * dev)
+int i830_driver_dma_quiescent(struct drm_device *dev)
{
i830_dma_quiescent(dev);
return 0;
}
+/*
+ * call the drm_ioctl under the big kernel lock because
+ * to lock against the i830_mmap_buffers function.
+ */
+long i830_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 i830_ioctls[] = {
- DRM_IOCTL_DEF(DRM_I830_INIT, i830_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_I830_VERTEX, i830_dma_vertex, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I830_CLEAR, i830_clear_bufs, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I830_FLUSH, i830_flush_ioctl, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I830_GETAGE, i830_getage, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I830_GETBUF, i830_getbuf, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I830_SWAP, i830_swap_bufs, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I830_COPY, i830_copybuf, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I830_DOCOPY, i830_docopy, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I830_FLIP, i830_flip_bufs, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I830_IRQ_EMIT, i830_irq_emit, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I830_IRQ_WAIT, i830_irq_wait, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I830_GETPARAM, i830_getparam, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I830_SETPARAM, i830_setparam, DRM_AUTH)
+ DRM_IOCTL_DEF(DRM_I830_INIT, i830_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I830_VERTEX, i830_dma_vertex, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I830_CLEAR, i830_clear_bufs, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I830_FLUSH, i830_flush_ioctl, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I830_GETAGE, i830_getage, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I830_GETBUF, i830_getbuf, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I830_SWAP, i830_swap_bufs, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I830_COPY, i830_copybuf, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I830_DOCOPY, i830_docopy, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I830_FLIP, i830_flip_bufs, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I830_IRQ_EMIT, i830_irq_emit, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I830_IRQ_WAIT, i830_irq_wait, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I830_GETPARAM, i830_getparam, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_I830_SETPARAM, i830_setparam, DRM_AUTH|DRM_UNLOCKED),
};
int i830_max_ioctl = DRM_ARRAY_SIZE(i830_ioctls);
@@ -1546,7 +1553,7 @@ int i830_max_ioctl = DRM_ARRAY_SIZE(i830_ioctls);
* \returns
* A value of 1 is always retured to indictate every i8xx is AGP.
*/
-int i830_driver_device_is_agp(struct drm_device * dev)
+int i830_driver_device_is_agp(struct drm_device *dev)
{
return 1;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.