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path: root/drivers/gpu/drm/mga/mga_dma.c
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Diffstat (limited to 'drivers/gpu/drm/mga/mga_dma.c')
-rw-r--r--drivers/gpu/drm/mga/mga_dma.c103
1 files changed, 45 insertions, 58 deletions
diff --git a/drivers/gpu/drm/mga/mga_dma.c b/drivers/gpu/drm/mga/mga_dma.c
index 3c917fb3a60..08868ac3048 100644
--- a/drivers/gpu/drm/mga/mga_dma.c
+++ b/drivers/gpu/drm/mga/mga_dma.c
@@ -52,7 +52,7 @@ static int mga_do_cleanup_dma(struct drm_device *dev, int full_cleanup);
* Engine control
*/
-int mga_do_wait_for_idle(drm_mga_private_t * dev_priv)
+int mga_do_wait_for_idle(drm_mga_private_t *dev_priv)
{
u32 status = 0;
int i;
@@ -74,7 +74,7 @@ int mga_do_wait_for_idle(drm_mga_private_t * dev_priv)
return -EBUSY;
}
-static int mga_do_dma_reset(drm_mga_private_t * dev_priv)
+static int mga_do_dma_reset(drm_mga_private_t *dev_priv)
{
drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
drm_mga_primary_buffer_t *primary = &dev_priv->prim;
@@ -102,7 +102,7 @@ static int mga_do_dma_reset(drm_mga_private_t * dev_priv)
* Primary DMA stream
*/
-void mga_do_dma_flush(drm_mga_private_t * dev_priv)
+void mga_do_dma_flush(drm_mga_private_t *dev_priv)
{
drm_mga_primary_buffer_t *primary = &dev_priv->prim;
u32 head, tail;
@@ -142,11 +142,10 @@ void mga_do_dma_flush(drm_mga_private_t * dev_priv)
head = MGA_READ(MGA_PRIMADDRESS);
- if (head <= tail) {
+ if (head <= tail)
primary->space = primary->size - primary->tail;
- } else {
+ else
primary->space = head - tail;
- }
DRM_DEBUG(" head = 0x%06lx\n", (unsigned long)(head - dev_priv->primary->offset));
DRM_DEBUG(" tail = 0x%06lx\n", (unsigned long)(tail - dev_priv->primary->offset));
@@ -158,7 +157,7 @@ void mga_do_dma_flush(drm_mga_private_t * dev_priv)
DRM_DEBUG("done.\n");
}
-void mga_do_dma_wrap_start(drm_mga_private_t * dev_priv)
+void mga_do_dma_wrap_start(drm_mga_private_t *dev_priv)
{
drm_mga_primary_buffer_t *primary = &dev_priv->prim;
u32 head, tail;
@@ -181,11 +180,10 @@ void mga_do_dma_wrap_start(drm_mga_private_t * dev_priv)
head = MGA_READ(MGA_PRIMADDRESS);
- if (head == dev_priv->primary->offset) {
+ if (head == dev_priv->primary->offset)
primary->space = primary->size;
- } else {
+ else
primary->space = head - dev_priv->primary->offset;
- }
DRM_DEBUG(" head = 0x%06lx\n", (unsigned long)(head - dev_priv->primary->offset));
DRM_DEBUG(" tail = 0x%06x\n", primary->tail);
@@ -199,7 +197,7 @@ void mga_do_dma_wrap_start(drm_mga_private_t * dev_priv)
DRM_DEBUG("done.\n");
}
-void mga_do_dma_wrap_end(drm_mga_private_t * dev_priv)
+void mga_do_dma_wrap_end(drm_mga_private_t *dev_priv)
{
drm_mga_primary_buffer_t *primary = &dev_priv->prim;
drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
@@ -220,11 +218,11 @@ void mga_do_dma_wrap_end(drm_mga_private_t * dev_priv)
* Freelist management
*/
-#define MGA_BUFFER_USED ~0
+#define MGA_BUFFER_USED (~0)
#define MGA_BUFFER_FREE 0
#if MGA_FREELIST_DEBUG
-static void mga_freelist_print(struct drm_device * dev)
+static void mga_freelist_print(struct drm_device *dev)
{
drm_mga_private_t *dev_priv = dev->dev_private;
drm_mga_freelist_t *entry;
@@ -245,7 +243,7 @@ static void mga_freelist_print(struct drm_device * dev)
}
#endif
-static int mga_freelist_init(struct drm_device * dev, drm_mga_private_t * dev_priv)
+static int mga_freelist_init(struct drm_device *dev, drm_mga_private_t *dev_priv)
{
struct drm_device_dma *dma = dev->dma;
struct drm_buf *buf;
@@ -288,7 +286,7 @@ static int mga_freelist_init(struct drm_device * dev, drm_mga_private_t * dev_pr
return 0;
}
-static void mga_freelist_cleanup(struct drm_device * dev)
+static void mga_freelist_cleanup(struct drm_device *dev)
{
drm_mga_private_t *dev_priv = dev->dev_private;
drm_mga_freelist_t *entry;
@@ -308,7 +306,7 @@ static void mga_freelist_cleanup(struct drm_device * dev)
#if 0
/* FIXME: Still needed?
*/
-static void mga_freelist_reset(struct drm_device * dev)
+static void mga_freelist_reset(struct drm_device *dev)
{
struct drm_device_dma *dma = dev->dma;
struct drm_buf *buf;
@@ -356,7 +354,7 @@ static struct drm_buf *mga_freelist_get(struct drm_device * dev)
return NULL;
}
-int mga_freelist_put(struct drm_device * dev, struct drm_buf * buf)
+int mga_freelist_put(struct drm_device *dev, struct drm_buf *buf)
{
drm_mga_private_t *dev_priv = dev->dev_private;
drm_mga_buf_priv_t *buf_priv = buf->dev_private;
@@ -391,7 +389,7 @@ int mga_freelist_put(struct drm_device * dev, struct drm_buf * buf)
* DMA initialization, cleanup
*/
-int mga_driver_load(struct drm_device * dev, unsigned long flags)
+int mga_driver_load(struct drm_device *dev, unsigned long flags)
{
drm_mga_private_t *dev_priv;
int ret;
@@ -405,8 +403,8 @@ int mga_driver_load(struct drm_device * dev, unsigned long flags)
dev_priv->usec_timeout = MGA_DEFAULT_USEC_TIMEOUT;
dev_priv->chipset = flags;
- dev_priv->mmio_base = drm_get_resource_start(dev, 1);
- dev_priv->mmio_size = drm_get_resource_len(dev, 1);
+ dev_priv->mmio_base = pci_resource_start(dev->pdev, 1);
+ dev_priv->mmio_size = pci_resource_len(dev->pdev, 1);
dev->counters += 3;
dev->types[6] = _DRM_STAT_IRQ;
@@ -439,8 +437,8 @@ int mga_driver_load(struct drm_device * dev, unsigned long flags)
*
* \sa mga_do_dma_bootstrap, mga_do_pci_dma_bootstrap
*/
-static int mga_do_agp_dma_bootstrap(struct drm_device * dev,
- drm_mga_dma_bootstrap_t * dma_bs)
+static int mga_do_agp_dma_bootstrap(struct drm_device *dev,
+ drm_mga_dma_bootstrap_t *dma_bs)
{
drm_mga_private_t *const dev_priv =
(drm_mga_private_t *) dev->dev_private;
@@ -481,11 +479,10 @@ static int mga_do_agp_dma_bootstrap(struct drm_device * dev,
*/
if (dev_priv->chipset == MGA_CARD_TYPE_G200) {
- if (mode.mode & 0x02) {
+ if (mode.mode & 0x02)
MGA_WRITE(MGA_AGP_PLL, MGA_AGP2XPLL_ENABLE);
- } else {
+ else
MGA_WRITE(MGA_AGP_PLL, MGA_AGP2XPLL_DISABLE);
- }
}
/* Allocate and bind AGP memory. */
@@ -593,8 +590,8 @@ static int mga_do_agp_dma_bootstrap(struct drm_device * dev,
return 0;
}
#else
-static int mga_do_agp_dma_bootstrap(struct drm_device * dev,
- drm_mga_dma_bootstrap_t * dma_bs)
+static int mga_do_agp_dma_bootstrap(struct drm_device *dev,
+ drm_mga_dma_bootstrap_t *dma_bs)
{
return -EINVAL;
}
@@ -614,8 +611,8 @@ static int mga_do_agp_dma_bootstrap(struct drm_device * dev,
*
* \sa mga_do_dma_bootstrap, mga_do_agp_dma_bootstrap
*/
-static int mga_do_pci_dma_bootstrap(struct drm_device * dev,
- drm_mga_dma_bootstrap_t * dma_bs)
+static int mga_do_pci_dma_bootstrap(struct drm_device *dev,
+ drm_mga_dma_bootstrap_t *dma_bs)
{
drm_mga_private_t *const dev_priv =
(drm_mga_private_t *) dev->dev_private;
@@ -678,9 +675,8 @@ static int mga_do_pci_dma_bootstrap(struct drm_device * dev,
req.size = dma_bs->secondary_bin_size;
err = drm_addbufs_pci(dev, &req);
- if (!err) {
+ if (!err)
break;
- }
}
if (bin_count == 0) {
@@ -704,8 +700,8 @@ static int mga_do_pci_dma_bootstrap(struct drm_device * dev,
return 0;
}
-static int mga_do_dma_bootstrap(struct drm_device * dev,
- drm_mga_dma_bootstrap_t * dma_bs)
+static int mga_do_dma_bootstrap(struct drm_device *dev,
+ drm_mga_dma_bootstrap_t *dma_bs)
{
const int is_agp = (dma_bs->agp_mode != 0) && drm_device_is_agp(dev);
int err;
@@ -737,17 +733,15 @@ static int mga_do_dma_bootstrap(struct drm_device * dev,
* carve off portions of it for internal uses. The remaining memory
* is returned to user-mode to be used for AGP textures.
*/
- if (is_agp) {
+ if (is_agp)
err = mga_do_agp_dma_bootstrap(dev, dma_bs);
- }
/* If we attempted to initialize the card for AGP DMA but failed,
* clean-up any mess that may have been created.
*/
- if (err) {
+ if (err)
mga_do_cleanup_dma(dev, MINIMAL_CLEANUP);
- }
/* Not only do we want to try and initialized PCI cards for PCI DMA,
* but we also try to initialized AGP cards that could not be
@@ -757,9 +751,8 @@ static int mga_do_dma_bootstrap(struct drm_device * dev,
* AGP memory, etc.
*/
- if (!is_agp || err) {
+ if (!is_agp || err)
err = mga_do_pci_dma_bootstrap(dev, dma_bs);
- }
return err;
}
@@ -792,7 +785,7 @@ int mga_dma_bootstrap(struct drm_device *dev, void *data,
return err;
}
-static int mga_do_init_dma(struct drm_device * dev, drm_mga_init_t * init)
+static int mga_do_init_dma(struct drm_device *dev, drm_mga_init_t *init)
{
drm_mga_private_t *dev_priv;
int ret;
@@ -800,11 +793,10 @@ static int mga_do_init_dma(struct drm_device * dev, drm_mga_init_t * init)
dev_priv = dev->dev_private;
- if (init->sgram) {
+ if (init->sgram)
dev_priv->clear_cmd = MGA_DWGCTL_CLEAR | MGA_ATYPE_BLK;
- } else {
+ else
dev_priv->clear_cmd = MGA_DWGCTL_CLEAR | MGA_ATYPE_RSTR;
- }
dev_priv->maccess = init->maccess;
dev_priv->fb_cpp = init->fb_cpp;
@@ -975,9 +967,8 @@ static int mga_do_cleanup_dma(struct drm_device *dev, int full_cleanup)
dev_priv->agp_handle = 0;
}
- if ((dev->agp != NULL) && dev->agp->acquired) {
+ if ((dev->agp != NULL) && dev->agp->acquired)
err = drm_agp_release(dev);
- }
#endif
}
@@ -998,9 +989,8 @@ static int mga_do_cleanup_dma(struct drm_device *dev, int full_cleanup)
memset(dev_priv->warp_pipe_phys, 0,
sizeof(dev_priv->warp_pipe_phys));
- if (dev_priv->head != NULL) {
+ if (dev_priv->head != NULL)
mga_freelist_cleanup(dev);
- }
}
return err;
@@ -1017,9 +1007,8 @@ int mga_dma_init(struct drm_device *dev, void *data,
switch (init->func) {
case MGA_INIT_DMA:
err = mga_do_init_dma(dev, init);
- if (err) {
+ if (err)
(void)mga_do_cleanup_dma(dev, FULL_CLEANUP);
- }
return err;
case MGA_CLEANUP_DMA:
return mga_do_cleanup_dma(dev, FULL_CLEANUP);
@@ -1047,9 +1036,8 @@ int mga_dma_flush(struct drm_device *dev, void *data,
WRAP_WAIT_WITH_RETURN(dev_priv);
- if (lock->flags & (_DRM_LOCK_FLUSH | _DRM_LOCK_FLUSH_ALL)) {
+ if (lock->flags & (_DRM_LOCK_FLUSH | _DRM_LOCK_FLUSH_ALL))
mga_do_dma_flush(dev_priv);
- }
if (lock->flags & _DRM_LOCK_QUIESCENT) {
#if MGA_DMA_DEBUG
@@ -1079,8 +1067,8 @@ int mga_dma_reset(struct drm_device *dev, void *data,
* DMA buffer management
*/
-static int mga_dma_get_buffers(struct drm_device * dev,
- struct drm_file *file_priv, struct drm_dma * d)
+static int mga_dma_get_buffers(struct drm_device *dev,
+ struct drm_file *file_priv, struct drm_dma *d)
{
struct drm_buf *buf;
int i;
@@ -1134,9 +1122,8 @@ int mga_dma_buffers(struct drm_device *dev, void *data,
d->granted_count = 0;
- if (d->request_count) {
+ if (d->request_count)
ret = mga_dma_get_buffers(dev, file_priv, d);
- }
return ret;
}
@@ -1144,7 +1131,7 @@ int mga_dma_buffers(struct drm_device *dev, void *data,
/**
* Called just before the module is unloaded.
*/
-int mga_driver_unload(struct drm_device * dev)
+int mga_driver_unload(struct drm_device *dev)
{
kfree(dev->dev_private);
dev->dev_private = NULL;
@@ -1155,12 +1142,12 @@ int mga_driver_unload(struct drm_device * dev)
/**
* Called when the last opener of the device is closed.
*/
-void mga_driver_lastclose(struct drm_device * dev)
+void mga_driver_lastclose(struct drm_device *dev)
{
mga_do_cleanup_dma(dev, FULL_CLEANUP);
}
-int mga_driver_dma_quiescent(struct drm_device * dev)
+int mga_driver_dma_quiescent(struct drm_device *dev)
{
drm_mga_private_t *dev_priv = dev->dev_private;
return mga_do_wait_for_idle(dev_priv);