drm: update PCIGART support from CVS
In order to work on FreeBSD the gart needed to use a local mapping
This patch moves the mainline to the new code and aligns some comment
changes
From: Eric Anholt <anholt@freebsd.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/char/drm/ati_pcigart.c b/drivers/char/drm/ati_pcigart.c
index efff0ee..5485382 100644
--- a/drivers/char/drm/ati_pcigart.c
+++ b/drivers/char/drm/ati_pcigart.c
@@ -52,7 +52,7 @@
# define ATI_MAX_PCIGART_PAGES 8192 /**< 32 MB aperture, 4K pages */
# define ATI_PCIGART_PAGE_SIZE 4096 /**< PCI GART page size */
-static unsigned long drm_ati_alloc_pcigart_table(void)
+static void *drm_ati_alloc_pcigart_table(void)
{
unsigned long address;
struct page *page;
@@ -72,27 +72,26 @@
}
DRM_DEBUG("%s: returning 0x%08lx\n", __FUNCTION__, address);
- return address;
+ return (void *)address;
}
-static void drm_ati_free_pcigart_table(unsigned long address)
+static void drm_ati_free_pcigart_table(void *address)
{
struct page *page;
int i;
DRM_DEBUG("%s\n", __FUNCTION__);
- page = virt_to_page(address);
+ page = virt_to_page((unsigned long)address);
for (i = 0; i < ATI_PCIGART_TABLE_PAGES; i++, page++) {
__put_page(page);
ClearPageReserved(page);
}
- free_pages(address, ATI_PCIGART_TABLE_ORDER);
+ free_pages((unsigned long)address, ATI_PCIGART_TABLE_ORDER);
}
-int drm_ati_pcigart_cleanup(drm_device_t * dev,
- drm_ati_pcigart_info * gart_info)
+int drm_ati_pcigart_cleanup(drm_device_t *dev, drm_ati_pcigart_info *gart_info)
{
drm_sg_mem_t *entry = dev->sg;
unsigned long pages;
@@ -136,10 +135,10 @@
EXPORT_SYMBOL(drm_ati_pcigart_cleanup);
-int drm_ati_pcigart_init(drm_device_t * dev, drm_ati_pcigart_info * gart_info)
+int drm_ati_pcigart_init(drm_device_t *dev, drm_ati_pcigart_info *gart_info)
{
drm_sg_mem_t *entry = dev->sg;
- unsigned long address = 0;
+ void *address = NULL;
unsigned long pages;
u32 *pci_gart, page_base, bus_address = 0;
int i, j, ret = 0;
@@ -163,7 +162,7 @@
goto done;
}
- bus_address = pci_map_single(dev->pdev, (void *)address,
+ bus_address = pci_map_single(dev->pdev, address,
ATI_PCIGART_TABLE_PAGES *
PAGE_SIZE, PCI_DMA_TODEVICE);
if (bus_address == 0) {
@@ -176,7 +175,7 @@
address = gart_info->addr;
bus_address = gart_info->bus_addr;
DRM_DEBUG("PCI: Gart Table: VRAM %08X mapped at %08lX\n",
- bus_address, address);
+ bus_address, (unsigned long)address);
}
pci_gart = (u32 *) address;
@@ -195,7 +194,7 @@
if (entry->busaddr[i] == 0) {
DRM_ERROR("unable to map PCIGART pages!\n");
drm_ati_pcigart_cleanup(dev, gart_info);
- address = 0;
+ address = NULL;
bus_address = 0;
goto done;
}