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path: root/drivers/gpu/drm/gma500/gtt.c
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Diffstat (limited to 'drivers/gpu/drm/gma500/gtt.c')
-rw-r--r--drivers/gpu/drm/gma500/gtt.c32
1 files changed, 16 insertions, 16 deletions
diff --git a/drivers/gpu/drm/gma500/gtt.c b/drivers/gpu/drm/gma500/gtt.c
index c6465b40090f..04a371aceb34 100644
--- a/drivers/gpu/drm/gma500/gtt.c
+++ b/drivers/gpu/drm/gma500/gtt.c
@@ -39,6 +39,10 @@ static inline uint32_t psb_gtt_mask_pte(uint32_t pfn, int type)
{
uint32_t mask = PSB_PTE_VALID;
+ /* Ensure we explode rather than put an invalid low mapping of
+ a high mapping page into the gtt */
+ BUG_ON(pfn & ~(0xFFFFFFFF >> PAGE_SHIFT));
+
if (type & PSB_MMU_CACHED_MEMORY)
mask |= PSB_PTE_CACHED;
if (type & PSB_MMU_RO_MEMORY)
@@ -57,7 +61,7 @@ static inline uint32_t psb_gtt_mask_pte(uint32_t pfn, int type)
* Given a gtt_range object return the GTT offset of the page table
* entries for this gtt_range
*/
-static u32 *psb_gtt_entry(struct drm_device *dev, struct gtt_range *r)
+static u32 __iomem *psb_gtt_entry(struct drm_device *dev, struct gtt_range *r)
{
struct drm_psb_private *dev_priv = dev->dev_private;
unsigned long offset;
@@ -78,7 +82,8 @@ static u32 *psb_gtt_entry(struct drm_device *dev, struct gtt_range *r)
*/
static int psb_gtt_insert(struct drm_device *dev, struct gtt_range *r)
{
- u32 *gtt_slot, pte;
+ u32 __iomem *gtt_slot;
+ u32 pte;
struct page **pages;
int i;
@@ -93,7 +98,7 @@ static int psb_gtt_insert(struct drm_device *dev, struct gtt_range *r)
pages = r->pages;
/* Make sure changes are visible to the GPU */
- set_pages_array_uc(pages, r->npage);
+ set_pages_array_wc(pages, r->npage);
/* Write our page entries into the GTT itself */
for (i = r->roll; i < r->npage; i++) {
@@ -122,7 +127,8 @@ static int psb_gtt_insert(struct drm_device *dev, struct gtt_range *r)
static void psb_gtt_remove(struct drm_device *dev, struct gtt_range *r)
{
struct drm_psb_private *dev_priv = dev->dev_private;
- u32 *gtt_slot, pte;
+ u32 __iomem *gtt_slot;
+ u32 pte;
int i;
WARN_ON(r->stolen);
@@ -148,7 +154,8 @@ static void psb_gtt_remove(struct drm_device *dev, struct gtt_range *r)
*/
void psb_gtt_roll(struct drm_device *dev, struct gtt_range *r, int roll)
{
- u32 *gtt_slot, pte;
+ u32 __iomem *gtt_slot;
+ u32 pte;
int i;
if (roll >= r->npage) {
@@ -409,8 +416,6 @@ int psb_gtt_init(struct drm_device *dev, int resume)
unsigned long stolen_size, vram_stolen_size;
unsigned i, num_pages;
unsigned pfn_base;
- uint32_t vram_pages;
- uint32_t dvmt_mode = 0;
struct psb_gtt *pg;
int ret = 0;
@@ -483,13 +488,8 @@ int psb_gtt_init(struct drm_device *dev, int resume)
stolen_size = vram_stolen_size;
- printk(KERN_INFO "Stolen memory information\n");
- printk(KERN_INFO " base in RAM: 0x%x\n", dev_priv->stolen_base);
- printk(KERN_INFO " size: %luK, calculated by (GTT RAM base) - (Stolen base), seems wrong\n",
- vram_stolen_size/1024);
- dvmt_mode = (dev_priv->gmch_ctrl >> 4) & 0x7;
- printk(KERN_INFO " the correct size should be: %dM(dvmt mode=%d)\n",
- (dvmt_mode == 1) ? 1 : (2 << (dvmt_mode - 1)), dvmt_mode);
+ dev_dbg(dev->dev, "Stolen memory base 0x%x, size %luK\n",
+ dev_priv->stolen_base, vram_stolen_size / 1024);
if (resume && (gtt_pages != pg->gtt_pages) &&
(stolen_size != pg->stolen_size)) {
@@ -525,8 +525,8 @@ int psb_gtt_init(struct drm_device *dev, int resume)
*/
pfn_base = dev_priv->stolen_base >> PAGE_SHIFT;
- vram_pages = num_pages = vram_stolen_size >> PAGE_SHIFT;
- printk(KERN_INFO"Set up %d stolen pages starting at 0x%08x, GTT offset %dK\n",
+ num_pages = vram_stolen_size >> PAGE_SHIFT;
+ dev_dbg(dev->dev, "Set up %d stolen pages starting at 0x%08x, GTT offset %dK\n",
num_pages, pfn_base << PAGE_SHIFT, 0);
for (i = 0; i < num_pages; ++i) {
pte = psb_gtt_mask_pte(pfn_base + i, 0);