drm/gma500: Make SGX MMU driver actually do something

Old MMU code never wrote PDs or PTEs to any registers. Now we do, and
that's a good start.
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

drivers/gpu/drm/gma500/psb_drv.c

@@ -347,9 +347,7 @@ static int psb_driver_load(struct drm_device *dev, unsigned long chipset)
 	if (ret)
 		goto out_err;
 
-	dev_priv->mmu = psb_mmu_driver_init((void *)0,
-					drm_psb_trap_pagefaults, 0,
-					dev_priv);
+	dev_priv->mmu = psb_mmu_driver_init(dev, drm_psb_trap_pagefaults, 0, 0);
 	if (!dev_priv->mmu)
 		goto out_err;
 

drivers/gpu/drm/gma500/psb_drv.h

@@ -727,10 +727,10 @@ static inline struct drm_psb_private *psb_priv(struct drm_device *dev)
  * MMU stuff.
  */
 
-extern struct psb_mmu_driver *psb_mmu_driver_init(uint8_t __iomem * registers,
+extern struct psb_mmu_driver *psb_mmu_driver_init(struct drm_device *dev,
 						  int trap_pagefaults,
 						  int invalid_type,
-					struct drm_psb_private *dev_priv);
+						  atomic_t *msvdx_mmu_invaldc);
 extern void psb_mmu_driver_takedown(struct psb_mmu_driver *driver);
 extern struct psb_mmu_pd *psb_mmu_get_default_pd(struct psb_mmu_driver
 						 *driver);
@@ -740,7 +740,7 @@ extern struct psb_mmu_pd *psb_mmu_alloc_pd(struct psb_mmu_driver *driver,
 					   int trap_pagefaults,
 					   int invalid_type);
 extern void psb_mmu_free_pagedir(struct psb_mmu_pd *pd);
-extern void psb_mmu_flush(struct psb_mmu_driver *driver, int rc_prot);
+extern void psb_mmu_flush(struct psb_mmu_driver *driver);
 extern void psb_mmu_remove_pfn_sequence(struct psb_mmu_pd *pd,
 					unsigned long address,
 					uint32_t num_pages);