Move GEM functions from gtt.c to gem.c. Adapt some names. No functional changes.
Signed-off-by: Thomas Zimmermann tzimmermann@suse.de --- drivers/gpu/drm/gma500/gem.c | 133 +++++++++++++++++++++++++++++++ drivers/gpu/drm/gma500/gem.h | 12 +++ drivers/gpu/drm/gma500/gtt.c | 127 +---------------------------- drivers/gpu/drm/gma500/gtt.h | 5 +- drivers/gpu/drm/gma500/power.c | 1 + drivers/gpu/drm/gma500/psb_drv.c | 1 + 6 files changed, 149 insertions(+), 130 deletions(-)
diff --git a/drivers/gpu/drm/gma500/gem.c b/drivers/gpu/drm/gma500/gem.c index 2f44535f58e7..dffe37490206 100644 --- a/drivers/gpu/drm/gma500/gem.c +++ b/drivers/gpu/drm/gma500/gem.c @@ -21,6 +21,10 @@ #include "gem.h" #include "psb_drv.h"
+/* + * PSB GEM object + */ + int psb_gem_pin(struct psb_gem_object *pobj) { struct drm_gem_object *obj = &pobj->base; @@ -296,3 +300,132 @@ static vm_fault_t psb_gem_fault(struct vm_fault *vmf)
return ret; } + +/* + * Memory management + */ + +/* Insert vram stolen pages into the GTT. */ +static void psb_gem_mm_populate_stolen(struct drm_psb_private *pdev) +{ + struct drm_device *dev = &pdev->dev; + unsigned int pfn_base; + unsigned int i, num_pages; + uint32_t pte; + + pfn_base = pdev->stolen_base >> PAGE_SHIFT; + num_pages = pdev->vram_stolen_size >> PAGE_SHIFT; + + drm_dbg(dev, "Set up %u 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, PSB_MMU_CACHED_MEMORY); + iowrite32(pte, pdev->gtt_map + i); + } + + (void)ioread32(pdev->gtt_map + i - 1); +} + +int psb_gem_mm_init(struct drm_device *dev) +{ + struct drm_psb_private *dev_priv = to_drm_psb_private(dev); + struct pci_dev *pdev = to_pci_dev(dev->dev); + unsigned long stolen_size, vram_stolen_size; + struct psb_gtt *pg; + int ret; + + mutex_init(&dev_priv->mmap_mutex); + + pg = &dev_priv->gtt; + + pci_read_config_dword(pdev, PSB_BSM, &dev_priv->stolen_base); + vram_stolen_size = pg->gtt_phys_start - dev_priv->stolen_base - PAGE_SIZE; + + stolen_size = vram_stolen_size; + + dev_dbg(dev->dev, "Stolen memory base 0x%x, size %luK\n", + dev_priv->stolen_base, vram_stolen_size / 1024); + + pg->stolen_size = stolen_size; + dev_priv->vram_stolen_size = vram_stolen_size; + + dev_priv->vram_addr = ioremap_wc(dev_priv->stolen_base, stolen_size); + if (!dev_priv->vram_addr) { + dev_err(dev->dev, "Failure to map stolen base.\n"); + ret = -ENOMEM; + goto err_mutex_destroy; + } + + psb_gem_mm_populate_stolen(dev_priv); + + return 0; + +err_mutex_destroy: + mutex_destroy(&dev_priv->mmap_mutex); + return ret; +} + +void psb_gem_mm_fini(struct drm_device *dev) +{ + struct drm_psb_private *dev_priv = to_drm_psb_private(dev); + + iounmap(dev_priv->vram_addr); + + mutex_destroy(&dev_priv->mmap_mutex); +} + +/* Re-insert all pinned GEM objects into GTT. */ +static void psb_gem_mm_populate_resources(struct drm_psb_private *pdev) +{ + unsigned int restored = 0, total = 0, size = 0; + struct resource *r = pdev->gtt_mem->child; + struct drm_device *dev = &pdev->dev; + struct psb_gem_object *pobj; + + while (r) { + /* + * TODO: GTT restoration needs a refactoring, so that we don't have to touch + * struct psb_gem_object here. The type represents a GEM object and is + * not related to the GTT itself. + */ + pobj = container_of(r, struct psb_gem_object, resource); + if (pobj->pages) { + psb_gtt_insert_pages(pdev, &pobj->resource, pobj->pages); + size += resource_size(&pobj->resource); + ++restored; + } + r = r->sibling; + ++total; + } + + drm_dbg(dev, "Restored %u of %u gtt ranges (%u KB)", restored, total, (size / 1024)); +} + +int psb_gem_mm_resume(struct drm_device *dev) +{ + struct drm_psb_private *dev_priv = to_drm_psb_private(dev); + struct pci_dev *pdev = to_pci_dev(dev->dev); + unsigned long stolen_size, vram_stolen_size; + struct psb_gtt *pg; + + pg = &dev_priv->gtt; + + pci_read_config_dword(pdev, PSB_BSM, &dev_priv->stolen_base); + vram_stolen_size = pg->gtt_phys_start - dev_priv->stolen_base - PAGE_SIZE; + + stolen_size = vram_stolen_size; + + dev_dbg(dev->dev, "Stolen memory base 0x%x, size %luK\n", dev_priv->stolen_base, + vram_stolen_size / 1024); + + if (stolen_size != pg->stolen_size) { + dev_err(dev->dev, "GTT resume error.\n"); + return -EINVAL; + } + + psb_gem_mm_populate_stolen(dev_priv); + psb_gem_mm_populate_resources(dev_priv); + + return 0; +} diff --git a/drivers/gpu/drm/gma500/gem.h b/drivers/gpu/drm/gma500/gem.h index 96ef864b4bf1..27df6ff4ed37 100644 --- a/drivers/gpu/drm/gma500/gem.h +++ b/drivers/gpu/drm/gma500/gem.h @@ -14,6 +14,10 @@
struct drm_device;
+/* + * PSB GEM object + */ + struct psb_gem_object { struct drm_gem_object base;
@@ -36,4 +40,12 @@ psb_gem_create(struct drm_device *dev, u64 size, const char *name, bool stolen, int psb_gem_pin(struct psb_gem_object *pobj); void psb_gem_unpin(struct psb_gem_object *pobj);
+/* + * Memory management + */ + +int psb_gem_mm_init(struct drm_device *dev); +void psb_gem_mm_fini(struct drm_device *dev); +int psb_gem_mm_resume(struct drm_device *dev); + #endif diff --git a/drivers/gpu/drm/gma500/gtt.c b/drivers/gpu/drm/gma500/gtt.c index 9e1b19fcea28..b03feec64f01 100644 --- a/drivers/gpu/drm/gma500/gtt.c +++ b/drivers/gpu/drm/gma500/gtt.c @@ -49,7 +49,7 @@ int psb_gtt_allocate_resource(struct drm_psb_private *pdev, struct resource *res * * Set the GTT entry for the appropriate memory type. */ -static inline uint32_t psb_gtt_mask_pte(uint32_t pfn, int type) +uint32_t psb_gtt_mask_pte(uint32_t pfn, int type) { uint32_t mask = PSB_PTE_VALID;
@@ -125,15 +125,6 @@ void psb_gtt_remove_pages(struct drm_psb_private *pdev, const struct resource *r mutex_unlock(&pdev->gtt_mutex); }
-void psb_gem_mm_fini(struct drm_device *dev) -{ - struct drm_psb_private *dev_priv = to_drm_psb_private(dev); - - iounmap(dev_priv->vram_addr); - - mutex_destroy(&dev_priv->mmap_mutex); -} - void psb_gtt_fini(struct drm_device *dev) { struct drm_psb_private *dev_priv = to_drm_psb_private(dev); @@ -164,55 +155,6 @@ static void psb_gtt_clear(struct drm_psb_private *pdev) (void)ioread32(pdev->gtt_map + i - 1); }
-/* Insert vram stolen pages into the GTT. */ -static void psb_gtt_populate_stolen(struct drm_psb_private *pdev) -{ - struct drm_device *dev = &pdev->dev; - unsigned int pfn_base; - unsigned int i, num_pages; - uint32_t pte; - - pfn_base = pdev->stolen_base >> PAGE_SHIFT; - num_pages = pdev->vram_stolen_size >> PAGE_SHIFT; - - drm_dbg(dev, "Set up %u 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, PSB_MMU_CACHED_MEMORY); - iowrite32(pte, pdev->gtt_map + i); - } - - (void)ioread32(pdev->gtt_map + i - 1); -} - -/* Re-insert all pinned GEM objects into GTT. */ -static void psb_gtt_populate_resources(struct drm_psb_private *pdev) -{ - unsigned int restored = 0, total = 0, size = 0; - struct resource *r = pdev->gtt_mem->child; - struct drm_device *dev = &pdev->dev; - struct psb_gem_object *pobj; - - while (r) { - /* - * TODO: GTT restoration needs a refactoring, so that we don't have to touch - * struct psb_gem_object here. The type represents a GEM object and is - * not related to the GTT itself. - */ - pobj = container_of(r, struct psb_gem_object, resource); - if (pobj->pages) { - psb_gtt_insert_pages(pdev, &pobj->resource, pobj->pages); - size += resource_size(&pobj->resource); - ++restored; - } - r = r->sibling; - ++total; - } - - drm_dbg(dev, "Restored %u of %u gtt ranges (%u KB)", restored, total, (size / 1024)); -} - int psb_gtt_init(struct drm_device *dev) { struct drm_psb_private *dev_priv = to_drm_psb_private(dev); @@ -300,45 +242,6 @@ int psb_gtt_init(struct drm_device *dev) return ret; }
-int psb_gem_mm_init(struct drm_device *dev) -{ - struct drm_psb_private *dev_priv = to_drm_psb_private(dev); - struct pci_dev *pdev = to_pci_dev(dev->dev); - unsigned long stolen_size, vram_stolen_size; - struct psb_gtt *pg; - int ret; - - mutex_init(&dev_priv->mmap_mutex); - - pg = &dev_priv->gtt; - - pci_read_config_dword(pdev, PSB_BSM, &dev_priv->stolen_base); - vram_stolen_size = pg->gtt_phys_start - dev_priv->stolen_base - PAGE_SIZE; - - stolen_size = vram_stolen_size; - - dev_dbg(dev->dev, "Stolen memory base 0x%x, size %luK\n", - dev_priv->stolen_base, vram_stolen_size / 1024); - - pg->stolen_size = stolen_size; - dev_priv->vram_stolen_size = vram_stolen_size; - - dev_priv->vram_addr = ioremap_wc(dev_priv->stolen_base, stolen_size); - if (!dev_priv->vram_addr) { - dev_err(dev->dev, "Failure to map stolen base.\n"); - ret = -ENOMEM; - goto err_mutex_destroy; - } - - psb_gtt_populate_stolen(dev_priv); - - return 0; - -err_mutex_destroy: - mutex_destroy(&dev_priv->mmap_mutex); - return ret; -} - int psb_gtt_resume(struct drm_device *dev) { struct drm_psb_private *dev_priv = to_drm_psb_private(dev); @@ -421,31 +324,3 @@ int psb_gtt_resume(struct drm_device *dev) (void)PSB_RVDC32(PSB_PGETBL_CTL); return ret; } - -int psb_gem_mm_resume(struct drm_device *dev) -{ - struct drm_psb_private *dev_priv = to_drm_psb_private(dev); - struct pci_dev *pdev = to_pci_dev(dev->dev); - unsigned long stolen_size, vram_stolen_size; - struct psb_gtt *pg; - - pg = &dev_priv->gtt; - - pci_read_config_dword(pdev, PSB_BSM, &dev_priv->stolen_base); - vram_stolen_size = pg->gtt_phys_start - dev_priv->stolen_base - PAGE_SIZE; - - stolen_size = vram_stolen_size; - - dev_dbg(dev->dev, "Stolen memory base 0x%x, size %luK\n", dev_priv->stolen_base, - vram_stolen_size / 1024); - - if (stolen_size != pg->stolen_size) { - dev_err(dev->dev, "GTT resume error.\n"); - return -EINVAL; - } - - psb_gtt_populate_stolen(dev_priv); - psb_gtt_populate_resources(dev_priv); - - return 0; -} diff --git a/drivers/gpu/drm/gma500/gtt.h b/drivers/gpu/drm/gma500/gtt.h index 9a6d79200dce..d5a5fd4466c1 100644 --- a/drivers/gpu/drm/gma500/gtt.h +++ b/drivers/gpu/drm/gma500/gtt.h @@ -33,12 +33,9 @@ int psb_gtt_allocate_resource(struct drm_psb_private *pdev, struct resource *res const char *name, resource_size_t size, resource_size_t align, bool stolen, u32 *offset);
+uint32_t psb_gtt_mask_pte(uint32_t pfn, int type); void psb_gtt_insert_pages(struct drm_psb_private *pdev, const struct resource *res, struct page **pages); void psb_gtt_remove_pages(struct drm_psb_private *pdev, const struct resource *res);
-int psb_gem_mm_init(struct drm_device *dev); -void psb_gem_mm_fini(struct drm_device *dev); -int psb_gem_mm_resume(struct drm_device *dev); - #endif diff --git a/drivers/gpu/drm/gma500/power.c b/drivers/gpu/drm/gma500/power.c index 28e472b31698..6f917cfef65b 100644 --- a/drivers/gpu/drm/gma500/power.c +++ b/drivers/gpu/drm/gma500/power.c @@ -28,6 +28,7 @@ * Alan Cox alan@linux.intel.com */
+#include "gem.h" #include "power.h" #include "psb_drv.h" #include "psb_reg.h" diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c index 6547967b51e1..e30b58184156 100644 --- a/drivers/gpu/drm/gma500/psb_drv.c +++ b/drivers/gpu/drm/gma500/psb_drv.c @@ -28,6 +28,7 @@ #include <drm/drm_vblank.h>
#include "framebuffer.h" +#include "gem.h" #include "intel_bios.h" #include "mid_bios.h" #include "power.h"