diff options
Diffstat (limited to 'shared-core/nouveau_mem.c')
| -rw-r--r-- | shared-core/nouveau_mem.c | 89 |
1 files changed, 64 insertions, 25 deletions
diff --git a/shared-core/nouveau_mem.c b/shared-core/nouveau_mem.c index c75a9356..79f94fd4 100644 --- a/shared-core/nouveau_mem.c +++ b/shared-core/nouveau_mem.c @@ -211,6 +211,10 @@ void nouveau_mem_close(struct drm_device *dev) drm_nouveau_private_t *dev_priv = dev->dev_private; nouveau_mem_takedown(&dev_priv->agp_heap); nouveau_mem_takedown(&dev_priv->fb_heap); + if ( dev_priv->pci_heap ) + { + nouveau_mem_takedown(&dev_priv->pci_heap); + } } /* returns the amount of FB ram in bytes */ @@ -283,8 +287,10 @@ int nouveau_mem_init(struct drm_device *dev) { drm_nouveau_private_t *dev_priv = dev->dev_private; uint32_t fb_size; + drm_scatter_gather_t sgreq; dev_priv->agp_phys=0; dev_priv->fb_phys=0; + sgreq . size = 4 << 20; //4MB of PCI scatter-gather zone /* init AGP */ dev_priv->agp_heap=NULL; @@ -340,8 +346,26 @@ int nouveau_mem_init(struct drm_device *dev) dev_priv->agp_phys = info.aperture_base; dev_priv->agp_available_size = info.aperture_size; } + +goto have_agp; no_agp: + dev_priv->pci_heap = NULL; + DRM_DEBUG("Allocating sg memory for PCI DMA\n"); + if ( drm_sg_alloc(dev, &sgreq) ) + { + DRM_ERROR("Unable to allocate 4MB of scatter-gather pages for PCI DMA!"); + goto no_pci; + } + DRM_DEBUG("Got %d KiB\n", (dev->sg->pages * PAGE_SIZE) >> 10); + if ( nouveau_mem_init_heap(&dev_priv->pci_heap, dev->sg->virtual, dev->sg->pages * PAGE_SIZE)) + { + DRM_ERROR("Unable to initialize pci_heap!"); + goto no_pci; + } + +no_pci: +have_agp: /* setup a mtrr over the FB */ dev_priv->fb_mtrr = drm_mtrr_add(drm_get_resource_start(dev, 1), nouveau_mem_fb_amount(dev), @@ -405,29 +429,40 @@ struct mem_block* nouveau_mem_alloc(struct drm_device *dev, int alignment, uint6 if (size & (~PAGE_MASK)) size = ((size/PAGE_SIZE) + 1) * PAGE_SIZE; - if (flags&NOUVEAU_MEM_AGP) { - type=NOUVEAU_MEM_AGP; - block = nouveau_mem_alloc_block(dev_priv->agp_heap, size, - alignment, filp); - if (block) goto alloc_ok; - } - if (flags&(NOUVEAU_MEM_FB|NOUVEAU_MEM_FB_ACCEPTABLE)) { - type=NOUVEAU_MEM_FB; - if (!(flags&NOUVEAU_MEM_MAPPED)) { - block = nouveau_mem_alloc_block(dev_priv->fb_nomap_heap, - size, alignment, filp); - if (block) goto alloc_ok; - } - block = nouveau_mem_alloc_block(dev_priv->fb_heap, size, - alignment, filp); - if (block) goto alloc_ok; - } - if (flags&NOUVEAU_MEM_AGP_ACCEPTABLE) { - type=NOUVEAU_MEM_AGP; - block = nouveau_mem_alloc_block(dev_priv->agp_heap, size, - alignment, filp); - if (block) goto alloc_ok; - } + +#define NOUVEAU_MEM_ALLOC_AGP {\ + type=NOUVEAU_MEM_AGP;\ + block = nouveau_mem_alloc_block(dev_priv->agp_heap, size,\ + alignment, filp);\ + if (block) goto alloc_ok;\ + } + +#define NOUVEAU_MEM_ALLOC_PCI {\ + type = NOUVEAU_MEM_PCI;\ + block = nouveau_mem_alloc_block(dev_priv->pci_heap, size, alignment, filp);\ + if ( block ) goto alloc_ok;\ + } + +#define NOUVEAU_MEM_ALLOC_FB {\ + type=NOUVEAU_MEM_FB;\ + if (!(flags&NOUVEAU_MEM_MAPPED)) {\ + block = nouveau_mem_alloc_block(dev_priv->fb_nomap_heap,\ + size, alignment, filp); \ + if (block) goto alloc_ok;\ + }\ + block = nouveau_mem_alloc_block(dev_priv->fb_heap, size,\ + alignment, filp);\ + if (block) goto alloc_ok;\ + } + + + if (flags&NOUVEAU_MEM_FB) NOUVEAU_MEM_ALLOC_FB + if (flags&NOUVEAU_MEM_AGP) NOUVEAU_MEM_ALLOC_AGP + if (flags&NOUVEAU_MEM_PCI) NOUVEAU_MEM_ALLOC_PCI + if (flags&NOUVEAU_MEM_FB_ACCEPTABLE) NOUVEAU_MEM_ALLOC_FB + if (flags&NOUVEAU_MEM_AGP_ACCEPTABLE) NOUVEAU_MEM_ALLOC_AGP + if (flags&NOUVEAU_MEM_PCI_ACCEPTABLE) NOUVEAU_MEM_ALLOC_PCI + return NULL; @@ -436,15 +471,19 @@ alloc_ok: if (flags&NOUVEAU_MEM_MAPPED) { - int ret; + int ret = 0; block->flags|=NOUVEAU_MEM_MAPPED; if (type == NOUVEAU_MEM_AGP) ret = drm_addmap(dev, block->start - dev->agp->base, block->size, _DRM_AGP, 0, &block->map); - else + else if (type == NOUVEAU_MEM_FB) ret = drm_addmap(dev, block->start, block->size, _DRM_FRAME_BUFFER, 0, &block->map); + else if (type == NOUVEAU_MEM_PCI) + ret = drm_addmap(dev, block->start - (unsigned long int)dev->sg->virtual, block->size, + _DRM_SCATTER_GATHER, 0, &block->map); + if (ret) { nouveau_mem_free_block(block); return NULL; |