diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c | 126 |
1 files changed, 61 insertions, 65 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c index 9f59f2b..306bdf1 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c @@ -62,6 +62,65 @@ nvc0_fb_memtype_valid(struct nouveau_fb *pfb, u32 tile_flags) } static int +nvc0_fb_vram_init(struct nouveau_fb *pfb) +{ + struct nouveau_bios *bios = nouveau_bios(pfb); + const u32 rsvd_head = ( 256 * 1024) >> 12; /* vga memory */ + const u32 rsvd_tail = (1024 * 1024) >> 12; /* vbios etc */ + u32 parts = nv_rd32(pfb, 0x022438); + u32 pmask = nv_rd32(pfb, 0x022554); + u32 bsize = nv_rd32(pfb, 0x10f20c); + u32 offset, length; + bool uniform = true; + int ret, part; + + nv_debug(pfb, "0x100800: 0x%08x\n", nv_rd32(pfb, 0x100800)); + nv_debug(pfb, "parts 0x%08x mask 0x%08x\n", parts, pmask); + + pfb->ram.type = nouveau_fb_bios_memtype(bios); + pfb->ram.ranks = (nv_rd32(pfb, 0x10f200) & 0x00000004) ? 2 : 1; + + /* read amount of vram attached to each memory controller */ + for (part = 0; part < parts; part++) { + if (!(pmask & (1 << part))) { + u32 psize = nv_rd32(pfb, 0x11020c + (part * 0x1000)); + if (psize != bsize) { + if (psize < bsize) + bsize = psize; + uniform = false; + } + + nv_debug(pfb, "%d: mem_amount 0x%08x\n", part, psize); + pfb->ram.size += (u64)psize << 20; + } + } + + /* if all controllers have the same amount attached, there's no holes */ + if (uniform) { + offset = rsvd_head; + length = (pfb->ram.size >> 12) - rsvd_head - rsvd_tail; + return nouveau_mm_init(&pfb->vram, offset, length, 1); + } + + /* otherwise, address lowest common amount from 0GiB */ + ret = nouveau_mm_init(&pfb->vram, rsvd_head, (bsize << 8) * parts, 1); + if (ret) + return ret; + + /* and the rest starting from (8GiB + common_size) */ + offset = (0x0200000000ULL >> 12) + (bsize << 8); + length = (pfb->ram.size >> 12) - (bsize << 8) - rsvd_tail; + + ret = nouveau_mm_init(&pfb->vram, offset, length, 0); + if (ret) { + nouveau_mm_fini(&pfb->vram); + return ret; + } + + return 0; +} + +static int nvc0_fb_vram_new(struct nouveau_fb *pfb, u64 size, u32 align, u32 ncmin, u32 memtype, struct nouveau_mem **pmem) { @@ -139,66 +198,6 @@ nvc0_fb_dtor(struct nouveau_object *object) } static int -nvc0_vram_detect(struct nvc0_fb_priv *priv) -{ - struct nouveau_bios *bios = nouveau_bios(priv); - struct nouveau_fb *pfb = &priv->base; - const u32 rsvd_head = ( 256 * 1024) >> 12; /* vga memory */ - const u32 rsvd_tail = (1024 * 1024) >> 12; /* vbios etc */ - u32 parts = nv_rd32(priv, 0x022438); - u32 pmask = nv_rd32(priv, 0x022554); - u32 bsize = nv_rd32(priv, 0x10f20c); - u32 offset, length; - bool uniform = true; - int ret, part; - - nv_debug(priv, "0x100800: 0x%08x\n", nv_rd32(priv, 0x100800)); - nv_debug(priv, "parts 0x%08x mask 0x%08x\n", parts, pmask); - - priv->base.ram.type = nouveau_fb_bios_memtype(bios); - priv->base.ram.ranks = (nv_rd32(priv, 0x10f200) & 0x00000004) ? 2 : 1; - - /* read amount of vram attached to each memory controller */ - for (part = 0; part < parts; part++) { - if (!(pmask & (1 << part))) { - u32 psize = nv_rd32(priv, 0x11020c + (part * 0x1000)); - if (psize != bsize) { - if (psize < bsize) - bsize = psize; - uniform = false; - } - - nv_debug(priv, "%d: mem_amount 0x%08x\n", part, psize); - priv->base.ram.size += (u64)psize << 20; - } - } - - /* if all controllers have the same amount attached, there's no holes */ - if (uniform) { - offset = rsvd_head; - length = (priv->base.ram.size >> 12) - rsvd_head - rsvd_tail; - return nouveau_mm_init(&pfb->vram, offset, length, 1); - } - - /* otherwise, address lowest common amount from 0GiB */ - ret = nouveau_mm_init(&pfb->vram, rsvd_head, (bsize << 8) * parts, 1); - if (ret) - return ret; - - /* and the rest starting from (8GiB + common_size) */ - offset = (0x0200000000ULL >> 12) + (bsize << 8); - length = (priv->base.ram.size >> 12) - (bsize << 8) - rsvd_tail; - - ret = nouveau_mm_init(&pfb->vram, offset, length, 0); - if (ret) { - nouveau_mm_fini(&pfb->vram); - return ret; - } - - return 0; -} - -static int nvc0_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nouveau_oclass *oclass, void *data, u32 size, struct nouveau_object **pobject) @@ -213,13 +212,10 @@ nvc0_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine, return ret; priv->base.memtype_valid = nvc0_fb_memtype_valid; + priv->base.ram.init = nvc0_fb_vram_init; priv->base.ram.get = nvc0_fb_vram_new; priv->base.ram.put = nv50_fb_vram_del; - ret = nvc0_vram_detect(priv); - if (ret) - return ret; - priv->r100c10_page = alloc_page(GFP_KERNEL | __GFP_ZERO); if (!priv->r100c10_page) return -ENOMEM; @@ -229,7 +225,7 @@ nvc0_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine, if (pci_dma_mapping_error(device->pdev, priv->r100c10)) return -EFAULT; - return nouveau_fb_created(&priv->base); + return nouveau_fb_preinit(&priv->base); } |