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path: root/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c')
-rw-r--r--drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c126
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);
}