diff options
author | Christoph Bumiller <e0425955@student.tuwien.ac.at> | 2013-03-27 21:16:53 (GMT) |
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committer | Ben Skeggs <bskeggs@redhat.com> | 2013-04-26 05:37:40 (GMT) |
commit | e30441adb91b020044f257c5c8e41022f3406ba1 (patch) | |
tree | ed9aaaa9a0aeb74eeaef783b4fd531269d3396ae /drivers/gpu/drm/nouveau/core/subdev/fb | |
parent | de7b7d59d54852c9544a9e4fa7af719511fb5366 (diff) | |
download | linux-fsl-qoriq-e30441adb91b020044f257c5c8e41022f3406ba1.tar.xz |
drm/nvc0-/ltcg: implement VRAM compression
Signed-off-by: Christoph Bumiller <e0425955@student.tuwien.ac.at>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/fb')
-rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c | 55 |
1 files changed, 30 insertions, 25 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c index 3b2ddc6..86ad592 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c @@ -23,6 +23,7 @@ */ #include <subdev/fb.h> +#include <subdev/ltcg.h> #include <subdev/bios.h> struct nvc0_fb_priv { @@ -31,34 +32,14 @@ struct nvc0_fb_priv { dma_addr_t r100c10; }; -/* 0 = unsupported - * 1 = non-compressed - * 3 = compressed - */ -static const u8 types[256] = { - 1, 1, 3, 3, 3, 3, 0, 3, 3, 3, 3, 0, 0, 0, 0, 0, - 0, 1, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 3, 3, - 3, 3, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 3, 3, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 1, 1, 1, 1, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 3, 3, 3, 3, 1, 1, 1, 1, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, - 3, 3, 3, 1, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, - 3, 3, 0, 0, 0, 0, 0, 0, 3, 0, 0, 3, 0, 3, 0, 3, - 3, 0, 3, 3, 3, 3, 3, 0, 0, 3, 0, 3, 0, 3, 3, 0, - 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 1, 1, 0 -}; +extern const u8 nvc0_pte_storage_type_map[256]; + static bool nvc0_fb_memtype_valid(struct nouveau_fb *pfb, u32 tile_flags) { u8 memtype = (tile_flags & 0x0000ff00) >> 8; - return likely((types[memtype] == 1)); + return likely((nvc0_pte_storage_type_map[memtype] != 0xff)); } static int @@ -130,6 +111,7 @@ nvc0_fb_vram_new(struct nouveau_fb *pfb, u64 size, u32 align, u32 ncmin, int type = (memtype & 0x0ff); int back = (memtype & 0x800); int ret; + const bool comp = nvc0_pte_storage_type_map[type] != type; size >>= 12; align >>= 12; @@ -142,10 +124,22 @@ nvc0_fb_vram_new(struct nouveau_fb *pfb, u64 size, u32 align, u32 ncmin, return -ENOMEM; INIT_LIST_HEAD(&mem->regions); - mem->memtype = type; mem->size = size; mutex_lock(&pfb->base.mutex); + if (comp) { + struct nouveau_ltcg *ltcg = nouveau_ltcg(pfb->base.base.parent); + + /* compression only works with lpages */ + if (align == (1 << (17 - 12))) { + int n = size >> 5; + ltcg->tags_alloc(ltcg, n, &mem->tag); + } + if (unlikely(!mem->tag)) + type = nvc0_pte_storage_type_map[type]; + } + mem->memtype = type; + do { if (back) ret = nouveau_mm_tail(mm, 1, size, ncmin, align, &r); @@ -168,6 +162,17 @@ nvc0_fb_vram_new(struct nouveau_fb *pfb, u64 size, u32 align, u32 ncmin, return 0; } +static void +nvc0_fb_vram_del(struct nouveau_fb *pfb, struct nouveau_mem **pmem) +{ + struct nouveau_ltcg *ltcg = nouveau_ltcg(pfb->base.base.parent); + + if ((*pmem)->tag) + ltcg->tags_free(ltcg, &(*pmem)->tag); + + nv50_fb_vram_del(pfb, pmem); +} + static int nvc0_fb_init(struct nouveau_object *object) { @@ -215,7 +220,7 @@ nvc0_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine, 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; + priv->base.ram.put = nvc0_fb_vram_del; priv->r100c10_page = alloc_page(GFP_KERNEL | __GFP_ZERO); if (priv->r100c10_page) { |