diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/fb/base.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/fb/base.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/base.c b/drivers/gpu/drm/nouveau/core/subdev/fb/base.c new file mode 100644 index 000000000000..f0086de8af31 --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/base.c @@ -0,0 +1,130 @@ +/* + * Copyright 2012 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Ben Skeggs + */ + +#include "subdev/fb.h" +#include "subdev/bios.h" +#include "subdev/bios/bit.h" + +int +nouveau_fb_bios_memtype(struct nouveau_bios *bios) +{ + struct bit_entry M; + u8 ramcfg; + + ramcfg = (nv_rd32(bios, 0x101000) & 0x0000003c) >> 2; + if (!bit_entry(bios, 'M', &M) && M.version == 2 && M.length >= 5) { + u16 table = nv_ro16(bios, M.offset + 3); + u8 version = nv_ro08(bios, table + 0); + u8 header = nv_ro08(bios, table + 1); + u8 record = nv_ro08(bios, table + 2); + u8 entries = nv_ro08(bios, table + 3); + if (table && version == 0x10 && ramcfg < entries) { + u16 entry = table + header + (ramcfg * record); + switch (nv_ro08(bios, entry) & 0x0f) { + case 0: return NV_MEM_TYPE_DDR2; + case 1: return NV_MEM_TYPE_DDR3; + case 2: return NV_MEM_TYPE_GDDR3; + case 3: return NV_MEM_TYPE_GDDR5; + default: + break; + } + + } + } + + return NV_MEM_TYPE_UNKNOWN; +} + +int +nouveau_fb_init(struct nouveau_fb *pfb) +{ + int ret, i; + + ret = nouveau_subdev_init(&pfb->base); + if (ret) + return ret; + + for (i = 0; i < pfb->tile.regions; i++) + pfb->tile.prog(pfb, i, &pfb->tile.region[i]); + + return 0; +} + +int +_nouveau_fb_init(struct nouveau_object *object) +{ + struct nouveau_fb *pfb = (void *)object; + return nouveau_fb_init(pfb); +} + +void +nouveau_fb_destroy(struct nouveau_fb *pfb) +{ + int i; + + for (i = 0; i < pfb->tile.regions; i++) + pfb->tile.fini(pfb, i, &pfb->tile.region[i]); + + if (pfb->tags.block_size) + nouveau_mm_fini(&pfb->tags); + + if (pfb->vram.block_size) + nouveau_mm_fini(&pfb->vram); + + nouveau_subdev_destroy(&pfb->base); +} + +void +_nouveau_fb_dtor(struct nouveau_object *object) +{ + struct nouveau_fb *pfb = (void *)object; + nouveau_fb_destroy(pfb); +} + +int +nouveau_fb_created(struct nouveau_fb *pfb) +{ + static const char *name[] = { + [NV_MEM_TYPE_UNKNOWN] = "unknown", + [NV_MEM_TYPE_STOLEN ] = "stolen system memory", + [NV_MEM_TYPE_SGRAM ] = "SGRAM", + [NV_MEM_TYPE_SDRAM ] = "SDRAM", + [NV_MEM_TYPE_DDR1 ] = "DDR1", + [NV_MEM_TYPE_DDR2 ] = "DDR2", + [NV_MEM_TYPE_DDR3 ] = "DDR3", + [NV_MEM_TYPE_GDDR2 ] = "GDDR2", + [NV_MEM_TYPE_GDDR3 ] = "GDDR3", + [NV_MEM_TYPE_GDDR4 ] = "GDDR4", + [NV_MEM_TYPE_GDDR5 ] = "GDDR5", + }; + + if (pfb->ram.size == 0) { + nv_fatal(pfb, "no vram detected!!\n"); + return -ERANGE; + } + + nv_info(pfb, "RAM type: %s\n", name[pfb->ram.type]); + nv_info(pfb, "RAM size: %d MiB\n", (int)(pfb->ram.size >> 20)); + return 0; +} |