| /* |
| * 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> |
| |
| #define NV04_PFB_BOOT_0 0x00100000 |
| # define NV04_PFB_BOOT_0_RAM_AMOUNT 0x00000003 |
| # define NV04_PFB_BOOT_0_RAM_AMOUNT_32MB 0x00000000 |
| # define NV04_PFB_BOOT_0_RAM_AMOUNT_4MB 0x00000001 |
| # define NV04_PFB_BOOT_0_RAM_AMOUNT_8MB 0x00000002 |
| # define NV04_PFB_BOOT_0_RAM_AMOUNT_16MB 0x00000003 |
| # define NV04_PFB_BOOT_0_RAM_WIDTH_128 0x00000004 |
| # define NV04_PFB_BOOT_0_RAM_TYPE 0x00000028 |
| # define NV04_PFB_BOOT_0_RAM_TYPE_SGRAM_8MBIT 0x00000000 |
| # define NV04_PFB_BOOT_0_RAM_TYPE_SGRAM_16MBIT 0x00000008 |
| # define NV04_PFB_BOOT_0_RAM_TYPE_SGRAM_16MBIT_4BANK 0x00000010 |
| # define NV04_PFB_BOOT_0_RAM_TYPE_SDRAM_16MBIT 0x00000018 |
| # define NV04_PFB_BOOT_0_RAM_TYPE_SDRAM_64MBIT 0x00000020 |
| # define NV04_PFB_BOOT_0_RAM_TYPE_SDRAM_64MBITX16 0x00000028 |
| # define NV04_PFB_BOOT_0_UMA_ENABLE 0x00000100 |
| # define NV04_PFB_BOOT_0_UMA_SIZE 0x0000f000 |
| #define NV04_PFB_CFG0 0x00100200 |
| |
| struct nv04_fb_priv { |
| struct nouveau_fb base; |
| }; |
| |
| bool |
| nv04_fb_memtype_valid(struct nouveau_fb *pfb, u32 tile_flags) |
| { |
| if (!(tile_flags & 0xff00)) |
| return true; |
| |
| return false; |
| } |
| |
| static int |
| nv04_fb_vram_init(struct nouveau_fb *pfb) |
| { |
| u32 boot0 = nv_rd32(pfb, NV04_PFB_BOOT_0); |
| if (boot0 & 0x00000100) { |
| pfb->ram.size = ((boot0 >> 12) & 0xf) * 2 + 2; |
| pfb->ram.size *= 1024 * 1024; |
| } else { |
| switch (boot0 & NV04_PFB_BOOT_0_RAM_AMOUNT) { |
| case NV04_PFB_BOOT_0_RAM_AMOUNT_32MB: |
| pfb->ram.size = 32 * 1024 * 1024; |
| break; |
| case NV04_PFB_BOOT_0_RAM_AMOUNT_16MB: |
| pfb->ram.size = 16 * 1024 * 1024; |
| break; |
| case NV04_PFB_BOOT_0_RAM_AMOUNT_8MB: |
| pfb->ram.size = 8 * 1024 * 1024; |
| break; |
| case NV04_PFB_BOOT_0_RAM_AMOUNT_4MB: |
| pfb->ram.size = 4 * 1024 * 1024; |
| break; |
| } |
| } |
| |
| if ((boot0 & 0x00000038) <= 0x10) |
| pfb->ram.type = NV_MEM_TYPE_SGRAM; |
| else |
| pfb->ram.type = NV_MEM_TYPE_SDRAM; |
| return 0; |
| } |
| |
| static int |
| nv04_fb_init(struct nouveau_object *object) |
| { |
| struct nv04_fb_priv *priv = (void *)object; |
| int ret; |
| |
| ret = nouveau_fb_init(&priv->base); |
| if (ret) |
| return ret; |
| |
| /* This is what the DDX did for NV_ARCH_04, but a mmio-trace shows |
| * nvidia reading PFB_CFG_0, then writing back its original value. |
| * (which was 0x701114 in this case) |
| */ |
| nv_wr32(priv, NV04_PFB_CFG0, 0x1114); |
| return 0; |
| } |
| |
| static int |
| nv04_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine, |
| struct nouveau_oclass *oclass, void *data, u32 size, |
| struct nouveau_object **pobject) |
| { |
| struct nv04_fb_priv *priv; |
| int ret; |
| |
| ret = nouveau_fb_create(parent, engine, oclass, &priv); |
| *pobject = nv_object(priv); |
| if (ret) |
| return ret; |
| |
| priv->base.memtype_valid = nv04_fb_memtype_valid; |
| priv->base.ram.init = nv04_fb_vram_init; |
| return nouveau_fb_preinit(&priv->base); |
| } |
| |
| struct nouveau_oclass |
| nv04_fb_oclass = { |
| .handle = NV_SUBDEV(FB, 0x04), |
| .ofuncs = &(struct nouveau_ofuncs) { |
| .ctor = nv04_fb_ctor, |
| .dtor = _nouveau_fb_dtor, |
| .init = nv04_fb_init, |
| .fini = _nouveau_fb_fini, |
| }, |
| }; |