| /* |
| * Copyright (C) 2010 Francisco Jerez. |
| * All Rights Reserved. |
| * |
| * 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 (including the |
| * next paragraph) 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 OWNER(S) AND/OR ITS SUPPLIERS 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. |
| * |
| */ |
| #include "priv.h" |
| #include "ram.h" |
| |
| void |
| nv30_fb_tile_init(struct nvkm_fb *fb, int i, u32 addr, u32 size, u32 pitch, |
| u32 flags, struct nvkm_fb_tile *tile) |
| { |
| /* for performance, select alternate bank offset for zeta */ |
| if (!(flags & 4)) { |
| tile->addr = (0 << 4); |
| } else { |
| if (fb->func->tile.comp) /* z compression */ |
| fb->func->tile.comp(fb, i, size, flags, tile); |
| tile->addr = (1 << 4); |
| } |
| |
| tile->addr |= 0x00000001; /* enable */ |
| tile->addr |= addr; |
| tile->limit = max(1u, addr + size) - 1; |
| tile->pitch = pitch; |
| } |
| |
| static void |
| nv30_fb_tile_comp(struct nvkm_fb *fb, int i, u32 size, u32 flags, |
| struct nvkm_fb_tile *tile) |
| { |
| u32 tiles = DIV_ROUND_UP(size, 0x40); |
| u32 tags = round_up(tiles / fb->ram->parts, 0x40); |
| if (!nvkm_mm_head(&fb->tags.mm, 0, 1, tags, tags, 1, &tile->tag)) { |
| if (flags & 2) tile->zcomp |= 0x01000000; /* Z16 */ |
| else tile->zcomp |= 0x02000000; /* Z24S8 */ |
| tile->zcomp |= ((tile->tag->offset ) >> 6); |
| tile->zcomp |= ((tile->tag->offset + tags - 1) >> 6) << 12; |
| #ifdef __BIG_ENDIAN |
| tile->zcomp |= 0x10000000; |
| #endif |
| } |
| } |
| |
| static int |
| calc_bias(struct nvkm_fb *fb, int k, int i, int j) |
| { |
| struct nvkm_device *device = fb->subdev.device; |
| int b = (device->chipset > 0x30 ? |
| nvkm_rd32(device, 0x122c + 0x10 * k + 0x4 * j) >> |
| (4 * (i ^ 1)) : |
| 0) & 0xf; |
| |
| return 2 * (b & 0x8 ? b - 0x10 : b); |
| } |
| |
| static int |
| calc_ref(struct nvkm_fb *fb, int l, int k, int i) |
| { |
| int j, x = 0; |
| |
| for (j = 0; j < 4; j++) { |
| int m = (l >> (8 * i) & 0xff) + calc_bias(fb, k, i, j); |
| |
| x |= (0x80 | clamp(m, 0, 0x1f)) << (8 * j); |
| } |
| |
| return x; |
| } |
| |
| void |
| nv30_fb_init(struct nvkm_fb *fb) |
| { |
| struct nvkm_device *device = fb->subdev.device; |
| int i, j; |
| |
| /* Init the memory timing regs at 0x10037c/0x1003ac */ |
| if (device->chipset == 0x30 || |
| device->chipset == 0x31 || |
| device->chipset == 0x35) { |
| /* Related to ROP count */ |
| int n = (device->chipset == 0x31 ? 2 : 4); |
| int l = nvkm_rd32(device, 0x1003d0); |
| |
| for (i = 0; i < n; i++) { |
| for (j = 0; j < 3; j++) |
| nvkm_wr32(device, 0x10037c + 0xc * i + 0x4 * j, |
| calc_ref(fb, l, 0, j)); |
| |
| for (j = 0; j < 2; j++) |
| nvkm_wr32(device, 0x1003ac + 0x8 * i + 0x4 * j, |
| calc_ref(fb, l, 1, j)); |
| } |
| } |
| } |
| |
| static const struct nvkm_fb_func |
| nv30_fb = { |
| .tags = nv20_fb_tags, |
| .init = nv30_fb_init, |
| .tile.regions = 8, |
| .tile.init = nv30_fb_tile_init, |
| .tile.comp = nv30_fb_tile_comp, |
| .tile.fini = nv20_fb_tile_fini, |
| .tile.prog = nv20_fb_tile_prog, |
| .ram_new = nv20_ram_new, |
| }; |
| |
| int |
| nv30_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb) |
| { |
| return nvkm_fb_new_(&nv30_fb, device, type, inst, pfb); |
| } |