diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv20.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv20.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv20.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv20.c new file mode 100644 index 000000000..d254f27f9 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv20.c @@ -0,0 +1,102 @@ +/* + * 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 +nv20_fb_tile_init(struct nvkm_fb *fb, int i, u32 addr, u32 size, u32 pitch, + u32 flags, struct nvkm_fb_tile *tile) +{ + tile->addr = 0x00000001 | addr; + tile->limit = max(1u, addr + size) - 1; + tile->pitch = pitch; + if (flags & 4) { + fb->func->tile.comp(fb, i, size, flags, tile); + tile->addr |= 2; + } +} + +static void +nv20_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 = 0x00000000; /* Z16 */ + else tile->zcomp = 0x04000000; /* Z24S8 */ + tile->zcomp |= tile->tag->offset; + tile->zcomp |= 0x80000000; /* enable */ +#ifdef __BIG_ENDIAN + tile->zcomp |= 0x08000000; +#endif + } +} + +void +nv20_fb_tile_fini(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile) +{ + tile->addr = 0; + tile->limit = 0; + tile->pitch = 0; + tile->zcomp = 0; + nvkm_mm_free(&fb->tags.mm, &tile->tag); +} + +void +nv20_fb_tile_prog(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile) +{ + struct nvkm_device *device = fb->subdev.device; + nvkm_wr32(device, 0x100244 + (i * 0x10), tile->limit); + nvkm_wr32(device, 0x100248 + (i * 0x10), tile->pitch); + nvkm_wr32(device, 0x100240 + (i * 0x10), tile->addr); + nvkm_rd32(device, 0x100240 + (i * 0x10)); + nvkm_wr32(device, 0x100300 + (i * 0x04), tile->zcomp); +} + +u32 +nv20_fb_tags(struct nvkm_fb *fb) +{ + const u32 tags = nvkm_rd32(fb->subdev.device, 0x100320); + return tags ? tags + 1 : 0; +} + +static const struct nvkm_fb_func +nv20_fb = { + .tags = nv20_fb_tags, + .tile.regions = 8, + .tile.init = nv20_fb_tile_init, + .tile.comp = nv20_fb_tile_comp, + .tile.fini = nv20_fb_tile_fini, + .tile.prog = nv20_fb_tile_prog, + .ram_new = nv20_ram_new, +}; + +int +nv20_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb) +{ + return nvkm_fb_new_(&nv20_fb, device, type, inst, pfb); +} |