/*
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* Copyright (C) 2010 Francisco Jerez.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include "priv.h"
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#include "ram.h"
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void
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nv20_fb_tile_init(struct nvkm_fb *fb, int i, u32 addr, u32 size, u32 pitch,
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u32 flags, struct nvkm_fb_tile *tile)
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{
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tile->addr = 0x00000001 | addr;
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tile->limit = max(1u, addr + size) - 1;
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tile->pitch = pitch;
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if (flags & 4) {
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fb->func->tile.comp(fb, i, size, flags, tile);
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tile->addr |= 2;
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}
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}
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static void
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nv20_fb_tile_comp(struct nvkm_fb *fb, int i, u32 size, u32 flags,
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struct nvkm_fb_tile *tile)
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{
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u32 tiles = DIV_ROUND_UP(size, 0x40);
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u32 tags = round_up(tiles / fb->ram->parts, 0x40);
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if (!nvkm_mm_head(&fb->tags, 0, 1, tags, tags, 1, &tile->tag)) {
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if (!(flags & 2)) tile->zcomp = 0x00000000; /* Z16 */
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else tile->zcomp = 0x04000000; /* Z24S8 */
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tile->zcomp |= tile->tag->offset;
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tile->zcomp |= 0x80000000; /* enable */
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#ifdef __BIG_ENDIAN
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tile->zcomp |= 0x08000000;
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#endif
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}
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}
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void
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nv20_fb_tile_fini(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile)
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{
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tile->addr = 0;
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tile->limit = 0;
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tile->pitch = 0;
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tile->zcomp = 0;
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nvkm_mm_free(&fb->tags, &tile->tag);
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}
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void
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nv20_fb_tile_prog(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile)
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{
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struct nvkm_device *device = fb->subdev.device;
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nvkm_wr32(device, 0x100244 + (i * 0x10), tile->limit);
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nvkm_wr32(device, 0x100248 + (i * 0x10), tile->pitch);
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nvkm_wr32(device, 0x100240 + (i * 0x10), tile->addr);
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nvkm_rd32(device, 0x100240 + (i * 0x10));
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nvkm_wr32(device, 0x100300 + (i * 0x04), tile->zcomp);
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}
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u32
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nv20_fb_tags(struct nvkm_fb *fb)
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{
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const u32 tags = nvkm_rd32(fb->subdev.device, 0x100320);
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return tags ? tags + 1 : 0;
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}
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static const struct nvkm_fb_func
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nv20_fb = {
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.tags = nv20_fb_tags,
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.tile.regions = 8,
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.tile.init = nv20_fb_tile_init,
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.tile.comp = nv20_fb_tile_comp,
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.tile.fini = nv20_fb_tile_fini,
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.tile.prog = nv20_fb_tile_prog,
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.ram_new = nv20_ram_new,
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};
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int
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nv20_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb)
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{
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return nvkm_fb_new_(&nv20_fb, device, index, pfb);
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}
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