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/*
* 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, 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, &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, int index, struct nvkm_fb **pfb)
{
return nvkm_fb_new_(&nv20_fb, device, index, pfb);
}
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