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/*
* Copyright 2014 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 "priv.h"
#include <subdev/fb.h>
#include <subdev/timer.h>
void
gm107_ltc_cbc_clear(struct nvkm_ltc *ltc, u32 start, u32 limit)
{
struct nvkm_device *device = ltc->subdev.device;
nvkm_wr32(device, 0x17e270, start);
nvkm_wr32(device, 0x17e274, limit);
nvkm_mask(device, 0x17e26c, 0x00000000, 0x00000004);
}
void
gm107_ltc_cbc_wait(struct nvkm_ltc *ltc)
{
struct nvkm_device *device = ltc->subdev.device;
int c, s;
for (c = 0; c < ltc->ltc_nr; c++) {
for (s = 0; s < ltc->lts_nr; s++) {
const u32 addr = 0x14046c + (c * 0x2000) + (s * 0x200);
nvkm_wait_msec(device, 2000, addr,
0x00000004, 0x00000000);
}
}
}
void
gm107_ltc_zbc_clear_color(struct nvkm_ltc *ltc, int i, const u32 color[4])
{
struct nvkm_device *device = ltc->subdev.device;
nvkm_mask(device, 0x17e338, 0x0000000f, i);
nvkm_wr32(device, 0x17e33c, color[0]);
nvkm_wr32(device, 0x17e340, color[1]);
nvkm_wr32(device, 0x17e344, color[2]);
nvkm_wr32(device, 0x17e348, color[3]);
}
void
gm107_ltc_zbc_clear_depth(struct nvkm_ltc *ltc, int i, const u32 depth)
{
struct nvkm_device *device = ltc->subdev.device;
nvkm_mask(device, 0x17e338, 0x0000000f, i);
nvkm_wr32(device, 0x17e34c, depth);
}
static void
gm107_ltc_lts_isr(struct nvkm_ltc *ltc, int c, int s)
{
struct nvkm_subdev *subdev = <c->subdev;
struct nvkm_device *device = subdev->device;
u32 base = 0x140000 + (c * 0x2000) + (s * 0x200);
u32 stat = nvkm_rd32(device, base + 0x00c);
if (stat) {
nvkm_error(subdev, "LTC%d_LTS%d: %08x\n", c, s, stat);
nvkm_wr32(device, base + 0x00c, stat);
}
}
void
gm107_ltc_intr(struct nvkm_ltc *ltc)
{
struct nvkm_device *device = ltc->subdev.device;
u32 mask;
mask = nvkm_rd32(device, 0x00017c);
while (mask) {
u32 s, c = __ffs(mask);
for (s = 0; s < ltc->lts_nr; s++)
gm107_ltc_lts_isr(ltc, c, s);
mask &= ~(1 << c);
}
}
static int
gm107_ltc_oneinit(struct nvkm_ltc *ltc)
{
struct nvkm_device *device = ltc->subdev.device;
const u32 parts = nvkm_rd32(device, 0x022438);
const u32 mask = nvkm_rd32(device, 0x021c14);
const u32 slice = nvkm_rd32(device, 0x17e280) >> 28;
int i;
for (i = 0; i < parts; i++) {
if (!(mask & (1 << i)))
ltc->ltc_nr++;
}
ltc->lts_nr = slice;
return gf100_ltc_oneinit_tag_ram(ltc);
}
static void
gm107_ltc_init(struct nvkm_ltc *ltc)
{
struct nvkm_device *device = ltc->subdev.device;
u32 lpg128 = !(nvkm_rd32(device, 0x100c80) & 0x00000001);
nvkm_wr32(device, 0x17e27c, ltc->ltc_nr);
nvkm_wr32(device, 0x17e278, ltc->tag_base);
nvkm_mask(device, 0x17e264, 0x00000002, lpg128 ? 0x00000002 : 0x00000000);
}
static const struct nvkm_ltc_func
gm107_ltc = {
.oneinit = gm107_ltc_oneinit,
.init = gm107_ltc_init,
.intr = gm107_ltc_intr,
.cbc_clear = gm107_ltc_cbc_clear,
.cbc_wait = gm107_ltc_cbc_wait,
.zbc = 16,
.zbc_clear_color = gm107_ltc_zbc_clear_color,
.zbc_clear_depth = gm107_ltc_zbc_clear_depth,
.invalidate = gf100_ltc_invalidate,
.flush = gf100_ltc_flush,
};
int
gm107_ltc_new(struct nvkm_device *device, int index, struct nvkm_ltc **pltc)
{
return nvkm_ltc_new_(&gm107_ltc, device, index, pltc);
}
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