Release 4.11 drivers/gpu/drm/nouveau/nvkm/subdev/bus/hwsq.c
/*
* Copyright 2013 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 <bskeggs@redhat.com>
*/
#include "priv.h"
struct nvkm_hwsq {
struct nvkm_subdev *subdev;
u32 addr;
u32 data;
struct {
u8 data[512];
u16 size;
}
c;
};
static void
hwsq_cmd(struct nvkm_hwsq *hwsq, int size, u8 data[])
{
memcpy(&hwsq->c.data[hwsq->c.size], data, size * sizeof(data[0]));
hwsq->c.size += size;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 55 | 100.00% | 2 | 100.00% |
| Total | 55 | 100.00% | 2 | 100.00% |
int
nvkm_hwsq_init(struct nvkm_subdev *subdev, struct nvkm_hwsq **phwsq)
{
struct nvkm_hwsq *hwsq;
hwsq = *phwsq = kmalloc(sizeof(*hwsq), GFP_KERNEL);
if (hwsq) {
hwsq->subdev = subdev;
hwsq->addr = ~0;
hwsq->data = ~0;
memset(hwsq->c.data, 0x7f, sizeof(hwsq->c.data));
hwsq->c.size = 0;
}
return hwsq ? 0 : -ENOMEM;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 99 | 100.00% | 3 | 100.00% |
| Total | 99 | 100.00% | 3 | 100.00% |
int
nvkm_hwsq_fini(struct nvkm_hwsq **phwsq, bool exec)
{
struct nvkm_hwsq *hwsq = *phwsq;
int ret = 0, i;
if (hwsq) {
struct nvkm_subdev *subdev = hwsq->subdev;
struct nvkm_bus *bus = subdev->device->bus;
hwsq->c.size = (hwsq->c.size + 4) / 4;
if (hwsq->c.size <= bus->func->hwsq_size) {
if (exec)
ret = bus->func->hwsq_exec(bus,
(u32 *)hwsq->c.data,
hwsq->c.size);
if (ret)
nvkm_error(subdev, "hwsq exec failed: %d\n", ret);
} else {
nvkm_error(subdev, "hwsq ucode too large\n");
ret = -ENOSPC;
}
for (i = 0; ret && i < hwsq->c.size; i++)
nvkm_error(subdev, "\t%08x\n", ((u32 *)hwsq->c.data)[i]);
*phwsq = NULL;
kfree(hwsq);
}
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 202 | 100.00% | 5 | 100.00% |
| Total | 202 | 100.00% | 5 | 100.00% |
void
nvkm_hwsq_wr32(struct nvkm_hwsq *hwsq, u32 addr, u32 data)
{
nvkm_debug(hwsq->subdev, "R[%06x] = %08x\n", addr, data);
if (hwsq->data != data) {
if ((data & 0xffff0000) != (hwsq->data & 0xffff0000)) {
hwsq_cmd(hwsq, 5, (u8[]){ 0xe2, data, data >> 8,
data >> 16, data >> 24 });
} else {
hwsq_cmd(hwsq, 3, (u8[]){ 0x42, data, data >> 8 });
}
}
if ((addr & 0xffff0000) != (hwsq->addr & 0xffff0000)) {
hwsq_cmd(hwsq, 5, (u8[]){ 0xe0, addr, addr >> 8,
addr >> 16, addr >> 24 });
} else {
hwsq_cmd(hwsq, 3, (u8[]){ 0x40, addr, addr >> 8 });
}
hwsq->addr = addr;
hwsq->data = data;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 193 | 100.00% | 3 | 100.00% |
| Total | 193 | 100.00% | 3 | 100.00% |
void
nvkm_hwsq_setf(struct nvkm_hwsq *hwsq, u8 flag, int data)
{
nvkm_debug(hwsq->subdev, " FLAG[%02x] = %d\n", flag, data);
flag += 0x80;
if (data >= 0)
flag += 0x20;
if (data >= 1)
flag += 0x20;
hwsq_cmd(hwsq, 1, (u8[]){ flag });
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 68 | 100.00% | 3 | 100.00% |
| Total | 68 | 100.00% | 3 | 100.00% |
void
nvkm_hwsq_wait(struct nvkm_hwsq *hwsq, u8 flag, u8 data)
{
nvkm_debug(hwsq->subdev, " WAIT[%02x] = %d\n", flag, data);
hwsq_cmd(hwsq, 3, (u8[]){ 0x5f, flag, data });
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 48 | 100.00% | 3 | 100.00% |
| Total | 48 | 100.00% | 3 | 100.00% |
void
nvkm_hwsq_wait_vblank(struct nvkm_hwsq *hwsq)
{
struct nvkm_subdev *subdev = hwsq->subdev;
struct nvkm_device *device = subdev->device;
u32 heads, x, y, px = 0;
int i, head_sync;
heads = nvkm_rd32(device, 0x610050);
for (i = 0; i < 2; i++) {
/* Heuristic: sync to head with biggest resolution */
if (heads & (2 << (i << 3))) {
x = nvkm_rd32(device, 0x610b40 + (0x540 * i));
y = (x & 0xffff0000) >> 16;
x &= 0x0000ffff;
if ((x * y) > px) {
px = (x * y);
head_sync = i;
}
}
}
if (px == 0) {
nvkm_debug(subdev, "WAIT VBLANK !NO ACTIVE HEAD\n");
return;
}
nvkm_debug(subdev, "WAIT VBLANK HEAD%d\n", head_sync);
nvkm_hwsq_wait(hwsq, head_sync ? 0x3 : 0x1, 0x0);
nvkm_hwsq_wait(hwsq, head_sync ? 0x3 : 0x1, 0x1);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Roy Spliet | 188 | 99.47% | 1 | 50.00% |
| Ben Skeggs | 1 | 0.53% | 1 | 50.00% |
| Total | 189 | 100.00% | 2 | 100.00% |
void
nvkm_hwsq_nsec(struct nvkm_hwsq *hwsq, u32 nsec)
{
u8 shift = 0, usec = nsec / 1000;
while (usec & ~3) {
usec >>= 2;
shift++;
}
nvkm_debug(hwsq->subdev, " DELAY = %d ns\n", nsec);
hwsq_cmd(hwsq, 1, (u8[]){ 0x00 | (shift << 2) | usec });
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 73 | 98.65% | 3 | 75.00% |
| Roy Spliet | 1 | 1.35% | 1 | 25.00% |
| Total | 74 | 100.00% | 4 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 772 | 80.25% | 5 | 71.43% |
| Roy Spliet | 190 | 19.75% | 2 | 28.57% |
| Total | 962 | 100.00% | 7 | 100.00% |
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