mirror of
https://github.com/torvalds/linux.git
synced 2026-04-19 23:34:00 -04:00
d22915d22d
Starting from Turing, the driver is no longer responsible for initiating DEVINIT when required as the GPU started loading a FW image from ROM and executing DEVINIT itself after power-on. However - we apparently still need to wait for it to complete. This should correct some issues with runpm on some systems, where we get control of the HW before it's been fully reinitialised after resume from suspend. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230130223715.1831509-1-bskeggs@redhat.com
113 lines
3.0 KiB
C
113 lines
3.0 KiB
C
/*
|
|
* Copyright 2018 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.
|
|
*/
|
|
#include "nv50.h"
|
|
|
|
#include <subdev/bios.h>
|
|
#include <subdev/bios/pll.h>
|
|
#include <subdev/clk/pll.h>
|
|
|
|
static int
|
|
tu102_devinit_pll_set(struct nvkm_devinit *init, u32 type, u32 freq)
|
|
{
|
|
struct nvkm_subdev *subdev = &init->subdev;
|
|
struct nvkm_device *device = subdev->device;
|
|
struct nvbios_pll info;
|
|
int head = type - PLL_VPLL0;
|
|
int N, fN, M, P;
|
|
int ret;
|
|
|
|
ret = nvbios_pll_parse(device->bios, type, &info);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = gt215_pll_calc(subdev, &info, freq, &N, &fN, &M, &P);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
switch (info.type) {
|
|
case PLL_VPLL0:
|
|
case PLL_VPLL1:
|
|
case PLL_VPLL2:
|
|
case PLL_VPLL3:
|
|
nvkm_wr32(device, 0x00ef10 + (head * 0x40), fN << 16);
|
|
nvkm_wr32(device, 0x00ef04 + (head * 0x40), (P << 16) |
|
|
(N << 8) |
|
|
(M << 0));
|
|
/*XXX*/
|
|
nvkm_wr32(device, 0x00ef0c + (head * 0x40), 0x00000900);
|
|
nvkm_wr32(device, 0x00ef00 + (head * 0x40), 0x02000014);
|
|
break;
|
|
default:
|
|
nvkm_warn(subdev, "%08x/%dKhz unimplemented\n", type, freq);
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
tu102_devinit_wait(struct nvkm_device *device)
|
|
{
|
|
unsigned timeout = 50 + 2000;
|
|
|
|
do {
|
|
if (nvkm_rd32(device, 0x118128) & 0x00000001) {
|
|
if ((nvkm_rd32(device, 0x118234) & 0x000000ff) == 0xff)
|
|
return 0;
|
|
}
|
|
|
|
usleep_range(1000, 2000);
|
|
} while (timeout--);
|
|
|
|
return -ETIMEDOUT;
|
|
}
|
|
|
|
int
|
|
tu102_devinit_post(struct nvkm_devinit *base, bool post)
|
|
{
|
|
struct nv50_devinit *init = nv50_devinit(base);
|
|
int ret;
|
|
|
|
ret = tu102_devinit_wait(init->base.subdev.device);
|
|
if (ret)
|
|
return ret;
|
|
|
|
gm200_devinit_preos(init, post);
|
|
return 0;
|
|
}
|
|
|
|
static const struct nvkm_devinit_func
|
|
tu102_devinit = {
|
|
.init = nv50_devinit_init,
|
|
.post = tu102_devinit_post,
|
|
.pll_set = tu102_devinit_pll_set,
|
|
.disable = gm107_devinit_disable,
|
|
};
|
|
|
|
int
|
|
tu102_devinit_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
|
|
struct nvkm_devinit **pinit)
|
|
{
|
|
return nv50_devinit_new_(&tu102_devinit, device, type, inst, pinit);
|
|
}
|