c6007dc4e5
In case of successful suspend, devinit will have to be run and this is the behavior currently hardcoded. However, as FD bug 94725 suggests, there might be cases where runtime suspend leaves the GPU powered, and in such cases devinit should not be run on resume. On GF100+ we have a reliable way to know whether we need to run devinit. Use it instead of blindly trusting the flag set by nvkm_devinit_fini(). The code around the NvForcePost also needs to be slightly reworked in order to keep working. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Suggested-by: Dave Airlie <airlied@redhat.com> Suggested-by: Karol Herbst <nouveau@karolherbst.de> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
121 lines
3.4 KiB
C
121 lines
3.4 KiB
C
/*
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* Copyright 2013 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs
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*/
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#include "nv50.h"
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#include <subdev/bios.h>
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#include <subdev/bios/init.h>
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#include <subdev/bios/pll.h>
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#include <subdev/clk/pll.h>
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int
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gf100_devinit_pll_set(struct nvkm_devinit *init, u32 type, u32 freq)
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{
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struct nvkm_subdev *subdev = &init->subdev;
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struct nvkm_device *device = subdev->device;
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struct nvbios_pll info;
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int N, fN, M, P;
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int ret;
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ret = nvbios_pll_parse(device->bios, type, &info);
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if (ret)
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return ret;
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ret = gt215_pll_calc(subdev, &info, freq, &N, &fN, &M, &P);
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if (ret < 0)
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return ret;
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switch (info.type) {
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case PLL_VPLL0:
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case PLL_VPLL1:
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case PLL_VPLL2:
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case PLL_VPLL3:
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nvkm_mask(device, info.reg + 0x0c, 0x00000000, 0x00000100);
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nvkm_wr32(device, info.reg + 0x04, (P << 16) | (N << 8) | M);
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nvkm_wr32(device, info.reg + 0x10, fN << 16);
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break;
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default:
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nvkm_warn(subdev, "%08x/%dKhz unimplemented\n", type, freq);
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ret = -EINVAL;
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break;
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}
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return ret;
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}
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static u64
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gf100_devinit_disable(struct nvkm_devinit *init)
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{
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struct nvkm_device *device = init->subdev.device;
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u32 r022500 = nvkm_rd32(device, 0x022500);
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u64 disable = 0ULL;
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if (r022500 & 0x00000001)
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disable |= (1ULL << NVKM_ENGINE_DISP);
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if (r022500 & 0x00000002) {
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disable |= (1ULL << NVKM_ENGINE_MSPDEC);
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disable |= (1ULL << NVKM_ENGINE_MSPPP);
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}
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if (r022500 & 0x00000004)
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disable |= (1ULL << NVKM_ENGINE_MSVLD);
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if (r022500 & 0x00000008)
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disable |= (1ULL << NVKM_ENGINE_MSENC);
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if (r022500 & 0x00000100)
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disable |= (1ULL << NVKM_ENGINE_CE0);
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if (r022500 & 0x00000200)
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disable |= (1ULL << NVKM_ENGINE_CE1);
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return disable;
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}
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void
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gf100_devinit_preinit(struct nvkm_devinit *base)
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{
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struct nv50_devinit *init = nv50_devinit(base);
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struct nvkm_subdev *subdev = &init->base.subdev;
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struct nvkm_device *device = subdev->device;
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/*
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* This bit is set by devinit, and flips back to 0 on suspend. We
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* can use it as a reliable way to know whether we should run devinit.
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*/
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base->post = ((nvkm_rd32(device, 0x2240c) & BIT(1)) == 0);
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}
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static const struct nvkm_devinit_func
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gf100_devinit = {
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.preinit = gf100_devinit_preinit,
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.init = nv50_devinit_init,
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.post = nv04_devinit_post,
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.pll_set = gf100_devinit_pll_set,
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.disable = gf100_devinit_disable,
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};
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int
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gf100_devinit_new(struct nvkm_device *device, int index,
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struct nvkm_devinit **pinit)
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{
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return nv50_devinit_new_(&gf100_devinit, device, index, pinit);
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}
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