38d4e5cf5b
Fixes a crash booting on those platforms with nouveau.
Fixes: 4cdd2450bf ("drm/nouveau/pmu/gm200-: use alternate falcon reset sequence")
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Karol Herbst <kherbst@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Cc: nouveau@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v5.17+
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220322124800.2605463-1-kherbst@redhat.com
59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/*
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* Copyright 2016 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 <bskeggs@redhat.com>
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*/
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#include "priv.h"
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void
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gp102_pmu_reset(struct nvkm_pmu *pmu)
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{
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struct nvkm_device *device = pmu->subdev.device;
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nvkm_mask(device, 0x10a3c0, 0x00000001, 0x00000001);
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nvkm_mask(device, 0x10a3c0, 0x00000001, 0x00000000);
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}
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static bool
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gp102_pmu_enabled(struct nvkm_pmu *pmu)
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{
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return !(nvkm_rd32(pmu->subdev.device, 0x10a3c0) & 0x00000001);
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}
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static const struct nvkm_pmu_func
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gp102_pmu = {
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.flcn = &gm200_pmu_flcn,
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.enabled = gp102_pmu_enabled,
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.reset = gp102_pmu_reset,
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};
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static const struct nvkm_pmu_fwif
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gp102_pmu_fwif[] = {
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{ -1, gm200_pmu_nofw, &gp102_pmu },
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{}
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};
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int
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gp102_pmu_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
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struct nvkm_pmu **ppmu)
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{
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return nvkm_pmu_new_(gp102_pmu_fwif, device, type, inst, ppmu);
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}
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