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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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ebb195dbb3
Ampere needs different handling here, most of what we touch has moved. We probably want to refactor these interfaces in general, but I'm not yet sure how they should look, this will get the job done for now. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Lyude Paul <lyude@redhat.com>
147 lines
4 KiB
C
147 lines
4 KiB
C
/*
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* Copyright 2012 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 "priv.h"
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#include <core/option.h>
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#include <subdev/top.h>
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void
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nvkm_mc_unk260(struct nvkm_device *device, u32 data)
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{
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struct nvkm_mc *mc = device->mc;
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if (likely(mc) && mc->func->unk260)
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mc->func->unk260(mc, data);
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}
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void
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nvkm_mc_intr_mask(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, bool en)
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{
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struct nvkm_subdev *subdev = nvkm_device_subdev(device, type, inst);
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if (subdev) {
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if (en)
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nvkm_intr_allow(subdev, NVKM_INTR_SUBDEV);
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else
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nvkm_intr_block(subdev, NVKM_INTR_SUBDEV);
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}
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}
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static u32
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nvkm_mc_reset_mask(struct nvkm_device *device, bool isauto, enum nvkm_subdev_type type, int inst)
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{
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struct nvkm_mc *mc = device->mc;
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const struct nvkm_mc_map *map;
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u64 pmc_enable = 0;
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if (likely(mc)) {
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if (!(pmc_enable = nvkm_top_reset(device, type, inst))) {
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for (map = mc->func->reset; map && map->stat; map++) {
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if (!isauto || !map->noauto) {
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if (map->type == type && map->inst == inst) {
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pmc_enable = map->stat;
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break;
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}
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}
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}
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}
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}
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return pmc_enable;
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}
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void
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nvkm_mc_reset(struct nvkm_device *device, enum nvkm_subdev_type type, int inst)
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{
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u64 pmc_enable = nvkm_mc_reset_mask(device, true, type, inst);
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if (pmc_enable) {
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device->mc->func->device->disable(device->mc, pmc_enable);
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device->mc->func->device->enable(device->mc, pmc_enable);
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}
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}
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void
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nvkm_mc_disable(struct nvkm_device *device, enum nvkm_subdev_type type, int inst)
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{
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u64 pmc_enable = nvkm_mc_reset_mask(device, false, type, inst);
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if (pmc_enable)
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device->mc->func->device->disable(device->mc, pmc_enable);
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}
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void
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nvkm_mc_enable(struct nvkm_device *device, enum nvkm_subdev_type type, int inst)
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{
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u64 pmc_enable = nvkm_mc_reset_mask(device, false, type, inst);
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if (pmc_enable)
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device->mc->func->device->enable(device->mc, pmc_enable);
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}
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bool
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nvkm_mc_enabled(struct nvkm_device *device, enum nvkm_subdev_type type, int inst)
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{
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u64 pmc_enable = nvkm_mc_reset_mask(device, false, type, inst);
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return (pmc_enable != 0) && device->mc->func->device->enabled(device->mc, pmc_enable);
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}
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static int
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nvkm_mc_init(struct nvkm_subdev *subdev)
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{
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struct nvkm_mc *mc = nvkm_mc(subdev);
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if (mc->func->init)
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mc->func->init(mc);
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return 0;
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}
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static void *
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nvkm_mc_dtor(struct nvkm_subdev *subdev)
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{
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return nvkm_mc(subdev);
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}
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static const struct nvkm_subdev_func
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nvkm_mc = {
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.dtor = nvkm_mc_dtor,
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.init = nvkm_mc_init,
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};
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int
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nvkm_mc_new_(const struct nvkm_mc_func *func, struct nvkm_device *device,
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enum nvkm_subdev_type type, int inst, struct nvkm_mc **pmc)
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{
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struct nvkm_mc *mc;
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int ret;
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if (!(mc = *pmc = kzalloc(sizeof(*mc), GFP_KERNEL)))
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return -ENOMEM;
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nvkm_subdev_ctor(&nvkm_mc, device, type, inst, &mc->subdev);
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mc->func = func;
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if (mc->func->intr) {
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ret = nvkm_intr_add(mc->func->intr, mc->func->intrs, &mc->subdev,
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mc->func->intr_nonstall ? 2 : 1, &mc->intr);
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if (ret)
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return ret;
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}
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return 0;
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}
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