diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/mc/base.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/mc/base.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mc/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mc/base.c new file mode 100644 index 000000000..c85600ba6 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mc/base.c @@ -0,0 +1,147 @@ +/* + * Copyright 2012 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 + */ +#include "priv.h" + +#include <core/option.h> +#include <subdev/top.h> + +void +nvkm_mc_unk260(struct nvkm_device *device, u32 data) +{ + struct nvkm_mc *mc = device->mc; + if (likely(mc) && mc->func->unk260) + mc->func->unk260(mc, data); +} + +void +nvkm_mc_intr_mask(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, bool en) +{ + struct nvkm_subdev *subdev = nvkm_device_subdev(device, type, inst); + + if (subdev) { + if (en) + nvkm_intr_allow(subdev, NVKM_INTR_SUBDEV); + else + nvkm_intr_block(subdev, NVKM_INTR_SUBDEV); + } +} + +static u32 +nvkm_mc_reset_mask(struct nvkm_device *device, bool isauto, enum nvkm_subdev_type type, int inst) +{ + struct nvkm_mc *mc = device->mc; + const struct nvkm_mc_map *map; + u64 pmc_enable = 0; + if (likely(mc)) { + if (!(pmc_enable = nvkm_top_reset(device, type, inst))) { + for (map = mc->func->reset; map && map->stat; map++) { + if (!isauto || !map->noauto) { + if (map->type == type && map->inst == inst) { + pmc_enable = map->stat; + break; + } + } + } + } + } + return pmc_enable; +} + +void +nvkm_mc_reset(struct nvkm_device *device, enum nvkm_subdev_type type, int inst) +{ + u64 pmc_enable = nvkm_mc_reset_mask(device, true, type, inst); + if (pmc_enable) { + device->mc->func->device->disable(device->mc, pmc_enable); + device->mc->func->device->enable(device->mc, pmc_enable); + } +} + +void +nvkm_mc_disable(struct nvkm_device *device, enum nvkm_subdev_type type, int inst) +{ + u64 pmc_enable = nvkm_mc_reset_mask(device, false, type, inst); + if (pmc_enable) + device->mc->func->device->disable(device->mc, pmc_enable); +} + +void +nvkm_mc_enable(struct nvkm_device *device, enum nvkm_subdev_type type, int inst) +{ + u64 pmc_enable = nvkm_mc_reset_mask(device, false, type, inst); + if (pmc_enable) + device->mc->func->device->enable(device->mc, pmc_enable); +} + +bool +nvkm_mc_enabled(struct nvkm_device *device, enum nvkm_subdev_type type, int inst) +{ + u64 pmc_enable = nvkm_mc_reset_mask(device, false, type, inst); + + return (pmc_enable != 0) && device->mc->func->device->enabled(device->mc, pmc_enable); +} + +static int +nvkm_mc_init(struct nvkm_subdev *subdev) +{ + struct nvkm_mc *mc = nvkm_mc(subdev); + if (mc->func->init) + mc->func->init(mc); + return 0; +} + +static void * +nvkm_mc_dtor(struct nvkm_subdev *subdev) +{ + return nvkm_mc(subdev); +} + +static const struct nvkm_subdev_func +nvkm_mc = { + .dtor = nvkm_mc_dtor, + .init = nvkm_mc_init, +}; + +int +nvkm_mc_new_(const struct nvkm_mc_func *func, struct nvkm_device *device, + enum nvkm_subdev_type type, int inst, struct nvkm_mc **pmc) +{ + struct nvkm_mc *mc; + int ret; + + if (!(mc = *pmc = kzalloc(sizeof(*mc), GFP_KERNEL))) + return -ENOMEM; + + nvkm_subdev_ctor(&nvkm_mc, device, type, inst, &mc->subdev); + mc->func = func; + + if (mc->func->intr) { + ret = nvkm_intr_add(mc->func->intr, mc->func->intrs, &mc->subdev, + mc->func->intr_nonstall ? 2 : 1, &mc->intr); + if (ret) + return ret; + } + + return 0; +} |