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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/gpu/drm/nouveau/nvkm/falcon/base.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/falcon/base.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/falcon/base.c | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/falcon/base.c b/drivers/gpu/drm/nouveau/nvkm/falcon/base.c new file mode 100644 index 000000000..f3f90c106 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/falcon/base.c @@ -0,0 +1,223 @@ +/* + * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. + * + * 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 AUTHORS OR COPYRIGHT HOLDERS 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 "priv.h" + +#include <subdev/mc.h> +#include <subdev/top.h> + +void +nvkm_falcon_load_imem(struct nvkm_falcon *falcon, void *data, u32 start, + u32 size, u16 tag, u8 port, bool secure) +{ + if (secure && !falcon->secret) { + nvkm_warn(falcon->user, + "writing with secure tag on a non-secure falcon!\n"); + return; + } + + falcon->func->load_imem(falcon, data, start, size, tag, port, + secure); +} + +void +nvkm_falcon_load_dmem(struct nvkm_falcon *falcon, void *data, u32 start, + u32 size, u8 port) +{ + mutex_lock(&falcon->dmem_mutex); + + falcon->func->load_dmem(falcon, data, start, size, port); + + mutex_unlock(&falcon->dmem_mutex); +} + +void +nvkm_falcon_read_dmem(struct nvkm_falcon *falcon, u32 start, u32 size, u8 port, + void *data) +{ + mutex_lock(&falcon->dmem_mutex); + + falcon->func->read_dmem(falcon, start, size, port, data); + + mutex_unlock(&falcon->dmem_mutex); +} + +void +nvkm_falcon_bind_context(struct nvkm_falcon *falcon, struct nvkm_memory *inst) +{ + if (!falcon->func->bind_context) { + nvkm_error(falcon->user, + "Context binding not supported on this falcon!\n"); + return; + } + + falcon->func->bind_context(falcon, inst); +} + +void +nvkm_falcon_set_start_addr(struct nvkm_falcon *falcon, u32 start_addr) +{ + falcon->func->set_start_addr(falcon, start_addr); +} + +void +nvkm_falcon_start(struct nvkm_falcon *falcon) +{ + falcon->func->start(falcon); +} + +int +nvkm_falcon_enable(struct nvkm_falcon *falcon) +{ + struct nvkm_device *device = falcon->owner->device; + int ret; + + nvkm_mc_enable(device, falcon->owner->type, falcon->owner->inst); + ret = falcon->func->enable(falcon); + if (ret) { + nvkm_mc_disable(device, falcon->owner->type, falcon->owner->inst); + return ret; + } + + return 0; +} + +void +nvkm_falcon_disable(struct nvkm_falcon *falcon) +{ + struct nvkm_device *device = falcon->owner->device; + + /* already disabled, return or wait_idle will timeout */ + if (!nvkm_mc_enabled(device, falcon->owner->type, falcon->owner->inst)) + return; + + falcon->func->disable(falcon); + + nvkm_mc_disable(device, falcon->owner->type, falcon->owner->inst); +} + +int +nvkm_falcon_reset(struct nvkm_falcon *falcon) +{ + if (!falcon->func->reset) { + nvkm_falcon_disable(falcon); + return nvkm_falcon_enable(falcon); + } + + return falcon->func->reset(falcon); +} + +int +nvkm_falcon_wait_for_halt(struct nvkm_falcon *falcon, u32 ms) +{ + return falcon->func->wait_for_halt(falcon, ms); +} + +int +nvkm_falcon_clear_interrupt(struct nvkm_falcon *falcon, u32 mask) +{ + return falcon->func->clear_interrupt(falcon, mask); +} + +static int +nvkm_falcon_oneinit(struct nvkm_falcon *falcon) +{ + const struct nvkm_falcon_func *func = falcon->func; + const struct nvkm_subdev *subdev = falcon->owner; + u32 reg; + + if (!falcon->addr) { + falcon->addr = nvkm_top_addr(subdev->device, subdev->type, subdev->inst); + if (WARN_ON(!falcon->addr)) + return -ENODEV; + } + + reg = nvkm_falcon_rd32(falcon, 0x12c); + falcon->version = reg & 0xf; + falcon->secret = (reg >> 4) & 0x3; + falcon->code.ports = (reg >> 8) & 0xf; + falcon->data.ports = (reg >> 12) & 0xf; + + reg = nvkm_falcon_rd32(falcon, 0x108); + falcon->code.limit = (reg & 0x1ff) << 8; + falcon->data.limit = (reg & 0x3fe00) >> 1; + + if (func->debug) { + u32 val = nvkm_falcon_rd32(falcon, func->debug); + falcon->debug = (val >> 20) & 0x1; + } + + return 0; +} + +void +nvkm_falcon_put(struct nvkm_falcon *falcon, const struct nvkm_subdev *user) +{ + if (unlikely(!falcon)) + return; + + mutex_lock(&falcon->mutex); + if (falcon->user == user) { + nvkm_debug(falcon->user, "released %s falcon\n", falcon->name); + falcon->user = NULL; + } + mutex_unlock(&falcon->mutex); +} + +int +nvkm_falcon_get(struct nvkm_falcon *falcon, const struct nvkm_subdev *user) +{ + int ret = 0; + + mutex_lock(&falcon->mutex); + if (falcon->user) { + nvkm_error(user, "%s falcon already acquired by %s!\n", + falcon->name, falcon->user->name); + mutex_unlock(&falcon->mutex); + return -EBUSY; + } + + nvkm_debug(user, "acquired %s falcon\n", falcon->name); + if (!falcon->oneinit) + ret = nvkm_falcon_oneinit(falcon); + falcon->user = user; + mutex_unlock(&falcon->mutex); + return ret; +} + +void +nvkm_falcon_dtor(struct nvkm_falcon *falcon) +{ +} + +int +nvkm_falcon_ctor(const struct nvkm_falcon_func *func, + struct nvkm_subdev *subdev, const char *name, u32 addr, + struct nvkm_falcon *falcon) +{ + falcon->func = func; + falcon->owner = subdev; + falcon->name = name; + falcon->addr = addr; + mutex_init(&falcon->mutex); + mutex_init(&falcon->dmem_mutex); + return 0; +} |