From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/gpu/drm/nouveau/nvkm/core/firmware.c | 109 +++++++++++++++++++++++++++ 1 file changed, 109 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nvkm/core/firmware.c (limited to 'drivers/gpu/drm/nouveau/nvkm/core/firmware.c') diff --git a/drivers/gpu/drm/nouveau/nvkm/core/firmware.c b/drivers/gpu/drm/nouveau/nvkm/core/firmware.c new file mode 100644 index 000000000..ca1f8463c --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/core/firmware.c @@ -0,0 +1,109 @@ +/* + * 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 +#include + +int +nvkm_firmware_load_name(const struct nvkm_subdev *subdev, const char *base, + const char *name, int ver, const struct firmware **pfw) +{ + char path[64]; + int ret; + + snprintf(path, sizeof(path), "%s%s", base, name); + ret = nvkm_firmware_get(subdev, path, ver, pfw); + if (ret < 0) + return ret; + + return 0; +} + +int +nvkm_firmware_load_blob(const struct nvkm_subdev *subdev, const char *base, + const char *name, int ver, struct nvkm_blob *blob) +{ + const struct firmware *fw; + int ret; + + ret = nvkm_firmware_load_name(subdev, base, name, ver, &fw); + if (ret == 0) { + blob->data = kmemdup(fw->data, fw->size, GFP_KERNEL); + blob->size = fw->size; + nvkm_firmware_put(fw); + if (!blob->data) + return -ENOMEM; + } + + return ret; +} + +/** + * nvkm_firmware_get - load firmware from the official nvidia/chip/ directory + * @subdev: subdevice that will use that firmware + * @fwname: name of firmware file to load + * @ver: firmware version to load + * @fw: firmware structure to load to + * + * Use this function to load firmware files in the form nvidia/chip/fwname.bin. + * Firmware files released by NVIDIA will always follow this format. + */ +int +nvkm_firmware_get(const struct nvkm_subdev *subdev, const char *fwname, int ver, + const struct firmware **fw) +{ + struct nvkm_device *device = subdev->device; + char f[64]; + char cname[16]; + int i; + + /* Convert device name to lowercase */ + strncpy(cname, device->chip->name, sizeof(cname)); + cname[sizeof(cname) - 1] = '\0'; + i = strlen(cname); + while (i) { + --i; + cname[i] = tolower(cname[i]); + } + + if (ver != 0) + snprintf(f, sizeof(f), "nvidia/%s/%s-%d.bin", cname, fwname, ver); + else + snprintf(f, sizeof(f), "nvidia/%s/%s.bin", cname, fwname); + + if (!firmware_request_nowarn(fw, f, device->dev)) { + nvkm_debug(subdev, "firmware \"%s\" loaded - %zu byte(s)\n", + f, (*fw)->size); + return 0; + } + + nvkm_debug(subdev, "firmware \"%s\" unavailable\n", f); + return -ENOENT; +} + +/* + * nvkm_firmware_put - release firmware loaded with nvkm_firmware_get + */ +void +nvkm_firmware_put(const struct firmware *fw) +{ + release_firmware(fw); +} -- cgit v1.2.3