| /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| /* |
| * |
| * (C) COPYRIGHT 2021-2022 ARM Limited. All rights reserved. |
| * |
| * This program is free software and is provided to you under the terms of the |
| * GNU General Public License version 2 as published by the Free Software |
| * Foundation, and any use by you of this program is subject to the terms |
| * of such GNU license. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, you can access it online at |
| * http://www.gnu.org/licenses/gpl-2.0.html. |
| * |
| */ |
| |
| #ifndef _KBASE_CSF_FIRMWARE_CORE_DUMP_H_ |
| #define _KBASE_CSF_FIRMWARE_CORE_DUMP_H_ |
| |
| struct kbase_device; |
| |
| /** Offset of the last field of core dump entry from the image header */ |
| #define CORE_DUMP_ENTRY_START_ADDR_OFFSET (0x4) |
| |
| /** |
| * kbase_csf_firmware_core_dump_entry_parse() - Parse a "core dump" entry from |
| * the image header. |
| * |
| * @kbdev: Instance of a GPU platform device that implements a CSF interface. |
| * @entry: Pointer to section. |
| * |
| * Read a "core dump" entry from the image header, check the version for |
| * compatibility and store the address pointer. |
| * |
| * Return: 0 if successfully parse entry, negative error code otherwise. |
| */ |
| int kbase_csf_firmware_core_dump_entry_parse(struct kbase_device *kbdev, const u32 *entry); |
| |
| /** |
| * kbase_csf_firmware_core_dump_init() - Initialize firmware core dump support |
| * |
| * @kbdev: Instance of a GPU platform device that implements a CSF interface. |
| * Must be zero-initialized. |
| * |
| * Creates the fw_core_dump debugfs file through which to request a firmware |
| * core dump. The created debugfs file is cleaned up as part of kbdev debugfs |
| * cleanup. |
| * |
| * The fw_core_dump debugs file that case be used in the following way: |
| * |
| * To explicitly request core dump: |
| * echo 1 >/sys/kernel/debug/mali0/fw_core_dump |
| * |
| * To output current core dump (after explicitly requesting a core dump, or |
| * kernel driver reported an internal firmware error): |
| * cat /sys/kernel/debug/mali0/fw_core_dump |
| */ |
| void kbase_csf_firmware_core_dump_init(struct kbase_device *const kbdev); |
| |
| #endif /* _KBASE_CSF_FIRMWARE_CORE_DUMP_H_ */ |