cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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dtpm.c (1820B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * Copyright 2021 Linaro Limited
      4 *
      5 * Author: Daniel Lezcano <daniel.lezcano@linaro.org>
      6 *
      7 * DTPM hierarchy description
      8 */
      9#include <linux/dtpm.h>
     10#include <linux/module.h>
     11#include <linux/of.h>
     12#include <linux/platform_device.h>
     13
     14static struct dtpm_node __initdata rk3399_hierarchy[] = {
     15	[0]{ .name = "rk3399",
     16	     .type = DTPM_NODE_VIRTUAL },
     17	[1]{ .name = "package",
     18	     .type = DTPM_NODE_VIRTUAL,
     19	     .parent = &rk3399_hierarchy[0] },
     20	[2]{ .name = "/cpus/cpu@0",
     21	     .type = DTPM_NODE_DT,
     22	     .parent = &rk3399_hierarchy[1] },
     23	[3]{ .name = "/cpus/cpu@1",
     24	     .type = DTPM_NODE_DT,
     25	     .parent = &rk3399_hierarchy[1] },
     26	[4]{ .name = "/cpus/cpu@2",
     27	     .type = DTPM_NODE_DT,
     28	     .parent = &rk3399_hierarchy[1] },
     29	[5]{ .name = "/cpus/cpu@3",
     30	     .type = DTPM_NODE_DT,
     31	     .parent = &rk3399_hierarchy[1] },
     32	[6]{ .name = "/cpus/cpu@100",
     33	     .type = DTPM_NODE_DT,
     34	     .parent = &rk3399_hierarchy[1] },
     35	[7]{ .name = "/cpus/cpu@101",
     36	     .type = DTPM_NODE_DT,
     37	     .parent = &rk3399_hierarchy[1] },
     38	[8]{ .name = "/gpu@ff9a0000",
     39	     .type = DTPM_NODE_DT,
     40	     .parent = &rk3399_hierarchy[1] },
     41	[9]{ /* sentinel */ }
     42};
     43
     44static struct of_device_id __initdata rockchip_dtpm_match_table[] = {
     45        { .compatible = "rockchip,rk3399", .data = rk3399_hierarchy },
     46        {},
     47};
     48
     49static int __init rockchip_dtpm_init(void)
     50{
     51	return dtpm_create_hierarchy(rockchip_dtpm_match_table);
     52}
     53module_init(rockchip_dtpm_init);
     54
     55static void __exit rockchip_dtpm_exit(void)
     56{
     57	return dtpm_destroy_hierarchy();
     58}
     59module_exit(rockchip_dtpm_exit);
     60
     61MODULE_SOFTDEP("pre: panfrost cpufreq-dt");
     62MODULE_DESCRIPTION("Rockchip DTPM driver");
     63MODULE_LICENSE("GPL");
     64MODULE_ALIAS("platform:dtpm");
     65MODULE_AUTHOR("Daniel Lezcano <daniel.lezcano@kernel.org");