threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2020 MediaTek Inc.
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*/
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#include <linux/io.h>
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#include "adsp_helper.h"
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#include "adsp_bus_monitor.h"
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/**
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* TIMEOUT_VALUE = value * unit(15 cycle count) / clk_src
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*/
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#define BUS_MON_STAGE1_TIMEOUT_VALUE (0x01DA0A2B) /* 1.00 sec @ 466MHz */
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#define BUS_MON_STAGE2_TIMEOUT_VALUE (0x03B41456) /* 2.00 sec @ 466MHz */
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#define ADSP_BUS_MON_STATE (ADSP_BUS_MON_BACKUP_BASE)
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#define ADSP_BUS_MON_1ST_STAGE_BASE (ADSP_BUS_MON_BACKUP_BASE + sizeof(u32))
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#define ADSP_BUS_MON_2ND_STAGE_BASE (ADSP_BUS_MON_1ST_STAGE_BASE + \
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sizeof(struct bus_monitor_cblk))
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#define ADSP_BUS_MON_BACKUP_SIZE (sizeof(u32) + \
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2 * sizeof(struct bus_monitor_cblk))
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int adsp_bus_monitor_init(void)
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{
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/* Clear bus monitor register backup in DTCM */
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memset_io((void *)ADSP_BUS_MON_BACKUP_BASE, 0,
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(size_t)ADSP_BUS_MON_BACKUP_SIZE);
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/* initialize bus monitor */
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writel(BUS_MON_STAGE1_TIMEOUT_VALUE, ADSP_BUS_DBG_TIMER_CON0);
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writel(BUS_MON_STAGE2_TIMEOUT_VALUE, ADSP_BUS_DBG_TIMER_CON1);
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writel(0x0, ADSP_BUS_DBG_WP);
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writel(0x0, ADSP_BUS_DBG_WP_MASK);
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writel(0x00002037, ADSP_BUS_DBG_CON); /* timeout control */
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writel(STAGE_RUN, ADSP_BUS_MON_STATE);
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return 0;
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}
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bool is_adsp_bus_monitor_alert(void)
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{
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return readl(ADSP_BUS_MON_STATE) > STAGE_RUN;
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}
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static void adsp_bus_monitor_stage_info(void *addr)
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{
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int i = 0;
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struct bus_monitor_cblk cblk;
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memcpy_fromio(&cblk, addr, sizeof(struct bus_monitor_cblk));
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for (i = 0; i < 8; i++) {
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if (!cblk.r_tracks[i] && !cblk.w_tracks[i])
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continue;
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}
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}
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