mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-22 21:47:04 +07:00
c456cfc2e5
Based on 1 normalized pattern(s): released under the terms of the gnu gpl v2 0 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 9 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528171439.076212120@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* arch/sh/mm/cache-j2.c
|
|
*
|
|
* Copyright (C) 2015-2016 Smart Energy Instruments, Inc.
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/cpumask.h>
|
|
|
|
#include <asm/cache.h>
|
|
#include <asm/addrspace.h>
|
|
#include <asm/processor.h>
|
|
#include <asm/cacheflush.h>
|
|
#include <asm/io.h>
|
|
|
|
#define ICACHE_ENABLE 0x1
|
|
#define DCACHE_ENABLE 0x2
|
|
#define CACHE_ENABLE (ICACHE_ENABLE | DCACHE_ENABLE)
|
|
#define ICACHE_FLUSH 0x100
|
|
#define DCACHE_FLUSH 0x200
|
|
#define CACHE_FLUSH (ICACHE_FLUSH | DCACHE_FLUSH)
|
|
|
|
u32 __iomem *j2_ccr_base;
|
|
|
|
static void j2_flush_icache(void *args)
|
|
{
|
|
unsigned cpu;
|
|
for_each_possible_cpu(cpu)
|
|
__raw_writel(CACHE_ENABLE | ICACHE_FLUSH, j2_ccr_base + cpu);
|
|
}
|
|
|
|
static void j2_flush_dcache(void *args)
|
|
{
|
|
unsigned cpu;
|
|
for_each_possible_cpu(cpu)
|
|
__raw_writel(CACHE_ENABLE | DCACHE_FLUSH, j2_ccr_base + cpu);
|
|
}
|
|
|
|
static void j2_flush_both(void *args)
|
|
{
|
|
unsigned cpu;
|
|
for_each_possible_cpu(cpu)
|
|
__raw_writel(CACHE_ENABLE | CACHE_FLUSH, j2_ccr_base + cpu);
|
|
}
|
|
|
|
void __init j2_cache_init(void)
|
|
{
|
|
if (!j2_ccr_base)
|
|
return;
|
|
|
|
local_flush_cache_all = j2_flush_both;
|
|
local_flush_cache_mm = j2_flush_both;
|
|
local_flush_cache_dup_mm = j2_flush_both;
|
|
local_flush_cache_page = j2_flush_both;
|
|
local_flush_cache_range = j2_flush_both;
|
|
local_flush_dcache_page = j2_flush_dcache;
|
|
local_flush_icache_range = j2_flush_icache;
|
|
local_flush_icache_page = j2_flush_icache;
|
|
local_flush_cache_sigtramp = j2_flush_icache;
|
|
|
|
pr_info("Initial J2 CCR is %.8x\n", __raw_readl(j2_ccr_base));
|
|
}
|