5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
29 lines
738 B
C
29 lines
738 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Atheros AR71XX/AR724X/AR913X specific kernel entry setup
|
|
*
|
|
* Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
|
|
*/
|
|
#ifndef __ASM_MACH_ATH79_KERNEL_ENTRY_H
|
|
#define __ASM_MACH_ATH79_KERNEL_ENTRY_H
|
|
|
|
/*
|
|
* Some bootloaders set the 'Kseg0 coherency algorithm' to
|
|
* 'Cacheable, noncoherent, write-through, no write allocate'
|
|
* and this cause performance issues. Let's go and change it to
|
|
* 'Cacheable, noncoherent, write-back, write allocate'
|
|
*/
|
|
.macro kernel_entry_setup
|
|
mfc0 t0, CP0_CONFIG
|
|
li t1, ~CONF_CM_CMASK
|
|
and t0, t1
|
|
ori t0, CONF_CM_CACHABLE_NONCOHERENT
|
|
mtc0 t0, CP0_CONFIG
|
|
nop
|
|
.endm
|
|
|
|
.macro smp_slave_setup
|
|
.endm
|
|
|
|
#endif /* __ASM_MACH_ATH79_KERNEL_ENTRY_H */
|