1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
| /* 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 */
|
|
