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author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
commit | 57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch) | |
tree | 5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/mips/include/asm/mach-ath79/kernel-entry-init.h |
Initial import
Diffstat (limited to 'arch/mips/include/asm/mach-ath79/kernel-entry-init.h')
-rw-r--r-- | arch/mips/include/asm/mach-ath79/kernel-entry-init.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mach-ath79/kernel-entry-init.h b/arch/mips/include/asm/mach-ath79/kernel-entry-init.h new file mode 100644 index 000000000..d8d046bcc --- /dev/null +++ b/arch/mips/include/asm/mach-ath79/kernel-entry-init.h @@ -0,0 +1,32 @@ +/* + * Atheros AR71XX/AR724X/AR913X specific kernel entry setup + * + * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + */ +#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 */ |