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28 lines
738 B
28 lines
738 B
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Atheros AR71XX/AR724X/AR913X specific kernel entry setup |
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* |
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* Copyright (C) 2009 Gabor Juhos <[email protected]> |
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*/ |
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#ifndef __ASM_MACH_ATH79_KERNEL_ENTRY_H |
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#define __ASM_MACH_ATH79_KERNEL_ENTRY_H |
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/* |
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* Some bootloaders set the 'Kseg0 coherency algorithm' to |
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* 'Cacheable, noncoherent, write-through, no write allocate' |
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* and this cause performance issues. Let's go and change it to |
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* 'Cacheable, noncoherent, write-back, write allocate' |
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*/ |
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.macro kernel_entry_setup |
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mfc0 t0, CP0_CONFIG |
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li t1, ~CONF_CM_CMASK |
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and t0, t1 |
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ori t0, CONF_CM_CACHABLE_NONCOHERENT |
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mtc0 t0, CP0_CONFIG |
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nop |
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.endm |
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.macro smp_slave_setup |
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.endm |
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#endif /* __ASM_MACH_ATH79_KERNEL_ENTRY_H */
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