diff options
| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
| commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
| tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-mips/mach-ip32/cpu-feature-overrides.h | |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-mips/mach-ip32/cpu-feature-overrides.h')
| -rw-r--r-- | include/asm-mips/mach-ip32/cpu-feature-overrides.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/include/asm-mips/mach-ip32/cpu-feature-overrides.h b/include/asm-mips/mach-ip32/cpu-feature-overrides.h new file mode 100644 index 00000000000..b932237f219 --- /dev/null +++ b/include/asm-mips/mach-ip32/cpu-feature-overrides.h @@ -0,0 +1,41 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2005 Ilya A. Volynets-Evenbakh + * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org) + */ +#ifndef __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H +#define __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H + +#include <linux/config.h> + +/* + * R5000 has an interesting "restriction": ll(d)/sc(d) + * instructions to XKPHYS region simply do uncached bus + * requests. This breaks all the atomic bitops functions. + * so, for 64bit IP32 kernel we just don't use ll/sc. + * This does not affect luserland. + */ +#if defined(CONFIG_CPU_R5000) && defined(CONFIG_MIPS64) +#define cpu_has_llsc 0 +#else +#define cpu_has_llsc 1 +#endif + +/* Settings which are common for all ip32 CPUs */ +#define cpu_has_tlb 1 +#define cpu_has_4kex 1 +#define cpu_has_fpu 1 +#define cpu_has_32fpr 1 +#define cpu_has_counter 1 +#define cpu_has_mips16 0 +#define cpu_has_vce 0 +#define cpu_has_cache_cdex_s 0 +#define cpu_has_mcheck 0 +#define cpu_has_ejtag 0 +#define cpu_has_vtag_icache 0 +#define cpu_has_ic_fills_f_dc 0 + +#endif /* __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H */ |