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| author | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2008-03-15 12:28:51 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2008-04-01 15:46:33 +0100 |
| commit | 82933342c3b157c93f4b09199bcde8f2e961dff6 (patch) | |
| tree | e6b83c578de0d2191a3775a28ea5ae16dd92b95f /arch | |
| parent | a05e623f63f7ce2d6b334eb3d7ecb449b907b429 (diff) | |
| download | linux-82933342c3b157c93f4b09199bcde8f2e961dff6.tar.gz linux-82933342c3b157c93f4b09199bcde8f2e961dff6.tar.bz2 linux-82933342c3b157c93f4b09199bcde8f2e961dff6.zip | |
[MIPS] Check for GCC r10k-cache-barrier support
Check whether gcc supports -mr10-cache-barrier=1 and issue a cleaner
error message if not. This option is needed to build working SGI IP28
kernels.
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/Makefile | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/mips/Makefile b/arch/mips/Makefile index 72097dacabd3..1c62381f5c23 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -482,10 +482,13 @@ endif # be 16kb aligned or the handling of the current variable will break. # Simplified: what IP22 does at 128MB+ in ksegN, IP28 does at 512MB+ in xkphys # -#core-$(CONFIG_SGI_IP28) += arch/mips/sgi-ip22/ arch/mips/arc/arc_con.o +ifdef CONFIG_SGI_IP28 + ifeq ($(call cc-option-yn,-mr10k-cache-barrier=1), n) + $(error gcc doesn't support needed option -mr10k-cache-barrier=1) + endif +endif core-$(CONFIG_SGI_IP28) += arch/mips/sgi-ip22/ cflags-$(CONFIG_SGI_IP28) += -mr10k-cache-barrier=1 -Iinclude/asm-mips/mach-ip28 -#cflags-$(CONFIG_SGI_IP28) += -Iinclude/asm-mips/mach-ip28 load-$(CONFIG_SGI_IP28) += 0xa800000020004000 # |