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authorThomas Bogendoerfer <tsbogend@alpha.franken.de>2008-03-15 07:28:51 -0400
committerRalf Baechle <ralf@linux-mips.org>2008-04-01 10:46:33 -0400
commit82933342c3b157c93f4b09199bcde8f2e961dff6 (patch)
treee6b83c578de0d2191a3775a28ea5ae16dd92b95f /arch
parenta05e623f63f7ce2d6b334eb3d7ecb449b907b429 (diff)
[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/Makefile7
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
482# be 16kb aligned or the handling of the current variable will break. 482# be 16kb aligned or the handling of the current variable will break.
483# Simplified: what IP22 does at 128MB+ in ksegN, IP28 does at 512MB+ in xkphys 483# Simplified: what IP22 does at 128MB+ in ksegN, IP28 does at 512MB+ in xkphys
484# 484#
485#core-$(CONFIG_SGI_IP28) += arch/mips/sgi-ip22/ arch/mips/arc/arc_con.o 485ifdef CONFIG_SGI_IP28
486 ifeq ($(call cc-option-yn,-mr10k-cache-barrier=1), n)
487 $(error gcc doesn't support needed option -mr10k-cache-barrier=1)
488 endif
489endif
486core-$(CONFIG_SGI_IP28) += arch/mips/sgi-ip22/ 490core-$(CONFIG_SGI_IP28) += arch/mips/sgi-ip22/
487cflags-$(CONFIG_SGI_IP28) += -mr10k-cache-barrier=1 -Iinclude/asm-mips/mach-ip28 491cflags-$(CONFIG_SGI_IP28) += -mr10k-cache-barrier=1 -Iinclude/asm-mips/mach-ip28
488#cflags-$(CONFIG_SGI_IP28) += -Iinclude/asm-mips/mach-ip28
489load-$(CONFIG_SGI_IP28) += 0xa800000020004000 492load-$(CONFIG_SGI_IP28) += 0xa800000020004000
490 493
491# 494#