X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=arch%2Falpha%2FMakefile;h=4e1a8e2c45410746b0b8176c6356068f433a8be2;hb=bda0c0afa7a694bb1459fd023515aca681e4d79a;hp=1b704ee54bf3ad5210aab22c6f36d372aadc19e6;hpb=3874b98c655b9490bea1cf9c7697d5dc5338376f;p=linux-2.6-omap-h63xx.git diff --git a/arch/alpha/Makefile b/arch/alpha/Makefile index 1b704ee54bf..4e1a8e2c454 100644 --- a/arch/alpha/Makefile +++ b/arch/alpha/Makefile @@ -12,79 +12,28 @@ NM := $(NM) -B LDFLAGS_vmlinux := -static -N #-relax CHECKFLAGS += -D__alpha__ -m64 -cflags-y := -pipe -mno-fp-regs -ffixed-8 +cflags-y := -pipe -mno-fp-regs -ffixed-8 -msmall-data -# Determine if we can use the BWX instructions with GAS. -old_gas := $(shell if $(AS) --version 2>&1 | grep 'version 2.7' > /dev/null; then echo y; else echo n; fi) +cpuflags-$(CONFIG_ALPHA_EV4) := -mcpu=ev4 +cpuflags-$(CONFIG_ALPHA_EV5) := -mcpu=ev5 +cpuflags-$(CONFIG_ALPHA_EV56) := -mcpu=ev56 +cpuflags-$(CONFIG_ALPHA_POLARIS) := -mcpu=pca56 +cpuflags-$(CONFIG_ALPHA_SX164) := -mcpu=pca56 +cpuflags-$(CONFIG_ALPHA_EV6) := -mcpu=ev6 +cpuflags-$(CONFIG_ALPHA_EV67) := -mcpu=ev67 +# If GENERIC, make sure to turn off any instruction set extensions that +# the host compiler might have on by default. Given that EV4 and EV5 +# have the same instruction set, prefer EV5 because an EV5 schedule is +# more likely to keep an EV4 processor busy than vice-versa. +cpuflags-$(CONFIG_ALPHA_GENERIC) := -mcpu=ev5 -ifeq ($(old_gas),y) -$(error The assembler '$(AS)' does not support the BWX instruction) -endif - -# Determine if GCC understands the -mcpu= option. -have_mcpu := $(call cc-option-yn, -mcpu=ev5) -have_mcpu_pca56 := $(call cc-option-yn, -mcpu=pca56) -have_mcpu_ev6 := $(call cc-option-yn, -mcpu=ev6) -have_mcpu_ev67 := $(call cc-option-yn, -mcpu=ev67) -have_msmall_data := $(call cc-option-yn, -msmall-data) - -cflags-$(have_msmall_data) += -msmall-data - -# Turn on the proper cpu optimizations. -ifeq ($(have_mcpu),y) - mcpu_done := n - # If GENERIC, make sure to turn off any instruction set extensions that - # the host compiler might have on by default. Given that EV4 and EV5 - # have the same instruction set, prefer EV5 because an EV5 schedule is - # more likely to keep an EV4 processor busy than vice-versa. - ifeq ($(CONFIG_ALPHA_GENERIC),y) - mcpu := ev5 - mcpu_done := y - endif - ifeq ($(mcpu_done)$(CONFIG_ALPHA_SX164)$(have_mcpu_pca56),nyy) - mcpu := pca56 - mcpu_done := y - endif - ifeq ($(mcpu_done)$(CONFIG_ALPHA_POLARIS)$(have_mcpu_pca56),nyy) - mcpu := pca56 - mcpu_done := y - endif - ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV4),ny) - mcpu := ev4 - mcpu_done := y - endif - ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV56),ny) - mcpu := ev56 - mcpu_done := y - endif - ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV5),ny) - mcpu := ev5 - mcpu_done := y - endif - ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV67)$(have_mcpu_ev67),nyy) - mcpu := ev67 - mcpu_done := y - endif - ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV6),ny) - ifeq ($(have_mcpu_ev6),y) - mcpu := ev6 - else - ifeq ($(have_mcpu_pca56),y) - mcpu := pca56 - else - mcpu=ev56 - endif - endif - mcpu_done := y - endif - cflags-$(mcpu_done) += -mcpu=$(mcpu) -endif +cflags-y += $(cpuflags-y) # For TSUNAMI, we must have the assembler not emulate our instructions. # The same is true for IRONGATE, POLARIS, PYXIS. # BWX is most important, but we don't really want any emulation ever. -CFLAGS += $(cflags-y) -Wa,-mev6 +KBUILD_CFLAGS += $(cflags-y) -Wa,-mev6 head-y := arch/alpha/kernel/head.o