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microblaze: entry.S: Macro optimization

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We are not working with values from MSR that's why
we can discard it and use r11 for different purpose without
saving/restoring.

Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Michal Simek 2010-06-22 17:52:47 +02:00
parent c318d483b3
commit 66f7de8634
1 changed files with 12 additions and 12 deletions
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24
arch/microblaze/kernel/entry.S
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@ -48,56 +48,56 @@
*/ */
#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR #if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
.macro clear_bip .macro clear_bip
msrclr r11, MSR_BIP msrclr r0, MSR_BIP
nop nop
.endm .endm
.macro set_bip .macro set_bip
msrset r11, MSR_BIP msrset r0, MSR_BIP
nop nop
.endm .endm
.macro clear_eip .macro clear_eip
msrclr r11, MSR_EIP msrclr r0, MSR_EIP
nop nop
.endm .endm
.macro set_ee .macro set_ee
msrset r11, MSR_EE msrset r0, MSR_EE
nop nop
.endm .endm
.macro disable_irq .macro disable_irq
msrclr r11, MSR_IE msrclr r0, MSR_IE
nop nop
.endm .endm
.macro enable_irq .macro enable_irq
msrset r11, MSR_IE msrset r0, MSR_IE
nop nop
.endm .endm
.macro set_ums .macro set_ums
msrset r11, MSR_UMS msrset r0, MSR_UMS
nop nop
msrclr r11, MSR_VMS msrclr r0, MSR_VMS
nop nop
.endm .endm
.macro set_vms .macro set_vms
msrclr r11, MSR_UMS msrclr r0, MSR_UMS
nop nop
msrset r11, MSR_VMS msrset r0, MSR_VMS
nop nop
.endm .endm
.macro clear_ums .macro clear_ums
msrclr r11, MSR_UMS msrclr r0, MSR_UMS
nop nop
.endm .endm
.macro clear_vms_ums .macro clear_vms_ums
msrclr r11, MSR_VMS | MSR_UMS msrclr r0, MSR_VMS | MSR_UMS
nop nop
.endm .endm
#else #else