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x86, apic: Replace trampoline physical addresses with defaults

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The trampoline_phys_{high,low} members of struct apic are always
initialized to DEFAULT_TRAMPOLINE_PHYS_HIGH and TRAMPOLINE_PHYS_LOW,
respectively.  Hardwire the constants and remove the unneeded members.

Signed-off-by: David Rientjes <rientjes@google.com>
Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1407302348330.17503@chino.kir.corp.google.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
David Rientjes 2014-07-30 23:53:27 -07:00 • committed by H. Peter Anvin
commit 6ab1b27c84
10 changed files with 8 additions and 33 deletions
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10
arch/x86/include/asm/smpboot_hooks.h
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@ -17,11 +17,11 @@ static inline void smpboot_setup_warm_reset_vector(unsigned long start_eip)
spin_unlock_irqrestore(&rtc_lock, flags);
local_flush_tlb();
pr_debug("1.\n");
*((volatile unsigned short *)phys_to_virt(apic->trampoline_phys_high)) =
start_eip >> 4;
*((volatile unsigned short *)phys_to_virt(TRAMPOLINE_PHYS_HIGH)) =
start_eip >> 4;
pr_debug("2.\n");
*((volatile unsigned short *)phys_to_virt(apic->trampoline_phys_low)) =
start_eip & 0xf;
*((volatile unsigned short *)phys_to_virt(TRAMPOLINE_PHYS_LOW)) =
start_eip & 0xf;
pr_debug("3.\n");
}
@ -42,7 +42,7 @@ static inline void smpboot_restore_warm_reset_vector(void)
CMOS_WRITE(0, 0xf);
spin_unlock_irqrestore(&rtc_lock, flags);
*((volatile u32 *)phys_to_virt(apic->trampoline_phys_low)) = 0;
*((volatile u32 *)phys_to_virt(TRAMPOLINE_PHYS_LOW)) = 0;
}
static inline void __init smpboot_setup_io_apic(void)