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Remove the SMP code from locore-v4. These will never use the SMP code as

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there is no multi-core hardware prior to ARMv6.

Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Andrew Turner 2015-01-20 11:32:48 +00:00
parent 195237551a
commit 79b52c387e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=277416
1 changed files with 0 additions and 92 deletions
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92
sys/arm/arm/locore-v4.S
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@ -218,9 +218,6 @@ Lunmapped:
bl build_pagetables
#endif
#if defined(SMP)
orr r0, r0, #2 /* Set TTB shared memory flag */
#endif
mcr p15, 0, r0, c2, c0, 0 /* Set TTB */
mcr p15, 0, r0, c8, c7, 0 /* Flush TLB */
@ -338,9 +335,6 @@ translate_va_to_pa:
build_pagetables:
/* Set the required page attributed */
ldr r4, =(L1_TYPE_S|L1_S_C|L1_S_AP(AP_KRW))
#if defined(SMP)
orr r4, #(L1_SHARED)
#endif
orr r1, r4
/* Move the virtual address to the correct bit location */
@ -394,92 +388,6 @@ pagetable:
.Lcpufuncs:
.word _C_LABEL(cpufuncs)
#if defined(SMP)
.Lmpvirt_done:
.word mpvirt_done
VA_TO_PA_POINTER(Lstartup_pagetable_secondary, temp_pagetable)
ASENTRY_NP(mpentry)
/* Make sure interrupts are disabled. */
mrs r7, cpsr
orr r7, r7, #(PSR_I | PSR_F)
msr cpsr_c, r7
/* Disable MMU. It should be disabled already, but make sure. */
mrc p15, 0, r2, c1, c0, 0
bic r2, r2, #(CPU_CONTROL_MMU_ENABLE | CPU_CONTROL_DC_ENABLE |\
CPU_CONTROL_WBUF_ENABLE)
bic r2, r2, #(CPU_CONTROL_IC_ENABLE)
bic r2, r2, #(CPU_CONTROL_BPRD_ENABLE)
mcr p15, 0, r2, c1, c0, 0
nop
nop
nop
CPWAIT(r0)
#if ARM_MMU_V6
bl armv6_idcache_inv_all /* Modifies r0 only */
#elif ARM_MMU_V7
bl armv7_idcache_inv_all /* Modifies r0-r3, ip */
#endif
/* Load the page table physical address */
adr r0, Lstartup_pagetable_secondary
bl translate_va_to_pa
/* Load the address the secondary page table */
ldr r0, [r0]
orr r0, r0, #2 /* Set TTB shared memory flag */
mcr p15, 0, r0, c2, c0, 0 /* Set TTB */
mcr p15, 0, r0, c8, c7, 0 /* Flush TLB */
mov r0, #0
mcr p15, 0, r0, c13, c0, 1 /* Set ASID to 0 */
/* Set the Domain Access register. Very important! */
mov r0, #((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT)
mcr p15, 0, r0, c3, c0, 0
/* Enable MMU */
mrc p15, 0, r0, c1, c0, 0
orr r0, r0, #CPU_CONTROL_V6_EXTPAGE
orr r0, r0, #CPU_CONTROL_AF_ENABLE
orr r0, r0, #(CPU_CONTROL_MMU_ENABLE | CPU_CONTROL_DC_ENABLE |\
CPU_CONTROL_WBUF_ENABLE)
orr r0, r0, #(CPU_CONTROL_IC_ENABLE)
orr r0, r0, #(CPU_CONTROL_BPRD_ENABLE)
mcr p15, 0, r0, c1, c0, 0
nop
nop
nop
CPWAIT(r0)
adr r1, .Lstart
ldmia r1, {r1, r2, sp} /* Set initial stack and */
mrc p15, 0, r0, c0, c0, 5
and r0, r0, #15
mov r1, #2048
mul r2, r1, r0
sub sp, sp, r2
str r1, [sp]
ldr pc, .Lmpvirt_done
mpvirt_done:
mov fp, #0 /* trace back starts here */
bl _C_LABEL(init_secondary) /* Off we go */
adr r0, .Lmpreturned
b _C_LABEL(panic)
/* NOTREACHED */
.Lmpreturned:
.asciz "init_secondary() returned"
.align 2
END(mpentry)
#endif
ENTRY_NP(cpu_halt)
mrs r2, cpsr
bic r2, r2, #(PSR_MODE)