linux/arch/alpha/boot/head.S

/*
 * arch/alpha/boot/head.S
 *
 * initial bootloader stuff..
 */

#include <asm/pal.h>

	.set noreorder
	.globl	__start
	.ent	__start
__start:
	br	$29,2f
2:	ldgp	$29,0($29)
	jsr	$26,start_kernel
	call_pal PAL_halt
	.end __start

	.align 5
	.globl	wrent
	.ent	wrent
wrent:
	.prologue 0
	call_pal PAL_wrent
	ret ($26)
	.end wrent

	.align 5
	.globl	wrkgp
	.ent	wrkgp
wrkgp:
	.prologue 0
	call_pal PAL_wrkgp
	ret ($26)
	.end wrkgp

	.align 5
	.globl	switch_to_osf_pal
	.ent	switch_to_osf_pal
switch_to_osf_pal:
	subq	$30,128,$30
	.frame	$30,128,$26
	stq	$26,0($30)
	stq	$1,8($30)
	stq	$2,16($30)
	stq	$3,24($30)
	stq	$4,32($30)
	stq	$5,40($30)
	stq	$6,48($30)
	stq	$7,56($30)
	stq	$8,64($30)
	stq	$9,72($30)
	stq	$10,80($30)
	stq	$11,88($30)
	stq	$12,96($30)
	stq	$13,104($30)
	stq	$14,112($30)
	stq	$15,120($30)
	.prologue 0

	stq	$30,0($17)	/* save KSP in PCB */

	bis	$30,$30,$20	/* a4 = KSP */
	br	$17,1f

	ldq	$26,0($30)
	ldq	$1,8($30)
	ldq	$2,16($30)
	ldq	$3,24($30)
	ldq	$4,32($30)
	ldq	$5,40($30)
	ldq	$6,48($30)
	ldq	$7,56($30)
	ldq	$8,64($30)
	ldq	$9,72($30)
	ldq	$10,80($30)
	ldq	$11,88($30)
	ldq	$12,96($30)
	ldq	$13,104($30)
	ldq	$14,112($30)
	ldq	$15,120($30)
	addq	$30,128,$30
	ret ($26)
1:	call_pal PAL_swppal
	.end	switch_to_osf_pal

	.align 3
	.globl	tbi
	.ent	tbi
tbi:
	.prologue 0
	call_pal PAL_tbi
	ret	($26)
	.end tbi

	.align 3
	.globl	halt
	.ent	halt
halt:
	.prologue 0
	call_pal PAL_halt
	.end halt

/* $16 - new stack page */
	.align 3
	.globl	move_stack
	.ent	move_stack
move_stack:
	.prologue 0
	lda	$0, 0x1fff($31)
	and	$0, $30, $1			/* Stack offset */
	or	$1, $16, $16			/* New stack pointer */
	mov	$30, $1
	mov	$16, $2
1:	ldq	$3, 0($1)			/* Move the stack */
	addq	$1, 8, $1
	stq	$3, 0($2)
	and	$0, $1, $4
	addq	$2, 8, $2
	bne	$4, 1b
	mov	$16, $30
	ret	($26)
	.end move_stack
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! 2005-04-16 15:20:36 -07:00			`/*`
			`* arch/alpha/boot/head.S`
			`*`
			`* initial bootloader stuff..`
			`*/`

alpha: boot: fix build breakage introduced by system.h disintegration Commit ec2212088c42 ("Disintegrate asm/system.h for Alpha") removed the system.h include from boot/head.S, which puts the PAL_* asm constants out of scope. Include <asm/pal.h> so we can get building again. Signed-off-by: Will Deacon <will.deacon@arm.com> Cc: David Rusling <david.rusling@linaro.org> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 2013-03-08 12:43:37 -08:00			`#include <asm/pal.h>`
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! 2005-04-16 15:20:36 -07:00
			`.set noreorder`
			`.globl __start`
			`.ent __start`
			`__start:`
			`br $29,2f`
			`2: ldgp $29,0($29)`
			`jsr $26,start_kernel`
			`call_pal PAL_halt`
			`.end __start`

			`.align 5`
			`.globl wrent`
			`.ent wrent`
			`wrent:`
			`.prologue 0`
			`call_pal PAL_wrent`
			`ret ($26)`
			`.end wrent`

			`.align 5`
			`.globl wrkgp`
			`.ent wrkgp`
			`wrkgp:`
			`.prologue 0`
			`call_pal PAL_wrkgp`
			`ret ($26)`
			`.end wrkgp`

			`.align 5`
			`.globl switch_to_osf_pal`
			`.ent switch_to_osf_pal`
			`switch_to_osf_pal:`
			`subq $30,128,$30`
			`.frame $30,128,$26`
			`stq $26,0($30)`
			`stq $1,8($30)`
			`stq $2,16($30)`
			`stq $3,24($30)`
			`stq $4,32($30)`
			`stq $5,40($30)`
			`stq $6,48($30)`
			`stq $7,56($30)`
			`stq $8,64($30)`
			`stq $9,72($30)`
			`stq $10,80($30)`
			`stq $11,88($30)`
			`stq $12,96($30)`
			`stq $13,104($30)`
			`stq $14,112($30)`
			`stq $15,120($30)`
			`.prologue 0`

			`stq $30,0($17) /* save KSP in PCB */`

			`bis $30,$30,$20 /* a4 = KSP */`
			`br $17,1f`

			`ldq $26,0($30)`
			`ldq $1,8($30)`
			`ldq $2,16($30)`
			`ldq $3,24($30)`
			`ldq $4,32($30)`
			`ldq $5,40($30)`
			`ldq $6,48($30)`
			`ldq $7,56($30)`
			`ldq $8,64($30)`
			`ldq $9,72($30)`
			`ldq $10,80($30)`
			`ldq $11,88($30)`
			`ldq $12,96($30)`
			`ldq $13,104($30)`
			`ldq $14,112($30)`
			`ldq $15,120($30)`
			`addq $30,128,$30`
			`ret ($26)`
			`1: call_pal PAL_swppal`
			`.end switch_to_osf_pal`

			`.align 3`
			`.globl tbi`
			`.ent tbi`
			`tbi:`
			`.prologue 0`
			`call_pal PAL_tbi`
			`ret ($26)`
			`.end tbi`

			`.align 3`
			`.globl halt`
			`.ent halt`
			`halt:`
			`.prologue 0`
			`call_pal PAL_halt`
			`.end halt`

			`/* $16 - new stack page */`
			`.align 3`
			`.globl move_stack`
			`.ent move_stack`
			`move_stack:`
			`.prologue 0`
			`lda $0, 0x1fff($31)`
			`and $0, $30, $1 /* Stack offset */`
			`or $1, $16, $16 /* New stack pointer */`
			`mov $30, $1`
			`mov $16, $2`
			`1: ldq $3, 0($1) /* Move the stack */`
			`addq $1, 8, $1`
			`stq $3, 0($2)`
			`and $0, $1, $4`
			`addq $2, 8, $2`
			`bne $4, 1b`
			`mov $16, $30`
			`ret ($26)`
			`.end move_stack`