de6cc6515a
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 675 mass ave cambridge ma 02139 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 77 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Armijn Hemel <armijn@tjaldur.nl> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.837555891@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
89 lines
2.0 KiB
ArmAsm
89 lines
2.0 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* crt0_s.S: Entry function for SPU-side context save.
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*
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* Copyright (C) 2005 IBM
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*
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* Entry function for SPU-side of the context save sequence.
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* Saves all 128 GPRs, sets up an initial stack frame, then
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* branches to 'main'.
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*/
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#include <asm/spu_csa.h>
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.data
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.align 7
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.globl regs_spill
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regs_spill:
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.space SIZEOF_SPU_SPILL_REGS, 0x0
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.text
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.global _start
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_start:
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/* SPU Context Save Step 1: Save the first 16 GPRs. */
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stqa $0, regs_spill + 0
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stqa $1, regs_spill + 16
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stqa $2, regs_spill + 32
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stqa $3, regs_spill + 48
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stqa $4, regs_spill + 64
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stqa $5, regs_spill + 80
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stqa $6, regs_spill + 96
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stqa $7, regs_spill + 112
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stqa $8, regs_spill + 128
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stqa $9, regs_spill + 144
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stqa $10, regs_spill + 160
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stqa $11, regs_spill + 176
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stqa $12, regs_spill + 192
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stqa $13, regs_spill + 208
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stqa $14, regs_spill + 224
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stqa $15, regs_spill + 240
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/* SPU Context Save, Step 8: Save the remaining 112 GPRs. */
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ila $3, regs_spill + 256
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save_regs:
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lqr $4, save_reg_insts
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save_reg_loop:
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ai $4, $4, 4
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.balignl 16, 0x40200000
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save_reg_insts: /* must be quad-word aligned. */
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stqd $16, 0($3)
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stqd $17, 16($3)
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stqd $18, 32($3)
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stqd $19, 48($3)
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andi $5, $4, 0x7F
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stqr $4, save_reg_insts
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ai $3, $3, 64
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brnz $5, save_reg_loop
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/* Initialize the stack pointer to point to 16368
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* (16kb-16). The back chain pointer is initialized
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* to NULL.
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*/
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il $0, 0
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il $SP, 16368
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stqd $0, 0($SP)
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/* Allocate a minimum stack frame for the called main.
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* This is needed so that main has a place to save the
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* link register when it calls another function.
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*/
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stqd $SP, -160($SP)
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ai $SP, $SP, -160
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/* Call the program's main function. */
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brsl $0, main
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/* In this case main should not return; if it does
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* there has been an error in the sequence. Execute
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* stop-and-signal with code=0.
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*/
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.global exit
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.global _exit
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exit:
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_exit:
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stop 0x0
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/* Pad the size of this crt0.o to be multiple of 16 bytes. */
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.balignl 16, 0x0
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