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2874c5fd28
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 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
67 lines
1.2 KiB
ArmAsm
67 lines
1.2 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (c) 2016 IBM Corporation.
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*/
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#include "ppc_asm.h"
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#include "../include/asm/opal-api.h"
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.text
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.globl opal_kentry
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opal_kentry:
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/* r3 is the fdt ptr */
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mtctr r4
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li r4, 0
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li r5, 0
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li r6, 0
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li r7, 0
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ld r11,opal@got(r2)
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ld r8,0(r11)
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ld r9,8(r11)
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bctr
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#define OPAL_CALL(name, token) \
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.globl name; \
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name: \
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li r0, token; \
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b opal_call;
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opal_call:
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mflr r11
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std r11,16(r1)
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mfcr r12
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stw r12,8(r1)
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mr r13,r2
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/* Set opal return address */
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ld r11,opal_return@got(r2)
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mtlr r11
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mfmsr r12
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/* switch to BE when we enter OPAL */
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li r11,MSR_LE
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andc r12,r12,r11
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mtspr SPRN_HSRR1,r12
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/* load the opal call entry point and base */
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ld r11,opal@got(r2)
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ld r12,8(r11)
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ld r2,0(r11)
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mtspr SPRN_HSRR0,r12
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hrfid
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opal_return:
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FIXUP_ENDIAN
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mr r2,r13;
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lwz r11,8(r1);
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ld r12,16(r1)
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mtcr r11;
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mtlr r12
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blr
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OPAL_CALL(opal_console_write, OPAL_CONSOLE_WRITE);
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OPAL_CALL(opal_console_read, OPAL_CONSOLE_READ);
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OPAL_CALL(opal_console_write_buffer_space, OPAL_CONSOLE_WRITE_BUFFER_SPACE);
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OPAL_CALL(opal_poll_events, OPAL_POLL_EVENTS);
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OPAL_CALL(opal_console_flush, OPAL_CONSOLE_FLUSH);
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