threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
60 lines
1.6 KiB
ArmAsm
60 lines
1.6 KiB
ArmAsm
/*
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* Copyright (C) 2013 Google, Inc.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <asm/asm-offsets.h>
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#include <asm/ptrace.h>
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#include <linux/linkage.h>
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#include <linux/trusty/smcall.h>
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.macro push reg1,reg2,remregs:vararg
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.ifnb \remregs
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push \remregs
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.endif
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stp \reg1, \reg2, [sp, #-16]!
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.endm
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.macro pop reg1,reg2,remregs:vararg
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ldp \reg1, \reg2, [sp], #16
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.ifnb \remregs
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pop \remregs
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.endif
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.endm
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ENTRY(trusty_fiq_glue_arm64)
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sub sp, sp, #S_FRAME_SIZE - S_LR
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push x0, x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, \
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x14, x15, x16, x17, x18, x19, x20, x21, x22, x23, x24, x25, \
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x26, x27, x28, x29
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ldr x0, =SMC_FC64_GET_FIQ_REGS
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smc #0
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stp x0, x1, [sp, #S_PC] /* original pc, cpsr */
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tst x1, PSR_MODE_MASK
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csel x2, x2, x3, eq /* sp el0, sp el1 */
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stp x30, x2, [sp, #S_LR] /* lr, original sp */
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mov x0, sp
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mov x1, x3
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bl trusty_fiq_handler
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pop x0, x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, \
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x14, x15, x16, x17, x18, x19, x20, x21, x22, x23, x24, x25, \
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x26, x27, x28, x29
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ldr x30, [sp], #S_FRAME_SIZE - S_LR /* load LR and restore SP */
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ldr x0, =SMC_FC_FIQ_EXIT
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smc #0
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b . /* should not get here */
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ENTRY(trusty_fiq_cpu_resume)
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ldr x0, =SMC_FC_FIQ_RESUME
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smc #0
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ret
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