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75 lines
1.7 KiB
ArmAsm
75 lines
1.7 KiB
ArmAsm
/*
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* Copyright (c) 2014, NVIDIA Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#include <linux/linkage.h>
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#include <linux/init.h>
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#ifdef CONFIG_ARM64
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ENTRY(tlk_irq_handler)
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mov x0, #0x5
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movk x0, #0x3200, lsl #16 // TE_SMC_NS_IRQ_DONE
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smc #0
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ret
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ENDPROC(tlk_irq_handler)
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/* uint32_t tlk_generic_smc(uint32_t arg0, uint32_t arg1, uint32_t arg2) */
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ENTRY(_tlk_generic_smc)
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smc #0
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ret
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ENDPROC(_tlk_generic_smc)
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/* allows MAX_EXT_SMC_ARGS (r0-r11) to be passed in registers */
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/* uint32_t tlk_extended_smc(uint32_t *regs) */
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ENTRY(_tlk_extended_smc)
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/*
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* Allows MAX_EXT_SMC_ARGS (r0-r11) to be passed in registers
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* (for aarch64, these are scratch, so no need to save them)
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*/
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mov x12, x0
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ldp x0, x1, [x12], #16
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ldp x2, x3, [x12], #16
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ldp x4, x5, [x12], #16
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ldp x6, x7, [x12], #16
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ldp x8, x9, [x12], #16
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ldp x10, x11, [x12], #16
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smc #0
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ret
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ENDPROC(_tlk_extended_smc)
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#else
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ENTRY(tlk_irq_handler)
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movw r0, #0x5
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movt r0, #0x3200 @ TE_SMC_NS_IRQ_DONE
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mov r1, #0
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mov r2, #0
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smc #0
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ENDPROC(tlk_irq_handler)
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ENTRY(_tlk_generic_smc)
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smc #0
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mov pc, lr
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ENDPROC(_tlk_generic_smc)
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ENTRY(_tlk_extended_smc)
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stmfd sp!, {r4-r12} @ save reg state
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mov r12, r0 @ reg ptr to r12
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ldmia r12, {r0-r11} @ load arg regs
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smc #0
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ldmfd sp!, {r4-r12} @ restore saved regs
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ENDPROC(_tlk_extended_smc)
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#endif
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