mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-11-16 01:49:32 +00:00
101 lines
6.1 KiB
C
101 lines
6.1 KiB
C
/*
|
|
* Copyright (c) Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#pragma once
|
|
#include <mesosphere/arch/arm64/kern_assembly_offsets.h>
|
|
|
|
#define ENABLE_FPU(tmp) \
|
|
mrs tmp, cpacr_el1; \
|
|
orr tmp, tmp, #0x300000; \
|
|
msr cpacr_el1, tmp; \
|
|
isb;
|
|
|
|
#define GET_THREAD_CONTEXT_AND_RESTORE_FPCR_FPSR(ctx, xtmp1, xtmp2, wtmp1, wtmp2) \
|
|
add ctx, sp, #(EXCEPTION_CONTEXT_SIZE + THREAD_STACK_PARAMETERS_THREAD_CONTEXT); \
|
|
ldp wtmp1, wtmp2, [ctx, #(THREAD_CONTEXT_FPCR_FPSR)]; \
|
|
msr fpcr, xtmp1; \
|
|
msr fpsr, xtmp2;
|
|
|
|
#define RESTORE_FPU64_CALLEE_SAVE_REGISTERS(ctx) \
|
|
ldp q8, q9, [ctx, #(THREAD_CONTEXT_FPU64_Q8_Q9)]; \
|
|
ldp q10, q11, [ctx, #(THREAD_CONTEXT_FPU64_Q10_Q11)]; \
|
|
ldp q12, q13, [ctx, #(THREAD_CONTEXT_FPU64_Q12_Q13)]; \
|
|
ldp q14, q15, [ctx, #(THREAD_CONTEXT_FPU64_Q14_Q15)];
|
|
|
|
#define RESTORE_FPU64_CALLER_SAVE_REGISTERS(tmp) \
|
|
ldr tmp, [sp, #(EXCEPTION_CONTEXT_SIZE + THREAD_STACK_PARAMETERS_CALLER_SAVE_FPU_REGISTERS)]; \
|
|
ldp q0, q1, [tmp, #(THREAD_FPU64_CONTEXT_Q0_Q1)]; \
|
|
ldp q2, q3, [tmp, #(THREAD_FPU64_CONTEXT_Q2_Q3)]; \
|
|
ldp q4, q5, [tmp, #(THREAD_FPU64_CONTEXT_Q4_Q5)]; \
|
|
ldp q6, q7, [tmp, #(THREAD_FPU64_CONTEXT_Q6_Q7)]; \
|
|
ldp q16, q17, [tmp, #(THREAD_FPU64_CONTEXT_Q16_Q17)]; \
|
|
ldp q18, q19, [tmp, #(THREAD_FPU64_CONTEXT_Q18_Q19)]; \
|
|
ldp q20, q21, [tmp, #(THREAD_FPU64_CONTEXT_Q20_Q21)]; \
|
|
ldp q22, q23, [tmp, #(THREAD_FPU64_CONTEXT_Q22_Q23)]; \
|
|
ldp q24, q25, [tmp, #(THREAD_FPU64_CONTEXT_Q24_Q25)]; \
|
|
ldp q26, q27, [tmp, #(THREAD_FPU64_CONTEXT_Q26_Q27)]; \
|
|
ldp q28, q29, [tmp, #(THREAD_FPU64_CONTEXT_Q28_Q29)]; \
|
|
ldp q30, q31, [tmp, #(THREAD_FPU64_CONTEXT_Q30_Q31)];
|
|
|
|
#define RESTORE_FPU64_ALL_REGISTERS(ctx, tmp) \
|
|
RESTORE_FPU64_CALLEE_SAVE_REGISTERS(ctx) \
|
|
RESTORE_FPU64_CALLER_SAVE_REGISTERS(tmp)
|
|
|
|
#define RESTORE_FPU32_CALLEE_SAVE_REGISTERS(ctx) \
|
|
ldp q4, q5, [ctx, #(THREAD_CONTEXT_FPU32_Q4_Q5)]; \
|
|
ldp q6, q7, [ctx, #(THREAD_CONTEXT_FPU32_Q6_Q7)];
|
|
|
|
#define RESTORE_FPU32_CALLER_SAVE_REGISTERS(tmp) \
|
|
ldr tmp, [sp, #(EXCEPTION_CONTEXT_SIZE + THREAD_STACK_PARAMETERS_CALLER_SAVE_FPU_REGISTERS)]; \
|
|
ldp q0, q1, [tmp, #(THREAD_FPU32_CONTEXT_Q0_Q1)]; \
|
|
ldp q2, q3, [tmp, #(THREAD_FPU32_CONTEXT_Q2_Q3)]; \
|
|
ldp q8, q9, [tmp, #(THREAD_FPU32_CONTEXT_Q8_Q9)]; \
|
|
ldp q10, q11, [tmp, #(THREAD_FPU32_CONTEXT_Q10_Q11)]; \
|
|
ldp q12, q13, [tmp, #(THREAD_FPU32_CONTEXT_Q12_Q13)]; \
|
|
ldp q14, q15, [tmp, #(THREAD_FPU32_CONTEXT_Q14_Q15)];
|
|
|
|
#define RESTORE_FPU32_ALL_REGISTERS(ctx, tmp) \
|
|
RESTORE_FPU32_CALLEE_SAVE_REGISTERS(ctx) \
|
|
RESTORE_FPU32_CALLER_SAVE_REGISTERS(tmp)
|
|
|
|
#define ENABLE_AND_RESTORE_FPU(ctx, xtmp1, xtmp2, wtmp1, wtmp2, label_32, label_done) \
|
|
ENABLE_FPU(xtmp1) \
|
|
GET_THREAD_CONTEXT_AND_RESTORE_FPCR_FPSR(ctx, xtmp1, xtmp2, wtmp1, wtmp2) \
|
|
\
|
|
ldrb wtmp1, [sp, #(EXCEPTION_CONTEXT_SIZE + THREAD_STACK_PARAMETERS_EXCEPTION_FLAGS)]; \
|
|
tbz wtmp1, #(THREAD_EXCEPTION_FLAG_BIT_INDEX_IS_FPU_64_BIT), label_32##f; \
|
|
\
|
|
RESTORE_FPU64_ALL_REGISTERS(ctx, xtmp1) \
|
|
\
|
|
b label_done##f; \
|
|
\
|
|
label_32: \
|
|
RESTORE_FPU32_ALL_REGISTERS(ctx, xtmp1) \
|
|
label_done:
|
|
|
|
#define ENABLE_AND_RESTORE_FPU64(ctx, xtmp1, xtmp2, wtmp1, wtmp2) \
|
|
ENABLE_FPU(xtmp1) \
|
|
GET_THREAD_CONTEXT_AND_RESTORE_FPCR_FPSR(ctx, xtmp1, xtmp2, wtmp1, wtmp2) \
|
|
RESTORE_FPU64_ALL_REGISTERS(ctx, xtmp1)
|
|
|
|
#define ENABLE_AND_RESTORE_FPU32(ctx, xtmp1, xtmp2, wtmp1, wtmp2) \
|
|
ENABLE_FPU(xtmp1) \
|
|
GET_THREAD_CONTEXT_AND_RESTORE_FPCR_FPSR(ctx, xtmp1, xtmp2, wtmp1, wtmp2) \
|
|
RESTORE_FPU32_ALL_REGISTERS(ctx, xtmp1)
|
|
|
|
#define ERET_WITH_SPECULATION_BARRIER \
|
|
eret; \
|
|
dsb nsh; \
|
|
isb
|