6a50b8a68d
Similar fix to https://github.com/libretro/pcsx_rearmed/pull/390. The Nintendo svcBackdoor can cause stack corruption if an interrupt happens during it, this uses Luma3DS/Rosalina's svcCustomBackdoor instead.
61 lines
1 KiB
C
61 lines
1 KiB
C
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <3ds.h>
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#include "3ds_utils.h"
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typedef s32 (*ctr_callback_type)(void);
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void check_rosalina() {
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int64_t version;
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uint32_t major;
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has_rosalina = false;
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if (!svcGetSystemInfo(&version, 0x10000, 0)) {
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major = GET_VERSION_MAJOR(version);
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if (major >= 8)
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has_rosalina = true;
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}
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}
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static void ctr_invalidate_ICache_kernel(void)
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{
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__asm__ volatile(
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"cpsid aif\n\t"
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"mov r0, #0\n\t"
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"mcr p15, 0, r0, c7, c5, 0\n\t");
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}
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static void ctr_flush_DCache_kernel(void)
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{
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__asm__ volatile(
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"cpsid aif\n\t"
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"mov r0, #0\n\t"
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"mcr p15, 0, r0, c7, c10, 0\n\t");
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}
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void ctr_invalidate_ICache(void)
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{
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svcBackdoor((ctr_callback_type)ctr_invalidate_ICache_kernel);
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}
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void ctr_flush_DCache(void)
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{
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svcBackdoor((ctr_callback_type)ctr_flush_DCache_kernel);
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}
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void ctr_flush_invalidate_cache(void)
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{
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if (has_rosalina) {
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ctr_clear_cache();
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} else {
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ctr_flush_DCache();
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ctr_invalidate_ICache();
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}
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}
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