notaz.gp2x.de / pcsx_rearmed.git / blame
| Commit | Line | Data |
|---|---|---|
| 323bb280 AL |
1 | // SPDX-License-Identifier: GPL-2.0-or-later |
| 2 | /* | |
| 3 | * Copyright (C) 2022 Ash Logan <ash@heyquark.com> | |
| 4 | */ | |
| 5 | ||
| 6 | #include <coreinit/memorymap.h> | |
| 7 | #include <malloc.h> | |
| 8 | #include <stdbool.h> | |
| 9 | ||
| 10 | #include "../memmap.h" | |
| 11 | #include "../psxhw.h" | |
| 12 | #include "../psxmem.h" | |
| 13 | #include "../r3000a.h" | |
| 14 | ||
| 15 | #include "mem.h" | |
| 16 | ||
| 17 | void* code_buffer; | |
| 18 | ||
| 19 | static void* wiiu_mmap(uint32_t requested_va, size_t length, void* backing_mem) { | |
| 20 | if (length < OS_PAGE_SIZE) length = OS_PAGE_SIZE; | |
| 21 | ||
| 22 | uint32_t va = OSAllocVirtAddr(requested_va, length, 0); | |
| 23 | if (!va) return MAP_FAILED; | |
| 24 | ||
| 25 | BOOL mapped = OSMapMemory(va, OSEffectiveToPhysical((uint32_t)backing_mem), | |
| 26 | length, OS_MAP_MEMORY_READ_WRITE); | |
| 27 | if (!mapped) { | |
| 28 | OSFreeVirtAddr(va, length); | |
| 29 | return MAP_FAILED; | |
| 30 | } | |
| 31 | ||
| 32 | return (void*)va; | |
| 33 | } | |
| 34 | ||
| 35 | static void wiiu_unmap(void* va, size_t length) { | |
| 36 | if (va == MAP_FAILED) return; | |
| 37 | OSUnmapMemory((uint32_t)va, length); | |
| 38 | OSFreeVirtAddr((uint32_t)va, length); | |
| 39 | } | |
| 40 | ||
| 41 | static void* psx_mem; | |
| 42 | static void* psx_parallel; | |
| 43 | static void* psx_scratch; | |
| 44 | static void* psx_bios; | |
| 45 | ||
| 46 | int lightrec_init_mmap(void) { | |
| 47 | psx_mem = memalign(OS_PAGE_SIZE, 0x200000); | |
| 48 | psx_parallel = memalign(OS_PAGE_SIZE, 0x10000); | |
| 49 | psx_scratch = memalign(OS_PAGE_SIZE, 0x10000); | |
| 50 | psx_bios = memalign(OS_PAGE_SIZE, 0x80000); | |
| 51 | if (!psx_mem || !psx_parallel || !psx_scratch || !psx_bios) | |
| 52 | goto cleanup_allocations; | |
| 53 | ||
| 54 | uint32_t avail_va; | |
| 55 | uint32_t avail_va_size; | |
| 56 | OSGetMapVirtAddrRange(&avail_va, &avail_va_size); | |
| 57 | if (!avail_va || avail_va_size < 0x20000000) | |
| 58 | goto cleanup_allocations; | |
| 59 | ||
| 60 | // Map 4x ram mirrors | |
| 61 | int i; | |
| 62 | for (i = 0; i < 4; i++) { | |
| 63 | void* ret = wiiu_mmap(avail_va + 0x200000 * i, 0x200000, psx_mem); | |
| 64 | if (ret == MAP_FAILED) break; | |
| 65 | } | |
| 66 | if (i != 4) { | |
| 67 | for (int i = 0; i < 4; i++) | |
| 68 | wiiu_unmap(avail_va + 0x200000 * i, 0x200000); | |
| 69 | goto cleanup_allocations; | |
| 70 | } | |
| 71 | psxM = (void*)avail_va; | |
| 72 | ||
| 73 | psxP = wiiu_mmap(avail_va + 0x1f000000, 0x10000, psx_parallel); | |
| 74 | psxH = wiiu_mmap(avail_va + 0x1f800000, 0x10000, psx_scratch); | |
| 75 | psxR = wiiu_mmap(avail_va + 0x1fc00000, 0x80000, psx_bios); | |
| 76 | ||
| 77 | if (psxP == MAP_FAILED || psxH == MAP_FAILED || psxR == MAP_FAILED) { | |
| 78 | for (int i = 0; i < 4; i++) | |
| 79 | wiiu_unmap(psxM + 0x200000 * i, 0x200000); | |
| 80 | wiiu_unmap(psxP, 0x10000); | |
| 81 | wiiu_unmap(psxH, 0x10000); | |
| 82 | wiiu_unmap(psxR, 0x80000); | |
| 83 | goto cleanup_allocations; | |
| 84 | } | |
| 85 | ||
| 86 | code_buffer = WUP_RWX_MEM_BASE; | |
| 87 | ||
| 88 | return 0; | |
| 89 | ||
| 90 | cleanup_allocations: | |
| 91 | free(psx_mem); | |
| 92 | free(psx_parallel); | |
| 93 | free(psx_scratch); | |
| 94 | free(psx_bios); | |
| 95 | return -1; | |
| 96 | } | |
| 97 | ||
| 98 | void lightrec_free_mmap(void) { | |
| 99 | for (int i = 0; i < 4; i++) | |
| 100 | wiiu_unmap(psxM + 0x200000 * i, 0x200000); | |
| 101 | wiiu_unmap(psxP, 0x10000); | |
| 102 | wiiu_unmap(psxH, 0x10000); | |
| 103 | wiiu_unmap(psxR, 0x80000); | |
| 104 | free(psx_mem); | |
| 105 | free(psx_parallel); | |
| 106 | free(psx_scratch); | |
| 107 | free(psx_bios); | |
| 108 | } |