int plat_wait_event(int *fds_hnds, int count, int timeout_ms);
void plat_sleep_ms(int ms);
+void *plat_mmap(unsigned long addr, size_t size, int need_exec);
+void *plat_mremap(void *ptr, size_t oldsize, size_t newsize);
+void plat_munmap(void *ptr, size_t size);
+
/* timers, to be used for time diff and must refer to the same clock */
unsigned int plat_get_ticks_ms(void);
unsigned int plat_get_ticks_us(void);
#include <time.h>
#include <unistd.h>
#include <sys/mman.h>
+#include <errno.h>
#include "../common/plat.h"
+/* XXX: maybe unhardcode pagesize? */
+#define HUGETLB_PAGESIZE (2 * 1024 * 1024)
+#define HUGETLB_THRESHOLD (HUGETLB_PAGESIZE / 2)
+#ifndef MAP_HUGETLB
+#define MAP_HUGETLB 0x40000 /* arch specific */
+#endif
+
int plat_is_dir(const char *path)
{
return ret;
}
-void *plat_mmap(unsigned long addr, size_t size)
+void *plat_mmap(unsigned long addr, size_t size, int need_exec)
{
+ static int hugetlb_disabled;
+ int prot = PROT_READ | PROT_WRITE;
+ int flags = MAP_PRIVATE | MAP_ANONYMOUS;
void *req, *ret;
req = (void *)addr;
- ret = mmap(req, size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+ if (need_exec)
+ prot |= PROT_EXEC;
+ if (size >= HUGETLB_THRESHOLD && !hugetlb_disabled)
+ flags |= MAP_HUGETLB;
+
+ ret = mmap(req, size, prot, flags, -1, 0);
+ if (ret == MAP_FAILED && (flags & MAP_HUGETLB)) {
+ fprintf(stderr,
+ "warning: failed to do hugetlb mmap (%p, %zu): %d\n",
+ req, size, errno);
+ hugetlb_disabled = 1;
+ flags &= ~MAP_HUGETLB;
+ ret = mmap(req, size, prot, flags, -1, 0);
+ }
if (ret == MAP_FAILED)
return NULL;
- if (ret != req)
- printf("warning: mmaped to %p, requested %p\n", ret, req);
+
+ if (req != NULL && ret != req)
+ fprintf(stderr,
+ "warning: mmaped to %p, requested %p\n", ret, req);
return ret;
}
void plat_munmap(void *ptr, size_t size)
{
- munmap(ptr, size);
+ int ret;
+
+ ret = munmap(ptr, size);
+ if (ret != 0 && (size & (HUGETLB_PAGESIZE - 1))) {
+ // prehaps an autorounded hugetlb mapping?
+ size = (size + HUGETLB_PAGESIZE - 1) & ~(HUGETLB_PAGESIZE - 1);
+ ret = munmap(ptr, size);
+ }
+ if (ret != 0) {
+ fprintf(stderr,
+ "munmap(%p, %zu) failed: %d\n", ptr, size, errno);
+ }
}
/* lprintf */
#include "linux/fbdev.h"
#include "common/fonts.h"
#include "common/input.h"
+#include "common/plat.h"
#include "menu.h"
#include "main.h"
#include "plat.h"
*h = g_layer_h;
}
+static void *pl_mmap(unsigned int size)
+{
+ return plat_mmap(0, size, 0);
+}
+
+static void pl_munmap(void *ptr, unsigned int size)
+{
+ plat_munmap(ptr, size);
+}
+
struct rearmed_cbs pl_rearmed_cbs = {
pl_get_layer_pos,
pl_vout_open,
pl_vout_set_mode,
pl_vout_flip,
pl_vout_close,
+ pl_mmap,
+ pl_munmap,
};
/* watchdog */
void *(*pl_vout_set_mode)(int w, int h, int bpp);
void *(*pl_vout_flip)(void);
void (*pl_vout_close)(void);
+ void *(*mmap)(unsigned int size);
+ void (*munmap)(void *ptr, unsigned int size);
// these are only used by some frontends
void (*pl_vout_raw_flip)(int x, int y);
void (*pl_vout_set_raw_vram)(void *vram);
/////////////////////////////////////////////////////////////////////////////
-int renderer_init(void)
+static void set_vram(void *vram)
{
- psxVub=(void *)gpu.vram;
+ psxVub=vram;
psxVsb=(signed char *)psxVub; // different ways of accessing PSX VRAM
psxVsw=(signed short *)psxVub;
psxVul=(uint32_t *)psxVub;
psxVuw_eom=psxVuw+1024*512; // pre-calc of end of vram
+}
+
+int renderer_init(void)
+{
+ set_vram(gpu.vram);
PSXDisplay.RGB24 = FALSE; // init some stuff
PSXDisplay.Interlaced = FALSE;
{
iUseDither = cbs->gpu_peops.iUseDither;
dwActFixes = cbs->gpu_peops.dwActFixes;
+ set_vram(gpu.vram);
}
static int is_opened;
-int renderer_init(void)
+static void set_vram(void *vram)
{
- psxVub=(void *)gpu.vram;
+ psxVub=vram;
psxVuw=(unsigned short *)psxVub;
+}
+
+int renderer_init(void)
+{
+ set_vram(gpu.vram);
PSXDisplay.RGB24 = FALSE; // init some stuff
PSXDisplay.Interlaced = FALSE;
bUseFastMdec = cbs->gpu_peopsgl.bUseFastMdec;
iTexGarbageCollection = cbs->gpu_peopsgl.iTexGarbageCollection;
iVRamSize = cbs->gpu_peopsgl.iVRamSize;
+
+ set_vram(gpu.vram);
}
void SetAspectRatio(void)
#define command_lengths cmd_lengths
static unsigned int *ex_regs;
+static int initialized;
#define PCSX
#define SET_Ex(r, v) \
#define ENHANCEMENT_BUF_SIZE (1024 * 1024 * 2 * 4 + 4096)
-int renderer_init(void)
+static void map_enhancement_buffer(void)
{
- initialize_psx_gpu(&egpu, gpu.vram);
- ex_regs = gpu.ex_regs;
+ // currently we use 4x 1024*1024 buffers instead of single 2048*1024
+ // to be able to reuse 1024-width code better (triangle setup,
+ // dithering phase, lines).
+ gpu.enhancement_bufer = gpu.mmap(ENHANCEMENT_BUF_SIZE);
+ if (gpu.enhancement_bufer == NULL)
+ fprintf(stderr, "failed to map enhancement buffer\n");
+ egpu.enhancement_buf_ptr = gpu.enhancement_bufer;
+}
- if (gpu.enhancement_bufer == NULL) {
- // currently we use 4x 1024*1024 buffers instead of single 2048*1024
- // to be able to reuse 1024-width code better (triangle setup,
- // dithering phase, lines).
- gpu.enhancement_bufer = mmap(NULL, ENHANCEMENT_BUF_SIZE,
- PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
- if (gpu.enhancement_bufer == MAP_FAILED) {
- printf("OOM for enhancement buffer\n");
- gpu.enhancement_bufer = NULL;
- }
+int renderer_init(void)
+{
+ if (gpu.vram != NULL) {
+ initialize_psx_gpu(&egpu, gpu.vram);
+ initialized = 1;
}
- egpu.enhancement_buf_ptr = gpu.enhancement_bufer;
+ if (gpu.mmap != NULL && gpu.enhancement_bufer == NULL)
+ map_enhancement_buffer();
+
+ ex_regs = gpu.ex_regs;
return 0;
}
void renderer_finish(void)
{
if (gpu.enhancement_bufer != NULL)
- munmap(gpu.enhancement_bufer, ENHANCEMENT_BUF_SIZE);
+ gpu.munmap(gpu.enhancement_bufer, ENHANCEMENT_BUF_SIZE);
gpu.enhancement_bufer = NULL;
egpu.enhancement_buf_ptr = NULL;
+ initialized = 0;
}
static __attribute__((noinline)) void
sync_enhancement_buffers(0, 0, 1024, 512);
}
enhancement_was_on = cbs->gpu_neon.enhancement_enable;
+
+ if (!initialized) {
+ initialize_psx_gpu(&egpu, gpu.vram);
+ initialized = 1;
+ }
+
+ if (gpu.enhancement_bufer == NULL)
+ map_enhancement_buffer();
}
enableAbbeyHack = cbs->gpu_unai.abe_hack;
light = !cbs->gpu_unai.no_light;
blend = !cbs->gpu_unai.no_blend;
+
+ GPU_FrameBuffer = (u16 *)gpu.vram;
}
#endif
//#define log_anomaly gpu_log
#define log_anomaly(...)
-struct psx_gpu gpu __attribute__((aligned(2048)));
+struct psx_gpu gpu;
static noinline int do_cmd_buffer(uint32_t *data, int count);
static void finish_vram_transfer(int is_read);
}
}
+// double, for overdraw guard
+#define VRAM_SIZE (1024 * 512 * 2 * 2)
+
+static int map_vram(void)
+{
+ gpu.vram = gpu.mmap(VRAM_SIZE);
+ if (gpu.vram != NULL) {
+ gpu.vram += 4096 / 2;
+ return 0;
+ }
+ else {
+ fprintf(stderr, "could not map vram, expect crashes\n");
+ return -1;
+ }
+}
+
long GPUinit(void)
{
int ret;
gpu.cmd_len = 0;
do_reset();
+ if (gpu.mmap != NULL) {
+ if (map_vram() != 0)
+ ret = -1;
+ }
return ret;
}
long GPUshutdown(void)
{
+ long ret;
+
renderer_finish();
- return vout_finish();
+ ret = vout_finish();
+ if (gpu.vram != NULL) {
+ gpu.vram -= 4096 / 2;
+ gpu.munmap(gpu.vram, VRAM_SIZE);
+ }
+ gpu.vram = NULL;
+
+ return ret;
}
void GPUwriteStatus(uint32_t data)
case 1: // save
if (gpu.cmd_len > 0)
flush_cmd_buffer();
- memcpy(freeze->psxVRam, gpu.vram, sizeof(gpu.vram));
+ memcpy(freeze->psxVRam, gpu.vram, 1024 * 512 * 2);
memcpy(freeze->ulControl, gpu.regs, sizeof(gpu.regs));
memcpy(freeze->ulControl + 0xe0, gpu.ex_regs, sizeof(gpu.ex_regs));
freeze->ulStatus = gpu.status.reg;
break;
case 0: // load
- memcpy(gpu.vram, freeze->psxVRam, sizeof(gpu.vram));
+ memcpy(gpu.vram, freeze->psxVRam, 1024 * 512 * 2);
memcpy(gpu.regs, freeze->ulControl, sizeof(gpu.regs));
memcpy(gpu.ex_regs, freeze->ulControl + 0xe0, sizeof(gpu.ex_regs));
gpu.status.reg = freeze->ulStatus;
gpu.state.allow_interlace = cbs->gpu_neon.allow_interlace;
gpu.state.enhancement_enable = cbs->gpu_neon.enhancement_enable;
+ gpu.mmap = cbs->mmap;
+ gpu.munmap = cbs->munmap;
+
+ // delayed vram mmap
+ if (gpu.vram == NULL)
+ map_vram();
+
if (cbs->pl_vout_set_raw_vram)
cbs->pl_vout_set_raw_vram(gpu.vram);
renderer_set_config(cbs);
#define CMD_BUFFER_LEN 1024
struct psx_gpu {
- uint16_t vram[1024 * 512];
- uint16_t guard[1024 * 512]; // overdraw guard
uint32_t cmd_buffer[CMD_BUFFER_LEN];
uint32_t regs[16];
+ uint16_t *vram;
union {
uint32_t reg;
struct {
uint32_t pending_fill[3];
} frameskip;
uint16_t *enhancement_bufer;
+ void *(*mmap)(unsigned int size);
+ void (*munmap)(void *ptr, unsigned int size);
};
extern struct psx_gpu gpu;
notaz.gp2x.de / pcsx_rearmed.git / commitdiff