261 lines
6.9 KiB
C
261 lines
6.9 KiB
C
#include <gint/display.h>
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#include <gint/keyboard.h>
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#include <gint/hardware.h>
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#include <gint/dma.h>
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#include <gint/std/string.h>
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#include <gintctl/perf.h>
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#include <gintctl/util.h>
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#include <libprof.h>
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extern void memory_read(volatile uint8_t *area, uint32_t size);
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extern void memory_write(volatile uint8_t *area, uint32_t size);
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extern void memory_dsp_xram_memset(volatile uint8_t *area, uint32_t size);
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extern void memory_dsp_yram_memset(volatile uint8_t *area, uint32_t size);
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extern void memory_dsp_xyram_memcpy(volatile uint8_t *dst,
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volatile uint8_t *src, uint32_t size);
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GILRAM GALIGNED(32) static char ilram_buffer[0x800];
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GXRAM GALIGNED(32) static char xram_buffer[0x800];
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GYRAM GALIGNED(32) static char yram_buffer[0x800];
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struct results
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{
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void *address;
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uint32_t size;
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int rounds;
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/* In microseconds for the whole area */
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uint32_t read_C_u8_time;
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uint32_t write_C_u8_time;
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uint32_t read_u8_time;
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uint32_t write_u8_time;
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uint32_t memcpy_time;
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uint32_t memset_time;
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uint32_t dma_memcpy_time;
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uint32_t dma_memset_time;
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uint32_t dsp_xram_memset_time;
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uint32_t dsp_yram_memset_time;
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uint32_t dsp_xyram_memcpy_time;
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/* In kbytes/second */
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uint32_t read_C_u8_speed;
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uint32_t write_C_u8_speed;
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uint32_t read_u8_speed;
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uint32_t write_u8_speed;
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uint32_t memcpy_speed;
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uint32_t memset_speed;
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uint32_t dma_memcpy_speed;
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uint32_t dma_memset_speed;
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uint32_t dsp_xram_memset_speed;
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uint32_t dsp_yram_memset_speed;
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uint32_t dsp_xyram_memcpy_speed;
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};
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static void test(struct results *r, void *address, uint32_t size, int rounds)
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{
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volatile uint8_t *area = address;
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volatile uint8_t x;
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r->address = address;
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r->size = size;
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r->rounds = rounds;
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/* Defaults for conditional tests */
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r->dsp_xram_memset_time = 1;
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r->dsp_yram_memset_time = 1;
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r->dsp_xyram_memcpy_time = 1;
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r->read_C_u8_time = prof_exec({
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for(int i = 0; i < rounds; i++)
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{
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for(uint index = 0; index < size; index++)
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x = area[index];
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}
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});
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r->write_C_u8_time = prof_exec({
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for(int i = 0; i < rounds; i++)
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{
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for(uint index = 0; index < size; index++)
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area[index] = x;
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}
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});
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r->read_u8_time = prof_exec({
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for(int i = 0; i < rounds; i++)
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memory_read(area, size);
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});
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r->write_u8_time = prof_exec({
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for(int i = 0; i < rounds; i++)
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memory_write(area, size);
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});
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r->memset_time = prof_exec({
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for(int i = 0; i < rounds; i++)
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memset(address, 0, size);
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});
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r->memcpy_time = 2 * prof_exec({
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for(int i = 0; i < rounds; i++)
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memcpy(address + size / 2, address, size / 2);
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});
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r->dma_memset_time = prof_exec({
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#ifdef FXCG50
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for(int i = 0; i < rounds; i++)
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dma_memset(address, 0, size);
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#endif
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});
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r->dma_memcpy_time = 2 * prof_exec({
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#ifdef FXCG50
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for(int i = 0; i < rounds; i++)
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dma_memcpy(address + size / 2, address, size / 2);
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#endif
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});
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if(address == &xram_buffer)
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{
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/* Since the buffers are small, repeat 16 times */
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r->dsp_xram_memset_time = prof_exec({
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for(int i = 0; i < rounds; i++)
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memory_dsp_xram_memset(address, size);
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});
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}
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if(address == &yram_buffer)
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{
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r->dsp_yram_memset_time = prof_exec({
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for(int i = 0; i < rounds; i++)
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memory_dsp_yram_memset(address, size);
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});
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}
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if(address == &xram_buffer)
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{
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void *x = xram_buffer;
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void *y = yram_buffer;
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/* Since the buffers are small, repeat 16 times */
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r->dsp_xyram_memcpy_time = prof_exec({
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for(int i = 0; i < rounds; i++)
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memory_dsp_xyram_memcpy(y, x, size);
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});
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}
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if(address == &yram_buffer)
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{
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void *x = xram_buffer;
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void *y = yram_buffer;
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r->dsp_xyram_memcpy_time = prof_exec({
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for(int i = 0; i < rounds; i++)
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memory_dsp_xyram_memcpy(x, y, size);
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});
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}
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/* Convert from us/(size bytes) to kb/(1 second) */
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uint64_t factor = size * 1000 * rounds;
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r->read_C_u8_speed = factor / r->read_C_u8_time;
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r->write_C_u8_speed = factor / r->write_C_u8_time;
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r->read_u8_speed = factor / r->read_u8_time;
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r->write_u8_speed = factor / r->write_u8_time;
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r->memcpy_speed = factor / r->memcpy_time;
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r->memset_speed = factor / r->memset_time;
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r->dma_memcpy_speed = factor / r->dma_memcpy_time;
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r->dma_memset_speed = factor / r->dma_memset_time;
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r->dsp_xram_memset_speed = factor / r->dsp_xram_memset_time;
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r->dsp_yram_memset_speed = factor / r->dsp_yram_memset_time;
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r->dsp_xyram_memcpy_speed = factor / r->dsp_xyram_memcpy_time;
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}
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static void results_line(int row, uint32_t time, uint32_t speed)
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{
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dprint_opt(260, row_y(row), C_BLACK, C_NONE, DTEXT_RIGHT, DTEXT_TOP,
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"%d us", time);
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dprint_opt(370, row_y(row), C_BLACK, C_NONE, DTEXT_RIGHT, DTEXT_TOP,
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"%3.3j MB/s", speed);
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}
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/* gintctl_perf_memory(): Memory primitives and reading/writing speed */
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void gintctl_perf_memory(void)
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{
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/* TODO: Memory performance on SH3 */
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if(isSH3()) return;
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int key = 0;
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struct results r = { 0 };
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while(key != KEY_EXIT)
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{
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dclear(C_WHITE);
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row_title("Memory access speed");
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#ifdef FXCG50
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row_print( 3, 1, "Naive C-loop u8 read:");
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row_print( 4, 1, "Naive C-loop u8 write:");
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row_print( 5, 1, "Rolled asm u8 read:");
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row_print( 6, 1, "Rolled asm u8 write:");
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row_print( 7, 1, "gint's memcpy():");
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row_print( 8, 1, "gint's memset():");
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row_print( 9, 1, "gint's dma_memcpy():");
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row_print(10, 1, "gint's dma_memset():");
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if(r.address == &xram_buffer)
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row_print(11, 1, "DSP XRAM memset():");
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if(r.address == &yram_buffer)
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row_print(11, 1, "DSP YRAM memset():");
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if(r.address == &xram_buffer || r.address == &yram_buffer)
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row_print(12, 1, "DSP XRAM->YRAM memcpy():");
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if(!r.address)
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{
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row_print(1, 1, "No test yet");
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}
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else
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{
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row_print(1, 1, "Results for area %08x (%d bytes, %d "
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"round%s)", (uint32_t)r.address, r.size,
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r.rounds, (r.rounds > 1) ? "s" : "");
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results_line(3, r.read_C_u8_time, r.read_C_u8_speed);
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results_line(4, r.write_C_u8_time, r.write_C_u8_speed);
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results_line(5, r.read_u8_time, r.read_u8_speed);
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results_line(6, r.write_u8_time, r.write_u8_speed);
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results_line(7, r.memcpy_time, r.memcpy_speed);
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results_line(8, r.memset_time, r.memset_speed);
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results_line(9, r.dma_memcpy_time, r.dma_memcpy_speed);
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results_line(10,r.dma_memset_time, r.dma_memset_speed);
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if(r.address == &xram_buffer)
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{
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results_line(11, r.dsp_xram_memset_time,
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r.dsp_xram_memset_speed);
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}
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if(r.address == &yram_buffer)
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{
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results_line(11, r.dsp_yram_memset_time,
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r.dsp_yram_memset_speed);
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}
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if(r.address==&xram_buffer || r.address==&yram_buffer)
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{
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results_line(12, r.dsp_xyram_memcpy_time,
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r.dsp_xyram_memcpy_speed);
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}
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}
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fkey_button(1, "RAM");
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fkey_button(2, "ILRAM");
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fkey_button(3, "XRAM");
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fkey_button(4, "YRAM");
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#endif
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dupdate();
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key = getkey().key;
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if(key == KEY_F1) test(&r, gint_vram, _(0x400,0x8000), 1);
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if(key == KEY_F2) test(&r, &ilram_buffer, 0x800, 64);
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if(key == KEY_F3) test(&r, &xram_buffer, 0x800, 64);
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if(key == KEY_F4) test(&r, &yram_buffer, 0x800, 64);
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}
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}
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