int test5()
{
/* Blackfin GCC after version 2006R2 supports L1 allocation */
short *x = (short *) sram_alloc(N * 2, L1_DATA_B_SRAM);
short *y = (short *) sram_alloc(N * 2, L1_DATA_A_SRAM);
int i, k, ret;
unsigned int time[M];
for (i = 0; i < N; i++) {
x[i] = 1;
y[i] = 1;
}
for (k = 0; k < M; k++) {
ret = dot_asm_cycles(x, y, N);
time[k] = after - before;
}
printf("Test 5: data in internal memory, inboard cycles\n");
printf(" ret = %d: run time:\n ", ret);
for (k = 0; k < M; k++)
printf("%u ", time[k]);
printf("\n");
sram_free(x);
sram_free(y);
return ret;
}
static int allocate_sram(struct snd_pcm_substream *substream, unsigned size,
struct snd_pcm_hardware *ppcm)
{
struct snd_dma_buffer *buf = &substream->dma_buffer;
struct snd_dma_buffer *iram_dma = NULL;
dma_addr_t iram_phys = 0;
void *iram_virt = NULL;
if (buf->private_data || !size)
return 0;
ppcm->period_bytes_max = size;
iram_virt = sram_alloc(size, &iram_phys);
if (!iram_virt)
goto exit1;
iram_dma = kzalloc(sizeof(*iram_dma), GFP_KERNEL);
if (!iram_dma)
goto exit2;
iram_dma->area = iram_virt;
iram_dma->addr = iram_phys;
memset(iram_dma->area, 0, size);
iram_dma->bytes = size;
buf->private_data = iram_dma;
return 0;
exit2:
if (iram_virt)
sram_free(iram_virt, size);
exit1:
return -ENOMEM;
}
static int allocate_sram(struct snd_pcm_substream *substream, unsigned size,
struct snd_pcm_hardware *ppcm)
{
struct snd_dma_buffer *buf = &substream->dma_buffer;
#if !defined(CONFIG_ARCH_TI81XX) /* No SRAM support on TI81xx */
struct snd_dma_buffer *iram_dma = NULL;
dma_addr_t iram_phys = 0;
void *iram_virt = NULL;
#endif
if (buf->private_data || !size)
return 0;
#if !defined(CONFIG_ARCH_TI81XX) /* No SRAM support on TI81xx */
ppcm->period_bytes_max = size;
iram_virt = sram_alloc(size, &iram_phys);
if (!iram_virt)
goto exit1;
iram_dma = kzalloc(sizeof(*iram_dma), GFP_KERNEL);
if (!iram_dma)
goto exit2;
iram_dma->area = iram_virt;
iram_dma->addr = iram_phys;
memset(iram_dma->area, 0, size);
iram_dma->bytes = size;
buf->private_data = iram_dma;
return 0;
exit2:
if (iram_virt)
sram_free(iram_virt, size);
exit1:
return -ENOMEM;
#else
return 0;
#endif
}
static int __init davinci_pm_probe(struct platform_device *pdev)
{
pdata = pdev->dev.platform_data;
if (!pdata) {
dev_err(&pdev->dev, "cannot get platform data\n");
return -ENOENT;
}
davinci_sram_suspend = sram_alloc(davinci_cpu_suspend_sz, NULL);
if (!davinci_sram_suspend) {
dev_err(&pdev->dev, "cannot allocate SRAM memory\n");
return -ENOMEM;
}
davinci_sram_push(davinci_sram_suspend, davinci_cpu_suspend,
davinci_cpu_suspend_sz);
suspend_set_ops(&davinci_pm_ops);
return 0;
}
