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DMA test during init

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This commit is contained in:
Balazs Gerofi
2012-08-01 06:56:23 +09:00
parent bcfe8c4c06
commit 0f8749e063
2 changed files with 44 additions and 28 deletions
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2
kernel/ap.c
View File

@ -18,9 +18,11 @@ static void ap_wait(void)
kmalloc_init();
sched_init();
/*
if (find_command_line("hidos")) {
init_host_syscall_channel();
}
*/
pc_ap_init();
/* one of them listens */

70
kernel/init.c
View File

@ -34,35 +34,48 @@ static void dma_test(void)
{
struct aal_dma_request req;
unsigned long fin = 0;
int i;
int i, j;
for (i = 0; i < 8; i++) {
data[i] = 8 - i;
for (j = 0; j < 2; ++j) {
fin = 0;
memset(data, 0, 1024 * sizeof(unsigned long));
for (i = 0; i < 8; i++) {
data[i] = i;
}
kprintf("DMA Test Started.\n");
memset(&req, 0, sizeof(req));
req.src_os = AAL_THIS_OS;
req.src_phys = virt_to_phys(data);
req.dest_os = AAL_THIS_OS;
req.dest_phys = virt_to_phys(&data[256]);
req.size = 64;
req.notify = (void *)virt_to_phys(&fin);
req.notify_os = AAL_THIS_OS;
req.priv = (void *)0x2984;
kprintf("VtoP : %p, %lx\n", data, virt_to_phys(data));
kprintf("notify : %p, %lx (%lx)\n", &fin, virt_to_phys(&fin),
sizeof(req));
if (aal_mc_dma_request(0, &req) != 0) {
kprintf("Failed to request DMA!\n");
}
kprintf("DMA Test Wait.\n");
while (!fin) {
barrier();
}
kprintf("DMA Test End.\n");
for (i = 0; i < 8; i++) {
if (data[i] != data[256 + i]) {
kprintf("DMA result is inconsistent!\n");
panic("");
}
}
}
kprintf("DMA Test Started.\n");
memset(&req, 0, sizeof(req));
req.src_os = AAL_THIS_OS;
req.src_phys = virt_to_phys(data);
req.dest_os = AAL_THIS_OS;
req.dest_phys = virt_to_phys(data + 256);
req.size = 64;
req.notify = (void *)virt_to_phys(&fin);
req.notify_os = AAL_THIS_OS;
req.priv = (void *)0x2984;
kprintf("VtoP : %p, %lx\n", data, virt_to_phys(data));
kprintf("notify : %p, %lx (%lx)\n", &fin, virt_to_phys(&fin),
sizeof(req));
if (aal_mc_dma_request(0, &req) != 0) {
kprintf("Failed to request DMA!\n");
}
kprintf("DMA Test Wait.\n");
while (!fin) {
barrier();
}
kprintf("DMA Test End.\n");
}
extern char *aal_mc_get_kernel_args(void);
@ -144,7 +157,7 @@ static void rest_init(void)
aal_mc_dma_init();
dma_test();
pc_test();
//pc_test();
ap_init();
cpu_local_var_init();
@ -190,6 +203,7 @@ int main(void)
kputs("MCK/AAL booted.\n");
schedule();
return 0;