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page_hash_count_pages(): report page hash size in memory stat

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Balazs Gerofi
2016-09-21 14:30:31 +09:00
parent ffd3f53785
commit 8c0a5a5e61
1 changed files with 24 additions and 0 deletions
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24
kernel/mem.c
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@ -195,6 +195,7 @@ static struct ihk_mc_pa_ops allocator = {
void sbox_write(int offset, unsigned int value); void sbox_write(int offset, unsigned int value);
static int page_hash_count_pages(void);
static void query_free_mem_interrupt_handler(void *priv) static void query_free_mem_interrupt_handler(void *priv)
{ {
int i, pages = 0; int i, pages = 0;
@ -220,6 +221,8 @@ static void query_free_mem_interrupt_handler(void *priv)
kmalloc_memcheck(); kmalloc_memcheck();
} }
kprintf("Page hash: %d pages active\n", page_hash_count_pages());
#ifdef ATTACHED_MIC #ifdef ATTACHED_MIC
sbox_write(SBOX_SCRATCH0, pages); sbox_write(SBOX_SCRATCH0, pages);
sbox_write(SBOX_SCRATCH1, 1); sbox_write(SBOX_SCRATCH1, 1);
@ -562,6 +565,27 @@ static void page_init(void)
return; return;
} }
static int page_hash_count_pages(void)
{
int i;
int cnt = 0;
for (i = 0; i < PHYS_PAGE_HASH_SIZE; ++i) {
unsigned long irqflags;
struct page *page_iter;
irqflags = ihk_mc_spinlock_lock(&page_hash_locks[i]);
list_for_each_entry(page_iter, &page_hash[i], hash) {
++cnt;
}
ihk_mc_spinlock_unlock(&page_hash_locks[i], irqflags);
}
return cnt;
}
/* XXX: page_hash_lock must be held */ /* XXX: page_hash_lock must be held */
static struct page *__phys_to_page(uintptr_t phys) static struct page *__phys_to_page(uintptr_t phys)
{ {