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Commit 975efdb1 authored by Pauli Nieminen's avatar Pauli Nieminen Committed by Dave Airlie
Browse files

drm/ttm: Use set_pages_array_wc instead of set_memory_wc. 



Using single call to set multiple pages to wc reduces number of expensive cache
flushes.

Signed-off-by: default avatarPauli Nieminen <suokkos@gmail.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 4f646254

drivers/gpu/drm/ttm/ttm_page_alloc.c

+1 −11
Original line number Diff line number Diff line
@@ -113,17 +113,7 @@ static struct ttm_pool_manager _manager = { 
	.page_alloc_inited	= ATOMIC_INIT(0)

};



#ifdef CONFIG_X86

/* TODO: add this to x86 like _uc, this version here is inefficient */

static int set_pages_array_wc(struct page **pages, int addrinarray)

{

	int i;



	for (i = 0; i < addrinarray; i++)

		set_memory_wc((unsigned long)page_address(pages[i]), 1);

	return 0;

}

#else

#ifndef CONFIG_X86

static int set_pages_array_wb(struct page **pages, int addrinarray)

{

#ifdef TTM_HAS_AGP