Commit 48a719c2 authored by Borislav Petkov's avatar Borislav Petkov Committed by H. Peter Anvin
Browse files

intel-agp: Switch to wbinvd_on_all_cpus 



Simplify if-statement while at it.

[ hpa: we need to #include <asm/smp.h> ]

Cc: Dave Jones <davej@redhat.com>
Cc: David Airlie <airlied@linux.ie>
Signed-off-by: default avatarBorislav Petkov <borislav.petkov@amd.com>
LKML-Reference: <1264172467-25155-3-git-send-email-bp@amd64.org>
Signed-off-by: default avatarH. Peter Anvin <hpa@zytor.com>
parent a7b480e7

drivers/char/agp/intel-agp.c

+4 −11
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 
#include <linux/kernel.h>

#include <linux/pagemap.h>

#include <linux/agp_backend.h>

#include <asm/smp.h>

#include "agp.h"



/*
@@ -815,12 +816,6 @@ static void intel_i830_setup_flush(void) 
		intel_i830_fini_flush();

}



static void

do_wbinvd(void *null)

{

	wbinvd();

}



/* The chipset_flush interface needs to get data that has already been

 * flushed out of the CPU all the way out to main memory, because the GPU

 * doesn't snoop those buffers.
@@ -837,13 +832,11 @@ static void intel_i830_chipset_flush(struct agp_bridge_data *bridge) 


	memset(pg, 0, 1024);



	if (cpu_has_clflush) {

	if (cpu_has_clflush)

		clflush_cache_range(pg, 1024);

	} else {

		if (on_each_cpu(do_wbinvd, NULL, 1) != 0)

	else if (wbinvd_on_all_cpus() != 0)

		printk(KERN_ERR "Timed out waiting for cache flush.\n");

}

}



/* The intel i830 automatically initializes the agp aperture during POST.

 * Use the memory already set aside for in the GTT.

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