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[AGPGART] intel_agp: fix G965 GTT size detect

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On G965, I810_PGETBL_CTL is a mmio offset, but we wrongly take it
as pci config space offset in detecting GTT size. This one line patch
fixs this.

Signed-off-by: Wang Zhenyu <zhenyu.z.wang@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
This commit is contained in:
Wang Zhenyu 2007-04-10 09:42:48 +08:00 committed by Dave Jones
parent 4598af33d9
commit 52ea0718ea
1 changed files with 1 additions and 2 deletions
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3
drivers/char/agp/intel-agp.c
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@ -431,9 +431,8 @@ static void intel_i830_init_gtt_entries(void)
if (IS_I965) {
u32 pgetbl_ctl;
pgetbl_ctl = readl(intel_i830_private.registers+I810_PGETBL_CTL);
pci_read_config_dword(agp_bridge->dev, I810_PGETBL_CTL,
&pgetbl_ctl);
/* The 965 has a field telling us the size of the GTT,
* which may be larger than what is necessary to map the
* aperture.