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| author | Pavel Machek <pavel@ucw.cz> | 2008-05-20 18:27:17 +0400 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2008-05-22 13:35:14 +0400 |
| commit | 0abbc78a0137fee60ef092f0b20a3d3d7e7e0cc2 (patch) | |
| tree | 861c8de86a39a9c3235f949dcad01ba96cfb18c6 /drivers/char/agp/amd64-agp.c | |
| parent | 538f0fd0f210c2ce5c585799f18d0e5c7cf6155e (diff) | |
| download | linux-0abbc78a0137fee60ef092f0b20a3d3d7e7e0cc2.tar.xz | |
x86, aperture_64: use symbolic constants
Factor-out common aperture_valid code.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/char/agp/amd64-agp.c')
| -rw-r--r-- | drivers/char/agp/amd64-agp.c | 22 |
1 files changed, 4 insertions, 18 deletions
diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c index e3c7ea07f57c..f5af65ac8c78 100644 --- a/drivers/char/agp/amd64-agp.c +++ b/drivers/char/agp/amd64-agp.c @@ -228,24 +228,10 @@ static const struct agp_bridge_driver amd_8151_driver = { }; /* Some basic sanity checks for the aperture. */ -static int __devinit aperture_valid(u64 aper, u32 size) +static int __devinit agp_aperture_valid(u64 aper, u32 size) { - if (aper == 0) { - printk(KERN_ERR PFX "No aperture\n"); + if (!aperture_valid(aper, size, 32*1024*1024)) return 0; - } - if ((u64)aper + size > 0x100000000ULL) { - printk(KERN_ERR PFX "Aperture out of bounds\n"); - return 0; - } - if (e820_any_mapped(aper, aper + size, E820_RAM)) { - printk(KERN_ERR PFX "Aperture pointing to RAM\n"); - return 0; - } - if (size < 32*1024*1024) { - printk(KERN_ERR PFX "Aperture too small (%d MB)\n", size>>20); - return 0; - } /* Request the Aperture. This catches cases when someone else already put a mapping in there - happens with some very broken BIOS @@ -282,7 +268,7 @@ static __devinit int fix_northbridge(struct pci_dev *nb, struct pci_dev *agp, nb_order = (nb_order >> 1) & 7; pci_read_config_dword(nb, AMD64_GARTAPERTUREBASE, &nb_base); nb_aper = nb_base << 25; - if (aperture_valid(nb_aper, (32*1024*1024)<<nb_order)) { + if (agp_aperture_valid(nb_aper, (32*1024*1024)<<nb_order)) { return 0; } @@ -313,7 +299,7 @@ static __devinit int fix_northbridge(struct pci_dev *nb, struct pci_dev *agp, } printk(KERN_INFO PFX "Aperture from AGP @ %Lx size %u MB\n", aper, 32 << order); - if (order < 0 || !aperture_valid(aper, (32*1024*1024)<<order)) + if (order < 0 || !agp_aperture_valid(aper, (32*1024*1024)<<order)) return -1; pci_write_config_dword(nb, AMD64_GARTAPERTURECTL, order << 1); |