From: Wang Zhenyu Date: Thu, 21 Jun 2007 05:43:18 +0000 (+0800) Subject: [AGPGART] intel_agp: don't load if no IGD and AGP port X-Git-Tag: v2.6.22-rc6~41^2 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=47d46379eb66278107947729e34a833c76dca252;p=linux-2.6 [AGPGART] intel_agp: don't load if no IGD and AGP port After i915 chip, GMCH has no AGP port. Origin bridge driver in device table will try to access illegal regs like APBASE, APSIZE, etc. This may cause problem. So mark them as NULL in the table, we won't load if no IGD got detect and bridge has no AGP port. Signed-off-by: Wang Zhenyu Signed-off-by: Dave Jones --- diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c index 0439ee951a..a124060391 100644 --- a/drivers/char/agp/intel-agp.c +++ b/drivers/char/agp/intel-agp.c @@ -1843,35 +1843,35 @@ static const struct intel_driver_description { &intel_845_driver, &intel_830_driver }, { PCI_DEVICE_ID_INTEL_82875_HB, 0, 0, "i875", &intel_845_driver, NULL }, { PCI_DEVICE_ID_INTEL_82915G_HB, PCI_DEVICE_ID_INTEL_82915G_IG, 0, "915G", - &intel_845_driver, &intel_915_driver }, + NULL, &intel_915_driver }, { PCI_DEVICE_ID_INTEL_82915GM_HB, PCI_DEVICE_ID_INTEL_82915GM_IG, 0, "915GM", - &intel_845_driver, &intel_915_driver }, + NULL, &intel_915_driver }, { PCI_DEVICE_ID_INTEL_82945G_HB, PCI_DEVICE_ID_INTEL_82945G_IG, 0, "945G", - &intel_845_driver, &intel_915_driver }, + NULL, &intel_915_driver }, { PCI_DEVICE_ID_INTEL_82945GM_HB, PCI_DEVICE_ID_INTEL_82945GM_IG, 1, "945GM", - &intel_845_driver, &intel_915_driver }, + NULL, &intel_915_driver }, { PCI_DEVICE_ID_INTEL_82945GM_HB, PCI_DEVICE_ID_INTEL_82945GME_IG, 0, "945GME", - &intel_845_driver, &intel_915_driver }, + NULL, &intel_915_driver }, { PCI_DEVICE_ID_INTEL_82946GZ_HB, PCI_DEVICE_ID_INTEL_82946GZ_IG, 0, "946GZ", - &intel_845_driver, &intel_i965_driver }, + NULL, &intel_i965_driver }, { PCI_DEVICE_ID_INTEL_82965G_1_HB, PCI_DEVICE_ID_INTEL_82965G_1_IG, 0, "965G", - &intel_845_driver, &intel_i965_driver }, + NULL, &intel_i965_driver }, { PCI_DEVICE_ID_INTEL_82965Q_HB, PCI_DEVICE_ID_INTEL_82965Q_IG, 0, "965Q", - &intel_845_driver, &intel_i965_driver }, + NULL, &intel_i965_driver }, { PCI_DEVICE_ID_INTEL_82965G_HB, PCI_DEVICE_ID_INTEL_82965G_IG, 0, "965G", - &intel_845_driver, &intel_i965_driver }, + NULL, &intel_i965_driver }, { PCI_DEVICE_ID_INTEL_82965GM_HB, PCI_DEVICE_ID_INTEL_82965GM_IG, 1, "965GM", - &intel_845_driver, &intel_i965_driver }, + NULL, &intel_i965_driver }, { PCI_DEVICE_ID_INTEL_82965GM_HB, PCI_DEVICE_ID_INTEL_82965GME_IG, 0, "965GME/GLE", - &intel_845_driver, &intel_i965_driver }, + NULL, &intel_i965_driver }, { PCI_DEVICE_ID_INTEL_7505_0, 0, 0, "E7505", &intel_7505_driver, NULL }, { PCI_DEVICE_ID_INTEL_7205_0, 0, 0, "E7205", &intel_7505_driver, NULL }, { PCI_DEVICE_ID_INTEL_G33_HB, PCI_DEVICE_ID_INTEL_G33_IG, 0, "G33", - &intel_845_driver, &intel_g33_driver }, + NULL, &intel_g33_driver }, { PCI_DEVICE_ID_INTEL_Q35_HB, PCI_DEVICE_ID_INTEL_Q35_IG, 0, "Q35", - &intel_845_driver, &intel_g33_driver }, + NULL, &intel_g33_driver }, { PCI_DEVICE_ID_INTEL_Q33_HB, PCI_DEVICE_ID_INTEL_Q33_IG, 0, "Q33", - &intel_845_driver, &intel_g33_driver }, + NULL, &intel_g33_driver }, { 0, 0, 0, NULL, NULL, NULL } }; @@ -1917,8 +1917,11 @@ static int __devinit agp_intel_probe(struct pci_dev *pdev, } if (bridge->driver == NULL) { - printk(KERN_WARNING PFX "Failed to find bridge device " - "(chip_id: %04x)\n", intel_agp_chipsets[i].gmch_chip_id); + /* bridge has no AGP and no IGD detected */ + if (cap_ptr) + printk(KERN_WARNING PFX "Failed to find bridge device " + "(chip_id: %04x)\n", + intel_agp_chipsets[i].gmch_chip_id); agp_put_bridge(bridge); return -ENODEV; }