Messages in this thread Patch in this message | | | Subject | [PATCH 1/2] pci: Arch hook to determine config space size | From | brking@us ... | Date | Fri, 28 Jan 2005 08:56:17 -0600 |
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When working with a PCI-X Mode 2 adapter on a PCI-X Mode 1 PPC64 system, the current code used to determine the config space size of a device results in a PCI Master abort and an EEH error, resulting in the device being taken offline. This patch adds the ability for arch specific code to override part of the config space size determination to fix this.
Signed-off-by: Brian King <brking@us.ibm.com> ---
linux-2.6.11-rc2-bk5-bjking1/drivers/pci/probe.c | 4 ++++ 1 files changed, 4 insertions(+)
diff -puN drivers/pci/probe.c~pci_arch_cfg_space_size drivers/pci/probe.c --- linux-2.6.11-rc2-bk5/drivers/pci/probe.c~pci_arch_cfg_space_size 2005-01-27 16:56:46.000000000 -0600 +++ linux-2.6.11-rc2-bk5-bjking1/drivers/pci/probe.c 2005-01-27 16:56:46.000000000 -0600 @@ -627,6 +627,8 @@ static void pci_release_dev(struct devic kfree(pci_dev); } +int __attribute__ ((weak)) pcibios_exp_cfg_space(struct pci_dev *dev) { return 1; } + /** * pci_cfg_space_size - get the configuration space size of the PCI device. * @@ -653,6 +655,8 @@ static int pci_cfg_space_size(struct pci goto fail; } + if (!pcibios_exp_cfg_space(dev)) + goto fail; if (pci_read_config_dword(dev, 256, &status) != PCIBIOS_SUCCESSFUL) goto fail; if (status == 0xffffffff) _ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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