Thread (7 messages) 7 messages, 2 authors, 2018-06-01

[PATCH] PCI: move early dump functionality from x86 arch into the common code

From: Andy Shevchenko <hidden>
Date: 2018-06-01 15:02:37
Also in: linux-arm-msm, linux-doc, linux-pci, lkml

On Wed, May 30, 2018 at 7:34 AM, Sinan Kaya [off-list ref] wrote:
Move early dump functionality into common code so that it is available for
all archtiectures. No need to carry arch specific reads around as the read
hooks are already initialized by the time pci_setup_device() is getting
called during scan.
 /* If set, the PCIe ATS capability will not be used. */
 static bool pcie_ats_disabled;

+bool pci_early_dump;
+
I didn't check above these, but maybe a good idea to add one line
comment what is this about?

 extern const unsigned char pcie_link_speed[];
-
+extern bool pci_early_dump;
 bool pcie_cap_has_lnkctl(const struct pci_dev *dev);
Hmm... I would rather not attach this line to some function declarations.
+static void early_dump_pci_device(struct pci_dev *pdev)
+{
+       u32 value[256 / 4];
+       int i;
+
+       dev_info(&pdev->dev, "pci 0000:%02x:%02x.%d config space:\n",
+                pdev->bus->number, PCI_SLOT(pdev->devfn),
+                PCI_FUNC(pdev->devfn));
Shouldn't be this changed to pci_info() ?
+
+       for (i = 0; i < 256; i += 4)
+               pci_read_config_dword(pdev, i, &value[i / 4]);
+
+       print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value,
+                      256, false);
+}
-- 
With Best Regards,
Andy Shevchenko
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