diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2023-12-04 17:53:32 -0600 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2023-12-15 17:28:43 -0600 |
| commit | 63c6ebb294b7c708cc987d621e59499686650683 (patch) | |
| tree | 45e53d213ab6aaa01bbc354a9f1d799ed25978a0 /drivers/pci/probe.c | |
| parent | 281e1f137a97dae4fe47a7d30635c5b83def790b (diff) | |
| download | linux-63c6ebb294b7c708cc987d621e59499686650683.tar.gz | |
PCI: Log bridge windows conditionally
Previously pci_read_bridge_io(), pci_read_bridge_mmio(), and
pci_read_bridge_mmio_pref() unconditionally logged the bridge window
resource. A future change will call these functions earlier and more
often. Add a "log" parameter so callers can control whether to generate
the log message. No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/probe.c')
| -rw-r--r-- | drivers/pci/probe.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index b0b8ed7a72f3f..3d39a47846b4c 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -344,7 +344,8 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom) } } -static void pci_read_bridge_io(struct pci_dev *dev, struct resource *res) +static void pci_read_bridge_io(struct pci_dev *dev, struct resource *res, + bool log) { u8 io_base_lo, io_limit_lo; unsigned long io_mask, io_granularity, base, limit; @@ -377,11 +378,13 @@ static void pci_read_bridge_io(struct pci_dev *dev, struct resource *res) region.start = base; region.end = limit + io_granularity - 1; pcibios_bus_to_resource(dev->bus, res, ®ion); - pci_info(dev, " bridge window %pR\n", res); + if (log) + pci_info(dev, " bridge window %pR\n", res); } } -static void pci_read_bridge_mmio(struct pci_dev *dev, struct resource *res) +static void pci_read_bridge_mmio(struct pci_dev *dev, struct resource *res, + bool log) { u16 mem_base_lo, mem_limit_lo; unsigned long base, limit; @@ -396,11 +399,13 @@ static void pci_read_bridge_mmio(struct pci_dev *dev, struct resource *res) region.start = base; region.end = limit + 0xfffff; pcibios_bus_to_resource(dev->bus, res, ®ion); - pci_info(dev, " bridge window %pR\n", res); + if (log) + pci_info(dev, " bridge window %pR\n", res); } } -static void pci_read_bridge_mmio_pref(struct pci_dev *dev, struct resource *res) +static void pci_read_bridge_mmio_pref(struct pci_dev *dev, struct resource *res, + bool log) { u16 mem_base_lo, mem_limit_lo; u64 base64, limit64; @@ -446,7 +451,8 @@ static void pci_read_bridge_mmio_pref(struct pci_dev *dev, struct resource *res) region.start = base; region.end = limit + 0xfffff; pcibios_bus_to_resource(dev->bus, res, ®ion); - pci_info(dev, " bridge window %pR\n", res); + if (log) + pci_info(dev, " bridge window %pR\n", res); } } @@ -518,9 +524,9 @@ void pci_read_bridge_bases(struct pci_bus *child) for (i = 0; i < PCI_BRIDGE_RESOURCE_NUM; i++) child->resource[i] = &dev->resource[PCI_BRIDGE_RESOURCES+i]; - pci_read_bridge_io(child->self, child->resource[0]); - pci_read_bridge_mmio(child->self, child->resource[1]); - pci_read_bridge_mmio_pref(child->self, child->resource[2]); + pci_read_bridge_io(child->self, child->resource[0], true); + pci_read_bridge_mmio(child->self, child->resource[1], true); + pci_read_bridge_mmio_pref(child->self, child->resource[2], true); if (dev->transparent) { pci_bus_for_each_resource(child->parent, res) { |