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| author |   Krishna chaitanya chundru <quic_krichai@quicinc.com> | 2024-06-19 20:41:12 +0530 |
|---|---|---|
| committer |   Bjorn Helgaas <bhelgaas@google.com> | 2024-07-09 16:56:36 -0500 |
| commit | 100ae5d77f07f9f046106e228778c7aa1c6d3af3 (patch) | |
| tree | 8f2f8f8ffcfd45b7149b08ef778eff576170e87b | |
| parent | PCI: qcom: Add ICC bandwidth vote for CPU to PCIe path (diff) | |
| download | wireguard-linux-100ae5d77f07f9f046106e228778c7aa1c6d3af3.tar.xz wireguard-linux-100ae5d77f07f9f046106e228778c7aa1c6d3af3.zip | |
PCI: Bring the PCIe speed to MBps logic to new pcie_dev_speed_mbps()
Bring the switch case in pcie_link_speed_mbps() to new function to
the header file so that it can be used in other places like
in controller driver.
Link: https://lore.kernel.org/linux-pci/20240619-opp_support-v15-3-aa769a2173a3@quicinc.com
Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Diffstat (limited to '')
| -rw-r--r-- | drivers/pci/pci.c | 19 | ||||
| -rw-r--r-- | drivers/pci/pci.h | 22 |
2 files changed, 23 insertions, 18 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 59e0949fb079..ac28b5d34648 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -6020,24 +6020,7 @@ int pcie_link_speed_mbps(struct pci_dev *pdev) if (err) return err; - switch (to_pcie_link_speed(lnksta)) { - case PCIE_SPEED_2_5GT: - return 2500; - case PCIE_SPEED_5_0GT: - return 5000; - case PCIE_SPEED_8_0GT: - return 8000; - case PCIE_SPEED_16_0GT: - return 16000; - case PCIE_SPEED_32_0GT: - return 32000; - case PCIE_SPEED_64_0GT: - return 64000; - default: - break; - } - - return -EINVAL; + return pcie_dev_speed_mbps(to_pcie_link_speed(lnksta)); } EXPORT_SYMBOL(pcie_link_speed_mbps); diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index fd44565c4756..7e766dcba8fb 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -290,6 +290,28 @@ void pci_bus_put(struct pci_bus *bus); (speed) == PCIE_SPEED_2_5GT ? 2500*8/10 : \ 0) +static inline int pcie_dev_speed_mbps(enum pci_bus_speed speed) +{ + switch (speed) { + case PCIE_SPEED_2_5GT: + return 2500; + case PCIE_SPEED_5_0GT: + return 5000; + case PCIE_SPEED_8_0GT: + return 8000; + case PCIE_SPEED_16_0GT: + return 16000; + case PCIE_SPEED_32_0GT: + return 32000; + case PCIE_SPEED_64_0GT: + return 64000; + default: + break; + } + + return -EINVAL; +} + const char *pci_speed_string(enum pci_bus_speed speed); enum pci_bus_speed pcie_get_speed_cap(struct pci_dev *dev); enum pcie_link_width pcie_get_width_cap(struct pci_dev *dev); |