From: Krishna chaitanya chundru <quic_krichai@quicinc.com>
To: "Bjorn Andersson" <andersson@kernel.org>,
"Konrad Dybcio" <konrad.dybcio@linaro.org>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Bjorn Helgaas" <bhelgaas@google.com>,
johan+linaro@kernel.org, bmasney@redhat.com, djakov@kernel.org
Cc: <linux-arm-msm@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <linux-pci@vger.kernel.org>,
<vireshk@kernel.org>, <quic_vbadigan@quicinc.com>,
<quic_skananth@quicinc.com>, <quic_nitegupt@quicinc.com>,
<quic_parass@quicinc.com>, <quic_krichai@quicinc.com>,
<krzysztof.kozlowski@linaro.org>
Subject: [PATCH v12 5/6] PCI: Bring the PCIe speed to MBps logic to new pcie_link_speed_to_mbps()
Date: Sat, 27 Apr 2024 07:22:38 +0530 [thread overview]
Message-ID: <20240427-opp_support-v12-5-f6beb0a1f2fc@quicinc.com> (raw)
In-Reply-To: <20240427-opp_support-v12-0-f6beb0a1f2fc@quicinc.com>
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.
Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
---
drivers/pci/pci.c | 19 +------------------
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 e5f243dd4288..40487b86a75e 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -5922,24 +5922,7 @@ 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_link_speed_to_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 17fed1846847..4de10087523e 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_link_speed_to_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);
--
2.42.0
next prev parent reply other threads:[~2024-04-27 1:54 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-27 1:52 [PATCH v12 0/6] PCI: qcom: Add support for OPP Krishna chaitanya chundru
2024-04-27 1:52 ` [PATCH v12 1/6] arm64: dts: qcom: sm8450: Add interconnect path to PCIe node Krishna chaitanya chundru
2024-04-27 1:52 ` [PATCH v12 2/6] PCI: qcom: Add ICC bandwidth vote for CPU to PCIe path Krishna chaitanya chundru
2024-04-30 5:21 ` Manivannan Sadhasivam
2024-04-27 1:52 ` [PATCH v12 3/6] dt-bindings: pci: qcom: Add OPP table Krishna chaitanya chundru
2024-04-27 1:52 ` [PATCH v12 4/6] arm64: dts: qcom: sm8450: Add OPP table support to PCIe Krishna chaitanya chundru
2024-04-27 1:52 ` Krishna chaitanya chundru [this message]
2024-04-27 1:52 ` [PATCH v12 6/6] PCI: qcom: Add OPP support to scale performance Krishna chaitanya chundru
2024-04-30 5:26 ` Manivannan Sadhasivam
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240427-opp_support-v12-5-f6beb0a1f2fc@quicinc.com \
--to=quic_krichai@quicinc.com \
--cc=andersson@kernel.org \
--cc=bhelgaas@google.com \
--cc=bmasney@redhat.com \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=djakov@kernel.org \
--cc=johan+linaro@kernel.org \
--cc=konrad.dybcio@linaro.org \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=krzysztof.kozlowski@linaro.org \
--cc=kw@linux.com \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=lpieralisi@kernel.org \
--cc=manivannan.sadhasivam@linaro.org \
--cc=quic_nitegupt@quicinc.com \
--cc=quic_parass@quicinc.com \
--cc=quic_skananth@quicinc.com \
--cc=quic_vbadigan@quicinc.com \
--cc=robh@kernel.org \
--cc=vireshk@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).