diff mbox series

[1/4] perf/dwc_pcie: Move common DWC struct definitions to 'pcie-dwc.h'

Message ID 20250218-pcie-qcom-ptm-v1-1-16d7e480d73e@linaro.org (mailing list archive)
State Changes Requested
Delegated to: Krzysztof Wilczyński
Headers show
Series PCI: dwc: Add PTM sysfs support | expand

Commit Message

Manivannan Sadhasivam via B4 Relay Feb. 18, 2025, 2:36 p.m. UTC 
From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

Since these are common to all Desginware PCIe IPs, move them to a new
header, 'pcie-dwc.h' so that other drivers could make use of them.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 MAINTAINERS                 |  1 +
 drivers/perf/dwc_pcie_pmu.c | 23 ++---------------------
 include/linux/pcie-dwc.h    | 34 ++++++++++++++++++++++++++++++++++
 3 files changed, 37 insertions(+), 21 deletions(-)

Comments

Dmitry Baryshkov Feb. 18, 2025, 4:31 p.m. UTC | #1 
On Tue, Feb 18, 2025 at 08:06:40PM +0530, Manivannan Sadhasivam via B4 Relay wrote:
> From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> 
> Since these are common to all Desginware PCIe IPs, move them to a new
> header, 'pcie-dwc.h' so that other drivers could make use of them.

Which drivers are going to use it? Please provide an explanation.

> 
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> ---
>  MAINTAINERS                 |  1 +
>  drivers/perf/dwc_pcie_pmu.c | 23 ++---------------------
>  include/linux/pcie-dwc.h    | 34 ++++++++++++++++++++++++++++++++++
>  3 files changed, 37 insertions(+), 21 deletions(-)
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 896a307fa065..b4d09d52a750 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -18123,6 +18123,7 @@ S:	Maintained
>  F:	Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml
>  F:	Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
>  F:	drivers/pci/controller/dwc/*designware*
> +F:	include/linux/pcie-dwc.h
>  
>  PCI DRIVER FOR TI DRA7XX/J721E
>  M:	Vignesh Raghavendra <vigneshr@ti.com>
> diff --git a/drivers/perf/dwc_pcie_pmu.c b/drivers/perf/dwc_pcie_pmu.c
> index cccecae9823f..05b37ea7cf16 100644
> --- a/drivers/perf/dwc_pcie_pmu.c
> +++ b/drivers/perf/dwc_pcie_pmu.c
> @@ -13,6 +13,7 @@
>  #include <linux/errno.h>
>  #include <linux/kernel.h>
>  #include <linux/list.h>
> +#include <linux/pcie-dwc.h>
>  #include <linux/perf_event.h>
>  #include <linux/pci.h>
>  #include <linux/platform_device.h>
> @@ -99,26 +100,6 @@ struct dwc_pcie_dev_info {
>  	struct list_head dev_node;
>  };
>  
> -struct dwc_pcie_pmu_vsec_id {
> -	u16 vendor_id;
> -	u16 vsec_id;
> -	u8 vsec_rev;
> -};
> -
> -/*
> - * VSEC IDs are allocated by the vendor, so a given ID may mean different
> - * things to different vendors.  See PCIe r6.0, sec 7.9.5.2.
> - */
> -static const struct dwc_pcie_pmu_vsec_id dwc_pcie_pmu_vsec_ids[] = {
> -	{ .vendor_id = PCI_VENDOR_ID_ALIBABA,
> -	  .vsec_id = 0x02, .vsec_rev = 0x4 },
> -	{ .vendor_id = PCI_VENDOR_ID_AMPERE,
> -	  .vsec_id = 0x02, .vsec_rev = 0x4 },
> -	{ .vendor_id = PCI_VENDOR_ID_QCOM,
> -	  .vsec_id = 0x02, .vsec_rev = 0x4 },
> -	{} /* terminator */
> -};
> -
>  static ssize_t cpumask_show(struct device *dev,
>  					 struct device_attribute *attr,
>  					 char *buf)
> @@ -529,7 +510,7 @@ static void dwc_pcie_unregister_pmu(void *data)
>  
>  static u16 dwc_pcie_des_cap(struct pci_dev *pdev)
>  {
> -	const struct dwc_pcie_pmu_vsec_id *vid;
> +	const struct dwc_pcie_vsec_id *vid;
>  	u16 vsec;
>  	u32 val;
>  
> diff --git a/include/linux/pcie-dwc.h b/include/linux/pcie-dwc.h
> new file mode 100644
> index 000000000000..261ae11d75a4
> --- /dev/null
> +++ b/include/linux/pcie-dwc.h
> @@ -0,0 +1,34 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (C) 2021-2023 Alibaba Inc.
> + *
> + * Copyright 2025 Linaro Ltd.
> + * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> + */
> +
> +#ifndef LINUX_PCIE_DWC_H
> +#define LINUX_PCIE_DWC_H
> +
> +#include <linux/pci_ids.h>
> +
> +struct dwc_pcie_vsec_id {
> +	u16 vendor_id;
> +	u16 vsec_id;
> +	u8 vsec_rev;
> +};
> +
> +/*
> + * VSEC IDs are allocated by the vendor, so a given ID may mean different
> + * things to different vendors.  See PCIe r6.0, sec 7.9.5.2.
> + */
> +static const struct dwc_pcie_vsec_id dwc_pcie_pmu_vsec_ids[] = {

Having it in the header means that there are going to be several
copies of this data. Is that expected?

> +	{ .vendor_id = PCI_VENDOR_ID_ALIBABA,
> +	  .vsec_id = 0x02, .vsec_rev = 0x4 },
> +	{ .vendor_id = PCI_VENDOR_ID_AMPERE,
> +	  .vsec_id = 0x02, .vsec_rev = 0x4 },
> +	{ .vendor_id = PCI_VENDOR_ID_QCOM,
> +	  .vsec_id = 0x02, .vsec_rev = 0x4 },
> +	{} /* terminator */
> +};
> +
> +#endif /* LINUX_PCIE_DWC_H */
> 
> -- 
> 2.25.1
> 
>
Manivannan Sadhasivam Feb. 19, 2025, 7:55 a.m. UTC | #2 
On Tue, Feb 18, 2025 at 06:31:02PM +0200, Dmitry Baryshkov wrote:
> On Tue, Feb 18, 2025 at 08:06:40PM +0530, Manivannan Sadhasivam via B4 Relay wrote:
> > From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> > 
> > Since these are common to all Desginware PCIe IPs, move them to a new
> > header, 'pcie-dwc.h' so that other drivers could make use of them.
> 
> Which drivers are going to use it? Please provide an explanation.
> 

I can certainly add reference as 'upcoming pcie-designware-sysfs' driver.

> > 
> > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> > ---
> >  MAINTAINERS                 |  1 +
> >  drivers/perf/dwc_pcie_pmu.c | 23 ++---------------------
> >  include/linux/pcie-dwc.h    | 34 ++++++++++++++++++++++++++++++++++
> >  3 files changed, 37 insertions(+), 21 deletions(-)
> > 
> > diff --git a/MAINTAINERS b/MAINTAINERS
> > index 896a307fa065..b4d09d52a750 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -18123,6 +18123,7 @@ S:	Maintained
> >  F:	Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml
> >  F:	Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
> >  F:	drivers/pci/controller/dwc/*designware*
> > +F:	include/linux/pcie-dwc.h
> >  
> >  PCI DRIVER FOR TI DRA7XX/J721E
> >  M:	Vignesh Raghavendra <vigneshr@ti.com>
> > diff --git a/drivers/perf/dwc_pcie_pmu.c b/drivers/perf/dwc_pcie_pmu.c
> > index cccecae9823f..05b37ea7cf16 100644
> > --- a/drivers/perf/dwc_pcie_pmu.c
> > +++ b/drivers/perf/dwc_pcie_pmu.c
> > @@ -13,6 +13,7 @@
> >  #include <linux/errno.h>
> >  #include <linux/kernel.h>
> >  #include <linux/list.h>
> > +#include <linux/pcie-dwc.h>
> >  #include <linux/perf_event.h>
> >  #include <linux/pci.h>
> >  #include <linux/platform_device.h>
> > @@ -99,26 +100,6 @@ struct dwc_pcie_dev_info {
> >  	struct list_head dev_node;
> >  };
> >  
> > -struct dwc_pcie_pmu_vsec_id {
> > -	u16 vendor_id;
> > -	u16 vsec_id;
> > -	u8 vsec_rev;
> > -};
> > -
> > -/*
> > - * VSEC IDs are allocated by the vendor, so a given ID may mean different
> > - * things to different vendors.  See PCIe r6.0, sec 7.9.5.2.
> > - */
> > -static const struct dwc_pcie_pmu_vsec_id dwc_pcie_pmu_vsec_ids[] = {
> > -	{ .vendor_id = PCI_VENDOR_ID_ALIBABA,
> > -	  .vsec_id = 0x02, .vsec_rev = 0x4 },
> > -	{ .vendor_id = PCI_VENDOR_ID_AMPERE,
> > -	  .vsec_id = 0x02, .vsec_rev = 0x4 },
> > -	{ .vendor_id = PCI_VENDOR_ID_QCOM,
> > -	  .vsec_id = 0x02, .vsec_rev = 0x4 },
> > -	{} /* terminator */
> > -};
> > -
> >  static ssize_t cpumask_show(struct device *dev,
> >  					 struct device_attribute *attr,
> >  					 char *buf)
> > @@ -529,7 +510,7 @@ static void dwc_pcie_unregister_pmu(void *data)
> >  
> >  static u16 dwc_pcie_des_cap(struct pci_dev *pdev)
> >  {
> > -	const struct dwc_pcie_pmu_vsec_id *vid;
> > +	const struct dwc_pcie_vsec_id *vid;
> >  	u16 vsec;
> >  	u32 val;
> >  
> > diff --git a/include/linux/pcie-dwc.h b/include/linux/pcie-dwc.h
> > new file mode 100644
> > index 000000000000..261ae11d75a4
> > --- /dev/null
> > +++ b/include/linux/pcie-dwc.h
> > @@ -0,0 +1,34 @@
> > +/* SPDX-License-Identifier: GPL-2.0 */
> > +/*
> > + * Copyright (C) 2021-2023 Alibaba Inc.
> > + *
> > + * Copyright 2025 Linaro Ltd.
> > + * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> > + */
> > +
> > +#ifndef LINUX_PCIE_DWC_H
> > +#define LINUX_PCIE_DWC_H
> > +
> > +#include <linux/pci_ids.h>
> > +
> > +struct dwc_pcie_vsec_id {
> > +	u16 vendor_id;
> > +	u16 vsec_id;
> > +	u8 vsec_rev;
> > +};
> > +
> > +/*
> > + * VSEC IDs are allocated by the vendor, so a given ID may mean different
> > + * things to different vendors.  See PCIe r6.0, sec 7.9.5.2.
> > + */
> > +static const struct dwc_pcie_vsec_id dwc_pcie_pmu_vsec_ids[] = {
> 
> Having it in the header means that there are going to be several
> copies of this data. Is that expected?
> 

Yes. I wanted to consolidate these ids in a single file to make it easy to track
them. Otherwise, these are spread across different subsystems, making it harder
to maintain.

- Mani
Shradha Todi Feb. 20, 2025, 6:01 a.m. UTC | #3 
> -----Original Message-----
> From: Manivannan Sadhasivam via B4 Relay <devnull+manivannan.sadhasivam.linaro.org@kernel.org>
> Sent: 18 February 2025 20:07
> To: Shuai Xue <xueshuai@linux.alibaba.com>; Jing Zhang <renyu.zj@linux.alibaba.com>; Will Deacon <will@kernel.org>; Mark Rutland
> <mark.rutland@arm.com>; Jingoo Han <jingoohan1@gmail.com>; Bjorn Helgaas <bhelgaas@google.com>; Lorenzo Pieralisi
> <lpieralisi@kernel.org>; Krzysztof Wilczyński <kw@linux.com>; Rob Herring <robh@kernel.org>
> Cc: Shradha Todi <shradha.t@samsung.com>; linux-kernel@vger.kernel.org; linux-arm-kernel@lists.infradead.org; linux-perf-
> users@vger.kernel.org; linux-pci@vger.kernel.org; linux-arm-msm@vger.kernel.org; Manivannan Sadhasivam
> <manivannan.sadhasivam@linaro.org>
> Subject: [PATCH 1/4] perf/dwc_pcie: Move common DWC struct definitions to 'pcie-dwc.h'
> 
> From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> 
> Since these are common to all Desginware PCIe IPs, move them to a new header, 'pcie-dwc.h' so that other drivers could make use of
> them.
> 
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> ---
>  MAINTAINERS                 |  1 +
>  drivers/perf/dwc_pcie_pmu.c | 23 ++---------------------
>  include/linux/pcie-dwc.h    | 34 ++++++++++++++++++++++++++++++++++
>  3 files changed, 37 insertions(+), 21 deletions(-)
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 896a307fa065..b4d09d52a750 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -18123,6 +18123,7 @@ S:	Maintained
>  F:	Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml
>  F:	Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
>  F:	drivers/pci/controller/dwc/*designware*
> +F:	include/linux/pcie-dwc.h
> 
>  PCI DRIVER FOR TI DRA7XX/J721E
>  M:	Vignesh Raghavendra <vigneshr@ti.com>
> diff --git a/drivers/perf/dwc_pcie_pmu.c b/drivers/perf/dwc_pcie_pmu.c index cccecae9823f..05b37ea7cf16 100644
> --- a/drivers/perf/dwc_pcie_pmu.c
> +++ b/drivers/perf/dwc_pcie_pmu.c
> @@ -13,6 +13,7 @@
>  #include <linux/errno.h>
>  #include <linux/kernel.h>
>  #include <linux/list.h>
> +#include <linux/pcie-dwc.h>
>  #include <linux/perf_event.h>
>  #include <linux/pci.h>
>  #include <linux/platform_device.h>
> @@ -99,26 +100,6 @@ struct dwc_pcie_dev_info {
>  	struct list_head dev_node;
>  };
> 
> -struct dwc_pcie_pmu_vsec_id {
> -	u16 vendor_id;
> -	u16 vsec_id;
> -	u8 vsec_rev;
> -};
> -
> -/*
> - * VSEC IDs are allocated by the vendor, so a given ID may mean different
> - * things to different vendors.  See PCIe r6.0, sec 7.9.5.2.
> - */
> -static const struct dwc_pcie_pmu_vsec_id dwc_pcie_pmu_vsec_ids[] = {
> -	{ .vendor_id = PCI_VENDOR_ID_ALIBABA,
> -	  .vsec_id = 0x02, .vsec_rev = 0x4 },
> -	{ .vendor_id = PCI_VENDOR_ID_AMPERE,
> -	  .vsec_id = 0x02, .vsec_rev = 0x4 },
> -	{ .vendor_id = PCI_VENDOR_ID_QCOM,
> -	  .vsec_id = 0x02, .vsec_rev = 0x4 },
> -	{} /* terminator */
> -};
> -
>  static ssize_t cpumask_show(struct device *dev,
>  					 struct device_attribute *attr,
>  					 char *buf)
> @@ -529,7 +510,7 @@ static void dwc_pcie_unregister_pmu(void *data)
> 
>  static u16 dwc_pcie_des_cap(struct pci_dev *pdev)  {
> -	const struct dwc_pcie_pmu_vsec_id *vid;
> +	const struct dwc_pcie_vsec_id *vid;
>  	u16 vsec;
>  	u32 val;
> 
> diff --git a/include/linux/pcie-dwc.h b/include/linux/pcie-dwc.h new file mode 100644 index 000000000000..261ae11d75a4
> --- /dev/null
> +++ b/include/linux/pcie-dwc.h
> @@ -0,0 +1,34 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (C) 2021-2023 Alibaba Inc.
> + *
> + * Copyright 2025 Linaro Ltd.
> + * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> + */
> +
> +#ifndef LINUX_PCIE_DWC_H
> +#define LINUX_PCIE_DWC_H
> +
> +#include <linux/pci_ids.h>
> +
> +struct dwc_pcie_vsec_id {
> +	u16 vendor_id;
> +	u16 vsec_id;
> +	u8 vsec_rev;
> +};
> +
> +/*
> + * VSEC IDs are allocated by the vendor, so a given ID may mean
> +different
> + * things to different vendors.  See PCIe r6.0, sec 7.9.5.2.
> + */
> +static const struct dwc_pcie_vsec_id dwc_pcie_pmu_vsec_ids[] = {

Rename this to dwc_pcie_rasdes_vsec_ids? pmu was perf file specific but technically the vsec is rasdes.

> +	{ .vendor_id = PCI_VENDOR_ID_ALIBABA,
> +	  .vsec_id = 0x02, .vsec_rev = 0x4 },
> +	{ .vendor_id = PCI_VENDOR_ID_AMPERE,
> +	  .vsec_id = 0x02, .vsec_rev = 0x4 },
> +	{ .vendor_id = PCI_VENDOR_ID_QCOM,
> +	  .vsec_id = 0x02, .vsec_rev = 0x4 },
> +	{} /* terminator */
> +};
> +
> +#endif /* LINUX_PCIE_DWC_H */
> 
> --
> 2.25.1
>
Manivannan Sadhasivam Feb. 20, 2025, 7:27 a.m. UTC | #4 
On Thu, Feb 20, 2025 at 11:31:49AM +0530, Shradha Todi wrote:
> 
> 
> > -----Original Message-----
> > From: Manivannan Sadhasivam via B4 Relay <devnull+manivannan.sadhasivam.linaro.org@kernel.org>
> > Sent: 18 February 2025 20:07
> > To: Shuai Xue <xueshuai@linux.alibaba.com>; Jing Zhang <renyu.zj@linux.alibaba.com>; Will Deacon <will@kernel.org>; Mark Rutland
> > <mark.rutland@arm.com>; Jingoo Han <jingoohan1@gmail.com>; Bjorn Helgaas <bhelgaas@google.com>; Lorenzo Pieralisi
> > <lpieralisi@kernel.org>; Krzysztof Wilczyński <kw@linux.com>; Rob Herring <robh@kernel.org>
> > Cc: Shradha Todi <shradha.t@samsung.com>; linux-kernel@vger.kernel.org; linux-arm-kernel@lists.infradead.org; linux-perf-
> > users@vger.kernel.org; linux-pci@vger.kernel.org; linux-arm-msm@vger.kernel.org; Manivannan Sadhasivam
> > <manivannan.sadhasivam@linaro.org>
> > Subject: [PATCH 1/4] perf/dwc_pcie: Move common DWC struct definitions to 'pcie-dwc.h'
> > 
> > From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> > 
> > Since these are common to all Desginware PCIe IPs, move them to a new header, 'pcie-dwc.h' so that other drivers could make use of
> > them.
> > 
> > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> > ---
> >  MAINTAINERS                 |  1 +
> >  drivers/perf/dwc_pcie_pmu.c | 23 ++---------------------
> >  include/linux/pcie-dwc.h    | 34 ++++++++++++++++++++++++++++++++++
> >  3 files changed, 37 insertions(+), 21 deletions(-)
> > 
> > diff --git a/MAINTAINERS b/MAINTAINERS
> > index 896a307fa065..b4d09d52a750 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -18123,6 +18123,7 @@ S:	Maintained
> >  F:	Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml
> >  F:	Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
> >  F:	drivers/pci/controller/dwc/*designware*
> > +F:	include/linux/pcie-dwc.h
> > 
> >  PCI DRIVER FOR TI DRA7XX/J721E
> >  M:	Vignesh Raghavendra <vigneshr@ti.com>
> > diff --git a/drivers/perf/dwc_pcie_pmu.c b/drivers/perf/dwc_pcie_pmu.c index cccecae9823f..05b37ea7cf16 100644
> > --- a/drivers/perf/dwc_pcie_pmu.c
> > +++ b/drivers/perf/dwc_pcie_pmu.c
> > @@ -13,6 +13,7 @@
> >  #include <linux/errno.h>
> >  #include <linux/kernel.h>
> >  #include <linux/list.h>
> > +#include <linux/pcie-dwc.h>
> >  #include <linux/perf_event.h>
> >  #include <linux/pci.h>
> >  #include <linux/platform_device.h>
> > @@ -99,26 +100,6 @@ struct dwc_pcie_dev_info {
> >  	struct list_head dev_node;
> >  };
> > 
> > -struct dwc_pcie_pmu_vsec_id {
> > -	u16 vendor_id;
> > -	u16 vsec_id;
> > -	u8 vsec_rev;
> > -};
> > -
> > -/*
> > - * VSEC IDs are allocated by the vendor, so a given ID may mean different
> > - * things to different vendors.  See PCIe r6.0, sec 7.9.5.2.
> > - */
> > -static const struct dwc_pcie_pmu_vsec_id dwc_pcie_pmu_vsec_ids[] = {
> > -	{ .vendor_id = PCI_VENDOR_ID_ALIBABA,
> > -	  .vsec_id = 0x02, .vsec_rev = 0x4 },
> > -	{ .vendor_id = PCI_VENDOR_ID_AMPERE,
> > -	  .vsec_id = 0x02, .vsec_rev = 0x4 },
> > -	{ .vendor_id = PCI_VENDOR_ID_QCOM,
> > -	  .vsec_id = 0x02, .vsec_rev = 0x4 },
> > -	{} /* terminator */
> > -};
> > -
> >  static ssize_t cpumask_show(struct device *dev,
> >  					 struct device_attribute *attr,
> >  					 char *buf)
> > @@ -529,7 +510,7 @@ static void dwc_pcie_unregister_pmu(void *data)
> > 
> >  static u16 dwc_pcie_des_cap(struct pci_dev *pdev)  {
> > -	const struct dwc_pcie_pmu_vsec_id *vid;
> > +	const struct dwc_pcie_vsec_id *vid;
> >  	u16 vsec;
> >  	u32 val;
> > 
> > diff --git a/include/linux/pcie-dwc.h b/include/linux/pcie-dwc.h new file mode 100644 index 000000000000..261ae11d75a4
> > --- /dev/null
> > +++ b/include/linux/pcie-dwc.h
> > @@ -0,0 +1,34 @@
> > +/* SPDX-License-Identifier: GPL-2.0 */
> > +/*
> > + * Copyright (C) 2021-2023 Alibaba Inc.
> > + *
> > + * Copyright 2025 Linaro Ltd.
> > + * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> > + */
> > +
> > +#ifndef LINUX_PCIE_DWC_H
> > +#define LINUX_PCIE_DWC_H
> > +
> > +#include <linux/pci_ids.h>
> > +
> > +struct dwc_pcie_vsec_id {
> > +	u16 vendor_id;
> > +	u16 vsec_id;
> > +	u8 vsec_rev;
> > +};
> > +
> > +/*
> > + * VSEC IDs are allocated by the vendor, so a given ID may mean
> > +different
> > + * things to different vendors.  See PCIe r6.0, sec 7.9.5.2.
> > + */
> > +static const struct dwc_pcie_vsec_id dwc_pcie_pmu_vsec_ids[] = {
> 
> Rename this to dwc_pcie_rasdes_vsec_ids? pmu was perf file specific but technically the vsec is rasdes.
> 

Sure.

- Mani
diff mbox series

Patch

diff --git a/MAINTAINERS b/MAINTAINERS
index 896a307fa065..b4d09d52a750 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -18123,6 +18123,7 @@  S:	Maintained
 F:	Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml
 F:	Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
 F:	drivers/pci/controller/dwc/*designware*
+F:	include/linux/pcie-dwc.h
 
 PCI DRIVER FOR TI DRA7XX/J721E
 M:	Vignesh Raghavendra <vigneshr@ti.com>
diff --git a/drivers/perf/dwc_pcie_pmu.c b/drivers/perf/dwc_pcie_pmu.c
index cccecae9823f..05b37ea7cf16 100644
--- a/drivers/perf/dwc_pcie_pmu.c
+++ b/drivers/perf/dwc_pcie_pmu.c
@@ -13,6 +13,7 @@ 
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/list.h>
+#include <linux/pcie-dwc.h>
 #include <linux/perf_event.h>
 #include <linux/pci.h>
 #include <linux/platform_device.h>
@@ -99,26 +100,6 @@  struct dwc_pcie_dev_info {
 	struct list_head dev_node;
 };
 
-struct dwc_pcie_pmu_vsec_id {
-	u16 vendor_id;
-	u16 vsec_id;
-	u8 vsec_rev;
-};
-
-/*
- * VSEC IDs are allocated by the vendor, so a given ID may mean different
- * things to different vendors.  See PCIe r6.0, sec 7.9.5.2.
- */
-static const struct dwc_pcie_pmu_vsec_id dwc_pcie_pmu_vsec_ids[] = {
-	{ .vendor_id = PCI_VENDOR_ID_ALIBABA,
-	  .vsec_id = 0x02, .vsec_rev = 0x4 },
-	{ .vendor_id = PCI_VENDOR_ID_AMPERE,
-	  .vsec_id = 0x02, .vsec_rev = 0x4 },
-	{ .vendor_id = PCI_VENDOR_ID_QCOM,
-	  .vsec_id = 0x02, .vsec_rev = 0x4 },
-	{} /* terminator */
-};
-
 static ssize_t cpumask_show(struct device *dev,
 					 struct device_attribute *attr,
 					 char *buf)
@@ -529,7 +510,7 @@  static void dwc_pcie_unregister_pmu(void *data)
 
 static u16 dwc_pcie_des_cap(struct pci_dev *pdev)
 {
-	const struct dwc_pcie_pmu_vsec_id *vid;
+	const struct dwc_pcie_vsec_id *vid;
 	u16 vsec;
 	u32 val;
 
diff --git a/include/linux/pcie-dwc.h b/include/linux/pcie-dwc.h
new file mode 100644
index 000000000000..261ae11d75a4
--- /dev/null
+++ b/include/linux/pcie-dwc.h
@@ -0,0 +1,34 @@ 
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2021-2023 Alibaba Inc.
+ *
+ * Copyright 2025 Linaro Ltd.
+ * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+ */
+
+#ifndef LINUX_PCIE_DWC_H
+#define LINUX_PCIE_DWC_H
+
+#include <linux/pci_ids.h>
+
+struct dwc_pcie_vsec_id {
+	u16 vendor_id;
+	u16 vsec_id;
+	u8 vsec_rev;
+};
+
+/*
+ * VSEC IDs are allocated by the vendor, so a given ID may mean different
+ * things to different vendors.  See PCIe r6.0, sec 7.9.5.2.
+ */
+static const struct dwc_pcie_vsec_id dwc_pcie_pmu_vsec_ids[] = {
+	{ .vendor_id = PCI_VENDOR_ID_ALIBABA,
+	  .vsec_id = 0x02, .vsec_rev = 0x4 },
+	{ .vendor_id = PCI_VENDOR_ID_AMPERE,
+	  .vsec_id = 0x02, .vsec_rev = 0x4 },
+	{ .vendor_id = PCI_VENDOR_ID_QCOM,
+	  .vsec_id = 0x02, .vsec_rev = 0x4 },
+	{} /* terminator */
+};
+
+#endif /* LINUX_PCIE_DWC_H */