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Commit cfa4d8cc authored by Alex Williamson's avatar Alex Williamson Committed by Jesse Barnes
Browse files

PCI: Fix PRI and PASID consistency 



These are extended capabilities, rename and move to proper
group for consistency.

Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
parent da8d1c8b

drivers/pci/ats.c

+10 −10
Original line number Diff line number Diff line
@@ -175,7 +175,7 @@ int pci_enable_pri(struct pci_dev *pdev, u32 reqs) 
	u32 max_requests;

	int pos;



	pos = pci_find_ext_capability(pdev, PCI_PRI_CAP);

	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);

	if (!pos)

		return -EINVAL;
@@ -206,7 +206,7 @@ void pci_disable_pri(struct pci_dev *pdev) 
	u16 control;

	int pos;



	pos = pci_find_ext_capability(pdev, PCI_PRI_CAP);

	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);

	if (!pos)

		return;
@@ -227,7 +227,7 @@ bool pci_pri_enabled(struct pci_dev *pdev) 
	u16 control;

	int pos;



	pos = pci_find_ext_capability(pdev, PCI_PRI_CAP);

	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);

	if (!pos)

		return false;
@@ -249,7 +249,7 @@ int pci_reset_pri(struct pci_dev *pdev) 
	u16 control;

	int pos;



	pos = pci_find_ext_capability(pdev, PCI_PRI_CAP);

	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);

	if (!pos)

		return -EINVAL;
@@ -282,7 +282,7 @@ bool pci_pri_stopped(struct pci_dev *pdev) 
	u16 control, status;

	int pos;



	pos = pci_find_ext_capability(pdev, PCI_PRI_CAP);

	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);

	if (!pos)

		return true;
@@ -311,7 +311,7 @@ int pci_pri_status(struct pci_dev *pdev) 
	u16 status, control;

	int pos;



	pos = pci_find_ext_capability(pdev, PCI_PRI_CAP);

	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);

	if (!pos)

		return -EINVAL;
@@ -342,7 +342,7 @@ int pci_enable_pasid(struct pci_dev *pdev, int features) 
	u16 control, supported;

	int pos;



	pos = pci_find_ext_capability(pdev, PCI_PASID_CAP);

	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PASID);

	if (!pos)

		return -EINVAL;
@@ -376,7 +376,7 @@ void pci_disable_pasid(struct pci_dev *pdev) 
	u16 control = 0;

	int pos;



	pos = pci_find_ext_capability(pdev, PCI_PASID_CAP);

	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PASID);

	if (!pos)

		return;
@@ -400,7 +400,7 @@ int pci_pasid_features(struct pci_dev *pdev) 
	u16 supported;

	int pos;



	pos = pci_find_ext_capability(pdev, PCI_PASID_CAP);

	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PASID);

	if (!pos)

		return -EINVAL;
@@ -426,7 +426,7 @@ int pci_max_pasids(struct pci_dev *pdev) 
	u16 supported;

	int pos;



	pos = pci_find_ext_capability(pdev, PCI_PASID_CAP);

	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PASID);

	if (!pos)

		return -EINVAL;

include/linux/pci_regs.h

+2 −2
Original line number Diff line number Diff line
@@ -537,7 +537,9 @@ 
#define PCI_EXT_CAP_ID_ARI	14

#define PCI_EXT_CAP_ID_ATS	15

#define PCI_EXT_CAP_ID_SRIOV	16

#define PCI_EXT_CAP_ID_PRI	19

#define PCI_EXT_CAP_ID_LTR	24

#define PCI_EXT_CAP_ID_PASID	27



/* Advanced Error Reporting */

#define PCI_ERR_UNCOR_STATUS	4	/* Uncorrectable Error Status */
@@ -664,7 +666,6 @@ 
#define  PCI_ATS_MIN_STU	12	/* shift of minimum STU block */



/* Page Request Interface */

#define PCI_PRI_CAP		0x13    /* PRI capability ID */

#define PCI_PRI_CONTROL_OFF	0x04	/* Offset of control register */

#define PCI_PRI_STATUS_OFF	0x06	/* Offset of status register */

#define PCI_PRI_ENABLE		0x0001	/* Enable mask */
@@ -676,7 +677,6 @@ 
#define PCI_PRI_ALLOC_REQ_OFF	0x0c	/* Cap offset for max reqs allowed */



/* PASID capability */

#define PCI_PASID_CAP		0x1b    /* PASID capability ID */

#define PCI_PASID_CAP_OFF	0x04    /* PASID feature register */

#define PCI_PASID_CONTROL_OFF   0x06    /* PASID control register */

#define PCI_PASID_ENABLE	0x01	/* Enable/Supported bit */