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Revert "PCI: Make pci_enable_ptm() private" 

commit 1d71eb53e4 upstream.

Make pci_enable_ptm() accessible from the drivers.

Exposing this to the driver enables the driver to use the
'ptm_enabled' field of 'pci_dev' to check if PTM is enabled or not.

This reverts commit ac6c26da29 ("PCI: Make pci_enable_ptm() private").

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Meng Tang <tangmeng@uniontech.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vinicius Costa Gomes 2021-07-26 20:36:54 -07:00 committed by Greg Kroah-Hartman
parent e1513a714d
commit f0a7adff63
2 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/pci/pci.h
View File

@ -585,11 +585,8 @@ static inline void pcie_ecrc_get_policy(char *str) { }
#ifdef CONFIG_PCIE_PTM
void pci_ptm_init(struct pci_dev *dev);
int pci_enable_ptm(struct pci_dev *dev, u8 *granularity);
#else
static inline void pci_ptm_init(struct pci_dev *dev) { }
static inline int pci_enable_ptm(struct pci_dev *dev, u8 *granularity)
{ return -EINVAL; }
#endif
struct pci_dev_reset_methods {

7
include/linux/pci.h
View File

@ -1599,6 +1599,13 @@ static inline bool pci_aer_available(void) { return false; }
bool pci_ats_disabled(void);
#ifdef CONFIG_PCIE_PTM
int pci_enable_ptm(struct pci_dev *dev, u8 *granularity);
#else
static inline int pci_enable_ptm(struct pci_dev *dev, u8 *granularity)
{ return -EINVAL; }
#endif
void pci_cfg_access_lock(struct pci_dev *dev);
bool pci_cfg_access_trylock(struct pci_dev *dev);
void pci_cfg_access_unlock(struct pci_dev *dev);