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PCI/PTM: Cache PTM Capability offset

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Cache the PTM Capability offset instead of searching for it every time we
enable/disable PTM or save/restore PTM state.  No functional change
intended.

Link: https://lore.kernel.org/r/20220909202505.314195-2-helgaas@kernel.org
Tested-by: Rajvi Jingar <rajvi.jingar@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Bjorn Helgaas
2022-09-09 15:24:57 -05:00
parent 568035b01c
commit a47126ec29
2 changed files with 18 additions and 24 deletions
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1
include/linux/pci.h
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@@ -475,6 +475,7 @@ struct pci_dev {
unsigned int broken_cmd_compl:1; /* No compl for some cmds */
#endif
#ifdef CONFIG_PCIE_PTM
u16 ptm_cap; /* PTM Capability */
unsigned int ptm_root:1;
unsigned int ptm_enabled:1;
u8 ptm_granularity;