On Sun, Jan 28, 2024 at 03:32:07PM -0800, David E. Box wrote: > Here is the series to always build aspm.c, add back L1SS save/restore, and > consolidate all ASPM related code in aspm.c. > > Patch 1 - Moves all PCI core functions running under CONFIG_PCIEASPM into > aspm.c and changes they Makefile to always build it. No functional changes. > > Patch 2 - Creates a separate function to save the L1SS offset and places it > outside of CONFIG_PCIEASPM in aspm.c so that the offset is available for > later use by the L1SS save/restore code which needs to run when > CONFIG_PCIEASPM=n. > > Patch 3 - Updated L1 Substate save/restore patch from previous V5 [1]. > > Patch 4 - Moves the LTR save/restore state functions into aspm.c outside of > CONFIG_PCIEASPM. > > Patch 5 - Moves the LTR save/restore state calls into > pci_save/restore_pcie_state(). > > The series does not continue any of the ASPM robustness changes proposed by > Ilpo [2]. But if we think it's worth combining with this series I can > add it and help continue the work. > > [1] https://lore.kernel.org/linux-pci/20231221011250.191599-1-david.e.box@xxxxxxxxxxxxxxx/ > [2] https://lore.kernel.org/linux-pci/20230918131103.24119-1-ilpo.jarvinen@xxxxxxxxxxxxxxx/ > > David E. Box (5): > PCI: Always build aspm.c > PCI: Create function to save L1SS offset > PCI/ASPM: Add back L1 PM Substate save and restore > PCI: Move pci_save/restore_ltr_state() to aspm.c > PCI: Call LTR save/restore state from PCIe save/restore > > drivers/pci/pci.c | 91 ++++---------- > drivers/pci/pci.h | 10 +- > drivers/pci/pcie/Makefile | 2 +- > drivers/pci/pcie/aspm.c | 257 ++++++++++++++++++++++++++++++++++++-- > drivers/pci/probe.c | 62 +-------- > include/linux/pci.h | 4 +- > 6 files changed, 283 insertions(+), 143 deletions(-) > > > base-commit: 0dd3ee31125508cd67f7e7172247f05b7fd1753a Rebased to v6.8-rc1 and applied to pci/aspm for v6.9, thanks!
