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[v2,0/9] PCI: endpoint: set prefetchable bit for 64-bit BARs

Message ID 20240312105152.3457899-1-cassel@kernel.org (mailing list archive)
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Series PCI: endpoint: set prefetchable bit for 64-bit BARs | expand

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Niklas Cassel March 12, 2024, 10:51 a.m. UTC 
Shradha Todi wanted to add prefetchable BAR support by adding more things
to epc_features:
https://lore.kernel.org/linux-pci/20240228134448.56372-1-shradha.t@samsung.com/T/#t

The series starts off with some generic cleanups and fixes which was needed
to make the implementation of the actual feature easier.

The final patch in the series sets the prefetchable bit for all backing memory
that the EPF core allocates for a 64-bit BAR.


Kind regards,
Niklas


Changes since V2:
-Addressed my own comments.
-Added additional clean up patches.


Niklas Cassel (9):
  PCI: endpoint: pci-epf-test: Fix incorrect loop increment
  PCI: endpoint: Allocate a 64-bit BAR if that is the only option
  PCI: endpoint: pci-epf-test: Remove superfluous code
  PCI: endpoint: pci-epf-test: Simplify pci_epf_test_alloc_space() loop
  PCI: endpoint: pci-epf-test: Simplify pci_epf_test_set_bar() loop
  PCI: endpoint: pci-epf-test: Clean up pci_epf_test_unbind()
  PCI: cadence: Set a 64-bit BAR if requested
  PCI: rockchip-ep: Set a 64-bit BAR if requested
  PCI: endpoint: Set prefetch when allocating memory for 64-bit BARs

 .../pci/controller/cadence/pcie-cadence-ep.c  |  5 +-
 drivers/pci/controller/pcie-rockchip-ep.c     |  2 +-
 drivers/pci/endpoint/functions/pci-epf-test.c | 67 +++++++------------
 drivers/pci/endpoint/pci-epf-core.c           | 10 ++-
 4 files changed, 33 insertions(+), 51 deletions(-)