kernel.git/drivers/pci/controller/vmd.c, branch linux-5.5.y

Merge branch 'pci/trivial'

2019-11-28T14:54:55Z

- Fix typos and comments (Bjorn Helgaas) - Fix Kconfig whitespace errors (Krzysztof Kozlowski) * pci/trivial: PCI: Fix indentation PCI: Fix typos PCI: Remove useless comments and tidy others PCI: Remove unnecessary includes # Conflicts: # drivers/pci/probe.c

PCI: Fix indentation

2019-11-21T21:06:47Z

Adjust indentation from spaces to tab (+optional two spaces) as in coding style with command like: $ sed -e 's/^ /\t/' -i */Kconfig [bhelgaas: do same in vmd.c] Link: https://lore.kernel.org/r/20191120134036.14502-1-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski Signed-off-by: Bjorn Helgaas

PCI: vmd: Add device id for VMD device 8086:9A0B

2019-11-20T16:30:10Z

This patch adds support for this VMD device which supports the bus restriction mode. Signed-off-by: Jon Derrick Signed-off-by: Lorenzo Pieralisi

PCI: vmd: Add bus 224-255 restriction decode

2019-11-20T16:29:59Z

VMD bus restrictions are required when IO fabric is multiplexed such that VMD cannot use the entire bus range. This patch adds another bus restriction decode bit that can be set by firmware to restrict the VMD bus range to between 224-255. Signed-off-by: Jon Derrick Signed-off-by: Lorenzo Pieralisi

PCI: vmd: Fix shadow offsets to reflect spec changes

2019-09-17T16:40:18Z

The shadow offset scratchpad was moved to 0x2000-0x2010. Update the location to get the correct shadow offset. Fixes: 6788958e4f3c ("PCI: vmd: Assign membar addresses from shadow registers") Signed-off-by: Jon Derrick Signed-off-by: Lorenzo Pieralisi Cc: stable@vger.kernel.org # v5.2+

PCI: vmd: Fix config addressing when using bus offsets

2019-09-17T16:39:08Z

VMD maps child device config spaces to the VMD Config BAR linearly regardless of the starting bus offset. Because of this, the config address decode must ignore starting bus offsets when mapping the BDF to the config space address. Fixes: 2a5a9c9a20f9 ("PCI: vmd: Add offset to bus numbers if necessary") Signed-off-by: Jon Derrick Signed-off-by: Lorenzo Pieralisi Cc: stable@vger.kernel.org # v5.2+

PCI: Fix typos and whitespace errors

2019-07-09T12:24:53Z

Fix typos in drivers/pci. Comment and whitespace changes only. Signed-off-by: Bjorn Helgaas Reviewed-by: Rafael J. Wysocki Reviewed-by: Randy Dunlap

x86/pci: Clean up usage of X86_DEV_DMA_OPS

2019-04-24T11:12:05Z

We have supported per-device dma_map_ops in generic code for a long time, and this symbol just guards the inclusion of the dma_map_ops registry used for vmd. Stop enabling it for anything but vmd. No change in functionality intended. Signed-off-by: Christoph Hellwig Acked-by: Bjorn Helgaas Cc: Borislav Petkov Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20190410080220.21705-3-hch@lst.de Signed-off-by: Ingo Molnar

PCI/VMD: Configure MPS settings before adding devices

2019-01-30T11:00:04Z

In order to provide the most performance and/or compatible settings, ensure VMD root buses observe the pcie bus tuning settings by configuring those settings prior to adding the devices to the pcie tree. This patch open-codes pci_rescan_bus() and configures the buses prior to adding devices and attaching drivers. Signed-off-by: Jon Derrick Signed-off-by: Lorenzo Pieralisi Reviewed-by: Keith Busch

vmd: use the proper dma_* APIs instead of direct methods calls

2018-12-13T20:06:17Z

With the bypass support for the direct mapping we might not always have methods to call, so use the proper APIs instead. The only downside is that we will create two dma-debug entries for each mapping if CONFIG_DMA_DEBUG is enabled. Signed-off-by: Christoph Hellwig Acked-by: Jesper Dangaard Brouer Tested-by: Jesper Dangaard Brouer Tested-by: Tony Luck