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* pci/spdx:
PCI: Add SPDX GPL-2.0+ to replace implicit GPL v2 or later statement
PCI: Add SPDX GPL-2.0+ to replace GPL v2 or later boilerplate
PCI: Add SPDX GPL-2.0 to replace COPYING boilerplate
PCI: Add SPDX GPL-2.0 to replace GPL v2 boilerplate
PCI: Add SPDX GPL-2.0 when no license was specified
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* lorenzo/pci/endpoint:
PCI: endpoint: Use EPC's device in dma_alloc_coherent()/dma_free_coherent()
PCI: designware-ep: Fix ->get_msi() to check MSI_EN bit
PCI: endpoint: Fix find_first_zero_bit() usage
PCI: endpoint: Populate func_no before calling pci_epc_add_epf()
PCI: designware-ep: Fix find_first_zero_bit() usage
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This patch updates the prototype of most handlers from 'struct
pci_epc_ops' so the EPC library can now support multi-function devices.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@free-electrons.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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Add SPDX GPL-2.0 to all PCI files that specified the GPL version 2 license.
Remove the boilerplate GPL version 2 language, relying on the assertion in
b24413180f56 ("License cleanup: add SPDX GPL-2.0 license identifier to
files with no license") that the SPDX identifier may be used instead of the
full boilerplate text.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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After commit 723288836628 ("of: restrict DMA configuration"),
of_dma_configure() doesn't configure the coherent_dma_mask/dma_mask
of endpoint function device (since it doesn't have a DT node associated
with and hence no dma-ranges property), resulting in
dma_alloc_coherent() (used in pci_epf_alloc_space()) to fail.
Fix it by making dma_alloc_coherent() use EPC's device for allocating
memory address.
Link: http://lkml.kernel.org/r/64d63468-d28f-8fcd-a6f3-cf2a6401c8cb@ti.com
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
[lorenzo.pieralisi@arm.com: tweaked commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>
Tested-by: Cyrille Pitchen <cyrille.pitchen@free-electrons.com>
Tested-by: Niklas Cassel <niklas.cassel@axis.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
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Use of_dma_configure() to set the initial DMA mask of EPF device. This
helps to get rid of "Coherent DMA mask 0x0 (pfn 0x0-0x1) covers a smaller
range of system memory than the DMA zone pfn" warning in certain platforms
like TI's K2G resulting in coherent DMA mask not being set.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Invoke APIs provided by pci-ep-cfs to create configfs entry for every EPC
device and EPF driver to help users in creating EPF device and binding the
EPF device to the EPC device.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Introduce a new EP core layer in order to support endpoint functions in
linux kernel. This comprises the EPC library (Endpoint Controller Library)
and EPF library (Endpoint Function Library). EPC library implements
functions specific to an endpoint controller and EPF library implements
functions specific to an endpoint function.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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