[PATCH V4 00/10] dmaengine: qcom_hidma: add MSI interrupt support
Sinan Kaya
okaya at codeaurora.org
Wed Sep 28 19:12:37 PDT 2016
The new version of the HW supports MSI interrupts instead of wired
interrupts. The MSI interrupts are especially useful for the guest machine
execution. The wired interrupts usually trap to the hypervisor and then are
relayed to the actual interrupt.
The MSI interrupts can be directly fed into the interrupt controller.
Adding a new OF compat string (qcom,hidma-1.1) and ACPI string (QCOM8062)
to distinguish newer HW from the older ones.
v4:
* device tree binding update to refer to msi.txt
v3:
* day 0 fix for when ACPI is not compiled in
* https://www.spinics.net/lists/arm-kernel/msg532179.html
v2:
https://patchwork.kernel.org/patch/9326399/
* Documentation update for DT bindings
* Rebased to slave-next
* Dropped dmaengine: qcom_hidma: eliminate processed variables. Replaced it
with dmaengine: qcom_hidma: protect common data structures
v1:
http://lists.infradead.org/pipermail/linux-arm-kernel/2016-July/444167.html
* initial implementation
Sinan Kaya (10):
Documentation: DT: qcom_hidma: update binding for MSI
Documentation: DT: qcom_hidma: correct spelling mistakes
of: irq: make of_msi_configure accessible from modules
dmaengine: qcom_hidma: configure DMA and MSI for OF
dmaengine: qcom_hidma: make pending_tre_count atomic
dmaengine: qcom_hidma: make error and success path common
dmaengine: qcom_hidma: bring out interrupt cause
dmaengine: qcom_hidma: add a common API to setup the interrupt
dmaengine: qcom_hidma: protect common data structures
dmaengine: qcom_hidma: add MSI support for interrupts
.../devicetree/bindings/dma/qcom_hidma_mgmt.txt | 12 +-
drivers/dma/qcom/hidma.c | 129 +++++++++-
drivers/dma/qcom/hidma.h | 6 +-
drivers/dma/qcom/hidma_dbg.c | 3 +-
drivers/dma/qcom/hidma_ll.c | 278 ++++++++++-----------
drivers/dma/qcom/hidma_mgmt.c | 5 +-
drivers/of/irq.c | 1 +
7 files changed, 275 insertions(+), 159 deletions(-)
--
1.9.1
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