On Feb 28, 2014, at 5:18 PM, Santosh Shilimkar <santosh.shilim...@ti.com> wrote:
> From: Sandeep Nair <sandee...@ti.com>
>
> The QMSS (Queue Manager Sub System) found on Keystone SOCs is one of
> the main hardware sub system which forms the backbone of the Keystone
> Multi-core Navigator. QMSS consist of queue managers, packed-data structure
> processors(PDSP), linking RAM, descriptor pools and infrastructure
> Packet DMA.
>
> The Queue Manager is a hardware module that is responsible for accelerating
> management of the packet queues. Packets are queued/de-queued by writing or
> reading descriptor address to a particular memory mapped location. The PDSPs
> perform QMSS related functions like accumulation, QoS, or event management.
> Linking RAM registers are used to link the descriptors which are stored in
> descriptor RAM. Descriptor RAM is configurable as internal or external memory.
>
> The QMSS driver manages the PDSP setups, linking RAM regions,
> queue pool management (allocation, push, pop and notify) and descriptor
> pool management. The specifics on the device tree bindings for
> QMSS can be found in:
> Documentation/devicetree/bindings/soc/keystone-qmss.txt
>
> Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
> Cc: Kumar Gala <ga...@codeaurora.org>
> Cc: Olof Johansson <o...@lixom.net>
> Cc: Arnd Bergmann <a...@arndb.de>
> Cc: Grant Likely <grant.lik...@linaro.org>
> Cc: Rob Herring <robh...@kernel.org>
> Cc: Mark Rutland <mark.rutl...@arm.com>
> Signed-off-by: Sandeep Nair <sandee...@ti.com>
> Signed-off-by: Santosh Shilimkar <santosh.shilim...@ti.com>
> ---
> .../devicetree/bindings/soc/keystone-qmss.txt | 209 +++
> drivers/Kconfig | 2 +
> drivers/Makefile | 3 +
> drivers/soc/Kconfig | 2 +
> drivers/soc/Makefile | 5 +
> drivers/soc/keystone/Kconfig | 15 +
> drivers/soc/keystone/Makefile | 5 +
> drivers/soc/keystone/qmss_acc.c | 591 ++++++++
> drivers/soc/keystone/qmss_queue.c | 1533 ++++++++++++++++++++
> drivers/soc/keystone/qmss_queue.h | 236 +++
So this should be drivers/soc/ti, much like we use vendor in
drivers/net/ethernet
> include/linux/soc/keystone_qmss.h | 390 +++++
include/linux/soc/ti/
> 11 files changed, 2991 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/soc/keystone-qmss.txt
> create mode 100644 drivers/soc/Makefile
> create mode 100644 drivers/soc/keystone/Kconfig
> create mode 100644 drivers/soc/keystone/Makefile
> create mode 100644 drivers/soc/keystone/qmss_acc.c
> create mode 100644 drivers/soc/keystone/qmss_queue.c
> create mode 100644 drivers/soc/keystone/qmss_queue.h
> create mode 100644 include/linux/soc/keystone_qmss.h
[snip]
> diff --git a/drivers/Kconfig b/drivers/Kconfig
> index 37f955f..3220516 100644
> --- a/drivers/Kconfig
> +++ b/drivers/Kconfig
> @@ -146,6 +146,8 @@ source "drivers/remoteproc/Kconfig"
>
> source "drivers/rpmsg/Kconfig"
>
> +source "drivers/soc/Kconfig"
> +
> source "drivers/devfreq/Kconfig"
>
> source "drivers/extcon/Kconfig"
> diff --git a/drivers/Makefile b/drivers/Makefile
> index 0d8e2a4..0c22db8 100644
> --- a/drivers/Makefile
> +++ b/drivers/Makefile
> @@ -146,6 +146,9 @@ obj-$(CONFIG_IOMMU_SUPPORT) += iommu/
> obj-$(CONFIG_REMOTEPROC) += remoteproc/
> obj-$(CONFIG_RPMSG) += rpmsg/
>
> +# SOC specific drivers
> +obj-y += soc/
> +
> # Virtualization drivers
> obj-$(CONFIG_VIRT_DRIVERS) += virt/
> obj-$(CONFIG_HYPERV) += hv/
> diff --git a/drivers/soc/Kconfig b/drivers/soc/Kconfig
> index 2f9d7d0..59980bd 100644
> --- a/drivers/soc/Kconfig
> +++ b/drivers/soc/Kconfig
> @@ -1,3 +1,5 @@
> menu "SOC specific Drivers"
>
> +source "drivers/soc/keystone/Kconfig"
> +
> endmenu
> diff --git a/drivers/soc/Makefile b/drivers/soc/Makefile
> new file mode 100644
> index 0000000..c5d141e
> --- /dev/null
> +++ b/drivers/soc/Makefile
> @@ -0,0 +1,5 @@
> +#
> +# Makefile for the Linux kernel SOC specific device drivers.
> +#
> +
> +obj-$(CONFIG_ARCH_KEYSTONE) += keystone/
> diff --git a/drivers/soc/keystone/Kconfig b/drivers/soc/keystone/Kconfig
> new file mode 100644
> index 0000000..0b3131b
> --- /dev/null
> +++ b/drivers/soc/keystone/Kconfig
> @@ -0,0 +1,15 @@
> +#
> +# TI Keystone Soc drivers
> +#
> +
We should have this be something like:
menuconfig SOC_TI
bool “TI SoC support”
if SOC_TI
> +config KEYSTONE_QMSS
> + tristate "Keystone Queue Manager Sub System"
> + depends on ARCH_KEYSTONE
> + help
> + Say y here to support the Keystone Hardware Queue Manager support.
> + The Queue Manager is a hardware module that is responsible for
> + accelerating management of the packet queues. Packets are queued/
> + de-queued by writing/reading descriptor address to a particular
> + memory mapped location in the Queue Manager module.
> +
> + If unsure, say N.
endif # SOC_TI
[snip]
- k
--
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by
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