On Tuesday 04 March 2014 12:41 AM, Kumar Gala wrote: > > On Feb 28, 2014, at 5:18 PM, Santosh Shilimkar <santosh.shilimkar@xxxxxx> wrote: > >> From: Sandeep Nair <sandeep_n@xxxxxx> >> >> 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 <gregkh@xxxxxxxxxxxxxxxxxxx> >> Cc: Kumar Gala <galak@xxxxxxxxxxxxxx> >> Cc: Olof Johansson <olof@xxxxxxxxx> >> Cc: Arnd Bergmann <arnd@xxxxxxxx> >> Cc: Grant Likely <grant.likely@xxxxxxxxxx> >> Cc: Rob Herring <robh+dt@xxxxxxxxxx> >> Cc: Mark Rutland <mark.rutland@xxxxxxx> >> Signed-off-by: Sandeep Nair <sandeep_n@xxxxxx> >> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx> >> --- >> .../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 > Agree. I will change that. >> 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 > Make sense.Will update the patch accordingly. Regards, Santosh -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
