msm: ipa: Add snapshot of IPA driver

Qualcomm Internet Packet Accelerator

Internet Packet Accelerator (IPA) is a programmable protocol

processor HW block. It is designed to support generic HW processing

of UL/DL IP packets for various use cases independent of radio technology.

Required properties:

IPA node:

- compatible : "qcom,ipa"

- reg: Specifies the base physical addresses and the sizes of the IPA

       registers.

- reg-names: "ipa-base" - string to identify the IPA CORE base registers.

	     "bam-base" - string to identify the IPA BAM base registers.

	     "a2-bam-base" - string to identify the A2 BAM base registers.

- interrupts: Specifies the interrupt associated with IPA.

- interrupt-names: "ipa-irq" - string to identify the IPA core interrupt.

                   "bam-irq" - string to identify the IPA BAM interrupt.

                   "a2-bam-irq" - string to identify the A2 BAM interrupt.

- qcom,ipa-hw-ver: Specifies the IPA hardware version.

Optional:

- qcom,wan-rx-ring-size: size of WAN rx ring, default is 32

- qcom,use-a2-service: determine if A2 service will be used

- qcom,use-ipa-tethering-bridge: determine if tethering bridge will be used

- qcom,use-ipa-bamdma-a2-bridge: determine if a2/ipa hw bridge will be used

- qcom,ee: which EE is assigned to (non-secure) APPS from IPA-BAM POV. This

is a number

- qcom,ipa-hw-mode: IPA hardware mode - Normal, Virtual memory allocation,

memory allocation over a PCIe bridge

- qcom,msm-bus,name:            String representing the client-name

- qcom,msm-bus,num-cases:       Total number of usecases

- qcom,msm-bus,active-only:     Boolean context flag for requests in active or

                                dual (active & sleep) contex

- qcom,msm-bus,num-paths:       Total number of master-slave pairs

- qcom,msm-bus,vectors-KBps:    Arrays of unsigned integers representing:

                                master-id, slave-id, arbitrated bandwidth

                                in KBps, instantaneous bandwidth in KBps

- qcom,ipa-bam-remote-mode:     Boolean context flag to determine if ipa bam

                                is in remote mode.

- qcom,modem-cfg-emb-pipe-flt:  Boolean context flag to determine if modem

                                configures embedded pipe filtering rules

IPA pipe sub nodes (A2 static pipes configurations):

-label: two labels are supported, a2-to-ipa and ipa-to-a2 which

supply static configuration for A2-IPA connection.

-qcom,src-bam-physical-address: The physical address of the source BAM

-qcom,ipa-bam-mem-type:The memory type:

                       0(Pipe memory), 1(Private memory), 2(System memory)

-qcom,src-bam-pipe-index: Source pipe index

-qcom,dst-bam-physical-address: The physical address of the

                                destination BAM

-qcom,dst-bam-pipe-index: Destination pipe index

-qcom,data-fifo-offset: Data fifo base offset

-qcom,data-fifo-size:  Data fifo size (bytes)

-qcom,descriptor-fifo-offset: Descriptor fifo base offset

-qcom,descriptor-fifo-size: Descriptor fifo size (bytes)

Optional properties:

-qcom,ipa-pipe-mem: Specifies the base physical address and the

                    size of the IPA pipe memory region.

                    Pipe memory is a feature which may be supported by the

                    target (HW platform). The Driver support using pipe

                    memory instead of system memory. In case this property

                    will not appear in the IPA DTS entry, the driver will

                    use system memory.

- clocks: This property shall provide a list of entries each of which

    contains a phandle to clock controller device and a macro that is

    the clock's name in hardware.This should be "clock_rpm" as clock

    controller phandle and "clk_ipa_clk" as macro for "iface_clk"

- clock-names: This property shall contain the clock input names used

    by driver in same order as the clocks property.This should be "iface_clk"

Example:

qcom,ipa@fd4c0000 {

	compatible = "qcom,ipa";

	reg = <0xfd4c0000 0x26000>,

	      <0xfd4c4000 0x14818>;

	      <0xfc834000 0x7000>;

	reg-names = "ipa-base", "bam-base"; "a2-bam-base";

	interrupts = <0 252 0>,

	             <0 253 0>;

	             <0 29 1>;

	interrupt-names = "ipa-irq", "bam-irq"; "a2-bam-irq";

	qcom,ipa-hw-ver = <1>;

	clocks = <&clock_rpm clk_ipa_clk>;

	clock-names = "iface_clk";

        qcom,msm-bus,name = "ipa";

        qcom,msm-bus,num-cases = <3>;

        qcom,msm-bus,num-paths = <2>;

        qcom,msm-bus,vectors-KBps =

        <90 512 0 0>, <90 585 0 0>,         /* No vote */

        <90 512 100000 800000>, <90 585 100000 800000>,    /* SVS */

        <90 512 100000 1200000>, <90 585 100000 1200000>;    /* PERF */

        qcom,bus-vector-names = "MIN", "SVS", "PERF";

	qcom,pipe1 {

		label = "a2-to-ipa";

		qcom,src-bam-physical-address = <0xfc834000>;

		qcom,ipa-bam-mem-type = <0>;

		qcom,src-bam-pipe-index = <1>;

		qcom,dst-bam-physical-address = <0xfd4c0000>;

		qcom,dst-bam-pipe-index = <6>;

		qcom,data-fifo-offset = <0x1000>;

		qcom,data-fifo-size = <0xd00>;

		qcom,descriptor-fifo-offset = <0x1d00>;

		qcom,descriptor-fifo-size = <0x300>;

	};

	qcom,pipe2 {

		label = "ipa-to-a2";

		qcom,src-bam-physical-address = <0xfd4c0000>;

		qcom,ipa-bam-mem-type = <0>;

		qcom,src-bam-pipe-index = <7>;

		qcom,dst-bam-physical-address = <0xfc834000>;

		qcom,dst-bam-pipe-index = <0>;

		qcom,data-fifo-offset = <0x00>;

		qcom,data-fifo-size = <0xd00>;

		qcom,descriptor-fifo-offset = <0xd00>;

		qcom,descriptor-fifo-size = <0x300>;

	};

};

	help

	  No-Data-Path BAM is used to improve BAM performance.

config IPA

	tristate "IPA support"

	depends on SPS && NET

	help

	  This driver supports the Internet Packet Accelerator (IPA) core.

	  IPA is a programmable protocol processor HW block.

	  It is designed to support generic HW processing of UL/DL IP packets

	  for various use cases independent of radio technology.

	  The driver support client connection and configuration

	  for the IPA core.

	  Kernel and user-space processes can call the IPA driver

	  to configure IPA core.

config I2C_MSM_PROF_DBG

	tristate "I2C_MSM_PROF_DBG"

	depends on ARCH_MSM && I2C_MSM_V2

obj-$(CONFIG_QPNP_COINCELL) += qpnp-coincell.o

obj-$(CONFIG_SPS) += sps/

obj-$(CONFIG_I2C_MSM_PROF_DBG) += i2c-msm-prof-dbg.o

obj-$(CONFIG_IPA) += ipa/

 No newline at end of file

obj-$(CONFIG_IPA) += ipat.o

ipat-y := ipa.o ipa_debugfs.o ipa_hdr.o ipa_flt.o ipa_rt.o ipa_dp.o ipa_client.o \

	ipa_utils.o ipa_nat.o ipa_intf.o teth_bridge.o ipa_interrupts.o odu_bridge.o \

	ipa_rm.o ipa_rm_dependency_graph.o ipa_rm_peers_list.o ipa_rm_resource.o ipa_rm_inactivity_timer.o \

	ipa_uc.o ipa_uc_wdi.o ipa_dma.o ipa_uc_mhi.o ipa_mhi.o