Merge "msm: gsi: update channel scratch structures" (3aeaa2f8) · Commits · e / devices / android_kernel_xiaomi_markw

include/linux/msm_gsi.h

+44 −12

Original line number	Diff line number	Diff line
		@@ -411,6 +411,33 @@ struct gsi_xfer_elem {
		void *xfer_user_data;
		};

		/**
		* gsi_gpi_channel_scratch - GPI protocol SW config area of
		* channel scratch
		*
		* @max_outstanding_tre: Used for the prefetch management sequence by the
		* sequencer. Defines the maximum number of allowed
		* outstanding TREs in IPA/GSI (in Bytes). RE engine
		* prefetch will be limited by this configuration. It
		* is suggested to configure this value to IPA_IF
		* channel TLV queue size times element size. To disable
		* the feature in doorbell mode (DB Mode=1). Maximum
		* outstanding TREs should be set to 64KB
		* (or any value larger or equal to ring length . RLEN)
		* @outstanding_threshold: Used for the prefetch management sequence by the
		* sequencer. Defines the threshold (in Bytes) as to when
		* to update the channel doorbell. Should be smaller than
		* Maximum outstanding TREs. value. It is suggested to
		* configure this value to 2 * element size.
		*/
		struct __packed gsi_gpi_channel_scratch {
		uint64_t resvd1;
		uint32_t resvd2:16;
		uint32_t max_outstanding_tre:16;
		uint32_t resvd3:16;
		uint32_t outstanding_threshold:16;
		};

		/**
		* gsi_mhi_channel_scratch - MHI protocol SW config area of
		* channel scratch
		@@ -443,15 +470,17 @@ struct gsi_xfer_elem {
		* sequencer. Defines the maximum number of allowed
		* outstanding TREs in IPA/GSI (in Bytes). RE engine
		* prefetch will be limited by this configuration. It
		* is suggested to configure this value with the IPA_IF
		* channel AOS queue size. To disable the feature in
		* doorbell mode (DB Mode=1) Maximum outstanding TREs
		* should be set to 64KB (or any value larger or equal
		* to ring length . RLEN)
		* is suggested to configure this value to IPA_IF
		* channel TLV queue size times element size.
		* To disable the feature in doorbell mode (DB Mode=1).
		* Maximum outstanding TREs should be set to 64KB
		* (or any value larger or equal to ring length . RLEN)
		* @outstanding_threshold: Used for the prefetch management sequence by the
		* sequencer. Defines the threshold (in Bytes) as to when
		* to update the channel doorbell. Should be smaller than
		* Maximum outstanding TREs. value.
		* Maximum outstanding TREs. value. It is suggested to
		* configure this value to min(TLV_FIFO_SIZE/2,8) *
		* element size.
		*/
		struct __packed gsi_mhi_channel_scratch {
		uint64_t mhi_host_wp_addr;
		@@ -484,16 +513,18 @@ struct __packed gsi_mhi_channel_scratch {
		* sequencer. Defines the maximum number of allowed
		* outstanding TREs in IPA/GSI (in Bytes). RE engine
		* prefetch will be limited by this configuration. It
		* is suggested to configure this value with the IPA_IF
		* channel AOS queue size. To disable the feature in
		* doorbell mode (DB Mode=1) Maximum outstanding TREs
		* should be set to 64KB (or any value larger or equal
		* to ring length . RLEN)
		* is suggested to configure this value to IPA_IF
		* channel TLV queue size times element size.
		* To disable the feature in doorbell mode (DB Mode=1)
		* Maximum outstanding TREs should be set to 64KB
		* (or any value larger or equal to ring length . RLEN)
		* @depcmd_hi_addr: Used to generate "Update Transfer" command
		* @outstanding_threshold: Used for the prefetch management sequence by the
		* sequencer. Defines the threshold (in Bytes) as to when
		* to update the channel doorbell. Should be smaller than
		* Maximum outstanding TREs. value.
		* Maximum outstanding TREs. value. It is suggested to
		* configure this value to 2 * element size. for MBIM the
		* suggested configuration is the element size.
		*/
		struct __packed gsi_xdci_channel_scratch {
		uint32_t last_trb_addr:16;
		@@ -513,6 +544,7 @@ struct __packed gsi_xdci_channel_scratch {
		*
		*/
		union __packed gsi_channel_scratch {
		struct __packed gsi_gpi_channel_scratch gpi;
		struct __packed gsi_mhi_channel_scratch mhi;
		struct __packed gsi_xdci_channel_scratch xdci;
		struct __packed {