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Commit 50c131ed authored by Skylar Chang's avatar Skylar Chang
Browse files

msm: gsi: update channel scratch structures 



Update channel scratch data according to GSI ver 83.

CRs-Fixed: 1000819
Change-Id: I428963f9cd7885015e5185ef6c666bf26e0851bb
Acked-by: default avatarAdy Abraham <adya@qti.qualcomm.com>
Signed-off-by: default avatarSkylar Chang <chiaweic@codeaurora.org>
parent 25f64653

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 {