Merge "msm: sps: SPS driver changes for dummy BAM connect" (b20aa2b4) · Commits · e / devices / android_kernel_xiaomi_nabu

drivers/platform/msm/sps/bam.c

+8 −3

Original line number	Diff line number	Diff line
		/* Copyright (c) 2011-2017, The Linux Foundation. All rights reserved.
		/* Copyright (c) 2011-2017, 2020, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		@@ -1388,8 +1388,13 @@ int bam_pipe_init(void base, u32 pipe, struct bam_pipe_parameters param,
		bam_write_reg_field(base, P_FIFO_SIZES, pipe,
		P_DATA_FIFO_SIZE, param->data_size);

		bam_write_reg(base, P_EVNT_DEST_ADDR, pipe, peer_dest_addr);

		if (!(param->dummy_peer)) {
		bam_write_reg(base, P_EVNT_DEST_ADDR, pipe,
		peer_dest_addr);
		} else {
		bam_write_reg(base, P_EVNT_DEST_ADDR, pipe,
		param->peer_phys_addr);
		}
		SPS_DBG2(dev,
		"sps:bam=0x%pK(va).pipe=%d.peer_bam=0x%x.peer_pipe=%d.\n",
		dev->base, pipe,

drivers/platform/msm/sps/bam.h

+2 −1

Original line number	Diff line number	Diff line
		/* Copyright (c) 2011-2017, The Linux Foundation. All rights reserved.
		/* Copyright (c) 2011-2017, 2020, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		@@ -83,6 +83,7 @@ struct bam_pipe_parameters {
		u32 peer_pipe;
		phys_addr_t data_base; /* Physical address of data FIFO */
		u32 data_size; /* Size (bytes) of data FIFO */
		bool dummy_peer;
		};

		/**

drivers/platform/msm/sps/sps_bam.c

+20 −8

Original line number	Diff line number	Diff line
		/* Copyright (c) 2011-2017, 2019, The Linux Foundation. All rights reserved.
		/* Copyright (c) 2011-2017, 2019-2020, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		@@ -875,13 +875,15 @@ int sps_bam_pipe_connect(struct sps_pipe *bam_pipe,
		}

		/* Determine operational mode */
		if (other_pipe->bam != NULL) {
		if ((bam_pipe->connect.options & SPS_O_DUMMY_PEER) \|\|
		other_pipe->bam != NULL) {
		unsigned long iova;
		struct sps_bam peer_bam = (struct sps_bam )(other_pipe->bam);
		struct sps_bam *peer_bam;
		/* BAM-to-BAM mode */
		bam_pipe->state \|= BAM_STATE_BAM2BAM;
		hw_params.mode = BAM_PIPE_MODE_BAM2BAM;

		if (!(bam_pipe->connect.options & SPS_O_DUMMY_PEER))
		peer_bam = (struct sps_bam *)(other_pipe->bam);
		if (dev->props.options & SPS_BAM_SMMU_EN) {
		if (bam_pipe->mode == SPS_MODE_SRC)
		iova = bam_pipe->connect.dest_iova;
		@@ -892,11 +894,21 @@ int sps_bam_pipe_connect(struct sps_pipe *bam_pipe,
		BAM_ID(dev), pipe_index, (void *)iova);
		hw_params.peer_phys_addr = (u32)iova;
		} else {
		hw_params.peer_phys_addr = peer_bam->props.phys_addr;
		}

		if (!(bam_pipe->connect.options & SPS_O_DUMMY_PEER))
		hw_params.peer_phys_addr =
		peer_bam->props.phys_addr;
		}
		if (!(bam_pipe->connect.options & SPS_O_DUMMY_PEER)) {
		hw_params.peer_phys_addr =
		bam_pipe->connect.destination;
		hw_params.peer_pipe =
		bam_pipe->connect.dest_pipe_index;
		} else {
		hw_params.peer_phys_addr =
		bam_pipe->connect.destination;
		hw_params.peer_pipe = other_pipe->pipe_index;

		hw_params.dummy_peer = true;
		}
		/* Verify FIFO buffers are allocated for BAM-to-BAM pipes */
		if (map->desc.phys_base == SPS_ADDR_INVALID \|\|
		map->data.phys_base == SPS_ADDR_INVALID \|\|

drivers/platform/msm/sps/sps_rm.c

+15 −10

Original line number	Diff line number	Diff line
		/* Copyright (c) 2011-2015, 2017-2019, The Linux Foundation. All rights reserved.
		/* Copyright (c) 2011-2015, 2017-2020, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		@@ -404,15 +404,19 @@ static struct sps_connection sps_rm_create(struct sps_pipe pipe)
		}
		map->src.pipe_index = SPS_BAM_PIPE_INVALID;
		}

		if (!(pipe->connect.options & SPS_O_DUMMY_PEER)) {
		map->dest.bam = sps_h2bam(map->dest.dev);
		if (map->dest.bam == NULL) {
		if (map->dest.dev != SPS_DEV_HANDLE_MEM) {
		SPS_ERR(sps, "sps:Invalid BAM handle: %pK",
		SPS_ERR(sps,
		"sps:Invalid BAM handle: %pK",
		(void *)(&map->dest.dev));
		goto exit_err;
		}
		map->dest.pipe_index = SPS_BAM_PIPE_INVALID;
		}
		}

		/* Check the BAM device for the pipe */
		if ((dir == SPS_MODE_SRC && map->src.bam == NULL) \|\|
		@@ -504,6 +508,7 @@ static struct sps_connection sps_rm_create(struct sps_pipe pipe)
		if (map->data.size == SPSRM_CLEAR)
		map->data.size = data_size;
		} else {
		if (!(pipe->connect.options & SPS_O_DUMMY_PEER))
		map->data.size = 0;
		}
		if (map->desc.size > SPSRM_MAX_DESC_FIFO_SIZE) {

include/linux/msm-sps.h

+3 −1

Original line number	Diff line number	Diff line
		/* Copyright (c) 2011-2017, The Linux Foundation. All rights reserved.
		/* Copyright (c) 2011-2017, 2020, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		@@ -211,6 +211,8 @@ enum sps_option {
		SPS_O_NO_EP_SYNC = 0x40000000,
		/* Allow partial polling duing IRQ mode */
		SPS_O_HYBRID = 0x80000000,
		/* Allow dummy BAM connection */
		SPS_O_DUMMY_PEER = 0x00000400,
		};

		/**