From dbc049eee73004db996cc8f63754f8dd5f86d0f7 Mon Sep 17 00:00:00 2001 From: Anup Patel Date: Wed, 15 Mar 2017 12:10:00 +0530 Subject: mailbox: Add driver for Broadcom FlexRM ring manager Some of the Broadcom iProc SoCs have FlexRM ring manager which provides a ring-based programming interface to various offload engines (e.g. RAID, Crypto, etc). This patch adds a common mailbox driver for Broadcom FlexRM ring manager which can be shared by various offload engine drivers (implemented as mailbox clients). Reviewed-by: Ray Jui Reviewed-by: Scott Branden Reviewed-by: Pramod KUMAR Signed-off-by: Anup Patel Signed-off-by: Jassi Brar --- include/linux/mailbox/brcm-message.h | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) (limited to 'include/linux/mailbox') diff --git a/include/linux/mailbox/brcm-message.h b/include/linux/mailbox/brcm-message.h index 6b55c938b401..c20b4843fc2d 100644 --- a/include/linux/mailbox/brcm-message.h +++ b/include/linux/mailbox/brcm-message.h @@ -16,6 +16,7 @@ enum brcm_message_type { BRCM_MESSAGE_UNKNOWN = 0, + BRCM_MESSAGE_BATCH, BRCM_MESSAGE_SPU, BRCM_MESSAGE_SBA, BRCM_MESSAGE_MAX, @@ -23,23 +24,28 @@ enum brcm_message_type { struct brcm_sba_command { u64 cmd; + u64 *cmd_dma; + dma_addr_t cmd_dma_addr; #define BRCM_SBA_CMD_TYPE_A BIT(0) #define BRCM_SBA_CMD_TYPE_B BIT(1) #define BRCM_SBA_CMD_TYPE_C BIT(2) #define BRCM_SBA_CMD_HAS_RESP BIT(3) #define BRCM_SBA_CMD_HAS_OUTPUT BIT(4) u64 flags; - dma_addr_t input; - size_t input_len; dma_addr_t resp; size_t resp_len; - dma_addr_t output; - size_t output_len; + dma_addr_t data; + size_t data_len; }; struct brcm_message { enum brcm_message_type type; union { + struct { + struct brcm_message *msgs; + unsigned int msgs_queued; + unsigned int msgs_count; + } batch; struct { struct scatterlist *src; struct scatterlist *dst; -- cgit v1.2.3