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Commit 887f7d38 authored by Oded Gabbay's avatar Oded Gabbay Committed by Greg Kroah-Hartman
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habanalabs: set DMA0 completion to SOB 1007 



This patch fix a bug where DMA channel 0 completion address wasn't
initialized by the driver.

The patch sets the address to Sync Object no. 1007

Signed-off-by: default avatarOded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 6765fda0

drivers/misc/habanalabs/goya/goya.c

+7 −7
Original line number Diff line number Diff line
@@ -1036,16 +1036,16 @@ static void goya_init_dma_ch(struct hl_device *hdev, int dma_id) 
	WREG32(mmDMA_CH_0_ERRMSG_WDATA + reg_off,

			GOYA_ASYNC_EVENT_ID_DMA0_CH + dma_id);



	if (dma_id) {

	if (dma_id)

		sob_addr = CFG_BASE + mmSYNC_MNGR_SOB_OBJ_1000 +

				(dma_id - 1) * 4;

		WREG32(mmDMA_CH_0_WR_COMP_ADDR_LO + reg_off,

				lower_32_bits(sob_addr));

		WREG32(mmDMA_CH_0_WR_COMP_ADDR_HI + reg_off,

				upper_32_bits(sob_addr));

	else

		sob_addr = CFG_BASE + mmSYNC_MNGR_SOB_OBJ_1007;



	WREG32(mmDMA_CH_0_WR_COMP_ADDR_LO + reg_off, lower_32_bits(sob_addr));

	WREG32(mmDMA_CH_0_WR_COMP_ADDR_HI + reg_off, upper_32_bits(sob_addr));

	WREG32(mmDMA_CH_0_WR_COMP_WDATA + reg_off, 0x80000001);

}

}



/*

 * goya_init_dma_qmans - Initialize QMAN DMA registers

drivers/misc/habanalabs/include/goya/asic_reg/goya_regs.h

+1 −0
Original line number Diff line number Diff line
@@ -108,6 +108,7 @@ 
#define mmSYNC_MNGR_MON_PAY_ADDRL_0                                  0x113000

#define mmSYNC_MNGR_SOB_OBJ_0                                        0x112000

#define mmSYNC_MNGR_SOB_OBJ_1000                                     0x112FA0

#define mmSYNC_MNGR_SOB_OBJ_1007                                     0x112FBC

#define mmSYNC_MNGR_SOB_OBJ_1023                                     0x112FFC

#define mmSYNC_MNGR_MON_STATUS_0                                     0x114000

#define mmSYNC_MNGR_MON_STATUS_255                                   0x1143FC