linux-kernel - [PATCH 06/15] habanalabs: set DMA0 completion to SOB 1007

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Message-Id: <20190228084624.25288-7-oded.gabbay@gmail.com>
Date:   Thu, 28 Feb 2019 10:46:15 +0200
From:   Oded Gabbay <oded.gabbay@...il.com>
To:     gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org
Subject: [PATCH 06/15] 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: Oded Gabbay <oded.gabbay@...il.com>
---
 drivers/misc/habanalabs/goya/goya.c                | 14 +++++++-------
 .../habanalabs/include/goya/asic_reg/goya_regs.h   |  1 +
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index 6f0075c4e935..578e4bdc3a49 100644
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -1036,15 +1036,15 @@ 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));
-		WREG32(mmDMA_CH_0_WR_COMP_WDATA + reg_off, 0x80000001);
-	}
+	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);
 }
 
 /*
diff --git a/drivers/misc/habanalabs/include/goya/asic_reg/goya_regs.h b/drivers/misc/habanalabs/include/goya/asic_reg/goya_regs.h
index a3c746849f02..6cb0b6e54d41 100644
--- a/drivers/misc/habanalabs/include/goya/asic_reg/goya_regs.h
+++ b/drivers/misc/habanalabs/include/goya/asic_reg/goya_regs.h
@@ -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
-- 
2.17.1