linux-kernel - [PATCH] habanalabs: fix DDR bar address setting

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Date:   Thu, 6 Feb 2020 11:16:53 +0000
From:   Omer Shpigelman <oshpigelman@...ana.ai>
To:     "oded.gabbay@...il.com" <oded.gabbay@...il.com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] habanalabs: fix DDR bar address setting

DRAM_PHYS_BASE is already taken into account in MMU_PAGE_TABLES_ADDR.

Signed-off-by: Omer Shpigelman <oshpigelman@...ana.ai>
---
 drivers/misc/habanalabs/goya/goya.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index 74785ccd2cb1..f634e9c5cad9 100644
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -2575,8 +2575,7 @@ static int goya_hw_init(struct hl_device *hdev)
 	 * After CPU initialization is finished, change DDR bar mapping inside
 	 * iATU to point to the start address of the MMU page tables
 	 */
-	if (goya_set_ddr_bar_base(hdev, DRAM_PHYS_BASE +
-			(MMU_PAGE_TABLES_ADDR &
+	if (goya_set_ddr_bar_base(hdev, (MMU_PAGE_TABLES_ADDR &
 			~(prop->dram_pci_bar_size - 0x1ull))) == U64_MAX) {
 		dev_err(hdev->dev,
 			"failed to map DDR bar to MMU page tables\n");
-- 
2.17.1