linux-kernel - [PATCH 9/9] habanalabs: set default value for memory

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Date:   Thu, 23 Jun 2022 23:42:12 +0300
From:   Oded Gabbay <ogabbay@...nel.org>
To:     linux-kernel@...r.kernel.org
Cc:     Dafna Hirschfeld <dhirschfeld@...ana.ai>
Subject: [PATCH 9/9] habanalabs: set default value for memory_scrub

From: Dafna Hirschfeld <dhirschfeld@...ana.ai>

Set a default value for memory scrubbing

Signed-off-by: Dafna Hirschfeld <dhirschfeld@...ana.ai>
Reviewed-by: Oded Gabbay <ogabbay@...nel.org>
Signed-off-by: Oded Gabbay <ogabbay@...nel.org>
---
 drivers/misc/habanalabs/common/device.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/misc/habanalabs/common/device.c b/drivers/misc/habanalabs/common/device.c
index 1a4f3eb941a9..34ba521e2d1a 100644
--- a/drivers/misc/habanalabs/common/device.c
+++ b/drivers/misc/habanalabs/common/device.c
@@ -15,6 +15,8 @@
 
 #define HL_RESET_DELAY_USEC		10000	/* 10ms */
 
+#define MEM_SCRUB_DEFAULT_VAL 0x1122334455667788
+
 /*
  * hl_set_dram_bar- sets the bar to allow later access to address
  *
@@ -1727,6 +1729,7 @@ int hl_device_init(struct hl_device *hdev, struct class *hclass)
 
 	hdev->asic_funcs->state_dump_init(hdev);
 
+	hdev->memory_scrub_val = MEM_SCRUB_DEFAULT_VAL;
 	hl_debugfs_add_device(hdev);
 
 	/* debugfs nodes are created in hl_ctx_init so it must be called after
-- 
2.25.1