linux-kernel - [PATCH 08/26] habanalabs: make set_dram

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Message-Id: <20221208151350.1833823-8-ogabbay@kernel.org>
Date:   Thu,  8 Dec 2022 17:13:32 +0200
From:   Oded Gabbay <ogabbay@...nel.org>
To:     linux-kernel@...r.kernel.org
Cc:     Ohad Sharabi <osharabi@...ana.ai>
Subject: [PATCH 08/26] habanalabs: make set_dram_properties an ASIC function

From: Ohad Sharabi <osharabi@...ana.ai>

As ASICs are evolving, we will need to update the DRAM properties at
various points because we may get different information from the f/w
at different points of the initialization.

This ASIC function is a foundation for this capability.

Signed-off-by: Ohad Sharabi <osharabi@...ana.ai>
Reviewed-by: Oded Gabbay <ogabbay@...nel.org>
Signed-off-by: Oded Gabbay <ogabbay@...nel.org>
---
 drivers/misc/habanalabs/common/habanalabs.h | 1 +
 drivers/misc/habanalabs/gaudi/gaudi.c       | 6 ++++++
 drivers/misc/habanalabs/gaudi2/gaudi2.c     | 3 ++-
 drivers/misc/habanalabs/goya/goya.c         | 6 ++++++
 4 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/habanalabs/common/habanalabs.h b/drivers/misc/habanalabs/common/habanalabs.h
index ecf7e5da8f1d..893ebcba170b 100644
--- a/drivers/misc/habanalabs/common/habanalabs.h
+++ b/drivers/misc/habanalabs/common/habanalabs.h
@@ -1683,6 +1683,7 @@ struct hl_asic_funcs {
 	int (*set_engine_cores)(struct hl_device *hdev, u32 *core_ids,
 					u32 num_cores, u32 core_command);
 	int (*send_device_activity)(struct hl_device *hdev, bool open);
+	int (*set_dram_properties)(struct hl_device *hdev);
 };
 
 
diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c
index ae78f838f987..1b701a87c6fe 100644
--- a/drivers/misc/habanalabs/gaudi/gaudi.c
+++ b/drivers/misc/habanalabs/gaudi/gaudi.c
@@ -9134,6 +9134,11 @@ static u32 *gaudi_get_stream_master_qid_arr(void)
 	return gaudi_stream_master;
 }
 
+static int gaudi_set_dram_properties(struct hl_device *hdev)
+{
+	return 0;
+}
+
 static void gaudi_check_if_razwi_happened(struct hl_device *hdev)
 {
 }
@@ -9260,6 +9265,7 @@ static const struct hl_asic_funcs gaudi_funcs = {
 	.access_dev_mem = hl_access_dev_mem,
 	.set_dram_bar_base = gaudi_set_hbm_bar_base,
 	.send_device_activity = gaudi_send_device_activity,
+	.set_dram_properties = gaudi_set_dram_properties,
 };
 
 /**
diff --git a/drivers/misc/habanalabs/gaudi2/gaudi2.c b/drivers/misc/habanalabs/gaudi2/gaudi2.c
index c14b3bb16f96..10c017b8ddfa 100644
--- a/drivers/misc/habanalabs/gaudi2/gaudi2.c
+++ b/drivers/misc/habanalabs/gaudi2/gaudi2.c
@@ -2485,7 +2485,7 @@ static int gaudi2_cpucp_info_get(struct hl_device *hdev)
 	 * at this point the DRAM parameters need to be updated according to data obtained
 	 * from the FW
 	 */
-	rc = gaudi2_set_dram_properties(hdev);
+	rc = hdev->asic_funcs->set_dram_properties(hdev);
 	if (rc)
 		return rc;
 
@@ -10467,6 +10467,7 @@ static const struct hl_asic_funcs gaudi2_funcs = {
 	.set_dram_bar_base = gaudi2_set_hbm_bar_base,
 	.set_engine_cores = gaudi2_set_engine_cores,
 	.send_device_activity = gaudi2_send_device_activity,
+	.set_dram_properties = gaudi2_set_dram_properties,
 };
 
 void gaudi2_set_asic_funcs(struct hl_device *hdev)
diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index 0f083fcf81a6..ee0c7db16270 100644
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -5420,6 +5420,11 @@ static int goya_scrub_device_dram(struct hl_device *hdev, u64 val)
 	return -EOPNOTSUPP;
 }
 
+static int goya_set_dram_properties(struct hl_device *hdev)
+{
+	return 0;
+}
+
 static int goya_send_device_activity(struct hl_device *hdev, bool open)
 {
 	return 0;
@@ -5518,6 +5523,7 @@ static const struct hl_asic_funcs goya_funcs = {
 	.access_dev_mem = hl_access_dev_mem,
 	.set_dram_bar_base = goya_set_ddr_bar_base,
 	.send_device_activity = goya_send_device_activity,
+	.set_dram_properties = goya_set_dram_properties,
 };
 
 /*
-- 
2.25.1