From: Ofir Bitton <obitton@habana.ai>
Date: Thu, 5 Aug 2021 14:36:24 +0000 (+0300)
Subject: habanalabs/gaudi: fetch TPC/MME ECC errors from F/W
X-Git-Tag: v5.15~302^2^2~13
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=816a6c6d99a3758baed317263efe7efd91770004;p=platform%2Fkernel%2Flinux-starfive.git

habanalabs/gaudi: fetch TPC/MME ECC errors from F/W

In case F/W security is enabled driver cannot access ECC registers,
hence driver must fetch the ECC info from F/W.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
---

diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c
index a05688c..e49e6b8 100644
--- a/drivers/misc/habanalabs/gaudi/gaudi.c
+++ b/drivers/misc/habanalabs/gaudi/gaudi.c
@@ -7457,6 +7457,11 @@ static void gaudi_handle_ecc_event(struct hl_device *hdev, u16 event_type,
 	bool extract_info_from_fw;
 	int rc;
 
+	if (hdev->asic_prop.fw_security_enabled) {
+		extract_info_from_fw = true;
+		goto extract_ecc_info;
+	}
+
 	switch (event_type) {
 	case GAUDI_EVENT_PCIE_CORE_SERR ... GAUDI_EVENT_PCIE_PHY_DERR:
 	case GAUDI_EVENT_DMA0_SERR_ECC ... GAUDI_EVENT_MMU_DERR:
@@ -7529,6 +7534,7 @@ static void gaudi_handle_ecc_event(struct hl_device *hdev, u16 event_type,
 		return;
 	}
 
+extract_ecc_info:
 	if (extract_info_from_fw) {
 		ecc_address = le64_to_cpu(ecc_data->ecc_address);
 		ecc_syndrom = le64_to_cpu(ecc_data->ecc_syndrom);