habanalabs: refactor razwi event notification

This event notification was compatible only with gaudi, where razwi
and page fault happens together.

To make it compatible with all ASICs, this refactor contains:

1. Razwi notification will only notify about razwi info.
   New notification will be added in future patch, to retrieve data
   about page fault error.

2. Changed razwi info structure to support all ASICs.

Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

1 files changed, 6 insertions, 25 deletions

diff --git a/drivers/misc/habanalabs/common/habanalabs.h b/drivers/misc/habanalabs/common/habanalabs.h
index 2ffb8378f565..cdc50c2c4de8 100644
--- a/drivers/misc/habanalabs/common/habanalabs.h
+++ b/drivers/misc/habanalabs/common/habanalabs.h
@@ -2925,30 +2925,6 @@ struct cs_timeout_info {
 	u64		seq;
 };
 
-/**
- * struct razwi_info - info about last razwi error occurred.
- * @timestamp: razwi timestamp.
- * @write_enable: if set writing to razwi parameters in the structure is enabled.
- *                otherwise - disabled, so the first (root cause) razwi will not be overwritten.
- * @addr: address that caused razwi.
- * @engine_id_1: engine id of the razwi initiator, if it was initiated by engine that does
- *               not have engine id it will be set to U16_MAX.
- * @engine_id_2: second engine id of razwi initiator. Might happen that razwi have 2 possible
- *               engines which one them caused the razwi. In that case, it will contain the
- *               second possible engine id, otherwise it will be set to U16_MAX.
- * @non_engine_initiator: in case the initiator of the razwi does not have engine id.
- * @type: cause of razwi, page fault or access error, otherwise it will be set to U8_MAX.
- */
-struct razwi_info {
-	ktime_t		timestamp;
-	atomic_t	write_enable;
-	u64		addr;
-	u16		engine_id_1;
-	u16		engine_id_2;
-	u8		non_engine_initiator;
-	u8		type;
-};
-
 #define MAX_QMAN_STREAMS_INFO		4
 #define OPCODE_INFO_MAX_ADDR_SIZE	8
 /**
@@ -2985,11 +2961,14 @@ struct undefined_opcode_info {
  * struct hl_error_info - holds information collected during an error.
  * @cs_timeout: CS timeout error information.
  * @razwi: razwi information.
+ * @razwi_info_recorded: if set writing to razwi information is enabled.
+ *                otherwise - disabled, so the first (root cause) razwi will not be overwritten.
  * @undef_opcode: undefined opcode information
  */
 struct hl_error_info {
 	struct cs_timeout_info		cs_timeout;
-	struct razwi_info		razwi;
+	struct hl_info_razwi_event	razwi;
+	atomic_t			razwi_info_recorded;
 	struct undefined_opcode_info	undef_opcode;
 };
 
@@ -3800,6 +3779,8 @@ hl_mmap_mem_buf_alloc(struct hl_mem_mgr *mmg,
 		      struct hl_mmap_mem_buf_behavior *behavior, gfp_t gfp,
 		      void *args);
 __printf(2, 3) void hl_engine_data_sprintf(struct engines_data *e, const char *fmt, ...);
+void hl_capture_razwi(struct hl_device *hdev, u64 addr, u16 *engine_id, u16 num_of_engines,
+			u8 flags);
 
 #ifdef CONFIG_DEBUG_FS