feat(ethos-n): add reset type to reset SMC calls
Adds a reset type argument for the soft and hard reset SMC calls to
indicate whether to perform a full reset and setup or only halt the
Arm(R) Ethos(TM)-N NPU. For use in cases where the NPU will not be
used but must be put into a known state, such as suspending the NPU
as part of power management.
Signed-off-by: Joshua Pimm <joshua.pimm@arm.com>
Signed-off-by: Mikael Olsson <mikael.olsson@arm.com>
Change-Id: I6018af85a28b0e977166ec29d26f04739123140c
diff --git a/include/drivers/arm/ethosn.h b/include/drivers/arm/ethosn.h
index dbaf16c..ce7b2f3 100644
--- a/include/drivers/arm/ethosn.h
+++ b/include/drivers/arm/ethosn.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2021-2022, Arm Limited. All rights reserved.
+ * Copyright (c) 2021-2023, Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -39,21 +39,28 @@
/* Service version */
#define ETHOSN_VERSION_MAJOR U(2)
-#define ETHOSN_VERSION_MINOR U(0)
+#define ETHOSN_VERSION_MINOR U(1)
/* Return codes for function calls */
#define ETHOSN_SUCCESS 0
#define ETHOSN_NOT_SUPPORTED -1
/* -2 Reserved for NOT_REQUIRED */
-/* -3 Reserved for INVALID_PARAMETER */
+#define ETHOSN_INVALID_PARAMETER -3
#define ETHOSN_FAILURE -4
#define ETHOSN_UNKNOWN_CORE_ADDRESS -5
#define ETHOSN_UNKNOWN_ALLOCATOR_IDX -6
+/*
+ * Argument types for soft and hard resets to indicate whether to reset
+ * and reconfigure the NPU or only halt it
+ */
+#define ETHOSN_RESET_TYPE_FULL U(0)
+#define ETHOSN_RESET_TYPE_HALT U(1)
+
uintptr_t ethosn_smc_handler(uint32_t smc_fid,
u_register_t core_addr,
u_register_t asset_alloc_idx,
- u_register_t x3,
+ u_register_t reset_type,
u_register_t x4,
void *cookie,
void *handle,