| /* |
| * Copyright (c) 2024 Intel Corporation |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <offsets.h> |
| |
| #include <xtensa/config/tie.h> |
| #include <xtensa/config/tie-asm.h> |
| |
| /* |
| * Load the HiFi registers from the hifi buffer in the BSA. Round the address |
| * of this buffer up to XCHAL_CP1_SA_ALIGN bytes to guarantee the necessary |
| * alignment. |
| * |
| * Upon entry ... |
| * A0 - return address (do not modify) |
| * A1 - address of BSA (do not modify) |
| * A2 - available for use |
| * A3 - available for use |
| */ |
| .global _xtensa_hifi_load |
| .align 4 |
| _xtensa_hifi_load: |
| addi a2, a1, (___xtensa_irq_bsa_t_hifi_OFFSET + XCHAL_CP1_SA_ALIGN - 1) |
| movi a3, ~(XCHAL_CP1_SA_ALIGN - 1) |
| and a2, a2, a3 |
| |
| xchal_cp1_load a2 a3 a3 a3 a3 /* Only A2 and A3 are used by macro */ |
| |
| ret |
| |
| /* |
| * Save the HiFi registers into the hifi buffer in the BSA. Round the address |
| * of this buffer up to XCHAL_CP1_SA_ALIGN bytes to guarantee the necessary |
| * alignment. |
| * |
| * A0 - return address (do not modify) |
| * A1 - address of BSA (do not modify) |
| * A2 - available for use |
| * A3 - available for use |
| */ |
| .global _xtensa_hifi_save |
| .align 4 |
| _xtensa_hifi_save: |
| addi a2, a1, (___xtensa_irq_bsa_t_hifi_OFFSET + XCHAL_CP1_SA_ALIGN - 1) |
| movi a3, ~(XCHAL_CP1_SA_ALIGN - 1) |
| and a2, a2, a3 |
| |
| xchal_cp1_store a2 a3 a3 a3 a3 /* Only A2 and A3 are used by macro */ |
| |
| ret |
