1 /* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only) */ 2 /* Copyright(c) 2014 - 2020 Intel Corporation */ 3 #ifndef ADF_TRANSPORT_ACCESS_MACROS_H 4 #define ADF_TRANSPORT_ACCESS_MACROS_H 5 6 #include "adf_accel_devices.h" 7 #define ADF_RING_CONFIG_NEAR_FULL_WM 0x0A 8 #define ADF_RING_CONFIG_NEAR_EMPTY_WM 0x05 9 #define ADF_COALESCING_MIN_TIME 0x1FF 10 #define ADF_COALESCING_MAX_TIME 0xFFFFF 11 #define ADF_COALESCING_DEF_TIME 0x27FF 12 #define ADF_RING_NEAR_WATERMARK_512 0x08 13 #define ADF_RING_NEAR_WATERMARK_0 0x00 14 #define ADF_RING_EMPTY_SIG 0x7F7F7F7F 15 16 /* Valid internal ring size values */ 17 #define ADF_RING_SIZE_128 0x01 18 #define ADF_RING_SIZE_256 0x02 19 #define ADF_RING_SIZE_512 0x03 20 #define ADF_RING_SIZE_4K 0x06 21 #define ADF_RING_SIZE_16K 0x08 22 #define ADF_RING_SIZE_4M 0x10 23 #define ADF_MIN_RING_SIZE ADF_RING_SIZE_128 24 #define ADF_MAX_RING_SIZE ADF_RING_SIZE_4M 25 #define ADF_DEFAULT_RING_SIZE ADF_RING_SIZE_16K 26 27 /* Valid internal msg size values */ 28 #define ADF_MSG_SIZE_32 0x01 29 #define ADF_MSG_SIZE_64 0x02 30 #define ADF_MSG_SIZE_128 0x04 31 #define ADF_MIN_MSG_SIZE ADF_MSG_SIZE_32 32 #define ADF_MAX_MSG_SIZE ADF_MSG_SIZE_128 33 34 /* Size to bytes conversion macros for ring and msg size values */ 35 #define ADF_MSG_SIZE_TO_BYTES(SIZE) (SIZE << 5) 36 #define ADF_BYTES_TO_MSG_SIZE(SIZE) (SIZE >> 5) 37 #define ADF_SIZE_TO_RING_SIZE_IN_BYTES(SIZE) ((1 << (SIZE - 1)) << 7) 38 #define ADF_RING_SIZE_IN_BYTES_TO_SIZE(SIZE) ((1 << (SIZE - 1)) >> 7) 39 40 /* Minimum ring buffer size for memory allocation */ 41 #define ADF_RING_SIZE_BYTES_MIN(SIZE) \ 42 ((SIZE < ADF_SIZE_TO_RING_SIZE_IN_BYTES(ADF_RING_SIZE_4K)) ? \ 43 ADF_SIZE_TO_RING_SIZE_IN_BYTES(ADF_RING_SIZE_4K) : SIZE) 44 #define ADF_RING_SIZE_MODULO(SIZE) (SIZE + 0x6) 45 #define ADF_SIZE_TO_POW(SIZE) ((((SIZE & 0x4) >> 1) | ((SIZE & 0x4) >> 2) | \ 46 SIZE) & ~0x4) 47 /* Max outstanding requests */ 48 #define ADF_MAX_INFLIGHTS(RING_SIZE, MSG_SIZE) \ 49 ((((1 << (RING_SIZE - 1)) << 3) >> ADF_SIZE_TO_POW(MSG_SIZE)) - 1) 50 #define BUILD_RING_CONFIG(size) \ 51 ((ADF_RING_NEAR_WATERMARK_0 << ADF_RING_CONFIG_NEAR_FULL_WM) \ 52 | (ADF_RING_NEAR_WATERMARK_0 << ADF_RING_CONFIG_NEAR_EMPTY_WM) \ 53 | size) 54 #define BUILD_RESP_RING_CONFIG(size, watermark_nf, watermark_ne) \ 55 ((watermark_nf << ADF_RING_CONFIG_NEAR_FULL_WM) \ 56 | (watermark_ne << ADF_RING_CONFIG_NEAR_EMPTY_WM) \ 57 | size) 58 #endif 59