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Diffstat (limited to 'drivers/staging/octeon/cvmx-fau.h')
| -rw-r--r-- | drivers/staging/octeon/cvmx-fau.h | 597 |
1 files changed, 0 insertions, 597 deletions
diff --git a/drivers/staging/octeon/cvmx-fau.h b/drivers/staging/octeon/cvmx-fau.h deleted file mode 100644 index a6939fc8ba18..000000000000 --- a/drivers/staging/octeon/cvmx-fau.h +++ /dev/null @@ -1,597 +0,0 @@ -/***********************license start*************** - * Author: Cavium Networks - * - * Contact: support@caviumnetworks.com - * This file is part of the OCTEON SDK - * - * Copyright (c) 2003-2008 Cavium Networks - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, Version 2, as - * published by the Free Software Foundation. - * - * This file is distributed in the hope that it will be useful, but - * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or - * NONINFRINGEMENT. See the GNU General Public License for more - * details. - * - * You should have received a copy of the GNU General Public License - * along with this file; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * or visit http://www.gnu.org/licenses/. - * - * This file may also be available under a different license from Cavium. - * Contact Cavium Networks for more information - ***********************license end**************************************/ - -/* - * Interface to the hardware Fetch and Add Unit. - */ - -#ifndef __CVMX_FAU_H__ -#define __CVMX_FAU_H__ - -/* - * Octeon Fetch and Add Unit (FAU) - */ - -#define CVMX_FAU_LOAD_IO_ADDRESS cvmx_build_io_address(0x1e, 0) -#define CVMX_FAU_BITS_SCRADDR 63, 56 -#define CVMX_FAU_BITS_LEN 55, 48 -#define CVMX_FAU_BITS_INEVAL 35, 14 -#define CVMX_FAU_BITS_TAGWAIT 13, 13 -#define CVMX_FAU_BITS_NOADD 13, 13 -#define CVMX_FAU_BITS_SIZE 12, 11 -#define CVMX_FAU_BITS_REGISTER 10, 0 - -typedef enum { - CVMX_FAU_OP_SIZE_8 = 0, - CVMX_FAU_OP_SIZE_16 = 1, - CVMX_FAU_OP_SIZE_32 = 2, - CVMX_FAU_OP_SIZE_64 = 3 -} cvmx_fau_op_size_t; - -/** - * Tagwait return definition. If a timeout occurs, the error - * bit will be set. Otherwise the value of the register before - * the update will be returned. - */ -typedef struct { - uint64_t error:1; - int64_t value:63; -} cvmx_fau_tagwait64_t; - -/** - * Tagwait return definition. If a timeout occurs, the error - * bit will be set. Otherwise the value of the register before - * the update will be returned. - */ -typedef struct { - uint64_t error:1; - int32_t value:31; -} cvmx_fau_tagwait32_t; - -/** - * Tagwait return definition. If a timeout occurs, the error - * bit will be set. Otherwise the value of the register before - * the update will be returned. - */ -typedef struct { - uint64_t error:1; - int16_t value:15; -} cvmx_fau_tagwait16_t; - -/** - * Tagwait return definition. If a timeout occurs, the error - * bit will be set. Otherwise the value of the register before - * the update will be returned. - */ -typedef struct { - uint64_t error:1; - int8_t value:7; -} cvmx_fau_tagwait8_t; - -/** - * Asynchronous tagwait return definition. If a timeout occurs, - * the error bit will be set. Otherwise the value of the - * register before the update will be returned. - */ -typedef union { - uint64_t u64; - struct { - uint64_t invalid:1; - uint64_t data:63; /* unpredictable if invalid is set */ - } s; -} cvmx_fau_async_tagwait_result_t; - -/** - * Builds a store I/O address for writing to the FAU - * - * @noadd: 0 = Store value is atomically added to the current value - * 1 = Store value is atomically written over the current value - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 2 for 16 bit access. - * - Step by 4 for 32 bit access. - * - Step by 8 for 64 bit access. - * Returns Address to store for atomic update - */ -static inline uint64_t __cvmx_fau_store_address(uint64_t noadd, uint64_t reg) -{ - return CVMX_ADD_IO_SEG(CVMX_FAU_LOAD_IO_ADDRESS) | - cvmx_build_bits(CVMX_FAU_BITS_NOADD, noadd) | - cvmx_build_bits(CVMX_FAU_BITS_REGISTER, reg); -} - -/** - * Builds a I/O address for accessing the FAU - * - * @tagwait: Should the atomic add wait for the current tag switch - * operation to complete. - * - 0 = Don't wait - * - 1 = Wait for tag switch to complete - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 2 for 16 bit access. - * - Step by 4 for 32 bit access. - * - Step by 8 for 64 bit access. - * @value: Signed value to add. - * Note: When performing 32 and 64 bit access, only the low - * 22 bits are available. - * Returns Address to read from for atomic update - */ -static inline uint64_t __cvmx_fau_atomic_address(uint64_t tagwait, uint64_t reg, - int64_t value) -{ - return CVMX_ADD_IO_SEG(CVMX_FAU_LOAD_IO_ADDRESS) | - cvmx_build_bits(CVMX_FAU_BITS_INEVAL, value) | - cvmx_build_bits(CVMX_FAU_BITS_TAGWAIT, tagwait) | - cvmx_build_bits(CVMX_FAU_BITS_REGISTER, reg); -} - -/** - * Perform an atomic 64 bit add - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 8 for 64 bit access. - * @value: Signed value to add. - * Note: Only the low 22 bits are available. - * Returns Value of the register before the update - */ -static inline int64_t cvmx_fau_fetch_and_add64(cvmx_fau_reg_64_t reg, - int64_t value) -{ - return cvmx_read64_int64(__cvmx_fau_atomic_address(0, reg, value)); -} - -/** - * Perform an atomic 32 bit add - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 4 for 32 bit access. - * @value: Signed value to add. - * Note: Only the low 22 bits are available. - * Returns Value of the register before the update - */ -static inline int32_t cvmx_fau_fetch_and_add32(cvmx_fau_reg_32_t reg, - int32_t value) -{ - return cvmx_read64_int32(__cvmx_fau_atomic_address(0, reg, value)); -} - -/** - * Perform an atomic 16 bit add - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 2 for 16 bit access. - * @value: Signed value to add. - * Returns Value of the register before the update - */ -static inline int16_t cvmx_fau_fetch_and_add16(cvmx_fau_reg_16_t reg, - int16_t value) -{ - return cvmx_read64_int16(__cvmx_fau_atomic_address(0, reg, value)); -} - -/** - * Perform an atomic 8 bit add - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * @value: Signed value to add. - * Returns Value of the register before the update - */ -static inline int8_t cvmx_fau_fetch_and_add8(cvmx_fau_reg_8_t reg, int8_t value) -{ - return cvmx_read64_int8(__cvmx_fau_atomic_address(0, reg, value)); -} - -/** - * Perform an atomic 64 bit add after the current tag switch - * completes - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 8 for 64 bit access. - * @value: Signed value to add. - * Note: Only the low 22 bits are available. - * Returns If a timeout occurs, the error bit will be set. Otherwise - * the value of the register before the update will be - * returned - */ -static inline cvmx_fau_tagwait64_t -cvmx_fau_tagwait_fetch_and_add64(cvmx_fau_reg_64_t reg, int64_t value) -{ - union { - uint64_t i64; - cvmx_fau_tagwait64_t t; - } result; - result.i64 = - cvmx_read64_int64(__cvmx_fau_atomic_address(1, reg, value)); - return result.t; -} - -/** - * Perform an atomic 32 bit add after the current tag switch - * completes - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 4 for 32 bit access. - * @value: Signed value to add. - * Note: Only the low 22 bits are available. - * Returns If a timeout occurs, the error bit will be set. Otherwise - * the value of the register before the update will be - * returned - */ -static inline cvmx_fau_tagwait32_t -cvmx_fau_tagwait_fetch_and_add32(cvmx_fau_reg_32_t reg, int32_t value) -{ - union { - uint64_t i32; - cvmx_fau_tagwait32_t t; - } result; - result.i32 = - cvmx_read64_int32(__cvmx_fau_atomic_address(1, reg, value)); - return result.t; -} - -/** - * Perform an atomic 16 bit add after the current tag switch - * completes - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 2 for 16 bit access. - * @value: Signed value to add. - * Returns If a timeout occurs, the error bit will be set. Otherwise - * the value of the register before the update will be - * returned - */ -static inline cvmx_fau_tagwait16_t -cvmx_fau_tagwait_fetch_and_add16(cvmx_fau_reg_16_t reg, int16_t value) -{ - union { - uint64_t i16; - cvmx_fau_tagwait16_t t; - } result; - result.i16 = - cvmx_read64_int16(__cvmx_fau_atomic_address(1, reg, value)); - return result.t; -} - -/** - * Perform an atomic 8 bit add after the current tag switch - * completes - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * @value: Signed value to add. - * Returns If a timeout occurs, the error bit will be set. Otherwise - * the value of the register before the update will be - * returned - */ -static inline cvmx_fau_tagwait8_t -cvmx_fau_tagwait_fetch_and_add8(cvmx_fau_reg_8_t reg, int8_t value) -{ - union { - uint64_t i8; - cvmx_fau_tagwait8_t t; - } result; - result.i8 = cvmx_read64_int8(__cvmx_fau_atomic_address(1, reg, value)); - return result.t; -} - -/** - * Builds I/O data for async operations - * - * @scraddr: Scratch pad byte address to write to. Must be 8 byte aligned - * @value: Signed value to add. - * Note: When performing 32 and 64 bit access, only the low - * 22 bits are available. - * @tagwait: Should the atomic add wait for the current tag switch - * operation to complete. - * - 0 = Don't wait - * - 1 = Wait for tag switch to complete - * @size: The size of the operation: - * - CVMX_FAU_OP_SIZE_8 (0) = 8 bits - * - CVMX_FAU_OP_SIZE_16 (1) = 16 bits - * - CVMX_FAU_OP_SIZE_32 (2) = 32 bits - * - CVMX_FAU_OP_SIZE_64 (3) = 64 bits - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 2 for 16 bit access. - * - Step by 4 for 32 bit access. - * - Step by 8 for 64 bit access. - * Returns Data to write using cvmx_send_single - */ -static inline uint64_t __cvmx_fau_iobdma_data(uint64_t scraddr, int64_t value, - uint64_t tagwait, - cvmx_fau_op_size_t size, - uint64_t reg) -{ - return CVMX_FAU_LOAD_IO_ADDRESS | - cvmx_build_bits(CVMX_FAU_BITS_SCRADDR, scraddr >> 3) | - cvmx_build_bits(CVMX_FAU_BITS_LEN, 1) | - cvmx_build_bits(CVMX_FAU_BITS_INEVAL, value) | - cvmx_build_bits(CVMX_FAU_BITS_TAGWAIT, tagwait) | - cvmx_build_bits(CVMX_FAU_BITS_SIZE, size) | - cvmx_build_bits(CVMX_FAU_BITS_REGISTER, reg); -} - -/** - * Perform an async atomic 64 bit add. The old value is - * placed in the scratch memory at byte address scraddr. - * - * @scraddr: Scratch memory byte address to put response in. - * Must be 8 byte aligned. - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 8 for 64 bit access. - * @value: Signed value to add. - * Note: Only the low 22 bits are available. - * Returns Placed in the scratch pad register - */ -static inline void cvmx_fau_async_fetch_and_add64(uint64_t scraddr, - cvmx_fau_reg_64_t reg, - int64_t value) -{ - cvmx_send_single(__cvmx_fau_iobdma_data - (scraddr, value, 0, CVMX_FAU_OP_SIZE_64, reg)); -} - -/** - * Perform an async atomic 32 bit add. The old value is - * placed in the scratch memory at byte address scraddr. - * - * @scraddr: Scratch memory byte address to put response in. - * Must be 8 byte aligned. - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 4 for 32 bit access. - * @value: Signed value to add. - * Note: Only the low 22 bits are available. - * Returns Placed in the scratch pad register - */ -static inline void cvmx_fau_async_fetch_and_add32(uint64_t scraddr, - cvmx_fau_reg_32_t reg, - int32_t value) -{ - cvmx_send_single(__cvmx_fau_iobdma_data - (scraddr, value, 0, CVMX_FAU_OP_SIZE_32, reg)); -} - -/** - * Perform an async atomic 16 bit add. The old value is - * placed in the scratch memory at byte address scraddr. - * - * @scraddr: Scratch memory byte address to put response in. - * Must be 8 byte aligned. - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 2 for 16 bit access. - * @value: Signed value to add. - * Returns Placed in the scratch pad register - */ -static inline void cvmx_fau_async_fetch_and_add16(uint64_t scraddr, - cvmx_fau_reg_16_t reg, - int16_t value) -{ - cvmx_send_single(__cvmx_fau_iobdma_data - (scraddr, value, 0, CVMX_FAU_OP_SIZE_16, reg)); -} - -/** - * Perform an async atomic 8 bit add. The old value is - * placed in the scratch memory at byte address scraddr. - * - * @scraddr: Scratch memory byte address to put response in. - * Must be 8 byte aligned. - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * @value: Signed value to add. - * Returns Placed in the scratch pad register - */ -static inline void cvmx_fau_async_fetch_and_add8(uint64_t scraddr, - cvmx_fau_reg_8_t reg, - int8_t value) -{ - cvmx_send_single(__cvmx_fau_iobdma_data - (scraddr, value, 0, CVMX_FAU_OP_SIZE_8, reg)); -} - -/** - * Perform an async atomic 64 bit add after the current tag - * switch completes. - * - * @scraddr: Scratch memory byte address to put response in. Must be - * 8 byte aligned. If a timeout occurs, the error bit (63) - * will be set. Otherwise the value of the register before - * the update will be returned - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 8 for 64 bit access. - * @value: Signed value to add. - * Note: Only the low 22 bits are available. - * Returns Placed in the scratch pad register - */ -static inline void cvmx_fau_async_tagwait_fetch_and_add64(uint64_t scraddr, - cvmx_fau_reg_64_t reg, - int64_t value) -{ - cvmx_send_single(__cvmx_fau_iobdma_data - (scraddr, value, 1, CVMX_FAU_OP_SIZE_64, reg)); -} - -/** - * Perform an async atomic 32 bit add after the current tag - * switch completes. - * - * @scraddr: Scratch memory byte address to put response in. Must be - * 8 byte aligned. If a timeout occurs, the error bit (63) - * will be set. Otherwise the value of the register before - * the update will be returned - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 4 for 32 bit access. - * @value: Signed value to add. - * Note: Only the low 22 bits are available. - * Returns Placed in the scratch pad register - */ -static inline void cvmx_fau_async_tagwait_fetch_and_add32(uint64_t scraddr, - cvmx_fau_reg_32_t reg, - int32_t value) -{ - cvmx_send_single(__cvmx_fau_iobdma_data - (scraddr, value, 1, CVMX_FAU_OP_SIZE_32, reg)); -} - -/** - * Perform an async atomic 16 bit add after the current tag - * switch completes. - * - * @scraddr: Scratch memory byte address to put response in. Must be - * 8 byte aligned. If a timeout occurs, the error bit (63) - * will be set. Otherwise the value of the register before - * the update will be returned - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 2 for 16 bit access. - * @value: Signed value to add. - * - * Returns Placed in the scratch pad register - */ -static inline void cvmx_fau_async_tagwait_fetch_and_add16(uint64_t scraddr, - cvmx_fau_reg_16_t reg, - int16_t value) -{ - cvmx_send_single(__cvmx_fau_iobdma_data - (scraddr, value, 1, CVMX_FAU_OP_SIZE_16, reg)); -} - -/** - * Perform an async atomic 8 bit add after the current tag - * switch completes. - * - * @scraddr: Scratch memory byte address to put response in. Must be - * 8 byte aligned. If a timeout occurs, the error bit (63) - * will be set. Otherwise the value of the register before - * the update will be returned - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * @value: Signed value to add. - * - * Returns Placed in the scratch pad register - */ -static inline void cvmx_fau_async_tagwait_fetch_and_add8(uint64_t scraddr, - cvmx_fau_reg_8_t reg, - int8_t value) -{ - cvmx_send_single(__cvmx_fau_iobdma_data - (scraddr, value, 1, CVMX_FAU_OP_SIZE_8, reg)); -} - -/** - * Perform an atomic 64 bit add - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 8 for 64 bit access. - * @value: Signed value to add. - */ -static inline void cvmx_fau_atomic_add64(cvmx_fau_reg_64_t reg, int64_t value) -{ - cvmx_write64_int64(__cvmx_fau_store_address(0, reg), value); -} - -/** - * Perform an atomic 32 bit add - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 4 for 32 bit access. - * @value: Signed value to add. - */ -static inline void cvmx_fau_atomic_add32(cvmx_fau_reg_32_t reg, int32_t value) -{ - cvmx_write64_int32(__cvmx_fau_store_address(0, reg), value); -} - -/** - * Perform an atomic 16 bit add - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 2 for 16 bit access. - * @value: Signed value to add. - */ -static inline void cvmx_fau_atomic_add16(cvmx_fau_reg_16_t reg, int16_t value) -{ - cvmx_write64_int16(__cvmx_fau_store_address(0, reg), value); -} - -/** - * Perform an atomic 8 bit add - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * @value: Signed value to add. - */ -static inline void cvmx_fau_atomic_add8(cvmx_fau_reg_8_t reg, int8_t value) -{ - cvmx_write64_int8(__cvmx_fau_store_address(0, reg), value); -} - -/** - * Perform an atomic 64 bit write - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 8 for 64 bit access. - * @value: Signed value to write. - */ -static inline void cvmx_fau_atomic_write64(cvmx_fau_reg_64_t reg, int64_t value) -{ - cvmx_write64_int64(__cvmx_fau_store_address(1, reg), value); -} - -/** - * Perform an atomic 32 bit write - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 4 for 32 bit access. - * @value: Signed value to write. - */ -static inline void cvmx_fau_atomic_write32(cvmx_fau_reg_32_t reg, int32_t value) -{ - cvmx_write64_int32(__cvmx_fau_store_address(1, reg), value); -} - -/** - * Perform an atomic 16 bit write - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * - Step by 2 for 16 bit access. - * @value: Signed value to write. - */ -static inline void cvmx_fau_atomic_write16(cvmx_fau_reg_16_t reg, int16_t value) -{ - cvmx_write64_int16(__cvmx_fau_store_address(1, reg), value); -} - -/** - * Perform an atomic 8 bit write - * - * @reg: FAU atomic register to access. 0 <= reg < 2048. - * @value: Signed value to write. - */ -static inline void cvmx_fau_atomic_write8(cvmx_fau_reg_8_t reg, int8_t value) -{ - cvmx_write64_int8(__cvmx_fau_store_address(1, reg), value); -} - -#endif /* __CVMX_FAU_H__ */ |