diff options
author | David Hendricks <dhendricks@fb.com> | 2018-03-09 13:58:27 -0800 |
---|---|---|
committer | Patrick Georgi <pgeorgi@google.com> | 2018-04-06 06:48:11 +0000 |
commit | 2004b93aed993aa02bbc588b8d82c22418ac52ec (patch) | |
tree | cdd5e95a154e2e0139474288262835a7f5847665 /src/vendorcode/cavium/include/bdk/libbdk-hal/bdk-access-native.h | |
parent | 71cbd71eb5c0e8e13b25b5d5dd2f495e7d2967eb (diff) |
soc/cavium: import raw BDK sources
This imports common BDK sources that will be used in subsequent
patches.
The BDK is licensed under BSD and will be reduced in size and optimized to
compile under coreboot.
Change-Id: Icb32ee670d9fa9e5c10f9abb298cebf616fa67ad
Signed-off-by: David Hendricks <dhendricks@fb.com>
Reviewed-on: https://review.coreboot.org/25524
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
Diffstat (limited to 'src/vendorcode/cavium/include/bdk/libbdk-hal/bdk-access-native.h')
-rw-r--r-- | src/vendorcode/cavium/include/bdk/libbdk-hal/bdk-access-native.h | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/src/vendorcode/cavium/include/bdk/libbdk-hal/bdk-access-native.h b/src/vendorcode/cavium/include/bdk/libbdk-hal/bdk-access-native.h new file mode 100644 index 0000000000..aa9d87bf37 --- /dev/null +++ b/src/vendorcode/cavium/include/bdk/libbdk-hal/bdk-access-native.h @@ -0,0 +1,155 @@ +/***********************license start*********************************** +* Copyright (c) 2003-2017 Cavium Inc. (support@cavium.com). All rights +* reserved. +* +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions are +* met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* +* * Redistributions in binary form must reproduce the above +* copyright notice, this list of conditions and the following +* disclaimer in the documentation and/or other materials provided +* with the distribution. +* +* * Neither the name of Cavium Inc. nor the names of +* its contributors may be used to endorse or promote products +* derived from this software without specific prior written +* permission. +* +* This Software, including technical data, may be subject to U.S. export +* control laws, including the U.S. Export Administration Act and its +* associated regulations, and may be subject to export or import +* regulations in other countries. +* +* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" +* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR +* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT +* TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY +* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT +* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES +* OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR +* PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, +* QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK +* ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU. +***********************license end**************************************/ + +/** + * @file + * Functions for accessing memory and CSRs when we are compiling + * natively. + * + * <hr>$Revision: 38306 $<hr> +*/ + +/** + * Convert a memory pointer (void*) into a hardware compatible + * memory address (uint64_t). Cavium hardware widgets don't + * understand logical addresses. + * + * @param ptr C style memory pointer + * @return Hardware physical address + */ +static inline uint64_t bdk_ptr_to_phys(void *ptr) __attribute__ ((pure, always_inline)); +static inline uint64_t bdk_ptr_to_phys(void *ptr) +{ + bdk_warn_if(!ptr, "bdk_ptr_to_phys() passed a NULL\n"); + return (long)ptr; +} + + +/** + * Convert a hardware physical address (uint64_t) into a + * memory pointer (void *). + * + * @param physical_address + * Hardware physical address to memory + * @return Pointer to memory + */ +static inline void *bdk_phys_to_ptr(uint64_t physical_address) __attribute__ ((pure, always_inline)); +static inline void *bdk_phys_to_ptr(uint64_t physical_address) +{ + bdk_warn_if(physical_address==0, "bdk_phys_to_ptr() passed a zero address\n"); + return (void*)(long)physical_address; +} + + +/* We have a full 64bit ABI. Writing to a 64bit address can be done with + a simple volatile pointer */ +#define BDK_BUILD_WRITE64(TYPE) \ +static inline void bdk_write64_##TYPE(uint64_t addr, TYPE##_t val) __attribute__ ((always_inline)); \ +static inline void bdk_write64_##TYPE(uint64_t addr, TYPE##_t val) \ +{ \ + *(volatile TYPE##_t *)bdk_phys_to_ptr(addr) = val; \ +} + +/* We have a full 64bit ABI. Writing to a 64bit address can be done with + a simple volatile pointer */ +#define BDK_BUILD_READ64(TYPE) \ +static inline TYPE##_t bdk_read64_##TYPE(uint64_t addr) __attribute__ ((always_inline)); \ +static inline TYPE##_t bdk_read64_##TYPE(uint64_t addr) \ +{ \ + return *(volatile TYPE##_t *)bdk_phys_to_ptr(addr); \ +} + +/* The following defines 8 functions for writing to a 64bit address. Each + takes two arguments, the address and the value to write. + bdk_write64_int64 bdk_write64_uint64 + bdk_write64_int32 bdk_write64_uint32 + bdk_write64_int16 bdk_write64_uint16 + bdk_write64_int8 bdk_write64_uint8 */ +BDK_BUILD_WRITE64(int64) +BDK_BUILD_WRITE64(int32) +BDK_BUILD_WRITE64(int16) +BDK_BUILD_WRITE64(int8) +BDK_BUILD_WRITE64(uint64) +BDK_BUILD_WRITE64(uint32) +BDK_BUILD_WRITE64(uint16) +BDK_BUILD_WRITE64(uint8) + +/* The following defines 8 functions for reading from a 64bit address. Each + takes the address as the only argument + bdk_read64_int64 bdk_read64_uint64 + bdk_read64_int32 bdk_read64_uint32 + bdk_read64_int16 bdk_read64_uint16 + bdk_read64_int8 bdk_read64_uint8 */ +BDK_BUILD_READ64(int64) +BDK_BUILD_READ64(int32) +BDK_BUILD_READ64(int16) +BDK_BUILD_READ64(int8) +BDK_BUILD_READ64(uint64) +BDK_BUILD_READ64(uint32) +BDK_BUILD_READ64(uint16) +BDK_BUILD_READ64(uint8) + + +/** + * Returns the number of bits set in the provided value. + * Simple wrapper for POP instruction. + * + * @param val 32 bit value to count set bits in + * + * @return Number of bits set + */ +static inline uint32_t bdk_pop(uint32_t val) +{ + return __builtin_popcount(val); +} + + +/** + * Returns the number of bits set in the provided value. + * Simple wrapper for DPOP instruction. + * + * @param val 64 bit value to count set bits in + * + * @return Number of bits set + */ +static inline int bdk_dpop(uint64_t val) +{ + return __builtin_popcountl(val); +} + |