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Diffstat (limited to 'src/vendorcode/cavium/bdk/libdram/dram-csr.h')
| -rw-r--r-- | src/vendorcode/cavium/bdk/libdram/dram-csr.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/vendorcode/cavium/bdk/libdram/dram-csr.h b/src/vendorcode/cavium/bdk/libdram/dram-csr.h new file mode 100644 index 0000000000..ffe1472a0b --- /dev/null +++ b/src/vendorcode/cavium/bdk/libdram/dram-csr.h @@ -0,0 +1,86 @@ +/***********************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**************************************/ + +/** + * Functions and macros for libdram access to CSR. These build + * on the normal BDK functions to allow logging of CSRs based on + * the libdram verbosity level. Internal use only. + */ + +/** + * Write a CSR, possibly logging it based on the verbosity + * level. You should use DRAM_CSR_WRITE() as a convientent + * wrapper. + * + * @param node + * @param csr_name + * @param type + * @param busnum + * @param size + * @param address + * @param value + */ +#ifdef DRAM_CSR_WRITE_INLINE +static inline void dram_csr_write(bdk_node_t node, const char *csr_name, bdk_csr_type_t type, int busnum, int size, uint64_t address, uint64_t value) __attribute__((always_inline)); +static inline void dram_csr_write(bdk_node_t node, const char *csr_name, bdk_csr_type_t type, int busnum, int size, uint64_t address, uint64_t value) +{ + VB_PRT(VBL_CSRS, "N%d: DDR Config %s[%016lx] => %016lx\n", node, csr_name, address, value); + bdk_csr_write(node, type, busnum, size, address, value); +} +#else +extern void dram_csr_write(bdk_node_t node, const char *csr_name, bdk_csr_type_t type, int busnum, int size, uint64_t address, uint64_t value); +#endif + +/** + * Macro to write a CSR, logging if necessary + */ +#define DRAM_CSR_WRITE(node, csr, value) \ + dram_csr_write(node, basename_##csr, bustype_##csr, busnum_##csr, sizeof(typedef_##csr), csr, value) + +/** + * Macro to make a read, modify, and write sequence easy. The "code_block" + * should be replaced with a C code block or a comma separated list of + * "name.s.field = value", without the quotes. + */ +#define DRAM_CSR_MODIFY(name, node, csr, code_block) do { \ + typedef_##csr name = {.u = bdk_csr_read(node, bustype_##csr, busnum_##csr, sizeof(typedef_##csr), csr)}; \ + code_block; \ + dram_csr_write(node, basename_##csr, bustype_##csr, busnum_##csr, sizeof(typedef_##csr), csr, name.u); \ + } while (0) + |