diff options
Diffstat (limited to 'src/vendorcode/cavium/include/bdk/libbdk-os')
| -rw-r--r-- | src/vendorcode/cavium/include/bdk/libbdk-os/bdk-init.h | 194 | ||||
| -rw-r--r-- | src/vendorcode/cavium/include/bdk/libbdk-os/bdk-thread.h | 122 |
2 files changed, 316 insertions, 0 deletions
diff --git a/src/vendorcode/cavium/include/bdk/libbdk-os/bdk-init.h b/src/vendorcode/cavium/include/bdk/libbdk-os/bdk-init.h new file mode 100644 index 0000000000..834f8970f1 --- /dev/null +++ b/src/vendorcode/cavium/include/bdk/libbdk-os/bdk-init.h @@ -0,0 +1,194 @@ +/***********************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 + * + * Core initialization functions + * + * <hr>$Revision: 49448 $<hr> + * + * @defgroup thread Threading library + * @{ + */ + +/** + * Call this function to take secondary cores out of reset and have + * them start running threads + * + * @param node Node to use in a Numa setup. Can be an exact ID or a special + * value. + * @param coremask Cores to start. Zero is a shortcut for all. + * + * @return Zero on success, negative on failure. + */ +extern int bdk_init_cores(bdk_node_t node, uint64_t coremask); + +/** + * Put cores back in reset and power them down + * + * @param node Node to update + * @param coremask Each bit will be a core put in reset. Cores already in reset are unaffected + * + * @return Zero on success, negative on failure + */ +extern int bdk_reset_cores(bdk_node_t node, uint64_t coremask); + +/** + * Call this function to take secondary nodes and cores out of + * reset and have them start running threads + * + * @param skip_cores If non-zero, cores are not started. Only the nodes are setup + * @param ccpi_sw_gbaud + * If CCPI is in software mode, this is the speed the CCPI QLMs will be configured + * for + * + * @return Zero on success, negative on failure. + */ +extern int bdk_init_nodes(int skip_cores, int ccpi_sw_gbaud); + +/** + * Called very early in during init of both the master and slave. It performs one + * time init of CCPI QLM and link parameters. It must only be called once per + * boot. + * + * @param is_master Non-zero if the caller is the master node + */ +extern void __bdk_init_ccpi_early(int is_master); + +/** + * Brings the CCPI lanes and links into an operational state without perofrming + * node discovery and enumeration. After this function succeeds, CCPI lanes and + * links are ready for traffic, but node routing has not been setup. + * + * Note this function runs on the slave node with the BDK code not at its link + * address. Many normal BDK functions do not work properly. Be careful. + * + * @param is_master Non-zero when run on the master node. Zero when run on the slave + * @param gbaud Baud rate to run links at. This is only used if the QLMs are in software init + * mode. If they are strapped for hardware init, the strapping speed is used. + * @param ccpi_trace Non-zero to enable CCPI tracing. Note that tracing doesn't use the standard + * bdk-trace functions. This code runs on the secondary node before we are + * multi-node, and the C library doesn't work right. + * + * @return Zero on success, negative on failure. Zero means CCPI lanes and links are + * functional. + */ +extern int __bdk_init_ccpi_connection(int is_master, uint64_t gbaud, int ccpi_trace); + +/** + * Brings the CCPI lanes and links into an operational state without enabling + * multi-node operation. Calling this function when the CCPI links are already + * up does nothing. This function must return zero before you can go multi-node + * by calling bdk_init_ccpi_multinode(). + * + * @param gbaud Baud rate to run links at. This is only used if the QLMs are in software init + * mode. If they are strapped for hardware init, the strapping speed is used. + * + * @return Zero on success, negative on failure. Zero means all CCPI links are functional. + */ +extern int __bdk_init_ccpi_links(uint64_t gbaud) BDK_WEAK; + +/** + * Once CCPI links are operational, this function transitions the system to a + * multi-node setup. Note that this function only performs the low level CCPI + * details, not BDK software setup on the other nodes. Call bdk_init_nodes() + * for high level access to multi-node. + * + * @return Zero on success, negative on failure + */ +extern int __bdk_init_ccpi_multinode(void) BDK_WEAK; + +/** + * This function is the first function run on all cores once the + * threading system takes over. + * + * @param arg + * @param arg1 + */ +extern void __bdk_init_main(int arg, void *arg1); + +/** + * Perform one time initialization for a node. Called for each + * node from the master node. + */ +extern void __bdk_init_node(bdk_node_t node); + +/** + * Set the baud rate on a UART + * + * @param node Node to use in a Numa setup. Can be an exact ID or a special + * value. + * @param uart uart to set + * @param baudrate Baud rate (9600, 19200, 115200, etc) + * @param use_flow_control + * Non zero if hardware flow control should be enabled + */ +extern void bdk_set_baudrate(bdk_node_t node, int uart, int baudrate, int use_flow_control); + +/** + * Get the coremask of the cores actively running the BDK. Doesn't count cores + * that aren't booted. + * + * @param node Node to coremask the count for + * + * @return 64bit bitmask + */ +extern uint64_t bdk_get_running_coremask(bdk_node_t node); + +/** + * Return the number of cores actively running in the BDK for the given node + * + * @param node Node to get the core count for + * + * @return Number of cores running. Doesn't count cores that aren't booted + */ +extern int bdk_get_num_running_cores(bdk_node_t node); + +#ifndef BDK_SHOW_BOOT_BANNERS +#define BDK_SHOW_BOOT_BANNERS 1 +#endif + +#define BDK_UART_BAUDRATE 115200 +//#define BDK_UART_BAUDRATE 921600 + +extern uint64_t __bdk_init_reg_x0; /* The contents of X0 when this image started */ +extern uint64_t __bdk_init_reg_x1; /* The contents of X1 when this image started */ + +/** @} */ diff --git a/src/vendorcode/cavium/include/bdk/libbdk-os/bdk-thread.h b/src/vendorcode/cavium/include/bdk/libbdk-os/bdk-thread.h new file mode 100644 index 0000000000..ef62dd7fe3 --- /dev/null +++ b/src/vendorcode/cavium/include/bdk/libbdk-os/bdk-thread.h @@ -0,0 +1,122 @@ +/***********************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 controlling threads. + * + * <hr>$Revision: 49448 $<hr> + * + * @defgroup thread Threading library + * @{ + */ + +/* Use a larger stack size for main() as it tends to do lots of + extra stuff. For example, DDR init requires a bigger stack */ +#define BDK_THREAD_MAIN_STACK_SIZE 16384 +#define BDK_THREAD_DEFAULT_STACK_SIZE 8192 + +typedef void (*bdk_thread_func_t)(int arg, void *arg1); + +extern int bdk_thread_initialize(void); +extern void bdk_thread_yield(void); +extern int bdk_thread_create(bdk_node_t node, uint64_t coremask, bdk_thread_func_t func, int arg0, void *arg1, int stack_size); +extern void bdk_thread_destroy(void) __attribute__ ((noreturn)); +extern void bdk_thread_first(bdk_thread_func_t func, int arg0, void *arg1, int stack_size) __attribute__ ((noreturn)); + +/** + * Number of the Core on which the program is currently running. + * + * @return Number of cores + */ +static inline int bdk_get_core_num(void) __attribute__ ((always_inline)); +static inline int bdk_get_core_num(void) +{ + if (CAVIUM_IS_MODEL(CAVIUM_CN8XXX)) + { + int mpidr_el1; + BDK_MRS(MPIDR_EL1, mpidr_el1); + /* Core is 4 bits from AFF0 and rest from AFF1 */ + int core_num; + core_num = mpidr_el1 & 0xf; + core_num |= (mpidr_el1 & 0xff00) >> 4; + return core_num; + } + else + { + uint64_t cvm_pn_el1; + BDK_MRS(s3_0_c11_c4_2, cvm_pn_el1); + return cvm_pn_el1 & 0xffff; + } +} + +/** + * Return a mask representing this core in a 64bit bitmask + * + * @return + */ +static inline uint64_t bdk_core_to_mask(void) __attribute__ ((always_inline)); +static inline uint64_t bdk_core_to_mask(void) +{ + return 1ull << bdk_get_core_num(); +} + +static inline int bdk_is_boot_core(void) +{ + const int master = 0x80000000 | (bdk_numa_master() << 16); + int mpidr_el1; + BDK_MRS_NV(MPIDR_EL1, mpidr_el1); + return mpidr_el1 == master; +} + + +static inline void *bdk_thread_get_id(void) __attribute__ ((always_inline)); +static inline void *bdk_thread_get_id(void) +{ + uint64_t current; + BDK_MRS_NV(TPIDR_EL3, current); + /* If we haven't started threading yet use the core number. Add one + so the thread id is never zero */ + if (!current) + current = bdk_get_core_num() + 1; + return (void*)current; +} + +/** @} */ |