Lukas Auer fa33f08fd6 riscv: add infrastructure for calling functions on other harts ... Harts on RISC-V boot independently, U-Boot is responsible for managing them. Functions are called on other harts with smp_call_function(), which sends inter-processor interrupts (IPIs) to all other available harts. Available harts are those marked as available in the device tree and present in the available_harts mask stored in global data. The available_harts mask is used to register all harts that have entered U-Boot. Functions are specified with their address and two function arguments (argument 2 and 3). The first function argument is always the hart ID of the hart calling the function. On the other harts, the IPI interrupt handler handle_ipi() must be called on software interrupts to handle the request and call the specified function. Functions are stored in the ipi_data data structure. Every hart has its own data structure in global data. While this is not required at the moment (all harts are expected to boot Linux), this does allow future expansion, where other harts may be used for monitoring or other tasks. Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>		2019-04-08 09:44:25 +08:00
..
arch-generic	riscv: Add place-holder asm/arch/clk.h for driver compilation	2019-02-27 09:12:33 +08:00
barrier.h	riscv: make use of the barrier functions from Linux	2018-11-26 13:57:30 +08:00
bitops.h	riscv: Define PLATFORM__CLEAR_BIT for generic_clear_bit()	2018-05-15 21:44:05 -04:00
byteorder.h	riscv: nx25: include: Add header files to support RISC-V	2018-01-12 08:05:12 -05:00
cache.h	riscv: cache: Implement i/dcache [status, enable, disable]	2018-11-26 13:58:01 +08:00
config.h	riscv: Enable CONFIG_SYS_BOOT_RAMDISK_HIGH for using initrd	2019-02-27 09:12:34 +08:00
csr.h	riscv: Add indirect stringification to csr_xxx ops	2018-12-18 09:56:27 +08:00
dma-mapping.h	riscv: Add asm/dma-mapping.h for DMA mappings	2019-02-27 09:12:33 +08:00
encoding.h	riscv: Add exception codes for xcause register	2018-12-18 09:56:27 +08:00
global_data.h	riscv: add infrastructure for calling functions on other harts	2019-04-08 09:44:25 +08:00
io.h	riscv: do not reimplement generic io functions	2018-11-26 13:57:30 +08:00
linkage.h	SPDX: Convert all of our single license tags to Linux Kernel style	2018-05-07 09:34:12 -04:00
posix_types.h	riscv: fix use of incorrectly sized variables	2018-11-26 13:57:29 +08:00
processor.h	riscv: nx25: include: Add header files to support RISC-V	2018-01-12 08:05:12 -05:00
ptrace.h	riscv: checkpatch: Fix alignment should match open parenthesis	2018-03-30 13:13:22 +08:00
sections.h	SPDX: Convert all of our single license tags to Linux Kernel style	2018-05-07 09:34:12 -04:00
setjmp.h	SPDX: Convert single license tags to Linux Kernel style	2018-05-29 14:44:21 +08:00
smp.h	riscv: add infrastructure for calling functions on other harts	2019-04-08 09:44:25 +08:00
string.h	riscv: checkpatch: Fix Macro argument reuse	2018-03-30 13:13:22 +08:00
syscon.h	riscv: Add a SYSCON driver for SiFive's Core Local Interruptor	2018-12-18 09:56:26 +08:00
system.h	SPDX: Convert all of our single license tags to Linux Kernel style	2018-05-07 09:34:12 -04:00
types.h	riscv: fix use of incorrectly sized variables	2018-11-26 13:57:29 +08:00
u-boot-riscv.h	riscv: Add board_quiesce_devices stub	2018-05-29 14:43:12 +08:00
u-boot.h	riscv: Remove mach type	2018-10-03 17:47:19 +08:00
unaligned.h	riscv: nx25: include: Add header files to support RISC-V	2018-01-12 08:05:12 -05:00