opensbi.git/lib, branch v0.2

include: Add PRILX define to help print unsigned long

2019-02-20T06:32:40Z

The unsigned long is always machine word size. This means it is 4 bytes on 32bit system and 8 bytes on 64bit system. This patch adds PRILX define for sbi_printf() which will help us print unsigned long without worrying whether it is 32bit or 64bit system. Signed-off-by: Anup Patel

lib: Fix mask shift in sbi_ipi_send_many()

2019-02-18T13:09:02Z

The mask shift in for-loop of sbi_ipi_send_many() is broken with commit 918c1354b75c74b62f67c4e929551d643f035443 ("lib: Improve delivery of SBI_IPI_EVENT_HALT") This patch fix it. Signed-off-by: Anup Patel

lib: Fix small typo on sbi_ipi.c

2019-02-18T03:51:58Z

lib: Improve delivery of SBI_IPI_EVENT_HALT

2019-02-18T03:51:58Z

When sbi_ipi_send_many gets called with the current hartid included on pmask (or when pmask is NULL), and we send a HALT event, since the for loop works sequentially over all hartids on the mask, we may send a HALT event to the current hart before the loop finishes. So we will halt the current hart before it can deliver a HALT IPI to the rest and some harts will remain active. Make sure we send an IPI to the current hart after we've finished with everybody else. Signed-off-by: Nick Kossifidis

lib: Send IPI for all harts to hang on system shutdown

2019-02-18T03:51:58Z

In case the platform specific method for shutting down the system fails (or is not implemented), at least make sure that all harts hang instead of just the current hart. Signed-off-by: Nick Kossifidis

lib: Use CSR_ instead of for csr_*()

2019-02-14T04:01:18Z

Some older toolchains may not have all the csr's defined. Update all the csr functions to use the CSR_ #define values instead of the toolchain defined values. Suggested-by: Olof Johansson Signed-off-by: Atish Patra

sbi_emulate_csr: Shift sbi_timer_value directly

2019-02-08T03:48:46Z

csr_val is a tartget length based variable, so on 32-bit devices it's only 32-bits. To avoid clearing the entire register perform both steps in a single line. Signed-off-by: Alistair Francis

sbi_ecall: Fix logical OR to be bitwise OR

2019-02-08T03:48:46Z

Signed-off-by: Alistair Francis

riscv_asm.h: Use CSR_ instead of for csr_read()

2019-02-05T13:23:09Z

Some toolchains might not have all the CSRs available (as seen with GCC 7.2). So, instead use the defined CSR_ values. Signed-off-by: Olof Johansson

include: Add separate header for OpenSBI version

2019-01-25T19:05:49Z

Currently, the OpenSBI version is in top-level Makefile so firmware linking to OpenSBI static library have no-way to know OpenSBI version. This patch moves OpenSBI version from top-level Makefile to sbi/sbi_version.h header which provides OPENSBI_VERSION_MAJOR and OPENSBI_VERSION_MINOR defines. NOTE: the SBI spec (or SBI ecall interface) version is different. The SBI spec version is provided by functions sbi_ecall_version_major() and sbi_ecall_version_minor(). Signed-off-by: Anup Patel