opensbi.git/lib/sbi_hart.c, branch v0.2

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

all: Update copyright header in all files

2019-01-24T08:37:47Z

This patch updates copyright header in all files as follows: 1. Makes "SPDX-License-Identifier: BSD-2-Clause" as first line 2. Change copyright year to 2019 for Western Digital Signed-off-by: Anup Patel

include: Rename ipi_inject() to ipi_send() for sbi_platform

2019-01-23T03:09:26Z

For better naming, we rename ipi_inject() to ipi_send() in struct sbi_platform. We also replace term "inject" with "send" in all related places. Signed-off-by: Anup Patel

lib: Remove source_hart and hartid parameter from IPI callbacks

2019-01-23T03:09:26Z

The source_hart and hartid parameter is really not required in IPI callbacks of sbi_platform because current hartid can always be obtained by calling sbi_current_hartid() API. Signed-off-by: Anup Patel

lib: Do not access mi/edeleg register if S mode is not present.

2019-01-22T04:33:49Z

As per the RISC-V ISA, mideleg and medeleg registers should not exist if S-mode is not present for a hart. We shouldn't access these CSRs if non S-mode harts. Signed-off-by: Atish Patra

lib: Move software interrupt enablement from firmware to lib

2019-01-22T04:33:49Z

The secondary hart waits for an IPI signal from the boot hart to executing boot code (hot boot). As a result, software generated interrupts have to be enabled for secondary harts before waiting for the boot hart boot completion IPI signal. Enabling software generated interrupts (IPI) can be done independently of the firmware code and moved to libsbi code so that the different firmware do not have to implement this. Signed-off-by: Atish Patra

include: Add hard FP access macros and defines

2019-01-03T22:21:08Z

This patch adds hardware floating-point (hard FP) access macros and defines. Signed-off-by: Anup Patel

Introduce hart disabled parameter in platform.

2018-12-22T06:11:21Z

As of now, uboot doesn't have support for SMP. Moreover, unleashed board has a E51 hart which doesn't not support S mode. We should only boot only 1 non-zero hart. Signed-off-by: Atish Patra

Introduce HAS_MFAULTS_DELEGATION feature

2018-12-21T11:02:30Z

Conditionnally delegate page fault exceptions from M mode to S mode based on the platform features. Signed-off-by: Damien Le Moal

lib: Remove prints from sbi_hart_switch_mode()

2018-12-21T09:24:06Z

The sbi_hart_switch_mode() will be used by CPU hotplug. This means if we have prints in sbi_hart_switch_mode() then these prints will mix with Linux prints. Being a runtime firmware, we should be verbose only at coldboot time and error situations. Signed-off-by: Anup Patel