opensbi.git/lib/sbi_ipi.c, branch v0.1

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: Allow sending IPI to self.

2019-01-22T04:33:49Z

S-mode software may send IPI to self. For example, tlbflush may be executed for the same hart. Let the hart send IPI to itself. It's an overhead but doesn't break anything. However, if we don't allow it, it breaks if S-mode keep sending IPIs. Signed-off-by: Atish Patra

lib: Fix ipi type update

2019-01-22T04:33:49Z

IPIs are updated in scratch space by source hart. However, different harts or same hart may want to send different IPIs before previous IPI was read by the target hart. Currently, previous IPI type is overwritten in that case. Use atomic bit set/clear operations to update IPIs. Signed-off-by: Atish Patra

lib: Simplify sbi_platform ipi_init() hooks

2018-12-27T04:05:09Z

Instead of having separate ipi_init() hooks for cold and warm boot, this patch updates struct sbi_platform to have just one ipi_init() hook. The type of boot (cold or warm) is now a boolean flag parameter for the updated ipi_init() hook. 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

Initial commit.

2018-12-11T13:54:06Z

Signed-off-by: Anup Patel