opensbi.git/lib/sbi/sbi_init.c, branch v1.6

lib: sbi: Improve the alignment of boot-time prints

2024-12-24T06:30:47Z

Addition of "Experimental SBI Extensions" to the boot-time prints disturbs the alignment of other prints so adjust all boot-time prints accordingly. Signed-off-by: Anup Patel

lib: sbi: Print list of available SBI extensions at boot-time

2024-12-22T05:46:13Z

Add boot-time prints for list of available standard and experimental SBI extensions. Signed-off-by: Anup Patel

lib: sbi: Add SBI Message Proxy (MPXY) framework

2024-12-06T03:56:50Z

Introduce SBI Message Proxy (MPXY) framework which allows platform specific code or drivers to register message protocol specific channels. This framework enables the supervisor software to send messages belonging to different message protocols via OpenSBI firmware. Signed-off-by: Rahul Pathak Co-developed-by: Himanshu Chauhan Signed-off-by: Himanshu Chauhan Co-developed-by: Anup Patel Signed-off-by: Anup Patel

lib: sbi_ipi: Make .ipi_clear always target the current hart

2024-11-11T12:47:15Z

All existing users of this operation target the current hart, and it seems unlikely that a future user will need to clear the pending IPI status of a remote hart. Simplify the logic by changing .ipi_clear (and its wrapper sbi_ipi_raw_clear()) to always operate on the current hart. This incidentally fixes a bug introduced in commit 78c667b6fc07 ("lib: sbi: Prefer hartindex over hartid in IPI framework"), which changed the .ipi_clear parameter from a hartid to a hart index, but failed to update the warm_init functions to match. Fixes: 78c667b6fc07 ("lib: sbi: Prefer hartindex over hartid in IPI framework") Signed-off-by: Samuel Holland Reviewed-by: Anup Patel

lib: sbi: Remove unused hartid parameters

2024-09-26T10:59:29Z

None of these functions use their hartid parameter. Signed-off-by: Samuel Holland Reviewed-by: Anup Patel

lib: sbi: Update sbi_{entry,init}_count() to take a hart index

2024-09-26T10:59:27Z

All callers already have the hartindex available, so this removes a hartid to hartindex conversion. Signed-off-by: Samuel Holland Reviewed-by: Anup Patel

lib: sbi_init: Remove obsolete hartid check

2024-09-25T05:25:30Z

This check has been obsolete since commit c51f02cf143b ("include: sbi_platform: Introduce HART index to HART id table"). It originally filtered out harts that were disabled in the FDT, but those harts are omitted from the hart_index2id table, so they will hang in fw_base.S after the "Find HART index" loop and never enter sbi_init(). Signed-off-by: Samuel Holland Reviewed-by: Anup Patel

lib: sbi: Remove sbi_console_init() and console_init() platform callback

2024-07-24T06:48:33Z

Now that all platforms have been updated to initialize serial console device in early_init(), the sbi_console_init() and console_init() platform callback are redundant hence remove them. Signed-off-by: Anup Patel Reviewed-By: Himanshu Chauhan

lib: sbi: add support for firmware features extension

2024-06-19T12:39:22Z

This extension allows the software running in supervisor mode to control the behavior of various features of the SBI [1]. Implement the support for such extension. Link: https://lists.riscv.org/g/tech-prs/message/924 [1] Signed-off-by: Clément Léger Reviewed-by: Anup Patel

lib: sbi: Wakeup non-coldboot HARTs early in the coldboot path

2024-04-05T12:18:25Z

Currently, all non-coldboot HARTs busy spin in wait_for_coldboot() until the entire coldboot init sequence is completed. This means: 1) On QEMU, all non-coldboot HARTs will eat host CPU time and also slow down the coldboot HART until the entire coldboot init sequence is completed. 2) On real HW, all non-coldboot HARTs will consume more CPU power until the entire coldboot init sequence is completed. To address this, wake up all non-coldboot HARTs as early as possible in the coldboot init sequence. Signed-off-by: Anup Patel