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path: root/arch/riscv/include/asm/sbi.h
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2024-10-28cmd: sbi: Add FWFT, MPXY extensionsHeinrich Schuchardt
The SBI 3.0 specification [1] adds the following extensions: * Firmware Features Extension * Message Proxy Extension Let the sbi command detect their availability. The Firmware Features Extension is already implemented in OpenSBI. Correct the text for the DBTR extension and move it to the same position as in the specification. [1] https://github.com/riscv-non-isa/riscv-sbi-doc/releases/download/vv3.0-rc1/riscv-sbi.pdf Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2024-05-01cmd: sbi: add Supervisor Software Events extensionHeinrich Schuchardt
OpenSBI has implemented the Supervisor Software Events Extension. Allow detecting it in the sbi command. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2024-01-31cmd: sbi: add support for Debug Trigger ExtensionHeinrich Schuchardt
Detect and show if the SBI implements the Debug Trigger Extension. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2023-09-05risc-v: implement DBCN write byteHeinrich Schuchardt
The DBCN extension provides a Console Write Byte call. Implement function sbi_dbcn_write_byte to invoke it. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2023-08-10cmd/sbi: display new extensionsHeinrich Schuchardt
The SBI specification v2.0-rc2 defines new extensions: * Nested Acceleration Extension (NACL) * Steal Time Accounting (STA) Allow the sbi command to display these. Add missing implementation IDs. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2023-07-06cmd/sbi: display new extensionsHeinrich Schuchardt
OpenSBI already implements some extensions that are not ratified yet: * Debug Console Extension (DBCN) * System Suspend Extension (SUSP) * Collaborative Processor Performance Control Extension (CPPC) Allow the sbi command to display these. Provide the FID definitions of the Debug Console Extension. We can use that extension for an early debug console driver. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2022-04-06riscv: provide missing base extension functionsHeinrich Schuchardt
Provide library functions to read: * machine vendor ID * machine architecture ID * machine implementation ID Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Sean Anderson <seanga2@gmail.com>
2022-04-06cmd: sbi: add Performance Monitoring Unit ExtensionHeinrich Schuchardt
Version 1.0-rc3 of the RISC-V Supervisor Binary Interface Specification has added the Performance Monitoring Unit Extension. The sbi command should be able to detect it. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2021-11-08riscv: function to retrieve SBI implementation versionHeinrich Schuchardt
Provide function sbi_get_impl_version() to retrieve the SBI implementation version. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com> Reviewed-by: Rick Chen <rick@andestech.com>
2021-10-07sysreset: provide SBI based sysreset driverHeinrich Schuchardt
Provide sysreset driver using the SBI system reset extension. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Samuel Holland <samuel@sholland.org>
2021-10-07riscv: add missing SBI extension definitionsHeinrich Schuchardt
Add the System Reset Extension and the Hart State Management Extension definitions. Add missing RFENCE Extension enum values. The SBI 0.1 extension constants are needed for the sbi command. Remove an #ifdef. Cf. https://github.com/riscv/riscv-sbi-doc/blob/master/riscv-sbi.adoc Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com> Reviewed-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-08-25cmd: provide command sbiHeinrich Schuchardt
Provide a command to display information about the SBI implementation. The output might look like: => sbi SBI 0.2 OpenSBI Extensions: sbi_set_timer sbi_console_putchar sbi_console_getchar sbi_clear_ipi sbi_send_ipi sbi_remote_fence_i sbi_remote_sfence_vma sbi_remote_sfence_vma_asid sbi_shutdown SBI Base Functionality Timer Extension IPI Extension RFENCE Extension Hart State Management Extension The command can be used to construct a unit test checking that the communication with the SEE is working. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Atish Patra <atish.patra@wdc.com> Reviewed-by: Bin Meng <bin.meng@windriver.com> Tested-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Pragnesh Patel <pragnesh.patel@openfive.com> Tested-by: Pragnesh Patel <pragnesh.patel@openfive.com> Reviewed-by: Rick Chen <rick@andestech.com> Tested-by: Rick Chen <rick@andestech.com>
2020-06-04riscv: sbi: Remove sbi_spec_versionBin Meng
U-Boot defaults to use SBI v0.2. Howerver there is a global variable sbi_spec_version that stills refers to v0.1. Since it is not used anywhere, let's remove it. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Rick Chen <rick@andestech.com>
2020-05-26riscv: Move all SMP related SBI calls to SBI_v01Atish Patra
SMP support for S-mode U-Boot is enabled only if SBI_V01 is enabled. There is no point in supporting SMP related (IPI and fences) SBI calls when SBI_V02 is enabled. Modify all the SMP related SBI calls to be defined only for SBI_V01. Signed-off-by: Atish Patra <atish.patra@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-03-17riscv: Implement new SBI v0.2 extensionsBin Meng
Few v0.1 SBI calls are being replaced by new SBI calls that follows v0.2 calling convention. Implement the replacement extensions and few additional new SBI function calls that makes way for a better SBI interface in future. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Pragnesh Patel <pragnesh.patel@sifive.com>
2020-03-17riscv: Introduce a new config for SBI v0.1Bin Meng
We now have SBI v0.2 which is more scalable and extendable to handle future needs for RISC-V supervisor interfaces. Introduce a new config and move all SBI v0.1 code under that config. This allows to implement the new replacement SBI extensions cleanly and remove v0.1 extensions easily in future. Currently, the config is enabled by default. Once all M-mode software, with v0.1, is no longer in use, this config option and all relevant code can be easily removed. This commit is inspired from Linux kernel patch: https://patchwork.kernel.org/patch/11407361/ Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Pragnesh Patel <pragnesh.patel@sifive.com>
2020-03-17riscv: Add SBI v0.2 extension definitionsBin Meng
Few v0.1 SBI calls are being replaced by new SBI calls that follows v0.2 calling convention. This patch just defines these new extensions. This commit is inspired from Linux kernel patch: https://patchwork.kernel.org/patch/11407359/ Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Pragnesh Patel <pragnesh.patel@sifive.com>
2020-03-17riscv: Add basic support for SBI v0.2Bin Meng
The SBI v0.2 introduces a base extension which is backward compatible with v0.1. Implement all helper functions and minimum required SBI calls from v0.2 for now. All other base extension function will be added later as per need. As v0.2 calling convention is backward compatible with v0.1, remove the v0.1 helper functions and just use v0.2 calling convention. Add a new Kconfig options CONFIG_SBI for the new SBI v0.2 codes, and let CONFIG_SBI_IPI depend on it. This commit is inspired from Linux kernel patch: https://patchwork.kernel.org/patch/11407363/ Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Pragnesh Patel <pragnesh.patel@sifive.com>
2020-03-17riscv: Mark existing SBI as v0.1 SBIBin Meng
As per the new SBI specification, current SBI implementation version is defined as 0.1 and will be removed/replaced in future. Each of the function call in 0.1 is defined as a separate extension which makes easier to replace them one at a time. Rename existing implementation to reflect that. This patch is just a preparatory patch for SBI v0.2 and doesn't introduce any functional changes. This commit is inspired from Linux kernel patch: https://patchwork.kernel.org/patch/11407355/ Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Pragnesh Patel <pragnesh.patel@sifive.com>
2020-03-17riscv: Fix sbi_remote_sfence_vma{,_asid}Bin Meng
Currently sbi_remote_sfence_vma{,_asid} does not pass their arguments to SBI at all, which is semantically incorrect. This keeps in sync with Linux kernel commit: a21344dfc6ad: fix sbi_remote_sfence_vma{,_asid} Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas@auer.io>
2019-04-08riscv: import the supervisor binary interface header fileLukas Auer
Import the supervisor binary interface (SBI) header file from Linux (arch/riscv/include/asm/sbi.h). The last change to it was in commit 6d60b6ee0c97 ("RISC-V: Device, timer, IRQs, and the SBI"). 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> Reviewed-by: Atish Patra <atish.patra@wdc.com>
generated by cgit v1.2.3 (git 2.0.4) at 2025-08-12 15:35:18 +0000