[PATCH v2 00/17] RPMI and SBI MPXY support for OpenSBI
Anup Patel
anup at brainfault.org
Thu Dec 5 19:55:12 PST 2024
On Fri, Nov 29, 2024 at 9:21 PM Anup Patel <apatel at ventanamicro.com> wrote:
>
> This series adds RPMI and SBI MPXY support for OpenSBI. The RPMI service
> groups supported include system reset, system suspend, HSM, CPPC, and
> clock. The RPMI clock serivice group is exposed to supervisor software
> as an MPXY channel.
>
> These patches can also be found in the rpmi_mpxy_v2 branch at:
> https://github.com/avpatel/opensbi.git
>
> To test these patches, use the dev-upstream branch of the following repos:
> * https://github.com/ventanamicro/qemu.git
> * https://github.com/ventanamicro/linux.git
>
> To enable QEMU RPMI emulation (using librpmi) for virt machine, use
> "virt,rpmi=on" as the QEMU machine name.
>
> Changes since v1:
> - Rebased on latest OpenSBI
> - Use the recently introduced helpers for generic driver initialization
> - Updated RPMI drivers to match the latest RPMI specification
> - Don't support fixed number of channels in RPMI shared memory mailbox driver
> - Added new patch9 for support RPMI HSM based FDT fixup
> - Improved arrangment of barrier in __smq_rx() and __smq_tx()
>
> Anup Patel (8):
> lib: utils/mailbox: Add generic mailbox library
> lib: utils/mailbox: Add simple FDT based mailbox framework
> lib: utils: Add simple FDT based system suspend driver framework
> lib: utils/fdt: Allow dynamic registration of FDT fixup callbacks
> lib: utils: Add simple FDT based HSM driver framework
> lib: utils: Add simple FDT based CPPC driver framework
> lib: sbi: Implement SBI MPXY extension
> lib: utils: Add simple FDT based MPXY driver framework
>
> Rahul Pathak (5):
> lib: Increase ROOT_REGION_MAX to accomodate more memregions
> lib/utils: Add RPMI messaging protocol and shared memory transport
> support
> lib/utils: reset: Add RPMI System Reset driver
> lib: sbi: Add SBI Message Proxy (MPXY) framework
> lib: utils/mpxy: Add RPMI client driver for MPXY
>
> Subrahmanya Lingappa (4):
> lib: utils/suspend: Add RPMI system suspend driver
> lib: sbi: Add optional resume address to hart suspend
> lib: utils/hsm: Add RPMI HSM driver
> lib: utils/cppc: Add RPMI CPPC driver
We plan to include the RPMI and MPXY drivers as experimental
for the upcoming OpenSBI v1.6 release at the end of this month.
There is still more work required in improving these drivers and
related frameworks but that can happen incrementally over time.
Applied this series to the riscv/opensi repo.
Thanks,
Anup
>
> include/sbi/sbi_ecall_interface.h | 12 +
> include/sbi/sbi_error.h | 15 +-
> include/sbi/sbi_hsm.h | 6 +-
> include/sbi/sbi_mpxy.h | 183 +++++
> include/sbi/sbi_platform.h | 17 +
> include/sbi_utils/cppc/fdt_cppc.h | 26 +
> include/sbi_utils/fdt/fdt_fixup.h | 15 +
> include/sbi_utils/hsm/fdt_hsm.h | 26 +
> include/sbi_utils/mailbox/fdt_mailbox.h | 35 +
> include/sbi_utils/mailbox/mailbox.h | 180 +++++
> include/sbi_utils/mailbox/rpmi_mailbox.h | 32 +
> include/sbi_utils/mailbox/rpmi_msgprot.h | 607 +++++++++++++++
> include/sbi_utils/mpxy/fdt_mpxy.h | 26 +
> include/sbi_utils/suspend/fdt_suspend.h | 26 +
> lib/sbi/Kconfig | 3 +
> lib/sbi/objects.mk | 4 +
> lib/sbi/sbi_domain.c | 2 +-
> lib/sbi/sbi_ecall_mpxy.c | 68 ++
> lib/sbi/sbi_hsm.c | 6 +-
> lib/sbi/sbi_init.c | 6 +
> lib/sbi/sbi_mpxy.c | 698 +++++++++++++++++
> lib/utils/Kconfig | 10 +
> lib/utils/cppc/Kconfig | 19 +
> lib/utils/cppc/fdt_cppc.c | 22 +
> lib/utils/cppc/fdt_cppc_drivers.carray | 3 +
> lib/utils/cppc/fdt_cppc_rpmi.c | 377 +++++++++
> lib/utils/cppc/objects.mk | 14 +
> lib/utils/fdt/fdt_fixup.c | 33 +
> lib/utils/hsm/Kconfig | 19 +
> lib/utils/hsm/fdt_hsm.c | 22 +
> lib/utils/hsm/fdt_hsm_drivers.carray | 3 +
> lib/utils/hsm/fdt_hsm_rpmi.c | 362 +++++++++
> lib/utils/hsm/objects.mk | 14 +
> lib/utils/mailbox/Kconfig | 29 +
> lib/utils/mailbox/fdt_mailbox.c | 96 +++
> lib/utils/mailbox/fdt_mailbox_drivers.carray | 5 +
> lib/utils/mailbox/fdt_mailbox_rpmi_shmem.c | 773 +++++++++++++++++++
> lib/utils/mailbox/mailbox.c | 138 ++++
> lib/utils/mailbox/objects.mk | 18 +
> lib/utils/mailbox/rpmi_mailbox.c | 91 +++
> lib/utils/mpxy/Kconfig | 19 +
> lib/utils/mpxy/fdt_mpxy.c | 22 +
> lib/utils/mpxy/fdt_mpxy_drivers.carray | 3 +
> lib/utils/mpxy/fdt_mpxy_rpmi_mbox.c | 442 +++++++++++
> lib/utils/mpxy/objects.mk | 14 +
> lib/utils/reset/Kconfig | 5 +
> lib/utils/reset/fdt_reset_rpmi.c | 141 ++++
> lib/utils/reset/objects.mk | 3 +
> lib/utils/suspend/Kconfig | 19 +
> lib/utils/suspend/fdt_suspend.c | 22 +
> lib/utils/suspend/fdt_suspend_drivers.carray | 3 +
> lib/utils/suspend/fdt_suspend_rpmi.c | 138 ++++
> lib/utils/suspend/objects.mk | 14 +
> platform/generic/allwinner/sun20i-d1.c | 2 +-
> platform/generic/configs/defconfig | 12 +
> platform/generic/platform.c | 16 +
> 56 files changed, 4903 insertions(+), 13 deletions(-)
> create mode 100644 include/sbi/sbi_mpxy.h
> create mode 100644 include/sbi_utils/cppc/fdt_cppc.h
> create mode 100644 include/sbi_utils/hsm/fdt_hsm.h
> create mode 100644 include/sbi_utils/mailbox/fdt_mailbox.h
> create mode 100644 include/sbi_utils/mailbox/mailbox.h
> create mode 100644 include/sbi_utils/mailbox/rpmi_mailbox.h
> create mode 100644 include/sbi_utils/mailbox/rpmi_msgprot.h
> create mode 100644 include/sbi_utils/mpxy/fdt_mpxy.h
> create mode 100644 include/sbi_utils/suspend/fdt_suspend.h
> create mode 100644 lib/sbi/sbi_ecall_mpxy.c
> create mode 100644 lib/sbi/sbi_mpxy.c
> create mode 100644 lib/utils/cppc/Kconfig
> create mode 100644 lib/utils/cppc/fdt_cppc.c
> create mode 100644 lib/utils/cppc/fdt_cppc_drivers.carray
> create mode 100644 lib/utils/cppc/fdt_cppc_rpmi.c
> create mode 100644 lib/utils/cppc/objects.mk
> create mode 100644 lib/utils/hsm/Kconfig
> create mode 100644 lib/utils/hsm/fdt_hsm.c
> create mode 100644 lib/utils/hsm/fdt_hsm_drivers.carray
> create mode 100644 lib/utils/hsm/fdt_hsm_rpmi.c
> create mode 100644 lib/utils/hsm/objects.mk
> create mode 100644 lib/utils/mailbox/Kconfig
> create mode 100644 lib/utils/mailbox/fdt_mailbox.c
> create mode 100644 lib/utils/mailbox/fdt_mailbox_drivers.carray
> create mode 100644 lib/utils/mailbox/fdt_mailbox_rpmi_shmem.c
> create mode 100644 lib/utils/mailbox/mailbox.c
> create mode 100644 lib/utils/mailbox/objects.mk
> create mode 100644 lib/utils/mailbox/rpmi_mailbox.c
> create mode 100644 lib/utils/mpxy/Kconfig
> create mode 100644 lib/utils/mpxy/fdt_mpxy.c
> create mode 100644 lib/utils/mpxy/fdt_mpxy_drivers.carray
> create mode 100644 lib/utils/mpxy/fdt_mpxy_rpmi_mbox.c
> create mode 100644 lib/utils/mpxy/objects.mk
> create mode 100644 lib/utils/reset/fdt_reset_rpmi.c
> create mode 100644 lib/utils/suspend/Kconfig
> create mode 100644 lib/utils/suspend/fdt_suspend.c
> create mode 100644 lib/utils/suspend/fdt_suspend_drivers.carray
> create mode 100644 lib/utils/suspend/fdt_suspend_rpmi.c
> create mode 100644 lib/utils/suspend/objects.mk
>
> --
> 2.43.0
>
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