opensbi.git/lib/utils/mpxy, branch v1.9

lib: utils: Fix LLVM compile error in MPXY client driver for RPMI MM

2026-05-11T04:38:55Z

The following compile error is seen with LLVM compiler: CC platform/generic/lib/utils/mpxy/fdt_mpxy_rpmi_mm.o lib/utils/mpxy/fdt_mpxy_rpmi_mm.c:17:6: error: use of GNU 'missing =' extension in designator [-Werror,-Wgnu-designator] 17 | [0] { | ^ | = lib/utils/mpxy/fdt_mpxy_rpmi_mm.c:24:6: error: use of GNU 'missing =' extension in designator [-Werror,-Wgnu-designator] 24 | [1] { | ^ | = 2 errors generated. Add missing "=" in mm_srvcdata[] array initialization to address the above issue. Fixes: 0b041e58c078 ("lib: utils: Add MPXY client driver for RPMI MM service group") Signed-off-by: Anup Patel Reviewed-by: Ranbir Singh Link: https://lore.kernel.org/r/20260509161849.2935816-1-anup.patel@oss.qualcomm.com Signed-off-by: Anup Patel

lib: utils: Add MPXY client driver for RPMI MM service group

2026-04-06T12:53:25Z

Add necessary infra for implementing RPMI Management Mode service group on platform microcontroller. Co-authored-by: Sunil V L Signed-off-by: Ranbir Singh Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20260225061347.1396504-1-ranbir.singh@oss.qualcomm.com Signed-off-by: Anup Patel

lib: utils: Use SBI_DOMAIN_MMIO to check MMIO device permissions

2025-12-08T11:17:55Z

Drivers or platforms may create memory regions with the MMIO flag set that contain S-mode-accessible MMIO devices. This is strictly correct and should be allowed, along with the existing default case of S-mode-accessible MMIO devices appearing in non-MMIO memory regions. When passed SBI_DOMAIN_MMIO, sbi_domain_check_addr() will perform the correct set of permission checks. Signed-off-by: Samuel Holland Reviewed-by: Yu-Chien Peter Lin Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20251121193808.1528050-3-samuel.holland@sifive.com Signed-off-by: Anup Patel

lib: utils: Add MPXY RPMI mailbox driver for performance

2025-11-04T05:05:59Z

Add MPXY RPMI mailbox driver for performance. Signed-off-by: Joshua Yeong Reviewed-by: Rahul Pathak Link: https://lore.kernel.org/r/20251013153138.1574512-4-joshua.yeong@starfivetech.com Signed-off-by: Anup Patel

lib: utils: Add MPXY RPMI mailbox driver for device power

2025-11-04T05:04:01Z

Add MPXY RPMI mailbox driver for device power. Signed-off-by: Joshua Yeong Reviewed-by: Rahul Pathak Link: https://lore.kernel.org/r/20251013153138.1574512-3-joshua.yeong@starfivetech.com Signed-off-by: Anup Patel

lib: utils: Add MPXY RPMI mailbox driver for voltage

2025-11-04T05:02:57Z

Add voltage service group for RPMI/MPXY support Signed-off-by: Joshua Yeong Reviewed-by: Rahul Pathak Link: https://lore.kernel.org/r/20251013153138.1574512-2-joshua.yeong@starfivetech.com Signed-off-by: Anup Patel

lib: rpmi: Make RPMI drivers as non-experimental

2025-06-24T03:12:27Z

As RPMI v1.0 specification is frozen, disable the experimental tag for such RPMI drivers. Signed-off-by: Rahul Pathak Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20250618053854.2577299-2-rpathak@ventanamicro.com Signed-off-by: Anup Patel

lib: utils: Add Implementation ID and Version as RPMI MPXY attributes

2025-06-24T03:12:27Z

The latest frozen RPMI spec has added Implementation ID and Implementation Version as message protocol specific mpxy attributes. Add support for these. Signed-off-by: Rahul Pathak Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20250618053854.2577299-1-rpathak@ventanamicro.com Signed-off-by: Anup Patel

lib: utils: Fix fdt_mpxy_init() not returning error code

2025-05-20T05:50:57Z

It seems that current implementation doesn't fail on fdt_mpxy_init(), because platforms might not have any MPXY devices. In fact, if there are no MPXY devices, fdt_driver_init_all() will return SBI_OK. More importantly, if there is any MPXY device which fails the initialization, OpenSBI must check the error code and stop the booting. Thus, this commit adds the return value for fdt_mpxy_init(). Signed-off-by: Alvin Chang Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20250430091007.3768180-1-alvinga@andestech.com Signed-off-by: Anup Patel

lib: utils/mpxy: Remove p2a_db_index from RPMI system MSI attributes

2025-05-20T05:40:35Z

The discovery of P2A doorbell system MSI index is now through RPMI shared memory DT node so remove p2a_db_index from RPMI system MSI attributes and access it as a mailbox channel attribute. Signed-off-by: Anup Patel Link: https://lore.kernel.org/r/20250512083827.804151-5-apatel@ventanamicro.com Signed-off-by: Anup Patel