[PATCH v6 00/11] Add SiFive TMC0 and SMC0 driver
Nick Hu
nick.hu at sifive.com
Thu Sep 4 19:24:33 PDT 2025
SiFive TMC0 and SMC0 are the power controllers that controls the Tile and
CoreComplex power domain. Add the drivers to support the power
management features such as HSM STOP and System Suspend.
Features such as power management may require flushing the entire
cache before entering a non-retention power state. To support this, a
simple cache flush framework is introduced to allow the external CMO
to perform a full cache flush.
---
Changes in v6:
- Rename the aplic_restore() to aplic_reinit_all()
- Remove fdt_hsm_sifive_tmc0_cold_init() from TMC0 header file
- Remove the sifive_dev_platform.c
- Add a dummy inline flavor of fdt_cmo_init() for the case where CONFIG_FDT_CACHE is disabled
- Link to v5: https://lore.kernel.org/r/20250902-cache-upstream-v5-0-af60a067f47a@sifive.com
Changes in v5:
- Put the SiFive TMC0 driver to the fdt_early_driver
- Fix the format of the comments in SiFive TMC0 driver
Changes in v4:
- Call fdt_cmo_init() directly as part of generic_early_init()
- Rename SBI_HART_EXT_XSF* to SBI_HART_EXT_XSIFIVE*
- Move the TMC0 driver to the lib/utils/hsm/
- Move the SMC0 driver to the lib/utils/suspend/
Changes in v3:
- Add the SiFive TMC and SMC driver
Changes in v2:
- Since the platform override hooks was deprecated, use the fdt_driver
for initializing the sifive_dev_platform.
---
Nick Hu (10):
lib: utils: Add cache flush library
lib: utils: Add FDT cache library
lib: utils/cache: Add fdt cmo helpers
lib: sbi: Add SiFive proprietary xsfcflushdlone
lib: sbi: Add SiFive proprietary xsfcease
lib: utils/ipi: Exposing the ACLINT IPI device
lib: utils/irqchip: Add APLIC restore function
platform: sifive: Add SiFive TMC0 driver
lib: utils/timer: Expose timer update function
platform: sifive: Add SiFive SMC0 driver
Vincent Chen (1):
utils: cache: Add SiFive ccache controller
include/sbi/sbi_hart.h | 4 +
include/sbi_utils/cache/cache.h | 69 +++
include/sbi_utils/cache/fdt_cache.h | 34 ++
include/sbi_utils/cache/fdt_cmo_helper.h | 34 ++
include/sbi_utils/hsm/fdt_hsm_sifive_inst.h | 20 +
include/sbi_utils/hsm/fdt_hsm_sifive_tmc0.h | 19 +
include/sbi_utils/ipi/aclint_mswi.h | 1 +
include/sbi_utils/irqchip/aplic.h | 3 +
.../suspend/fdt_suspend_sifive_smc0.h | 18 +
include/sbi_utils/timer/aclint_mtimer.h | 5 +
lib/sbi/sbi_hart.c | 2 +
lib/utils/Kconfig | 2 +
lib/utils/cache/Kconfig | 23 +
lib/utils/cache/cache.c | 46 ++
lib/utils/cache/fdt_cache.c | 87 ++++
lib/utils/cache/fdt_cache_drivers.carray | 3 +
lib/utils/cache/fdt_cmo_helper.c | 112 +++++
lib/utils/cache/fdt_sifive_ccache.c | 175 +++++++
lib/utils/cache/objects.mk | 14 +
lib/utils/hsm/Kconfig | 5 +
lib/utils/hsm/fdt_hsm_sifive_tmc0.c | 468 ++++++++++++++++++
lib/utils/hsm/objects.mk | 2 +
lib/utils/ipi/aclint_mswi.c | 5 +
lib/utils/irqchip/aplic.c | 160 +++---
lib/utils/suspend/Kconfig | 4 +
lib/utils/suspend/fdt_suspend_sifive_smc0.c | 323 ++++++++++++
lib/utils/suspend/objects.mk | 3 +
lib/utils/timer/aclint_mtimer.c | 28 +-
platform/generic/Kconfig | 5 +
platform/generic/configs/defconfig | 5 +
platform/generic/platform.c | 3 +-
platform/generic/sifive/objects.mk | 3 +
platform/generic/sifive/sifive_dev_platform.c | 57 +++
33 files changed, 1667 insertions(+), 75 deletions(-)
create mode 100644 include/sbi_utils/cache/cache.h
create mode 100644 include/sbi_utils/cache/fdt_cache.h
create mode 100644 include/sbi_utils/cache/fdt_cmo_helper.h
create mode 100644 include/sbi_utils/hsm/fdt_hsm_sifive_inst.h
create mode 100644 include/sbi_utils/hsm/fdt_hsm_sifive_tmc0.h
create mode 100644 include/sbi_utils/suspend/fdt_suspend_sifive_smc0.h
create mode 100644 lib/utils/cache/Kconfig
create mode 100644 lib/utils/cache/cache.c
create mode 100644 lib/utils/cache/fdt_cache.c
create mode 100644 lib/utils/cache/fdt_cache_drivers.carray
create mode 100644 lib/utils/cache/fdt_cmo_helper.c
create mode 100644 lib/utils/cache/fdt_sifive_ccache.c
create mode 100644 lib/utils/cache/objects.mk
create mode 100644 lib/utils/hsm/fdt_hsm_sifive_tmc0.c
create mode 100644 lib/utils/suspend/fdt_suspend_sifive_smc0.c
create mode 100644 platform/generic/sifive/sifive_dev_platform.c
--
2.17.1
--
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---
Nick Hu (10):
lib: utils: Add cache flush library
lib: utils: Add FDT cache library
lib: utils/cache: Add fdt cmo helpers
lib: sbi: Add SiFive proprietary xsfcflushdlone
lib: sbi: Add SiFive proprietary xsfcease
lib: utils/ipi: Exposing the ACLINT IPI device
lib: utils/irqchip: Add APLIC restore function
platform: sifive: Add SiFive TMC0 driver
lib: utils/timer: Expose timer update function
platform: sifive: Add SiFive SMC0 driver
Vincent Chen (1):
utils: cache: Add SiFive ccache controller
include/sbi/sbi_hart.h | 4 +
include/sbi_utils/cache/cache.h | 69 ++++
include/sbi_utils/cache/fdt_cache.h | 34 ++
include/sbi_utils/cache/fdt_cmo_helper.h | 40 ++
include/sbi_utils/hsm/fdt_hsm_sifive_inst.h | 20 +
include/sbi_utils/hsm/fdt_hsm_sifive_tmc0.h | 14 +
include/sbi_utils/ipi/aclint_mswi.h | 1 +
include/sbi_utils/irqchip/aplic.h | 3 +
.../sbi_utils/suspend/fdt_suspend_sifive_smc0.h | 18 +
include/sbi_utils/timer/aclint_mtimer.h | 5 +
lib/sbi/sbi_hart.c | 2 +
lib/utils/Kconfig | 2 +
lib/utils/cache/Kconfig | 23 ++
lib/utils/cache/cache.c | 46 +++
lib/utils/cache/fdt_cache.c | 87 +++++
lib/utils/cache/fdt_cache_drivers.carray | 3 +
lib/utils/cache/fdt_cmo_helper.c | 112 ++++++
lib/utils/cache/fdt_sifive_ccache.c | 175 +++++++++
lib/utils/cache/objects.mk | 14 +
lib/utils/hsm/Kconfig | 5 +
lib/utils/hsm/fdt_hsm_sifive_tmc0.c | 405 +++++++++++++++++++++
lib/utils/hsm/objects.mk | 3 +
lib/utils/ipi/aclint_mswi.c | 5 +
lib/utils/irqchip/aplic.c | 160 ++++----
lib/utils/suspend/Kconfig | 4 +
lib/utils/suspend/fdt_suspend_sifive_smc0.c | 323 ++++++++++++++++
lib/utils/suspend/objects.mk | 3 +
lib/utils/timer/aclint_mtimer.c | 28 +-
platform/generic/configs/defconfig | 4 +
platform/generic/platform.c | 3 +-
30 files changed, 1540 insertions(+), 75 deletions(-)
---
base-commit: 1ffbd063c4da252f59cc570e537a3c8821ed6967
change-id: 20250829-cache-upstream-93730838a1a6
prerequisite-message-id: <20250904052410.546818-1-apatel at ventanamicro.com>
prerequisite-patch-id: 32105a5311c0318d3142ef94171e3eebc97e46bf
prerequisite-patch-id: 977e729132da2347796423fbb01ffe8ac016c192
prerequisite-patch-id: aad5e5f724eb0873af11780a85607285adec7eb9
Best regards,
--
Nick Hu <nick.hu at sifive.com>
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