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SBI_STA_SHMEM_DISABLE is a macro to invoke disable shared memory
commands. As this can be invoked from other SBI extension context
as well, rename it to more generic name as SBI_SHMEM_DISABLE.
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20240420151741.962500-7-atishp@rivosinc.com
Signed-off-by: Anup Patel <anup@brainfault.org>
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__le32 and __le64 types should be used with le32_to_cpu() and
le64_to_cpu(), as sparse helpfully points out.
Fixes: fdf68acccfc6 ("RISC-V: paravirt: Implement steal-time support")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202401011933.hL9zqmKo-lkp@intel.com/
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
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steal_time is not used outside paravirt.c, make it static,
as sparse suggested.
Fixes: fdf68acccfc6 ("RISC-V: paravirt: Implement steal-time support")
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
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When the SBI STA extension exists we can use it to implement
paravirt steal-time support. Fill in the empty pv-time functions
with an SBI STA implementation and add the Kconfig knobs allowing
it to be enabled.
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
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Add the files and functions needed to support paravirt time on
RISC-V. Also include the common code needed for the first
application of pv-time, which is steal-time. In the next
patches we'll complete the functions to fully enable steal-time
support.
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
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