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lib: sbi: Convert hart features into hart extensions

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Since past few years, we have been using "hart features" in OpenSBI
to represent all optionalities and multi-letter extensions defined
by the RISC-V specifications.

The RISC-V profiles specification has taken a different approach and
started assigning extension names for all optionalities which did not
have any extension name previously.
(Refer, https://github.com/riscv/riscv-profiles/blob/main/profiles.adoc)

Inspired from the RISC-V profiles specification, we convert OpenSBI
hart features into hart extensions. Going forward, we align the
extension naming with RISC-V profiles specification. Currently, only
"time CSR" and "AIA CSR" have not been assigned extension name but
for everything else we have a name.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
This commit is contained in:
Anup Patel
2022-04-28 21:29:22 +05:30
committed by Anup Patel
parent a6ab94fdbf
commit cad6c91045
7 changed files with 86 additions and 93 deletions
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4
lib/sbi/sbi_trap.c
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@@ -272,8 +272,8 @@ struct sbi_trap_regs *sbi_trap_handler(struct sbi_trap_regs *regs)
}
if (mcause & (1UL << (__riscv_xlen - 1))) {
if (sbi_hart_has_feature(sbi_scratch_thishart_ptr(),
SBI_HART_HAS_AIA))
if (sbi_hart_has_extension(sbi_scratch_thishart_ptr(),
SBI_HART_EXT_AIA))
rc = sbi_trap_aia_irq(regs, mcause);
else
rc = sbi_trap_nonaia_irq(regs, mcause);