Hi Colton,
On 6/26/25 21:04, Colton Lewis wrote:
There's no reason Enums shouldn't be equivalent to UnsignedEnums and explicitly specify they are unsigned. This will avoid the annoyance I had with HPMN0.
An Enum can be annotated with the field's sign by updating it to UnsignedEnum or SignedEnum. This is explained in [1].
With this change ID_AA64PFR1_EL1.MTE_frac would be marked as unsigned when it should really be considered signed.
Enum 43:40 MTE_frac 0b0000 ASYNC 0b1111 NI EndEnum
Signed-off-by: Colton Lewis coltonlewis@google.com
arch/arm64/tools/gen-sysreg.awk | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/arm64/tools/gen-sysreg.awk b/arch/arm64/tools/gen-sysreg.awk index f2a1732cb1f6..fa21a632d9b7 100755 --- a/arch/arm64/tools/gen-sysreg.awk +++ b/arch/arm64/tools/gen-sysreg.awk @@ -308,6 +308,7 @@ $1 == "Enum" && (block_current() == "Sysreg" || block_current() == "SysregFields parse_bitdef(reg, field, $2) define_field(reg, field, msb, lsb)
- define_field_sign(reg, field, "false")
next }
Thanks,
Ben
[1] https://lore.kernel.org/all/20221207-arm64-sysreg-helpers-v4-1-25b6b3fb9d18@...