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riscv: Detect the Ssqosid extension

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Ssqosid is the RISC-V Quality-of-Service (QoS) Identifiers specification
which defines the Supervisor Resource Management Configuration (srmcfg)
register.

Link: https://github.com/riscv/riscv-ssqosid/releases/tag/v1.0
Co-developed-by: Kornel Dulęba <mindal@semihalf.com>
Signed-off-by: Kornel Dulęba <mindal@semihalf.com>
Signed-off-by: Drew Fustini <fustini@kernel.org>
Link: https://patch.msgid.link/20260729-dfustini-atl-sc-cbqri-dt-v6-2-7c22b05d461b@kernel.org
[pjw@kernel.org: updated to apply]
Signed-off-by: Paul Walmsley <pjw@kernel.org>
This commit is contained in:
Drew Fustini 2026-08-07 19:24:32 -06:00 committed by Paul Walmsley
parent 3ec6f50a91
commit 5a17eb5f1c
2 changed files with 2 additions and 0 deletions
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1
arch/riscv/include/asm/hwcap.h
View File

@ -117,6 +117,7 @@
#define RISCV_ISA_EXT_SMCNTRPMF 108
#define RISCV_ISA_EXT_SSCCFG 109
#define RISCV_ISA_EXT_SMCDELEG 110
#define RISCV_ISA_EXT_SSQOSID 111
#define RISCV_ISA_EXT_XLINUXENVCFG 127

1
arch/riscv/kernel/cpufeature.c
View File

@ -609,6 +609,7 @@ const struct riscv_isa_ext_data riscv_isa_ext[] = {
__RISCV_ISA_EXT_DATA(sscofpmf, RISCV_ISA_EXT_SSCOFPMF),
__RISCV_ISA_EXT_DATA(sscsrind, RISCV_ISA_EXT_SSCSRIND),
__RISCV_ISA_EXT_SUPERSET(ssnpm, RISCV_ISA_EXT_SSNPM, riscv_xlinuxenvcfg_exts),
__RISCV_ISA_EXT_DATA(ssqosid, RISCV_ISA_EXT_SSQOSID),
__RISCV_ISA_EXT_DATA(sstc, RISCV_ISA_EXT_SSTC),
__RISCV_ISA_EXT_DATA(svade, RISCV_ISA_EXT_SVADE),
__RISCV_ISA_EXT_DATA_VALIDATE(svadu, RISCV_ISA_EXT_SVADU, riscv_ext_svadu_validate),