Received-SPF: pass (google.com: domain of linux-kernel+bounces-69598-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) client-ip=2604:1380:45d1:ec00::1;
From: Atish Patra <atishp@rivosinc.com>
To: linux-kernel@vger.kernel.org
Cc: Atish Patra <atishp@rivosinc.com>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Alexandre Ghiti <alexghiti@rivosinc.com>,
	Andrew Jones <ajones@ventanamicro.com>,
	Anup Patel <anup@brainfault.org>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Atish Patra <atishp@atishpatra.org>,
	Christian Brauner <brauner@kernel.org>,
	=?UTF-8?q?Cl=C3=A9ment=20L=C3=A9ger?= <cleger@rivosinc.com>,
	Conor Dooley <conor@kernel.org>,
	devicetree@vger.kernel.org,
	Evan Green <evan@rivosinc.com>,
	Guo Ren <guoren@kernel.org>,
	Heiko Stuebner <heiko@sntech.de>,
	Ian Rogers <irogers@google.com>,
	Ingo Molnar <mingo@redhat.com>,
	James Clark <james.clark@arm.com>,
	Jing Zhang <renyu.zj@linux.alibaba.com>,
	Jiri Olsa <jolsa@kernel.org>,
	Ji Sheng Teoh <jisheng.teoh@starfivetech.com>,
	John Garry <john.g.garry@oracle.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Kan Liang <kan.liang@linux.intel.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	kvm-riscv@lists.infradead.org,
	kvm@vger.kernel.org,
	Ley Foon Tan <leyfoon.tan@starfivetech.com>,
	linux-doc@vger.kernel.org,
	linux-perf-users@vger.kernel.org,
	linux-riscv@lists.infradead.org,
	Mark Rutland <mark.rutland@arm.com>,
	Namhyung Kim <namhyung@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Rob Herring <robh+dt@kernel.org>,
	Samuel Holland <samuel.holland@sifive.com>,
	Weilin Wang <weilin.wang@intel.com>,
	Will Deacon <will@kernel.org>,
	kaiwenxue1@gmail.com,
	Yang Jihong <yangjihong1@huawei.com>
Subject: [PATCH RFC 07/20] RISC-V: Add Ssccfg ISA extension definition and parsing
Date: Fri, 16 Feb 2024 16:57:25 -0800
Message-Id: <20240217005738.3744121-8-atishp@rivosinc.com>
In-Reply-To: <20240217005738.3744121-1-atishp@rivosinc.com>
References: <20240217005738.3744121-1-atishp@rivosinc.com>
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Ssccfg (‘Ss’ for Privileged architecture and Supervisor-level
extension, ‘ccfg’ for Counter Configuration) provides access to
delegated counters and new supervisor-level state.

This patch just enables the definitions and enable parsing.

Signed-off-by: Atish Patra <atishp@rivosinc.com>
---
 arch/riscv/include/asm/hwcap.h | 2 ++
 arch/riscv/kernel/cpufeature.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/riscv/include/asm/hwcap.h b/arch/riscv/include/asm/hwcap.h
index 44df259cc815..5f4401e221ee 100644
--- a/arch/riscv/include/asm/hwcap.h
+++ b/arch/riscv/include/asm/hwcap.h
@@ -82,6 +82,8 @@
 #define RISCV_ISA_EXT_ZACAS		73
 #define RISCV_ISA_EXT_SSCSRIND		74
 #define RISCV_ISA_EXT_SMCSRIND		75
+#define RISCV_ISA_EXT_SSCCFG            76
+#define RISCV_ISA_EXT_SMCDELEG          77
 
 #define RISCV_ISA_EXT_MAX		128
 #define RISCV_ISA_EXT_INVALID		U32_MAX
diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c
index 52ec88dfb004..77cc5dbd73bf 100644
--- a/arch/riscv/kernel/cpufeature.c
+++ b/arch/riscv/kernel/cpufeature.c
@@ -300,10 +300,12 @@ const struct riscv_isa_ext_data riscv_isa_ext[] = {
 	__RISCV_ISA_EXT_BUNDLE(zvksg, riscv_zvksg_bundled_exts),
 	__RISCV_ISA_EXT_DATA(zvkt, RISCV_ISA_EXT_ZVKT),
 	__RISCV_ISA_EXT_DATA(smaia, RISCV_ISA_EXT_SMAIA),
+	__RISCV_ISA_EXT_DATA(smcdeleg, RISCV_ISA_EXT_SMCDELEG),
 	__RISCV_ISA_EXT_DATA(smstateen, RISCV_ISA_EXT_SMSTATEEN),
 	__RISCV_ISA_EXT_DATA(smcsrind, RISCV_ISA_EXT_SMCSRIND),
 	__RISCV_ISA_EXT_DATA(ssaia, RISCV_ISA_EXT_SSAIA),
 	__RISCV_ISA_EXT_DATA(sscsrind, RISCV_ISA_EXT_SSCSRIND),
+	__RISCV_ISA_EXT_DATA(ssccfg, RISCV_ISA_EXT_SSCCFG),
 	__RISCV_ISA_EXT_DATA(sscofpmf, RISCV_ISA_EXT_SSCOFPMF),
 	__RISCV_ISA_EXT_DATA(sstc, RISCV_ISA_EXT_SSTC),
 	__RISCV_ISA_EXT_DATA(svinval, RISCV_ISA_EXT_SVINVAL),
-- 
2.34.1