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From: Jesse Taube <jesse@rivosinc.com>
To: linux-riscv@lists.infradead.org
Cc: "Jonathan Corbet" <corbet@lwn.net>,
	"Paul Walmsley" <paul.walmsley@sifive.com>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Albert Ou" <aou@eecs.berkeley.edu>,
	"Conor Dooley" <conor@kernel.org>,
	"Rob Herring" <robh@kernel.org>,
	"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
	"Clément Léger" <cleger@rivosinc.com>,
	"Evan Green" <evan@rivosinc.com>,
	"Andrew Jones" <ajones@ventanamicro.com>,
	"Jesse Taube" <jesse@rivosinc.com>,
	"Charlie Jenkins" <charlie@rivosinc.com>,
	"Xiao Wang" <xiao.w.wang@intel.com>,
	"Andy Chiu" <andy.chiu@sifive.com>,
	"Eric Biggers" <ebiggers@google.com>,
	"Greentime Hu" <greentime.hu@sifive.com>,
	"Björn Töpel" <bjorn@rivosinc.com>,
	"Heiko Stuebner" <heiko@sntech.de>,
	"Costa Shulyupin" <costa.shul@redhat.com>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Baoquan He" <bhe@redhat.com>,
	"Anup Patel" <apatel@ventanamicro.com>,
	"Zong Li" <zong.li@sifive.com>,
	"Sami Tolvanen" <samitolvanen@google.com>,
	"Ben Dooks" <ben.dooks@codethink.co.uk>,
	"Alexandre Ghiti" <alexghiti@rivosinc.com>,
	"Gustavo A. R. Silva" <gustavoars@kernel.org>,
	"Erick Archer" <erick.archer@gmx.com>,
	"Joel Granados" <j.granados@samsung.com>,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
	devicetree@vger.kernel.org
Subject: [PATCH v3 5/8] RISC-V: Replace RISCV_MISALIGNED with RISCV_SCALAR_MISALIGNED
Date: Mon, 24 Jun 2024 20:49:58 -0400	[thread overview]
Message-ID: <20240625005001.37901-6-jesse@rivosinc.com> (raw)
In-Reply-To: <20240625005001.37901-1-jesse@rivosinc.com>

Replace RISCV_MISALIGNED with RISCV_SCALAR_MISALIGNED to allow
for the addition of RISCV_VECTOR_MISALIGNED in a later patch.

Signed-off-by: Jesse Taube <jesse@rivosinc.com>
---
V2 -> V3:
 - New patch
---
 arch/riscv/Kconfig                    | 6 +++---
 arch/riscv/include/asm/cpufeature.h   | 2 +-
 arch/riscv/include/asm/entry-common.h | 2 +-
 arch/riscv/kernel/Makefile            | 4 ++--
 arch/riscv/kernel/fpu.S               | 4 ++--
 5 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index b94176e25be1..34d24242e37a 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -717,7 +717,7 @@ config THREAD_SIZE_ORDER
 	  Specify the Pages of thread stack size (from 4KB to 64KB), which also
 	  affects irq stack size, which is equal to thread stack size.
 
-config RISCV_MISALIGNED
+config RISCV_SCALAR_MISALIGNED
 	bool
 	select SYSCTL_ARCH_UNALIGN_ALLOW
 	help
@@ -734,7 +734,7 @@ choice
 
 config RISCV_PROBE_UNALIGNED_ACCESS
 	bool "Probe for hardware unaligned access support"
-	select RISCV_MISALIGNED
+	select RISCV_SCALAR_MISALIGNED
 	help
 	  During boot, the kernel will run a series of tests to determine the
 	  speed of unaligned accesses. This probing will dynamically determine
@@ -745,7 +745,7 @@ config RISCV_PROBE_UNALIGNED_ACCESS
 
 config RISCV_EMULATED_UNALIGNED_ACCESS
 	bool "Emulate unaligned access where system support is missing"
-	select RISCV_MISALIGNED
+	select RISCV_SCALAR_MISALIGNED
 	help
 	  If unaligned memory accesses trap into the kernel as they are not
 	  supported by the system, the kernel will emulate the unaligned
diff --git a/arch/riscv/include/asm/cpufeature.h b/arch/riscv/include/asm/cpufeature.h
index 347805446151..0ed7d99c14dd 100644
--- a/arch/riscv/include/asm/cpufeature.h
+++ b/arch/riscv/include/asm/cpufeature.h
@@ -33,8 +33,8 @@ extern struct riscv_isainfo hart_isa[NR_CPUS];
 
 void riscv_user_isa_enable(void);
 
-#if defined(CONFIG_RISCV_MISALIGNED)
 bool check_unaligned_access_emulated_all_cpus(void);
+#if defined(CONFIG_RISCV_SCALAR_MISALIGNED)
 void unaligned_emulation_finish(void);
 bool unaligned_ctl_available(void);
 DECLARE_PER_CPU(long, misaligned_access_speed);
diff --git a/arch/riscv/include/asm/entry-common.h b/arch/riscv/include/asm/entry-common.h
index 2293e535f865..0a4e3544c877 100644
--- a/arch/riscv/include/asm/entry-common.h
+++ b/arch/riscv/include/asm/entry-common.h
@@ -25,7 +25,7 @@ static inline void arch_exit_to_user_mode_prepare(struct pt_regs *regs,
 void handle_page_fault(struct pt_regs *regs);
 void handle_break(struct pt_regs *regs);
 
-#ifdef CONFIG_RISCV_MISALIGNED
+#ifdef CONFIG_RISCV_SCALAR_MISALIGNED
 int handle_misaligned_load(struct pt_regs *regs);
 int handle_misaligned_store(struct pt_regs *regs);
 #else
diff --git a/arch/riscv/kernel/Makefile b/arch/riscv/kernel/Makefile
index 5b243d46f4b1..8d4e7d40e42f 100644
--- a/arch/riscv/kernel/Makefile
+++ b/arch/riscv/kernel/Makefile
@@ -62,8 +62,8 @@ obj-y	+= probes/
 obj-y	+= tests/
 obj-$(CONFIG_MMU) += vdso.o vdso/
 
-obj-$(CONFIG_RISCV_MISALIGNED)	+= traps_misaligned.o
-obj-$(CONFIG_RISCV_MISALIGNED)	+= unaligned_access_speed.o
+obj-$(CONFIG_RISCV_SCALAR_MISALIGNED)	+= traps_misaligned.o
+obj-$(CONFIG_RISCV_SCALAR_MISALIGNED)	+= unaligned_access_speed.o
 obj-$(CONFIG_RISCV_PROBE_UNALIGNED_ACCESS)	+= copy-unaligned.o
 
 obj-$(CONFIG_FPU)		+= fpu.o
diff --git a/arch/riscv/kernel/fpu.S b/arch/riscv/kernel/fpu.S
index 327cf527dd7e..f74f6b60e347 100644
--- a/arch/riscv/kernel/fpu.S
+++ b/arch/riscv/kernel/fpu.S
@@ -170,7 +170,7 @@ SYM_FUNC_END(__fstate_restore)
 	__access_func(f31)
 
 
-#ifdef CONFIG_RISCV_MISALIGNED
+#ifdef CONFIG_RISCV_SCALAR_MISALIGNED
 
 /*
  * Disable compressed instructions set to keep a constant offset between FP
@@ -224,4 +224,4 @@ SYM_FUNC_START(get_f64_reg)
 	fp_access_epilogue
 SYM_FUNC_END(get_f64_reg)
 
-#endif /* CONFIG_RISCV_MISALIGNED */
+#endif /* CONFIG_RISCV_SCALAR_MISALIGNED */
-- 
2.45.2


  parent reply	other threads:[~2024-06-25  0:51 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-25  0:49 [PATCH v3 0/8] RISC-V: Detect and report speed of unaligned vector accesses Jesse Taube
2024-06-25  0:49 ` [PATCH v3 1/8] RISC-V: Add Zicclsm to cpufeature and hwprobe Jesse Taube
2024-06-26 14:41   ` Conor Dooley
2024-06-25  0:49 ` [PATCH v3 2/8] dt-bindings: riscv: Add Zicclsm ISA extension description Jesse Taube
2024-06-25  0:49 ` [PATCH v3 3/8] RISC-V: Check scalar unaligned access on all CPUs Jesse Taube
2024-07-10 15:55   ` Evan Green
2024-07-11 20:25     ` Jesse Taube
2024-06-25  0:49 ` [PATCH v3 4/8] RISC-V: Check Zicclsm to set unaligned access speed Jesse Taube
2024-06-26 14:39   ` Conor Dooley
2024-06-27 21:20     ` Charlie Jenkins
2024-07-01  7:15       ` Clément Léger
2024-07-01 13:58         ` Conor Dooley
2024-07-01 14:20           ` Clément Léger
2024-07-02 22:22             ` Charlie Jenkins
2024-07-03  7:13               ` Clément Léger
2024-07-03 21:47                 ` Jesse Taube
2024-06-25  0:49 ` Jesse Taube [this message]
2024-06-26 14:39   ` [PATCH v3 5/8] RISC-V: Replace RISCV_MISALIGNED with RISCV_SCALAR_MISALIGNED Conor Dooley
2024-06-25  0:49 ` [PATCH v3 6/8] RISC-V: Detect unaligned vector accesses supported Jesse Taube
2024-07-01 15:13   ` Samuel Holland
2024-06-25  0:50 ` [PATCH v3 7/8] RISC-V: Report vector unaligned access speed hwprobe Jesse Taube
2024-07-01 22:51   ` Evan Green
2024-07-11 20:35     ` Jesse Taube
2024-06-25  0:50 ` [PATCH v3 8/8] RISC-V: hwprobe: Document unaligned vector perf key Jesse Taube
2024-06-26 14:37   ` Conor Dooley
2024-07-01 22:55   ` Evan Green

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