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
next prev 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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