summaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
authorXiao Wang <xiao.w.wang@intel.com>2023-10-31 07:45:52 +0100
committerPalmer Dabbelt <palmer@rivosinc.com>2023-11-09 19:15:51 +0100
commite72c4333d2f2e7f2200f71a88c0480fd2a769a64 (patch)
tree3fbea8f0e7b28f499221ac66eef8fd7eb3d0d1bc /arch
parentMerge patch "drivers: perf: Do not broadcast to other cpus when starting a co... (diff)
downloadlinux-e72c4333d2f2e7f2200f71a88c0480fd2a769a64.tar.xz
linux-e72c4333d2f2e7f2200f71a88c0480fd2a769a64.zip
riscv: Rearrange hwcap.h and cpufeature.h
Now hwcap.h and cpufeature.h are mutually including each other, and most of the variable/API declarations in hwcap.h are implemented in cpufeature.c, so, it's better to move them into cpufeature.h and leave only macros for ISA extension logical IDs in hwcap.h. BTW, the riscv_isa_extension_mask macro is not used now, so this patch removes it. Suggested-by: Andrew Jones <ajones@ventanamicro.com> Signed-off-by: Xiao Wang <xiao.w.wang@intel.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20231031064553.2319688-2-xiao.w.wang@intel.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/riscv/include/asm/cpufeature.h83
-rw-r--r--arch/riscv/include/asm/elf.h2
-rw-r--r--arch/riscv/include/asm/hwcap.h91
-rw-r--r--arch/riscv/include/asm/pgtable.h1
-rw-r--r--arch/riscv/include/asm/switch_to.h2
-rw-r--r--arch/riscv/include/asm/vector.h2
-rw-r--r--arch/riscv/kvm/aia.c2
-rw-r--r--arch/riscv/kvm/main.c2
-rw-r--r--arch/riscv/kvm/tlb.c2
-rw-r--r--arch/riscv/kvm/vcpu_fp.c2
-rw-r--r--arch/riscv/kvm/vcpu_onereg.c2
-rw-r--r--arch/riscv/kvm/vcpu_vector.c2
12 files changed, 93 insertions, 100 deletions
diff --git a/arch/riscv/include/asm/cpufeature.h b/arch/riscv/include/asm/cpufeature.h
index 69f2cae96f0b..a418c3112cd6 100644
--- a/arch/riscv/include/asm/cpufeature.h
+++ b/arch/riscv/include/asm/cpufeature.h
@@ -7,7 +7,10 @@
#define _ASM_CPUFEATURE_H
#include <linux/bitmap.h>
+#include <linux/jump_label.h>
#include <asm/hwcap.h>
+#include <asm/alternative-macros.h>
+#include <asm/errno.h>
/*
* These are probed via a device_initcall(), via either the SBI or directly
@@ -50,4 +53,84 @@ static inline bool check_unaligned_access_emulated(int cpu)
static inline void unaligned_emulation_finish(void) {}
#endif
+unsigned long riscv_get_elf_hwcap(void);
+
+struct riscv_isa_ext_data {
+ const unsigned int id;
+ const char *name;
+ const char *property;
+};
+
+extern const struct riscv_isa_ext_data riscv_isa_ext[];
+extern const size_t riscv_isa_ext_count;
+extern bool riscv_isa_fallback;
+
+unsigned long riscv_isa_extension_base(const unsigned long *isa_bitmap);
+
+bool __riscv_isa_extension_available(const unsigned long *isa_bitmap, int bit);
+#define riscv_isa_extension_available(isa_bitmap, ext) \
+ __riscv_isa_extension_available(isa_bitmap, RISCV_ISA_EXT_##ext)
+
+static __always_inline bool
+riscv_has_extension_likely(const unsigned long ext)
+{
+ compiletime_assert(ext < RISCV_ISA_EXT_MAX,
+ "ext must be < RISCV_ISA_EXT_MAX");
+
+ if (IS_ENABLED(CONFIG_RISCV_ALTERNATIVE)) {
+ asm_volatile_goto(
+ ALTERNATIVE("j %l[l_no]", "nop", 0, %[ext], 1)
+ :
+ : [ext] "i" (ext)
+ :
+ : l_no);
+ } else {
+ if (!__riscv_isa_extension_available(NULL, ext))
+ goto l_no;
+ }
+
+ return true;
+l_no:
+ return false;
+}
+
+static __always_inline bool
+riscv_has_extension_unlikely(const unsigned long ext)
+{
+ compiletime_assert(ext < RISCV_ISA_EXT_MAX,
+ "ext must be < RISCV_ISA_EXT_MAX");
+
+ if (IS_ENABLED(CONFIG_RISCV_ALTERNATIVE)) {
+ asm_volatile_goto(
+ ALTERNATIVE("nop", "j %l[l_yes]", 0, %[ext], 1)
+ :
+ : [ext] "i" (ext)
+ :
+ : l_yes);
+ } else {
+ if (__riscv_isa_extension_available(NULL, ext))
+ goto l_yes;
+ }
+
+ return false;
+l_yes:
+ return true;
+}
+
+static __always_inline bool riscv_cpu_has_extension_likely(int cpu, const unsigned long ext)
+{
+ if (IS_ENABLED(CONFIG_RISCV_ALTERNATIVE) && riscv_has_extension_likely(ext))
+ return true;
+
+ return __riscv_isa_extension_available(hart_isa[cpu].isa, ext);
+}
+
+static __always_inline bool riscv_cpu_has_extension_unlikely(int cpu, const unsigned long ext)
+{
+ if (IS_ENABLED(CONFIG_RISCV_ALTERNATIVE) && riscv_has_extension_unlikely(ext))
+ return true;
+
+ return __riscv_isa_extension_available(hart_isa[cpu].isa, ext);
+}
+
#endif
diff --git a/arch/riscv/include/asm/elf.h b/arch/riscv/include/asm/elf.h
index b3b2dfbdf945..06c236bfab53 100644
--- a/arch/riscv/include/asm/elf.h
+++ b/arch/riscv/include/asm/elf.h
@@ -14,7 +14,7 @@
#include <asm/auxvec.h>
#include <asm/byteorder.h>
#include <asm/cacheinfo.h>
-#include <asm/hwcap.h>
+#include <asm/cpufeature.h>
/*
* These are used to set parameters in the core dumps.
diff --git a/arch/riscv/include/asm/hwcap.h b/arch/riscv/include/asm/hwcap.h
index 31774bcdf1c6..141b7109c25c 100644
--- a/arch/riscv/include/asm/hwcap.h
+++ b/arch/riscv/include/asm/hwcap.h
@@ -8,9 +8,6 @@
#ifndef _ASM_RISCV_HWCAP_H
#define _ASM_RISCV_HWCAP_H
-#include <asm/alternative-macros.h>
-#include <asm/errno.h>
-#include <linux/bits.h>
#include <uapi/asm/hwcap.h>
#define RISCV_ISA_EXT_a ('a' - 'a')
@@ -67,92 +64,4 @@
#define RISCV_ISA_EXT_SxAIA RISCV_ISA_EXT_SSAIA
#endif
-#ifndef __ASSEMBLY__
-
-#include <linux/jump_label.h>
-#include <asm/cpufeature.h>
-
-unsigned long riscv_get_elf_hwcap(void);
-
-struct riscv_isa_ext_data {
- const unsigned int id;
- const char *name;
- const char *property;
-};
-
-extern const struct riscv_isa_ext_data riscv_isa_ext[];
-extern const size_t riscv_isa_ext_count;
-extern bool riscv_isa_fallback;
-
-unsigned long riscv_isa_extension_base(const unsigned long *isa_bitmap);
-
-#define riscv_isa_extension_mask(ext) BIT_MASK(RISCV_ISA_EXT_##ext)
-
-bool __riscv_isa_extension_available(const unsigned long *isa_bitmap, int bit);
-#define riscv_isa_extension_available(isa_bitmap, ext) \
- __riscv_isa_extension_available(isa_bitmap, RISCV_ISA_EXT_##ext)
-
-static __always_inline bool
-riscv_has_extension_likely(const unsigned long ext)
-{
- compiletime_assert(ext < RISCV_ISA_EXT_MAX,
- "ext must be < RISCV_ISA_EXT_MAX");
-
- if (IS_ENABLED(CONFIG_RISCV_ALTERNATIVE)) {
- asm_volatile_goto(
- ALTERNATIVE("j %l[l_no]", "nop", 0, %[ext], 1)
- :
- : [ext] "i" (ext)
- :
- : l_no);
- } else {
- if (!__riscv_isa_extension_available(NULL, ext))
- goto l_no;
- }
-
- return true;
-l_no:
- return false;
-}
-
-static __always_inline bool
-riscv_has_extension_unlikely(const unsigned long ext)
-{
- compiletime_assert(ext < RISCV_ISA_EXT_MAX,
- "ext must be < RISCV_ISA_EXT_MAX");
-
- if (IS_ENABLED(CONFIG_RISCV_ALTERNATIVE)) {
- asm_volatile_goto(
- ALTERNATIVE("nop", "j %l[l_yes]", 0, %[ext], 1)
- :
- : [ext] "i" (ext)
- :
- : l_yes);
- } else {
- if (__riscv_isa_extension_available(NULL, ext))
- goto l_yes;
- }
-
- return false;
-l_yes:
- return true;
-}
-
-static __always_inline bool riscv_cpu_has_extension_likely(int cpu, const unsigned long ext)
-{
- if (IS_ENABLED(CONFIG_RISCV_ALTERNATIVE) && riscv_has_extension_likely(ext))
- return true;
-
- return __riscv_isa_extension_available(hart_isa[cpu].isa, ext);
-}
-
-static __always_inline bool riscv_cpu_has_extension_unlikely(int cpu, const unsigned long ext)
-{
- if (IS_ENABLED(CONFIG_RISCV_ALTERNATIVE) && riscv_has_extension_unlikely(ext))
- return true;
-
- return __riscv_isa_extension_available(hart_isa[cpu].isa, ext);
-}
-#endif
-
#endif /* _ASM_RISCV_HWCAP_H */
diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
index c8e8867c42f6..294044429e8e 100644
--- a/arch/riscv/include/asm/pgtable.h
+++ b/arch/riscv/include/asm/pgtable.h
@@ -291,6 +291,7 @@ static inline pte_t pud_pte(pud_t pud)
}
#ifdef CONFIG_RISCV_ISA_SVNAPOT
+#include <asm/cpufeature.h>
static __always_inline bool has_svnapot(void)
{
diff --git a/arch/riscv/include/asm/switch_to.h b/arch/riscv/include/asm/switch_to.h
index a727be723c56..f90d8e42f3c7 100644
--- a/arch/riscv/include/asm/switch_to.h
+++ b/arch/riscv/include/asm/switch_to.h
@@ -9,7 +9,7 @@
#include <linux/jump_label.h>
#include <linux/sched/task_stack.h>
#include <asm/vector.h>
-#include <asm/hwcap.h>
+#include <asm/cpufeature.h>
#include <asm/processor.h>
#include <asm/ptrace.h>
#include <asm/csr.h>
diff --git a/arch/riscv/include/asm/vector.h b/arch/riscv/include/asm/vector.h
index c5ee07b3df07..87aaef656257 100644
--- a/arch/riscv/include/asm/vector.h
+++ b/arch/riscv/include/asm/vector.h
@@ -15,7 +15,7 @@
#include <linux/sched.h>
#include <linux/sched/task_stack.h>
#include <asm/ptrace.h>
-#include <asm/hwcap.h>
+#include <asm/cpufeature.h>
#include <asm/csr.h>
#include <asm/asm.h>
diff --git a/arch/riscv/kvm/aia.c b/arch/riscv/kvm/aia.c
index 74bb27440527..a944294f6f23 100644
--- a/arch/riscv/kvm/aia.c
+++ b/arch/riscv/kvm/aia.c
@@ -14,7 +14,7 @@
#include <linux/kvm_host.h>
#include <linux/percpu.h>
#include <linux/spinlock.h>
-#include <asm/hwcap.h>
+#include <asm/cpufeature.h>
#include <asm/kvm_aia_imsic.h>
struct aia_hgei_control {
diff --git a/arch/riscv/kvm/main.c b/arch/riscv/kvm/main.c
index 48ae0d4b3932..225a435d9c9a 100644
--- a/arch/riscv/kvm/main.c
+++ b/arch/riscv/kvm/main.c
@@ -11,7 +11,7 @@
#include <linux/module.h>
#include <linux/kvm_host.h>
#include <asm/csr.h>
-#include <asm/hwcap.h>
+#include <asm/cpufeature.h>
#include <asm/sbi.h>
long kvm_arch_dev_ioctl(struct file *filp,
diff --git a/arch/riscv/kvm/tlb.c b/arch/riscv/kvm/tlb.c
index 44bc324aeeb0..23c0e82b5103 100644
--- a/arch/riscv/kvm/tlb.c
+++ b/arch/riscv/kvm/tlb.c
@@ -12,7 +12,7 @@
#include <linux/kvm_host.h>
#include <asm/cacheflush.h>
#include <asm/csr.h>
-#include <asm/hwcap.h>
+#include <asm/cpufeature.h>
#include <asm/insn-def.h>
#define has_svinval() riscv_has_extension_unlikely(RISCV_ISA_EXT_SVINVAL)
diff --git a/arch/riscv/kvm/vcpu_fp.c b/arch/riscv/kvm/vcpu_fp.c
index 08ba48a395aa..030904d82b58 100644
--- a/arch/riscv/kvm/vcpu_fp.c
+++ b/arch/riscv/kvm/vcpu_fp.c
@@ -11,7 +11,7 @@
#include <linux/err.h>
#include <linux/kvm_host.h>
#include <linux/uaccess.h>
-#include <asm/hwcap.h>
+#include <asm/cpufeature.h>
#ifdef CONFIG_FPU
void kvm_riscv_vcpu_fp_reset(struct kvm_vcpu *vcpu)
diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c
index 1b7e9fa265cb..b03e0c879dab 100644
--- a/arch/riscv/kvm/vcpu_onereg.c
+++ b/arch/riscv/kvm/vcpu_onereg.c
@@ -13,7 +13,7 @@
#include <linux/uaccess.h>
#include <linux/kvm_host.h>
#include <asm/cacheflush.h>
-#include <asm/hwcap.h>
+#include <asm/cpufeature.h>
#include <asm/kvm_vcpu_vector.h>
#include <asm/vector.h>
diff --git a/arch/riscv/kvm/vcpu_vector.c b/arch/riscv/kvm/vcpu_vector.c
index b430cbb69521..b339a2682f25 100644
--- a/arch/riscv/kvm/vcpu_vector.c
+++ b/arch/riscv/kvm/vcpu_vector.c
@@ -11,7 +11,7 @@
#include <linux/err.h>
#include <linux/kvm_host.h>
#include <linux/uaccess.h>
-#include <asm/hwcap.h>
+#include <asm/cpufeature.h>
#include <asm/kvm_vcpu_vector.h>
#include <asm/vector.h>