From patchwork Tue Sep 26 09:46:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Wang, Xiao W" X-Patchwork-Id: 726769 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 90551E7D275 for ; Tue, 26 Sep 2023 09:38:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234233AbjIZJit (ORCPT ); Tue, 26 Sep 2023 05:38:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49240 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234256AbjIZJir (ORCPT ); Tue, 26 Sep 2023 05:38:47 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EEC10124; Tue, 26 Sep 2023 02:38:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1695721119; x=1727257119; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=D2zk7hqw/NUeE67saE05yFlsZp65mZyDIWiC5Q8WdOE=; b=CnSq0mgmmgUjeGs9GVAOBj2SytzqFd1mtMPNU3NHfctPFdeGzqnML2gl urT/Mz2YZu68DSQmONWJW/qisXdNg92lzVqzUSl3/53Dwiti/989xR8gN 82QeX60tlkipaybMiXFBGUclcCxiEX0en60A29K7jKsA6LsUCtPWy+ioZ sbN20Nh98zEu28phhQhCGYeYcnXJzbiZjT42b/NC+EEWGuGv3lRkmVhP5 Ks79z7xBCF8JYnVMuBF1CcKWBkizfKCbR54w96zaDnR1+s30lGfUXY7UW 7Q0UqOdmF1U8TXfoVgOCRgHdCt/qefm81o93nkrdVxAh+8tTfSjPEXa6q Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10843"; a="361773035" X-IronPort-AV: E=Sophos;i="6.03,177,1694761200"; d="scan'208";a="361773035" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Sep 2023 02:38:39 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10843"; a="995767918" X-IronPort-AV: E=Sophos;i="6.03,177,1694761200"; d="scan'208";a="995767918" Received: from xiao-desktop.sh.intel.com ([10.239.46.158]) by fmsmga006.fm.intel.com with ESMTP; 26 Sep 2023 02:38:36 -0700 From: Xiao Wang To: paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, ardb@kernel.org Cc: anup@brainfault.org, haicheng.li@intel.com, ajones@ventanamicro.com, yujie.liu@intel.com, linux-riscv@lists.infradead.org, linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org, Xiao Wang Subject: [PATCH v3 1/2] riscv: Rearrange hwcap.h and cpufeature.h Date: Tue, 26 Sep 2023 17:46:54 +0800 Message-Id: <20230926094655.3102758-2-xiao.w.wang@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230926094655.3102758-1-xiao.w.wang@intel.com> References: <20230926094655.3102758-1-xiao.w.wang@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-efi@vger.kernel.org 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 Signed-off-by: Xiao Wang Reviewed-by: Andrew Jones --- arch/riscv/include/asm/cpufeature.h | 83 ++++++++++++++++++++++++++ arch/riscv/include/asm/elf.h | 2 +- arch/riscv/include/asm/hwcap.h | 91 ----------------------------- arch/riscv/include/asm/pgtable.h | 1 + arch/riscv/include/asm/switch_to.h | 2 +- arch/riscv/include/asm/vector.h | 2 +- arch/riscv/kvm/aia.c | 2 +- arch/riscv/kvm/main.c | 2 +- arch/riscv/kvm/tlb.c | 2 +- arch/riscv/kvm/vcpu_fp.c | 2 +- arch/riscv/kvm/vcpu_onereg.c | 2 +- arch/riscv/kvm/vcpu_vector.c | 2 +- drivers/clocksource/timer-riscv.c | 2 +- drivers/perf/riscv_pmu_sbi.c | 2 +- 14 files changed, 95 insertions(+), 102 deletions(-) diff --git a/arch/riscv/include/asm/cpufeature.h b/arch/riscv/include/asm/cpufeature.h index 13b7d35648a9..3061d33abc2f 100644 --- a/arch/riscv/include/asm/cpufeature.h +++ b/arch/riscv/include/asm/cpufeature.h @@ -7,7 +7,10 @@ #define _ASM_CPUFEATURE_H #include +#include #include +#include +#include /* * These are probed via a device_initcall(), via either the SBI or directly @@ -33,4 +36,84 @@ extern struct riscv_isainfo hart_isa[NR_CPUS]; void check_unaligned_access(int cpu); void riscv_user_isa_enable(void); +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 #include #include -#include +#include /* * 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 -#include -#include #include #define RISCV_ISA_EXT_a ('a' - 'a') @@ -67,92 +64,4 @@ #define RISCV_ISA_EXT_SxAIA RISCV_ISA_EXT_SSAIA #endif -#ifndef __ASSEMBLY__ - -#include -#include - -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 b2ba3f79cfe9..e05b5dc1f0cb 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 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 #include #include -#include +#include #include #include #include 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 #include #include -#include +#include #include #include 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 #include #include -#include +#include #include 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 #include #include -#include +#include #include 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 #include #include -#include +#include #include #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 #include #include -#include +#include #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 #include #include -#include +#include #include #include 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 #include #include -#include +#include #include #include diff --git a/drivers/clocksource/timer-riscv.c b/drivers/clocksource/timer-riscv.c index da3071b387eb..6d9e344e98f8 100644 --- a/drivers/clocksource/timer-riscv.c +++ b/drivers/clocksource/timer-riscv.c @@ -24,7 +24,7 @@ #include #include #include -#include +#include #include #include diff --git a/drivers/perf/riscv_pmu_sbi.c b/drivers/perf/riscv_pmu_sbi.c index 9a51053b1f99..b97d3f1abcb1 100644 --- a/drivers/perf/riscv_pmu_sbi.c +++ b/drivers/perf/riscv_pmu_sbi.c @@ -22,7 +22,7 @@ #include #include -#include +#include #define SYSCTL_NO_USER_ACCESS 0 #define SYSCTL_USER_ACCESS 1