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From: Jisheng Zhang <jszhang@kernel.org>
To: Palmer Dabbelt <palmer@dabbelt.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Anup Patel <anup@brainfault.org>,
	Atish Patra <atishp@atishpatra.org>,
	Heiko Stuebner <heiko@sntech.de>,
	Andrew Jones <ajones@ventanamicro.com>
Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
	kvm@vger.kernel.org, kvm-riscv@lists.infradead.org
Subject: [PATCH v2 04/13] riscv: hwcap: make ISA extension ids can be used in asm
Date: Mon,  5 Dec 2022 01:46:23 +0800	[thread overview]
Message-ID: <20221204174632.3677-5-jszhang@kernel.org> (raw)
In-Reply-To: <20221204174632.3677-1-jszhang@kernel.org>

We will make use of ISA extension in asm files, so make the multi-letter
RISC-V ISA extension IDs macros rather than enums and move them and
those base ISA extension IDs to suitable place.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
---
 arch/riscv/include/asm/hwcap.h | 43 ++++++++++++++++------------------
 1 file changed, 20 insertions(+), 23 deletions(-)

diff --git a/arch/riscv/include/asm/hwcap.h b/arch/riscv/include/asm/hwcap.h
index b22525290073..996884986fea 100644
--- a/arch/riscv/include/asm/hwcap.h
+++ b/arch/riscv/include/asm/hwcap.h
@@ -12,20 +12,6 @@
 #include <linux/bits.h>
 #include <uapi/asm/hwcap.h>
 
-#ifndef __ASSEMBLY__
-#include <linux/jump_label.h>
-/*
- * This yields a mask that user programs can use to figure out what
- * instruction set this cpu supports.
- */
-#define ELF_HWCAP		(elf_hwcap)
-
-enum {
-	CAP_HWCAP = 1,
-};
-
-extern unsigned long elf_hwcap;
-
 #define RISCV_ISA_EXT_a		('a' - 'a')
 #define RISCV_ISA_EXT_c		('c' - 'a')
 #define RISCV_ISA_EXT_d		('d' - 'a')
@@ -46,22 +32,33 @@ extern unsigned long elf_hwcap;
 #define RISCV_ISA_EXT_BASE 26
 
 /*
- * This enum represent the logical ID for each multi-letter RISC-V ISA extension.
+ * These macros represent the logical ID for each multi-letter RISC-V ISA extension.
  * The logical ID should start from RISCV_ISA_EXT_BASE and must not exceed
  * RISCV_ISA_EXT_MAX. 0-25 range is reserved for single letter
  * extensions while all the multi-letter extensions should define the next
  * available logical extension id.
  */
-enum riscv_isa_ext_id {
-	RISCV_ISA_EXT_SSCOFPMF = RISCV_ISA_EXT_BASE,
-	RISCV_ISA_EXT_SVPBMT,
-	RISCV_ISA_EXT_ZICBOM,
-	RISCV_ISA_EXT_ZIHINTPAUSE,
-	RISCV_ISA_EXT_SSTC,
-	RISCV_ISA_EXT_SVINVAL,
-	RISCV_ISA_EXT_ID_MAX = RISCV_ISA_EXT_MAX,
+#define RISCV_ISA_EXT_SSCOFPMF		26
+#define RISCV_ISA_EXT_SVPBMT		27
+#define RISCV_ISA_EXT_ZICBOM		28
+#define RISCV_ISA_EXT_ZIHINTPAUSE	29
+#define RISCV_ISA_EXT_SSTC		30
+#define RISCV_ISA_EXT_SVINVAL		31
+
+#ifndef __ASSEMBLY__
+#include <linux/jump_label.h>
+/*
+ * This yields a mask that user programs can use to figure out what
+ * instruction set this cpu supports.
+ */
+#define ELF_HWCAP		(elf_hwcap)
+
+enum {
+	CAP_HWCAP = 1,
 };
 
+extern unsigned long elf_hwcap;
+
 /*
  * This enum represents the logical ID for each RISC-V ISA extension static
  * keys. We can use static key to optimize code path if some ISA extensions
-- 
2.37.2


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  parent reply	other threads:[~2022-12-04 18:00 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-04 17:46 [PATCH v2 00/13] riscv: improve boot time isa extensions handling Jisheng Zhang
2022-12-04 17:46 ` [PATCH v2 01/13] riscv: fix jal offsets in patched alternatives Jisheng Zhang
2022-12-05 14:57   ` Andrew Jones
2022-12-05 15:34     ` Jisheng Zhang
2022-12-05 16:42     ` Jisheng Zhang
2022-12-05 16:49       ` Jisheng Zhang
2022-12-06  5:50         ` Andrew Jones
2022-12-05 15:31   ` Heiko Stübner
2022-12-05 15:40     ` Jisheng Zhang
2022-12-05 18:36       ` Conor Dooley
2022-12-05 18:49         ` Heiko Stübner
2022-12-05 19:49           ` Conor Dooley
2022-12-06  0:39             ` Heiko Stübner
2022-12-06 15:02               ` Jisheng Zhang
2022-12-06 16:12                 ` Conor Dooley
2022-12-19 21:32                   ` Conor Dooley
2022-12-04 17:46 ` [PATCH v2 02/13] riscv: move riscv_noncoherent_supported() out of ZICBOM probe Jisheng Zhang
2022-12-04 21:52   ` Heiko Stübner
2022-12-05 15:16     ` Jisheng Zhang
2022-12-05 15:31       ` Conor Dooley
2022-12-04 17:46 ` [PATCH v2 03/13] riscv: cpufeature: detect RISCV_ALTERNATIVES_EARLY_BOOT earlier Jisheng Zhang
2022-12-05 19:09   ` Conor Dooley
2022-12-04 17:46 ` Jisheng Zhang [this message]
2022-12-05 18:53   ` [PATCH v2 04/13] riscv: hwcap: make ISA extension ids can be used in asm Conor Dooley
2022-12-22 22:58     ` Conor Dooley
2022-12-04 17:46 ` [PATCH v2 05/13] riscv: cpufeature: extend riscv_cpufeature_patch_func to all ISA extensions Jisheng Zhang
2022-12-05 19:37   ` Conor Dooley
2022-12-04 17:46 ` [PATCH v2 06/13] riscv: introduce riscv_has_extension_[un]likely() Jisheng Zhang
2022-12-06 20:25   ` Conor Dooley
2022-12-04 17:46 ` [PATCH v2 07/13] riscv: fpu: switch has_fpu() to riscv_has_extension_likely() Jisheng Zhang
2022-12-04 17:46 ` [PATCH v2 08/13] riscv: module: move find_section to module.h Jisheng Zhang
2022-12-05 15:25   ` Andrew Jones
2022-12-06 20:44   ` Conor Dooley
2022-12-04 17:46 ` [PATCH v2 09/13] riscv: switch to relative alternative entries Jisheng Zhang
2022-12-05  0:51   ` Guo Ren
2022-12-05 15:18     ` Jisheng Zhang
2022-12-06  4:34       ` Guo Ren
2022-12-06 14:50         ` Jisheng Zhang
2022-12-06 21:43           ` Conor Dooley
2022-12-04 17:46 ` [PATCH v2 10/13] riscv: alternative: patch alternatives in the vDSO Jisheng Zhang
2022-12-05  1:56   ` Guo Ren
2022-12-05 15:23     ` Jisheng Zhang
2022-12-06  4:29       ` Guo Ren
2023-01-11 14:12   ` Andrew Jones
2022-12-04 17:46 ` [PATCH v2 11/13] riscv: cpu_relax: switch to riscv_has_extension_likely() Jisheng Zhang
2022-12-05  0:52   ` Guo Ren
2022-12-06 22:04   ` Conor Dooley
2022-12-04 17:46 ` [PATCH v2 12/13] riscv: KVM: Switch has_svinval() to riscv_has_extension_unlikely() Jisheng Zhang
2022-12-05  0:52   ` Guo Ren
2022-12-04 17:46 ` [PATCH v2 13/13] riscv: remove riscv_isa_ext_keys[] array and related usage Jisheng Zhang
2022-12-05  0:53   ` Guo Ren
2022-12-06 22:16   ` Conor Dooley

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