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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next prev 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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