From: "H. Peter Anvin" <hpa@zytor.com>
To: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Andy Lutomirski <luto@kernel.org>,
Borislav Petkov <bp@alien8.de>, "H. Peter Anvin" <hpa@zytor.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [PATCH v2 2/9] x86/irqvector: add NR_EXTERNAL_VECTORS and NR_SYSTEM_VECTORS
Date: Fri, 14 May 2021 18:43:54 -0700 [thread overview]
Message-ID: <20210515014400.2999028-3-hpa@zytor.com> (raw)
In-Reply-To: <20210515014400.2999028-1-hpa@zytor.com>
From: "H. Peter Anvin (Intel)" <hpa@zytor.com>
Add defines for the number of external vectors and number of system
vectors instead of requiring the use of (FIRST_SYSTEM_VECTOR -
FIRST_EXTERNAL_VECTOR) and (NR_VECTORS - FIRST_SYSTEM_VECTOR)
respectively.
Acked-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
---
arch/x86/include/asm/idtentry.h | 4 ++--
arch/x86/include/asm/irq_vectors.h | 3 +++
tools/arch/x86/include/asm/irq_vectors.h | 3 +++
3 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/idtentry.h b/arch/x86/include/asm/idtentry.h
index 73d45b0dfff2..c03a18cac78e 100644
--- a/arch/x86/include/asm/idtentry.h
+++ b/arch/x86/include/asm/idtentry.h
@@ -504,7 +504,7 @@ __visible noinstr void func(struct pt_regs *regs, \
.align 8
SYM_CODE_START(irq_entries_start)
vector=FIRST_EXTERNAL_VECTOR
- .rept (FIRST_SYSTEM_VECTOR - FIRST_EXTERNAL_VECTOR)
+ .rept NR_EXTERNAL_VECTORS
UNWIND_HINT_IRET_REGS
0 :
.byte 0x6a, vector
@@ -520,7 +520,7 @@ SYM_CODE_END(irq_entries_start)
.align 8
SYM_CODE_START(spurious_entries_start)
vector=FIRST_SYSTEM_VECTOR
- .rept (NR_VECTORS - FIRST_SYSTEM_VECTOR)
+ .rept NR_SYSTEM_VECTORS
UNWIND_HINT_IRET_REGS
0 :
.byte 0x6a, vector
diff --git a/arch/x86/include/asm/irq_vectors.h b/arch/x86/include/asm/irq_vectors.h
index 889f8b1b5b7f..d2ef35927770 100644
--- a/arch/x86/include/asm/irq_vectors.h
+++ b/arch/x86/include/asm/irq_vectors.h
@@ -114,6 +114,9 @@
#define FIRST_SYSTEM_VECTOR NR_VECTORS
#endif
+#define NR_EXTERNAL_VECTORS (FIRST_SYSTEM_VECTOR - FIRST_EXTERNAL_VECTOR)
+#define NR_SYSTEM_VECTORS (NR_VECTORS - FIRST_SYSTEM_VECTOR)
+
/*
* Size the maximum number of interrupts.
*
diff --git a/tools/arch/x86/include/asm/irq_vectors.h b/tools/arch/x86/include/asm/irq_vectors.h
index 889f8b1b5b7f..d2ef35927770 100644
--- a/tools/arch/x86/include/asm/irq_vectors.h
+++ b/tools/arch/x86/include/asm/irq_vectors.h
@@ -114,6 +114,9 @@
#define FIRST_SYSTEM_VECTOR NR_VECTORS
#endif
+#define NR_EXTERNAL_VECTORS (FIRST_SYSTEM_VECTOR - FIRST_EXTERNAL_VECTOR)
+#define NR_SYSTEM_VECTORS (NR_VECTORS - FIRST_SYSTEM_VECTOR)
+
/*
* Size the maximum number of interrupts.
*
--
2.31.1
next prev parent reply other threads:[~2021-05-15 1:44 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-15 1:43 [PATCH v2 0/8] x86/irq: trap and interrupt cleanups H. Peter Anvin
2021-05-15 1:43 ` [PATCH v2 1/9] x86/traps: add X86_NR_HW_TRAPS to <asm/trapnr.h> H. Peter Anvin
2021-05-15 1:43 ` H. Peter Anvin [this message]
2021-05-15 1:43 ` [PATCH v2 3/9] x86/irq: remove unused vectors from <asm/irq_vectors.h> H. Peter Anvin
2021-05-15 1:43 ` [PATCH v2 4/9] x86/idt: remove address argument to idt_invalidate() H. Peter Anvin
2021-05-15 15:27 ` Andy Lutomirski
2021-05-15 1:43 ` [PATCH v2 5/9] x86/desc: add native_[ig]dt_invalidate() to <asm/desc.h> H. Peter Anvin
2021-05-15 15:29 ` Andy Lutomirski
2021-05-15 1:43 ` [PATCH v2 6/9] x86/kexec: set_[gi]dt() -> native_[gi]dt_invalidate() in machine_kexec_*.c H. Peter Anvin
2021-05-15 15:30 ` Andy Lutomirski
2021-05-15 1:43 ` [PATCH v2 7/9] x86/irq: WARN_ONCE() if irq_move_cleanup is called on a pending interrupt H. Peter Anvin
2021-05-15 6:24 ` H. Peter Anvin
2021-05-15 9:59 ` [PATCH v2.1 7/8] " H. Peter Anvin
2021-05-15 1:44 ` [PATCH v2 8/9] x86/irq: merge and functionalize common code in DECLARE/DEFINE_IDTENTRY_* H. Peter Anvin
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