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From: Brian Gerst <brgerst@gmail.com>
To: linux-kernel@vger.kernel.org, x86@kernel.org
Cc: Ingo Molnar <mingo@kernel.org>, "H . Peter Anvin" <hpa@zytor.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Borislav Petkov <bp@alien8.de>, Ard Biesheuvel <ardb@kernel.org>,
	Uros Bizjak <ubizjak@gmail.com>, Brian Gerst <brgerst@gmail.com>
Subject: [PATCH v5 14/16] percpu: Remove PERCPU_VADDR()
Date: Tue,  5 Nov 2024 10:57:59 -0500	[thread overview]
Message-ID: <20241105155801.1779119-15-brgerst@gmail.com> (raw)
In-Reply-To: <20241105155801.1779119-1-brgerst@gmail.com>

x86-64 was the last user.

Signed-off-by: Brian Gerst <brgerst@gmail.com>
---
 include/asm-generic/vmlinux.lds.h | 36 +------------------------------
 1 file changed, 1 insertion(+), 35 deletions(-)

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 70830a742095..f53915f4e777 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -1045,47 +1045,13 @@
 	__per_cpu_end = .;
 
 /**
- * PERCPU_VADDR - define output section for percpu area
+ * PERCPU_SECTION - define output section for percpu area
  * @cacheline: cacheline size
- * @vaddr: explicit base address (optional)
- * @phdr: destination PHDR (optional)
  *
  * Macro which expands to output section for percpu area.
  *
  * @cacheline is used to align subsections to avoid false cacheline
  * sharing between subsections for different purposes.
- *
- * If @vaddr is not blank, it specifies explicit base address and all
- * percpu symbols will be offset from the given address.  If blank,
- * @vaddr always equals @laddr + LOAD_OFFSET.
- *
- * @phdr defines the output PHDR to use if not blank.  Be warned that
- * output PHDR is sticky.  If @phdr is specified, the next output
- * section in the linker script will go there too.  @phdr should have
- * a leading colon.
- *
- * Note that this macros defines __per_cpu_load as an absolute symbol.
- * If there is no need to put the percpu section at a predetermined
- * address, use PERCPU_SECTION.
- */
-#define PERCPU_VADDR(cacheline, vaddr, phdr)				\
-	__per_cpu_load = .;						\
-	.data..percpu vaddr : AT(__per_cpu_load - LOAD_OFFSET) {	\
-		PERCPU_INPUT(cacheline)					\
-	} phdr								\
-	. = __per_cpu_load + SIZEOF(.data..percpu);
-
-/**
- * PERCPU_SECTION - define output section for percpu area, simple version
- * @cacheline: cacheline size
- *
- * Align to PAGE_SIZE and outputs output section for percpu area.  This
- * macro doesn't manipulate @vaddr or @phdr and __per_cpu_load and
- * __per_cpu_start will be identical.
- *
- * This macro is equivalent to ALIGN(PAGE_SIZE); PERCPU_VADDR(@cacheline,,)
- * except that __per_cpu_load is defined as a relative symbol against
- * .data..percpu which is required for relocatable x86_32 configuration.
  */
 #define PERCPU_SECTION(cacheline)					\
 	. = ALIGN(PAGE_SIZE);						\
-- 
2.47.0


  parent reply	other threads:[~2024-11-05 15:58 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-11-05 15:57 [PATCH v5 00/16] x86-64: Stack protector and percpu improvements Brian Gerst
2024-11-05 15:57 ` [PATCH v5 01/16] x86/stackprotector: Work around strict Clang TLS symbol requirements Brian Gerst
2024-11-05 19:30   ` Nathan Chancellor
2024-11-08 14:43   ` [tip: x86/urgent] " tip-bot2 for Ard Biesheuvel
2024-12-06 11:51   ` [PATCH v5 01/16] " Oleg Nesterov
2024-12-06 14:09     ` Brian Gerst
2024-12-06 14:28       ` Oleg Nesterov
2024-12-06 12:32   ` [PATCH] x86/stackprotector: fix build failure with CONFIG_STACKPROTECTOR=n Oleg Nesterov
2024-12-06 13:17     ` Ard Biesheuvel
2024-12-06 14:21       ` Oleg Nesterov
2024-12-06 14:37         ` Ard Biesheuvel
2024-12-06 15:12           ` Brian Gerst
2024-12-06 15:17             ` Ard Biesheuvel
2025-03-10 21:44               ` Borislav Petkov
2025-03-10 22:19                 ` Ard Biesheuvel
2025-03-11 10:23                   ` Borislav Petkov
2025-03-11 10:37                     ` Ard Biesheuvel
2025-03-11 11:21                       ` Borislav Petkov
2025-03-11 13:13                         ` Borislav Petkov
2025-03-11 14:37                           ` Oleg Nesterov
2025-03-11 17:46                             ` Borislav Petkov
2025-03-11 18:10                               ` Oleg Nesterov
2025-03-11 19:01                                 ` Borislav Petkov
2025-03-11 19:24                                   ` Oleg Nesterov
2025-03-11 21:27                                     ` Brian Gerst
2025-03-11 21:42                                       ` Oleg Nesterov
2025-03-11 21:47                                         ` Brian Gerst
2025-03-12  9:28                           ` Borislav Petkov
2024-11-05 15:57 ` [PATCH v5 02/16] x86: Raise minimum GCC version to 8.1 Brian Gerst
2024-12-05 11:44   ` Ard Biesheuvel
2024-12-05 16:05     ` Brian Gerst
2025-01-14 16:25   ` Borislav Petkov
2024-11-05 15:57 ` [PATCH v5 03/16] x86/stackprotector: Remove stack protector test scripts Brian Gerst
2024-11-07 13:19   ` Uros Bizjak
2024-11-05 15:57 ` [PATCH v5 04/16] x86/boot: Disable stack protector for early boot code Brian Gerst
2024-11-05 15:57 ` [PATCH v5 05/16] x86/pvh: Use fixed_percpu_data for early boot GSBASE Brian Gerst
2024-11-07 14:30   ` Uros Bizjak
2024-11-05 15:57 ` [PATCH v5 06/16] x86/relocs: Handle R_X86_64_REX_GOTPCRELX relocations Brian Gerst
2024-11-07 11:20   ` Uros Bizjak
2024-11-07 11:27     ` Brian Gerst
2024-11-07 11:31       ` Uros Bizjak
2024-11-05 15:57 ` [PATCH v5 07/16] x86/module: Deal with GOT based stack cookie load on Clang < 17 Brian Gerst
2024-11-09  9:36   ` David Laight
2024-11-05 15:57 ` [PATCH v5 08/16] x86/stackprotector/64: Convert to normal percpu variable Brian Gerst
2024-11-07 13:29   ` Uros Bizjak
2025-02-15 14:27   ` Borislav Petkov
2025-02-15 17:38     ` Brian Gerst
2025-02-15 21:18       ` Borislav Petkov
2025-02-15 22:10         ` Brian Gerst
2025-02-16  8:33           ` Borislav Petkov
2024-11-05 15:57 ` [PATCH v5 09/16] x86/percpu/64: Use relative percpu offsets Brian Gerst
2024-11-07 11:28   ` Uros Bizjak
2024-11-07 12:05     ` Brian Gerst
2024-11-07 13:34       ` Uros Bizjak
2024-11-05 15:57 ` [PATCH v5 10/16] x86/percpu/64: Remove fixed_percpu_data Brian Gerst
2024-11-07 13:32   ` Uros Bizjak
2024-11-05 15:57 ` [PATCH v5 11/16] x86/boot/64: Remove inverse relocations Brian Gerst
2024-11-05 15:57 ` [PATCH v5 12/16] x86/percpu/64: Remove INIT_PER_CPU macros Brian Gerst
2024-11-07 13:59   ` Uros Bizjak
2024-11-05 15:57 ` [PATCH v5 13/16] percpu: Remove PER_CPU_FIRST_SECTION Brian Gerst
2024-11-05 15:57 ` Brian Gerst [this message]
2024-11-05 15:58 ` [PATCH v5 15/16] percpu: Remove __per_cpu_load Brian Gerst
2024-11-05 15:58 ` [PATCH v5 16/16] kallsyms: Remove KALLSYMS_ABSOLUTE_PERCPU Brian Gerst
2024-11-09  9:31 ` [PATCH v5 00/16] x86-64: Stack protector and percpu improvements David Laight
2024-11-09 15:11   ` Brian Gerst
2024-11-09 21:27     ` David Laight
2025-01-04  9:14 ` Ard Biesheuvel

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