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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 v6 13/15] percpu: Remove PERCPU_VADDR()
Date: Thu, 23 Jan 2025 14:07:45 -0500	[thread overview]
Message-ID: <20250123190747.745588-14-brgerst@gmail.com> (raw)
In-Reply-To: <20250123190747.745588-1-brgerst@gmail.com>

x86-64 was the last user.

Signed-off-by: Brian Gerst <brgerst@gmail.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
---
 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 4a69658739de..b2cbc1628118 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -1072,47 +1072,13 @@ defined(CONFIG_AUTOFDO_CLANG) || defined(CONFIG_PROPELLER_CLANG)
 	__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);						\
-- 
2.47.1


  parent reply	other threads:[~2025-01-23 19:08 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-23 19:07 [PATCH v6 00/15] x86-64: Stack protector and percpu improvements Brian Gerst
2025-01-23 19:07 ` [PATCH v6 01/15] x86: Raise minimum GCC version to 8.1 Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] x86/build: Raise the " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 02/15] x86/stackprotector: Remove stack protector test scripts Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 03/15] x86/boot: Disable stack protector for early boot code Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 04/15] x86/pvh: Use fixed_percpu_data for early boot GSBASE Brian Gerst
2025-01-25 15:06   ` Borislav Petkov
2025-01-25 16:51     ` Brian Gerst
2025-01-26  3:57       ` Borislav Petkov
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-03-04 22:26   ` [PATCH v6 04/15] " Mateusz Guzik
2025-03-04 23:44     ` H. Peter Anvin
2025-03-04 23:49       ` Mateusz Guzik
2025-03-05  7:16         ` Uros Bizjak
2025-03-05 12:01           ` Mateusz Guzik
2025-01-23 19:07 ` [PATCH v6 05/15] x86/relocs: Handle R_X86_64_REX_GOTPCRELX relocations Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 06/15] x86/module: Deal with GOT based stack cookie load on Clang < 17 Brian Gerst
2025-02-18  9:07   ` Ingo Molnar
2025-02-18 14:05     ` Brian Gerst
2025-02-18 21:52       ` H. Peter Anvin
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Ard Biesheuvel
2025-01-23 19:07 ` [PATCH v6 07/15] x86/stackprotector/64: Convert to normal percpu variable Brian Gerst
2025-02-18  9:14   ` Ingo Molnar
2025-02-18 12:11   ` [tip: x86/asm] x86/stackprotector/64: Convert to normal per-CPU variable tip-bot2 for Brian Gerst
2025-02-19 19:59   ` [PATCH v6 07/15] x86/stackprotector/64: Convert to normal percpu variable Nathan Chancellor
2025-02-20  9:23     ` Ard Biesheuvel
2025-03-12 11:59   ` [tip: x86/asm] x86/stackprotector/64: Only export __ref_stack_chk_guard on CONFIG_SMP tip-bot2 for Ingo Molnar
2025-03-19 11:03   ` [tip: x86/core] " tip-bot2 for Ingo Molnar
2025-01-23 19:07 ` [PATCH v6 08/15] x86/percpu/64: Use relative percpu offsets Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 09/15] x86/percpu/64: Remove fixed_percpu_data Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 10/15] x86/boot/64: Remove inverse relocations Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 11/15] x86/percpu/64: Remove INIT_PER_CPU macros Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 12/15] percpu: Remove PER_CPU_FIRST_SECTION Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` Brian Gerst [this message]
2025-02-18 12:11   ` [tip: x86/asm] percpu: Remove PERCPU_VADDR() tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 14/15] percpu: Remove __per_cpu_load Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 15/15] kallsyms: Remove KALLSYMS_ABSOLUTE_PERCPU Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-02-18  9:22 ` [PATCH v6 00/15] x86-64: Stack protector and percpu improvements Ingo Molnar
2025-02-18 17:46   ` Uros Bizjak
2025-02-19 11:47     ` Ingo Molnar
2025-02-19 13:18       ` Brian Gerst
2025-02-20  9:51         ` Uros Bizjak
2025-02-20 10:05           ` Ard Biesheuvel
2025-02-20 10:46             ` Uros Bizjak
2025-02-20 10:52               ` Ard Biesheuvel
2025-02-20 10:56                 ` Uros Bizjak
2025-02-20 17:24                 ` Brian Gerst
2025-02-20 17:35                   ` Ard Biesheuvel
2025-02-20 17:47                     ` Brian Gerst
2025-02-20 17:59                       ` Brian Gerst
2025-02-20 20:09                         ` Uros Bizjak
2025-02-20 13:26         ` Ingo Molnar
2025-02-20 17:05           ` Brian Gerst
2025-02-22 12:25             ` Ingo Molnar

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