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From: Ard Biesheuvel <ardb@google.com>
To: linux-arm-kernel@lists.infradead.org
Cc: Ard Biesheuvel <ardb@kernel.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	 Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	 Ryan Roberts <ryan.roberts@arm.com>,
	Anshuman Khandual <anshuman.khandual@arm.com>,
	 Kees Cook <keescook@chromium.org>
Subject: [PATCH v6 22/41] arm64: kernel: Remove early fdt remap code
Date: Wed, 29 Nov 2023 12:16:18 +0100	[thread overview]
Message-ID: <20231129111555.3594833-65-ardb@google.com> (raw)
In-Reply-To: <20231129111555.3594833-43-ardb@google.com>

From: Ard Biesheuvel <ardb@kernel.org>

The early FDT remap code is no longer used so let's drop it.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
 arch/arm64/include/asm/setup.h |  3 ---
 arch/arm64/kernel/setup.c      | 15 ---------------
 2 files changed, 18 deletions(-)

diff --git a/arch/arm64/include/asm/setup.h b/arch/arm64/include/asm/setup.h
index 2e4d7da74fb8..ba269a7a3201 100644
--- a/arch/arm64/include/asm/setup.h
+++ b/arch/arm64/include/asm/setup.h
@@ -7,9 +7,6 @@
 
 #include <uapi/asm/setup.h>
 
-void *get_early_fdt_ptr(void);
-void early_fdt_map(u64 dt_phys);
-
 /*
  * These two variables are used in the head.S file.
  */
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 417a8a86b2db..4b0b3515ee20 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -166,21 +166,6 @@ static void __init smp_build_mpidr_hash(void)
 		pr_warn("Large number of MPIDR hash buckets detected\n");
 }
 
-static void *early_fdt_ptr __initdata;
-
-void __init *get_early_fdt_ptr(void)
-{
-	return early_fdt_ptr;
-}
-
-asmlinkage void __init early_fdt_map(u64 dt_phys)
-{
-	int fdt_size;
-
-	early_fixmap_init();
-	early_fdt_ptr = fixmap_remap_fdt(dt_phys, &fdt_size, PAGE_KERNEL);
-}
-
 static void __init setup_machine_fdt(phys_addr_t dt_phys)
 {
 	int size;
-- 
2.43.0.rc1.413.gea7ed67945-goog


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  parent reply	other threads:[~2023-11-29 12:31 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-29 11:15 [PATCH v6 00/41] arm64: Reorganize kernel VA space for LPA2 Ard Biesheuvel
2023-11-29 11:15 ` [PATCH v6 01/41] arm64: kernel: Disable latent_entropy GCC plugin in early C runtime Ard Biesheuvel
2023-11-30  4:44   ` Anshuman Khandual
2023-11-29 11:15 ` [PATCH v6 02/41] arm64: mm: Take potential load offset into account when KASLR is off Ard Biesheuvel
2023-11-30  5:23   ` Anshuman Khandual
2023-12-04 14:12   ` Mark Rutland
2023-12-04 15:40     ` Ard Biesheuvel
2023-11-29 11:15 ` [PATCH v6 03/41] arm64: mm: get rid of kimage_vaddr global variable Ard Biesheuvel
2023-11-30  5:38   ` Anshuman Khandual
2023-12-04 14:37     ` Mark Rutland
2023-12-05  2:26       ` Anshuman Khandual
2023-11-29 11:16 ` [PATCH v6 04/41] arm64: mm: Move PCI I/O emulation region above the vmemmap region Ard Biesheuvel
2023-11-30  7:59   ` Anshuman Khandual
2023-11-30  8:02     ` Ard Biesheuvel
2023-11-30  8:52       ` Anshuman Khandual
2023-11-30  8:56         ` Ard Biesheuvel
2023-12-11 13:57   ` Mark Rutland
2023-12-11 14:10     ` Ard Biesheuvel
2023-12-11 14:21       ` Mark Rutland
2023-11-29 11:16 ` [PATCH v6 05/41] arm64: mm: Move fixmap region above " Ard Biesheuvel
2023-12-11 14:23   ` Mark Rutland
2023-11-29 11:16 ` [PATCH v6 06/41] arm64: ptdump: Allow all region boundaries to be defined at boot time Ard Biesheuvel
2023-12-11 14:15   ` Mark Rutland
2023-11-29 11:16 ` [PATCH v6 07/41] arm64: ptdump: Discover start of vmemmap region at runtime Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 08/41] arm64: vmemmap: Avoid base2 order of struct page size to dimension region Ard Biesheuvel
2023-12-11 14:35   ` Mark Rutland
2023-12-12 21:34     ` Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 09/41] arm64: mm: Reclaim unused vmemmap region for vmalloc use Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 10/41] arm64: kaslr: Adjust randomization range dynamically Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 11/41] arm64: kernel: Manage absolute relocations in code built under pi/ Ard Biesheuvel
2023-11-29 12:27   ` Marc Zyngier
2023-11-29 12:46     ` Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 12/41] arm64: kernel: Don't rely on objcopy to make code under pi/ __init Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 13/41] arm64: head: move relocation handling to C code Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 14/41] arm64: idreg-override: Omit non-NULL checks for override pointer Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 15/41] arm64: idreg-override: Prepare for place relative reloc patching Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 16/41] arm64: idreg-override: Avoid parameq() and parameqn() Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 17/41] arm64: idreg-override: avoid strlen() to check for empty strings Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 18/41] arm64: idreg-override: Avoid sprintf() for simple string concatenation Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 19/41] arm64: idreg-override: Avoid kstrtou64() to parse a single hex digit Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 20/41] arm64/kernel: Move 'nokaslr' parsing out of early idreg code Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 21/41] arm64: idreg-override: Move to early mini C runtime Ard Biesheuvel
2023-11-29 11:16 ` Ard Biesheuvel [this message]
2023-11-29 11:16 ` [PATCH v6 23/41] arm64: head: Clear BSS and the kernel page tables in one go Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 24/41] arm64: Move feature overrides into the BSS section Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 25/41] arm64: head: Run feature override detection before mapping the kernel Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 26/41] arm64: head: move dynamic shadow call stack patching into early C runtime Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 27/41] arm64: cpufeature: Add helper to test for CPU feature overrides Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 28/41] arm64: kaslr: Use feature override instead of parsing the cmdline again Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 29/41] arm64: idreg-override: Create a pseudo feature for rodata=off Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 30/41] arm64: Add helpers to probe local CPU for PAC and BTI support Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 31/41] arm64: head: allocate more pages for the kernel mapping Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 32/41] arm64: head: move memstart_offset_seed handling to C code Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 33/41] arm64: mm: Make kaslr_requires_kpti() a static inline Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 34/41] arm64: mmu: Make __cpu_replace_ttbr1() out of line Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 35/41] arm64: head: Move early kernel mapping routines into C code Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 36/41] arm64: mm: Use 48-bit virtual addressing for the permanent ID map Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 37/41] arm64: pgtable: Decouple PGDIR size macros from PGD/PUD/PMD levels Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 38/41] arm64: kernel: Create initial ID map from C code Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 39/41] arm64: mm: avoid fixmap for early swapper_pg_dir updates Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 40/41] arm64: mm: omit redundant remap of kernel image Ard Biesheuvel
2023-11-29 11:16 ` [PATCH v6 41/41] arm64: Revert "mm: provide idmap pointer to cpu_replace_ttbr1()" Ard Biesheuvel
2023-12-12 17:20 ` [PATCH v6 00/41] arm64: Reorganize kernel VA space for LPA2 Will Deacon

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