mirror of
https://github.com/brain-hackers/linux-brain.git
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441692aafc
Pull ARM updates from Russell King: - add support for ELF fdpic binaries on both MMU and noMMU platforms - linker script cleanups - support for compressed .data section for XIP images - discard memblock arrays when possible - various cleanups - atomic DMA pool updates - better diagnostics of missing/corrupt device tree - export information to allow userspace kexec tool to place images more inteligently, so that the device tree isn't overwritten by the booting kernel - make early_printk more efficient on semihosted systems - noMMU cleanups - SA1111 PCMCIA update in preparation for further cleanups * 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (38 commits) ARM: 8719/1: NOMMU: work around maybe-uninitialized warning ARM: 8717/2: debug printch/printascii: translate '\n' to "\r\n" not "\n\r" ARM: 8713/1: NOMMU: Support MPU in XIP configuration ARM: 8712/1: NOMMU: Use more MPU regions to cover memory ARM: 8711/1: V7M: Add support for MPU to M-class ARM: 8710/1: Kconfig: Kill CONFIG_VECTORS_BASE ARM: 8709/1: NOMMU: Disallow MPU for XIP ARM: 8708/1: NOMMU: Rework MPU to be mostly done in C ARM: 8707/1: NOMMU: Update MPU accessors to use cp15 helpers ARM: 8706/1: NOMMU: Move out MPU setup in separate module ARM: 8702/1: head-common.S: Clear lr before jumping to start_kernel() ARM: 8705/1: early_printk: use printascii() rather than printch() ARM: 8703/1: debug.S: move hexbuf to a writable section ARM: add additional table to compressed kernel ARM: decompressor: fix BSS size calculation pcmcia: sa1111: remove special sa1111 mmio accessors pcmcia: sa1111: use sa1111_get_irq() to obtain IRQ resources ARM: better diagnostics with missing/corrupt dtb ARM: 8699/1: dma-mapping: Remove init_dma_coherent_pool_size() ARM: 8698/1: dma-mapping: Mark atomic_pool as __ro_after_init ..
50 lines
953 B
C
50 lines
953 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ARM_MMU_H
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#define __ARM_MMU_H
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#ifdef CONFIG_MMU
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typedef struct {
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#ifdef CONFIG_CPU_HAS_ASID
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atomic64_t id;
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#else
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int switch_pending;
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#endif
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unsigned int vmalloc_seq;
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unsigned long sigpage;
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#ifdef CONFIG_VDSO
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unsigned long vdso;
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#endif
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#ifdef CONFIG_BINFMT_ELF_FDPIC
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unsigned long exec_fdpic_loadmap;
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unsigned long interp_fdpic_loadmap;
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#endif
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} mm_context_t;
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#ifdef CONFIG_CPU_HAS_ASID
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#define ASID_BITS 8
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#define ASID_MASK ((~0ULL) << ASID_BITS)
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#define ASID(mm) ((unsigned int)((mm)->context.id.counter & ~ASID_MASK))
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#else
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#define ASID(mm) (0)
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#endif
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#else
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/*
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* From nommu.h:
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* Copyright (C) 2002, David McCullough <davidm@snapgear.com>
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* modified for 2.6 by Hyok S. Choi <hyok.choi@samsung.com>
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*/
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typedef struct {
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unsigned long end_brk;
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#ifdef CONFIG_BINFMT_ELF_FDPIC
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unsigned long exec_fdpic_loadmap;
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unsigned long interp_fdpic_loadmap;
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#endif
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} mm_context_t;
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#endif
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#endif
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