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10267e1729
Enable testing kernel. Fix compile errors by using new kernel APIs. Fix fuzz by manually editing patches to ensure the code goes in the right place. For 721-NET-no-auto-carrier-off-support.patch, revert upstream commit a307593a6 to keep the OpenWrt ralink driver operational. Add mt7621-pci-phy patch to select REGMAP_MMIO as discussed in PR #3693 and #3952. Run automatic quilt refresh on the rest. Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
46 lines
1.5 KiB
Diff
46 lines
1.5 KiB
Diff
From: Tobias Wolf <dev-NTEO@vplace.de>
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Subject: [v2] MIPS: Fix memory reservation in bootmem_init for certain non-usermem setups
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Commit 67a3ba25aa95 ("MIPS: Fix incorrect mem=X@Y handling") introduced a new
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issue for rt288x where "PHYS_OFFSET" is 0x0 but the calculated "ramstart" is
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not. As the prerequisite of custom memory map has been removed, this results
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in the full memory range of 0x0 - 0x8000000 to be marked as reserved for this
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platform.
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v2: Correctly compare that usermem is not null.
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This patch adds the originally intended prerequisite again.
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Signed-off-by: Tobias Wolf <dev-NTEO@vplace.de>
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---
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--- a/arch/mips/kernel/setup.c
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+++ b/arch/mips/kernel/setup.c
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@@ -249,6 +249,8 @@ static unsigned long __init init_initrd(
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* Initialize the bootmem allocator. It also setup initrd related data
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* if needed.
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*/
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+static int usermem __initdata;
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+
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#if defined(CONFIG_SGI_IP27) || (defined(CONFIG_CPU_LOONGSON64) && defined(CONFIG_NUMA))
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static void __init bootmem_init(void)
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@@ -288,7 +290,7 @@ static void __init bootmem_init(void)
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/*
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* Reserve any memory between the start of RAM and PHYS_OFFSET
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*/
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- if (ramstart > PHYS_OFFSET)
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+ if (usermem && ramstart > PHYS_OFFSET)
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memblock_reserve(PHYS_OFFSET, ramstart - PHYS_OFFSET);
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if (PFN_UP(ramstart) > ARCH_PFN_OFFSET) {
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@@ -336,8 +338,6 @@ static void __init bootmem_init(void)
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#endif /* CONFIG_SGI_IP27 */
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-static int usermem __initdata;
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-
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static int __init early_parse_mem(char *p)
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{
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phys_addr_t start, size;
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