Hongchen Zhang (4): Revert "LoongArch: kdump: Add high memory reservation" Revert "LoongArch: Fix kdump failure on v40 interface specification" Revert "LoongArch: kdump: Add memory reservation for old kernel" LoongArch: fix efi map page table error
arch/loongarch/kernel/efi.c | 39 ++++++++++++--- arch/loongarch/kernel/setup.c | 94 +++++------------------------------ 2 files changed, 44 insertions(+), 89 deletions(-)
LoongArch inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9QMTK
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This reverts commit d379ed4dbc906cdbb6fce39ff0dc7b9c72854f18. --- arch/loongarch/kernel/setup.c | 49 +++-------------------------------- 1 file changed, 3 insertions(+), 46 deletions(-)
diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c index bfe1f05b279d..9197f974edfe 100644 --- a/arch/loongarch/kernel/setup.c +++ b/arch/loongarch/kernel/setup.c @@ -383,49 +383,13 @@ static void __init bootcmdline_init(char **cmdline_p) * memory area used by the previous production kernel should be reserved to * avoid destroy to the captured data. */ -static void reserve_oldmem_region(int node, unsigned long s0, unsigned long e0) +static void reserve_oldmem_region(void) { #ifdef CONFIG_CRASH_DUMP - unsigned long s1, e1; - if (!is_kdump_kernel()) return;
- if ((e0 - s0) > (SZ_1G >> PAGE_SHIFT)) - e0 = e0 - (SZ_512M >> PAGE_SHIFT); - - /* crashmem_start is crashk_res reserved by primary production kernel */ - s1 = PFN_UP(crashmem_start); - e1 = PFN_DOWN(crashmem_start + crashmem_size); - - if (s1 == 0) - return; - - if (node == 0) { - memblock_reserve(PFN_PHYS(s0), (s1 - s0) << PAGE_SHIFT); - memblock_reserve(PFN_PHYS(e1), (e0 - e1) << PAGE_SHIFT); - } else { - memblock_reserve(PFN_PHYS(s0), (e0 - s0) << PAGE_SHIFT); - } -#endif -} - -/* Traditionally, LoongArch's contiguous low memory is 256M, so crashkernel=X@Y is - * unable to be large enough in some cases. Thus, if the total memory of a node - * is more than 1GB, we reserve the top 512MB for the capture kernel - */ -static void reserve_crashm_region(int node, unsigned long s0, unsigned long e0) -{ -#ifdef CONFIG_KEXEC - if (crashk_res.start == crashk_res.end) - return; - - if ((e0 - s0) <= (SZ_1G >> PAGE_SHIFT)) - return; - - s0 = e0 - (SZ_512M >> PAGE_SHIFT); - - memblock_reserve(PFN_PHYS(s0), (e0 - s0) << PAGE_SHIFT); + memblock_cap_memory_range(crashmem_start, crashmem_size); #endif }
@@ -468,16 +432,9 @@ static void __init check_kernel_sections_mem(void) */ static void __init arch_mem_init(char **cmdline_p) { - unsigned int node; - unsigned long start_pfn, end_pfn; - arch_reserve_vmcore(); arch_parse_crashkernel(); - for_each_online_node(node) { - get_pfn_range_for_nid(node, &start_pfn, &end_pfn); - reserve_crashm_region(node, start_pfn, end_pfn); - reserve_oldmem_region(node, start_pfn, end_pfn); - } + reserve_oldmem_region();
if (usermem) pr_info("User-defined physical RAM map overwrite\n");
LoongArch inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9QMTK
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This reverts commit b859d4add1bd255823ace0b18d77e2fe714327a0. --- arch/loongarch/kernel/setup.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c index 9197f974edfe..1581a8700124 100644 --- a/arch/loongarch/kernel/setup.c +++ b/arch/loongarch/kernel/setup.c @@ -395,6 +395,10 @@ static void reserve_oldmem_region(void)
void __init platform_init(void) { + arch_reserve_vmcore(); + arch_parse_crashkernel(); + reserve_oldmem_region(); + #ifdef CONFIG_ACPI_TABLE_UPGRADE acpi_table_upgrade(); #endif @@ -432,10 +436,6 @@ static void __init check_kernel_sections_mem(void) */ static void __init arch_mem_init(char **cmdline_p) { - arch_reserve_vmcore(); - arch_parse_crashkernel(); - reserve_oldmem_region(); - if (usermem) pr_info("User-defined physical RAM map overwrite\n");
LoongArch inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9QMTK
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This reverts commit 2dc80ab461df0f00168cb685f494f4ea83d1ce43. --- arch/loongarch/kernel/setup.c | 45 ++++++++--------------------------- 1 file changed, 10 insertions(+), 35 deletions(-)
diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c index 1581a8700124..80874fa75337 100644 --- a/arch/loongarch/kernel/setup.c +++ b/arch/loongarch/kernel/setup.c @@ -69,8 +69,6 @@ EXPORT_SYMBOL(cpu_data); struct loongson_board_info b_info; static const char dmi_empty_string[] = " ";
-static phys_addr_t crashmem_start, crashmem_size; - /* * Setup information * @@ -208,15 +206,6 @@ static int __init early_parse_mem(char *p) return -EINVAL; }
- start = 0; - size = memparse(p, &p); - if (*p == '@') - start = memparse(p + 1, &p); - else { - pr_err("Invalid format!\n"); - return -EINVAL; - } - /* * If a user specifies memory size, we * blow away any automatically generated @@ -224,14 +213,16 @@ static int __init early_parse_mem(char *p) */ if (usermem == 0) { usermem = 1; - if (!strstr(boot_command_line, "elfcorehdr")) { - memblock_remove(memblock_start_of_DRAM(), - memblock_end_of_DRAM() - memblock_start_of_DRAM()); - } else { - crashmem_start = start; - crashmem_size = size; - return 0; - } + memblock_remove(memblock_start_of_DRAM(), + memblock_end_of_DRAM() - memblock_start_of_DRAM()); + } + start = 0; + size = memparse(p, &p); + if (*p == '@') + start = memparse(p + 1, &p); + else { + pr_err("Invalid format!\n"); + return -EINVAL; }
if (!IS_ENABLED(CONFIG_NUMA)) @@ -378,26 +369,10 @@ static void __init bootcmdline_init(char **cmdline_p) *cmdline_p = boot_command_line; }
-/* - * After the kdump operation is performed to enter the capture kernel, the - * memory area used by the previous production kernel should be reserved to - * avoid destroy to the captured data. - */ -static void reserve_oldmem_region(void) -{ -#ifdef CONFIG_CRASH_DUMP - if (!is_kdump_kernel()) - return; - - memblock_cap_memory_range(crashmem_start, crashmem_size); -#endif -} - void __init platform_init(void) { arch_reserve_vmcore(); arch_parse_crashkernel(); - reserve_oldmem_region();
#ifdef CONFIG_ACPI_TABLE_UPGRADE acpi_table_upgrade();
LoongArch inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9QMTK
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we should map all efi used memory, not the kernel usable memory.
Signed-off-by: Yun Liu liuyun@loongson.cn Signed-off-by: Hongchen Zhang zhanghongchen@loongson.cn --- arch/loongarch/kernel/efi.c | 39 +++++++++++++++++++++++++++++-------- 1 file changed, 31 insertions(+), 8 deletions(-)
diff --git a/arch/loongarch/kernel/efi.c b/arch/loongarch/kernel/efi.c index b132af112664..140b43d3f182 100644 --- a/arch/loongarch/kernel/efi.c +++ b/arch/loongarch/kernel/efi.c @@ -69,8 +69,10 @@ static int __init efimap_populate_hugepages( if (pud_none(*pud)) { void *p = memblock_alloc_low(PAGE_SIZE, PAGE_SIZE);
- if (!p) + if (!p) { + pr_err("can not alloc efimap huge pages!\n"); return -1; + } pmd_init(p); pud_populate(&init_mm, pud, p); } @@ -88,7 +90,8 @@ static void __init efi_map_pgt(void) { unsigned long node; unsigned long start, end; - unsigned long start_pfn, end_pfn; + efi_memory_desc_t *md; + u32 mem_type;
pgd_efi = memblock_alloc_low(PAGE_SIZE, PAGE_SIZE); if (!pgd_efi) { @@ -105,13 +108,33 @@ static void __init efi_map_pgt(void) /* MMIO Registers, Uncached */ efimap_populate_hugepages(SZ_256M | (node << 44), SZ_512M | (node << 44), PAGE_KERNEL_SUC); + }
- get_pfn_range_for_nid(node, &start_pfn, &end_pfn); - start = ALIGN_DOWN(start_pfn << PAGE_SHIFT, PMD_SIZE); - end = ALIGN(end_pfn << PAGE_SHIFT, PMD_SIZE); - - /* System memory, Cached */ - efimap_populate_hugepages(node ? start : SZ_512M, end, PAGE_KERNEL); + /* Parse memory information */ + for_each_efi_memory_desc(md) { + mem_type = md->type; + start = ALIGN_DOWN(md->phys_addr, PMD_SIZE); + end = ALIGN(start + (md->num_pages << EFI_PAGE_SHIFT), PMD_SIZE); + node = start >> 44; + + switch (mem_type) { + case EFI_LOADER_CODE: + case EFI_LOADER_DATA: + case EFI_BOOT_SERVICES_CODE: + case EFI_BOOT_SERVICES_DATA: + case EFI_PAL_CODE: + case EFI_UNUSABLE_MEMORY: + case EFI_ACPI_RECLAIM_MEMORY: + case EFI_RESERVED_TYPE: + case EFI_RUNTIME_SERVICES_CODE: + case EFI_RUNTIME_SERVICES_DATA: + efimap_populate_hugepages(node ? start : SZ_512M, end, PAGE_KERNEL); + break; + case EFI_MEMORY_MAPPED_IO: + case EFI_MEMORY_MAPPED_IO_PORT_SPACE: + efimap_populate_hugepages(node ? start : SZ_512M, end, PAGE_KERNEL_SUC); + break; + } } }
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