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-rw-r--r--arch/x86/kernel/setup.c88
1 files changed, 54 insertions, 34 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index a59f6a6df5e..420e6419785 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -31,6 +31,7 @@
#include <linux/apm_bios.h>
#include <linux/initrd.h>
#include <linux/bootmem.h>
+#include <linux/memblock.h>
#include <linux/seq_file.h>
#include <linux/console.h>
#include <linux/mca.h>
@@ -301,7 +302,7 @@ static inline void init_gbpages(void)
static void __init reserve_brk(void)
{
if (_brk_end > _brk_start)
- reserve_early(__pa(_brk_start), __pa(_brk_end), "BRK");
+ memblock_x86_reserve_range(__pa(_brk_start), __pa(_brk_end), "BRK");
/* Mark brk area as locked down and no longer taking any
new allocations */
@@ -323,17 +324,16 @@ static void __init relocate_initrd(void)
char *p, *q;
/* We need to move the initrd down into lowmem */
- ramdisk_here = find_e820_area(0, end_of_lowmem, area_size,
+ ramdisk_here = memblock_find_in_range(0, end_of_lowmem, area_size,
PAGE_SIZE);
- if (ramdisk_here == -1ULL)
+ if (ramdisk_here == MEMBLOCK_ERROR)
panic("Cannot find place for new RAMDISK of size %lld\n",
ramdisk_size);
/* Note: this includes all the lowmem currently occupied by
the initrd, we rely on that fact to keep the data intact. */
- reserve_early(ramdisk_here, ramdisk_here + area_size,
- "NEW RAMDISK");
+ memblock_x86_reserve_range(ramdisk_here, ramdisk_here + area_size, "NEW RAMDISK");
initrd_start = ramdisk_here + PAGE_OFFSET;
initrd_end = initrd_start + ramdisk_size;
printk(KERN_INFO "Allocated new RAMDISK: %08llx - %08llx\n",
@@ -389,7 +389,7 @@ static void __init reserve_initrd(void)
initrd_start = 0;
if (ramdisk_size >= (end_of_lowmem>>1)) {
- free_early(ramdisk_image, ramdisk_end);
+ memblock_x86_free_range(ramdisk_image, ramdisk_end);
printk(KERN_ERR "initrd too large to handle, "
"disabling initrd\n");
return;
@@ -412,7 +412,7 @@ static void __init reserve_initrd(void)
relocate_initrd();
- free_early(ramdisk_image, ramdisk_end);
+ memblock_x86_free_range(ramdisk_image, ramdisk_end);
}
#else
static void __init reserve_initrd(void)
@@ -468,7 +468,7 @@ static void __init e820_reserve_setup_data(void)
e820_print_map("reserve setup_data");
}
-static void __init reserve_early_setup_data(void)
+static void __init memblock_x86_reserve_range_setup_data(void)
{
struct setup_data *data;
u64 pa_data;
@@ -480,7 +480,7 @@ static void __init reserve_early_setup_data(void)
while (pa_data) {
data = early_memremap(pa_data, sizeof(*data));
sprintf(buf, "setup data %x", data->type);
- reserve_early(pa_data, pa_data+sizeof(*data)+data->len, buf);
+ memblock_x86_reserve_range(pa_data, pa_data+sizeof(*data)+data->len, buf);
pa_data = data->next;
early_iounmap(data, sizeof(*data));
}
@@ -501,6 +501,7 @@ static inline unsigned long long get_total_mem(void)
return total << PAGE_SHIFT;
}
+#define DEFAULT_BZIMAGE_ADDR_MAX 0x37FFFFFF
static void __init reserve_crashkernel(void)
{
unsigned long long total_mem;
@@ -518,23 +519,27 @@ static void __init reserve_crashkernel(void)
if (crash_base <= 0) {
const unsigned long long alignment = 16<<20; /* 16M */
- crash_base = find_e820_area(alignment, ULONG_MAX, crash_size,
- alignment);
- if (crash_base == -1ULL) {
+ /*
+ * kexec want bzImage is below DEFAULT_BZIMAGE_ADDR_MAX
+ */
+ crash_base = memblock_find_in_range(alignment,
+ DEFAULT_BZIMAGE_ADDR_MAX, crash_size, alignment);
+
+ if (crash_base == MEMBLOCK_ERROR) {
pr_info("crashkernel reservation failed - No suitable area found.\n");
return;
}
} else {
unsigned long long start;
- start = find_e820_area(crash_base, ULONG_MAX, crash_size,
- 1<<20);
+ start = memblock_find_in_range(crash_base,
+ crash_base + crash_size, crash_size, 1<<20);
if (start != crash_base) {
pr_info("crashkernel reservation failed - memory is in use.\n");
return;
}
}
- reserve_early(crash_base, crash_base + crash_size, "CRASH KERNEL");
+ memblock_x86_reserve_range(crash_base, crash_base + crash_size, "CRASH KERNEL");
printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
"for crashkernel (System RAM: %ldMB)\n",
@@ -614,7 +619,7 @@ static __init void reserve_ibft_region(void)
addr = find_ibft_region(&size);
if (size)
- reserve_early_overlap_ok(addr, addr + size, "ibft");
+ memblock_x86_reserve_range(addr, addr + size, "* ibft");
}
static unsigned reserve_low = CONFIG_X86_RESERVE_LOW << 10;
@@ -664,6 +669,15 @@ static int __init parse_reservelow(char *p)
early_param("reservelow", parse_reservelow);
+static u64 __init get_max_mapped(void)
+{
+ u64 end = max_pfn_mapped;
+
+ end <<= PAGE_SHIFT;
+
+ return end;
+}
+
/*
* Determine if we were loaded by an EFI loader. If so, then we have also been
* passed the efi memmap, systab, etc., so we should use these data structures
@@ -738,7 +752,7 @@ void __init setup_arch(char **cmdline_p)
#endif
4)) {
efi_enabled = 1;
- efi_reserve_early();
+ efi_memblock_x86_reserve_range();
}
#endif
@@ -795,7 +809,7 @@ void __init setup_arch(char **cmdline_p)
x86_report_nx();
/* after early param, so could get panic from serial */
- reserve_early_setup_data();
+ memblock_x86_reserve_range_setup_data();
if (acpi_mps_check()) {
#ifdef CONFIG_X86_LOCAL_APIC
@@ -848,8 +862,6 @@ void __init setup_arch(char **cmdline_p)
*/
max_pfn = e820_end_of_ram_pfn();
- /* preallocate 4k for mptable mpc */
- early_reserve_e820_mpc_new();
/* update e820 for memory not covered by WB MTRRs */
mtrr_bp_init();
if (mtrr_trim_uncached_memory(max_pfn))
@@ -871,18 +883,8 @@ void __init setup_arch(char **cmdline_p)
max_low_pfn = max_pfn;
high_memory = (void *)__va(max_pfn * PAGE_SIZE - 1) + 1;
- max_pfn_mapped = KERNEL_IMAGE_SIZE >> PAGE_SHIFT;
-#endif
-
-#ifdef CONFIG_X86_CHECK_BIOS_CORRUPTION
- setup_bios_corruption_check();
#endif
- printk(KERN_DEBUG "initial memory mapped : 0 - %08lx\n",
- max_pfn_mapped<<PAGE_SHIFT);
-
- reserve_brk();
-
/*
* Find and reserve possible boot-time SMP configuration:
*/
@@ -890,6 +892,26 @@ void __init setup_arch(char **cmdline_p)
reserve_ibft_region();
+ /*
+ * Need to conclude brk, before memblock_x86_fill()
+ * it could use memblock_find_in_range, could overlap with
+ * brk area.
+ */
+ reserve_brk();
+
+ memblock.current_limit = get_max_mapped();
+ memblock_x86_fill();
+
+ /* preallocate 4k for mptable mpc */
+ early_reserve_e820_mpc_new();
+
+#ifdef CONFIG_X86_CHECK_BIOS_CORRUPTION
+ setup_bios_corruption_check();
+#endif
+
+ printk(KERN_DEBUG "initial memory mapped : 0 - %08lx\n",
+ max_pfn_mapped<<PAGE_SHIFT);
+
reserve_trampoline_memory();
#ifdef CONFIG_ACPI_SLEEP
@@ -913,6 +935,7 @@ void __init setup_arch(char **cmdline_p)
max_low_pfn = max_pfn;
}
#endif
+ memblock.current_limit = get_max_mapped();
/*
* NOTE: On x86-32, only from this point on, fixmaps are ready for use.
@@ -951,10 +974,7 @@ void __init setup_arch(char **cmdline_p)
#endif
initmem_init(0, max_pfn, acpi, k8);
-#ifndef CONFIG_NO_BOOTMEM
- early_res_to_bootmem(0, max_low_pfn<<PAGE_SHIFT);
-#endif
-
+ memblock_find_dma_reserve();
dma32_reserve_bootmem();
#ifdef CONFIG_KVM_CLOCK
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-16 09:06:15 +0000