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authorLinus Torvalds <torvalds@linux-foundation.org>2023-06-29 23:21:20 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2023-06-29 23:21:20 -0700
commit075e333591e6aee7b0008dd6c14c361bb1509821 (patch)
treeea2e53679cace84794d890a7c7fcba6973e5d3b2 /mm
parentea3f8272876f2958463992f6736ab690fde7fa9c (diff)
parentde649e7f5edb2e61dbd3d64deae44cb165e657ad (diff)
Merge tag 'memblock-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
Pull memblock updates from Mike Rapoport: - add test for memblock_alloc_node() - minor coding style fixes - add flags and nid info in memblock debugfs * tag 'memblock-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock: memblock: Update nid info in memblock debugfs memblock: Add flags and nid info in memblock debugfs Fix some coding style errors in memblock.c Add tests for memblock_alloc_node()
Diffstat (limited to 'mm')
-rw-r--r--mm/memblock.c34
1 files changed, 29 insertions, 5 deletions
diff --git a/mm/memblock.c b/mm/memblock.c
index 388bc0c78998..f9e61e565a53 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -156,10 +156,10 @@ static __refdata struct memblock_type *memblock_memory = &memblock.memory;
} while (0)
static int memblock_debug __initdata_memblock;
-static bool system_has_some_mirror __initdata_memblock = false;
+static bool system_has_some_mirror __initdata_memblock;
static int memblock_can_resize __initdata_memblock;
-static int memblock_memory_in_slab __initdata_memblock = 0;
-static int memblock_reserved_in_slab __initdata_memblock = 0;
+static int memblock_memory_in_slab __initdata_memblock;
+static int memblock_reserved_in_slab __initdata_memblock;
static enum memblock_flags __init_memblock choose_memblock_flags(void)
{
@@ -2178,20 +2178,44 @@ void __init memblock_free_all(void)
}
#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_ARCH_KEEP_MEMBLOCK)
+static const char * const flagname[] = {
+ [ilog2(MEMBLOCK_HOTPLUG)] = "HOTPLUG",
+ [ilog2(MEMBLOCK_MIRROR)] = "MIRROR",
+ [ilog2(MEMBLOCK_NOMAP)] = "NOMAP",
+ [ilog2(MEMBLOCK_DRIVER_MANAGED)] = "DRV_MNG",
+};
static int memblock_debug_show(struct seq_file *m, void *private)
{
struct memblock_type *type = m->private;
struct memblock_region *reg;
- int i;
+ int i, j, nid;
+ unsigned int count = ARRAY_SIZE(flagname);
phys_addr_t end;
for (i = 0; i < type->cnt; i++) {
reg = &type->regions[i];
end = reg->base + reg->size - 1;
+ nid = memblock_get_region_node(reg);
seq_printf(m, "%4d: ", i);
- seq_printf(m, "%pa..%pa\n", &reg->base, &end);
+ seq_printf(m, "%pa..%pa ", &reg->base, &end);
+ if (nid != MAX_NUMNODES)
+ seq_printf(m, "%4d ", nid);
+ else
+ seq_printf(m, "%4c ", 'x');
+ if (reg->flags) {
+ for (j = 0; j < count; j++) {
+ if (reg->flags & (1U << j)) {
+ seq_printf(m, "%s\n", flagname[j]);
+ break;
+ }
+ }
+ if (j == count)
+ seq_printf(m, "%s\n", "UNKNOWN");
+ } else {
+ seq_printf(m, "%s\n", "NONE");
+ }
}
return 0;
}