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authorTakashi Iwai <tiwai@suse.de>2025-09-20 08:38:17 +0200
committerTakashi Iwai <tiwai@suse.de>2025-09-20 08:38:17 +0200
commitb8d8265a0db8b3e8a6b40e8a0b25da1c00599577 (patch)
tree1a7423c1b82a030434d06128a7b3b33875d6cfbb /include/linux/pgalloc.h
parentfc87f70bd133afd5b41fa8c128beb58c1ccc6e99 (diff)
parent5998f0d07d2c4bf3d8ecc4e6218e6a324aeb7301 (diff)
Merge tag 'asoc-v6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: Updates for v6.18 A relatively quiet release for ASoC, we've had a lot of maintainance work going on and several new drivers but really the most remarkable thing is that we removed a driver, the WL1273 driver used in some old Nokia systems that have had the underlying system support removed from the kernel. - Morimoto-san continues his work on cleanups of the core APIs and enforcement of abstraction layers. - Lots of cleanups and conversions of DT bindings. - Substantial maintainance work on the Intel AVS drivers. - Support for Qualcomm Glymur and PM4125, Realtek RT1321, Shanghai FourSemi FS2104/5S, Texas Instruments PCM1754. - Remove support for TI WL1273.
Diffstat (limited to 'include/linux/pgalloc.h')
-rw-r--r--include/linux/pgalloc.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/include/linux/pgalloc.h b/include/linux/pgalloc.h
new file mode 100644
index 000000000000..9174fa59bbc5
--- /dev/null
+++ b/include/linux/pgalloc.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_PGALLOC_H
+#define _LINUX_PGALLOC_H
+
+#include <linux/pgtable.h>
+#include <asm/pgalloc.h>
+
+/*
+ * {pgd,p4d}_populate_kernel() are defined as macros to allow
+ * compile-time optimization based on the configured page table levels.
+ * Without this, linking may fail because callers (e.g., KASAN) may rely
+ * on calls to these functions being optimized away when passing symbols
+ * that exist only for certain page table levels.
+ */
+#define pgd_populate_kernel(addr, pgd, p4d) \
+ do { \
+ pgd_populate(&init_mm, pgd, p4d); \
+ if (ARCH_PAGE_TABLE_SYNC_MASK & PGTBL_PGD_MODIFIED) \
+ arch_sync_kernel_mappings(addr, addr); \
+ } while (0)
+
+#define p4d_populate_kernel(addr, p4d, pud) \
+ do { \
+ p4d_populate(&init_mm, p4d, pud); \
+ if (ARCH_PAGE_TABLE_SYNC_MASK & PGTBL_P4D_MODIFIED) \
+ arch_sync_kernel_mappings(addr, addr); \
+ } while (0)
+
+#endif /* _LINUX_PGALLOC_H */