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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /arch/riscv/mm/hugetlbpage.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--arch/riscv/mm/hugetlbpage.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/riscv/mm/hugetlbpage.c b/arch/riscv/mm/hugetlbpage.c
new file mode 100644
index 000000000..932dadfdc
--- /dev/null
+++ b/arch/riscv/mm/hugetlbpage.c
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/hugetlb.h>
+#include <linux/err.h>
+
+int pud_huge(pud_t pud)
+{
+ return pud_leaf(pud);
+}
+
+int pmd_huge(pmd_t pmd)
+{
+ return pmd_leaf(pmd);
+}
+
+bool __init arch_hugetlb_valid_size(unsigned long size)
+{
+ if (size == HPAGE_SIZE)
+ return true;
+ else if (IS_ENABLED(CONFIG_64BIT) && size == PUD_SIZE)
+ return true;
+ else
+ return false;
+}
+
+#ifdef CONFIG_CONTIG_ALLOC
+static __init int gigantic_pages_init(void)
+{
+ /* With CONTIG_ALLOC, we can allocate gigantic pages at runtime */
+ if (IS_ENABLED(CONFIG_64BIT))
+ hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT);
+ return 0;
+}
+arch_initcall(gigantic_pages_init);
+#endif