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authorSteven Price2020-02-03 17:35:24 -0800
committerLinus Torvalds2020-02-04 03:05:24 +0000
commit070434b13b6ef3d41fa5ebe25d73aa31b359b0c4 (patch)
treed6eaaaf970bbeb22a290fef3a0830178fc51bc13
parent501b81046701408a23bb11f75f1fb4e8521c64a6 (diff)
powerpc: mm: add p?d_leaf() definitions
walk_page_range() is going to be allowed to walk page tables other than those of user space. For this it needs to know when it has reached a 'leaf' entry in the page tables. This information is provided by the p?d_leaf() functions/macros. For powerpc p?d_is_leaf() functions already exist. Export them using the new p?d_leaf() name. Link: http://lkml.kernel.org/r/20191218162402.45610-7-steven.price@arm.com Signed-off-by: Steven Price <steven.price@arm.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andy Lutomirski <luto@kernel.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Hogan <jhogan@kernel.org> Cc: James Morse <james.morse@arm.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: "Liang, Kan" <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Paul Burton <paul.burton@mips.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Will Deacon <will@kernel.org> Cc: Zong Li <zong.li@sifive.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/powerpc/include/asm/book3s/64/pgtable.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index b01624e5c467..201a69e6a355 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -1355,18 +1355,21 @@ static inline bool is_pte_rw_upgrade(unsigned long old_val, unsigned long new_va
* Like pmd_huge() and pmd_large(), but works regardless of config options
*/
#define pmd_is_leaf pmd_is_leaf
+#define pmd_leaf pmd_is_leaf
static inline bool pmd_is_leaf(pmd_t pmd)
{
return !!(pmd_raw(pmd) & cpu_to_be64(_PAGE_PTE));
}
#define pud_is_leaf pud_is_leaf
+#define pud_leaf pud_is_leaf
static inline bool pud_is_leaf(pud_t pud)
{
return !!(pud_raw(pud) & cpu_to_be64(_PAGE_PTE));
}
#define pgd_is_leaf pgd_is_leaf
+#define pgd_leaf pgd_is_leaf
static inline bool pgd_is_leaf(pgd_t pgd)
{
return !!(pgd_raw(pgd) & cpu_to_be64(_PAGE_PTE));