loongarch: drop definition of PMD_ORDER

This is the order of the page table allocation, not the order of a PMD.
Since its always hardwired to 0, simply drop it.

Link: https://lkml.kernel.org/r/20220703141203.147893-11-rppt@kernel.org
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Guo Ren <guoren@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Xuerui Wang <kernel@xen0n.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/arch/loongarch/include/asm/pgalloc.h b/arch/loongarch/include/asm/pgalloc.h
index b0a57b25c131f02bb16b7be60af8772415107df2..93e785f4663973e8f687745e8115cc9fd844fabd 100644 (file)
--- a/arch/loongarch/include/asm/pgalloc.h
+++ b/arch/loongarch/include/asm/pgalloc.h
@@ -66,12 +66,12 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
        pmd_t *pmd;
        struct page *pg;
 
-       pg = alloc_pages(GFP_KERNEL_ACCOUNT, PMD_ORDER);
+       pg = alloc_page(GFP_KERNEL_ACCOUNT);
        if (!pg)
                return NULL;
 
        if (!pgtable_pmd_page_ctor(pg)) {
-               __free_pages(pg, PMD_ORDER);
+               __free_page(pg);
                return NULL;
        }
 

diff --git a/arch/loongarch/include/asm/pgtable.h b/arch/loongarch/include/asm/pgtable.h
index e0bbfc31fe7263006f7b9ac9bea1fc40ad86a8bc..f926537d2233d34ed4b1b7696e2c46adc3bd01fa 100644 (file)
--- a/arch/loongarch/include/asm/pgtable.h
+++ b/arch/loongarch/include/asm/pgtable.h
@@ -23,7 +23,6 @@
 
 #define PGD_ORDER              0
 #define PUD_ORDER              0
-#define PMD_ORDER              0
 
 #if CONFIG_PGTABLE_LEVELS == 2
 #define PGDIR_SHIFT    (PAGE_SHIFT + (PAGE_SHIFT - 3))
@@ -31,12 +30,12 @@
 #define PMD_SHIFT      (PAGE_SHIFT + (PAGE_SHIFT - 3))
 #define PMD_SIZE       (1UL << PMD_SHIFT)
 #define PMD_MASK       (~(PMD_SIZE-1))
-#define PGDIR_SHIFT    (PMD_SHIFT + (PAGE_SHIFT + PMD_ORDER - 3))
+#define PGDIR_SHIFT    (PMD_SHIFT + (PAGE_SHIFT - 3))
 #elif CONFIG_PGTABLE_LEVELS == 4
 #define PMD_SHIFT      (PAGE_SHIFT + (PAGE_SHIFT - 3))
 #define PMD_SIZE       (1UL << PMD_SHIFT)
 #define PMD_MASK       (~(PMD_SIZE-1))
-#define PUD_SHIFT      (PMD_SHIFT + (PAGE_SHIFT + PMD_ORDER - 3))
+#define PUD_SHIFT      (PMD_SHIFT + (PAGE_SHIFT - 3))
 #define PUD_SIZE       (1UL << PUD_SHIFT)
 #define PUD_MASK       (~(PUD_SIZE-1))
 #define PGDIR_SHIFT    (PUD_SHIFT + (PAGE_SHIFT + PUD_ORDER - 3))
@@ -52,7 +51,7 @@
 #define PTRS_PER_PUD   ((PAGE_SIZE << PUD_ORDER) >> 3)
 #endif
 #if CONFIG_PGTABLE_LEVELS > 2
-#define PTRS_PER_PMD   ((PAGE_SIZE << PMD_ORDER) >> 3)
+#define PTRS_PER_PMD   (PAGE_SIZE >> 3)
 #endif
 #define PTRS_PER_PTE   (PAGE_SIZE >> 3)
 

diff --git a/arch/loongarch/kernel/asm-offsets.c b/arch/loongarch/kernel/asm-offsets.c
index 1a1166a7e61cfea730642a9fd0b9acca76f8dde3..aa4ef42d759f22d02699588f178a86c9169a5b5f 100644 (file)
--- a/arch/loongarch/kernel/asm-offsets.c
+++ b/arch/loongarch/kernel/asm-offsets.c
@@ -191,9 +191,6 @@ void output_mm_defines(void)
        DEFINE(_PTE_T_LOG2, PTE_T_LOG2);
        BLANK();
        DEFINE(_PGD_ORDER, PGD_ORDER);
-#ifndef __PAGETABLE_PMD_FOLDED
-       DEFINE(_PMD_ORDER, PMD_ORDER);
-#endif
        BLANK();
        DEFINE(_PMD_SHIFT, PMD_SHIFT);
        DEFINE(_PGDIR_SHIFT, PGDIR_SHIFT);