[PATCH 06/14] mips: Rename PGD_ORDER to PGD_TABLE_ORDER

Mike Rapoport
2022-07-03T14:13:21Z

From: Mike Rapoport <rppt@linux.ibm.com>

This is the order of the page table allocation, not the order of a PGD.

While at it remove unused defintion of _PGD_ORDER in asm-offsets.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
arch/mips/include/asm/pgalloc.h | 2 +-
arch/mips/include/asm/pgtable-32.h | 6 +++---
arch/mips/include/asm/pgtable-64.h | 16 ++++++++--------
arch/mips/kernel/asm-offsets.c | 1 -
arch/mips/kvm/mmu.c | 2 +-
arch/mips/mm/pgtable.c | 2 +-
arch/mips/mm/tlbex.c | 12 ++++++------
7 files changed, 20 insertions(+), 21 deletions(-)

diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h
index 1ef8e86ae565..796035784c73 100644
--- a/arch/mips/include/asm/pgalloc.h
+++ b/arch/mips/include/asm/pgalloc.h
@@ -51,7 +51,7 @@ extern pgd_t *pgd_alloc(struct mm_struct *mm);

static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
{
- free_pages((unsigned long)pgd, PGD_ORDER);
+ free_pages((unsigned long)pgd, PGD_TABLE_ORDER);
}

#define __pte_free_tlb(tlb,pte,address) \
diff --git a/arch/mips/include/asm/pgtable-32.h b/arch/mips/include/asm/pgtable-32.h
index 35bd519a1078..495c603c1a30 100644
--- a/arch/mips/include/asm/pgtable-32.h
+++ b/arch/mips/include/asm/pgtable-32.h
@@ -75,12 +75,12 @@ extern int add_temporary_entry(unsigned long entrylo0, unsigned long entrylo1,
* we don't really have any PUD/PMD directory physically.
*/
#if defined(CONFIG_MIPS_HUGE_TLB_SUPPORT) && !defined(CONFIG_PHYS_ADDR_T_64BIT)
-# define __PGD_ORDER (32 - 3 * PAGE_SHIFT + PGD_T_LOG2 + PTE_T_LOG2 + 1)
+# define __PGD_TABLE_ORDER (32 - 3 * PAGE_SHIFT + PGD_T_LOG2 + PTE_T_LOG2 + 1)
#else
-# define __PGD_ORDER (32 - 3 * PAGE_SHIFT + PGD_T_LOG2 + PTE_T_LOG2)
+# define __PGD_TABLE_ORDER (32 - 3 * PAGE_SHIFT + PGD_T_LOG2 + PTE_T_LOG2)
#endif

-#define PGD_ORDER (__PGD_ORDER >= 0 ? __PGD_ORDER : 0)
+#define PGD_TABLE_ORDER (__PGD_TABLE_ORDER >= 0 ? __PGD_TABLE_ORDER : 0)
#define PUD_TABLE_ORDER aieeee_attempt_to_allocate_pud
#define PMD_TABLE_ORDER aieeee_attempt_to_allocate_pmd

diff --git a/arch/mips/include/asm/pgtable-64.h b/arch/mips/include/asm/pgtable-64.h
index dbf7e461d360..a259ca4d1272 100644
--- a/arch/mips/include/asm/pgtable-64.h
+++ b/arch/mips/include/asm/pgtable-64.h
@@ -85,35 +85,35 @@
*/
#ifdef CONFIG_PAGE_SIZE_4KB
# ifdef CONFIG_MIPS_VA_BITS_48
-# define PGD_ORDER 0
+# define PGD_TABLE_ORDER 0
# define PUD_TABLE_ORDER 0
# else
-# define PGD_ORDER 1
+# define PGD_TABLE_ORDER 1
# define PUD_TABLE_ORDER aieeee_attempt_to_allocate_pud
# endif
#define PMD_TABLE_ORDER 0
#endif
#ifdef CONFIG_PAGE_SIZE_8KB
-#define PGD_ORDER 0
+#define PGD_TABLE_ORDER 0
#define PUD_TABLE_ORDER aieeee_attempt_to_allocate_pud
#define PMD_TABLE_ORDER 0
#endif
#ifdef CONFIG_PAGE_SIZE_16KB
#ifdef CONFIG_MIPS_VA_BITS_48
-#define PGD_ORDER 1
+#define PGD_TABLE_ORDER 1
#else
-#define PGD_ORDER 0
+#define PGD_TABLE_ORDER 0
#endif
#define PUD_TABLE_ORDER aieeee_attempt_to_allocate_pud
#define PMD_TABLE_ORDER 0
#endif
#ifdef CONFIG_PAGE_SIZE_32KB
-#define PGD_ORDER 0
+#define PGD_TABLE_ORDER 0
#define PUD_TABLE_ORDER aieeee_attempt_to_allocate_pud
#define PMD_TABLE_ORDER 0
#endif
#ifdef CONFIG_PAGE_SIZE_64KB
-#define PGD_ORDER 0
+#define PGD_TABLE_ORDER 0
#define PUD_TABLE_ORDER aieeee_attempt_to_allocate_pud
#ifdef CONFIG_MIPS_VA_BITS_48
#define PMD_TABLE_ORDER 0
@@ -122,7 +122,7 @@
#endif
#endif

-#define PTRS_PER_PGD ((PAGE_SIZE << PGD_ORDER) / sizeof(pgd_t))
+#define PTRS_PER_PGD ((PAGE_SIZE << PGD_TABLE_ORDER) / sizeof(pgd_t))
#ifndef __PAGETABLE_PUD_FOLDED
#define PTRS_PER_PUD ((PAGE_SIZE << PUD_TABLE_ORDER) / sizeof(pud_t))
#endif
diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c
index 0c97f755e256..c4501897b870 100644
--- a/arch/mips/kernel/asm-offsets.c
+++ b/arch/mips/kernel/asm-offsets.c
@@ -196,7 +196,6 @@ void output_mm_defines(void)
#endif
DEFINE(_PTE_T_LOG2, PTE_T_LOG2);
BLANK();
- DEFINE(_PGD_ORDER, PGD_ORDER);
BLANK();
DEFINE(_PMD_SHIFT, PMD_SHIFT);
DEFINE(_PGDIR_SHIFT, PGDIR_SHIFT);
diff --git a/arch/mips/kvm/mmu.c b/arch/mips/kvm/mmu.c
index 1bfd1b501d82..db17e870bdff 100644
--- a/arch/mips/kvm/mmu.c
+++ b/arch/mips/kvm/mmu.c
@@ -80,7 +80,7 @@ pgd_t *kvm_pgd_alloc(void)
{
pgd_t *ret;

- ret = (pgd_t *)__get_free_pages(GFP_KERNEL, PGD_ORDER);
+ ret = (pgd_t *)__get_free_pages(GFP_KERNEL, PGD_TABLE_ORDER);
if (ret)
kvm_pgd_init(ret);

diff --git a/arch/mips/mm/pgtable.c b/arch/mips/mm/pgtable.c
index 05560b042d82..3b7590660a04 100644
--- a/arch/mips/mm/pgtable.c
+++ b/arch/mips/mm/pgtable.c
@@ -12,7 +12,7 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
{
pgd_t *ret, *init;

- ret = (pgd_t *) __get_free_pages(GFP_KERNEL, PGD_ORDER);
+ ret = (pgd_t *) __get_free_pages(GFP_KERNEL, PGD_TABLE_ORDER);
if (ret) {
init = pgd_offset(&init_mm, 0UL);
pgd_init((unsigned long)ret);
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 6e8e71f12fab..a57519ae96b1 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -818,7 +818,7 @@ void build_get_pmde64(u32 **p, struct uasm_label **l, struct uasm_reloc **r,
* everything but the lower xuseg addresses goes down
* the module_alloc/vmalloc path.
*/
- uasm_i_dsrl_safe(p, ptr, tmp, PGDIR_SHIFT + PGD_ORDER + PAGE_SHIFT - 3);
+ uasm_i_dsrl_safe(p, ptr, tmp, PGDIR_SHIFT + PGD_TABLE_ORDER + PAGE_SHIFT - 3);
uasm_il_bnez(p, r, ptr, label_vmalloc);
} else {
uasm_il_bltz(p, r, tmp, label_vmalloc);
@@ -1127,7 +1127,7 @@ build_fast_tlb_refill_handler (u32 **p, struct uasm_label **l,
UASM_i_SW(p, scratch, scratchpad_offset(0), 0);

uasm_i_dsrl_safe(p, scratch, tmp,
- PGDIR_SHIFT + PGD_ORDER + PAGE_SHIFT - 3);
+ PGDIR_SHIFT + PGD_TABLE_ORDER + PAGE_SHIFT - 3);
uasm_il_bnez(p, r, scratch, label_vmalloc);

if (pgd_reg == -1) {
@@ -1493,12 +1493,12 @@ static void setup_pw(void)
#endif
pgd_i = PGDIR_SHIFT; /* 1st level PGD */
#ifndef __PAGETABLE_PMD_FOLDED
- pgd_w = PGDIR_SHIFT - PMD_SHIFT + PGD_ORDER;
+ pgd_w = PGDIR_SHIFT - PMD_SHIFT + PGD_TABLE_ORDER;

pmd_i = PMD_SHIFT; /* 2nd level PMD */
pmd_w = PMD_SHIFT - PAGE_SHIFT;
#else
- pgd_w = PGDIR_SHIFT - PAGE_SHIFT + PGD_ORDER;
+ pgd_w = PGDIR_SHIFT - PAGE_SHIFT + PGD_TABLE_ORDER;
#endif

pt_i = PAGE_SHIFT; /* 3rd level PTE */
@@ -1536,7 +1536,7 @@ static void build_loongson3_tlb_refill_handler(void)

if (check_for_high_segbits) {
uasm_i_dmfc0(&p, K0, C0_BADVADDR);
- uasm_i_dsrl_safe(&p, K1, K0, PGDIR_SHIFT + PGD_ORDER + PAGE_SHIFT - 3);
+ uasm_i_dsrl_safe(&p, K1, K0, PGDIR_SHIFT + PGD_TABLE_ORDER + PAGE_SHIFT - 3);
uasm_il_beqz(&p, &r, K1, label_vmalloc);
uasm_i_nop(&p);

@@ -2611,7 +2611,7 @@ void build_tlb_refill_handler(void)
check_pabits();

#ifdef CONFIG_64BIT
- check_for_high_segbits = current_cpu_data.vmbits > (PGDIR_SHIFT + PGD_ORDER + PAGE_SHIFT - 3);
+ check_for_high_segbits = current_cpu_data.vmbits > (PGDIR_SHIFT + PGD_TABLE_ORDER + PAGE_SHIFT - 3);
#endif

if (cpu_has_3kex) {
--
2.34.1