From cf4ce59b3b70238352c7f1729f0f7223214828ad Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 20 Sep 2024 01:46:19 +0000
Subject: [PATCH] rtl88x2CE_WiFi_linux add concurrent mode
---
kernel/arch/powerpc/include/asm/pte-walk.h | 28 ++++++++++++++++++++++++++--
1 files changed, 26 insertions(+), 2 deletions(-)
diff --git a/kernel/arch/powerpc/include/asm/pte-walk.h b/kernel/arch/powerpc/include/asm/pte-walk.h
index 2d633e9..33fa5dd 100644
--- a/kernel/arch/powerpc/include/asm/pte-walk.h
+++ b/kernel/arch/powerpc/include/asm/pte-walk.h
@@ -10,8 +10,20 @@
static inline pte_t *find_linux_pte(pgd_t *pgdir, unsigned long ea,
bool *is_thp, unsigned *hshift)
{
+ pte_t *pte;
+
VM_WARN(!arch_irqs_disabled(), "%s called with irq enabled\n", __func__);
- return __find_linux_pte(pgdir, ea, is_thp, hshift);
+ pte = __find_linux_pte(pgdir, ea, is_thp, hshift);
+
+#if defined(CONFIG_DEBUG_VM) && \
+ !(defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE))
+ /*
+ * We should not find huge page if these configs are not enabled.
+ */
+ if (hshift)
+ WARN_ON(*hshift);
+#endif
+ return pte;
}
static inline pte_t *find_init_mm_pte(unsigned long ea, unsigned *hshift)
@@ -26,10 +38,22 @@
static inline pte_t *find_current_mm_pte(pgd_t *pgdir, unsigned long ea,
bool *is_thp, unsigned *hshift)
{
+ pte_t *pte;
+
VM_WARN(!arch_irqs_disabled(), "%s called with irq enabled\n", __func__);
VM_WARN(pgdir != current->mm->pgd,
"%s lock less page table lookup called on wrong mm\n", __func__);
- return __find_linux_pte(pgdir, ea, is_thp, hshift);
+ pte = __find_linux_pte(pgdir, ea, is_thp, hshift);
+
+#if defined(CONFIG_DEBUG_VM) && \
+ !(defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE))
+ /*
+ * We should not find huge page if these configs are not enabled.
+ */
+ if (hshift)
+ WARN_ON(*hshift);
+#endif
+ return pte;
}
#endif /* _ASM_POWERPC_PTE_WALK_H */
--
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