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From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au
Cc: linuxppc-dev@lists.ozlabs.org,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Subject: [PATCH V5 03/17] powerpc/mm: Move copy_mm_to_paca to paca.c
Date: Wed, 22 Mar 2017 09:06:49 +0530	[thread overview]
Message-ID: <1490153823-29241-4-git-send-email-aneesh.kumar@linux.vnet.ibm.com> (raw)
In-Reply-To: <1490153823-29241-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com>

We also update the function arg to struct mm_struct. Move this so that function
finds the definition of struct mm_struct. No functional change in this patch.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
 arch/powerpc/include/asm/paca.h | 18 +-----------------
 arch/powerpc/kernel/paca.c      | 19 +++++++++++++++++++
 arch/powerpc/mm/hash_utils_64.c |  4 ++--
 arch/powerpc/mm/slb.c           |  2 +-
 arch/powerpc/mm/slice.c         |  2 +-
 5 files changed, 24 insertions(+), 21 deletions(-)

diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
index 708c3e592eeb..f48c250339fd 100644
--- a/arch/powerpc/include/asm/paca.h
+++ b/arch/powerpc/include/asm/paca.h
@@ -206,23 +206,7 @@ struct paca_struct {
 #endif
 };
 
-#ifdef CONFIG_PPC_BOOK3S
-static inline void copy_mm_to_paca(mm_context_t *context)
-{
-	get_paca()->mm_ctx_id = context->id;
-#ifdef CONFIG_PPC_MM_SLICES
-	get_paca()->mm_ctx_low_slices_psize = context->low_slices_psize;
-	memcpy(&get_paca()->mm_ctx_high_slices_psize,
-	       &context->high_slices_psize, SLICE_ARRAY_SIZE);
-#else
-	get_paca()->mm_ctx_user_psize = context->user_psize;
-	get_paca()->mm_ctx_sllp = context->sllp;
-#endif
-}
-#else
-static inline void copy_mm_to_paca(mm_context_t *context){}
-#endif
-
+extern void copy_mm_to_paca(struct mm_struct *mm);
 extern struct paca_struct *paca;
 extern void initialise_paca(struct paca_struct *new_paca, int cpu);
 extern void setup_paca(struct paca_struct *new_paca);
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index dfc479df9634..e2cf745a4b94 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -245,3 +245,22 @@ void __init free_unused_pacas(void)
 
 	free_lppacas();
 }
+
+void copy_mm_to_paca(struct mm_struct *mm)
+{
+#ifdef CONFIG_PPC_BOOK3S
+	mm_context_t *context = &mm->context;
+
+	get_paca()->mm_ctx_id = context->id;
+#ifdef CONFIG_PPC_MM_SLICES
+	get_paca()->mm_ctx_low_slices_psize = context->low_slices_psize;
+	memcpy(&get_paca()->mm_ctx_high_slices_psize,
+	       &context->high_slices_psize, SLICE_ARRAY_SIZE);
+#else /* CONFIG_PPC_MM_SLICES */
+	get_paca()->mm_ctx_user_psize = context->user_psize;
+	get_paca()->mm_ctx_sllp = context->sllp;
+#endif
+#else /* CONFIG_PPC_BOOK3S */
+	return;
+#endif
+}
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index c554768b1fa2..1bbf572243f7 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -1120,7 +1120,7 @@ void demote_segment_4k(struct mm_struct *mm, unsigned long addr)
 	copro_flush_all_slbs(mm);
 	if ((get_paca_psize(addr) != MMU_PAGE_4K) && (current->mm == mm)) {
 
-		copy_mm_to_paca(&mm->context);
+		copy_mm_to_paca(mm);
 		slb_flush_and_rebolt();
 	}
 }
@@ -1192,7 +1192,7 @@ static void check_paca_psize(unsigned long ea, struct mm_struct *mm,
 {
 	if (user_region) {
 		if (psize != get_paca_psize(ea)) {
-			copy_mm_to_paca(&mm->context);
+			copy_mm_to_paca(mm);
 			slb_flush_and_rebolt();
 		}
 	} else if (get_paca()->vmalloc_sllp !=
diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c
index 5e01b2ece1d0..98ae810b8c21 100644
--- a/arch/powerpc/mm/slb.c
+++ b/arch/powerpc/mm/slb.c
@@ -229,7 +229,7 @@ void switch_slb(struct task_struct *tsk, struct mm_struct *mm)
 		asm volatile("slbie %0" : : "r" (slbie_data));
 
 	get_paca()->slb_cache_ptr = 0;
-	copy_mm_to_paca(&mm->context);
+	copy_mm_to_paca(mm);
 
 	/*
 	 * preload some userspace segments into the SLB.
diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
index 2396db6b3a05..b40b4111ca13 100644
--- a/arch/powerpc/mm/slice.c
+++ b/arch/powerpc/mm/slice.c
@@ -192,7 +192,7 @@ static void slice_flush_segments(void *parm)
 	if (mm != current->active_mm)
 		return;
 
-	copy_mm_to_paca(&current->active_mm->context);
+	copy_mm_to_paca(current->active_mm);
 
 	local_irq_save(flags);
 	slb_flush_and_rebolt();
-- 
2.7.4

  parent reply	other threads:[~2017-03-22  3:37 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-22  3:36 [PATCH V5 00/17] powerpc/mm/ppc64: Add 128TB support Aneesh Kumar K.V
2017-03-22  3:36 ` [PATCH V5 01/17] powerpc/mm/slice: Convert slice_mask high slice to a bitmap Aneesh Kumar K.V
2017-03-29  3:11   ` Paul Mackerras
2017-03-29  5:20     ` Aneesh Kumar K.V
2017-03-22  3:36 ` [PATCH V5 02/17] powerpc/mm/slice: Update the function prototype Aneesh Kumar K.V
2017-03-29  3:43   ` Paul Mackerras
2017-03-29 10:48     ` Aneesh Kumar K.V
2017-03-22  3:36 ` Aneesh Kumar K.V [this message]
2017-03-22  3:36 ` [PATCH V5 04/17] powerpc/mm: Remove redundant TASK_SIZE_USER64 checks Aneesh Kumar K.V
2017-03-29  3:34   ` Michael Ellerman
2017-03-22  3:36 ` [PATCH V5 05/17] powerpc/mm/slice: Move slice_mask struct definition to slice.c Aneesh Kumar K.V
2017-03-22  3:36 ` [PATCH V5 06/17] powerpc/mm/slice: Update slice mask printing to use bitmap printing Aneesh Kumar K.V
2017-03-22  3:36 ` [PATCH V5 07/17] powerpc/mm/hash: Move kernel context to the starting of context range Aneesh Kumar K.V
2017-03-22  3:36 ` [PATCH V5 08/17] powerpc/mm/hash: Support 68 bit VA Aneesh Kumar K.V
2017-03-22  3:36 ` [PATCH V5 09/17] powerpc/mm/hash: VSID 0 is no more an invalid VSID Aneesh Kumar K.V
2017-03-22  3:36 ` [PATCH V5 10/17] powerpc/mm/hash: Convert mask to unsigned long Aneesh Kumar K.V
2017-03-22  3:36 ` [PATCH V5 11/17] powerpc/mm/hash: Increase VA range to 128TB Aneesh Kumar K.V
2017-03-22  3:36 ` [PATCH V5 12/17] powerpc/mm/slice: Use mm task_size as max value of slice index Aneesh Kumar K.V
2017-03-22  3:36 ` [PATCH V5 13/17] powerpc/mm/hash: Store task size in PACA Aneesh Kumar K.V
2017-03-22  3:37 ` [PATCH V5 14/17] powerpc/mm/hash: Skip using reserved virtual address range Aneesh Kumar K.V
2017-03-22  3:37 ` [PATCH V5 15/17] powerpc/mm: Switch TASK_SIZE check to use mm->task_size Aneesh Kumar K.V
2017-03-22  3:37 ` [PATCH V5 16/17] mm: Let arch choose the initial value of task size Aneesh Kumar K.V
2017-03-28 11:17   ` Michael Ellerman
2017-03-28 15:22     ` Aneesh Kumar K.V
2017-03-29  9:20   ` Anshuman Khandual
2017-03-30  3:03   ` Anshuman Khandual
2017-03-22  3:37 ` [PATCH V5 17/17] powerpc/mm: Enable mappings above 128TB Aneesh Kumar K.V

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