From: Zhenyu Ye <yezhenyu2@huawei.com>
To: <peterz@infradead.org>, <mark.rutland@arm.com>, <will@kernel.org>,
<catalin.marinas@arm.com>, <aneesh.kumar@linux.ibm.com>,
<akpm@linux-foundation.org>, <npiggin@gmail.com>, <arnd@arndb.de>,
<rostedt@goodmis.org>, <maz@kernel.org>, <suzuki.poulose@arm.com>,
<tglx@linutronix.de>, <yuzhao@google.com>, <Dave.Martin@arm.com>,
<steven.price@arm.com>, <broonie@kernel.org>,
<guohanjun@huawei.com>, <corbet@lwn.net>, <vgupta@synopsys.com>,
<tony.luck@intel.com>
Cc: <yezhenyu2@huawei.com>, <linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <linux-arch@vger.kernel.org>,
<linux-mm@kvack.org>, <arm@kernel.org>, <xiexiangyou@huawei.com>,
<prime.zeng@hisilicon.com>, <zhangshaokun@hisilicon.com>,
<kuhn.chenqun@huawei.com>
Subject: [RFC PATCH v5 5/8] mm: tlb: Pass struct mmu_gather to flush_pud_tlb_range
Date: Tue, 31 Mar 2020 22:29:24 +0800 [thread overview]
Message-ID: <20200331142927.1237-6-yezhenyu2@huawei.com> (raw)
In-Reply-To: <20200331142927.1237-1-yezhenyu2@huawei.com>
Preparations to support for passing struct mmu_gather to
flush_tlb_range. See in future patches.
Signed-off-by: Zhenyu Ye <yezhenyu2@huawei.com>
---
include/asm-generic/pgtable.h | 4 ++--
mm/pgtable-generic.c | 8 +++++++-
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 32d4661e5a56..1c67a744877e 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -1161,10 +1161,10 @@ static inline int pmd_free_pte_page(pmd_t *pmd, unsigned long addr)
* e.g. see arch/arc: flush_pmd_tlb_range
*/
#define flush_pmd_tlb_range(tlb, vma, addr, end) flush_tlb_range(vma, addr, end)
-#define flush_pud_tlb_range(vma, addr, end) flush_tlb_range(vma, addr, end)
+#define flush_pud_tlb_range(tlb, vma, addr, end) flush_tlb_range(vma, addr, end)
#else
#define flush_pmd_tlb_range(tlb, vma, addr, end) BUILD_BUG()
-#define flush_pud_tlb_range(vma, addr, end) BUILD_BUG()
+#define flush_pud_tlb_range(tlb, vma, addr, end) BUILD_BUG()
#endif
#endif
diff --git a/mm/pgtable-generic.c b/mm/pgtable-generic.c
index 96c9cf77bfb5..9ab9d8f698ea 100644
--- a/mm/pgtable-generic.c
+++ b/mm/pgtable-generic.c
@@ -166,11 +166,17 @@ pud_t pudp_huge_clear_flush(struct vm_area_struct *vma, unsigned long address,
pud_t *pudp)
{
pud_t pud;
+ struct mmu_gather tlb;
+ unsigned long tlb_start = address;
+ unsigned long tlb_end = address + HPAGE_PUD_SIZE;
VM_BUG_ON(address & ~HPAGE_PUD_MASK);
VM_BUG_ON(!pud_trans_huge(*pudp) && !pud_devmap(*pudp));
pud = pudp_huge_get_and_clear(vma->vm_mm, address, pudp);
- flush_pud_tlb_range(vma, address, address + HPAGE_PUD_SIZE);
+ tlb_gather_mmu(&tlb, vma->vm_mm, tlb_start, tlb_end);
+ tlb.cleared_puds = 1;
+ flush_pud_tlb_range(&tlb, vma, tlb_start, tlb_end);
+ tlb_finish_mmu(&tlb, tlb_start, tlb_end);
return pud;
}
#endif
--
2.19.1
next prev parent reply other threads:[~2020-03-31 14:30 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-31 14:29 [RFC PATCH v5 0/8] arm64: tlb: add support for TTL feature Zhenyu Ye
2020-03-31 14:29 ` [RFC PATCH v5 1/8] arm64: Detect the ARMv8.4 " Zhenyu Ye
2020-03-31 14:29 ` [RFC PATCH v5 2/8] arm64: Add level-hinted TLB invalidation helper Zhenyu Ye
2020-03-31 14:29 ` [RFC PATCH v5 3/8] arm64: Add tlbi_user_level " Zhenyu Ye
2020-03-31 14:29 ` [RFC PATCH v5 4/8] mm: tlb: Pass struct mmu_gather to flush_pmd_tlb_range Zhenyu Ye
2020-03-31 15:13 ` Peter Zijlstra
2020-04-01 8:51 ` Zhenyu Ye
2020-04-01 12:20 ` Peter Zijlstra
2020-04-02 11:24 ` Zhenyu Ye
2020-04-02 16:38 ` Peter Zijlstra
2020-04-03 5:14 ` Zhenyu Ye
2020-04-08 9:00 ` Zhenyu Ye
2020-03-31 14:29 ` Zhenyu Ye [this message]
2020-03-31 14:29 ` [RFC PATCH v5 6/8] mm: tlb: Pass struct mmu_gather to flush_hugetlb_tlb_range Zhenyu Ye
2020-03-31 14:29 ` [RFC PATCH v5 7/8] mm: tlb: Pass struct mmu_gather to flush_tlb_range Zhenyu Ye
2020-03-31 14:29 ` [RFC PATCH v5 8/8] arm64: tlb: Set the TTL field in flush_tlb_range Zhenyu Ye
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200331142927.1237-6-yezhenyu2@huawei.com \
--to=yezhenyu2@huawei.com \
--cc=Dave.Martin@arm.com \
--cc=akpm@linux-foundation.org \
--cc=aneesh.kumar@linux.ibm.com \
--cc=arm@kernel.org \
--cc=arnd@arndb.de \
--cc=broonie@kernel.org \
--cc=catalin.marinas@arm.com \
--cc=corbet@lwn.net \
--cc=guohanjun@huawei.com \
--cc=kuhn.chenqun@huawei.com \
--cc=linux-arch@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mark.rutland@arm.com \
--cc=maz@kernel.org \
--cc=npiggin@gmail.com \
--cc=peterz@infradead.org \
--cc=prime.zeng@hisilicon.com \
--cc=rostedt@goodmis.org \
--cc=steven.price@arm.com \
--cc=suzuki.poulose@arm.com \
--cc=tglx@linutronix.de \
--cc=tony.luck@intel.com \
--cc=vgupta@synopsys.com \
--cc=will@kernel.org \
--cc=xiexiangyou@huawei.com \
--cc=yuzhao@google.com \
--cc=zhangshaokun@hisilicon.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).