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 14/16] powerpc/mm/pseries: Use HASH_REMOVE hcall in guest
Date: Fri, 27 Oct 2017 09:38:31 +0530 [thread overview]
Message-ID: <20171027040833.3644-15-aneesh.kumar@linux.vnet.ibm.com> (raw)
In-Reply-To: <20171027040833.3644-1-aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
arch/powerpc/platforms/pseries/lpar.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index cd5cf5bd53f1..41512aaa8c8e 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -454,6 +454,27 @@ static void pSeries_lpar_hpte_invalidate(unsigned long slot, unsigned long vpn,
BUG_ON(lpar_rc != H_SUCCESS);
}
+static void __pseries_lpar_hash_invalidate(unsigned long hash, unsigned long vpn,
+ int psize, int apsize,
+ int ssize, int local)
+{
+ unsigned long want_v;
+ unsigned long lpar_rc;
+ unsigned long dummy1, dummy2;
+
+ pr_devel(" inval : hash=%lx, vpn=%016lx, psize: %d, local: %d\n",
+ hash, vpn, psize, local);
+
+ want_v = hpte_encode_avpn(vpn, psize, ssize);
+ lpar_rc = plpar_pte_hash_remove(H_AVPN, hash, want_v, &dummy1, &dummy2);
+ if (lpar_rc == H_NOT_FOUND)
+ return;
+
+ BUG_ON(lpar_rc != H_SUCCESS);
+
+}
+
+
static void pSeries_lpar_hash_invalidate(unsigned long hash, unsigned long vpn,
int psize, int apsize,
int ssize, int local)
@@ -466,6 +487,9 @@ static void pSeries_lpar_hash_invalidate(unsigned long hash, unsigned long vpn,
pr_devel(" inval : hash=%lx, vpn=%016lx, psize: %d, local: %d\n",
hash, vpn, psize, local);
+ if (firmware_has_feature(FW_FEATURE_HASH_API))
+ return __pseries_lpar_hash_invalidate(hash, vpn, psize,
+ apsize, ssize, local);
want_v = hpte_encode_avpn(vpn, psize, ssize);
slot = __pSeries_lpar_hpte_find(hash, want_v);
if (slot < 0)
--
2.13.6
next prev parent reply other threads:[~2017-10-27 4:10 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-27 4:08 [PATCH 00/16] Remove hash page table slot tracking from linux PTE Aneesh Kumar K.V
2017-10-27 4:08 ` [PATCH 01/16] powerpc/mm/hash: Remove the superfluous bitwise operation when find hpte group Aneesh Kumar K.V
2017-10-27 4:08 ` [PATCH 02/16] powerpc/mm: Update native_hpte_find to return hash pte Aneesh Kumar K.V
2017-10-27 4:08 ` [PATCH 03/16] powerpc/pseries: Update hpte find helper to take hash value Aneesh Kumar K.V
2017-10-27 4:08 ` [PATCH 04/16] powerpc/mm: Add hash invalidate callback Aneesh Kumar K.V
2017-10-27 4:08 ` [PATCH 05/16] powerpc/mm: use hash_invalidate for __kernel_map_pages() Aneesh Kumar K.V
2017-10-27 4:08 ` [PATCH 06/16] powerpc/mm: Switch flush_hash_range to not use slot Aneesh Kumar K.V
2017-10-27 4:08 ` [PATCH 07/16] powerpc/mm: Add hash updatepp callback Aneesh Kumar K.V
2017-10-27 4:08 ` [PATCH 08/16] powerpc/mm/hash: Don't track hash pte slot number in linux page table Aneesh Kumar K.V
2017-10-27 4:08 ` [PATCH 09/16] powerpc/mm: Add new firmware feature HASH API Aneesh Kumar K.V
2017-10-27 4:08 ` [PATCH 10/16] powerpc/kvm/hash: Implement HASH_REMOVE hcall Aneesh Kumar K.V
2017-10-27 4:08 ` [PATCH 11/16] powerpc/kvm/hash: Implement HASH_PROTECT hcall Aneesh Kumar K.V
2017-10-27 4:08 ` [PATCH 12/16] powerpc/kvm/hash: Implement HASH_BULK_REMOVE hcall Aneesh Kumar K.V
2017-10-27 4:08 ` [PATCH 13/16] powerpc/mm/pseries: Use HASH_PROTECT hcall in guest Aneesh Kumar K.V
2017-10-27 4:08 ` Aneesh Kumar K.V [this message]
2017-10-27 4:08 ` [PATCH 15/16] powerpc/mm/pseries: Move slot based bulk remove to helper Aneesh Kumar K.V
2017-10-27 4:08 ` [PATCH 16/16] powerpc/mm/pseries: Use HASH_BULK_REMOVE hcall in guest Aneesh Kumar K.V
2017-10-27 4:34 ` [PATCH 00/16] Remove hash page table slot tracking from linux PTE Paul Mackerras
2017-10-27 5:27 ` Aneesh Kumar K.V
2017-10-27 5:41 ` Paul Mackerras
2017-10-30 7:57 ` Aneesh Kumar K.V
2017-10-30 11:49 ` Aneesh Kumar K.V
2017-10-30 13:14 ` Aneesh Kumar K.V
2017-10-30 13:49 ` Aneesh Kumar K.V
2017-11-21 8:41 ` Aneesh Kumar K.V
2017-10-28 22:35 ` Ram Pai
2017-10-29 14:05 ` Aneesh Kumar K.V
2017-10-29 22:04 ` Paul Mackerras
2017-10-30 0:51 ` Ram Pai
2017-11-01 4:46 ` Michael Ellerman
2017-11-01 11:02 ` Paul Mackerras
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