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That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) Content-Type: text/plain; charset="utf-8" From: Eric Auger Introduce the smmu_get_iotlb_key() helper and the SMMU_IOTLB_ASID() macro. Also move smmu_get_iotlb_key and smmu_iotlb_key_hash in the IOTLB related code section. Signed-off-by: Eric Auger Reviewed-by: Peter Maydell Message-id: 20200728150815.11446-4-eric.auger@redhat.com Signed-off-by: Peter Maydell --- hw/arm/smmu-internal.h | 1 + include/hw/arm/smmu-common.h | 1 + hw/arm/smmu-common.c | 66 ++++++++++++++++++++---------------- 3 files changed, 38 insertions(+), 30 deletions(-) diff --git a/hw/arm/smmu-internal.h b/hw/arm/smmu-internal.h index 7794d6d3947..3104f768cd2 100644 --- a/hw/arm/smmu-internal.h +++ b/hw/arm/smmu-internal.h @@ -96,4 +96,5 @@ uint64_t iova_level_offset(uint64_t iova, int inputsize, MAKE_64BIT_MASK(0, gsz - 3); } =20 +#define SMMU_IOTLB_ASID(key) ((key).asid) #endif diff --git a/include/hw/arm/smmu-common.h b/include/hw/arm/smmu-common.h index 1dceec5cb1f..5f9f3535d2a 100644 --- a/include/hw/arm/smmu-common.h +++ b/include/hw/arm/smmu-common.h @@ -155,6 +155,7 @@ IOMMUMemoryRegion *smmu_iommu_mr(SMMUState *s, uint32_t= sid); =20 IOMMUTLBEntry *smmu_iotlb_lookup(SMMUState *bs, SMMUTransCfg *cfg, hwaddr = iova); void smmu_iotlb_insert(SMMUState *bs, SMMUTransCfg *cfg, IOMMUTLBEntry *en= try); +SMMUIOTLBKey smmu_get_iotlb_key(uint16_t asid, uint64_t iova); void smmu_iotlb_inv_all(SMMUState *s); void smmu_iotlb_inv_asid(SMMUState *s, uint16_t asid); void smmu_iotlb_inv_iova(SMMUState *s, uint16_t asid, dma_addr_t iova); diff --git a/hw/arm/smmu-common.c b/hw/arm/smmu-common.c index f3aa581f807..7dc8541e8b4 100644 --- a/hw/arm/smmu-common.c +++ b/hw/arm/smmu-common.c @@ -32,10 +32,42 @@ =20 /* IOTLB Management */ =20 +static guint smmu_iotlb_key_hash(gconstpointer v) +{ + SMMUIOTLBKey *key =3D (SMMUIOTLBKey *)v; + uint32_t a, b, c; + + /* Jenkins hash */ + a =3D b =3D c =3D JHASH_INITVAL + sizeof(*key); + a +=3D key->asid; + b +=3D extract64(key->iova, 0, 32); + c +=3D extract64(key->iova, 32, 32); + + __jhash_mix(a, b, c); + __jhash_final(a, b, c); + + return c; +} + +static gboolean smmu_iotlb_key_equal(gconstpointer v1, gconstpointer v2) +{ + const SMMUIOTLBKey *k1 =3D v1; + const SMMUIOTLBKey *k2 =3D v2; + + return (k1->asid =3D=3D k2->asid) && (k1->iova =3D=3D k2->iova); +} + +SMMUIOTLBKey smmu_get_iotlb_key(uint16_t asid, uint64_t iova) +{ + SMMUIOTLBKey key =3D {.asid =3D asid, .iova =3D iova}; + + return key; +} + IOMMUTLBEntry *smmu_iotlb_lookup(SMMUState *bs, SMMUTransCfg *cfg, hwaddr iova) { - SMMUIOTLBKey key =3D {.asid =3D cfg->asid, .iova =3D iova}; + SMMUIOTLBKey key =3D smmu_get_iotlb_key(cfg->asid, iova); IOMMUTLBEntry *entry =3D g_hash_table_lookup(bs->iotlb, &key); =20 if (entry) { @@ -62,8 +94,7 @@ void smmu_iotlb_insert(SMMUState *bs, SMMUTransCfg *cfg, = IOMMUTLBEntry *entry) smmu_iotlb_inv_all(bs); } =20 - key->asid =3D cfg->asid; - key->iova =3D entry->iova; + *key =3D smmu_get_iotlb_key(cfg->asid, entry->iova); trace_smmu_iotlb_insert(cfg->asid, entry->iova); g_hash_table_insert(bs->iotlb, key, entry); } @@ -80,12 +111,12 @@ static gboolean smmu_hash_remove_by_asid(gpointer key,= gpointer value, uint16_t asid =3D *(uint16_t *)user_data; SMMUIOTLBKey *iotlb_key =3D (SMMUIOTLBKey *)key; =20 - return iotlb_key->asid =3D=3D asid; + return SMMU_IOTLB_ASID(*iotlb_key) =3D=3D asid; } =20 inline void smmu_iotlb_inv_iova(SMMUState *s, uint16_t asid, dma_addr_t io= va) { - SMMUIOTLBKey key =3D {.asid =3D asid, .iova =3D iova}; + SMMUIOTLBKey key =3D smmu_get_iotlb_key(asid, iova); =20 trace_smmu_iotlb_inv_iova(asid, iova); g_hash_table_remove(s->iotlb, &key); @@ -383,31 +414,6 @@ IOMMUMemoryRegion *smmu_iommu_mr(SMMUState *s, uint32_= t sid) return NULL; } =20 -static guint smmu_iotlb_key_hash(gconstpointer v) -{ - SMMUIOTLBKey *key =3D (SMMUIOTLBKey *)v; - uint32_t a, b, c; - - /* Jenkins hash */ - a =3D b =3D c =3D JHASH_INITVAL + sizeof(*key); - a +=3D key->asid; - b +=3D extract64(key->iova, 0, 32); - c +=3D extract64(key->iova, 32, 32); - - __jhash_mix(a, b, c); - __jhash_final(a, b, c); - - return c; -} - -static gboolean smmu_iotlb_key_equal(gconstpointer v1, gconstpointer v2) -{ - const SMMUIOTLBKey *k1 =3D v1; - const SMMUIOTLBKey *k2 =3D v2; - - return (k1->asid =3D=3D k2->asid) && (k1->iova =3D=3D k2->iova); -} - /* Unmap the whole notifier's range */ static void smmu_unmap_notifier_range(IOMMUNotifier *n) { --=20 2.20.1