[PATCH v3] hw/arm/smmu: Introduce smmu_configs_inv_sid_range() helper

JianChunfu posted 1 patch 1 month ago
hw/arm/smmu-common.c         | 21 +++++++++++++++++++++
hw/arm/smmu-internal.h       |  5 -----
hw/arm/smmuv3.c              | 19 ++-----------------
hw/arm/trace-events          |  3 ++-
include/hw/arm/smmu-common.h |  6 ++++++
5 files changed, 31 insertions(+), 23 deletions(-)
[PATCH v3] hw/arm/smmu: Introduce smmu_configs_inv_sid_range() helper
Posted by JianChunfu 1 month ago
Use a similar terminology smmu_hash_remove_by_sid_range() as the one
being used for other hash table matching functions since
smmuv3_invalidate_ste() name is not self explanatory, and introduce a
helper that invokes the g_hash_table_foreach_remove.

No functional change intended.

Signed-off-by: JianChunfu <jansef.jian@hj-micro.com>
---
v3: - Modify the commit msg
    - Rename the trace funtion
v2: - move smmuv3_invalidate_ste() to smmu_hash_remove_by_sid_range()
    - add function smmu_configs_inv_sid_range()
v1: - Rename smmuv3_invalidate_ste to smmuv3_hash_remove_by_sid_range
---
 hw/arm/smmu-common.c         | 21 +++++++++++++++++++++
 hw/arm/smmu-internal.h       |  5 -----
 hw/arm/smmuv3.c              | 19 ++-----------------
 hw/arm/trace-events          |  3 ++-
 include/hw/arm/smmu-common.h |  6 ++++++
 5 files changed, 31 insertions(+), 23 deletions(-)

diff --git a/hw/arm/smmu-common.c b/hw/arm/smmu-common.c
index 3f8272875..bad3b3b0b 100644
--- a/hw/arm/smmu-common.c
+++ b/hw/arm/smmu-common.c
@@ -225,6 +225,27 @@ static gboolean smmu_hash_remove_by_vmid_ipa(gpointer key, gpointer value,
            ((entry->iova & ~info->mask) == info->iova);
 }
 
+static gboolean
+smmu_hash_remove_by_sid_range(gpointer key, gpointer value, gpointer user_data)
+{
+    SMMUDevice *sdev = (SMMUDevice *)key;
+    uint32_t sid = smmu_get_sid(sdev);
+    SMMUSIDRange *sid_range = (SMMUSIDRange *)user_data;
+
+    if (sid < sid_range->start || sid > sid_range->end) {
+        return false;
+    }
+    trace_smmu_config_cache_inv(sid);
+    return true;
+}
+
+void smmu_configs_inv_sid_range(SMMUState *s, SMMUSIDRange sid_range)
+{
+    trace_smmu_configs_inv_sid_range(sid_range.start, sid_range.end);
+    g_hash_table_foreach_remove(s->configs, smmu_hash_remove_by_sid_range,
+                                &sid_range);
+}
+
 void smmu_iotlb_inv_iova(SMMUState *s, int asid, int vmid, dma_addr_t iova,
                          uint8_t tg, uint64_t num_pages, uint8_t ttl)
 {
diff --git a/hw/arm/smmu-internal.h b/hw/arm/smmu-internal.h
index 843bebb18..d143d296f 100644
--- a/hw/arm/smmu-internal.h
+++ b/hw/arm/smmu-internal.h
@@ -141,9 +141,4 @@ typedef struct SMMUIOTLBPageInvInfo {
     uint64_t mask;
 } SMMUIOTLBPageInvInfo;
 
-typedef struct SMMUSIDRange {
-    uint32_t start;
-    uint32_t end;
-} SMMUSIDRange;
-
 #endif
diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
index 4c49b5a88..1c55bc56d 100644
--- a/hw/arm/smmuv3.c
+++ b/hw/arm/smmuv3.c
@@ -903,7 +903,7 @@ static void smmuv3_flush_config(SMMUDevice *sdev)
     SMMUv3State *s = sdev->smmu;
     SMMUState *bc = &s->smmu_state;
 
-    trace_smmuv3_config_cache_inv(smmu_get_sid(sdev));
+    trace_smmu_config_cache_inv(smmu_get_sid(sdev));
     g_hash_table_remove(bc->configs, sdev);
 }
 
@@ -1277,20 +1277,6 @@ static void smmuv3_range_inval(SMMUState *s, Cmd *cmd, SMMUStage stage)
     }
 }
 
-static gboolean
-smmuv3_invalidate_ste(gpointer key, gpointer value, gpointer user_data)
-{
-    SMMUDevice *sdev = (SMMUDevice *)key;
-    uint32_t sid = smmu_get_sid(sdev);
-    SMMUSIDRange *sid_range = (SMMUSIDRange *)user_data;
-
-    if (sid < sid_range->start || sid > sid_range->end) {
-        return false;
-    }
-    trace_smmuv3_config_cache_inv(sid);
-    return true;
-}
-
 static int smmuv3_cmdq_consume(SMMUv3State *s)
 {
     SMMUState *bs = ARM_SMMU(s);
@@ -1373,8 +1359,7 @@ static int smmuv3_cmdq_consume(SMMUv3State *s)
             sid_range.end = sid_range.start + mask;
 
             trace_smmuv3_cmdq_cfgi_ste_range(sid_range.start, sid_range.end);
-            g_hash_table_foreach_remove(bs->configs, smmuv3_invalidate_ste,
-                                        &sid_range);
+            smmu_configs_inv_sid_range(bs, sid_range);
             break;
         }
         case SMMU_CMD_CFGI_CD:
diff --git a/hw/arm/trace-events b/hw/arm/trace-events
index c64ad344b..e96f9ae47 100644
--- a/hw/arm/trace-events
+++ b/hw/arm/trace-events
@@ -15,6 +15,8 @@ smmu_iotlb_inv_asid_vmid(int asid, int vmid) "IOTLB invalidate asid=%d vmid=%d"
 smmu_iotlb_inv_vmid(int vmid) "IOTLB invalidate vmid=%d"
 smmu_iotlb_inv_vmid_s1(int vmid) "IOTLB invalidate vmid=%d"
 smmu_iotlb_inv_iova(int asid, uint64_t addr) "IOTLB invalidate asid=%d addr=0x%"PRIx64
+smmu_configs_inv_sid_range(uint32_t start, uint32_t end) "Config cache INV SID range from 0x%x to 0x%x"
+smmu_config_cache_inv(uint32_t sid) "Config cache INV for sid=0x%x"
 smmu_inv_notifiers_mr(const char *name) "iommu mr=%s"
 smmu_iotlb_lookup_hit(int asid, int vmid, uint64_t addr, uint32_t hit, uint32_t miss, uint32_t p) "IOTLB cache HIT asid=%d vmid=%d addr=0x%"PRIx64" hit=%d miss=%d hit rate=%d"
 smmu_iotlb_lookup_miss(int asid, int vmid, uint64_t addr, uint32_t hit, uint32_t miss, uint32_t p) "IOTLB cache MISS asid=%d vmid=%d addr=0x%"PRIx64" hit=%d miss=%d hit rate=%d"
@@ -52,7 +54,6 @@ smmuv3_cmdq_tlbi_nh(int vmid) "vmid=%d"
 smmuv3_cmdq_tlbi_nsnh(void) ""
 smmuv3_cmdq_tlbi_nh_asid(int asid) "asid=%d"
 smmuv3_cmdq_tlbi_s12_vmid(int vmid) "vmid=%d"
-smmuv3_config_cache_inv(uint32_t sid) "Config cache INV for sid=0x%x"
 smmuv3_notify_flag_add(const char *iommu) "ADD SMMUNotifier node for iommu mr=%s"
 smmuv3_notify_flag_del(const char *iommu) "DEL SMMUNotifier node for iommu mr=%s"
 smmuv3_inv_notifiers_iova(const char *name, int asid, int vmid, uint64_t iova, uint8_t tg, uint64_t num_pages, int stage) "iommu mr=%s asid=%d vmid=%d iova=0x%"PRIx64" tg=%d num_pages=0x%"PRIx64" stage=%d"
diff --git a/include/hw/arm/smmu-common.h b/include/hw/arm/smmu-common.h
index e5ad55bba..e5e2d0929 100644
--- a/include/hw/arm/smmu-common.h
+++ b/include/hw/arm/smmu-common.h
@@ -142,6 +142,11 @@ typedef struct SMMUIOTLBKey {
     uint8_t level;
 } SMMUIOTLBKey;
 
+typedef struct SMMUSIDRange {
+    uint32_t start;
+    uint32_t end;
+} SMMUSIDRange;
+
 struct SMMUState {
     /* <private> */
     SysBusDevice  dev;
@@ -219,6 +224,7 @@ void smmu_iotlb_inv_iova(SMMUState *s, int asid, int vmid, dma_addr_t iova,
                          uint8_t tg, uint64_t num_pages, uint8_t ttl);
 void smmu_iotlb_inv_ipa(SMMUState *s, int vmid, dma_addr_t ipa, uint8_t tg,
                         uint64_t num_pages, uint8_t ttl);
+void smmu_configs_inv_sid_range(SMMUState *s, SMMUSIDRange sid_range);
 /* Unmap the range of all the notifiers registered to any IOMMU mr */
 void smmu_inv_notifiers_all(SMMUState *s);
 
-- 
2.47.1
Re: [PATCH v3] hw/arm/smmu: Introduce smmu_configs_inv_sid_range() helper
Posted by Eric Auger 3 weeks, 6 days ago
Hi,

On 2/28/25 4:14 AM, JianChunfu wrote:
> Use a similar terminology smmu_hash_remove_by_sid_range() as the one
> being used for other hash table matching functions since
> smmuv3_invalidate_ste() name is not self explanatory, and introduce a
> helper that invokes the g_hash_table_foreach_remove.
>
> No functional change intended.
>
> Signed-off-by: JianChunfu <jansef.jian@hj-micro.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>

Thanks

Eric
> ---
> v3: - Modify the commit msg
>     - Rename the trace funtion
> v2: - move smmuv3_invalidate_ste() to smmu_hash_remove_by_sid_range()
>     - add function smmu_configs_inv_sid_range()
> v1: - Rename smmuv3_invalidate_ste to smmuv3_hash_remove_by_sid_range
> ---
>  hw/arm/smmu-common.c         | 21 +++++++++++++++++++++
>  hw/arm/smmu-internal.h       |  5 -----
>  hw/arm/smmuv3.c              | 19 ++-----------------
>  hw/arm/trace-events          |  3 ++-
>  include/hw/arm/smmu-common.h |  6 ++++++
>  5 files changed, 31 insertions(+), 23 deletions(-)
>
> diff --git a/hw/arm/smmu-common.c b/hw/arm/smmu-common.c
> index 3f8272875..bad3b3b0b 100644
> --- a/hw/arm/smmu-common.c
> +++ b/hw/arm/smmu-common.c
> @@ -225,6 +225,27 @@ static gboolean smmu_hash_remove_by_vmid_ipa(gpointer key, gpointer value,
>             ((entry->iova & ~info->mask) == info->iova);
>  }
>  
> +static gboolean
> +smmu_hash_remove_by_sid_range(gpointer key, gpointer value, gpointer user_data)
> +{
> +    SMMUDevice *sdev = (SMMUDevice *)key;
> +    uint32_t sid = smmu_get_sid(sdev);
> +    SMMUSIDRange *sid_range = (SMMUSIDRange *)user_data;
> +
> +    if (sid < sid_range->start || sid > sid_range->end) {
> +        return false;
> +    }
> +    trace_smmu_config_cache_inv(sid);
> +    return true;
> +}
> +
> +void smmu_configs_inv_sid_range(SMMUState *s, SMMUSIDRange sid_range)
> +{
> +    trace_smmu_configs_inv_sid_range(sid_range.start, sid_range.end);
> +    g_hash_table_foreach_remove(s->configs, smmu_hash_remove_by_sid_range,
> +                                &sid_range);
> +}
> +
>  void smmu_iotlb_inv_iova(SMMUState *s, int asid, int vmid, dma_addr_t iova,
>                           uint8_t tg, uint64_t num_pages, uint8_t ttl)
>  {
> diff --git a/hw/arm/smmu-internal.h b/hw/arm/smmu-internal.h
> index 843bebb18..d143d296f 100644
> --- a/hw/arm/smmu-internal.h
> +++ b/hw/arm/smmu-internal.h
> @@ -141,9 +141,4 @@ typedef struct SMMUIOTLBPageInvInfo {
>      uint64_t mask;
>  } SMMUIOTLBPageInvInfo;
>  
> -typedef struct SMMUSIDRange {
> -    uint32_t start;
> -    uint32_t end;
> -} SMMUSIDRange;
> -
>  #endif
> diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
> index 4c49b5a88..1c55bc56d 100644
> --- a/hw/arm/smmuv3.c
> +++ b/hw/arm/smmuv3.c
> @@ -903,7 +903,7 @@ static void smmuv3_flush_config(SMMUDevice *sdev)
>      SMMUv3State *s = sdev->smmu;
>      SMMUState *bc = &s->smmu_state;
>  
> -    trace_smmuv3_config_cache_inv(smmu_get_sid(sdev));
> +    trace_smmu_config_cache_inv(smmu_get_sid(sdev));
>      g_hash_table_remove(bc->configs, sdev);
>  }
>  
> @@ -1277,20 +1277,6 @@ static void smmuv3_range_inval(SMMUState *s, Cmd *cmd, SMMUStage stage)
>      }
>  }
>  
> -static gboolean
> -smmuv3_invalidate_ste(gpointer key, gpointer value, gpointer user_data)
> -{
> -    SMMUDevice *sdev = (SMMUDevice *)key;
> -    uint32_t sid = smmu_get_sid(sdev);
> -    SMMUSIDRange *sid_range = (SMMUSIDRange *)user_data;
> -
> -    if (sid < sid_range->start || sid > sid_range->end) {
> -        return false;
> -    }
> -    trace_smmuv3_config_cache_inv(sid);
> -    return true;
> -}
> -
>  static int smmuv3_cmdq_consume(SMMUv3State *s)
>  {
>      SMMUState *bs = ARM_SMMU(s);
> @@ -1373,8 +1359,7 @@ static int smmuv3_cmdq_consume(SMMUv3State *s)
>              sid_range.end = sid_range.start + mask;
>  
>              trace_smmuv3_cmdq_cfgi_ste_range(sid_range.start, sid_range.end);
> -            g_hash_table_foreach_remove(bs->configs, smmuv3_invalidate_ste,
> -                                        &sid_range);
> +            smmu_configs_inv_sid_range(bs, sid_range);
>              break;
>          }
>          case SMMU_CMD_CFGI_CD:
> diff --git a/hw/arm/trace-events b/hw/arm/trace-events
> index c64ad344b..e96f9ae47 100644
> --- a/hw/arm/trace-events
> +++ b/hw/arm/trace-events
> @@ -15,6 +15,8 @@ smmu_iotlb_inv_asid_vmid(int asid, int vmid) "IOTLB invalidate asid=%d vmid=%d"
>  smmu_iotlb_inv_vmid(int vmid) "IOTLB invalidate vmid=%d"
>  smmu_iotlb_inv_vmid_s1(int vmid) "IOTLB invalidate vmid=%d"
>  smmu_iotlb_inv_iova(int asid, uint64_t addr) "IOTLB invalidate asid=%d addr=0x%"PRIx64
> +smmu_configs_inv_sid_range(uint32_t start, uint32_t end) "Config cache INV SID range from 0x%x to 0x%x"
> +smmu_config_cache_inv(uint32_t sid) "Config cache INV for sid=0x%x"
>  smmu_inv_notifiers_mr(const char *name) "iommu mr=%s"
>  smmu_iotlb_lookup_hit(int asid, int vmid, uint64_t addr, uint32_t hit, uint32_t miss, uint32_t p) "IOTLB cache HIT asid=%d vmid=%d addr=0x%"PRIx64" hit=%d miss=%d hit rate=%d"
>  smmu_iotlb_lookup_miss(int asid, int vmid, uint64_t addr, uint32_t hit, uint32_t miss, uint32_t p) "IOTLB cache MISS asid=%d vmid=%d addr=0x%"PRIx64" hit=%d miss=%d hit rate=%d"
> @@ -52,7 +54,6 @@ smmuv3_cmdq_tlbi_nh(int vmid) "vmid=%d"
>  smmuv3_cmdq_tlbi_nsnh(void) ""
>  smmuv3_cmdq_tlbi_nh_asid(int asid) "asid=%d"
>  smmuv3_cmdq_tlbi_s12_vmid(int vmid) "vmid=%d"
> -smmuv3_config_cache_inv(uint32_t sid) "Config cache INV for sid=0x%x"
>  smmuv3_notify_flag_add(const char *iommu) "ADD SMMUNotifier node for iommu mr=%s"
>  smmuv3_notify_flag_del(const char *iommu) "DEL SMMUNotifier node for iommu mr=%s"
>  smmuv3_inv_notifiers_iova(const char *name, int asid, int vmid, uint64_t iova, uint8_t tg, uint64_t num_pages, int stage) "iommu mr=%s asid=%d vmid=%d iova=0x%"PRIx64" tg=%d num_pages=0x%"PRIx64" stage=%d"
> diff --git a/include/hw/arm/smmu-common.h b/include/hw/arm/smmu-common.h
> index e5ad55bba..e5e2d0929 100644
> --- a/include/hw/arm/smmu-common.h
> +++ b/include/hw/arm/smmu-common.h
> @@ -142,6 +142,11 @@ typedef struct SMMUIOTLBKey {
>      uint8_t level;
>  } SMMUIOTLBKey;
>  
> +typedef struct SMMUSIDRange {
> +    uint32_t start;
> +    uint32_t end;
> +} SMMUSIDRange;
> +
>  struct SMMUState {
>      /* <private> */
>      SysBusDevice  dev;
> @@ -219,6 +224,7 @@ void smmu_iotlb_inv_iova(SMMUState *s, int asid, int vmid, dma_addr_t iova,
>                           uint8_t tg, uint64_t num_pages, uint8_t ttl);
>  void smmu_iotlb_inv_ipa(SMMUState *s, int vmid, dma_addr_t ipa, uint8_t tg,
>                          uint64_t num_pages, uint8_t ttl);
> +void smmu_configs_inv_sid_range(SMMUState *s, SMMUSIDRange sid_range);
>  /* Unmap the range of all the notifiers registered to any IOMMU mr */
>  void smmu_inv_notifiers_all(SMMUState *s);
>
Re: [PATCH v3] hw/arm/smmu: Introduce smmu_configs_inv_sid_range() helper
Posted by Peter Maydell 3 weeks, 5 days ago
On Wed, 5 Mar 2025 at 16:56, Eric Auger <eric.auger@redhat.com> wrote:
>
>
> Hi,
>
> On 2/28/25 4:14 AM, JianChunfu wrote:
> > Use a similar terminology smmu_hash_remove_by_sid_range() as the one
> > being used for other hash table matching functions since
> > smmuv3_invalidate_ste() name is not self explanatory, and introduce a
> > helper that invokes the g_hash_table_foreach_remove.
> >
> > No functional change intended.
> >
> > Signed-off-by: JianChunfu <jansef.jian@hj-micro.com>
> Reviewed-by: Eric Auger <eric.auger@redhat.com>
>


Applied to target-arm.next, thanks.

-- PMM