From 6808bca939b8722d98165319ba42366ca80de907 Mon Sep 17 00:00:00 2001 From: Eric Auger Date: Tue, 28 Jul 2020 17:08:06 +0200 Subject: hw/arm/smmu-common: Add IOTLB helpers Add two helpers: one to lookup for a given IOTLB entry and one to insert a new entry. We also move the tracing there. Signed-off-by: Eric Auger Reviewed-by: Peter Maydell Message-id: 20200728150815.11446-3-eric.auger@redhat.com Signed-off-by: Peter Maydell --- hw/arm/smmuv3.c | 26 ++------------------------ 1 file changed, 2 insertions(+), 24 deletions(-) (limited to 'hw/arm/smmuv3.c') diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c index 57a79df55b..cd2a2e7e14 100644 --- a/hw/arm/smmuv3.c +++ b/hw/arm/smmuv3.c @@ -636,7 +636,6 @@ static IOMMUTLBEntry smmuv3_translate(IOMMUMemoryRegion *mr, hwaddr addr, .addr_mask = ~(hwaddr)0, .perm = IOMMU_NONE, }; - SMMUIOTLBKey key, *new_key; qemu_mutex_lock(&s->mutex); @@ -675,16 +674,8 @@ static IOMMUTLBEntry smmuv3_translate(IOMMUMemoryRegion *mr, hwaddr addr, page_mask = (1ULL << (tt->granule_sz)) - 1; aligned_addr = addr & ~page_mask; - key.asid = cfg->asid; - key.iova = aligned_addr; - - cached_entry = g_hash_table_lookup(bs->iotlb, &key); + cached_entry = smmu_iotlb_lookup(bs, cfg, aligned_addr); if (cached_entry) { - cfg->iotlb_hits++; - trace_smmu_iotlb_cache_hit(cfg->asid, aligned_addr, - cfg->iotlb_hits, cfg->iotlb_misses, - 100 * cfg->iotlb_hits / - (cfg->iotlb_hits + cfg->iotlb_misses)); if ((flag & IOMMU_WO) && !(cached_entry->perm & IOMMU_WO)) { status = SMMU_TRANS_ERROR; if (event.record_trans_faults) { @@ -698,16 +689,6 @@ static IOMMUTLBEntry smmuv3_translate(IOMMUMemoryRegion *mr, hwaddr addr, goto epilogue; } - cfg->iotlb_misses++; - trace_smmu_iotlb_cache_miss(cfg->asid, addr & ~page_mask, - cfg->iotlb_hits, cfg->iotlb_misses, - 100 * cfg->iotlb_hits / - (cfg->iotlb_hits + cfg->iotlb_misses)); - - if (g_hash_table_size(bs->iotlb) >= SMMU_IOTLB_MAX_SIZE) { - smmu_iotlb_inv_all(bs); - } - cached_entry = g_new0(IOMMUTLBEntry, 1); if (smmu_ptw(cfg, aligned_addr, flag, cached_entry, &ptw_info)) { @@ -753,10 +734,7 @@ static IOMMUTLBEntry smmuv3_translate(IOMMUMemoryRegion *mr, hwaddr addr, } status = SMMU_TRANS_ERROR; } else { - new_key = g_new0(SMMUIOTLBKey, 1); - new_key->asid = cfg->asid; - new_key->iova = aligned_addr; - g_hash_table_insert(bs->iotlb, new_key, cached_entry); + smmu_iotlb_insert(bs, cfg, cached_entry); status = SMMU_TRANS_SUCCESS; } -- cgit v1.2.3