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envelope-from=kshk@linux.ibm.com; helo=mx0b-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, 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: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org This field is only used when S390PCIBusDevice exists, so it can be moved there to simplify S390PCIIOMMU towards a structure that contains only the IOMMU container information needed by the PCI layer for a given slot. Reviewed-by: Farhan Ali Reviewed-by: Matthew Rosato Signed-off-by: Konstantin Shkolnyy --- hw/s390x/s390-pci-bus.c | 35 +++++++++++++++++--------------- hw/s390x/s390-pci-inst.c | 28 +++++++++++++------------ include/hw/s390x/s390-pci-bus.h | 6 +++--- include/hw/s390x/s390-pci-inst.h | 4 ++-- 4 files changed, 39 insertions(+), 34 deletions(-) diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c index 10b417a779..b6a03bcc6a 100644 --- a/hw/s390x/s390-pci-bus.c +++ b/hw/s390x/s390-pci-bus.c @@ -207,7 +207,7 @@ void s390_pci_sclp_deconfigure(SCCB *sccb) pci_dereg_irqs(pbdev); } if (pbdev->iommu->enabled) { - pci_dereg_ioat(pbdev->iommu); + pci_dereg_ioat(pbdev); } pbdev->state = ZPCI_FS_STANDBY; rc = SCLP_RC_NORMAL_COMPLETION; @@ -539,7 +539,8 @@ uint16_t s390_guest_io_table_walk(uint64_t g_iota, hwaddr addr, static IOMMUTLBEntry s390_translate_iommu(IOMMUMemoryRegion *mr, hwaddr addr, IOMMUAccessFlags flag, int iommu_idx) { - S390PCIIOMMU *iommu = container_of(mr, S390PCIIOMMU, iommu_mr); + S390PCIBusDevice *pbdev = container_of(mr, S390PCIBusDevice, iommu_mr); + S390PCIIOMMU *iommu = pbdev->iommu; S390IOTLBEntry *entry; uint64_t iova = addr & TARGET_PAGE_MASK; uint16_t error = 0; @@ -593,18 +594,18 @@ err: return ret; } -static void s390_pci_ioat_replay(S390PCIIOMMU *iommu) +static void s390_pci_ioat_replay(S390PCIBusDevice *pbdev) { - S390PCIBusDevice *pbdev = iommu->pbdev; S390IOTLBEntry entry; uint16_t error = 0; uint32_t dma_avail; hwaddr curr, end; + S390PCIIOMMU *iommu = pbdev->iommu; curr = iommu->pba; end = iommu->pal; - if (iommu->dm_mr || !pbdev) { + if (iommu->dm_mr) { /* If direct mapping is used, there are no guest tables to replay */ return; } @@ -629,7 +630,7 @@ static void s390_pci_ioat_replay(S390PCIIOMMU *iommu) if (entry.perm != IOMMU_NONE) { while (entry.iova < curr && entry.iova < end) { if (dma_avail > 0) { - dma_avail = s390_pci_update_iotlb(iommu, &entry); + dma_avail = s390_pci_update_iotlb(pbdev, &entry); } else { /* * There is no reliable method to request the guest to @@ -654,9 +655,9 @@ static void s390_pci_ioat_replay(S390PCIIOMMU *iommu) static void s390_pci_iommu_replay(IOMMUMemoryRegion *mr, IOMMUNotifier *notifier) { - S390PCIIOMMU *iommu = container_of(mr, S390PCIIOMMU, iommu_mr); + S390PCIBusDevice *pbdev = container_of(mr, S390PCIBusDevice, iommu_mr); - s390_pci_ioat_replay(iommu); + s390_pci_ioat_replay(pbdev); } static S390PCIIOMMU *s390_pci_get_iommu(S390pciState *s, PCIBus *bus, @@ -778,19 +779,20 @@ static const MemoryRegionOps s390_msi_ctrl_ops = { .endianness = DEVICE_LITTLE_ENDIAN, }; -void s390_pci_iommu_enable(S390PCIIOMMU *iommu) +void s390_pci_iommu_enable(S390PCIBusDevice *pbdev) { + S390PCIIOMMU *iommu = pbdev->iommu; /* * The iommu region is initialized against a 0-mapped address space, * so the smallest IOMMU region we can define runs from 0 to the end * of the PCI address space. */ char *name = g_strdup_printf("iommu-s390-%04x", iommu->pbdev->uid); - memory_region_init_iommu(&iommu->iommu_mr, sizeof(iommu->iommu_mr), + memory_region_init_iommu(&pbdev->iommu_mr, sizeof(pbdev->iommu_mr), TYPE_S390_IOMMU_MEMORY_REGION, OBJECT(&iommu->mr), name, iommu->pal + 1); iommu->enabled = true; - memory_region_add_subregion(&iommu->mr, 0, MEMORY_REGION(&iommu->iommu_mr)); + memory_region_add_subregion(&iommu->mr, 0, MEMORY_REGION(&pbdev->iommu_mr)); g_free(name); } @@ -816,8 +818,9 @@ void s390_pci_iommu_direct_map_enable(S390PCIIOMMU *iommu) iommu->dm_mr); } -void s390_pci_iommu_disable(S390PCIIOMMU *iommu) +void s390_pci_iommu_disable(S390PCIBusDevice *pbdev) { + S390PCIIOMMU *iommu = pbdev->iommu; iommu->enabled = false; g_hash_table_remove_all(iommu->iotlb); if (iommu->dm_mr) { @@ -827,8 +830,8 @@ void s390_pci_iommu_disable(S390PCIIOMMU *iommu) iommu->dm_mr = NULL; } else { memory_region_del_subregion(&iommu->mr, - MEMORY_REGION(&iommu->iommu_mr)); - object_unparent(OBJECT(&iommu->iommu_mr)); + MEMORY_REGION(&pbdev->iommu_mr)); + object_unparent(OBJECT(&pbdev->iommu_mr)); } } @@ -1427,7 +1430,7 @@ static void s390_pcihost_reset(DeviceState *dev) pci_dereg_irqs(pbdev); } if (pbdev->iommu->enabled) { - pci_dereg_ioat(pbdev->iommu); + pci_dereg_ioat(pbdev); } pbdev->state = ZPCI_FS_STANDBY; s390_pci_perform_unplug(pbdev); @@ -1568,7 +1571,7 @@ static void s390_pci_device_reset(DeviceState *dev) pci_dereg_irqs(pbdev); } if (pbdev->iommu->enabled) { - pci_dereg_ioat(pbdev->iommu); + pci_dereg_ioat(pbdev); } fmb_timer_free(pbdev); diff --git a/hw/s390x/s390-pci-inst.c b/hw/s390x/s390-pci-inst.c index 00a847f493..0772f04cc2 100644 --- a/hw/s390x/s390-pci-inst.c +++ b/hw/s390x/s390-pci-inst.c @@ -630,9 +630,10 @@ int pcistg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra) return 0; } -uint32_t s390_pci_update_iotlb(S390PCIIOMMU *iommu, +uint32_t s390_pci_update_iotlb(S390PCIBusDevice *pbdev, S390IOTLBEntry *entry) { + S390PCIIOMMU *iommu = pbdev->iommu; S390IOTLBEntry *cache = g_hash_table_lookup(iommu->iotlb, &entry->iova); IOMMUTLBEvent event = { .type = entry->perm ? IOMMU_NOTIFIER_MAP : IOMMU_NOTIFIER_UNMAP, @@ -662,7 +663,7 @@ uint32_t s390_pci_update_iotlb(S390PCIIOMMU *iommu, event.type = IOMMU_NOTIFIER_UNMAP; event.entry.perm = IOMMU_NONE; - memory_region_notify_iommu(&iommu->iommu_mr, 0, event); + memory_region_notify_iommu(&pbdev->iommu_mr, 0, event); event.type = IOMMU_NOTIFIER_MAP; event.entry.perm = entry->perm; } @@ -680,13 +681,13 @@ uint32_t s390_pci_update_iotlb(S390PCIIOMMU *iommu, * All associated iotlb entries have already been cleared, trigger the * unmaps. */ - memory_region_notify_iommu(&iommu->iommu_mr, 0, event); + memory_region_notify_iommu(&pbdev->iommu_mr, 0, event); out: return iommu->dma_limit ? iommu->dma_limit->avail : 1; } -static void s390_pci_batch_unmap(S390PCIIOMMU *iommu, uint64_t iova, +static void s390_pci_batch_unmap(S390PCIBusDevice *pbdev, uint64_t iova, uint64_t len) { uint64_t remain = len, start = iova, end = start + len - 1, mask, size; @@ -704,7 +705,7 @@ static void s390_pci_batch_unmap(S390PCIIOMMU *iommu, uint64_t iova, size = mask + 1; event.entry.iova = start; event.entry.addr_mask = mask; - memory_region_notify_iommu(&iommu->iommu_mr, 0, event); + memory_region_notify_iommu(&pbdev->iommu_mr, 0, event); start += size; remain -= size; } @@ -801,14 +802,14 @@ int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra) coalesce += entry.len; } else if (coalesce > 0) { /* Unleash the coalesced unmap before processing a new map */ - s390_pci_batch_unmap(iommu, iova, coalesce); + s390_pci_batch_unmap(pbdev, iova, coalesce); coalesce = 0; } start += entry.len; while (entry.iova < start && entry.iova < end) { if (dma_avail > 0 || entry.perm == IOMMU_NONE) { - dma_avail = s390_pci_update_iotlb(iommu, &entry); + dma_avail = s390_pci_update_iotlb(pbdev, &entry); entry.iova += TARGET_PAGE_SIZE; entry.translated_addr += TARGET_PAGE_SIZE; } else { @@ -824,7 +825,7 @@ int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra) } if (coalesce) { /* Unleash the coalesced unmap before finishing rpcit */ - s390_pci_batch_unmap(iommu, iova, coalesce); + s390_pci_batch_unmap(pbdev, iova, coalesce); coalesce = 0; } if (again && dma_avail > 0) @@ -1059,7 +1060,7 @@ static int reg_ioat(CPUS390XState *env, S390PCIBusDevice *pbdev, ZpciFib fib, iommu->g_iota = g_iota; if (t) { - s390_pci_iommu_enable(iommu); + s390_pci_iommu_enable(pbdev); } else { s390_pci_iommu_direct_map_enable(iommu); } @@ -1067,9 +1068,10 @@ static int reg_ioat(CPUS390XState *env, S390PCIBusDevice *pbdev, ZpciFib fib, return 0; } -void pci_dereg_ioat(S390PCIIOMMU *iommu) +void pci_dereg_ioat(S390PCIBusDevice *pbdev) { - s390_pci_iommu_disable(iommu); + S390PCIIOMMU *iommu = pbdev->iommu; + s390_pci_iommu_disable(pbdev); iommu->pba = 0; iommu->pal = 0; iommu->g_iota = 0; @@ -1293,7 +1295,7 @@ int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar, cc = ZPCI_PCI_LS_ERR; s390_set_status_code(env, r1, ZPCI_MOD_ST_SEQUENCE); } else { - pci_dereg_ioat(pbdev->iommu); + pci_dereg_ioat(pbdev); } break; case ZPCI_MOD_FC_REREG_IOAT: @@ -1304,7 +1306,7 @@ int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar, cc = ZPCI_PCI_LS_ERR; s390_set_status_code(env, r1, ZPCI_MOD_ST_SEQUENCE); } else { - pci_dereg_ioat(pbdev->iommu); + pci_dereg_ioat(pbdev); if (reg_ioat(env, pbdev, fib, ra)) { cc = ZPCI_PCI_LS_ERR; s390_set_status_code(env, r1, ZPCI_MOD_ST_INSUF_RES); diff --git a/include/hw/s390x/s390-pci-bus.h b/include/hw/s390x/s390-pci-bus.h index eb15cb8b2d..a71f562dfc 100644 --- a/include/hw/s390x/s390-pci-bus.h +++ b/include/hw/s390x/s390-pci-bus.h @@ -276,7 +276,6 @@ struct S390PCIIOMMU { S390PCIBusDevice *pbdev; AddressSpace as; MemoryRegion mr; - IOMMUMemoryRegion iommu_mr; MemoryRegion *dm_mr; bool enabled; uint64_t g_iota; @@ -354,6 +353,7 @@ struct S390PCIBusDevice { S390MsixInfo msix; AdapterRoutes routes; S390PCIIOMMU *iommu; + IOMMUMemoryRegion iommu_mr; MemoryRegion msix_notify_mr; IndAddr *summary_ind; IndAddr *indicator; @@ -391,9 +391,9 @@ int pci_chsc_sei_nt2_have_event(void); void s390_pci_sclp_configure(SCCB *sccb); void s390_pci_sclp_deconfigure(SCCB *sccb); bool s390_pci_is_translation_enabled(uint64_t g_iota); -void s390_pci_iommu_enable(S390PCIIOMMU *iommu); +void s390_pci_iommu_enable(S390PCIBusDevice *pbdev); void s390_pci_iommu_direct_map_enable(S390PCIIOMMU *iommu); -void s390_pci_iommu_disable(S390PCIIOMMU *iommu); +void s390_pci_iommu_disable(S390PCIBusDevice *pbdev); void s390_pci_generate_error_event(uint16_t pec, uint32_t fh, uint32_t fid, uint64_t faddr, uint32_t e); uint16_t s390_guest_io_table_walk(uint64_t g_iota, hwaddr addr, diff --git a/include/hw/s390x/s390-pci-inst.h b/include/hw/s390x/s390-pci-inst.h index c782990e3b..38268c256e 100644 --- a/include/hw/s390x/s390-pci-inst.h +++ b/include/hw/s390x/s390-pci-inst.h @@ -99,7 +99,7 @@ typedef struct ZpciFib { } QEMU_PACKED ZpciFib; int pci_dereg_irqs(S390PCIBusDevice *pbdev); -void pci_dereg_ioat(S390PCIIOMMU *iommu); +void pci_dereg_ioat(S390PCIBusDevice *pbdev); int clp_service_call(S390CPU *cpu, uint8_t r2, uintptr_t ra); int pcilg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra); int pcistg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra); @@ -111,7 +111,7 @@ int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar, int stpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar, uintptr_t ra); void fmb_timer_free(S390PCIBusDevice *pbdev); -uint32_t s390_pci_update_iotlb(S390PCIIOMMU *iommu, S390IOTLBEntry *entry); +uint32_t s390_pci_update_iotlb(S390PCIBusDevice *pbdev, S390IOTLBEntry *entry); #define ZPCI_IO_BAR_MIN 0 #define ZPCI_IO_BAR_MAX 5 -- 2.34.1