[PATCH RESEND v3 1/2] x86/mmcfg: Rename pt_pci_init() and call it in acpi_mmcfg_init()

[Zhenzhong Duan <zhenzhong.duan@oracle.com>]

Given what pt_pci_init() actually does, rename it properly and move its
declaration to pci.h, move the only call in acpi_mmcfg_init().

No functional change.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Tested-by: Gopalasetty, Manoj <manoj.gopalasetty@hpe.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
---
 xen/arch/x86/setup.c                  |    2 --
 xen/arch/x86/x86_64/mmconfig-shared.c |    2 ++
 xen/drivers/passthrough/pci.c         |    2 +-
 xen/include/xen/iommu.h               |    2 --
 xen/include/xen/pci.h                 |    1 +
 5 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c
index 8301de8..d5cc584 100644
--- a/xen/arch/x86/setup.c
+++ b/xen/arch/x86/setup.c
@@ -1596,8 +1596,6 @@ void __init noreturn __start_xen(unsigned long mbi_p)
 
     local_irq_enable();
 
-    pt_pci_init();
-
     vesa_mtrr_init();
 
     acpi_mmcfg_init();
diff --git a/xen/arch/x86/x86_64/mmconfig-shared.c b/xen/arch/x86/x86_64/mmconfig-shared.c
index 7c3b7fd..c426354 100644
--- a/xen/arch/x86/x86_64/mmconfig-shared.c
+++ b/xen/arch/x86/x86_64/mmconfig-shared.c
@@ -402,6 +402,8 @@ void __init acpi_mmcfg_init(void)
 {
     bool_t valid = 1;
 
+    pci_segments_init();
+
     /* MMCONFIG disabled */
     if ((pci_probe & PCI_PROBE_MMCONF) == 0)
         return;
diff --git a/xen/drivers/passthrough/pci.c b/xen/drivers/passthrough/pci.c
index c4890a4..d1adffa 100644
--- a/xen/drivers/passthrough/pci.c
+++ b/xen/drivers/passthrough/pci.c
@@ -126,7 +126,7 @@ static int pci_segments_iterate(
     return rc;
 }
 
-void __init pt_pci_init(void)
+void __init pci_segments_init(void)
 {
     radix_tree_init(&pci_segments);
     if ( !alloc_pseg(0) )
diff --git a/xen/include/xen/iommu.h b/xen/include/xen/iommu.h
index 6b42e3b..e35d941 100644
--- a/xen/include/xen/iommu.h
+++ b/xen/include/xen/iommu.h
@@ -92,8 +92,6 @@ struct domain_iommu {
 #define iommu_clear_feature(d, f) clear_bit(f, dom_iommu(d)->features)
 
 #ifdef CONFIG_HAS_PCI
-void pt_pci_init(void);
-
 struct pirq;
 int hvm_do_IRQ_dpci(struct domain *, struct pirq *);
 int pt_irq_create_bind(struct domain *, const struct xen_domctl_bind_pt_irq *);
diff --git a/xen/include/xen/pci.h b/xen/include/xen/pci.h
index 4cfa774..580e820 100644
--- a/xen/include/xen/pci.h
+++ b/xen/include/xen/pci.h
@@ -143,6 +143,7 @@ struct pci_dev *pci_lock_domain_pdev(
 void setup_hwdom_pci_devices(struct domain *,
                             int (*)(u8 devfn, struct pci_dev *));
 int pci_release_devices(struct domain *d);
+void pci_segments_init(void);
 int pci_add_segment(u16 seg);
 const unsigned long *pci_get_ro_map(u16 seg);
 int pci_add_device(u16 seg, u8 bus, u8 devfn,
-- 
1.7.3

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