diff mbox series

[kvm-unit-tests,v3,3/8] pci-testdev: ioremap regions

Message ID 20210429164130.405198-4-drjones@redhat.com (mailing list archive)
State New, archived
Headers show
Series arm/arm64: Prepare for target-efi | expand

Commit Message

Andrew Jones April 29, 2021, 4:41 p.m. UTC 
Don't assume the physical addresses used with PCI have already been
identity mapped.

Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>
---
 lib/pci-host-generic.c | 5 ++---
 lib/pci-host-generic.h | 4 ++--
 lib/pci-testdev.c      | 4 ++++
 3 files changed, 8 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/lib/pci-host-generic.c b/lib/pci-host-generic.c
index 818150dc0a66..c5e3db9b96f4 100644
--- a/lib/pci-host-generic.c
+++ b/lib/pci-host-generic.c
@@ -122,7 +122,7 @@  static struct pci_host_bridge *pci_dt_probe(void)
 		      sizeof(host->addr_space[0]) * nr_addr_spaces);
 	assert(host != NULL);
 
-	host->start		= base.addr;
+	host->start		= ioremap(base.addr, base.size);
 	host->size		= base.size;
 	host->bus		= bus;
 	host->bus_max		= bus_max;
@@ -279,8 +279,7 @@  phys_addr_t pci_host_bridge_get_paddr(u64 pci_addr)
 
 static void __iomem *pci_get_dev_conf(struct pci_host_bridge *host, int devfn)
 {
-	return (void __iomem *)(unsigned long)
-		host->start + (devfn << PCI_ECAM_DEVFN_SHIFT);
+	return host->start + (devfn << PCI_ECAM_DEVFN_SHIFT);
 }
 
 u8 pci_config_readb(pcidevaddr_t dev, u8 off)
diff --git a/lib/pci-host-generic.h b/lib/pci-host-generic.h
index fd30e7c74ed8..0ffe6380ec8f 100644
--- a/lib/pci-host-generic.h
+++ b/lib/pci-host-generic.h
@@ -18,8 +18,8 @@  struct pci_addr_space {
 };
 
 struct pci_host_bridge {
-	phys_addr_t		start;
-	phys_addr_t		size;
+	void __iomem		*start;
+	size_t			size;
 	int			bus;
 	int			bus_max;
 	int			nr_addr_spaces;
diff --git a/lib/pci-testdev.c b/lib/pci-testdev.c
index 039bb44781c1..4f2e5663b2d6 100644
--- a/lib/pci-testdev.c
+++ b/lib/pci-testdev.c
@@ -185,7 +185,11 @@  int pci_testdev(void)
 	mem = ioremap(addr, PAGE_SIZE);
 
 	addr = pci_bar_get_addr(&pci_dev, 1);
+#if defined(__i386__) || defined(__x86_64__)
 	io = (void *)(unsigned long)addr;
+#else
+	io = ioremap(addr, PAGE_SIZE);
+#endif
 
 	nr_tests += pci_testdev_all(mem, &pci_testdev_mem_ops);
 	nr_tests += pci_testdev_all(io, &pci_testdev_io_ops);