git: d72a6e531022 - stable/13 - pci_cfgreg: Add shims to preserve ABI of pci_cfgreg(read|write)

The branch stable/13 has been updated by jhb:

URL: https://cgit.FreeBSD.org/src/commit/?id=d72a6e5310221822aeb336d84e38ab5ecd37ea64

commit d72a6e5310221822aeb336d84e38ab5ecd37ea64
Author:     John Baldwin <jhb@FreeBSD.org>
AuthorDate: 2024-01-18 23:19:11 +0000
Commit:     John Baldwin <jhb@FreeBSD.org>
CommitDate: 2024-01-18 23:27:25 +0000

    pci_cfgreg: Add shims to preserve ABI of pci_cfgreg(read|write)
    
    This is a direct commit to stable/14 to preserve the ABI of the
    the pci_cfgregread and pci_cfgregwrite functions.   The new routines
    are renamed to add a _domain suffix and macros map the new API to
    the new functions.
    
    Note: No API compatibility has been provided as modules in ports
    should not be using this internal API (normal PCI drivers use
    pci_read_config and pci_write_config with a device_t).
    
    (cherry picked from commit b5d2a06b2c4f50fd20774928602a3b5f0f27b127)
---
 sys/amd64/pci/pci_cfgreg.c     | 27 ++++++++++++++++++++++++---
 sys/arm64/acpica/pci_cfgreg.c  | 27 ++++++++++++++++++++++++---
 sys/arm64/include/pci_cfgreg.h |  7 +++++--
 sys/i386/pci/pci_cfgreg.c      | 20 ++++++++++++++++++++
 sys/x86/include/pci_cfgreg.h   |  7 +++++--
 5 files changed, 78 insertions(+), 10 deletions(-)

diff --git a/sys/amd64/pci/pci_cfgreg.c b/sys/amd64/pci/pci_cfgreg.c
index 5218ff3a40f7..6b95c6fae0ab 100644
--- a/sys/amd64/pci/pci_cfgreg.c
+++ b/sys/amd64/pci/pci_cfgreg.c
@@ -95,7 +95,8 @@ pci_docfgregread(int domain, int bus, int slot, int func, int reg, int bytes)
  * Read configuration space register
  */
 u_int32_t
-pci_cfgregread(int domain, int bus, int slot, int func, int reg, int bytes)
+pci_cfgregread_domain(int domain, int bus, int slot, int func, int reg,
+    int bytes)
 {
 	uint32_t line;
 
@@ -121,8 +122,8 @@ pci_cfgregread(int domain, int bus, int slot, int func, int reg, int bytes)
  * Write configuration space register 
  */
 void
-pci_cfgregwrite(int domain, int bus, int slot, int func, int reg, uint32_t data,
-    int bytes)
+pci_cfgregwrite_domain(int domain, int bus, int slot, int func, int reg,
+    uint32_t data, int bytes)
 {
 	if (domain == 0 && bus == 0 && (1 << slot & pcie_badslots) != 0) {
 		pcireg_cfgwrite(bus, slot, func, reg, data, bytes);
@@ -333,3 +334,23 @@ pciereg_cfgwrite(int domain, int bus, unsigned slot, unsigned func,
 		break;
 	}
 }
+
+/* ABI compatibility shims. */
+#undef pci_cfgregread
+#undef pci_cfgregwrite
+
+u_int32_t pci_cfgregread(int bus, int slot, int func, int reg, int bytes);
+void	pci_cfgregwrite(int bus, int slot, int func, int reg, uint32_t data,
+    int bytes);
+
+u_int32_t
+pci_cfgregread(int bus, int slot, int func, int reg, int bytes)
+{
+	return (pci_cfgregread_domain(0, bus, slot, func, reg, bytes));
+}
+
+void
+pci_cfgregwrite(int bus, int slot, int func, int reg, uint32_t data, int bytes)
+{
+	return (pci_cfgregwrite_domain(0, bus, slot, func, reg, data, bytes));
+}
diff --git a/sys/arm64/acpica/pci_cfgreg.c b/sys/arm64/acpica/pci_cfgreg.c
index 55627d4abfaf..3b38be05beb5 100644
--- a/sys/arm64/acpica/pci_cfgreg.c
+++ b/sys/arm64/acpica/pci_cfgreg.c
@@ -41,7 +41,8 @@
  * Read configuration space register
  */
 uint32_t
-pci_cfgregread(int domain, int bus, int slot, int func, int reg, int bytes)
+pci_cfgregread_domain(int domain, int bus, int slot, int func, int reg,
+    int bytes)
 {
 
 	/* ARM64TODO */
@@ -53,8 +54,8 @@ pci_cfgregread(int domain, int bus, int slot, int func, int reg, int bytes)
  * Write configuration space register
  */
 void
-pci_cfgregwrite(int domain, int bus, int slot, int func, int reg, uint32_t data,
-    int bytes)
+pci_cfgregwrite_domain(int domain, int bus, int slot, int func, int reg,
+    uint32_t data, int bytes)
 {
 
 	/* ARM64TODO */
@@ -72,3 +73,23 @@ pci_cfgregopen(void)
 	panic("pci_cfgregopen not implemented");
 	return (0);
 }
+
+/* ABI compatibility shims. */
+#undef pci_cfgregread
+#undef pci_cfgregwrite
+
+uint32_t pci_cfgregread(int bus, int slot, int func, int reg, int bytes);
+void	pci_cfgregwrite(int bus, int slot, int func, int reg, uint32_t data,
+    int bytes);
+
+uint32_t
+pci_cfgregread(int bus, int slot, int func, int reg, int bytes)
+{
+	return (pci_cfgregread_domain(0, bus, slot, func, reg, bytes));
+}
+
+void
+pci_cfgregwrite(int bus, int slot, int func, int reg, uint32_t data, int bytes)
+{
+	return (pci_cfgregwrite_domain(0, bus, slot, func, reg, data, bytes));
+}
diff --git a/sys/arm64/include/pci_cfgreg.h b/sys/arm64/include/pci_cfgreg.h
index 579dcd954c9b..cce7e6bd8961 100644
--- a/sys/arm64/include/pci_cfgreg.h
+++ b/sys/arm64/include/pci_cfgreg.h
@@ -27,7 +27,10 @@
 #define	_MACHINE_PCI_CFGREG_H
 
 int pci_cfgregopen(void);
-uint32_t pci_cfgregread(int, int, int, int, int, int);
-void pci_cfgregwrite(int, int, int, int, int, uint32_t, int);
+uint32_t pci_cfgregread_domain(int, int, int, int, int, int);
+void pci_cfgregwrite_domain(int, int, int, int, int, uint32_t, int);
+
+#define	pci_cfgregread		pci_cfgregread_domain
+#define	pci_cfgregwrite		pci_cfgregwrite_domain
 
 #endif /* !_MACHINE_PCI_CFGREG_H */
diff --git a/sys/i386/pci/pci_cfgreg.c b/sys/i386/pci/pci_cfgreg.c
index a512e3ea2c66..ef712fe49fe3 100644
--- a/sys/i386/pci/pci_cfgreg.c
+++ b/sys/i386/pci/pci_cfgreg.c
@@ -640,3 +640,23 @@ pciereg_cfgwrite(int domain, int bus, unsigned slot, unsigned func,
 
 	critical_exit();
 }
+
+/* ABI compatibility shims. */
+#undef pci_cfgregread
+#undef pci_cfgregwrite
+
+u_int32_t pci_cfgregread(int bus, int slot, int func, int reg, int bytes);
+void	pci_cfgregwrite(int bus, int slot, int func, int reg, uint32_t data,
+    int bytes);
+
+u_int32_t
+pci_cfgregread(int bus, int slot, int func, int reg, int bytes)
+{
+	return (pci_cfgregread_domain(0, bus, slot, func, reg, bytes));
+}
+
+void
+pci_cfgregwrite(int bus, int slot, int func, int reg, uint32_t data, int bytes)
+{
+	return (pci_cfgregwrite_domain(0, bus, slot, func, reg, data, bytes));
+}
diff --git a/sys/x86/include/pci_cfgreg.h b/sys/x86/include/pci_cfgreg.h
index 370113b9d7bd..680a4551af07 100644
--- a/sys/x86/include/pci_cfgreg.h
+++ b/sys/x86/include/pci_cfgreg.h
@@ -58,12 +58,15 @@ extern int cfgmech;
 rman_res_t	hostb_alloc_start(int type, rman_res_t start, rman_res_t end, rman_res_t count);
 int		pcie_cfgregopen(uint64_t base, uint8_t minbus, uint8_t maxbus);
 int		pci_cfgregopen(void);
-u_int32_t	pci_cfgregread(int domain, int bus, int slot, int func, int reg, int bytes);
-void		pci_cfgregwrite(int domain, int bus, int slot, int func, int reg, u_int32_t data, int bytes);
+u_int32_t	pci_cfgregread_domain(int domain, int bus, int slot, int func, int reg, int bytes);
+void		pci_cfgregwrite_domain(int domain, int bus, int slot, int func, int reg, u_int32_t data, int bytes);
 #ifdef __HAVE_PIR
 void		pci_pir_open(void);
 int		pci_pir_probe(int bus, int require_parse);
 int		pci_pir_route_interrupt(int bus, int device, int func, int pin);
 #endif
 
+#define	pci_cfgregread		pci_cfgregread_domain
+#define	pci_cfgregwrite		pci_cfgregwrite_domain
+
 #endif /* !__X86_PCI_CFGREG_H__ */