Thread (19 messages) 19 messages, 5 authors, 2019-06-03
STALE2556d
Revisions (4)
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  2. resend [diff vs current]
  3. v2 [diff vs current]
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[PATCH v3 2/3] powerpc/64: Enable pcibios_after_init hook on ppc64

From: Shawn Anastasio <hidden>
Date: 2019-05-28 04:03:26
Also in: linux-pci, lkml
Subsystem: linux for powerpc (32-bit and 64-bit), the rest · Maintainers: Madhavan Srinivasan, Michael Ellerman, Linus Torvalds

Enable the pcibios_after_init hook on all powerpc platforms.
This hook is executed at the end of pcibios_init and was previously
only available on CONFIG_PPC32.

Since it is useful and not inherently limited to 32-bit mode,
remove the limitation and allow it on all powerpc platforms.

Signed-off-by: Shawn Anastasio <redacted>
---
 arch/powerpc/include/asm/machdep.h | 3 +--
 arch/powerpc/kernel/pci_64.c       | 4 ++++
 2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h
index 2f0ca6560e47..2fbfaa9176ed 100644
--- a/arch/powerpc/include/asm/machdep.h
+++ b/arch/powerpc/include/asm/machdep.h
@@ -150,6 +150,7 @@ struct machdep_calls {
 	void		(*init)(void);
 
 	void		(*kgdb_map_scc)(void);
+#endif /* CONFIG_PPC32 */
 
 	/*
 	 * optional PCI "hooks"
@@ -157,8 +158,6 @@ struct machdep_calls {
 	/* Called at then very end of pcibios_init() */
 	void (*pcibios_after_init)(void);
 
-#endif /* CONFIG_PPC32 */
-
 	/* Called in indirect_* to avoid touching devices */
 	int (*pci_exclude_device)(struct pci_controller *, unsigned char, unsigned char);
 
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 9d8c10d55407..fba7fe6e4a50 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -68,6 +68,10 @@ static int __init pcibios_init(void)
 
 	printk(KERN_DEBUG "PCI: Probing PCI hardware done\n");
 
+	/* Call machine dependent post-init code */
+	if (ppc_md.pcibios_after_init)
+		ppc_md.pcibios_after_init();
+
 	return 0;
 }
 
-- 
2.20.1
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