From: Bharata B Rao <bharata@linux.vnet.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: nfont@linux.vnet.ibm.com, aneesh.kumar@linux.vnet.ibm.com,
mpe@ellerman.id.au, david@gibson.dropbear.id.au, anton@samba.org,
Bharata B Rao <bharata@linux.vnet.ibm.com>
Subject: [RFC FIX v1 1/2] powerpc: Discover radix availability before scanning the memory nodes
Date: Fri, 5 Jan 2018 16:35:20 +0530 [thread overview]
Message-ID: <1515150321-24894-2-git-send-email-bharata@linux.vnet.ibm.com> (raw)
In-Reply-To: <1515150321-24894-1-git-send-email-bharata@linux.vnet.ibm.com>
Currently device tree nodes for memory are scanned before the
radix feature is discovered in mmu_early_init_devtree(). Move this
routine ahead of scanning memory nodes so that we know if the
guest is radix or not when scanning ibm,dynamic-reconfiguration-memory.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
---
arch/powerpc/kernel/prom.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index b15bae2..079d893 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -722,6 +722,8 @@ void __init early_init_devtree(void *params)
*/
of_scan_flat_dt(early_init_dt_scan_chosen_ppc, boot_command_line);
+ mmu_early_init_devtree();
+
/* Scan memory nodes and rebuild MEMBLOCKs */
of_scan_flat_dt(early_init_dt_scan_root, NULL);
of_scan_flat_dt(early_init_dt_scan_memory_ppc, NULL);
@@ -783,8 +785,6 @@ void __init early_init_devtree(void *params)
spinning_secondaries = boot_cpu_count - 1;
#endif
- mmu_early_init_devtree();
-
#ifdef CONFIG_PPC_POWERNV
/* Scan and build the list of machine check recoverable ranges */
of_scan_flat_dt(early_init_dt_scan_recoverable_ranges, NULL);
--
2.7.4
next prev parent reply other threads:[~2018-01-05 11:05 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-05 11:05 [RFC FIX v1 0/2] powerpc: Fix memory unplug failure for radix guests Bharata B Rao
2018-01-05 11:05 ` Bharata B Rao [this message]
2018-01-05 11:16 ` [RFC FIX v1 1/2] powerpc: Discover radix availability before scanning the memory nodes Aneesh Kumar K.V
2018-01-05 23:28 ` Michael Ellerman
2018-01-08 9:16 ` Bharata B Rao
2018-01-05 11:05 ` [RFC FIX v1 2/2] powerpc: Fix memory unplug failure on radix guest Bharata B Rao
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