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From: Scott Wood <scottwood@freescale.com>
To: <linuxppc-dev@lists.ozlabs.org>
Cc: <kexec@lists.infradead.org>, Scott Wood <scottwood@freescale.com>
Subject: [PATCH v3 13/17] powerpc/book3e-64: Don't limit paca to 256 MiB
Date: Mon, 19 Oct 2015 17:10:18 -0500	[thread overview]
Message-ID: <1445292618-20418-1-git-send-email-scottwood@freescale.com> (raw)
In-Reply-To: <1444189702-17241-14-git-send-email-scottwood@freescale.com>

This limit only makes sense on book3s, and on book3e it can cause
problems with kdump if we don't have any memory under 256 MiB.

Signed-off-by: Scott Wood <scottwood@freescale.com>
---
v3: Fix book3s build error

 arch/powerpc/kernel/paca.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index 5a23b69..01ea0ed 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -204,14 +204,19 @@ static int __initdata paca_size;
 
 void __init allocate_pacas(void)
 {
-	int cpu, limit;
+	u64 limit;
+	int cpu;
 
+	limit = ppc64_rma_size;
+
+#ifdef CONFIG_PPC_BOOK3S_64
 	/*
 	 * We can't take SLB misses on the paca, and we want to access them
 	 * in real mode, so allocate them within the RMA and also within
 	 * the first segment.
 	 */
-	limit = min(0x10000000ULL, ppc64_rma_size);
+	limit = min(0x10000000ULL, limit);
+#endif
 
 	paca_size = PAGE_ALIGN(sizeof(struct paca_struct) * nr_cpu_ids);
 
-- 
2.1.4

  reply	other threads:[~2015-10-19 22:10 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-07  3:48 [PATCH v2 00/18] powerpc/fsl-book3e-64: kexec/kdump support Scott Wood
2015-10-07  3:48 ` [PATCH v2 01/18] powerpc/fsl-booke-64: Allow booting from the secondary thread Scott Wood
2015-10-07  3:48 ` [PATCH v2 02/18] powerpc/fsl-corenet: Disable coreint if kexec is enabled Scott Wood
2015-10-07  3:48 ` [PATCH v2 03/18] powerpc/85xx: Don't use generic timebase sync on 64-bit Scott Wood
2015-10-07  3:48 ` [PATCH v2 04/18] powerpc/fsl_pci: Don't set up inbound windows in kdump crash kernel Scott Wood
2015-10-07  3:48 ` [PATCH v2 05/18] powerpc/85xx: Load all early TLB entries at once Scott Wood
2015-10-07 14:00   ` Laurentiu Tudor
2015-10-07 19:57     ` Scott Wood
2015-10-07  3:48 ` [PATCH v2 06/18] powerpc/fsl-booke-64: Don't limit ppc64_rma_size to one TLB entry Scott Wood
2015-10-07  3:48 ` [PATCH v2 07/18] powerpc/85xx: Implement 64-bit kexec support Scott Wood
2015-10-07  3:48 ` [PATCH v2 08/18] powerpc/e6500: kexec: Handle hardware threads Scott Wood
2015-10-07  3:48 ` [PATCH v2 09/18] powerpc/book3e-64: rename interrupt_end_book3e with __end_interrupts Scott Wood
2015-10-07  3:48 ` [PATCH v2 10/18] powerpc/booke64: Fix args to copy_and_flush Scott Wood
2015-10-07  3:48 ` [PATCH v2 11/18] powerpc/book3e: support CONFIG_RELOCATABLE Scott Wood
2015-10-07  3:48 ` [PATCH v2 12/18] powerpc/book3e/kdump: Enable crash_kexec_wait_realmode Scott Wood
2015-10-07  3:48 ` [PATCH v2 13/18] powerpc/book3e-64: Don't limit paca to 256 MiB Scott Wood
2015-10-19 22:10   ` Scott Wood [this message]
2015-10-07  3:48 ` [PATCH v2 14/18] powerpc/book3e-64/kexec: create an identity TLB mapping Scott Wood
2015-10-07  3:48 ` [PATCH v2 15/18] powerpc/book3e-64/kexec: Enable SMP release Scott Wood
2015-10-07  3:48 ` [PATCH v2 16/18] powerpc/booke: Only use VIRT_PHYS_OFFSET on booke32 Scott Wood
2015-10-07  3:48 ` [PATCH v2 17/18] powerpc/book3e-64/kexec: Set "r4 = 0" when entering spinloop Scott Wood
2015-10-07  3:48 ` [PATCH v2 18/18] powerpc/book3e-64: Enable kexec Scott Wood

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