From: Thiago Jung Bauermann <bauerman@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Alexey Kardashevskiy <aik@linux.ibm.com>,
Anshuman Khandual <anshuman.linux@gmail.com>,
Alexey Kardashevskiy <aik@ozlabs.ru>,
Mike Anderson <andmike@linux.ibm.com>,
Ram Pai <linuxram@us.ibm.com>,
linux-kernel@vger.kernel.org,
Claudio Carvalho <cclaudio@linux.ibm.com>,
Paul Mackerras <paulus@samba.org>, Christoph Hellwig <hch@lst.de>,
Thiago Jung Bauermann <bauerman@linux.ibm.com>
Subject: [PATCH v3 07/16] powerpc/pseries: Add and use LPPACA_SIZE constant
Date: Tue, 6 Aug 2019 02:22:28 -0300 [thread overview]
Message-ID: <20190806052237.12525-8-bauerman@linux.ibm.com> (raw)
In-Reply-To: <20190806052237.12525-1-bauerman@linux.ibm.com>
Helps document what the hard-coded number means.
Also take the opportunity to fix an #endif comment.
Suggested-by: Alexey Kardashevskiy <aik@linux.ibm.com>
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
---
arch/powerpc/kernel/paca.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index e3ad8aa4730d..612fc87ef785 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -52,6 +52,8 @@ static void *__init alloc_paca_data(unsigned long size, unsigned long align,
#ifdef CONFIG_PPC_PSERIES
+#define LPPACA_SIZE 0x400
+
/*
* See asm/lppaca.h for more detail.
*
@@ -65,7 +67,7 @@ static inline void init_lppaca(struct lppaca *lppaca)
*lppaca = (struct lppaca) {
.desc = cpu_to_be32(0xd397d781), /* "LpPa" */
- .size = cpu_to_be16(0x400),
+ .size = cpu_to_be16(LPPACA_SIZE),
.fpregs_in_use = 1,
.slb_count = cpu_to_be16(64),
.vmxregs_in_use = 0,
@@ -75,19 +77,18 @@ static inline void init_lppaca(struct lppaca *lppaca)
static struct lppaca * __init new_lppaca(int cpu, unsigned long limit)
{
struct lppaca *lp;
- size_t size = 0x400;
- BUILD_BUG_ON(size < sizeof(struct lppaca));
+ BUILD_BUG_ON(sizeof(struct lppaca) > LPPACA_SIZE);
if (early_cpu_has_feature(CPU_FTR_HVMODE))
return NULL;
- lp = alloc_paca_data(size, 0x400, limit, cpu);
+ lp = alloc_paca_data(LPPACA_SIZE, 0x400, limit, cpu);
init_lppaca(lp);
return lp;
}
-#endif /* CONFIG_PPC_BOOK3S */
+#endif /* CONFIG_PPC_PSERIES */
#ifdef CONFIG_PPC_BOOK3S_64
next prev parent reply other threads:[~2019-08-06 5:39 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-06 5:22 [PATCH v3 00/16] Secure Virtual Machine Enablement Thiago Jung Bauermann
2019-08-06 5:22 ` [PATCH v3 01/16] powerpc/kernel: Add ucall_norets() ultravisor call handler Thiago Jung Bauermann
2019-08-06 5:22 ` [PATCH v3 02/16] powerpc/pseries: Introduce option to build secure virtual machines Thiago Jung Bauermann
2019-08-06 5:22 ` [RFC PATCH v3 03/16] powerpc: Add support for adding an ESM blob to the zImage wrapper Thiago Jung Bauermann
2019-08-06 5:22 ` [PATCH v3 04/16] powerpc/prom_init: Add the ESM call to prom_init Thiago Jung Bauermann
2019-08-06 5:22 ` [PATCH v3 05/16] powerpc/pseries/svm: Add helpers for UV_SHARE_PAGE and UV_UNSHARE_PAGE Thiago Jung Bauermann
2019-08-06 5:22 ` [PATCH v3 06/16] powerpc: Introduce the MSR_S bit Thiago Jung Bauermann
2019-08-06 5:22 ` Thiago Jung Bauermann [this message]
2019-08-06 5:22 ` [PATCH v3 08/16] powerpc/pseries/svm: Use shared memory for LPPACA structures Thiago Jung Bauermann
2019-08-12 12:36 ` Michael Ellerman
2019-08-12 21:43 ` Thiago Jung Bauermann
2019-08-14 10:54 ` Michael Ellerman
2019-08-16 0:52 ` Thiago Jung Bauermann
2019-08-06 5:22 ` [PATCH v3 09/16] powerpc/pseries/svm: Use shared memory for Debug Trace Log (DTL) Thiago Jung Bauermann
2019-08-06 5:22 ` [PATCH v3 10/16] powerpc/pseries/svm: Unshare all pages before kexecing a new kernel Thiago Jung Bauermann
2019-08-06 5:22 ` [PATCH v3 11/16] powerpc/pseries/svm: Export guest SVM status to user space via sysfs Thiago Jung Bauermann
2019-08-12 13:03 ` Michael Ellerman
2019-08-12 23:21 ` Thiago Jung Bauermann
2019-08-15 6:30 ` Michael Ellerman
2019-08-16 0:49 ` Thiago Jung Bauermann
2019-08-06 5:22 ` [PATCH v3 12/16] powerpc/pseries/svm: Disable doorbells in SVM guests Thiago Jung Bauermann
2019-08-06 5:22 ` [PATCH v3 13/16] powerpc/pseries/iommu: Don't use dma_iommu_ops on secure guests Thiago Jung Bauermann
2019-08-06 5:48 ` Christoph Hellwig
2019-08-07 1:37 ` Thiago Jung Bauermann
2019-08-06 5:22 ` [PATCH v3 14/16] powerpc/pseries/svm: Force SWIOTLB for " Thiago Jung Bauermann
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