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From: Nathan Fontenot <nfont@linux.vnet.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v2 3/11] Move architecture vector definitions to prom.h
Date: Mon, 25 Mar 2013 13:53:26 -0500	[thread overview]
Message-ID: <51509D26.1040401@linux.vnet.ibm.com> (raw)
In-Reply-To: <51509AE8.8070803@linux.vnet.ibm.com>

As part of handling of hndling PRRN events we will need to check the
vector 5 portion of the architectire bits reported in the device tree
to ensure that PRRN event handling is enabled. In order to do this a
new platform_has_feature call is introduced (in a subsequent patch) to
make this check.  To avoid having to re-define bits in the architecture
vector the bits are moved to prom.h.

This patch is the first step in implementing the platform_has_feature
call by simply moving the bit definitions from prom_init.c to asm/prom.h.
There are no functional.

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>

---
 arch/powerpc/include/asm/prom.h |   73 ++++++++++++++++++++++++++++++++++++++
 arch/powerpc/kernel/prom_init.c |   75 +++-------------------------------------
 2 files changed, 79 insertions(+), 69 deletions(-)

Index: powerpc/arch/powerpc/include/asm/prom.h
===================================================================
--- powerpc.orig/arch/powerpc/include/asm/prom.h	2013-03-20 08:24:13.000000000 -0500
+++ powerpc/arch/powerpc/include/asm/prom.h	2013-03-20 08:52:59.000000000 -0500
@@ -74,6 +74,79 @@
 #define DRCONF_MEM_AI_INVALID	0x00000040
 #define DRCONF_MEM_RESERVED	0x00000080
 
+#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_POWERNV)
+/*
+ * There are two methods for telling firmware what our capabilities are.
+ * Newer machines have an "ibm,client-architecture-support" method on the
+ * root node.  For older machines, we have to call the "process-elf-header"
+ * method in the /packages/elf-loader node, passing it a fake 32-bit
+ * ELF header containing a couple of PT_NOTE sections that contain
+ * structures that contain various information.
+ */
+
+/* New method - extensible architecture description vector. */
+
+/* Option vector bits - generic bits in byte 1 */
+#define OV_IGNORE		0x80	/* ignore this vector */
+#define OV_CESSATION_POLICY	0x40	/* halt if unsupported option present*/
+
+/* Option vector 1: processor architectures supported */
+#define OV1_PPC_2_00		0x80	/* set if we support PowerPC 2.00 */
+#define OV1_PPC_2_01		0x40	/* set if we support PowerPC 2.01 */
+#define OV1_PPC_2_02		0x20	/* set if we support PowerPC 2.02 */
+#define OV1_PPC_2_03		0x10	/* set if we support PowerPC 2.03 */
+#define OV1_PPC_2_04		0x08	/* set if we support PowerPC 2.04 */
+#define OV1_PPC_2_05		0x04	/* set if we support PowerPC 2.05 */
+#define OV1_PPC_2_06		0x02	/* set if we support PowerPC 2.06 */
+#define OV1_PPC_2_07		0x01	/* set if we support PowerPC 2.07 */
+
+/* Option vector 2: Open Firmware options supported */
+#define OV2_REAL_MODE		0x20	/* set if we want OF in real mode */
+
+/* Option vector 3: processor options supported */
+#define OV3_FP			0x80	/* floating point */
+#define OV3_VMX			0x40	/* VMX/Altivec */
+#define OV3_DFP			0x20	/* decimal FP */
+
+/* Option vector 4: IBM PAPR implementation */
+#define OV4_MIN_ENT_CAP		0x01	/* minimum VP entitled capacity */
+
+/* Option vector 5: PAPR/OF options supported */
+#define OV5_LPAR		0x80	/* logical partitioning supported */
+#define OV5_SPLPAR		0x40	/* shared-processor LPAR supported */
+/* ibm,dynamic-reconfiguration-memory property supported */
+#define OV5_DRCONF_MEMORY	0x20
+#define OV5_LARGE_PAGES		0x10	/* large pages supported */
+#define OV5_DONATE_DEDICATE_CPU	0x02	/* donate dedicated CPU support */
+/* PCIe/MSI support.  Without MSI full PCIe is not supported */
+#ifdef CONFIG_PCI_MSI
+#define OV5_MSI			0x01	/* PCIe/MSI support */
+#else
+#define OV5_MSI			0x00
+#endif /* CONFIG_PCI_MSI */
+#ifdef CONFIG_PPC_SMLPAR
+#define OV5_CMO			0x80	/* Cooperative Memory Overcommitment */
+#define OV5_XCMO		0x40	/* Page Coalescing */
+#else
+#define OV5_CMO			0x00
+#define OV5_XCMO		0x00
+#endif
+#define OV5_TYPE1_AFFINITY	0x80	/* Type 1 NUMA affinity */
+#define OV5_PFO_HW_RNG		0x80	/* PFO Random Number Generator */
+#define OV5_PFO_HW_842		0x40	/* PFO Compression Accelerator */
+#define OV5_PFO_HW_ENCR		0x20	/* PFO Encryption Accelerator */
+#define OV5_SUB_PROCESSORS	0x01	/* 1,2,or 4 Sub-Processors supported */
+
+/* Option Vector 6: IBM PAPR hints */
+#define OV6_LINUX		0x02	/* Linux is our OS */
+
+/*
+ * The architecture vector has an array of PVR mask/value pairs,
+ * followed by # option vectors - 1, followed by the option vectors.
+ */
+extern unsigned char ibm_architecture_vec[];
+#endif
+
 /* These includes are put at the bottom because they may contain things
  * that are overridden by this file.  Ideally they shouldn't be included
  * by this file, but there are a bunch of .c files that currently depend
Index: powerpc/arch/powerpc/kernel/prom_init.c
===================================================================
--- powerpc.orig/arch/powerpc/kernel/prom_init.c	2013-03-20 08:24:13.000000000 -0500
+++ powerpc/arch/powerpc/kernel/prom_init.c	2013-03-20 08:52:59.000000000 -0500
@@ -627,16 +627,11 @@
 
 #if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_POWERNV)
 /*
- * There are two methods for telling firmware what our capabilities are.
- * Newer machines have an "ibm,client-architecture-support" method on the
- * root node.  For older machines, we have to call the "process-elf-header"
- * method in the /packages/elf-loader node, passing it a fake 32-bit
- * ELF header containing a couple of PT_NOTE sections that contain
- * structures that contain various information.
- */
-
-/*
- * New method - extensible architecture description vector.
+ * The architecture vector has an array of PVR mask/value pairs,
+ * followed by # option vectors - 1, followed by the option vectors.
+ *
+ * See prom.h for the definition of the bits specified in the
+ * achitecture vector.
  *
  * Because the description vector contains a mix of byte and word
  * values, we declare it as an unsigned char array, and use this
@@ -645,65 +640,7 @@
 #define W(x)	((x) >> 24) & 0xff, ((x) >> 16) & 0xff, \
 		((x) >> 8) & 0xff, (x) & 0xff
 
-/* Option vector bits - generic bits in byte 1 */
-#define OV_IGNORE		0x80	/* ignore this vector */
-#define OV_CESSATION_POLICY	0x40	/* halt if unsupported option present*/
-
-/* Option vector 1: processor architectures supported */
-#define OV1_PPC_2_00		0x80	/* set if we support PowerPC 2.00 */
-#define OV1_PPC_2_01		0x40	/* set if we support PowerPC 2.01 */
-#define OV1_PPC_2_02		0x20	/* set if we support PowerPC 2.02 */
-#define OV1_PPC_2_03		0x10	/* set if we support PowerPC 2.03 */
-#define OV1_PPC_2_04		0x08	/* set if we support PowerPC 2.04 */
-#define OV1_PPC_2_05		0x04	/* set if we support PowerPC 2.05 */
-#define OV1_PPC_2_06		0x02	/* set if we support PowerPC 2.06 */
-#define OV1_PPC_2_07		0x01	/* set if we support PowerPC 2.07 */
-
-/* Option vector 2: Open Firmware options supported */
-#define OV2_REAL_MODE		0x20	/* set if we want OF in real mode */
-
-/* Option vector 3: processor options supported */
-#define OV3_FP			0x80	/* floating point */
-#define OV3_VMX			0x40	/* VMX/Altivec */
-#define OV3_DFP			0x20	/* decimal FP */
-
-/* Option vector 4: IBM PAPR implementation */
-#define OV4_MIN_ENT_CAP		0x01	/* minimum VP entitled capacity */
-
-/* Option vector 5: PAPR/OF options supported */
-#define OV5_LPAR		0x80	/* logical partitioning supported */
-#define OV5_SPLPAR		0x40	/* shared-processor LPAR supported */
-/* ibm,dynamic-reconfiguration-memory property supported */
-#define OV5_DRCONF_MEMORY	0x20
-#define OV5_LARGE_PAGES		0x10	/* large pages supported */
-#define OV5_DONATE_DEDICATE_CPU 0x02	/* donate dedicated CPU support */
-/* PCIe/MSI support.  Without MSI full PCIe is not supported */
-#ifdef CONFIG_PCI_MSI
-#define OV5_MSI			0x01	/* PCIe/MSI support */
-#else
-#define OV5_MSI			0x00
-#endif /* CONFIG_PCI_MSI */
-#ifdef CONFIG_PPC_SMLPAR
-#define OV5_CMO			0x80	/* Cooperative Memory Overcommitment */
-#define OV5_XCMO			0x40	/* Page Coalescing */
-#else
-#define OV5_CMO			0x00
-#define OV5_XCMO			0x00
-#endif
-#define OV5_TYPE1_AFFINITY	0x80	/* Type 1 NUMA affinity */
-#define OV5_PFO_HW_RNG		0x80	/* PFO Random Number Generator */
-#define OV5_PFO_HW_842		0x40	/* PFO Compression Accelerator */
-#define OV5_PFO_HW_ENCR		0x20	/* PFO Encryption Accelerator */
-#define OV5_SUB_PROCESSORS	0x01    /* 1,2,or 4 Sub-Processors supported */
-
-/* Option Vector 6: IBM PAPR hints */
-#define OV6_LINUX		0x02	/* Linux is our OS */
-
-/*
- * The architecture vector has an array of PVR mask/value pairs,
- * followed by # option vectors - 1, followed by the option vectors.
- */
-static unsigned char ibm_architecture_vec[] = {
+unsigned char ibm_architecture_vec[] = {
 	W(0xfffe0000), W(0x003a0000),	/* POWER5/POWER5+ */
 	W(0xffff0000), W(0x003e0000),	/* POWER6 */
 	W(0xffff0000), W(0x003f0000),	/* POWER7 */

  parent reply	other threads:[~2013-03-25 18:53 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-03-25 18:43 [PATCH v2 0/11] NUMA CPU Reconfiguration using PRRN Nathan Fontenot
2013-03-25 18:51 ` [PATCH v2 1/11] Expose pseries devicetree_update() Nathan Fontenot
2013-04-04  3:09   ` Paul Mackerras
2013-03-25 18:52 ` [PATCH v2 2/11] Add PRRN Event Handler Nathan Fontenot
2013-04-04  3:34   ` Paul Mackerras
2013-04-04  7:16     ` Benjamin Herrenschmidt
2013-04-05 15:43     ` Nathan Fontenot
2013-04-10  8:30   ` Michael Ellerman
2013-04-15 20:12     ` Nathan Fontenot
2013-03-25 18:53 ` Nathan Fontenot [this message]
2013-03-25 18:54 ` [PATCH v2 4/11] Update firmware_has_feature() to check architecture bits Nathan Fontenot
2013-04-04  4:19   ` Paul Mackerras
2013-03-25 18:56 ` [PATCH v2 5/11] Update numa.c to use updated firmware_has_feature() Nathan Fontenot
2013-04-04  4:20   ` Paul Mackerras
2013-03-25 18:57 ` [PATCH v2 6/11] Update CPU Maps Nathan Fontenot
2013-04-04  4:42   ` Paul Mackerras
2013-04-05 18:02     ` Nathan Fontenot
2013-03-25 18:58 ` [PATCH v2 7/11] Use stop machine to update cpu maps Nathan Fontenot
2013-04-04  4:46   ` Paul Mackerras
2013-04-05 18:22     ` Nathan Fontenot
2013-04-23  0:23       ` Benjamin Herrenschmidt
2013-03-25 18:59 ` [PATCH v2 8/11] Update numa cpu vdso info Nathan Fontenot
2013-03-25 19:00 ` [PATCH v2 9/11] Re-enable Virtual Private Home Node capabilities Nathan Fontenot
2013-03-25 19:01 ` [PATCH v2 10/11] Enable PRRN Nathan Fontenot
2013-03-25 19:02 ` [PATCH v2 11/11] Add /proc interface to control topology updates Nathan Fontenot
2013-04-10  6:59   ` Michael Ellerman

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