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authorNathan Fontenot <nfont@linux.vnet.ibm.com>2013-04-24 07:53:10 +0200
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-04-26 08:08:21 +0200
commit530b5e1475e5bab5d5e5d03438004ad609068146 (patch)
tree671a1086b47efab3383e847c67452a4eba8d8fe8 /arch/powerpc/kernel/prom_init.c
parentpowerpc/pseries: Add PRRN RTAS event handler (diff)
downloadlinux-530b5e1475e5bab5d5e5d03438004ad609068146.tar.xz
linux-530b5e1475e5bab5d5e5d03438004ad609068146.zip
powerpc/pseries: Move architecture vector definitions to prom.h
As part of handling of PRRN events we need to check vector 5 of the architecture vector bits reported in the device tree to ensure PRRN event handling is enabled. To do this firmware_has_feature() is updated (in a subsequent patch) to make this check vector 5 bits. To avoid having to re-define bits in the architecture vector the bit definitions are moved to prom.h. Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/prom_init.c')
-rw-r--r--arch/powerpc/kernel/prom_init.c75
1 files changed, 6 insertions, 69 deletions
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 13f8d168b3f1..4a9e50cf8ab9 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -627,16 +627,11 @@ static void __init early_cmdline_parse(void)
#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
+ * architecture 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 @@ static void __init early_cmdline_parse(void)
#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 */