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-rw-r--r--arch/powerpc/include/asm/prom.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h
index 99c92d5363e..bc2da154f68 100644
--- a/arch/powerpc/include/asm/prom.h
+++ b/arch/powerpc/include/asm/prom.h
@@ -74,6 +74,75 @@ struct of_drconf_cell {
#define DRCONF_MEM_AI_INVALID 0x00000040
#define DRCONF_MEM_RESERVED 0x00000080
+/*
+ * 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
+ * These bits are also used in firmware_has_feature() to validate
+ * the capabilities reported for vector 5 in the device tree so we
+ * encode the vector index in the define and use the OV5_FEAT()
+ * and OV5_INDX() macros to extract the desired information.
+ */
+#define OV5_FEAT(x) ((x) & 0xff)
+#define OV5_INDX(x) ((x) >> 8)
+#define OV5_LPAR 0x0280 /* logical partitioning supported */
+#define OV5_SPLPAR 0x0240 /* shared-processor LPAR supported */
+/* ibm,dynamic-reconfiguration-memory property supported */
+#define OV5_DRCONF_MEMORY 0x0220
+#define OV5_LARGE_PAGES 0x0210 /* large pages supported */
+#define OV5_DONATE_DEDICATE_CPU 0x0202 /* donate dedicated CPU support */
+#define OV5_MSI 0x0201 /* PCIe/MSI support */
+#define OV5_CMO 0x0480 /* Cooperative Memory Overcommitment */
+#define OV5_XCMO 0x0440 /* Page Coalescing */
+#define OV5_TYPE1_AFFINITY 0x0580 /* Type 1 NUMA affinity */
+#define OV5_PRRN 0x0540 /* Platform Resource Reassignment */
+#define OV5_PFO_HW_RNG 0x0E80 /* PFO Random Number Generator */
+#define OV5_PFO_HW_842 0x0E40 /* PFO Compression Accelerator */
+#define OV5_PFO_HW_ENCR 0x0E20 /* PFO Encryption Accelerator */
+#define OV5_SUB_PROCESSORS 0x0F01 /* 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[];
+
/* 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