1 files changed, 69 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h
index 99c92d5363e4..bc2da154f68b 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