1 files changed, 80 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/iseries/it_lp_naca.h b/arch/powerpc/platforms/iseries/it_lp_naca.h
new file mode 100644
index 000000000000..9bbf58986819
--- /dev/null
+++ b/arch/powerpc/platforms/iseries/it_lp_naca.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2001  Mike Corrigan IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+#ifndef _PLATFORMS_ISERIES_IT_LP_NACA_H
+#define _PLATFORMS_ISERIES_IT_LP_NACA_H
+
+#include <linux/types.h>
+
+/*
+ *      This control block contains the data that is shared between the
+ *      hypervisor (PLIC) and the OS.
+ */
+
+struct ItLpNaca {
+// CACHE_LINE_1 0x0000 - 0x007F Contains read-only data
+        u32     xDesc;                  // Eye catcher                  x00-x03
+        u16     xSize;                  // Size of this class           x04-x05
+        u16     xIntHdlrOffset;         // Offset to IntHdlr array      x06-x07
+        u8      xMaxIntHdlrEntries;     // Number of entries in array   x08-x08
+        u8      xPrimaryLpIndex;        // LP Index of Primary          x09-x09
+        u8      xServiceLpIndex;        // LP Ind of Service Focal Pointx0A-x0A
+        u8      xLpIndex;               // LP Index                     x0B-x0B
+        u16     xMaxLpQueues;           // Number of allocated queues   x0C-x0D
+        u16     xLpQueueOffset;         // Offset to start of LP queues x0E-x0F
+        u8      xPirEnvironMode;        // Piranha or hardware          x10-x10
+        u8      xPirConsoleMode;        // Piranha console indicator    x11-x11
+        u8      xPirDasdMode;           // Piranha dasd indicator       x12-x12
+        u8      xRsvd1_0[5];            // Reserved for Piranha related x13-x17
+        u8      flags;                  // flags, see below             x18-x1F
+        u8      xSpVpdFormat;           // VPD areas are in CSP format  ...
+        u8      xIntProcRatio;          // Ratio of int procs to procs  ...
+        u8      xRsvd1_2[5];            // Reserved                     ...
+        u16     xRsvd1_3;               // Reserved                     x20-x21
+        u16     xPlicVrmIndex;          // VRM index of PLIC            x22-x23
+        u16     xMinSupportedSlicVrmInd;// Min supported OS VRM index   x24-x25
+        u16     xMinCompatableSlicVrmInd;// Min compatible OS VRM index x26-x27
+        u64     xLoadAreaAddr;          // ER address of load area      x28-x2F
+        u32     xLoadAreaChunks;        // Chunks for the load area     x30-x33
+        u32     xPaseSysCallCRMask;     // Mask used to test CR before  x34-x37
+                                        // doing an ASR switch on PASE
+                                        // system call.
+        u64     xSlicSegmentTablePtr;   // Pointer to Slic seg table.   x38-x3f
+        u8      xRsvd1_4[64];           //                              x40-x7F
+
+// CACHE_LINE_2 0x0080 - 0x00FF Contains local read-write data
+        u8      xRsvd2_0[128];          // Reserved                     x00-x7F
+
+// CACHE_LINE_3-6 0x0100 - 0x02FF Contains LP Queue indicators
+// NB: Padding required to keep xInterrruptHdlr at x300 which is required
+// for v4r4 PLIC.
+        u8      xOldLpQueue[128];       // LP Queue needed for v4r4     100-17F
+        u8      xRsvd3_0[384];          // Reserved                     180-2FF
+
+// CACHE_LINE_7-8 0x0300 - 0x03FF Contains the address of the OS interrupt
+//  handlers
+        u64     xInterruptHdlr[32];     // Interrupt handlers           300-x3FF
+};
+
+extern struct ItLpNaca          itLpNaca;
+
+#define ITLPNACA_LPAR           0x80    /* Is LPAR installed on the system */
+#define ITLPNACA_PARTITIONED    0x40    /* Is the system partitioned */
+#define ITLPNACA_HWSYNCEDTBS    0x20    /* Hardware synced TBs */
+#define ITLPNACA_HMTINT         0x10    /* Utilize MHT for interrupts */
+
+#endif /* _PLATFORMS_ISERIES_IT_LP_NACA_H */