Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 132 insertions, 0 deletions

diff --git a/include/asm-ppc64/lppaca.h b/include/asm-ppc64/lppaca.h
new file mode 100644
index 00000000000..70766b5f26c
--- /dev/null
+++ b/include/asm-ppc64/lppaca.h
@@ -0,0 +1,132 @@
+/*
+ * lppaca.h
+ * 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 _ASM_LPPACA_H
+#define _ASM_LPPACA_H
+
+//=============================================================================
+//
+//	This control block contains the data that is shared between the
+//	hypervisor (PLIC) and the OS.
+//
+//
+//----------------------------------------------------------------------------
+#include <asm/types.h>
+
+struct lppaca
+{
+//=============================================================================
+// CACHE_LINE_1 0x0000 - 0x007F Contains read-only data
+// NOTE: The xDynXyz fields are fields that will be dynamically changed by
+// PLIC when preparing to bring a processor online or when dispatching a
+// virtual processor!
+//=============================================================================
+	u32	desc;			// Eye catcher 0xD397D781	x00-x03
+	u16	size;			// Size of this struct		x04-x05
+	u16	reserved1;		// Reserved			x06-x07
+	u16	reserved2:14;		// Reserved			x08-x09
+	u8	shared_proc:1;		// Shared processor indicator	...
+	u8	secondary_thread:1;	// Secondary thread indicator	...
+	volatile u8 dyn_proc_status:8;	// Dynamic Status of this proc	x0A-x0A
+	u8	secondary_thread_count;	// Secondary thread count	x0B-x0B
+	volatile u16 dyn_hv_phys_proc_index;// Dynamic HV Physical Proc Index0C-x0D
+	volatile u16 dyn_hv_log_proc_index;// Dynamic HV Logical Proc Indexx0E-x0F
+	u32	decr_val;   		// Value for Decr programming 	x10-x13
+	u32	pmc_val;       		// Value for PMC regs         	x14-x17
+	volatile u32 dyn_hw_node_id;	// Dynamic Hardware Node id	x18-x1B
+	volatile u32 dyn_hw_proc_id;	// Dynamic Hardware Proc Id	x1C-x1F
+	volatile u32 dyn_pir;		// Dynamic ProcIdReg value	x20-x23
+	u32	dsei_data;           	// DSEI data                  	x24-x27
+	u64	sprg3;               	// SPRG3 value                	x28-x2F
+	u8	reserved3[80];		// Reserved			x30-x7F
+
+//=============================================================================
+// CACHE_LINE_2 0x0080 - 0x00FF Contains local read-write data
+//=============================================================================
+	// This Dword contains a byte for each type of interrupt that can occur.
+	// The IPI is a count while the others are just a binary 1 or 0.
+	union {
+		u64	any_int;
+		struct {
+			u16	reserved;	// Reserved - cleared by #mpasmbl
+			u8	xirr_int;	// Indicates xXirrValue is valid or Immed IO
+			u8	ipi_cnt;	// IPI Count
+			u8	decr_int;	// DECR interrupt occurred
+			u8	pdc_int;	// PDC interrupt occurred
+			u8	quantum_int;	// Interrupt quantum reached
+			u8	old_plic_deferred_ext_int;	// Old PLIC has a deferred XIRR pending
+		} fields;
+	} int_dword;
+
+	// Whenever any fields in this Dword are set then PLIC will defer the
+	// processing of external interrupts.  Note that PLIC will store the
+	// XIRR directly into the xXirrValue field so that another XIRR will
+	// not be presented until this one clears.  The layout of the low
+	// 4-bytes of this Dword is upto SLIC - PLIC just checks whether the
+	// entire Dword is zero or not.  A non-zero value in the low order
+	// 2-bytes will result in SLIC being granted the highest thread
+	// priority upon return.  A 0 will return to SLIC as medium priority.
+	u64	plic_defer_ints_area;	// Entire Dword
+
+	// Used to pass the real SRR0/1 from PLIC to SLIC as well as to
+	// pass the target SRR0/1 from SLIC to PLIC on a SetAsrAndRfid.
+	u64	saved_srr0;		// Saved SRR0                   x10-x17
+	u64	saved_srr1;		// Saved SRR1                   x18-x1F
+
+	// Used to pass parms from the OS to PLIC for SetAsrAndRfid
+	u64	saved_gpr3;		// Saved GPR3                   x20-x27
+	u64	saved_gpr4;		// Saved GPR4                   x28-x2F
+	u64	saved_gpr5;		// Saved GPR5                   x30-x37
+
+	u8	reserved4;		// Reserved			x38-x38
+	u8	cpuctls_task_attrs;	// Task attributes for cpuctls  x39-x39
+	u8	fpregs_in_use;		// FP regs in use               x3A-x3A
+	u8	pmcregs_in_use;		// PMC regs in use              x3B-x3B
+	volatile u32 saved_decr;	// Saved Decr Value             x3C-x3F
+	volatile u64 emulated_time_base;// Emulated TB for this thread  x40-x47
+	volatile u64 cur_plic_latency;	// Unaccounted PLIC latency     x48-x4F
+	u64	tot_plic_latency;	// Accumulated PLIC latency     x50-x57
+	u64	wait_state_cycles;	// Wait cycles for this proc    x58-x5F
+	u64	end_of_quantum;		// TB at end of quantum         x60-x67
+	u64	pdc_saved_sprg1;	// Saved SPRG1 for PMC int      x68-x6F
+	u64	pdc_saved_srr0;		// Saved SRR0 for PMC int       x70-x77
+	volatile u32 virtual_decr;	// Virtual DECR for shared procsx78-x7B
+	u16	slb_count;		// # of SLBs to maintain        x7C-x7D
+	u8	idle;			// Indicate OS is idle          x7E
+	u8	reserved5;		// Reserved                     x7F
+
+
+//=============================================================================
+// CACHE_LINE_3 0x0100 - 0x007F: This line is shared with other processors
+//=============================================================================
+	// This is the yield_count.  An "odd" value (low bit on) means that
+	// the processor is yielded (either because of an OS yield or a PLIC
+	// preempt).  An even value implies that the processor is currently
+	// executing.
+	// NOTE: This value will ALWAYS be zero for dedicated processors and
+	// will NEVER be zero for shared processors (ie, initialized to a 1).
+	volatile u32 yield_count;	// PLIC increments each dispatchx00-x03
+	u8	reserved6[124];		// Reserved                     x04-x7F
+
+//=============================================================================
+// CACHE_LINE_4-5 0x0100 - 0x01FF Contains PMC interrupt data
+//=============================================================================
+	u8	pmc_save_area[256];	// PMC interrupt Area           x00-xFF
+};
+
+#endif /* _ASM_LPPACA_H */