lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

powerpc: Move include files to arch/powerpc/include/asm

Browse Source 
from include/asm-powerpc.  This is the result of a

mkdir arch/powerpc/include/asm
git mv include/asm-powerpc/* arch/powerpc/include/asm

Followed by a few documentation/comment fixups and a couple of places
where <asm-powepc/...> was being used explicitly.  Of the latter only
one was outside the arch code and it is a driver only built for powerpc.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Stephen Rothwell
2008-08-01 15:20:30 +10:00
committed by Paul Mackerras
parent 2b12a4c524
commit b8b572e101
269 changed files with 13 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

78
arch/powerpc/include/asm/iseries/it_lp_queue.h Normal file
View File

@@ -0,0 +1,78 @@
/*
* 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_POWERPC_ISERIES_IT_LP_QUEUE_H
#define _ASM_POWERPC_ISERIES_IT_LP_QUEUE_H
/*
* This control block defines the simple LP queue structure that is
* shared between the hypervisor (PLIC) and the OS in order to send
* events to an LP.
*/
#include <asm/types.h>
#include <asm/ptrace.h>
#define IT_LP_MAX_QUEUES 8
#define IT_LP_NOT_USED 0 /* Queue will not be used by PLIC */
#define IT_LP_DEDICATED_IO 1 /* Queue dedicated to IO processor specified */
#define IT_LP_DEDICATED_LP 2 /* Queue dedicated to LP specified */
#define IT_LP_SHARED 3 /* Queue shared for both IO and LP */
#define IT_LP_EVENT_STACK_SIZE 4096
#define IT_LP_EVENT_MAX_SIZE 256
#define IT_LP_EVENT_ALIGN 64
struct hvlpevent_queue {
/*
* The hq_current_event is the pointer to the next event stack entry
* that will become valid. The OS must peek at this entry to determine
* if it is valid. PLIC will set the valid indicator as the very last
* store into that entry.
*
* When the OS has completed processing of the event then it will mark
* the event as invalid so that PLIC knows it can store into that event
* location again.
*
* If the event stack fills and there are overflow events, then PLIC
* will set the hq_overflow_pending flag in which case the OS will
* have to fetch the additional LP events once they have drained the
* event stack.
*
* The first 16-bytes are known by both the OS and PLIC. The remainder
* of the cache line is for use by the OS.
*/
u8 hq_overflow_pending; /* 0x00 Overflow events are pending */
u8 hq_status; /* 0x01 DedicatedIo or DedicatedLp or NotUsed */
u16 hq_proc_index; /* 0x02 Logical Proc Index for correlation */
u8 hq_reserved1[12]; /* 0x04 */
char *hq_current_event; /* 0x10 */
char *hq_last_event; /* 0x18 */
char *hq_event_stack; /* 0x20 */
u8 hq_index; /* 0x28 unique sequential index. */
u8 hq_reserved2[3]; /* 0x29-2b */
spinlock_t hq_lock;
};
extern struct hvlpevent_queue hvlpevent_queue;
extern int hvlpevent_is_pending(void);
extern void process_hvlpevents(void);
extern void setup_hvlpevent_queue(void);
#endif /* _ASM_POWERPC_ISERIES_IT_LP_QUEUE_H */