1124 lines
36 KiB
C
1124 lines
36 KiB
C
/**
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* \file drmP.h
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* Private header for Direct Rendering Manager
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*
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* \author Rickard E. (Rik) Faith <faith@valinux.com>
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* \author Gareth Hughes <gareth@valinux.com>
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*/
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/*
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* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
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* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef _DRM_P_H_
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#define _DRM_P_H_
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/* If you want the memory alloc debug functionality, change define below */
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/* #define DEBUG_MEMORY */
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#ifdef __KERNEL__
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#ifdef __alpha__
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/* add include of current.h so that "current" is defined
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* before static inline funcs in wait.h. Doing this so we
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* can build the DRM (part of PI DRI). 4/21/2000 S + B */
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#include <asm/current.h>
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#endif /* __alpha__ */
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/miscdevice.h>
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#include <linux/fs.h>
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#include <linux/proc_fs.h>
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#include <linux/init.h>
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#include <linux/file.h>
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#include <linux/pci.h>
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#include <linux/jiffies.h>
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#include <linux/smp_lock.h> /* For (un)lock_kernel */
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#include <linux/mm.h>
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#include <linux/cdev.h>
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#include <linux/mutex.h>
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#if defined(__alpha__) || defined(__powerpc__)
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#include <asm/pgtable.h> /* For pte_wrprotect */
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#endif
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#include <asm/io.h>
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#include <asm/mman.h>
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#include <asm/uaccess.h>
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#ifdef CONFIG_MTRR
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#include <asm/mtrr.h>
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#endif
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#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
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#include <linux/types.h>
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#include <linux/agp_backend.h>
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#endif
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#include <linux/workqueue.h>
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#include <linux/poll.h>
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#include <asm/pgalloc.h>
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#include "drm.h"
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#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
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#define __OS_HAS_MTRR (defined(CONFIG_MTRR))
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#include "drm_os_linux.h"
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#include "drm_hashtab.h"
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/***********************************************************************/
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/** \name DRM template customization defaults */
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/*@{*/
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/* driver capabilities and requirements mask */
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#define DRIVER_USE_AGP 0x1
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#define DRIVER_REQUIRE_AGP 0x2
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#define DRIVER_USE_MTRR 0x4
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#define DRIVER_PCI_DMA 0x8
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#define DRIVER_SG 0x10
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#define DRIVER_HAVE_DMA 0x20
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#define DRIVER_HAVE_IRQ 0x40
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#define DRIVER_IRQ_SHARED 0x80
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#define DRIVER_IRQ_VBL 0x100
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#define DRIVER_DMA_QUEUE 0x200
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#define DRIVER_FB_DMA 0x400
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/***********************************************************************/
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/** \name Begin the DRM... */
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/*@{*/
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#define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
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also include looping detection. */
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#define DRM_HASH_SIZE 16 /**< Size of key hash table. Must be power of 2. */
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#define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
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#define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
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#define DRM_LOOPING_LIMIT 5000000
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#define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
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#define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
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#define DRM_FLAG_DEBUG 0x01
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#define DRM_MEM_DMA 0
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#define DRM_MEM_SAREA 1
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#define DRM_MEM_DRIVER 2
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#define DRM_MEM_MAGIC 3
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#define DRM_MEM_IOCTLS 4
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#define DRM_MEM_MAPS 5
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#define DRM_MEM_VMAS 6
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#define DRM_MEM_BUFS 7
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#define DRM_MEM_SEGS 8
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#define DRM_MEM_PAGES 9
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#define DRM_MEM_FILES 10
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#define DRM_MEM_QUEUES 11
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#define DRM_MEM_CMDS 12
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#define DRM_MEM_MAPPINGS 13
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#define DRM_MEM_BUFLISTS 14
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#define DRM_MEM_AGPLISTS 15
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#define DRM_MEM_TOTALAGP 16
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#define DRM_MEM_BOUNDAGP 17
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#define DRM_MEM_CTXBITMAP 18
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#define DRM_MEM_STUB 19
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#define DRM_MEM_SGLISTS 20
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#define DRM_MEM_CTXLIST 21
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#define DRM_MEM_MM 22
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#define DRM_MEM_HASHTAB 23
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#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
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/*@}*/
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/***********************************************************************/
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/** \name Macros to make printk easier */
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/*@{*/
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/**
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* Error output.
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*
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* \param fmt printf() like format string.
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* \param arg arguments
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*/
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#define DRM_ERROR(fmt, arg...) \
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printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg)
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/**
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* Memory error output.
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*
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* \param area memory area where the error occurred.
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* \param fmt printf() like format string.
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* \param arg arguments
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*/
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#define DRM_MEM_ERROR(area, fmt, arg...) \
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printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \
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drm_mem_stats[area].name , ##arg)
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#define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
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/**
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* Debug output.
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*
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* \param fmt printf() like format string.
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* \param arg arguments
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*/
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#if DRM_DEBUG_CODE
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#define DRM_DEBUG(fmt, arg...) \
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do { \
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if ( drm_debug ) \
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printk(KERN_DEBUG \
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"[" DRM_NAME ":%s] " fmt , \
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__FUNCTION__ , ##arg); \
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} while (0)
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#else
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#define DRM_DEBUG(fmt, arg...) do { } while (0)
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#endif
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#define DRM_PROC_LIMIT (PAGE_SIZE-80)
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#define DRM_PROC_PRINT(fmt, arg...) \
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len += sprintf(&buf[len], fmt , ##arg); \
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if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
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#define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
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len += sprintf(&buf[len], fmt , ##arg); \
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if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
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/*@}*/
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/***********************************************************************/
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/** \name Internal types and structures */
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/*@{*/
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#define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
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#define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
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#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
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#define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
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#define DRM_IF_VERSION(maj, min) (maj << 16 | min)
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/**
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* Get the private SAREA mapping.
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*
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* \param _dev DRM device.
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* \param _ctx context number.
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* \param _map output mapping.
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*/
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#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
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(_map) = (_dev)->context_sareas[_ctx]; \
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} while(0)
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/**
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* Test that the hardware lock is held by the caller, returning otherwise.
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*
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* \param dev DRM device.
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* \param filp file pointer of the caller.
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*/
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#define LOCK_TEST_WITH_RETURN( dev, filp ) \
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do { \
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if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \
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dev->lock.filp != filp ) { \
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DRM_ERROR( "%s called without lock held\n", \
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__FUNCTION__ ); \
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return -EINVAL; \
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} \
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} while (0)
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/**
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* Copy and IOCTL return string to user space
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*/
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#define DRM_COPY( name, value ) \
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len = strlen( value ); \
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if ( len > name##_len ) len = name##_len; \
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name##_len = strlen( value ); \
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if ( len && name ) { \
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if ( copy_to_user( name, value, len ) ) \
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return -EFAULT; \
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}
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/**
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* Ioctl function type.
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*
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* \param inode device inode.
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* \param filp file pointer.
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* \param cmd command.
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* \param arg argument.
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*/
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typedef int drm_ioctl_t(struct inode *inode, struct file *filp,
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unsigned int cmd, unsigned long arg);
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typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
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unsigned long arg);
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#define DRM_AUTH 0x1
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#define DRM_MASTER 0x2
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#define DRM_ROOT_ONLY 0x4
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typedef struct drm_ioctl_desc {
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drm_ioctl_t *func;
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int flags;
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} drm_ioctl_desc_t;
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typedef struct drm_devstate {
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pid_t owner; /**< X server pid holding x_lock */
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} drm_devstate_t;
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typedef struct drm_magic_entry {
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drm_magic_t magic;
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struct drm_file *priv;
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struct drm_magic_entry *next;
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} drm_magic_entry_t;
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typedef struct drm_magic_head {
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struct drm_magic_entry *head;
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struct drm_magic_entry *tail;
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} drm_magic_head_t;
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typedef struct drm_vma_entry {
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struct vm_area_struct *vma;
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struct drm_vma_entry *next;
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pid_t pid;
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} drm_vma_entry_t;
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/**
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* DMA buffer.
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*/
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typedef struct drm_buf {
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int idx; /**< Index into master buflist */
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int total; /**< Buffer size */
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int order; /**< log-base-2(total) */
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int used; /**< Amount of buffer in use (for DMA) */
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unsigned long offset; /**< Byte offset (used internally) */
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void *address; /**< Address of buffer */
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unsigned long bus_address; /**< Bus address of buffer */
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struct drm_buf *next; /**< Kernel-only: used for free list */
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__volatile__ int waiting; /**< On kernel DMA queue */
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__volatile__ int pending; /**< On hardware DMA queue */
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wait_queue_head_t dma_wait; /**< Processes waiting */
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struct file *filp; /**< Pointer to holding file descr */
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int context; /**< Kernel queue for this buffer */
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int while_locked; /**< Dispatch this buffer while locked */
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enum {
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DRM_LIST_NONE = 0,
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DRM_LIST_FREE = 1,
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DRM_LIST_WAIT = 2,
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DRM_LIST_PEND = 3,
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DRM_LIST_PRIO = 4,
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DRM_LIST_RECLAIM = 5
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} list; /**< Which list we're on */
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int dev_priv_size; /**< Size of buffer private storage */
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void *dev_private; /**< Per-buffer private storage */
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} drm_buf_t;
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/** bufs is one longer than it has to be */
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typedef struct drm_waitlist {
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int count; /**< Number of possible buffers */
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drm_buf_t **bufs; /**< List of pointers to buffers */
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drm_buf_t **rp; /**< Read pointer */
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drm_buf_t **wp; /**< Write pointer */
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drm_buf_t **end; /**< End pointer */
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spinlock_t read_lock;
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spinlock_t write_lock;
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} drm_waitlist_t;
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typedef struct drm_freelist {
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int initialized; /**< Freelist in use */
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atomic_t count; /**< Number of free buffers */
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drm_buf_t *next; /**< End pointer */
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wait_queue_head_t waiting; /**< Processes waiting on free bufs */
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int low_mark; /**< Low water mark */
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int high_mark; /**< High water mark */
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atomic_t wfh; /**< If waiting for high mark */
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spinlock_t lock;
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} drm_freelist_t;
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typedef struct drm_dma_handle {
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dma_addr_t busaddr;
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void *vaddr;
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size_t size;
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} drm_dma_handle_t;
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/**
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* Buffer entry. There is one of this for each buffer size order.
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*/
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typedef struct drm_buf_entry {
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int buf_size; /**< size */
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int buf_count; /**< number of buffers */
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drm_buf_t *buflist; /**< buffer list */
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int seg_count;
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int page_order;
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drm_dma_handle_t **seglist;
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drm_freelist_t freelist;
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} drm_buf_entry_t;
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/** File private data */
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typedef struct drm_file {
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int authenticated;
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int master;
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int minor;
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pid_t pid;
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uid_t uid;
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drm_magic_t magic;
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unsigned long ioctl_count;
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struct drm_file *next;
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struct drm_file *prev;
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struct drm_head *head;
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int remove_auth_on_close;
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unsigned long lock_count;
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void *driver_priv;
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} drm_file_t;
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/** Wait queue */
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typedef struct drm_queue {
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atomic_t use_count; /**< Outstanding uses (+1) */
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atomic_t finalization; /**< Finalization in progress */
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atomic_t block_count; /**< Count of processes waiting */
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atomic_t block_read; /**< Queue blocked for reads */
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wait_queue_head_t read_queue; /**< Processes waiting on block_read */
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atomic_t block_write; /**< Queue blocked for writes */
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wait_queue_head_t write_queue; /**< Processes waiting on block_write */
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#if 1
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atomic_t total_queued; /**< Total queued statistic */
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atomic_t total_flushed; /**< Total flushes statistic */
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atomic_t total_locks; /**< Total locks statistics */
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#endif
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drm_ctx_flags_t flags; /**< Context preserving and 2D-only */
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drm_waitlist_t waitlist; /**< Pending buffers */
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wait_queue_head_t flush_queue; /**< Processes waiting until flush */
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} drm_queue_t;
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/**
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* Lock data.
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*/
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typedef struct drm_lock_data {
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drm_hw_lock_t *hw_lock; /**< Hardware lock */
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struct file *filp; /**< File descr of lock holder (0=kernel) */
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wait_queue_head_t lock_queue; /**< Queue of blocked processes */
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unsigned long lock_time; /**< Time of last lock in jiffies */
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} drm_lock_data_t;
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/**
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* DMA data.
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*/
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typedef struct drm_device_dma {
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drm_buf_entry_t bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
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int buf_count; /**< total number of buffers */
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drm_buf_t **buflist; /**< Vector of pointers into drm_device_dma::bufs */
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int seg_count;
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int page_count; /**< number of pages */
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unsigned long *pagelist; /**< page list */
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unsigned long byte_count;
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enum {
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_DRM_DMA_USE_AGP = 0x01,
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_DRM_DMA_USE_SG = 0x02,
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_DRM_DMA_USE_FB = 0x04
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} flags;
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} drm_device_dma_t;
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/**
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* AGP memory entry. Stored as a doubly linked list.
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*/
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typedef struct drm_agp_mem {
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unsigned long handle; /**< handle */
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DRM_AGP_MEM *memory;
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unsigned long bound; /**< address */
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int pages;
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struct drm_agp_mem *prev; /**< previous entry */
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struct drm_agp_mem *next; /**< next entry */
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} drm_agp_mem_t;
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/**
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* AGP data.
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*
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* \sa drm_agp_init() and drm_device::agp.
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*/
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typedef struct drm_agp_head {
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DRM_AGP_KERN agp_info; /**< AGP device information */
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drm_agp_mem_t *memory; /**< memory entries */
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unsigned long mode; /**< AGP mode */
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struct agp_bridge_data *bridge;
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int enabled; /**< whether the AGP bus as been enabled */
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int acquired; /**< whether the AGP device has been acquired */
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unsigned long base;
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int agp_mtrr;
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int cant_use_aperture;
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unsigned long page_mask;
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} drm_agp_head_t;
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/**
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* Scatter-gather memory.
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*/
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typedef struct drm_sg_mem {
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unsigned long handle;
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void *virtual;
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int pages;
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struct page **pagelist;
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dma_addr_t *busaddr;
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} drm_sg_mem_t;
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typedef struct drm_sigdata {
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int context;
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drm_hw_lock_t *lock;
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} drm_sigdata_t;
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/**
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* Mappings list
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*/
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typedef struct drm_map_list {
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struct list_head head; /**< list head */
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drm_map_t *map; /**< mapping */
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unsigned int user_token;
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} drm_map_list_t;
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typedef drm_map_t drm_local_map_t;
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/**
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* Context handle list
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*/
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typedef struct drm_ctx_list {
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struct list_head head; /**< list head */
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drm_context_t handle; /**< context handle */
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drm_file_t *tag; /**< associated fd private data */
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} drm_ctx_list_t;
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typedef struct drm_vbl_sig {
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struct list_head head;
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unsigned int sequence;
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struct siginfo info;
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struct task_struct *task;
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} drm_vbl_sig_t;
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|
/* location of GART table */
|
|
#define DRM_ATI_GART_MAIN 1
|
|
#define DRM_ATI_GART_FB 2
|
|
|
|
typedef struct ati_pcigart_info {
|
|
int gart_table_location;
|
|
int is_pcie;
|
|
void *addr;
|
|
dma_addr_t bus_addr;
|
|
drm_local_map_t mapping;
|
|
} drm_ati_pcigart_info;
|
|
|
|
/*
|
|
* Generic memory manager structs
|
|
*/
|
|
typedef struct drm_mm_node {
|
|
struct list_head fl_entry;
|
|
struct list_head ml_entry;
|
|
int free;
|
|
unsigned long start;
|
|
unsigned long size;
|
|
void *private;
|
|
} drm_mm_node_t;
|
|
|
|
typedef struct drm_mm {
|
|
drm_mm_node_t root_node;
|
|
} drm_mm_t;
|
|
|
|
/**
|
|
* DRM driver structure. This structure represent the common code for
|
|
* a family of cards. There will one drm_device for each card present
|
|
* in this family
|
|
*/
|
|
struct drm_device;
|
|
|
|
struct drm_driver {
|
|
int (*load) (struct drm_device *, unsigned long flags);
|
|
int (*firstopen) (struct drm_device *);
|
|
int (*open) (struct drm_device *, drm_file_t *);
|
|
void (*preclose) (struct drm_device *, struct file * filp);
|
|
void (*postclose) (struct drm_device *, drm_file_t *);
|
|
void (*lastclose) (struct drm_device *);
|
|
int (*unload) (struct drm_device *);
|
|
int (*dma_ioctl) (DRM_IOCTL_ARGS);
|
|
void (*dma_ready) (struct drm_device *);
|
|
int (*dma_quiescent) (struct drm_device *);
|
|
int (*context_ctor) (struct drm_device * dev, int context);
|
|
int (*context_dtor) (struct drm_device * dev, int context);
|
|
int (*kernel_context_switch) (struct drm_device * dev, int old,
|
|
int new);
|
|
void (*kernel_context_switch_unlock) (struct drm_device * dev,
|
|
drm_lock_t *lock);
|
|
int (*vblank_wait) (struct drm_device * dev, unsigned int *sequence);
|
|
int (*dri_library_name) (struct drm_device *dev, char *buf);
|
|
|
|
/**
|
|
* Called by \c drm_device_is_agp. Typically used to determine if a
|
|
* card is really attached to AGP or not.
|
|
*
|
|
* \param dev DRM device handle
|
|
*
|
|
* \returns
|
|
* One of three values is returned depending on whether or not the
|
|
* card is absolutely \b not AGP (return of 0), absolutely \b is AGP
|
|
* (return of 1), or may or may not be AGP (return of 2).
|
|
*/
|
|
int (*device_is_agp) (struct drm_device * dev);
|
|
|
|
/* these have to be filled in */
|
|
|
|
irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
|
|
void (*irq_preinstall) (struct drm_device * dev);
|
|
void (*irq_postinstall) (struct drm_device * dev);
|
|
void (*irq_uninstall) (struct drm_device * dev);
|
|
void (*reclaim_buffers) (struct drm_device * dev, struct file * filp);
|
|
void (*reclaim_buffers_locked) (struct drm_device *dev,
|
|
struct file *filp);
|
|
unsigned long (*get_map_ofs) (drm_map_t * map);
|
|
unsigned long (*get_reg_ofs) (struct drm_device * dev);
|
|
void (*set_version) (struct drm_device * dev, drm_set_version_t * sv);
|
|
|
|
int major;
|
|
int minor;
|
|
int patchlevel;
|
|
char *name;
|
|
char *desc;
|
|
char *date;
|
|
|
|
u32 driver_features;
|
|
int dev_priv_size;
|
|
drm_ioctl_desc_t *ioctls;
|
|
int num_ioctls;
|
|
struct file_operations fops;
|
|
struct pci_driver pci_driver;
|
|
};
|
|
|
|
/**
|
|
* DRM head structure. This structure represent a video head on a card
|
|
* that may contain multiple heads. Embed one per head of these in the
|
|
* private drm_device structure.
|
|
*/
|
|
typedef struct drm_head {
|
|
int minor; /**< Minor device number */
|
|
struct drm_device *dev;
|
|
struct proc_dir_entry *dev_root; /**< proc directory entry */
|
|
dev_t device; /**< Device number for mknod */
|
|
struct class_device *dev_class;
|
|
} drm_head_t;
|
|
|
|
/**
|
|
* DRM device structure. This structure represent a complete card that
|
|
* may contain multiple heads.
|
|
*/
|
|
typedef struct drm_device {
|
|
char *unique; /**< Unique identifier: e.g., busid */
|
|
int unique_len; /**< Length of unique field */
|
|
char *devname; /**< For /proc/interrupts */
|
|
int if_version; /**< Highest interface version set */
|
|
|
|
int blocked; /**< Blocked due to VC switch? */
|
|
|
|
/** \name Locks */
|
|
/*@{ */
|
|
spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
|
|
struct mutex struct_mutex; /**< For others */
|
|
/*@} */
|
|
|
|
/** \name Usage Counters */
|
|
/*@{ */
|
|
int open_count; /**< Outstanding files open */
|
|
atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
|
|
atomic_t vma_count; /**< Outstanding vma areas open */
|
|
int buf_use; /**< Buffers in use -- cannot alloc */
|
|
atomic_t buf_alloc; /**< Buffer allocation in progress */
|
|
/*@} */
|
|
|
|
/** \name Performance counters */
|
|
/*@{ */
|
|
unsigned long counters;
|
|
drm_stat_type_t types[15];
|
|
atomic_t counts[15];
|
|
/*@} */
|
|
|
|
/** \name Authentication */
|
|
/*@{ */
|
|
drm_file_t *file_first; /**< file list head */
|
|
drm_file_t *file_last; /**< file list tail */
|
|
drm_magic_head_t magiclist[DRM_HASH_SIZE]; /**< magic hash table */
|
|
/*@} */
|
|
|
|
/** \name Memory management */
|
|
/*@{ */
|
|
drm_map_list_t *maplist; /**< Linked list of regions */
|
|
int map_count; /**< Number of mappable regions */
|
|
|
|
/** \name Context handle management */
|
|
/*@{ */
|
|
drm_ctx_list_t *ctxlist; /**< Linked list of context handles */
|
|
int ctx_count; /**< Number of context handles */
|
|
struct mutex ctxlist_mutex; /**< For ctxlist */
|
|
|
|
drm_map_t **context_sareas; /**< per-context SAREA's */
|
|
int max_context;
|
|
|
|
drm_vma_entry_t *vmalist; /**< List of vmas (for debugging) */
|
|
drm_lock_data_t lock; /**< Information on hardware lock */
|
|
/*@} */
|
|
|
|
/** \name DMA queues (contexts) */
|
|
/*@{ */
|
|
int queue_count; /**< Number of active DMA queues */
|
|
int queue_reserved; /**< Number of reserved DMA queues */
|
|
int queue_slots; /**< Actual length of queuelist */
|
|
drm_queue_t **queuelist; /**< Vector of pointers to DMA queues */
|
|
drm_device_dma_t *dma; /**< Optional pointer for DMA support */
|
|
/*@} */
|
|
|
|
/** \name Context support */
|
|
/*@{ */
|
|
int irq; /**< Interrupt used by board */
|
|
int irq_enabled; /**< True if irq handler is enabled */
|
|
__volatile__ long context_flag; /**< Context swapping flag */
|
|
__volatile__ long interrupt_flag; /**< Interruption handler flag */
|
|
__volatile__ long dma_flag; /**< DMA dispatch flag */
|
|
struct timer_list timer; /**< Timer for delaying ctx switch */
|
|
wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
|
|
int last_checked; /**< Last context checked for DMA */
|
|
int last_context; /**< Last current context */
|
|
unsigned long last_switch; /**< jiffies at last context switch */
|
|
/*@} */
|
|
|
|
struct work_struct work;
|
|
/** \name VBLANK IRQ support */
|
|
/*@{ */
|
|
|
|
wait_queue_head_t vbl_queue; /**< VBLANK wait queue */
|
|
atomic_t vbl_received;
|
|
spinlock_t vbl_lock;
|
|
drm_vbl_sig_t vbl_sigs; /**< signal list to send on VBLANK */
|
|
unsigned int vbl_pending;
|
|
|
|
/*@} */
|
|
cycles_t ctx_start;
|
|
cycles_t lck_start;
|
|
|
|
struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
|
|
wait_queue_head_t buf_readers; /**< Processes waiting to read */
|
|
wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
|
|
|
|
drm_agp_head_t *agp; /**< AGP data */
|
|
|
|
struct pci_dev *pdev; /**< PCI device structure */
|
|
#ifdef __alpha__
|
|
struct pci_controller *hose;
|
|
#endif
|
|
drm_sg_mem_t *sg; /**< Scatter gather memory */
|
|
unsigned long *ctx_bitmap; /**< context bitmap */
|
|
void *dev_private; /**< device private data */
|
|
drm_sigdata_t sigdata; /**< For block_all_signals */
|
|
sigset_t sigmask;
|
|
|
|
struct drm_driver *driver;
|
|
drm_local_map_t *agp_buffer_map;
|
|
unsigned int agp_buffer_token;
|
|
drm_head_t primary; /**< primary screen head */
|
|
} drm_device_t;
|
|
|
|
static __inline__ int drm_core_check_feature(struct drm_device *dev,
|
|
int feature)
|
|
{
|
|
return ((dev->driver->driver_features & feature) ? 1 : 0);
|
|
}
|
|
|
|
#ifdef __alpha__
|
|
#define drm_get_pci_domain(dev) dev->hose->bus->number
|
|
#else
|
|
#define drm_get_pci_domain(dev) pci_domain_nr(dev->pdev->bus)
|
|
#endif
|
|
|
|
#if __OS_HAS_AGP
|
|
static inline int drm_core_has_AGP(struct drm_device *dev)
|
|
{
|
|
return drm_core_check_feature(dev, DRIVER_USE_AGP);
|
|
}
|
|
#else
|
|
#define drm_core_has_AGP(dev) (0)
|
|
#endif
|
|
|
|
#if __OS_HAS_MTRR
|
|
static inline int drm_core_has_MTRR(struct drm_device *dev)
|
|
{
|
|
return drm_core_check_feature(dev, DRIVER_USE_MTRR);
|
|
}
|
|
|
|
#define DRM_MTRR_WC MTRR_TYPE_WRCOMB
|
|
|
|
static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
|
|
unsigned int flags)
|
|
{
|
|
return mtrr_add(offset, size, flags, 1);
|
|
}
|
|
|
|
static inline int drm_mtrr_del(int handle, unsigned long offset,
|
|
unsigned long size, unsigned int flags)
|
|
{
|
|
return mtrr_del(handle, offset, size);
|
|
}
|
|
|
|
#else
|
|
#define drm_core_has_MTRR(dev) (0)
|
|
|
|
#define DRM_MTRR_WC 0
|
|
|
|
static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
|
|
unsigned int flags)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int drm_mtrr_del(int handle, unsigned long offset,
|
|
unsigned long size, unsigned int flags)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/******************************************************************/
|
|
/** \name Internal function definitions */
|
|
/*@{*/
|
|
|
|
/* Driver support (drm_drv.h) */
|
|
extern int drm_init(struct drm_driver *driver);
|
|
extern void drm_exit(struct drm_driver *driver);
|
|
extern int drm_ioctl(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern long drm_compat_ioctl(struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_lastclose(drm_device_t *dev);
|
|
|
|
/* Device support (drm_fops.h) */
|
|
extern int drm_open(struct inode *inode, struct file *filp);
|
|
extern int drm_stub_open(struct inode *inode, struct file *filp);
|
|
extern int drm_fasync(int fd, struct file *filp, int on);
|
|
extern int drm_release(struct inode *inode, struct file *filp);
|
|
|
|
/* Mapping support (drm_vm.h) */
|
|
extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
|
|
extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
|
|
|
|
/* Memory management support (drm_memory.h) */
|
|
#include "drm_memory.h"
|
|
extern void drm_mem_init(void);
|
|
extern int drm_mem_info(char *buf, char **start, off_t offset,
|
|
int request, int *eof, void *data);
|
|
extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
|
|
extern void *drm_ioremap(unsigned long offset, unsigned long size,
|
|
drm_device_t * dev);
|
|
extern void drm_ioremapfree(void *pt, unsigned long size, drm_device_t * dev);
|
|
|
|
extern DRM_AGP_MEM *drm_alloc_agp(drm_device_t * dev, int pages, u32 type);
|
|
extern int drm_free_agp(DRM_AGP_MEM * handle, int pages);
|
|
extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
|
|
extern int drm_unbind_agp(DRM_AGP_MEM * handle);
|
|
|
|
/* Misc. IOCTL support (drm_ioctl.h) */
|
|
extern int drm_irq_by_busid(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_getunique(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_setunique(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_getmap(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_getclient(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_getstats(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_setversion(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_noop(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
|
|
/* Context IOCTL support (drm_context.h) */
|
|
extern int drm_resctx(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_addctx(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_modctx(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_getctx(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_switchctx(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_newctx(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_rmctx(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
|
|
extern int drm_ctxbitmap_init(drm_device_t * dev);
|
|
extern void drm_ctxbitmap_cleanup(drm_device_t * dev);
|
|
extern void drm_ctxbitmap_free(drm_device_t * dev, int ctx_handle);
|
|
|
|
extern int drm_setsareactx(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_getsareactx(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
|
|
/* Drawable IOCTL support (drm_drawable.h) */
|
|
extern int drm_adddraw(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_rmdraw(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
|
|
/* Authentication IOCTL support (drm_auth.h) */
|
|
extern int drm_getmagic(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_authmagic(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
|
|
/* Locking IOCTL support (drm_lock.h) */
|
|
extern int drm_lock(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_unlock(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_lock_take(__volatile__ unsigned int *lock, unsigned int context);
|
|
extern int drm_lock_free(drm_device_t * dev,
|
|
__volatile__ unsigned int *lock, unsigned int context);
|
|
|
|
/* Buffer management support (drm_bufs.h) */
|
|
extern int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request);
|
|
extern int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request);
|
|
extern int drm_addmap(drm_device_t * dev, unsigned int offset,
|
|
unsigned int size, drm_map_type_t type,
|
|
drm_map_flags_t flags, drm_local_map_t ** map_ptr);
|
|
extern int drm_addmap_ioctl(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_rmmap(drm_device_t * dev, drm_local_map_t * map);
|
|
extern int drm_rmmap_locked(drm_device_t * dev, drm_local_map_t * map);
|
|
extern int drm_rmmap_ioctl(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
|
|
extern int drm_order(unsigned long size);
|
|
extern int drm_addbufs(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_infobufs(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_markbufs(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_freebufs(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_mapbufs(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern unsigned long drm_get_resource_start(drm_device_t * dev,
|
|
unsigned int resource);
|
|
extern unsigned long drm_get_resource_len(drm_device_t * dev,
|
|
unsigned int resource);
|
|
|
|
/* DMA support (drm_dma.h) */
|
|
extern int drm_dma_setup(drm_device_t * dev);
|
|
extern void drm_dma_takedown(drm_device_t * dev);
|
|
extern void drm_free_buffer(drm_device_t * dev, drm_buf_t * buf);
|
|
extern void drm_core_reclaim_buffers(drm_device_t * dev, struct file *filp);
|
|
|
|
/* IRQ support (drm_irq.h) */
|
|
extern int drm_control(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
|
|
extern int drm_irq_uninstall(drm_device_t * dev);
|
|
extern void drm_driver_irq_preinstall(drm_device_t * dev);
|
|
extern void drm_driver_irq_postinstall(drm_device_t * dev);
|
|
extern void drm_driver_irq_uninstall(drm_device_t * dev);
|
|
|
|
extern int drm_wait_vblank(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_vblank_wait(drm_device_t * dev, unsigned int *vbl_seq);
|
|
extern void drm_vbl_send_signals(drm_device_t * dev);
|
|
|
|
/* AGP/GART support (drm_agpsupport.h) */
|
|
extern drm_agp_head_t *drm_agp_init(drm_device_t * dev);
|
|
extern int drm_agp_acquire(drm_device_t * dev);
|
|
extern int drm_agp_acquire_ioctl(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_agp_release(drm_device_t * dev);
|
|
extern int drm_agp_release_ioctl(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_agp_enable(drm_device_t * dev, drm_agp_mode_t mode);
|
|
extern int drm_agp_enable_ioctl(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_agp_info(drm_device_t * dev, drm_agp_info_t * info);
|
|
extern int drm_agp_info_ioctl(struct inode *inode, struct file *filp,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int drm_agp_alloc(drm_device_t *dev, drm_agp_buffer_t *request);
|
|
extern int drm_agp_alloc_ioctl(struct inode *inode, struct file *filp,
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unsigned int cmd, unsigned long arg);
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extern int drm_agp_free(drm_device_t *dev, drm_agp_buffer_t *request);
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extern int drm_agp_free_ioctl(struct inode *inode, struct file *filp,
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unsigned int cmd, unsigned long arg);
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extern int drm_agp_unbind(drm_device_t *dev, drm_agp_binding_t *request);
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extern int drm_agp_unbind_ioctl(struct inode *inode, struct file *filp,
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unsigned int cmd, unsigned long arg);
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extern int drm_agp_bind(drm_device_t *dev, drm_agp_binding_t *request);
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extern int drm_agp_bind_ioctl(struct inode *inode, struct file *filp,
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unsigned int cmd, unsigned long arg);
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extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge,
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size_t pages, u32 type);
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extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
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extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
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extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
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/* Stub support (drm_stub.h) */
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extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
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struct drm_driver *driver);
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extern int drm_put_dev(drm_device_t * dev);
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extern int drm_put_head(drm_head_t * head);
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extern unsigned int drm_debug;
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extern unsigned int drm_cards_limit;
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extern drm_head_t **drm_heads;
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extern struct class *drm_class;
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extern struct proc_dir_entry *drm_proc_root;
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/* Proc support (drm_proc.h) */
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extern int drm_proc_init(drm_device_t * dev,
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int minor,
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struct proc_dir_entry *root,
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struct proc_dir_entry **dev_root);
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extern int drm_proc_cleanup(int minor,
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struct proc_dir_entry *root,
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struct proc_dir_entry *dev_root);
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|
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/* Scatter Gather Support (drm_scatter.h) */
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extern void drm_sg_cleanup(drm_sg_mem_t * entry);
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extern int drm_sg_alloc(struct inode *inode, struct file *filp,
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unsigned int cmd, unsigned long arg);
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extern int drm_sg_free(struct inode *inode, struct file *filp,
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unsigned int cmd, unsigned long arg);
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|
|
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/* ATI PCIGART support (ati_pcigart.h) */
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extern int drm_ati_pcigart_init(drm_device_t * dev,
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|
drm_ati_pcigart_info * gart_info);
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extern int drm_ati_pcigart_cleanup(drm_device_t * dev,
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|
drm_ati_pcigart_info * gart_info);
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|
|
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extern drm_dma_handle_t *drm_pci_alloc(drm_device_t * dev, size_t size,
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|
size_t align, dma_addr_t maxaddr);
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extern void __drm_pci_free(drm_device_t * dev, drm_dma_handle_t * dmah);
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extern void drm_pci_free(drm_device_t * dev, drm_dma_handle_t * dmah);
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|
|
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/* sysfs support (drm_sysfs.c) */
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extern struct class *drm_sysfs_create(struct module *owner, char *name);
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extern void drm_sysfs_destroy(struct class *cs);
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extern struct class_device *drm_sysfs_device_add(struct class *cs,
|
|
drm_head_t *head);
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|
extern void drm_sysfs_device_remove(struct class_device *class_dev);
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|
|
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/*
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* Basic memory manager support (drm_mm.c)
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|
*/
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extern drm_mm_node_t *drm_mm_get_block(drm_mm_node_t * parent,
|
|
unsigned long size,
|
|
unsigned alignment);
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|
extern void drm_mm_put_block(drm_mm_t *mm, drm_mm_node_t *cur);
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|
extern drm_mm_node_t *drm_mm_search_free(const drm_mm_t *mm, unsigned long size,
|
|
unsigned alignment, int best_match);
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|
extern int drm_mm_init(drm_mm_t *mm, unsigned long start, unsigned long size);
|
|
extern void drm_mm_takedown(drm_mm_t *mm);
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|
|
|
/* Inline replacements for DRM_IOREMAP macros */
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|
static __inline__ void drm_core_ioremap(struct drm_map *map,
|
|
struct drm_device *dev)
|
|
{
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|
map->handle = drm_ioremap(map->offset, map->size, dev);
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|
}
|
|
|
|
#if 0
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|
static __inline__ void drm_core_ioremap_nocache(struct drm_map *map,
|
|
struct drm_device *dev)
|
|
{
|
|
map->handle = drm_ioremap_nocache(map->offset, map->size, dev);
|
|
}
|
|
#endif /* 0 */
|
|
|
|
static __inline__ void drm_core_ioremapfree(struct drm_map *map,
|
|
struct drm_device *dev)
|
|
{
|
|
if (map->handle && map->size)
|
|
drm_ioremapfree(map->handle, map->size, dev);
|
|
}
|
|
|
|
static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev,
|
|
unsigned int token)
|
|
{
|
|
drm_map_list_t *_entry;
|
|
list_for_each_entry(_entry, &dev->maplist->head, head)
|
|
if (_entry->user_token == token)
|
|
return _entry->map;
|
|
return NULL;
|
|
}
|
|
|
|
static __inline__ int drm_device_is_agp(drm_device_t * dev)
|
|
{
|
|
if (dev->driver->device_is_agp != NULL) {
|
|
int err = (*dev->driver->device_is_agp) (dev);
|
|
|
|
if (err != 2) {
|
|
return err;
|
|
}
|
|
}
|
|
|
|
return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
|
|
}
|
|
|
|
static __inline__ int drm_device_is_pcie(drm_device_t * dev)
|
|
{
|
|
return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
|
|
}
|
|
|
|
static __inline__ void drm_core_dropmap(struct drm_map *map)
|
|
{
|
|
}
|
|
|
|
#ifndef DEBUG_MEMORY
|
|
/** Wrapper around kmalloc() */
|
|
static __inline__ void *drm_alloc(size_t size, int area)
|
|
{
|
|
return kmalloc(size, GFP_KERNEL);
|
|
}
|
|
|
|
/** Wrapper around kfree() */
|
|
static __inline__ void drm_free(void *pt, size_t size, int area)
|
|
{
|
|
kfree(pt);
|
|
}
|
|
|
|
/** Wrapper around kcalloc() */
|
|
static __inline__ void *drm_calloc(size_t nmemb, size_t size, int area)
|
|
{
|
|
return kcalloc(nmemb, size, GFP_KERNEL);
|
|
}
|
|
#else
|
|
extern void *drm_alloc(size_t size, int area);
|
|
extern void drm_free(void *pt, size_t size, int area);
|
|
extern void *drm_calloc(size_t nmemb, size_t size, int area);
|
|
#endif
|
|
|
|
/*@}*/
|
|
|
|
extern unsigned long drm_core_get_map_ofs(drm_map_t * map);
|
|
extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev);
|
|
|
|
#ifndef pci_pretty_name
|
|
#define pci_pretty_name(dev) ""
|
|
#endif
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif
|