New files

2 files changed, 497 insertions, 0 deletions

diff --git a/src/kernel/agpgart/agp_backend.h b/src/kernel/agpgart/agp_backend.h
new file mode 100644
index 0000000000..f250d4da58
--- /dev/null
+++ b/src/kernel/agpgart/agp_backend.h
@@ -0,0 +1,273 @@
+/*
+ * AGPGART module version 0.99
+ * Copyright (C) 1999 Jeff Hartmann
+ * Copyright (C) 1999 Precision Insight, Inc.
+ * Copyright (C) 1999 Xi Graphics, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM, 
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 
+ * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef _AGP_BACKEND_H
+#define _AGP_BACKEND_H 1
+
+#ifndef TRUE
+#define TRUE 1
+#endif
+
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+#define AGPGART_VERSION_MAJOR 0
+#define AGPGART_VERSION_MINOR 99
+
+enum chipset_type {
+	NOT_SUPPORTED,
+	INTEL_GENERIC,
+	INTEL_LX,
+	INTEL_BX,
+	INTEL_GX,
+	INTEL_I810,
+	INTEL_I815,
+	INTEL_I820,
+	INTEL_I830_M,
+	INTEL_I845_G,
+	INTEL_I840,
+	INTEL_I845,
+	INTEL_I850,
+	INTEL_I860,
+	INTEL_460GX,
+	VIA_GENERIC,
+	VIA_VP3,
+	VIA_MVP3,
+	VIA_MVP4,
+	VIA_APOLLO_PRO,
+	VIA_APOLLO_KX133,
+	VIA_APOLLO_KT133,
+	SIS_GENERIC,
+	AMD_GENERIC,
+	AMD_IRONGATE,
+	AMD_761,
+	AMD_762,
+	AMD_8151,
+	ALI_M1541,
+	ALI_M1621,
+	ALI_M1631,
+	ALI_M1632,
+	ALI_M1641,
+	ALI_M1644,
+	ALI_M1647,
+	ALI_M1651,
+	ALI_M1671,
+	ALI_GENERIC,
+	SVWRKS_HE,
+	SVWRKS_LE,
+	SVWRKS_GENERIC,
+	HP_ZX1,
+};
+
+struct agp_version {
+	u16 major;
+	u16 minor;
+};
+
+typedef struct _agp_kern_info {
+	struct agp_version version;
+	struct pci_dev *device;
+	enum chipset_type chipset;
+	unsigned long mode;
+	off_t aper_base;
+	size_t aper_size;
+	int max_memory;		/* In pages */
+	int current_memory;
+	int cant_use_aperture;
+	unsigned long page_mask;
+} agp_kern_info;
+
+/* 
+ * The agp_memory structure has information
+ * about the block of agp memory allocated.
+ * A caller may manipulate the next and prev
+ * pointers to link each allocated item into
+ * a list.  These pointers are ignored by the 
+ * backend.  Everything else should never be
+ * written to, but the caller may read any of
+ * the items to detrimine the status of this
+ * block of agp memory.
+ * 
+ */
+
+typedef struct _agp_memory {
+	int key;
+	struct _agp_memory *next;
+	struct _agp_memory *prev;
+	size_t page_count;
+	int num_scratch_pages;
+	unsigned long *memory;
+	off_t pg_start;
+	u32 type;
+	u32 physical;
+	u8 is_bound;
+	u8 is_flushed;
+} agp_memory;
+
+#define AGP_NORMAL_MEMORY 0
+
+extern void agp_free_memory(agp_memory *);
+
+/*
+ * agp_free_memory :
+ * 
+ * This function frees memory associated with
+ * an agp_memory pointer.  It is the only function
+ * that can be called when the backend is not owned
+ * by the caller.  (So it can free memory on client
+ * death.)
+ * 
+ * It takes an agp_memory pointer as an argument.
+ * 
+ */
+
+extern agp_memory *agp_allocate_memory(size_t, u32);
+
+/*
+ * agp_allocate_memory :
+ * 
+ * This function allocates a group of pages of
+ * a certain type.
+ * 
+ * It takes a size_t argument of the number of pages, and
+ * an u32 argument of the type of memory to be allocated.  
+ * Every agp bridge device will allow you to allocate 
+ * AGP_NORMAL_MEMORY which maps to physical ram.  Any other
+ * type is device dependant.
+ * 
+ * It returns NULL whenever memory is unavailable.
+ * 
+ */
+
+extern int agp_copy_info(agp_kern_info *);
+
+/*
+ * agp_copy_info :
+ * 
+ * This function copies information about the
+ * agp bridge device and the state of the agp
+ * backend into an agp_kern_info pointer.
+ * 
+ * It takes an agp_kern_info pointer as an
+ * argument.  The caller should insure that
+ * this pointer is valid.
+ * 
+ */
+
+extern int agp_bind_memory(agp_memory *, off_t);
+
+/*
+ * agp_bind_memory :
+ * 
+ * This function binds an agp_memory structure
+ * into the graphics aperture translation table.
+ * 
+ * It takes an agp_memory pointer and an offset into
+ * the graphics aperture translation table as arguments
+ * 
+ * It returns -EINVAL if the pointer == NULL.
+ * It returns -EBUSY if the area of the table
+ * requested is already in use.
+ * 
+ */
+
+extern int agp_unbind_memory(agp_memory *);
+
+/* 
+ * agp_unbind_memory :
+ * 
+ * This function removes an agp_memory structure
+ * from the graphics aperture translation table.
+ * 
+ * It takes an agp_memory pointer as an argument.
+ * 
+ * It returns -EINVAL if this piece of agp_memory
+ * is not currently bound to the graphics aperture
+ * translation table or if the agp_memory 
+ * pointer == NULL
+ * 
+ */
+
+extern void agp_enable(u32);
+
+/* 
+ * agp_enable :
+ * 
+ * This function initializes the agp point-to-point
+ * connection.
+ * 
+ * It takes an agp mode register as an argument
+ * 
+ */
+
+extern int agp_backend_acquire(void);
+
+/*
+ * agp_backend_acquire :
+ * 
+ * This Function attempts to acquire the agp
+ * backend.
+ * 
+ * returns -EBUSY if agp is in use,
+ * returns 0 if the caller owns the agp backend
+ */
+
+extern void agp_backend_release(void);
+
+/*
+ * agp_backend_release :
+ * 
+ * This Function releases the lock on the agp
+ * backend.
+ * 
+ * The caller must insure that the graphics
+ * aperture translation table is read for use
+ * by another entity.  (Ensure that all memory
+ * it bound is unbound.)
+ * 
+ */
+
+typedef struct {
+	void       (*free_memory)(agp_memory *);
+	agp_memory *(*allocate_memory)(size_t, u32);
+	int        (*bind_memory)(agp_memory *, off_t);
+	int        (*unbind_memory)(agp_memory *);
+	void       (*enable)(u32);
+	int        (*acquire)(void);
+	void       (*release)(void);
+	int        (*copy_info)(agp_kern_info *);
+} drm_agp_t;
+
+extern const drm_agp_t *drm_agp_p;
+
+/*
+ * Interface between drm and agp code.  When agp initializes, it makes
+ * the above structure available via inter_module_register(), drm might
+ * use it.  Keith Owens <kaos@ocs.com.au> 28 Oct 2000.
+ */
+
+#endif				/* _AGP_BACKEND_H */
diff --git a/src/kernel/agpgart/agpgart.h b/src/kernel/agpgart/agpgart.h
new file mode 100644
index 0000000000..af97a9c76d
--- /dev/null
+++ b/src/kernel/agpgart/agpgart.h
@@ -0,0 +1,224 @@
+/*
+ * AGPGART module version 0.99
+ * Copyright (C) 1999 Jeff Hartmann
+ * Copyright (C) 1999 Precision Insight, Inc.
+ * Copyright (C) 1999 Xi Graphics, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM, 
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 
+ * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef _AGP_H
+#define _AGP_H 1
+
+#define AGPIOC_BASE       'A'
+#define AGPIOC_INFO       _IOR (AGPIOC_BASE, 0, agp_info*)
+#define AGPIOC_ACQUIRE    _IO  (AGPIOC_BASE, 1)
+#define AGPIOC_RELEASE    _IO  (AGPIOC_BASE, 2)
+#define AGPIOC_SETUP      _IOW (AGPIOC_BASE, 3, agp_setup*)
+#define AGPIOC_RESERVE    _IOW (AGPIOC_BASE, 4, agp_region*)
+#define AGPIOC_PROTECT    _IOW (AGPIOC_BASE, 5, agp_region*)
+#define AGPIOC_ALLOCATE   _IOWR(AGPIOC_BASE, 6, agp_allocate*)
+#define AGPIOC_DEALLOCATE _IOW (AGPIOC_BASE, 7, int)
+#define AGPIOC_BIND       _IOW (AGPIOC_BASE, 8, agp_bind*)
+#define AGPIOC_UNBIND     _IOW (AGPIOC_BASE, 9, agp_unbind*)
+
+#define AGP_DEVICE      "/dev/agpgart"
+
+#ifndef TRUE
+#define TRUE 1
+#endif
+
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+#ifndef __KERNEL__
+#include <linux/types.h>
+#include <asm/types.h>
+
+struct agp_version {
+	__u16 major;
+	__u16 minor;
+};
+
+typedef struct _agp_info {
+	struct agp_version version;	/* version of the driver        */
+	__u32 bridge_id;	/* bridge vendor/device         */
+	__u32 agp_mode;		/* mode info of bridge          */
+	off_t aper_base;	/* base of aperture             */
+	size_t aper_size;	/* size of aperture             */
+	size_t pg_total;	/* max pages (swap + system)    */
+	size_t pg_system;	/* max pages (system)           */
+	size_t pg_used;		/* current pages used           */
+} agp_info;
+
+typedef struct _agp_setup {
+	__u32 agp_mode;		/* mode info of bridge          */
+} agp_setup;
+
+/*
+ * The "prot" down below needs still a "sleep" flag somehow ...
+ */
+typedef struct _agp_segment {
+	off_t pg_start;		/* starting page to populate    */
+	size_t pg_count;	/* number of pages              */
+	int prot;		/* prot flags for mmap          */
+} agp_segment;
+
+typedef struct _agp_region {
+	pid_t pid;		/* pid of process               */
+	size_t seg_count;	/* number of segments           */
+	struct _agp_segment *seg_list;
+} agp_region;
+
+typedef struct _agp_allocate {
+	int key;		/* tag of allocation            */
+	size_t pg_count;	/* number of pages              */
+	__u32 type;		/* 0 == normal, other devspec   */
+   	__u32 physical;         /* device specific (some devices  
+				 * need a phys address of the     
+				 * actual page behind the gatt    
+				 * table)                        */
+} agp_allocate;
+
+typedef struct _agp_bind {
+	int key;		/* tag of allocation            */
+	off_t pg_start;		/* starting page to populate    */
+} agp_bind;
+
+typedef struct _agp_unbind {
+	int key;		/* tag of allocation            */
+	__u32 priority;		/* priority for paging out      */
+} agp_unbind;
+
+#else				/* __KERNEL__ */
+
+#define AGPGART_MINOR 175
+
+#define AGP_UNLOCK()      	up(&(agp_fe.agp_mutex));
+#define AGP_LOCK()    		down(&(agp_fe.agp_mutex));
+#define AGP_LOCK_INIT() 	sema_init(&(agp_fe.agp_mutex), 1)
+
+#ifndef _AGP_BACKEND_H
+struct _agp_version {
+	u16 major;
+	u16 minor;
+} agp_version;
+
+#endif
+
+typedef struct _agp_info {
+	struct agp_version version;	/* version of the driver        */
+	u32 bridge_id;		/* bridge vendor/device         */
+	u32 agp_mode;		/* mode info of bridge          */
+	off_t aper_base;	/* base of aperture             */
+	size_t aper_size;	/* size of aperture             */
+	size_t pg_total;	/* max pages (swap + system)    */
+	size_t pg_system;	/* max pages (system)           */
+	size_t pg_used;		/* current pages used           */
+} agp_info;
+
+typedef struct _agp_setup {
+	u32 agp_mode;		/* mode info of bridge          */
+} agp_setup;
+
+/*
+ * The "prot" down below needs still a "sleep" flag somehow ...
+ */
+typedef struct _agp_segment {
+	off_t pg_start;		/* starting page to populate    */
+	size_t pg_count;	/* number of pages              */
+	int prot;		/* prot flags for mmap          */
+} agp_segment;
+
+typedef struct _agp_segment_priv {
+	off_t pg_start;
+	size_t pg_count;
+	pgprot_t prot;
+} agp_segment_priv;
+
+typedef struct _agp_region {
+	pid_t pid;		/* pid of process               */
+	size_t seg_count;	/* number of segments           */
+	struct _agp_segment *seg_list;
+} agp_region;
+
+typedef struct _agp_allocate {
+	int key;		/* tag of allocation            */
+	size_t pg_count;	/* number of pages              */
+	u32 type;		/* 0 == normal, other devspec   */
+	u32 physical;           /* device specific (some devices  
+				 * need a phys address of the     
+				 * actual page behind the gatt    
+				 * table)                        */
+} agp_allocate;
+
+typedef struct _agp_bind {
+	int key;		/* tag of allocation            */
+	off_t pg_start;		/* starting page to populate    */
+} agp_bind;
+
+typedef struct _agp_unbind {
+	int key;		/* tag of allocation            */
+	u32 priority;		/* priority for paging out      */
+} agp_unbind;
+
+typedef struct _agp_client {
+	struct _agp_client *next;
+	struct _agp_client *prev;
+	pid_t pid;
+	int num_segments;
+	agp_segment_priv **segments;
+} agp_client;
+
+typedef struct _agp_controller {
+	struct _agp_controller *next;
+	struct _agp_controller *prev;
+	pid_t pid;
+	int num_clients;
+	agp_memory *pool;
+	agp_client *clients;
+} agp_controller;
+
+#define AGP_FF_ALLOW_CLIENT		0
+#define AGP_FF_ALLOW_CONTROLLER 	1
+#define AGP_FF_IS_CLIENT		2
+#define AGP_FF_IS_CONTROLLER		3
+#define AGP_FF_IS_VALID 		4
+
+typedef struct _agp_file_private {
+	struct _agp_file_private *next;
+	struct _agp_file_private *prev;
+	pid_t my_pid;
+	long access_flags;	/* long req'd for set_bit --RR */
+} agp_file_private;
+
+struct agp_front_data {
+	struct semaphore agp_mutex;
+	agp_controller *current_controller;
+	agp_controller *controllers;
+	agp_file_private *file_priv_list;
+	u8 used_by_controller;
+	u8 backend_acquired;
+};
+
+#endif				/* __KERNEL__ */
+
+#endif				/* _AGP_H */