a13af4b4d8
This bumps the AGP interface to 0.103. Certain Intel chipsets contains a global write buffer, and this can require flushing from the drm or X.org to make sure all data has hit RAM before initiating a GPU transfer, due to a lack of coherency with the integrated graphics device and this buffer. This just adds generic support to the AGP interfaces, a follow-on patch will add support to the Intel driver to use this interface. Signed-off-by: Dave Airlie <airlied@redhat.com>
107 lines
4.3 KiB
C
107 lines
4.3 KiB
C
/*
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* Copyright (C) 1999 Jeff Hartmann
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* Copyright (C) 1999 Precision Insight, Inc.
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* Copyright (C) 1999 Xi Graphics, Inc.
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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 shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR 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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* JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#ifndef _AGP_COMPAT_IOCTL_H
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#define _AGP_COMPAT_IOCTL_H
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#include <linux/compat.h>
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#include <linux/agpgart.h>
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#define AGPIOC_INFO32 _IOR (AGPIOC_BASE, 0, compat_uptr_t)
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#define AGPIOC_ACQUIRE32 _IO (AGPIOC_BASE, 1)
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#define AGPIOC_RELEASE32 _IO (AGPIOC_BASE, 2)
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#define AGPIOC_SETUP32 _IOW (AGPIOC_BASE, 3, compat_uptr_t)
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#define AGPIOC_RESERVE32 _IOW (AGPIOC_BASE, 4, compat_uptr_t)
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#define AGPIOC_PROTECT32 _IOW (AGPIOC_BASE, 5, compat_uptr_t)
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#define AGPIOC_ALLOCATE32 _IOWR(AGPIOC_BASE, 6, compat_uptr_t)
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#define AGPIOC_DEALLOCATE32 _IOW (AGPIOC_BASE, 7, compat_int_t)
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#define AGPIOC_BIND32 _IOW (AGPIOC_BASE, 8, compat_uptr_t)
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#define AGPIOC_UNBIND32 _IOW (AGPIOC_BASE, 9, compat_uptr_t)
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#define AGPIOC_CHIPSET_FLUSH32 _IO (AGPIOC_BASE, 10)
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struct agp_info32 {
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struct agp_version version; /* version of the driver */
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u32 bridge_id; /* bridge vendor/device */
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u32 agp_mode; /* mode info of bridge */
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compat_long_t aper_base; /* base of aperture */
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compat_size_t aper_size; /* size of aperture */
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compat_size_t pg_total; /* max pages (swap + system) */
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compat_size_t pg_system; /* max pages (system) */
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compat_size_t pg_used; /* current pages used */
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};
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/*
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* The "prot" down below needs still a "sleep" flag somehow ...
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*/
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struct agp_segment32 {
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compat_off_t pg_start; /* starting page to populate */
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compat_size_t pg_count; /* number of pages */
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compat_int_t prot; /* prot flags for mmap */
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};
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struct agp_region32 {
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compat_pid_t pid; /* pid of process */
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compat_size_t seg_count; /* number of segments */
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struct agp_segment32 *seg_list;
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};
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struct agp_allocate32 {
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compat_int_t key; /* tag of allocation */
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compat_size_t pg_count; /* number of pages */
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u32 type; /* 0 == normal, other devspec */
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u32 physical; /* device specific (some devices
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* need a phys address of the
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* actual page behind the gatt
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* table) */
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};
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struct agp_bind32 {
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compat_int_t key; /* tag of allocation */
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compat_off_t pg_start; /* starting page to populate */
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};
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struct agp_unbind32 {
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compat_int_t key; /* tag of allocation */
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u32 priority; /* priority for paging out */
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};
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extern struct agp_front_data agp_fe;
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int agpioc_acquire_wrap(struct agp_file_private *priv);
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int agpioc_release_wrap(struct agp_file_private *priv);
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int agpioc_protect_wrap(struct agp_file_private *priv);
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int agpioc_setup_wrap(struct agp_file_private *priv, void __user *arg);
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int agpioc_deallocate_wrap(struct agp_file_private *priv, int arg);
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struct agp_file_private *agp_find_private(pid_t pid);
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struct agp_client *agp_create_client(pid_t id);
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int agp_remove_client(pid_t id);
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int agp_create_segment(struct agp_client *client, struct agp_region *region);
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void agp_free_memory_wrap(struct agp_memory *memory);
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struct agp_memory *agp_allocate_memory_wrap(size_t pg_count, u32 type);
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struct agp_memory *agp_find_mem_by_key(int key);
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struct agp_client *agp_find_client_by_pid(pid_t id);
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int agpioc_chipset_flush_wrap(struct agp_file_private *priv);
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#endif /* _AGP_COMPAT_H */
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