/** * \file drm_scatter.h * IOCTLs to manage scatter/gather memory * * \author Gareth Hughes */ /* * Created: Mon Dec 18 23:20:54 2000 by gareth@valinux.com * * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. * All Rights Reserved. * * 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 (including the next * paragraph) 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 * PRECISION INSIGHT AND/OR ITS SUPPLIERS 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. */ #include #include #include "drmP.h" #define DEBUG_SCATTER 0 void DRM(sg_cleanup)( drm_sg_mem_t *entry ) { struct page *page; int i; for ( i = 0 ; i < entry->pages ; i++ ) { page = entry->pagelist[i]; if ( page ) ClearPageReserved( page ); } vfree( entry->virtual ); DRM(free)( entry->busaddr, entry->pages * sizeof(*entry->busaddr), DRM_MEM_PAGES ); DRM(free)( entry->pagelist, entry->pages * sizeof(*entry->pagelist), DRM_MEM_PAGES ); DRM(free)( entry, sizeof(*entry), DRM_MEM_SGLISTS ); } int DRM(sg_alloc)( struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg ) { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; drm_scatter_gather_t __user *argp = (void __user *)arg; drm_scatter_gather_t request; drm_sg_mem_t *entry; unsigned long pages, i, j; DRM_DEBUG( "%s\n", __FUNCTION__ ); if (!drm_core_check_feature(dev, DRIVER_SG)) return -EINVAL; if ( dev->sg ) return -EINVAL; if ( copy_from_user( &request, argp, sizeof(request) ) ) return -EFAULT; entry = DRM(alloc)( sizeof(*entry), DRM_MEM_SGLISTS ); if ( !entry ) return -ENOMEM; memset( entry, 0, sizeof(*entry) ); pages = (request.size + PAGE_SIZE - 1) / PAGE_SIZE; DRM_DEBUG( "sg size=%ld pages=%ld\n", request.size, pages ); entry->pages = pages; entry->pagelist = DRM(alloc)( pages * sizeof(*entry->pagelist), DRM_MEM_PAGES ); if ( !entry->pagelist ) { DRM(free)( entry, sizeof(*entry), DRM_MEM_SGLISTS ); return -ENOMEM; } memset(entry->pagelist, 0, pages * sizeof(*entry->pagelist)); entry->busaddr = DRM(alloc)( pages * sizeof(*entry->busaddr), DRM_MEM_PAGES ); if ( !entry->busaddr ) { DRM(free)( entry->pagelist, entry->pages * sizeof(*entry->pagelist), DRM_MEM_PAGES ); DRM(free)( entry, sizeof(*entry), DRM_MEM_SGLISTS ); return -ENOMEM; } memset( (void *)entry->busaddr, 0, pages * sizeof(*entry->busaddr) ); entry->virtual = vmalloc_32( pages << PAGE_SHIFT ); if ( !entry->virtual ) { DRM(free)( entry->busaddr, entry->pages * sizeof(*entry->busaddr), DRM_MEM_PAGES ); DRM(free)( entry->pagelist, entry->pages * sizeof(*entry->pagelist), DRM_MEM_PAGES ); DRM(free)( entry, sizeof(*entry), DRM_MEM_SGLISTS ); return -ENOMEM; } /* This also forces the mapping of COW pages, so our page list * will be valid. Please don't remove it... */ memset( entry->virtual, 0, pages << PAGE_SHIFT ); entry->handle = (unsigned long)entry->virtual; DRM_DEBUG( "sg alloc handle = %08lx\n", entry->handle ); DRM_DEBUG( "sg alloc virtual = %p\n", entry->virtual ); for ( i = entry->handle, j = 0 ; j < pages ; i += PAGE_SIZE, j++ ) { entry->pagelist[j] = vmalloc_to_page((void *)i); if (!entry->pagelist[j]) goto failed; SetPageReserved(entry->pagelist[j]); } request.handle = entry->handle; if ( copy_to_user( argp, &request, sizeof(request) ) ) { DRM(sg_cleanup)( entry ); return -EFAULT; } dev->sg = entry; #if DEBUG_SCATTER /* Verify that each page points to its virtual address, and vice * versa. */ { int error = 0; for ( i = 0 ; i < pages ; i++ ) { unsigned long *tmp; tmp = page_address( entry->pagelist[i] ); for ( j = 0 ; j < PAGE_SIZE / sizeof(unsigned long) ; j++, tmp++ ) { *tmp = 0xcafebabe; } tmp = (unsigned long *)((u8 *)entry->virtual + (PAGE_SIZE * i)); for( j = 0 ; j < PAGE_SIZE / sizeof(unsigned long) ; j++, tmp++ ) { if ( *tmp != 0xcafebabe && error == 0 ) { error = 1; DRM_ERROR( "Scatter allocation error, " "pagelist does not match " "virtual mapping\n" ); } } tmp = page_address( entry->pagelist[i] ); for(j = 0 ; j < PAGE_SIZE / sizeof(unsigned long) ; j++, tmp++) { *tmp = 0; } } if (error == 0) DRM_ERROR( "Scatter allocation matches pagelist\n" ); } #endif return 0; failed: DRM(sg_cleanup)( entry ); return -ENOMEM; } int DRM(sg_free)( struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg ) { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; drm_scatter_gather_t request; drm_sg_mem_t *entry; if (!drm_core_check_feature(dev, DRIVER_SG)) return -EINVAL; if ( copy_from_user( &request, (drm_scatter_gather_t __user *)arg, sizeof(request) ) ) return -EFAULT; entry = dev->sg; dev->sg = NULL; if ( !entry || entry->handle != request.handle ) return -EINVAL; DRM_DEBUG( "sg free virtual = %p\n", entry->virtual ); DRM(sg_cleanup)( entry ); return 0; } id='n104' href='#n104'>104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 
/**
 * \file radeon_drv.c
 * ATI Radeon driver
 *
 * \author Gareth Hughes <gareth@valinux.com>
 */

/*
 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
 * All Rights Reserved.
 *
 * 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 (including the next
 * paragraph) 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
 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS 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.
 */

#include <linux/config.h>
#include "drmP.h"
#include "drm.h"
#include "radeon_drm.h"
#include "radeon_drv.h"
#include "ati_pcigart.h"

#include "drm_pciids.h"

static int postinit(struct drm_device *dev, unsigned long flags)
{
	DRM_INFO("Initialized %s %d.%d.%d %s on minor %d: %s\n",
		 DRIVER_NAME,
		 DRIVER_MAJOR,
		 DRIVER_MINOR,
		 DRIVER_PATCHLEVEL,
		 DRIVER_DATE, dev->primary.minor, pci_pretty_name(dev->pdev)
	    );
	return 0;
}

static int version(drm_version_t * version)
{
	int len;

	version->version_major = DRIVER_MAJOR;
	version->version_minor = DRIVER_MINOR;
	version->version_patchlevel = DRIVER_PATCHLEVEL;
	DRM_COPY(version->name, DRIVER_NAME);
	DRM_COPY(version->date, DRIVER_DATE);
	DRM_COPY(version->desc, DRIVER_DESC);
	return 0;
}

static struct pci_device_id pciidlist[] = {
	radeon_PCI_IDS
};

/* Interface history:
 *
 * 1.1 - ??
 * 1.2 - Add vertex2 ioctl (keith)
 *     - Add stencil capability to clear ioctl (gareth, keith)
 *     - Increase MAX_TEXTURE_LEVELS (brian)
 * 1.3 - Add cmdbuf ioctl (keith)
 *     - Add support for new radeon packets (keith)
 *     - Add getparam ioctl (keith)
 *     - Add flip-buffers ioctl, deprecate fullscreen foo (keith).
 * 1.4 - Add scratch registers to get_param ioctl.
 * 1.5 - Add r200 packets to cmdbuf ioctl
 *     - Add r200 function to init ioctl
 *     - Add 'scalar2' instruction to cmdbuf
 * 1.6 - Add static GART memory manager
 *       Add irq handler (won't be turned on unless X server knows to)
 *       Add irq ioctls and irq_active getparam.
 *       Add wait command for cmdbuf ioctl
 *       Add GART offset query for getparam
 * 1.7 - Add support for cube map registers: R200_PP_CUBIC_FACES_[0..5]
 *       and R200_PP_CUBIC_OFFSET_F1_[0..5].
 *       Added packets R200_EMIT_PP_CUBIC_FACES_[0..5] and
 *       R200_EMIT_PP_CUBIC_OFFSETS_[0..5].  (brian)
 * 1.8 - Remove need to call cleanup ioctls on last client exit (keith)
 *       Add 'GET' queries for starting additional clients on different VT's.
 * 1.9 - Add DRM_IOCTL_RADEON_CP_RESUME ioctl.
 *       Add texture rectangle support for r100.
 * 1.10- Add SETPARAM ioctl; first parameter to set is FB_LOCATION, which
 *       clients use to tell the DRM where they think the framebuffer is
 *       located in the card's address space
 * 1.11- Add packet R200_EMIT_RB3D_BLENDCOLOR to support GL_EXT_blend_color
 *       and GL_EXT_blend_[func|equation]_separate on r200
 */
static drm_ioctl_desc_t ioctls[] = {
	[DRM_IOCTL_NR(DRM_RADEON_CP_INIT)] = {radeon_cp_init, 1, 1},
	[DRM_IOCTL_NR(DRM_RADEON_CP_START)] = {radeon_cp_start, 1, 1},
	[DRM_IOCTL_NR(DRM_RADEON_CP_STOP)] = {radeon_cp_stop, 1, 1},