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-rw-r--r--drivers/char/drm/Makefile3
-rw-r--r--drivers/char/drm/i915_drv.c3
-rw-r--r--drivers/char/drm/i915_drv.h4
-rw-r--r--drivers/char/drm/i915_ioc32.c221
-rw-r--r--drivers/char/drm/mga_drv.c3
-rw-r--r--drivers/char/drm/mga_drv.h2
-rw-r--r--drivers/char/drm/mga_ioc32.c167
-rw-r--r--drivers/char/drm/r128_drv.c3
-rw-r--r--drivers/char/drm/r128_drv.h3
-rw-r--r--drivers/char/drm/r128_ioc32.c219
10 files changed, 628 insertions, 0 deletions
diff --git a/drivers/char/drm/Makefile b/drivers/char/drm/Makefile
index 7444dec40b94..b36b0158582e 100644
--- a/drivers/char/drm/Makefile
+++ b/drivers/char/drm/Makefile
@@ -22,6 +22,9 @@ sis-objs := sis_drv.o sis_ds.o sis_mm.o
22ifeq ($(CONFIG_COMPAT),y) 22ifeq ($(CONFIG_COMPAT),y)
23drm-objs += drm_ioc32.o 23drm-objs += drm_ioc32.o
24radeon-objs += radeon_ioc32.o 24radeon-objs += radeon_ioc32.o
25mga-objs += mga_ioc32.o
26r128-objs += r128_ioc32.o
27i915-objs += i915_ioc32.o
25endif 28endif
26 29
27obj-$(CONFIG_DRM) += drm.o 30obj-$(CONFIG_DRM) += drm.o
diff --git a/drivers/char/drm/i915_drv.c b/drivers/char/drm/i915_drv.c
index e6a9e1d1d283..6a6cc3c0c4c3 100644
--- a/drivers/char/drm/i915_drv.c
+++ b/drivers/char/drm/i915_drv.c
@@ -97,6 +97,9 @@ static struct drm_driver driver = {
97 .mmap = drm_mmap, 97 .mmap = drm_mmap,
98 .poll = drm_poll, 98 .poll = drm_poll,
99 .fasync = drm_fasync, 99 .fasync = drm_fasync,
100#ifdef CONFIG_COMPAT
101 .compat_ioctl = i915_compat_ioctl,
102#endif
100 }, 103 },
101 .pci_driver = { 104 .pci_driver = {
102 .name = DRIVER_NAME, 105 .name = DRIVER_NAME,
diff --git a/drivers/char/drm/i915_drv.h b/drivers/char/drm/i915_drv.h
index fa940d64b85d..3a21223267cb 100644
--- a/drivers/char/drm/i915_drv.h
+++ b/drivers/char/drm/i915_drv.h
@@ -130,6 +130,10 @@ extern void i915_mem_takedown(struct mem_block **heap);
130extern void i915_mem_release(drm_device_t * dev, 130extern void i915_mem_release(drm_device_t * dev,
131 DRMFILE filp, struct mem_block *heap); 131 DRMFILE filp, struct mem_block *heap);
132 132
133extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
134 unsigned long arg)
135
136
133#define I915_READ(reg) DRM_READ32(dev_priv->mmio_map, reg) 137#define I915_READ(reg) DRM_READ32(dev_priv->mmio_map, reg)
134#define I915_WRITE(reg,val) DRM_WRITE32(dev_priv->mmio_map, reg, val) 138#define I915_WRITE(reg,val) DRM_WRITE32(dev_priv->mmio_map, reg, val)
135#define I915_READ16(reg) DRM_READ16(dev_priv->mmio_map, reg) 139#define I915_READ16(reg) DRM_READ16(dev_priv->mmio_map, reg)
diff --git a/drivers/char/drm/i915_ioc32.c b/drivers/char/drm/i915_ioc32.c
new file mode 100644
index 000000000000..fe009e1b3a3f
--- /dev/null
+++ b/drivers/char/drm/i915_ioc32.c
@@ -0,0 +1,221 @@
1/**
2 * \file i915_ioc32.c
3 *
4 * 32-bit ioctl compatibility routines for the i915 DRM.
5 *
6 * \author Alan Hourihane <alanh@fairlite.demon.co.uk>
7 *
8 *
9 * Copyright (C) Paul Mackerras 2005
10 * Copyright (C) Alan Hourihane 2005
11 * All Rights Reserved.
12 *
13 * Permission is hereby granted, free of charge, to any person obtaining a
14 * copy of this software and associated documentation files (the "Software"),
15 * to deal in the Software without restriction, including without limitation
16 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
17 * and/or sell copies of the Software, and to permit persons to whom the
18 * Software is furnished to do so, subject to the following conditions:
19 *
20 * The above copyright notice and this permission notice (including the next
21 * paragraph) shall be included in all copies or substantial portions of the
22 * Software.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
25 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
26 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
27 * THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
28 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
29 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
30 * IN THE SOFTWARE.
31 */
32#include <linux/compat.h>
33#include <linux/ioctl32.h>
34
35#include "drmP.h"
36#include "drm.h"
37#include "i915_drm.h"
38
39typedef struct _drm_i915_batchbuffer32 {
40 int start; /* agp offset */
41 int used; /* nr bytes in use */
42 int DR1; /* hw flags for GFX_OP_DRAWRECT_INFO */
43 int DR4; /* window origin for GFX_OP_DRAWRECT_INFO */
44 int num_cliprects; /* mulitpass with multiple cliprects? */
45 u32 cliprects; /* pointer to userspace cliprects */
46} drm_i915_batchbuffer32_t;
47
48static int compat_i915_batchbuffer(struct file *file, unsigned int cmd,
49 unsigned long arg)
50{
51 drm_i915_batchbuffer32_t batchbuffer32;
52 drm_i915_batchbuffer_t __user *batchbuffer;
53
54 if (copy_from_user(&batchbuffer32, (void __user *)arg, sizeof(batchbuffer32)))
55 return -EFAULT;
56
57 batchbuffer = compat_alloc_user_space(sizeof(*batchbuffer));
58 if (!access_ok(VERIFY_WRITE, batchbuffer, sizeof(*batchbuffer))
59 || __put_user(batchbuffer32.start, &batchbuffer->start)
60 || __put_user(batchbuffer32.used, &batchbuffer->used)
61 || __put_user(batchbuffer32.DR1, &batchbuffer->DR1)
62 || __put_user(batchbuffer32.DR4, &batchbuffer->DR4)
63 || __put_user(batchbuffer32.num_cliprects, &batchbuffer->num_cliprects)
64 || __put_user((int __user *)(unsigned long)batchbuffer32.cliprects,
65 &batchbuffer->cliprects))
66 return -EFAULT;
67
68 return drm_ioctl(file->f_dentry->d_inode, file,
69 DRM_IOCTL_I915_BATCHBUFFER, (unsigned long) batchbuffer);
70}
71
72typedef struct _drm_i915_cmdbuffer32 {
73 u32 buf; /* pointer to userspace command buffer */
74 int sz; /* nr bytes in buf */
75 int DR1; /* hw flags for GFX_OP_DRAWRECT_INFO */
76 int DR4; /* window origin for GFX_OP_DRAWRECT_INFO */
77 int num_cliprects; /* mulitpass with multiple cliprects? */
78 u32 cliprects; /* pointer to userspace cliprects */
79} drm_i915_cmdbuffer32_t;
80
81static int compat_i915_cmdbuffer(struct file *file, unsigned int cmd,
82 unsigned long arg)
83{
84 drm_i915_cmdbuffer32_t cmdbuffer32;
85 drm_i915_cmdbuffer_t __user *cmdbuffer;
86
87 if (copy_from_user(&cmdbuffer32, (void __user *)arg, sizeof(cmdbuffer32)))
88 return -EFAULT;
89
90 cmdbuffer = compat_alloc_user_space(sizeof(*cmdbuffer));
91 if (!access_ok(VERIFY_WRITE, cmdbuffer, sizeof(*cmdbuffer))
92 || __put_user((int __user *)(unsigned long)cmdbuffer32.buf,
93 &cmdbuffer->buf)
94 || __put_user(cmdbuffer32.sz, &cmdbuffer->sz)
95 || __put_user(cmdbuffer32.DR1, &cmdbuffer->DR1)
96 || __put_user(cmdbuffer32.DR4, &cmdbuffer->DR4)
97 || __put_user(cmdbuffer32.num_cliprects, &cmdbuffer->num_cliprects)
98 || __put_user((int __user *)(unsigned long)cmdbuffer32.cliprects,
99 &cmdbuffer->cliprects))
100 return -EFAULT;
101
102 return drm_ioctl(file->f_dentry->d_inode, file,
103 DRM_IOCTL_I915_CMDBUFFER, (unsigned long) cmdbuffer);
104}
105
106typedef struct drm_i915_irq_emit32 {
107 u32 irq_seq;
108} drm_i915_irq_emit32_t;
109
110static int compat_i915_irq_emit(struct file *file, unsigned int cmd,
111 unsigned long arg)
112{
113 drm_i915_irq_emit32_t req32;
114 drm_i915_irq_emit_t __user *request;
115
116 if (copy_from_user(&req32, (void __user *) arg, sizeof(req32)))
117 return -EFAULT;
118
119 request = compat_alloc_user_space(sizeof(*request));
120 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
121 || __put_user((int __user *)(unsigned long)req32.irq_seq,
122 &request->irq_seq))
123 return -EFAULT;
124
125 return drm_ioctl(file->f_dentry->d_inode, file,
126 DRM_IOCTL_I915_IRQ_EMIT, (unsigned long) request);
127}
128typedef struct drm_i915_getparam32 {
129 int param;
130 u32 value;
131} drm_i915_getparam32_t;
132
133static int compat_i915_getparam(struct file *file, unsigned int cmd,
134 unsigned long arg)
135{
136 drm_i915_getparam32_t req32;
137 drm_i915_getparam_t __user *request;
138
139 if (copy_from_user(&req32, (void __user *) arg, sizeof(req32)))
140 return -EFAULT;
141
142 request = compat_alloc_user_space(sizeof(*request));
143 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
144 || __put_user(req32.param, &request->param)
145 || __put_user((void __user *)(unsigned long)req32.value,
146 &request->value))
147 return -EFAULT;
148
149 return drm_ioctl(file->f_dentry->d_inode, file,
150 DRM_IOCTL_I915_GETPARAM, (unsigned long) request);
151}
152
153typedef struct drm_i915_mem_alloc32 {
154 int region;
155 int alignment;
156 int size;
157 u32 region_offset; /* offset from start of fb or agp */
158} drm_i915_mem_alloc32_t;
159
160static int compat_i915_alloc(struct file *file, unsigned int cmd,
161 unsigned long arg)
162{
163 drm_i915_mem_alloc32_t req32;
164 drm_i915_mem_alloc_t __user *request;
165
166 if (copy_from_user(&req32, (void __user *) arg, sizeof(req32)))
167 return -EFAULT;
168
169 request = compat_alloc_user_space(sizeof(*request));
170 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
171 || __put_user(req32.region, &request->region)
172 || __put_user(req32.alignment, &request->alignment)
173 || __put_user(req32.size, &request->size)
174 || __put_user((void __user *)(unsigned long)req32.region_offset,
175 &request->region_offset))
176 return -EFAULT;
177
178 return drm_ioctl(file->f_dentry->d_inode, file,
179 DRM_IOCTL_I915_ALLOC, (unsigned long) request);
180}
181
182
183drm_ioctl_compat_t *i915_compat_ioctls[] = {
184 [DRM_I915_BATCHBUFFER] = compat_i915_batchbuffer,
185 [DRM_I915_CMDBUFFER] = compat_i915_cmdbuffer,
186 [DRM_I915_GETPARAM] = compat_i915_getparam,
187 [DRM_I915_IRQ_EMIT] = compat_i915_irq_emit,
188 [DRM_I915_ALLOC] = compat_i915_alloc
189};
190
191/**
192 * Called whenever a 32-bit process running under a 64-bit kernel
193 * performs an ioctl on /dev/dri/card<n>.
194 *
195 * \param filp file pointer.
196 * \param cmd command.
197 * \param arg user argument.
198 * \return zero on success or negative number on failure.
199 */
200long i915_compat_ioctl(struct file *filp, unsigned int cmd,
201 unsigned long arg)
202{
203 unsigned int nr = DRM_IOCTL_NR(cmd);
204 drm_ioctl_compat_t *fn = NULL;
205 int ret;
206
207 if (nr < DRM_COMMAND_BASE)
208 return drm_compat_ioctl(filp, cmd, arg);
209
210 if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(i915_compat_ioctls))
211 fn = i915_compat_ioctls[nr - DRM_COMMAND_BASE];
212
213 lock_kernel(); /* XXX for now */
214 if (fn != NULL)
215 ret = (*fn)(filp, cmd, arg);
216 else
217 ret = drm_ioctl(filp->f_dentry->d_inode, filp, cmd, arg);
218 unlock_kernel();
219
220 return ret;
221}
diff --git a/drivers/char/drm/mga_drv.c b/drivers/char/drm/mga_drv.c
index 22dab3e9d92a..844cca9cb29d 100644
--- a/drivers/char/drm/mga_drv.c
+++ b/drivers/char/drm/mga_drv.c
@@ -101,6 +101,9 @@ static struct drm_driver driver = {
101 .mmap = drm_mmap, 101 .mmap = drm_mmap,
102 .poll = drm_poll, 102 .poll = drm_poll,
103 .fasync = drm_fasync, 103 .fasync = drm_fasync,
104#ifdef CONFIG_COMPAT
105 .compat_ioctl = mga_compat_ioctl,
106#endif
104 }, 107 },
105 .pci_driver = { 108 .pci_driver = {
106 .name = DRIVER_NAME, 109 .name = DRIVER_NAME,
diff --git a/drivers/char/drm/mga_drv.h b/drivers/char/drm/mga_drv.h
index 1d84a1eb34db..9412e2816eb7 100644
--- a/drivers/char/drm/mga_drv.h
+++ b/drivers/char/drm/mga_drv.h
@@ -137,6 +137,8 @@ extern irqreturn_t mga_driver_irq_handler( DRM_IRQ_ARGS );
137extern void mga_driver_irq_preinstall( drm_device_t *dev ); 137extern void mga_driver_irq_preinstall( drm_device_t *dev );
138extern void mga_driver_irq_postinstall( drm_device_t *dev ); 138extern void mga_driver_irq_postinstall( drm_device_t *dev );
139extern void mga_driver_irq_uninstall( drm_device_t *dev ); 139extern void mga_driver_irq_uninstall( drm_device_t *dev );
140extern long mga_compat_ioctl(struct file *filp, unsigned int cmd,
141 unsigned long arg);
140 142
141#define mga_flush_write_combine() DRM_WRITEMEMORYBARRIER() 143#define mga_flush_write_combine() DRM_WRITEMEMORYBARRIER()
142 144
diff --git a/drivers/char/drm/mga_ioc32.c b/drivers/char/drm/mga_ioc32.c
new file mode 100644
index 000000000000..bc745cfa2095
--- /dev/null
+++ b/drivers/char/drm/mga_ioc32.c
@@ -0,0 +1,167 @@
1/**
2 * \file mga_ioc32.c
3 *
4 * 32-bit ioctl compatibility routines for the MGA DRM.
5 *
6 * \author Dave Airlie <airlied@linux.ie> with code from patches by Egbert Eich
7 *
8 *
9 * Copyright (C) Paul Mackerras 2005
10 * Copyright (C) Egbert Eich 2003,2004
11 * Copyright (C) Dave Airlie 2005
12 * All Rights Reserved.
13 *
14 * Permission is hereby granted, free of charge, to any person obtaining a
15 * copy of this software and associated documentation files (the "Software"),
16 * to deal in the Software without restriction, including without limitation
17 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
18 * and/or sell copies of the Software, and to permit persons to whom the
19 * Software is furnished to do so, subject to the following conditions:
20 *
21 * The above copyright notice and this permission notice (including the next
22 * paragraph) shall be included in all copies or substantial portions of the
23 * Software.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
26 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
27 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
28 * THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
29 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
30 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
31 * IN THE SOFTWARE.
32 */
33#include <linux/compat.h>
34#include <linux/ioctl32.h>
35
36#include "drmP.h"
37#include "drm.h"
38#include "mga_drm.h"
39
40typedef struct drm32_mga_init {
41 int func;
42 u32 sarea_priv_offset;
43 int chipset;
44 int sgram;
45 unsigned int maccess;
46 unsigned int fb_cpp;
47 unsigned int front_offset, front_pitch;
48 unsigned int back_offset, back_pitch;
49 unsigned int depth_cpp;
50 unsigned int depth_offset, depth_pitch;
51 unsigned int texture_offset[MGA_NR_TEX_HEAPS];
52 unsigned int texture_size[MGA_NR_TEX_HEAPS];
53 u32 fb_offset;
54 u32 mmio_offset;
55 u32 status_offset;
56 u32 warp_offset;
57 u32 primary_offset;
58 u32 buffers_offset;
59} drm_mga_init32_t;
60
61static int compat_mga_init(struct file *file, unsigned int cmd,
62 unsigned long arg)
63{
64 drm_mga_init32_t init32;
65 drm_mga_init_t __user *init;
66 int err = 0, i;
67
68 if (copy_from_user(&init32, (void __user *)arg, sizeof(init32)))
69 return -EFAULT;
70
71 init = compat_alloc_user_space(sizeof(*init));
72 if (!access_ok(VERIFY_WRITE, init, sizeof(*init))
73 || __put_user(init32.func, &init->func)
74 || __put_user(init32.sarea_priv_offset, &init->sarea_priv_offset)
75 || __put_user(init32.chipset, &init->chipset)
76 || __put_user(init32.sgram, &init->sgram)
77 || __put_user(init32.maccess, &init->maccess)
78 || __put_user(init32.fb_cpp, &init->fb_cpp)
79 || __put_user(init32.front_offset, &init->front_offset)
80 || __put_user(init32.front_pitch, &init->front_pitch)
81 || __put_user(init32.back_offset, &init->back_offset)
82 || __put_user(init32.back_pitch, &init->back_pitch)
83 || __put_user(init32.depth_cpp, &init->depth_cpp)
84 || __put_user(init32.depth_offset, &init->depth_offset)
85 || __put_user(init32.depth_pitch, &init->depth_pitch)
86 || __put_user(init32.fb_offset, &init->fb_offset)
87 || __put_user(init32.mmio_offset, &init->mmio_offset)
88 || __put_user(init32.status_offset, &init->status_offset)
89 || __put_user(init32.warp_offset, &init->warp_offset)
90 || __put_user(init32.primary_offset, &init->primary_offset)
91 || __put_user(init32.buffers_offset, &init->buffers_offset))
92 return -EFAULT;
93
94 for (i=0; i<MGA_NR_TEX_HEAPS; i++)
95 {
96 err |= __put_user(init32.texture_offset[i], &init->texture_offset[i]);
97 err |= __put_user(init32.texture_size[i], &init->texture_size[i]);
98 }
99 if (err)
100 return -EFAULT;
101
102 return drm_ioctl(file->f_dentry->d_inode, file,
103 DRM_IOCTL_MGA_INIT, (unsigned long) init);
104}
105
106
107typedef struct drm_mga_getparam32 {
108 int param;
109 u32 value;
110} drm_mga_getparam32_t;
111
112
113static int compat_mga_getparam(struct file *file, unsigned int cmd,
114 unsigned long arg)
115{
116 drm_mga_getparam32_t getparam32;
117 drm_mga_getparam_t __user *getparam;
118
119 if (copy_from_user(&getparam32, (void __user *)arg, sizeof(getparam32)))
120 return -EFAULT;
121
122 getparam = compat_alloc_user_space(sizeof(*getparam));
123 if (!access_ok(VERIFY_WRITE, getparam, sizeof(*getparam))
124 || __put_user(getparam32.param, &getparam->param)
125 || __put_user((void __user *)(unsigned long)getparam32.value, &getparam->value))
126 return -EFAULT;
127
128 return drm_ioctl(file->f_dentry->d_inode, file,
129 DRM_IOCTL_MGA_GETPARAM, (unsigned long)getparam);
130}
131
132drm_ioctl_compat_t *mga_compat_ioctls[] = {
133 [DRM_MGA_INIT] = compat_mga_init,
134 [DRM_MGA_GETPARAM] = compat_mga_getparam,
135};
136
137/**
138 * Called whenever a 32-bit process running under a 64-bit kernel
139 * performs an ioctl on /dev/dri/card<n>.
140 *
141 * \param filp file pointer.
142 * \param cmd command.
143 * \param arg user argument.
144 * \return zero on success or negative number on failure.
145 */
146long mga_compat_ioctl(struct file *filp, unsigned int cmd,
147 unsigned long arg)
148{
149 unsigned int nr = DRM_IOCTL_NR(cmd);
150 drm_ioctl_compat_t *fn = NULL;
151 int ret;
152
153 if (nr < DRM_COMMAND_BASE)
154 return drm_compat_ioctl(filp, cmd, arg);
155
156 if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(mga_compat_ioctls))
157 fn = mga_compat_ioctls[nr - DRM_COMMAND_BASE];
158
159 lock_kernel(); /* XXX for now */
160 if (fn != NULL)
161 ret = (*fn)(filp, cmd, arg);
162 else
163 ret = drm_ioctl(filp->f_dentry->d_inode, filp, cmd, arg);
164 unlock_kernel();
165
166 return ret;
167}
diff --git a/drivers/char/drm/r128_drv.c b/drivers/char/drm/r128_drv.c
index ced63810237b..bc446da1b210 100644
--- a/drivers/char/drm/r128_drv.c
+++ b/drivers/char/drm/r128_drv.c
@@ -96,6 +96,9 @@ static struct drm_driver driver = {
96 .mmap = drm_mmap, 96 .mmap = drm_mmap,
97 .poll = drm_poll, 97 .poll = drm_poll,
98 .fasync = drm_fasync, 98 .fasync = drm_fasync,
99#ifdef CONFIG_COMPAT
100 .compat_ioctl = r128_compat_ioctl,
101#endif
99 }, 102 },
100 .pci_driver = { 103 .pci_driver = {
101 .name = DRIVER_NAME, 104 .name = DRIVER_NAME,
diff --git a/drivers/char/drm/r128_drv.h b/drivers/char/drm/r128_drv.h
index cf1aa5df459e..0fb687c9505e 100644
--- a/drivers/char/drm/r128_drv.h
+++ b/drivers/char/drm/r128_drv.h
@@ -156,6 +156,9 @@ extern void r128_driver_irq_uninstall( drm_device_t *dev );
156extern void r128_driver_pretakedown(drm_device_t *dev); 156extern void r128_driver_pretakedown(drm_device_t *dev);
157extern void r128_driver_prerelease(drm_device_t *dev, DRMFILE filp); 157extern void r128_driver_prerelease(drm_device_t *dev, DRMFILE filp);
158 158
159extern long r128_compat_ioctl(struct file *filp, unsigned int cmd,
160 unsigned long arg);
161
159/* Register definitions, register access macros and drmAddMap constants 162/* Register definitions, register access macros and drmAddMap constants
160 * for Rage 128 kernel driver. 163 * for Rage 128 kernel driver.
161 */ 164 */
diff --git a/drivers/char/drm/r128_ioc32.c b/drivers/char/drm/r128_ioc32.c
new file mode 100644
index 000000000000..60598ef9475a
--- /dev/null
+++ b/drivers/char/drm/r128_ioc32.c
@@ -0,0 +1,219 @@
1/**
2 * \file r128_ioc32.c
3 *
4 * 32-bit ioctl compatibility routines for the R128 DRM.
5 *
6 * \author Dave Airlie <airlied@linux.ie> with code from patches by Egbert Eich
7 *
8 * Copyright (C) Paul Mackerras 2005
9 * Copyright (C) Egbert Eich 2003,2004
10 * Copyright (C) Dave Airlie 2005
11 * All Rights Reserved.
12 *
13 * Permission is hereby granted, free of charge, to any person obtaining a
14 * copy of this software and associated documentation files (the "Software"),
15 * to deal in the Software without restriction, including without limitation
16 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
17 * and/or sell copies of the Software, and to permit persons to whom the
18 * Software is furnished to do so, subject to the following conditions:
19 *
20 * The above copyright notice and this permission notice (including the next
21 * paragraph) shall be included in all copies or substantial portions of the
22 * Software.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
25 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
26 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
27 * THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
28 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
29 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
30 * IN THE SOFTWARE.
31 */
32#include <linux/compat.h>
33#include <linux/ioctl32.h>
34
35#include "drmP.h"
36#include "drm.h"
37#include "r128_drm.h"
38
39typedef struct drm_r128_init32 {
40 int func;
41 unsigned int sarea_priv_offset;
42 int is_pci;
43 int cce_mode;
44 int cce_secure;
45 int ring_size;
46 int usec_timeout;
47
48 unsigned int fb_bpp;
49 unsigned int front_offset, front_pitch;
50 unsigned int back_offset, back_pitch;
51 unsigned int depth_bpp;
52 unsigned int depth_offset, depth_pitch;
53 unsigned int span_offset;
54
55 unsigned int fb_offset;
56 unsigned int mmio_offset;
57 unsigned int ring_offset;
58 unsigned int ring_rptr_offset;
59 unsigned int buffers_offset;
60 unsigned int agp_textures_offset;
61} drm_r128_init32_t;
62
63static int compat_r128_init(struct file *file, unsigned int cmd,
64 unsigned long arg)
65{
66 drm_r128_init32_t init32;
67 drm_r128_init_t __user *init;
68
69 if (copy_from_user(&init32, (void __user *)arg, sizeof(init32)))
70 return -EFAULT;
71
72 init = compat_alloc_user_space(sizeof(*init));
73 if (!access_ok(VERIFY_WRITE, init, sizeof(*init))
74 || __put_user(init32.func, &init->func)
75 || __put_user(init32.sarea_priv_offset, &init->sarea_priv_offset)
76 || __put_user(init32.is_pci, &init->is_pci)
77 || __put_user(init32.cce_mode, &init->cce_mode)
78 || __put_user(init32.cce_secure, &init->cce_secure)
79 || __put_user(init32.ring_size, &init->ring_size)
80 || __put_user(init32.usec_timeout, &init->usec_timeout)
81 || __put_user(init32.fb_bpp, &init->fb_bpp)
82 || __put_user(init32.front_offset, &init->front_offset)
83 || __put_user(init32.front_pitch, &init->front_pitch)
84 || __put_user(init32.back_offset, &init->back_offset)
85 || __put_user(init32.back_pitch, &init->back_pitch)
86 || __put_user(init32.depth_bpp, &init->depth_bpp)
87 || __put_user(init32.depth_offset, &init->depth_offset)
88 || __put_user(init32.depth_pitch, &init->depth_pitch)
89 || __put_user(init32.span_offset, &init->span_offset)
90 || __put_user(init32.fb_offset, &init->fb_offset)
91 || __put_user(init32.mmio_offset, &init->mmio_offset)
92 || __put_user(init32.ring_offset, &init->ring_offset)
93 || __put_user(init32.ring_rptr_offset, &init->ring_rptr_offset)
94 || __put_user(init32.buffers_offset, &init->buffers_offset)
95 || __put_user(init32.agp_textures_offset, &init->agp_textures_offset))
96 return -EFAULT;
97
98 return drm_ioctl(file->f_dentry->d_inode, file,
99 DRM_IOCTL_R128_INIT, (unsigned long)init);
100}
101
102
103typedef struct drm_r128_depth32 {
104 int func;
105 int n;
106 u32 x;
107 u32 y;
108 u32 buffer;
109 u32 mask;
110} drm_r128_depth32_t;
111
112static int compat_r128_depth(struct file *file, unsigned int cmd,
113 unsigned long arg)
114{
115 drm_r128_depth32_t depth32;
116 drm_r128_depth_t __user *depth;
117
118 if (copy_from_user(&depth32, (void __user *)arg, sizeof(depth32)))
119 return -EFAULT;
120
121 depth = compat_alloc_user_space(sizeof(*depth));
122 if (!access_ok(VERIFY_WRITE, depth, sizeof(*depth))
123 || __put_user(depth32.func, &depth->func)
124 || __put_user(depth32.n, &depth->n)
125 || __put_user((int __user *)(unsigned long)depth32.x, &depth->x)
126 || __put_user((int __user *)(unsigned long)depth32.y, &depth->y)
127 || __put_user((unsigned int __user *)(unsigned long)depth32.buffer, &depth->buffer)
128 || __put_user((unsigned char __user *)(unsigned long)depth32.mask, &depth->mask))
129 return -EFAULT;
130
131 return drm_ioctl(file->f_dentry->d_inode, file,
132 DRM_IOCTL_R128_DEPTH, (unsigned long)depth);
133
134}
135
136typedef struct drm_r128_stipple32 {
137 u32 mask;
138} drm_r128_stipple32_t;
139
140static int compat_r128_stipple(struct file *file, unsigned int cmd,
141 unsigned long arg)
142{
143 drm_r128_stipple32_t stipple32;
144 drm_r128_stipple_t __user *stipple;
145
146 if (copy_from_user(&stipple32, (void __user *)arg, sizeof(stipple32)))
147 return -EFAULT;
148
149 stipple = compat_alloc_user_space(sizeof(*stipple));
150 if (!access_ok(VERIFY_WRITE, stipple, sizeof(*stipple))
151 || __put_user((unsigned int __user *)(unsigned long)stipple32.mask, &stipple->mask))
152 return -EFAULT;
153
154 return drm_ioctl(file->f_dentry->d_inode, file,
155 DRM_IOCTL_R128_STIPPLE, (unsigned long)stipple);
156}
157
158typedef struct drm_r128_getparam32 {
159 int param;
160 u32 value;
161} drm_r128_getparam32_t;
162
163static int compat_r128_getparam(struct file *file, unsigned int cmd,
164 unsigned long arg)
165{
166 drm_r128_getparam32_t getparam32;
167 drm_r128_getparam_t __user *getparam;
168
169 if (copy_from_user(&getparam32, (void __user *)arg, sizeof(getparam32)))
170 return -EFAULT;
171
172 getparam = compat_alloc_user_space(sizeof(*getparam));
173 if (!access_ok(VERIFY_WRITE, getparam, sizeof(*getparam))
174 || __put_user(getparam32.param, &getparam->param)
175 || __put_user((void __user *)(unsigned long)getparam32.value, &getparam->value))
176 return -EFAULT;
177
178 return drm_ioctl(file->f_dentry->d_inode, file,
179 DRM_IOCTL_R128_GETPARAM, (unsigned long)getparam);
180}
181
182drm_ioctl_compat_t *r128_compat_ioctls[] = {
183 [DRM_R128_INIT] = compat_r128_init,
184 [DRM_R128_DEPTH] = compat_r128_depth,
185 [DRM_R128_STIPPLE] = compat_r128_stipple,
186 [DRM_R128_GETPARAM] = compat_r128_getparam,
187};
188
189/**
190 * Called whenever a 32-bit process running under a 64-bit kernel
191 * performs an ioctl on /dev/dri/card<n>.
192 *
193 * \param filp file pointer.
194 * \param cmd command.
195 * \param arg user argument.
196 * \return zero on success or negative number on failure.
197 */
198long r128_compat_ioctl(struct file *filp, unsigned int cmd,
199 unsigned long arg)
200{
201 unsigned int nr = DRM_IOCTL_NR(cmd);
202 drm_ioctl_compat_t *fn = NULL;
203 int ret;
204
205 if (nr < DRM_COMMAND_BASE)
206 return drm_compat_ioctl(filp, cmd, arg);
207
208 if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(r128_compat_ioctls))
209 fn = r128_compat_ioctls[nr - DRM_COMMAND_BASE];
210
211 lock_kernel(); /* XXX for now */
212 if (fn != NULL)
213 ret = (*fn)(filp, cmd, arg);
214 else
215 ret = drm_ioctl(filp->f_dentry->d_inode, filp, cmd, arg);
216 unlock_kernel();
217
218 return ret;
219}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-19 03:22:33 -0500