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authorJerome Glisse <jglisse@redhat.com>2009-06-05 08:42:42 -0400
committerDave Airlie <airlied@redhat.com>2009-06-14 22:01:53 -0400
commit771fe6b912fca54f03e8a72eb63058b582775362 (patch)
tree58aa5469ba8058c2b564d50807395ad6cd7bd7e4 /drivers/gpu/drm/radeon/radeon_agp.c
parentba4e7d973dd09b66912ac4c0856add8b0703a997 (diff)
drm/radeon: introduce kernel modesetting for radeon hardware
Add kernel modesetting support to radeon driver, use the ttm memory manager to manage memory and DRM/GEM to provide userspace API. In order to avoid backward compatibility issue and to allow clean design and code the radeon kernel modesetting use different code path than old radeon/drm driver. When kernel modesetting is enabled the IOCTL of radeon/drm driver are considered as invalid and an error message is printed in the log and they return failure. KMS enabled userspace will use new API to talk with the radeon/drm driver. The new API provide functions to create/destroy/share/mmap buffer object which are then managed by the kernel memory manager (here TTM). In order to submit command to the GPU the userspace provide a buffer holding the command stream, along this buffer userspace have to provide a list of buffer object used by the command stream. The kernel radeon driver will then place buffer in GPU accessible memory and will update command stream to reflect the position of the different buffers. The kernel will also perform security check on command stream provided by the user, we want to catch and forbid any illegal use of the GPU such as DMA into random system memory or into memory not owned by the process supplying the command stream. This part of the code is still incomplete and this why we propose that patch as a staging driver addition, future security might forbid current experimental userspace to run. This code support the following hardware : R1XX,R2XX,R3XX,R4XX,R5XX (radeon up to X1950). Works is underway to provide support for R6XX, R7XX and newer hardware (radeon from HD2XXX to HD4XXX). Authors: Jerome Glisse <jglisse@redhat.com> Dave Airlie <airlied@redhat.com> Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_agp.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_agp.c249
1 files changed, 249 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c
new file mode 100644
index 000000000000..23ea9955ac59
--- /dev/null
+++ b/drivers/gpu/drm/radeon/radeon_agp.c
@@ -0,0 +1,249 @@
1/*
2 * Copyright 2008 Red Hat Inc.
3 * Copyright 2009 Jerome Glisse.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * Dave Airlie
25 * Jerome Glisse <glisse@freedesktop.org>
26 */
27#include "drmP.h"
28#include "drm.h"
29#include "radeon.h"
30#include "radeon_drm.h"
31
32#if __OS_HAS_AGP
33
34struct radeon_agpmode_quirk {
35 u32 hostbridge_vendor;
36 u32 hostbridge_device;
37 u32 chip_vendor;
38 u32 chip_device;
39 u32 subsys_vendor;
40 u32 subsys_device;
41 u32 default_mode;
42};
43
44static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
45 /* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
46 { PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
47 /* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
48 { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
49 /* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
50 { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
51 0x148c, 0x2073, 4},
52 /* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
53 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
54 PCI_VENDOR_ID_IBM, 0x052f, 1},
55 /* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
56 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
57 PCI_VENDOR_ID_IBM, 0x0550, 1},
58 /* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
59 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
60 PCI_VENDOR_ID_IBM, 0x0530, 1},
61 /* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
62 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
63 PCI_VENDOR_ID_IBM, 0x054f, 2},
64 /* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
65 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
66 PCI_VENDOR_ID_SONY, 0x816b, 2},
67 /* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
68 { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
69 PCI_VENDOR_ID_SONY, 0x8195, 8},
70 /* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
71 { PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
72 PCI_VENDOR_ID_DELL, 0x00e3, 2},
73 /* Intel 82852/82855 host bridge / Mobility FireGL 9000 R250 Needs AGPMode 1 (lp #296617) */
74 { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
75 PCI_VENDOR_ID_DELL, 0x0149, 1},
76 /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
77 { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
78 0x1025, 0x0061, 1},
79 /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
80 { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
81 0x1025, 0x0064, 1},
82 /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
83 { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
84 PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
85 /* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
86 { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
87 0x10cf, 0x127f, 1},
88 /* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
89 { 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
90 0x1787, 0x5960, 4},
91 /* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
92 { PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
93 0x17af, 0x2020, 4},
94 /* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
95 { PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
96 PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
97 /* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
98 { PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
99 PCI_VENDOR_ID_ATI, 0x013a, 2},
100 /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
101 { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
102 PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
103 /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
104 { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
105 PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
106 /* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
107 { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
108 0x174b, 0x7149, 4},
109 /* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
110 { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
111 0x1462, 0x0380, 4},
112 /* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
113 { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
114 0x148c, 0x2073, 4},
115 /* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
116 { PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
117 PCI_VENDOR_ID_SONY, 0x8175, 1},
118 /* HP Host Bridge / R300 [FireGL X1] Needs AGPMode 2 (fdo #7770) */
119 { PCI_VENDOR_ID_HP, 0x122e, PCI_VENDOR_ID_ATI, 0x4e47,
120 PCI_VENDOR_ID_ATI, 0x0152, 2},
121 { 0, 0, 0, 0, 0, 0, 0 },
122};
123#endif
124
125int radeon_agp_init(struct radeon_device *rdev)
126{
127#if __OS_HAS_AGP
128 struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list;
129 struct drm_agp_mode mode;
130 struct drm_agp_info info;
131 uint32_t agp_status;
132 int default_mode;
133 bool is_v3;
134 int ret;
135
136 /* Acquire AGP. */
137 if (!rdev->ddev->agp->acquired) {
138 ret = drm_agp_acquire(rdev->ddev);
139 if (ret) {
140 DRM_ERROR("Unable to acquire AGP: %d\n", ret);
141 return ret;
142 }
143 }
144
145 ret = drm_agp_info(rdev->ddev, &info);
146 if (ret) {
147 DRM_ERROR("Unable to get AGP info: %d\n", ret);
148 return ret;
149 }
150 mode.mode = info.mode;
151 agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
152 is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
153
154 if (is_v3) {
155 default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4;
156 } else {
157 if (agp_status & RADEON_AGP_4X_MODE) {
158 default_mode = 4;
159 } else if (agp_status & RADEON_AGP_2X_MODE) {
160 default_mode = 2;
161 } else {
162 default_mode = 1;
163 }
164 }
165
166 /* Apply AGPMode Quirks */
167 while (p && p->chip_device != 0) {
168 if (info.id_vendor == p->hostbridge_vendor &&
169 info.id_device == p->hostbridge_device &&
170 rdev->pdev->vendor == p->chip_vendor &&
171 rdev->pdev->device == p->chip_device &&
172 rdev->pdev->subsystem_vendor == p->subsys_vendor &&
173 rdev->pdev->subsystem_device == p->subsys_device) {
174 default_mode = p->default_mode;
175 }
176 ++p;
177 }
178
179 if (radeon_agpmode > 0) {
180 if ((radeon_agpmode < (is_v3 ? 4 : 1)) ||
181 (radeon_agpmode > (is_v3 ? 8 : 4)) ||
182 (radeon_agpmode & (radeon_agpmode - 1))) {
183 DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n",
184 radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4",
185 default_mode);
186 radeon_agpmode = default_mode;
187 } else {
188 DRM_INFO("AGP mode requested: %d\n", radeon_agpmode);
189 }
190 } else {
191 radeon_agpmode = default_mode;
192 }
193
194 mode.mode &= ~RADEON_AGP_MODE_MASK;
195 if (is_v3) {
196 switch (radeon_agpmode) {
197 case 8:
198 mode.mode |= RADEON_AGPv3_8X_MODE;
199 break;
200 case 4:
201 default:
202 mode.mode |= RADEON_AGPv3_4X_MODE;
203 break;
204 }
205 } else {
206 switch (radeon_agpmode) {
207 case 4:
208 mode.mode |= RADEON_AGP_4X_MODE;
209 break;
210 case 2:
211 mode.mode |= RADEON_AGP_2X_MODE;
212 break;
213 case 1:
214 default:
215 mode.mode |= RADEON_AGP_1X_MODE;
216 break;
217 }
218 }
219
220 mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */
221 ret = drm_agp_enable(rdev->ddev, mode);
222 if (ret) {
223 DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode);
224 return ret;
225 }
226
227 rdev->mc.agp_base = rdev->ddev->agp->agp_info.aper_base;
228 rdev->mc.gtt_size = rdev->ddev->agp->agp_info.aper_size << 20;
229
230 /* workaround some hw issues */
231 if (rdev->family < CHIP_R200) {
232 WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000);
233 }
234 return 0;
235#else
236 return 0;
237#endif
238}
239
240void radeon_agp_fini(struct radeon_device *rdev)
241{
242#if __OS_HAS_AGP
243 if (rdev->flags & RADEON_IS_AGP) {
244 if (rdev->ddev->agp && rdev->ddev->agp->acquired) {
245 drm_agp_release(rdev->ddev);
246 }
247 }
248#endif
249}
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