1 /*
2 * Copyright 2008 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
4 * Copyright 2009 Jerome Glisse.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Dave Airlie
25 * Alex Deucher
26 * Jerome Glisse
27 */
28 #include "drmP.h"
29 #include "radeon_reg.h"
30 #include "radeon.h"
31
32 /* rv770,rv730,rv710 depends on : */
33 void rs600_mc_disable_clients(struct radeon_device *rdev);
34
35 /* This files gather functions specifics to:
36 * rv770,rv730,rv710
37 *
38 * Some of these functions might be used by newer ASICs.
39 */
40 int rv770_mc_wait_for_idle(struct radeon_device *rdev);
41 void rv770_gpu_init(struct radeon_device *rdev);
42
43
44 /*
45 * MC
46 */
47 int rv770_mc_init(struct radeon_device *rdev)
48 {
49 uint32_t tmp;
50
51 rv770_gpu_init(rdev);
52
53 /* setup the gart before changing location so we can ask to
54 * discard unmapped mc request
55 */
56 /* FIXME: disable out of gart access */
57 tmp = rdev->mc.gtt_location / 4096;
58 tmp = REG_SET(R700_LOGICAL_PAGE_NUMBER, tmp);
59 WREG32(R700_MC_VM_SYSTEM_APERTURE_LOW_ADDR, tmp);
60 tmp = (rdev->mc.gtt_location + rdev->mc.gtt_size) / 4096;
61 tmp = REG_SET(R700_LOGICAL_PAGE_NUMBER, tmp);
62 WREG32(R700_MC_VM_SYSTEM_APERTURE_HIGH_ADDR, tmp);
63
64 rs600_mc_disable_clients(rdev);
65 if (rv770_mc_wait_for_idle(rdev)) {
66 printk(KERN_WARNING "Failed to wait MC idle while "
67 "programming pipes. Bad things might happen.\n");
68 }
69
70 tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
71 tmp = REG_SET(R700_MC_FB_TOP, tmp >> 24);
72 tmp |= REG_SET(R700_MC_FB_BASE, rdev->mc.vram_location >> 24);
73 WREG32(R700_MC_VM_FB_LOCATION, tmp);
74 tmp = rdev->mc.gtt_location + rdev->mc.gtt_size - 1;
75 tmp = REG_SET(R700_MC_AGP_TOP, tmp >> 22);
76 WREG32(R700_MC_VM_AGP_TOP, tmp);
77 tmp = REG_SET(R700_MC_AGP_BOT, rdev->mc.gtt_location >> 22);
78 WREG32(R700_MC_VM_AGP_BOT, tmp);
79 return 0;
80 }
81
82 void rv770_mc_fini(struct radeon_device *rdev)
83 {
84 /* FIXME: implement */
85 }
86
87
88 /*
89 * Global GPU functions
90 */
91 void rv770_errata(struct radeon_device *rdev)
92 {
93 rdev->pll_errata = 0;
94 }
95
96 int rv770_mc_wait_for_idle(struct radeon_device *rdev)
97 {
98 /* FIXME: implement */
99 return 0;
100 }
101
102 void rv770_gpu_init(struct radeon_device *rdev)
103 {
104 /* FIXME: implement */
105 }
106
107
108 /*
109 * VRAM info
110 */
111 void rv770_vram_get_type(struct radeon_device *rdev)
112 {
113 /* FIXME: implement */
114 }
115
116 void rv770_vram_info(struct radeon_device *rdev)
117 {
118 rv770_vram_get_type(rdev);
119
120 /* FIXME: implement */
121 /* Could aper size report 0 ? */
122 rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
123 rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
124 }
125
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