1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
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
|
// SPDX-License-Identifier: MIT
/*
* Copyright (C) 2013-2017 Oracle Corporation
* This file is based on ast_main.c
* Copyright 2012 Red Hat Inc.
* Authors: Dave Airlie <airlied@redhat.com>,
* Michael Thayer <michael.thayer@oracle.com,
* Hans de Goede <hdegoede@redhat.com>
*/
#include <linux/pci.h>
#include <linux/vbox_err.h>
#include <drm/drm_damage_helper.h>
#include "vbox_drv.h"
#include "vboxvideo_guest.h"
#include "vboxvideo_vbe.h"
void vbox_report_caps(struct vbox_private *vbox)
{
u32 caps = VBVACAPS_DISABLE_CURSOR_INTEGRATION |
VBVACAPS_IRQ | VBVACAPS_USE_VBVA_ONLY;
/* The host only accepts VIDEO_MODE_HINTS if it is send separately. */
hgsmi_send_caps_info(vbox->guest_pool, caps);
caps |= VBVACAPS_VIDEO_MODE_HINTS;
hgsmi_send_caps_info(vbox->guest_pool, caps);
}
static int vbox_accel_init(struct vbox_private *vbox)
{
struct pci_dev *pdev = to_pci_dev(vbox->ddev.dev);
struct vbva_buffer *vbva;
unsigned int i;
vbox->vbva_info = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
sizeof(*vbox->vbva_info), GFP_KERNEL);
if (!vbox->vbva_info)
return -ENOMEM;
/* Take a command buffer for each screen from the end of usable VRAM. */
vbox->available_vram_size -= vbox->num_crtcs * VBVA_MIN_BUFFER_SIZE;
vbox->vbva_buffers = pci_iomap_range(pdev, 0,
vbox->available_vram_size,
vbox->num_crtcs *
VBVA_MIN_BUFFER_SIZE);
if (!vbox->vbva_buffers)
return -ENOMEM;
for (i = 0; i < vbox->num_crtcs; ++i) {
vbva_setup_buffer_context(&vbox->vbva_info[i],
vbox->available_vram_size +
i * VBVA_MIN_BUFFER_SIZE,
VBVA_MIN_BUFFER_SIZE);
vbva = (void __force *)vbox->vbva_buffers +
i * VBVA_MIN_BUFFER_SIZE;
if (!vbva_enable(&vbox->vbva_info[i],
vbox->guest_pool, vbva, i)) {
/* very old host or driver error. */
DRM_ERROR("vboxvideo: vbva_enable failed\n");
}
}
return 0;
}
static void vbox_accel_fini(struct vbox_private *vbox)
{
unsigned int i;
for (i = 0; i < vbox->num_crtcs; ++i)
vbva_disable(&vbox->vbva_info[i], vbox->guest_pool, i);
}
/* Do we support the 4.3 plus mode hint reporting interface? */
static bool have_hgsmi_mode_hints(struct vbox_private *vbox)
{
u32 have_hints, have_cursor;
int ret;
ret = hgsmi_query_conf(vbox->guest_pool,
VBOX_VBVA_CONF32_MODE_HINT_REPORTING,
&have_hints);
if (ret)
return false;
ret = hgsmi_query_conf(vbox->guest_pool,
VBOX_VBVA_CONF32_GUEST_CURSOR_REPORTING,
&have_cursor);
if (ret)
return false;
return have_hints == VINF_SUCCESS && have_cursor == VINF_SUCCESS;
}
bool vbox_check_supported(u16 id)
{
u16 dispi_id;
vbox_write_ioport(VBE_DISPI_INDEX_ID, id);
dispi_id = inw(VBE_DISPI_IOPORT_DATA);
return dispi_id == id;
}
int vbox_hw_init(struct vbox_private *vbox)
{
struct pci_dev *pdev = to_pci_dev(vbox->ddev.dev);
int ret = -ENOMEM;
vbox->full_vram_size = inl(VBE_DISPI_IOPORT_DATA);
vbox->any_pitch = vbox_check_supported(VBE_DISPI_ID_ANYX);
DRM_INFO("VRAM %08x\n", vbox->full_vram_size);
/* Map guest-heap at end of vram */
vbox->guest_heap =
pci_iomap_range(pdev, 0, GUEST_HEAP_OFFSET(vbox),
GUEST_HEAP_SIZE);
if (!vbox->guest_heap)
return -ENOMEM;
/* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
vbox->guest_pool = devm_gen_pool_create(vbox->ddev.dev, 4, -1,
"vboxvideo-accel");
if (IS_ERR(vbox->guest_pool))
return PTR_ERR(vbox->guest_pool);
ret = gen_pool_add_virt(vbox->guest_pool,
(unsigned long)vbox->guest_heap,
GUEST_HEAP_OFFSET(vbox),
GUEST_HEAP_USABLE_SIZE, -1);
if (ret)
return ret;
ret = hgsmi_test_query_conf(vbox->guest_pool);
if (ret) {
DRM_ERROR("vboxvideo: hgsmi_test_query_conf failed\n");
return ret;
}
/* Reduce available VRAM size to reflect the guest heap. */
vbox->available_vram_size = GUEST_HEAP_OFFSET(vbox);
/* Linux drm represents monitors as a 32-bit array. */
hgsmi_query_conf(vbox->guest_pool, VBOX_VBVA_CONF32_MONITOR_COUNT,
&vbox->num_crtcs);
vbox->num_crtcs = clamp_t(u32, vbox->num_crtcs, 1, VBOX_MAX_SCREENS);
if (!have_hgsmi_mode_hints(vbox)) {
ret = -ENOTSUPP;
return ret;
}
vbox->last_mode_hints = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
sizeof(struct vbva_modehint),
GFP_KERNEL);
if (!vbox->last_mode_hints)
return -ENOMEM;
ret = vbox_accel_init(vbox);
if (ret)
return ret;
return 0;
}
void vbox_hw_fini(struct vbox_private *vbox)
{
vbox_accel_fini(vbox);
}
|
