forked from SerenityOS/serenity
-
Notifications
You must be signed in to change notification settings - Fork 0
/
GraphicsAdapter.cpp
194 lines (175 loc) · 8.03 KB
/
GraphicsAdapter.cpp
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
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
/*
* Copyright (c) 2021, Liav A. <[email protected]>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Atomic.h>
#include <AK/Checked.h>
#include <AK/Try.h>
#include <Kernel/Bus/PCI/API.h>
#include <Kernel/Bus/PCI/BarMapping.h>
#include <Kernel/Bus/PCI/IDs.h>
#include <Kernel/Devices/GPU/Console/ContiguousFramebufferConsole.h>
#include <Kernel/Devices/GPU/Management.h>
#include <Kernel/Devices/GPU/VMWare/Definitions.h>
#include <Kernel/Devices/GPU/VMWare/DisplayConnector.h>
#include <Kernel/Devices/GPU/VMWare/GraphicsAdapter.h>
#include <Kernel/Library/IOWindow.h>
#include <Kernel/Memory/TypedMapping.h>
#include <Kernel/Sections.h>
namespace Kernel {
ErrorOr<bool> VMWareGraphicsAdapter::probe(PCI::DeviceIdentifier const& pci_device_identifier)
{
PCI::HardwareID id = pci_device_identifier.hardware_id();
// Note: We only support VMWare SVGA II adapter
return id.vendor_id == PCI::VendorID::VMWare && id.device_id == 0x0405;
}
ErrorOr<NonnullLockRefPtr<GPUDevice>> VMWareGraphicsAdapter::create(PCI::DeviceIdentifier const& pci_device_identifier)
{
auto registers_io_window = TRY(IOWindow::create_for_pci_device_bar(pci_device_identifier, PCI::HeaderType0BaseRegister::BAR0));
auto adapter = TRY(adopt_nonnull_lock_ref_or_enomem(new (nothrow) VMWareGraphicsAdapter(pci_device_identifier, move(registers_io_window))));
TRY(adapter->initialize_adapter());
return adapter;
}
UNMAP_AFTER_INIT VMWareGraphicsAdapter::VMWareGraphicsAdapter(PCI::DeviceIdentifier const& pci_device_identifier, NonnullOwnPtr<IOWindow> registers_io_window)
: PCI::Device(const_cast<PCI::DeviceIdentifier&>(pci_device_identifier))
, m_registers_io_window(move(registers_io_window))
{
dbgln("VMWare SVGA @ {}, {}", pci_device_identifier.address(), m_registers_io_window);
}
u32 VMWareGraphicsAdapter::read_io_register(VMWareDisplayRegistersOffset register_offset) const
{
SpinlockLocker locker(m_io_access_lock);
m_registers_io_window->write32(0, to_underlying(register_offset));
return m_registers_io_window->read32_unaligned(1);
}
void VMWareGraphicsAdapter::write_io_register(VMWareDisplayRegistersOffset register_offset, u32 value)
{
SpinlockLocker locker(m_io_access_lock);
m_registers_io_window->write32(0, to_underlying(register_offset));
m_registers_io_window->write32_unaligned(1, value);
}
UNMAP_AFTER_INIT ErrorOr<void> VMWareGraphicsAdapter::negotiate_device_version()
{
write_io_register(VMWareDisplayRegistersOffset::ID, vmware_svga_version_2_id);
auto accepted_version = read_io_register(VMWareDisplayRegistersOffset::ID);
dbgln("VMWare SVGA @ {}: Accepted version {}", device_identifier().address(), accepted_version);
if (read_io_register(VMWareDisplayRegistersOffset::ID) == vmware_svga_version_2_id)
return {};
return Error::from_errno(ENOTSUP);
}
UNMAP_AFTER_INIT ErrorOr<void> VMWareGraphicsAdapter::initialize_fifo_registers()
{
auto framebuffer_size = read_io_register(VMWareDisplayRegistersOffset::FB_SIZE);
auto fifo_size = read_io_register(VMWareDisplayRegistersOffset::MEM_SIZE);
auto fifo_physical_address = TRY(PCI::get_bar_address(device_identifier(), PCI::HeaderType0BaseRegister::BAR2));
dbgln("VMWare SVGA @ {}: framebuffer size {} bytes, FIFO size {} bytes @ {}", device_identifier().address(), framebuffer_size, fifo_size, fifo_physical_address);
if (framebuffer_size < 0x100000 || fifo_size < 0x10000) {
dbgln("VMWare SVGA @ {}: invalid framebuffer or fifo size", device_identifier().address());
return Error::from_errno(ENOTSUP);
}
m_fifo_registers = TRY(PCI::map_bar<VMWareDisplayFIFORegisters volatile>(device_identifier(), PCI::HeaderType0BaseRegister::BAR2, fifo_size));
m_fifo_registers->start = 16;
m_fifo_registers->size = 16 + (10 * 1024);
m_fifo_registers->next_command = 16;
m_fifo_registers->stop = 16;
return {};
}
UNMAP_AFTER_INIT void VMWareGraphicsAdapter::print_svga_capabilities() const
{
auto svga_capabilities = read_io_register(VMWareDisplayRegistersOffset::CAPABILITIES);
dbgln("VMWare SVGA capabilities (raw {:x}):", svga_capabilities);
if (svga_capabilities & (1 << 1))
dbgln("\tRect copy");
if (svga_capabilities & (1 << 5))
dbgln("\tCursor");
if (svga_capabilities & (1 << 6))
dbgln("\tCursor Bypass");
if (svga_capabilities & (1 << 7))
dbgln("\tCursor Bypass 2");
if (svga_capabilities & (1 << 8))
dbgln("\t8 Bit emulation");
if (svga_capabilities & (1 << 9))
dbgln("\tAlpha Cursor");
if (svga_capabilities & (1 << 14))
dbgln("\t3D acceleration");
if (svga_capabilities & (1 << 15))
dbgln("\tExtended FIFO");
if (svga_capabilities & (1 << 16))
dbgln("\tMulti-monitor (legacy)");
if (svga_capabilities & (1 << 17))
dbgln("\tPitch lock");
if (svga_capabilities & (1 << 18))
dbgln("\tIRQ masking");
if (svga_capabilities & (1 << 19))
dbgln("\tDisplay topology");
if (svga_capabilities & (1 << 20))
dbgln("\tGMR");
if (svga_capabilities & (1 << 21))
dbgln("\tTraces");
if (svga_capabilities & (1 << 22))
dbgln("\tGMR2");
if (svga_capabilities & (1 << 23))
dbgln("\tScreen object 2");
}
ErrorOr<void> VMWareGraphicsAdapter::modeset_primary_screen_resolution(Badge<VMWareDisplayConnector>, size_t width, size_t height)
{
auto max_width = read_io_register(VMWareDisplayRegistersOffset::MAX_WIDTH);
auto max_height = read_io_register(VMWareDisplayRegistersOffset::MAX_HEIGHT);
if (width > max_width || height > max_height)
return Error::from_errno(ENOTSUP);
modeset_primary_screen_resolution(width, height);
return {};
}
size_t VMWareGraphicsAdapter::primary_screen_width(Badge<VMWareDisplayConnector>) const
{
SpinlockLocker locker(m_operation_lock);
return read_io_register(VMWareDisplayRegistersOffset::WIDTH);
}
size_t VMWareGraphicsAdapter::primary_screen_height(Badge<VMWareDisplayConnector>) const
{
SpinlockLocker locker(m_operation_lock);
return read_io_register(VMWareDisplayRegistersOffset::HEIGHT);
}
size_t VMWareGraphicsAdapter::primary_screen_pitch(Badge<VMWareDisplayConnector>) const
{
SpinlockLocker locker(m_operation_lock);
return read_io_register(VMWareDisplayRegistersOffset::BYTES_PER_LINE);
}
void VMWareGraphicsAdapter::primary_screen_flush(Badge<VMWareDisplayConnector>, size_t current_width, size_t current_height)
{
SpinlockLocker locker(m_operation_lock);
m_fifo_registers->start = 16;
m_fifo_registers->size = 16 + (10 * 1024);
m_fifo_registers->next_command = 16 + 4 * 5;
m_fifo_registers->stop = 16;
m_fifo_registers->commands[0] = 1;
m_fifo_registers->commands[1] = 0;
m_fifo_registers->commands[2] = 0;
m_fifo_registers->commands[3] = current_width;
m_fifo_registers->commands[4] = current_height;
write_io_register(VMWareDisplayRegistersOffset::SYNC, 1);
}
void VMWareGraphicsAdapter::modeset_primary_screen_resolution(size_t width, size_t height)
{
SpinlockLocker locker(m_operation_lock);
write_io_register(VMWareDisplayRegistersOffset::ENABLE, 0);
write_io_register(VMWareDisplayRegistersOffset::WIDTH, width);
write_io_register(VMWareDisplayRegistersOffset::HEIGHT, height);
write_io_register(VMWareDisplayRegistersOffset::BITS_PER_PIXEL, 32);
write_io_register(VMWareDisplayRegistersOffset::ENABLE, 1);
write_io_register(VMWareDisplayRegistersOffset::CONFIG_DONE, 1);
}
UNMAP_AFTER_INIT ErrorOr<void> VMWareGraphicsAdapter::initialize_adapter()
{
TRY(negotiate_device_version());
print_svga_capabilities();
TRY(initialize_fifo_registers());
// Note: enable the device by modesetting the primary screen resolution
modeset_primary_screen_resolution(640, 480);
auto bar1_space_size = PCI::get_BAR_space_size(device_identifier(), PCI::HeaderType0BaseRegister::BAR1);
m_display_connector = VMWareDisplayConnector::must_create(*this, TRY(PCI::get_bar_address(device_identifier(), PCI::HeaderType0BaseRegister::BAR1)), bar1_space_size);
TRY(m_display_connector->set_safe_mode_setting());
return {};
}
}