Commit graph

10 commits

Author SHA1 Message Date
Andreas Kling
6f2c7ecbbb Kernel: Make TextModeConsole store VGA window base as VirtualAddress 2021-09-08 20:16:00 +02:00
Andreas Kling
3e07b04564 Kernel: Remove some unused code in Graphics::TextModeConsole 2021-09-08 20:16:00 +02:00
Brian Gianforcaro
bb58a4d943 Kernel: Make all Spinlocks use u8 for storage, remove template
The default template argument is only used in one place, and it
looks like it was probably just an oversight. The rest of the Kernel
code all uses u8 as the type. So lets make that the default and remove
the unused template argument, as there doesn't seem to be a reason to
allow the size to be customizable.
2021-09-05 20:46:02 +02:00
Andreas Kling
55adace359 Kernel: Rename SpinLock => Spinlock 2021-08-22 03:34:10 +02:00
Jean-Baptiste Boric
2c3b0baf76 Kernel: Move SpinLock.h into Locking/ 2021-08-07 11:48:00 +02:00
Sahan Fernando
b9ad6058aa Kernel: Add VirtIOGPU graphics device 2021-06-25 19:26:30 +02:00
Sahan Fernando
34e9fa4d3b Kernel: Abstract FramebufferConsole away from contiguous physical range
Currently, Kernel::Graphics::FramebufferConsole is written assuming that
the underlying framebuffer memory exists in physically contiguous
memory. There are a bunch of framebuffer devices that would need to use
the components of FramebufferConsole (in particular access to the kernel
bitmap font rendering logic). To reduce code duplication, framebuffer
console has been split into two parts, the abstract
GenericFramebufferConsole class which does the rendering, and the
ContiguousFramebufferConsole class which contains all logic related to
managing the underling vm object.

Also, a new flush method has been added to the class, to support devices
that require an extra flush step to render.
2021-06-25 19:26:30 +02:00
Liav A
47c1a31f89 Kernel: Support new lines when doing critical printing
If we are printing strings in the critical path, handling new lines
require us to break abstraction a bit to print new lines.

Fixes #7562.
2021-06-03 16:16:22 +01:00
Liav A
e8d85b0694 Kernel/Graphics: Remove unused overloaded write methods of Console
If we happen to print a string, we could use a StringView instead. For
now, let's remove them entirely.
2021-06-03 16:16:22 +01:00
Liav A
20743e8aed Kernel/Graphics + SystemServer: Support text mode properly
As we removed the support of VBE modesetting that was done by GRUB early
on boot, we need to determine if we can modeset the resolution with our
drivers, and if not, we should enable text mode and ensure that
SystemServer knows about it too.

Also, SystemServer should first check if there's a framebuffer device
node, which is an indication that text mode was not even if it was
requested. Then, if it doesn't find it, it should check what boot_mode
argument the user specified (in case it's self-test). This way if we
try to use bochs-display device (which is not VGA compatible) and
request a text mode, it will not honor the request and will continue
with graphical mode.

Also try to print critical messages with mininum memory allocations
possible.

In LibVT, We make the implementation flexible for kernel-specific
methods that are implemented in ConsoleImpl class.
2021-05-16 19:58:33 +02:00