Add polling support to NVMe so that it does not use interrupt to
complete a IO but instead actively polls for completion. This probably
is not very efficient in terms of CPU usage but it does not use
interrupts to complete a IO which is beneficial at the moment as there
is no MSI(X) support and it can reduce the latency of an IO in a very
fast NVMe device.
The NVMeQueue class has been made the base class for NVMeInterruptQueue
and NVMePollQueue. The factory function `NVMeQueue::try_create` will
return the appropriate queue to the controller based on the polling
boot parameter.
The polling mode can be enabled by adding an extra boot parameter:
`nvme_poll`.
There is no use in calling disable_irq function in the IRQHandler
constructor if irq was not registered before. So add a condition where
we call disable_irq only if the irq was registered before.
As we don't currently support MSI(X) interrupts, it could be an issue
to boot on some newer hardware. NVMe devices support polling mode
where the driver actively polls for completion instead of waiting for
an interrupt.
At the point at which `mount -a` is executed by SystemServer, the
/proc fs is not yet mounted. That means that opening /proc/fd in
the `print_mounts()` function will always fail with an error.
0.976 mount(8:8): Exiting with runtime error:
No such file or directory (errno=2)
The fix is simple, just return gracefully after we execute mount all.
When a page fault led to the mapping of a new physical page, we were
updating the page tables for *every* region that shared the same
underlying VMObject.
Let's just not do that, avoiding a bunch of unnecessary page table
updates and TLB invalidations.
As mentioned in today's monthly update video, the Open With menu
doesn't show Pixel Paint for most image file types.
This commit brings it in sync with Image Viewer,
since everything seems to open correctly anyway :)
This returns a more comprehensible name than raw weight and slope
metrics and is intended for use in UIs. Now displays human readable
font names in FontSettings, TerminalSettings and CharacterMap.
Adjust 066E, 067A-0680, make sure all characters based on BEH 0628
has the same base form.
Move 0642 up 1 px for alignment with the rest of the glyphs.
Change codepoint for 06A5 to 06A4 and 06A6 to 06A5
The spec defines a StringToBigInt AO which allows for converting binary,
octal, decimal, and hexadecimal strings to a BigInt. Our conversion was
only allowing for decimal strings.
Two of our most frequently allocated objects are Shape (88 bytes)
and DeclarativeEnvironment (80 bytes). Putting these into 128-byte
cells was quite wasteful, so let's add a more suitable allocator
for them.
We don't need to support more than 2^32 object properties anyway, so
there's no point in using 64-bit property counts.
This small reduction in memory usage makes test-js run ~10% faster on
x86_64 locally.
Using an Optional was extremely wasteful for function objects that don't
even have a bytecode executable.
This allows ECMAScriptFunctionObject to fit in a smaller size class.
