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Make GraphicsBitmaps be Region-backed when running in the kernel.

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This is a lot better than having them in kmalloc memory. I'm gonna need
a way to keep track of which process owns which bitmap eventually,
maybe through some sort of resource keying system. We'll see.
This commit is contained in:
Andreas Kling
2019-01-13 00:27:25 +01:00
parent e4cb9b2985
commit becc2c7fa5
7 changed files with 30 additions and 3 deletions
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4
Kernel/Process.cpp
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@@ -68,6 +68,7 @@ Vector<Process*> Process::allProcesses()
Region* Process::allocate_region(LinearAddress laddr, size_t size, String&& name, bool is_readable, bool is_writable, bool commit)
{
size = PAGE_ROUND_UP(size);
// FIXME: This needs sanity checks. What if this overlaps existing regions?
if (laddr.is_null()) {
laddr = m_nextRegion;
@@ -84,7 +85,7 @@ Region* Process::allocate_region(LinearAddress laddr, size_t size, String&& name
Region* Process::allocate_file_backed_region(LinearAddress laddr, size_t size, RetainPtr<Vnode>&& vnode, String&& name, bool is_readable, bool is_writable)
{
ASSERT(!vnode->isCharacterDevice());
size = PAGE_ROUND_UP(size);
// FIXME: This needs sanity checks. What if this overlaps existing regions?
if (laddr.is_null()) {
laddr = m_nextRegion;
@@ -99,6 +100,7 @@ Region* Process::allocate_file_backed_region(LinearAddress laddr, size_t size, R
Region* Process::allocate_region_with_vmo(LinearAddress laddr, size_t size, RetainPtr<VMObject>&& vmo, size_t offset_in_vmo, String&& name, bool is_readable, bool is_writable)
{
ASSERT(vmo);
size = PAGE_ROUND_UP(size);
// FIXME: This needs sanity checks. What if this overlaps existing regions?
if (laddr.is_null()) {
laddr = m_nextRegion;