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gralloc: Send first 2 FB buffers to carveout and next to IOMMU

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Gralloc uses the GRALLOC_USAGE_HW_FB flag to allocate memory from carveout.
This is fine for primary framebuffer, but for external framebuffer we need IOMMU
heap buffers, since the ioctls for external work with those.

Ideally, the primary buffers also need to come from IOMMU heap, which is ongoing
work. This patch allocates the first 2 FB buffer requests (assuming they are for
primary) from carveout and allocates all subsequent buffers from IOMMU heap.

Bug: 7124159
Change-Id: Ie53b2e1e7fcac136acd2d251f39cefe367fc7125
Signed-off-by: Iliyan Malchev <malchev@google.com>
This commit is contained in:
Saurabh Shah
2012-10-02 14:32:40 -07:00
committed by Iliyan Malchev
parent 32aa90fc54
commit d80a52cbf9
2 changed files with 5 additions and 2 deletions
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2
libgralloc/framebuffer.cpp
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@@ -322,7 +322,7 @@ int mapFrameBufferLocked(struct private_module_t* module)
*/
int err;
module->numBuffers = info.yres_virtual / info.yres;
module->numBuffers = 2;
module->bufferMask = 0;
//adreno needs page aligned offsets. Align the fbsize to pagesize.
size_t fbSize = roundUpToPageSize(finfo.line_length * info.yres)*