Introduction If you were waiting for a new post to learn something new about Intel GEN graphics, I am sorry. I started moving away from i915 kernel development about one year ago. Although I had worked landed patches in mesa before, it has taken me some time to get to a point where I had […]
I’ve had this post sitting in my drafts for the last 7 months. The code is stale, but the concepts are correct. I had intended to add some pictures before posting, but it’s clear that won’t happen now. Words are better than nothing, I suppose… Recently I pushed an intel-gpu-tool tool for modifying GPU frequencies. […]
For those of you reading this that didn’t know, I’ve had two months of paid vacation – one of the real perks of working for Intel. Today is the last day. It is as hard as I thought it would be. Most of the vacation was spent vacationing. As I have access to none of […]
Preface GPU mirroring provides a mechanism to have the CPU and the GPU use the same virtual address for the same physical (or IOMMU) page. An immediate result of this is that relocations can be eliminated. There are a few derivative benefits from the removal of the relocation mechanism, but it really all boils down […]
I don’t know if I’ve ever eaten my own dogfood that smells this risky. A few days ago, I published patches to support dynamic page table allocation and tear-down in the i915 driver http://lists.freedesktop.org/archives/intel-gfx/2014-March/041814.html. This work will eventually help us support expanded page tables (similar to how things work for normal Linux page tables). The […]