Running OpenGL 4.1, DRI3 With Mesa Git On An AMD Cayman GPU

As of earlier this month in Mesa Git is finally OpenGL 4.0 and 4.1 support for the Radeon R600g driver for pre-GCN hardware, albeit the subset capable of advertising GL4 compliance is right now just Cypress and Cayman. I took this opportunity to run some fresh Mesa Git benchmarks on an AMD Cayman GPU and a third run when enabling DRI3...