git bisect start '--' 'drivers/gpu/drm/radeon/'
# good: [b2776bf7149bddd1f4161f14f79520f17fc1d71d] Linux 3.18
git bisect good b2776bf7149bddd1f4161f14f79520f17fc1d71d
# bad: [206c5f60a3d902bc4b56dab2de3e88de5eb06108] Linux 3.18-rc4
git bisect bad 206c5f60a3d902bc4b56dab2de3e88de5eb06108
# bad: [bfa76d49576599a4b9f9b7a71f23d73d6dcff735] Linux 3.19
git bisect bad bfa76d49576599a4b9f9b7a71f23d73d6dcff735
# bad: [d1968e1db892e53b5783570a5738477b2a51080b] drm/radeon: sync PT updates as shared v2
git bisect bad d1968e1db892e53b5783570a5738477b2a51080b
# good: [b94b95e7e3710a6137f8bc1311938cab3b067a0e] drm/radeon: set power control in ci dpm enable
git bisect good b94b95e7e3710a6137f8bc1311938cab3b067a0e
# good: [66648b81ce6a1ea713e299d2074d81d36cff4c94] drm/radeon: fix PCC debugging message for CI DPM
git bisect good 66648b81ce6a1ea713e299d2074d81d36cff4c94
# bad: [e0602c35fe3bcbe5fe9179be78882b3101780781] drm/radeon: remove unnecessary VM syncs
git bisect bad e0602c35fe3bcbe5fe9179be78882b3101780781
# good: [7f6233ca8769a92cf4f23a0bc18bf241e9c50606] drm/radeon/ci: force pcie level before sclk and mclk
git bisect good 7f6233ca8769a92cf4f23a0bc18bf241e9c50606
# good: [faffaf620f32c6e907d06570f8f75845ecb1349f] drm/radeon: rework vm_flush parameters
git bisect good faffaf620f32c6e907d06570f8f75845ecb1349f
# good: [85761f605a21ef7f3feda9d272565f97ecf1aa56] drm/radeon: stop re-reserving the BO in radeon_vm_bo_set_addr
git bisect good 85761f605a21ef7f3feda9d272565f97ecf1aa56
# first bad commit: [e0602c35fe3bcbe5fe9179be78882b3101780781] drm/radeon: remove unnecessary VM syncs
# good: [85761f605a21ef7f3feda9d272565f97ecf1aa56] drm/radeon: stop re-reserving the BO in radeon_vm_bo_set_addr
git bisect good 85761f605a21ef7f3feda9d272565f97ecf1aa56
# first bad commit: [e0602c35fe3bcbe5fe9179be78882b3101780781] drm/radeon: remove unnecessary VM syncs