In commit 3f353342a6b6744773c26ed66b12afed42bd57af (present in 17.3.0) we started unconditionally using I915_EXEC_NO_RELOC, which was introduced in Linux v3.9. ChromeOS kernel 3.8 has backported this, so it should work too.
Running on older kernels would likely result in every single batch being rejected by the kernel, which is pretty catastrophic. Yet, it appears that nobody noticed. So, let's just bump the official requirement and move forward ever so slowly. Fixes: 3f353342a6b ("i965: Use I915_EXEC_NO_RELOC") --- src/mesa/drivers/dri/i965/intel_screen.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c index e1e520bc899..8c78b73b640 100644 --- a/src/mesa/drivers/dri/i965/intel_screen.c +++ b/src/mesa/drivers/dri/i965/intel_screen.c @@ -1779,8 +1779,8 @@ intel_init_bufmgr(struct intel_screen *screen) return false; } - if (!intel_get_boolean(screen, I915_PARAM_HAS_WAIT_TIMEOUT)) { - fprintf(stderr, "[%s: %u] Kernel 3.6 required.\n", __func__, __LINE__); + if (!intel_get_boolean(screen, I915_PARAM_HAS_EXEC_NO_RELOC)) { + fprintf(stderr, "[%s: %u] Kernel 3.9 required.\n", __func__, __LINE__); return false; } -- 2.15.1 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev