gem_submission_method ()

unsigned
gem_submission_method (int fd);

gem_submission_print_method ()

void
gem_submission_print_method (int fd);

Helper for pretty-printing currently used submission method

gem_has_semaphores ()

bool
gem_has_semaphores (int fd);

Feature test macro to query whether the driver is using semaphores for synchronization between engines.

gem_has_execlists ()

bool
gem_has_execlists (int fd);

Feature test macro to query whether the driver is using execlists as a hardware submission method.

gem_has_guc_submission ()

bool
gem_has_guc_submission (int fd);

Feature test macro to query whether the driver is using the GuC as a hardware submission method.

gem_test_engine ()

void
gem_test_engine (int fd,
                 unsigned int engine);

Execute a nop batch on the engine specified, or ALL_ENGINES for all, and check it executes.

gem_reopen_driver ()

int
gem_reopen_driver (int fd);

Re-opens the drm fd which is useful in instances where a clean default context is needed.

GEM_SUBMISSION_SEMAPHORES

#define GEM_SUBMISSION_SEMAPHORES (1 << 0)

GEM_SUBMISSION_EXECLISTS

#define GEM_SUBMISSION_EXECLISTS (1 << 1)

GEM_SUBMISSION_GUC

#define GEM_SUBMISSION_GUC		(1 << 2)