drm/i915/guc: More debug print updates - GuC selftests

Update a bunch more debug prints to use the new GT based scheme.

v2: Also change prints to use %pe for error values (MichalW).
Fix a context leak on error due to a -- being too early.
Use the correct header file for the debug macros.

Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230207050717.1833718-5-John.C.Harrison@Intel.com

drm/i915/guc: Don't use pr_err when not necessary

A bunch of code was copy/pasted using pr_err as the default way to
report errors. However, drm_err is significantly more useful in
identifying where the error came from. So update the code to use that
instead.

Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220715004028.2126239-1-John.C.Harrison@Intel.com

drm/i915/xehp: Don't support parallel submission on compute / render

A different emit breadcrumbs ring programming is required for compute /
render and we don't have UMD user so just reject parallel submission for
these engine classes.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220301231549.1817978-11-matthew.d.roper@intel.com

drm/i915/gt: Use to_gt() helper

Use to_gt() helper consistently throughout the codebase.
Pure mechanical s/i915->gt/to_gt(i915). No functional changes.

Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211214193346.21231-5-andi.shyti@linux.intel.com

drm/i915/guc: Add basic GuC multi-lrc selftest

Add very basic (single submission) multi-lrc selftest.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211014172005.27155-19-matthew.brost@intel.com