diff options
| author | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2021-10-28 20:28:10 -0700 |
|---|---|---|
| committer | Andi Shyti <andi.shyti@linux.intel.com> | 2022-01-06 13:50:07 +0200 |
| commit | a5b42292d07cc27b42cb7c31a155715465c18611 (patch) | |
| tree | 561cfabacf8ffeed58746080a6e5c464257a3fbb /drivers/gpu/drm/i915/gt/intel_engine_cs.c | |
| parent | 9b0d7ca3667904f5d5ba802c5d7c840db46de5f6 (diff) | |
drm/i915: Prepare for multiple gt platforms
On a multi-tile platform, each tile has its own registers + GGTT space,
and BAR 0 is extended to cover all of them. Probe the tiles
individually.
Add some basic plumbing to support more than one dynamically allocated
struct intel_gt. Up to four gts are supported in i915->gts[], with slot
zero shadowing the existing i915->gt to enable source compatibility with
legacy driver paths. A for_each_gt macro is added to iterate over the
GTs and will be used by upcoming patches that convert various parts of
the driver to be multi-gt aware.
Check how many extra GT tiles are available on the system and setup
register access for all of them. We can detect how may GT tiles are
available by reading a register on the root tile. The same register
returns the tile ID on all tiles.
Signed-off-by: Abdiel Janulgue <abdiel.janulgue@gmail.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_engine_cs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_engine_cs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c index 352254e001b4..7512ba9277e8 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c @@ -559,7 +559,7 @@ static intel_engine_mask_t init_engine_mask(struct intel_gt *gt) u16 vdbox_mask; u16 vebox_mask; - info->engine_mask = INTEL_INFO(i915)->platform_engine_mask; + GEM_BUG_ON(!info->engine_mask); if (GRAPHICS_VER(i915) < 11) return info->engine_mask; |