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/intel_device_info.h | |
| 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/intel_device_info.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_device_info.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h index 3699b1c539ea..4c92e0ec2c29 100644 --- a/drivers/gpu/drm/i915/intel_device_info.h +++ b/drivers/gpu/drm/i915/intel_device_info.h @@ -143,6 +143,7 @@ enum intel_ppgtt_type { func(has_pxp); \ func(has_rc6); \ func(has_rc6p); \ + func(has_remote_tiles); \ func(has_rps); \ func(has_runtime_pm); \ func(has_snoop); \ @@ -172,6 +173,18 @@ enum intel_ppgtt_type { func(overlay_needs_physical); \ func(supports_tv); +enum intel_gt_type { + GT_PRIMARY, + GT_TILE, +}; + +struct intel_gt_definition { + enum intel_gt_type type; + char *name; + u32 mapping_base; + intel_engine_mask_t engine_mask; +}; + struct ip_version { u8 ver; u8 rel; @@ -194,6 +207,8 @@ struct intel_device_info { u32 memory_regions; /* regions supported by the HW */ + const struct intel_gt_definition *extra_gt; + u32 display_mmio_offset; u8 gt; /* GT number, 0 if undefined */ |