diff options
| author | Matthew Auld <matthew.auld@intel.com> | 2021-01-27 13:14:10 +0000 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-03-24 19:30:36 +0100 |
| commit | 2dfcc7f4e91ff853beab44ce62eeb1163a220e2f (patch) | |
| tree | 23bcb688bc88525adb4981a39dde6438bf12e421 /drivers/gpu/drm/i915/gt | |
| parent | 2913fa4d7d4236f92a0a90810e9f239fe2781131 (diff) | |
drm/i915: make local-memory probing a GT operation
Device local memory is very much a GT thing, therefore it should be the
responsibility of the GT to setup the device local memory region.
Suggested-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20210127131417.393872-1-matthew.auld@intel.com
[danvet: Rebase conflict.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/gt')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_gt.c | 32 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_gt.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_region_lmem.c | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_region_lmem.h | 4 |
4 files changed, 43 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c index d8e1ab412634..edbee9991248 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt.c +++ b/drivers/gpu/drm/i915/gt/intel_gt.c @@ -39,6 +39,38 @@ void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915) intel_uc_init_early(>->uc); } +int intel_gt_probe_lmem(struct intel_gt *gt) +{ + struct drm_i915_private *i915 = gt->i915; + struct intel_memory_region *mem; + int id; + int err; + + mem = intel_gt_setup_fake_lmem(gt); + if (IS_ERR(mem)) { + err = PTR_ERR(mem); + if (err == -ENODEV) + return 0; + + drm_err(&i915->drm, + "Failed to setup region(%d) type=%d\n", + err, INTEL_MEMORY_LOCAL); + return err; + } + + id = INTEL_REGION_LMEM; + + mem->id = id; + mem->type = INTEL_MEMORY_LOCAL; + mem->instance = 0; + + GEM_BUG_ON(!HAS_REGION(i915, id)); + GEM_BUG_ON(i915->mm.regions[id]); + i915->mm.regions[id] = mem; + + return 0; +} + void intel_gt_init_hw_early(struct intel_gt *gt, struct i915_ggtt *ggtt) { gt->ggtt = ggtt; diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h b/drivers/gpu/drm/i915/gt/intel_gt.h index 9157c7411f60..a17bd8b3195f 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt.h +++ b/drivers/gpu/drm/i915/gt/intel_gt.h @@ -36,6 +36,7 @@ static inline struct intel_gt *huc_to_gt(struct intel_huc *huc) void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915); void intel_gt_init_hw_early(struct intel_gt *gt, struct i915_ggtt *ggtt); +int intel_gt_probe_lmem(struct intel_gt *gt); int intel_gt_init_mmio(struct intel_gt *gt); int __must_check intel_gt_init_hw(struct intel_gt *gt); int intel_gt_init(struct intel_gt *gt); diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.c b/drivers/gpu/drm/i915/gt/intel_region_lmem.c index 08bcb15b47b0..86f5dca37ef3 100644 --- a/drivers/gpu/drm/i915/gt/intel_region_lmem.c +++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.c @@ -102,16 +102,22 @@ static const struct intel_memory_region_ops intel_region_lmem_ops = { }; struct intel_memory_region * -intel_setup_fake_lmem(struct drm_i915_private *i915) +intel_gt_setup_fake_lmem(struct intel_gt *gt) { + struct drm_i915_private *i915 = gt->i915; struct pci_dev *pdev = to_pci_dev(i915->drm.dev); struct intel_memory_region *mem; resource_size_t mappable_end; resource_size_t io_start; resource_size_t start; + if (!HAS_LMEM(i915)) + return ERR_PTR(-ENODEV); + + if (!i915->params.fake_lmem_start) + return ERR_PTR(-ENODEV); + GEM_BUG_ON(i915_ggtt_has_aperture(&i915->ggtt)); - GEM_BUG_ON(!i915->params.fake_lmem_start); /* Your mappable aperture belongs to me now! */ mappable_end = pci_resource_len(pdev, 2); diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.h b/drivers/gpu/drm/i915/gt/intel_region_lmem.h index 8ea43e538dab..a4baa0f077a1 100644 --- a/drivers/gpu/drm/i915/gt/intel_region_lmem.h +++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.h @@ -6,9 +6,9 @@ #ifndef __INTEL_REGION_LMEM_H #define __INTEL_REGION_LMEM_H -struct drm_i915_private; +struct intel_gt; struct intel_memory_region * -intel_setup_fake_lmem(struct drm_i915_private *i915); +intel_gt_setup_fake_lmem(struct intel_gt *gt); #endif /* !__INTEL_REGION_LMEM_H */ |