When using fake lmem for tests, we are overriding the setting in
device info for dgfx devices. Current users of IS_DGFX() except one are
correct. However, as we add support for DG1, we are going to use it in
additional places to trigger dgfx-only code path.
In future if we need we can use HAS_LMEM() instead of IS_DGFX() in the
places that make sense to also contemplate fake lmem use.
v2: update gen8_gmch_probe() to use HAS_LMEM(): we need to steal the
mappable aperture later(which is fine since it doesn't exist on "DGFX"),
and use it as a substitute for LMEMBAR. The !mappable aperture property
is also useful since it exercises some other parts of the code too.
(Matthew Auld)
Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
Reviewed-by: Matthew Auld <matthew.auld@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/intel_ggtt.c | 2 +-
drivers/gpu/drm/i915/i915_drv.c | 2 --
2 files changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt.c b/drivers/gpu/drm/i915/gt/intel_ggtt.c
index 81c05f551b9c..188a5f70177d 100644
--- a/drivers/gpu/drm/i915/gt/intel_ggtt.c
+++ b/drivers/gpu/drm/i915/gt/intel_ggtt.c
@@ -835,7 +835,7 @@ static int gen8_gmch_probe(struct i915_ggtt *ggtt)
u16 snb_gmch_ctl;
/* TODO: We're not aware of mappable constraints on gen8 yet */
- if (!IS_DGFX(i915)) {
+ if (!HAS_LMEM(i915)) {
ggtt->gmadr = pci_resource(pdev, 2);
ggtt->mappable_end = resource_size(&ggtt->gmadr);
}
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 45e719c79183..3f6ed142198c 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -840,9 +840,7 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
i915->params.fake_lmem_start) {
mkwrite_device_info(i915)->memory_regions =
REGION_SMEM | REGION_LMEM | REGION_STOLEN;
- mkwrite_device_info(i915)->is_dgfx = true;
GEM_BUG_ON(!HAS_LMEM(i915));
- GEM_BUG_ON(!IS_DGFX(i915));
}
}
#endif
--
2.28.0
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