On 6/14/2023 7:17 AM, Jouni Högander wrote:
As a preparation for Xe move HW fence details away from intel_fbc code.
Add new functions to check support for legacy fencing and fence id and use
these in fbc code. Xe doesn't support legacy fencing.
v2: Fix intel_gt_support_legacy_fencing macro
Signed-off-by: Jouni Högander <jouni.hogander@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_fbc.c | 12 ++++++------
drivers/gpu/drm/i915/gt/intel_gt_types.h | 2 ++
drivers/gpu/drm/i915/i915_vma.h | 5 +++++
3 files changed, 13 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c
index da8166eedf93..25382022cd27 100644
--- a/drivers/gpu/drm/i915/display/intel_fbc.c
+++ b/drivers/gpu/drm/i915/display/intel_fbc.c
@@ -47,6 +47,7 @@
#include "i915_reg.h"
#include "i915_utils.h"
#include "i915_vgpu.h"
+#include "i915_vma.h"
#include "intel_cdclk.h"
#include "intel_de.h"
#include "intel_display_trace.h"
@@ -607,7 +608,7 @@ static void ivb_fbc_activate(struct intel_fbc *fbc)
else if (DISPLAY_VER(i915) == 9)
skl_fbc_program_cfb_stride(fbc);
- if (to_gt(i915)->ggtt->num_fences)
+ if (intel_gt_support_legacy_fencing(to_gt(i915)))
snb_fbc_program_fence(fbc);
intel_de_write(i915, ILK_DPFC_CONTROL(fbc->id),
@@ -991,11 +992,10 @@ static void intel_fbc_update_state(struct intel_atomic_state *state,
fbc_state->fence_y_offset = intel_plane_fence_y_offset(plane_state);
drm_WARN_ON(&i915->drm, plane_state->flags & PLANE_HAS_FENCE &&
- !plane_state->ggtt_vma->fence);
+ !intel_gt_support_legacy_fencing(to_gt(i915)));
- if (plane_state->flags & PLANE_HAS_FENCE &&
- plane_state->ggtt_vma->fence)
- fbc_state->fence_id = plane_state->ggtt_vma->fence->id;
+ if (plane_state->flags & PLANE_HAS_FENCE)
+ fbc_state->fence_id = i915_vma_fence_id(plane_state->ggtt_vma);
else
fbc_state->fence_id = -1;
@@ -1022,7 +1022,7 @@ static bool intel_fbc_is_fence_ok(const struct intel_plane_state *plane_state)
*/
return DISPLAY_VER(i915) >= 9 ||
(plane_state->flags & PLANE_HAS_FENCE &&
- plane_state->ggtt_vma->fence);
+ i915_vma_fence_id(plane_state->ggtt_vma) != -1);
}
static bool intel_fbc_is_cfb_ok(const struct intel_plane_state *plane_state)
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h
index f08c2556aa25..121a53f908d1 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h
@@ -306,4 +306,6 @@ enum intel_gt_scratch_field {
INTEL_GT_SCRATCH_FIELD_COHERENTL3_WA = 256,
};
+#define intel_gt_support_legacy_fencing(gt) (gt->ggtt->num_fences > 0)
With the checkpath warning fixed here, this is
Reviewed-by: Nirmoy Das <nirmoy.das@xxxxxxxxx>
+
#endif /* __INTEL_GT_TYPES_H__ */
diff --git a/drivers/gpu/drm/i915/i915_vma.h b/drivers/gpu/drm/i915/i915_vma.h
index 9a9729205d5b..6fdf6205c290 100644
--- a/drivers/gpu/drm/i915/i915_vma.h
+++ b/drivers/gpu/drm/i915/i915_vma.h
@@ -418,6 +418,11 @@ i915_vma_unpin_fence(struct i915_vma *vma)
__i915_vma_unpin_fence(vma);
}
+static inline int i915_vma_fence_id(const struct i915_vma *vma)
+{
+ return vma->fence ? vma->fence->id : -1;
+}
+
void i915_vma_parked(struct intel_gt *gt);
static inline bool i915_vma_is_scanout(const struct i915_vma *vma)
