From: Juha-Pekka Heikkilä <juha-pekka.heikkila@xxxxxxxxx>
XE_LPD supports plane strides up to 128KB.
v2:
- Drop a duplicated comment
- Add missing horizontal pixels for cpp!=8 case (Lucas)
- Take into account larger possible offsets for warnings
Cc: Vandita Kulkarni <vandita.kulkarni@xxxxxxxxx>
Signed-off-by: Juha-Pekka Heikkilä <juha-pekka.heikkila@xxxxxxxxx>
Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
Reviewed-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
---
.../drm/i915/display/skl_universal_plane.c | 46 +++++++++++++++----
drivers/gpu/drm/i915/i915_reg.h | 2 +
2 files changed, 39 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
index 2280694f19c7..cc36917b459c 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
@@ -456,17 +456,35 @@ skl_plane_max_stride(struct intel_plane *plane,
u32 pixel_format, u64 modifier,
unsigned int rotation)
{
+ struct drm_i915_private *i915 = to_i915(plane->base.dev);
const struct drm_format_info *info = drm_format_info(pixel_format);
int cpp = info->cpp[0];
+ int max_horizontal_pixels = 8192;
+ int max_stride_bytes;
+
+ if (DISPLAY_VER(i915) >= 13) {
+ /*
+ * The stride in bytes must not exceed of the size
+ * of 128K bytes. For pixel formats of 64bpp will allow
+ * for a 16K pixel surface.
+ */
+ max_stride_bytes = 131072;
+ if (cpp == 8)
+ max_horizontal_pixels = 16384;
+ else
+ max_horizontal_pixels = 65536;
+ } else {
+ /*
+ * "The stride in bytes must not exceed the
+ * of the size of 8K pixels and 32K bytes."
+ */
+ max_stride_bytes = 32768;
+ }
- /*
- * "The stride in bytes must not exceed the
- * of the size of 8K pixels and 32K bytes."
- */
if (drm_rotation_90_or_270(rotation))
- return min(8192, 32768 / cpp);
+ return min(max_horizontal_pixels, max_stride_bytes / cpp);
else
- return min(8192 * cpp, 32768);
+ return min(max_horizontal_pixels * cpp, max_stride_bytes);
}
@@ -1450,7 +1468,10 @@ static int skl_check_main_surface(struct intel_plane_state *plane_state)
}
}
- drm_WARN_ON(&dev_priv->drm, x > 8191 || y > 8191);
+ if (DISPLAY_VER(dev_priv) >= 13)
+ drm_WARN_ON(&dev_priv->drm, x > 65535 || y > 65535);
+ else
+ drm_WARN_ON(&dev_priv->drm, x > 8191 || y > 8191);
plane_state->color_plane[0].offset = offset;
plane_state->color_plane[0].x = x;
@@ -1524,7 +1545,10 @@ static int skl_check_nv12_aux_surface(struct intel_plane_state *plane_state)
}
}
- drm_WARN_ON(&i915->drm, x > 8191 || y > 8191);
+ if (DISPLAY_VER(i915) >= 13)
+ drm_WARN_ON(&i915->drm, x > 65535 || y > 65535);
+ else
+ drm_WARN_ON(&i915->drm, x > 8191 || y > 8191);
plane_state->color_plane[uv_plane].offset = offset;
plane_state->color_plane[uv_plane].x = x;
@@ -2248,7 +2272,11 @@ skl_get_initial_plane_config(struct intel_crtc *crtc,
val = intel_de_read(dev_priv, PLANE_STRIDE(pipe, plane_id));
stride_mult = skl_plane_stride_mult(fb, 0, DRM_MODE_ROTATE_0);
- fb->pitches[0] = (val & 0x3ff) * stride_mult;
+
+ if (DISPLAY_VER(dev_priv) >= 13)
+ fb->pitches[0] = (val & PLANE_STRIDE_MASK_XELPD) * stride_mult;
+ else
+ fb->pitches[0] = (val & PLANE_STRIDE_MASK) * stride_mult;
aligned_height = intel_fb_align_height(fb, 0, fb->height);
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 9bbe94cddd93..59291d6a702e 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -7202,6 +7202,8 @@ enum {
_PIPE(pipe, _PLANE_STRIDE_3_A, _PLANE_STRIDE_3_B)
#define PLANE_STRIDE(pipe, plane) \
_MMIO_PLANE(plane, _PLANE_STRIDE_1(pipe), _PLANE_STRIDE_2(pipe))
+#define PLANE_STRIDE_MASK REG_GENMASK(10, 0)
+#define PLANE_STRIDE_MASK_XELPD REG_GENMASK(11, 0)
#define _PLANE_POS_1_B 0x7118c
#define _PLANE_POS_2_B 0x7128c
--
2.25.4
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