From: Mahesh Kumar <mahesh1.kumar@xxxxxxxxx>
NV12 formats have two registers for DDB. verify both the registers for
NV12 during verify_wm_state.
Signed-off-by: Mahesh Kumar <mahesh1.kumar@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_display.c | 2 +-
drivers/gpu/drm/i915/intel_drv.h | 1 +
drivers/gpu/drm/i915/intel_pm.c | 50 ++++++++++++++++++++++++++++--------
3 files changed, 42 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 81aa5f1..af3144d 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2607,7 +2607,7 @@ static int i9xx_format_to_fourcc(int format)
}
}
-static int skl_format_to_fourcc(int format, bool rgb_order, bool alpha)
+int skl_format_to_fourcc(int format, bool rgb_order, bool alpha)
{
switch (format) {
case PLANE_CTL_FORMAT_RGB_565:
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 5f5e070..d245481 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1510,6 +1510,7 @@ u32 skl_plane_stride(const struct drm_framebuffer *fb, int plane,
unsigned int rotation);
int skl_check_plane_surface(struct intel_plane_state *plane_state);
int i9xx_check_plane_surface(struct intel_plane_state *plane_state);
+int skl_format_to_fourcc(int format, bool rgb_order, bool alpha);
/* intel_csr.c */
void intel_csr_ucode_init(struct drm_i915_private *);
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 15edb9a..5c268b9 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3820,6 +3820,43 @@ static void skl_ddb_entry_init_from_hw(struct skl_ddb_entry *entry, u32 reg)
entry->end += 1;
}
+static void
+skl_ddb_get_hw_plane_state(struct drm_i915_private *dev_priv,
+ const enum pipe pipe,
+ const enum plane_id plane_id,
+ struct skl_ddb_allocation *ddb /* out */)
+{
+ u32 val, val2 = 0;
+ int fourcc, pixel_format;
+
+ /* Cursor doesn't support NV12, so no extra calculation needed */
+ if (plane_id == PLANE_CURSOR) {
+ val = I915_READ(CUR_BUF_CFG(pipe));
+ skl_ddb_entry_init_from_hw(&ddb->plane[pipe][plane_id], val);
+ return;
+ }
+
+ val = I915_READ(PLANE_CTL(pipe, plane_id));
+
+ /* No DDB allocated for disabled planes */
+ if (!(val & PLANE_CTL_ENABLE))
+ return;
+
+ pixel_format = val & PLANE_CTL_FORMAT_MASK;
+ fourcc = skl_format_to_fourcc(pixel_format,
+ val & PLANE_CTL_ORDER_RGBX,
+ val & PLANE_CTL_ALPHA_MASK);
+
+ val = I915_READ(PLANE_BUF_CFG(pipe, plane_id));
+ val2 = I915_READ(PLANE_NV12_BUF_CFG(pipe, plane_id));
+
+ if (fourcc == DRM_FORMAT_NV12) {
+ skl_ddb_entry_init_from_hw(&ddb->plane[pipe][plane_id], val2);
+ skl_ddb_entry_init_from_hw(&ddb->uv_plane[pipe][plane_id], val);
+ } else
+ skl_ddb_entry_init_from_hw(&ddb->plane[pipe][plane_id], val);
+}
+
void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,
struct skl_ddb_allocation *ddb /* out */)
{
@@ -3836,16 +3873,9 @@ void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,
if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
continue;
- for_each_plane_id_on_crtc(crtc, plane_id) {
- u32 val;
-
- if (plane_id != PLANE_CURSOR)
- val = I915_READ(PLANE_BUF_CFG(pipe, plane_id));
- else
- val = I915_READ(CUR_BUF_CFG(pipe));
-
- skl_ddb_entry_init_from_hw(&ddb->plane[pipe][plane_id], val);
- }
+ for_each_plane_id_on_crtc(crtc, plane_id)
+ skl_ddb_get_hw_plane_state(dev_priv, pipe,
+ plane_id, ddb);
intel_display_power_put(dev_priv, power_domain);
}
--
2.7.4
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