Its size is 11:0 instead of 10:0. Found by inspecting the spec. I'm
not aware of any real-world IGT failures caused by this.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_debugfs.c | 10 ++++++----
drivers/gpu/drm/i915/i915_reg.h | 5 +++--
2 files changed, 9 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index dc057c7..b54ff40 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1674,11 +1674,13 @@ static int i915_fbc_status(struct seq_file *m, void *unused)
seq_printf(m, "FBC disabled: %s\n",
dev_priv->fbc.no_fbc_reason);
- if (intel_fbc_is_active(dev_priv) &&
- INTEL_GEN(dev_priv) >= 7)
+ if (intel_fbc_is_active(dev_priv) && INTEL_GEN(dev_priv) >= 7) {
+ uint32_t mask = INTEL_GEN(dev_priv) >= 8 ?
+ BDW_FBC_COMPRESSION_MASK :
+ IVB_FBC_COMPRESSION_MASK;
seq_printf(m, "Compressing: %s\n",
- yesno(I915_READ(FBC_STATUS2) &
- FBC_COMPRESSION_MASK));
+ yesno(I915_READ(FBC_STATUS2) & mask));
+ }
mutex_unlock(&dev_priv->fbc.lock);
intel_runtime_pm_put(dev_priv);
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 00efaa1..a9be3f0 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -2188,8 +2188,9 @@ enum skl_disp_power_wells {
#define FBC_FENCE_OFF _MMIO(0x3218) /* BSpec typo has 321Bh */
#define FBC_TAG(i) _MMIO(0x3300 + (i) * 4)
-#define FBC_STATUS2 _MMIO(0x43214)
-#define FBC_COMPRESSION_MASK 0x7ff
+#define FBC_STATUS2 _MMIO(0x43214)
+#define IVB_FBC_COMPRESSION_MASK 0x7ff
+#define BDW_FBC_COMPRESSION_MASK 0xfff
#define FBC_LL_SIZE (1536)
--
2.7.4
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