Now start using parameterized DBUF_CTL instead
of hardcoded, this would allow shorter access
functions when reading or storing entire state.
Tried to implement it in a MMIO_PIPE manner, however
DBUF_CTL1 address is higher than DBUF_CTL2, which
implies that we have to now subtract from base
rather than add.
v2: - Removed unneeded DBUF_CTL_DIST and DBUF_CTL_ADDR
macros. Started to use _PICK construct as suggested
by Matt Roper.
v3: - DBUF_CTL_S* to _DBUF_CTL_S*, changed X to "slice"
in macro(Ville Syrjälä)
- _PICK to _PICK_EVEN(Ville Syrjälä)
- Introduced enum for enumerating DBUF slices(Ville Syrjälä)
Reviewed-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.ro...@intel.com>
Signed-off-by: Stanislav Lisovskiy <stanislav.lisovs...@intel.com>
---
.../drm/i915/display/intel_display_power.c | 30 +++++++++++--------
.../drm/i915/display/intel_display_power.h | 5 ++++
drivers/gpu/drm/i915/i915_reg.h | 7 +++--
drivers/gpu/drm/i915/intel_pm.c | 2 +-
4 files changed, 28 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c
b/drivers/gpu/drm/i915/display/intel_display_power.c
index 5e1c601f0f99..08065720391f 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -4418,9 +4418,11 @@ void icl_dbuf_slices_update(struct drm_i915_private
*dev_priv,
return;
if (req_slices > hw_enabled_slices)
- ret = intel_dbuf_slice_set(dev_priv, DBUF_CTL_S2, true);
+ ret = intel_dbuf_slice_set(dev_priv,
+ DBUF_CTL_S(DBUF_S2), true);
else
- ret = intel_dbuf_slice_set(dev_priv, DBUF_CTL_S2, false);
+ ret = intel_dbuf_slice_set(dev_priv,
+ DBUF_CTL_S(DBUF_S2), false);
if (ret)
dev_priv->enabled_dbuf_slices_num = req_slices;
@@ -4428,14 +4430,16 @@ void icl_dbuf_slices_update(struct drm_i915_private
*dev_priv,
static void icl_dbuf_enable(struct drm_i915_private *dev_priv)
{
- I915_WRITE(DBUF_CTL_S1, I915_READ(DBUF_CTL_S1) | DBUF_POWER_REQUEST);
- I915_WRITE(DBUF_CTL_S2, I915_READ(DBUF_CTL_S2) | DBUF_POWER_REQUEST);
- POSTING_READ(DBUF_CTL_S2);
+ I915_WRITE(DBUF_CTL_S(DBUF_S1),
+ I915_READ(DBUF_CTL_S(DBUF_S1)) | DBUF_POWER_REQUEST);
+ I915_WRITE(DBUF_CTL_S(DBUF_S2),
+ I915_READ(DBUF_CTL_S(DBUF_S2)) | DBUF_POWER_REQUEST);
+ POSTING_READ(DBUF_CTL_S(DBUF_S2));
udelay(10);
- if (!(I915_READ(DBUF_CTL_S1) & DBUF_POWER_STATE) ||
- !(I915_READ(DBUF_CTL_S2) & DBUF_POWER_STATE))
+ if (!(I915_READ(DBUF_CTL_S(DBUF_S1)) & DBUF_POWER_STATE) ||
+ !(I915_READ(DBUF_CTL_S(DBUF_S2)) & DBUF_POWER_STATE))
DRM_ERROR("DBuf power enable timeout\n");
else
/*
@@ -4447,14 +4451,16 @@ static void icl_dbuf_enable(struct drm_i915_private
*dev_priv)
static void icl_dbuf_disable(struct drm_i915_private *dev_priv)
{
- I915_WRITE(DBUF_CTL_S1, I915_READ(DBUF_CTL_S1) & ~DBUF_POWER_REQUEST);
- I915_WRITE(DBUF_CTL_S2, I915_READ(DBUF_CTL_S2) & ~DBUF_POWER_REQUEST);
- POSTING_READ(DBUF_CTL_S2);
+ I915_WRITE(DBUF_CTL_S(DBUF_S1),
+ I915_READ(DBUF_CTL_S(DBUF_S1)) & ~DBUF_POWER_REQUEST);
+ I915_WRITE(DBUF_CTL_S(DBUF_S2),
+ I915_READ(DBUF_CTL_S(DBUF_S2)) & ~DBUF_POWER_REQUEST);
+ POSTING_READ(DBUF_CTL_S(DBUF_S2));
udelay(10);
- if ((I915_READ(DBUF_CTL_S1) & DBUF_POWER_STATE) ||
- (I915_READ(DBUF_CTL_S2) & DBUF_POWER_STATE))
+ if ((I915_READ(DBUF_CTL_S(DBUF_S1)) & DBUF_POWER_STATE) ||
+ (I915_READ(DBUF_CTL_S(DBUF_S2)) & DBUF_POWER_STATE))
DRM_ERROR("DBuf power disable timeout!\n");
else
/*
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.h
b/drivers/gpu/drm/i915/display/intel_display_power.h
index 2608a65af7fa..601e000ffd0d 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.h
+++ b/drivers/gpu/drm/i915/display/intel_display_power.h
@@ -307,6 +307,11 @@ intel_display_power_put_async(struct drm_i915_private
*i915,
}
#endif
+enum dbuf_slice {
+ DBUF_S1,
+ DBUF_S2,
+};
+
#define with_intel_display_power(i915, domain, wf) \
for ((wf) = intel_display_power_get((i915), (domain)); (wf); \
intel_display_power_put_async((i915), (domain), (wf)), (wf) = 0)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index e5071af4a3b3..b3de69a0ea50 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -7745,9 +7745,10 @@ enum {
#define DISP_ARB_CTL2 _MMIO(0x45004)
#define DISP_DATA_PARTITION_5_6 (1 << 6)
#define DISP_IPC_ENABLE (1 << 3)
-#define DBUF_CTL _MMIO(0x45008)
-#define DBUF_CTL_S1 _MMIO(0x45008)
-#define DBUF_CTL_S2 _MMIO(0x44FE8)
+#define DBUF_CTL_ADDR1 0x45008
+#define DBUF_CTL_ADDR2 0x44FE8
+#define DBUF_CTL_S(X) _MMIO(_PICK(X, DBUF_CTL_ADDR1,
DBUF_CTL_ADDR2))
+#define DBUF_CTL DBUF_CTL_S(0)
#define DBUF_POWER_REQUEST (1 << 31)
#define DBUF_POWER_STATE (1 << 30)
#define GEN7_MSG_CTL _MMIO(0x45010)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 8f6f6472626a..f22509f8ac28 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3660,7 +3660,7 @@ u8 intel_enabled_dbuf_slices_num(struct drm_i915_private
*dev_priv)
* only that 1 slice enabled until we have a proper way for on-demand
* toggling of the second slice.
*/
- if (0 && I915_READ(DBUF_CTL_S2) & DBUF_POWER_STATE)
+ if (0 && I915_READ(DBUF_CTL_S(DBUF_S2)) & DBUF_POWER_STATE)
enabled_dbuf_slices_num++;
return enabled_dbuf_slices_num;
--
2.24.1.485.gad05a3d8e5
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