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drm/i915: Introduce intel_dbuf_slice_size()

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Put the code into a function with a descriptive name. Also relocate
the code a bit help future work.

Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210122205633.18492-4-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2021-01-22 22:56:28 +02:00
parent 2d42f32f09
commit 944a5e3feb
2 changed files with 21 additions and 16 deletions
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36
drivers/gpu/drm/i915/intel_pm.c
View File

@ -4017,6 +4017,24 @@ static int intel_compute_sagv_mask(struct intel_atomic_state *state)
return 0;
}
static int intel_dbuf_size(struct drm_i915_private *dev_priv)
{
int ddb_size = INTEL_INFO(dev_priv)->ddb_size;
drm_WARN_ON(&dev_priv->drm, ddb_size == 0);
if (INTEL_GEN(dev_priv) < 11)
return ddb_size - 4; /* 4 blocks for bypass path allocation */
return ddb_size;
}
static int intel_dbuf_slice_size(struct drm_i915_private *dev_priv)
{
return intel_dbuf_size(dev_priv) /
INTEL_INFO(dev_priv)->num_supported_dbuf_slices;
}
/*
* Calculate initial DBuf slice offset, based on slice size
* and mask(i.e if slice size is 1024 and second slice is enabled
@ -4038,22 +4056,11 @@ icl_get_first_dbuf_slice_offset(u32 dbuf_slice_mask,
return offset;
}
u16 intel_get_ddb_size(struct drm_i915_private *dev_priv)
{
u16 ddb_size = INTEL_INFO(dev_priv)->ddb_size;
drm_WARN_ON(&dev_priv->drm, ddb_size == 0);
if (INTEL_GEN(dev_priv) < 11)
return ddb_size - 4; /* 4 blocks for bypass path allocation */
return ddb_size;
}
u32 skl_ddb_dbuf_slice_mask(struct drm_i915_private *dev_priv,
const struct skl_ddb_entry *entry)
{
u32 slice_mask = 0;
u16 ddb_size = intel_get_ddb_size(dev_priv);
u16 ddb_size = intel_dbuf_size(dev_priv);
u16 num_supported_slices = INTEL_INFO(dev_priv)->num_supported_dbuf_slices;
u16 slice_size = ddb_size / num_supported_slices;
u16 start_slice;
@ -4134,9 +4141,8 @@ skl_ddb_get_pipe_allocation_limits(struct drm_i915_private *dev_priv,
return 0;
}
ddb_size = intel_get_ddb_size(dev_priv);
slice_size = ddb_size / INTEL_INFO(dev_priv)->num_supported_dbuf_slices;
ddb_size = intel_dbuf_size(dev_priv);
slice_size = intel_dbuf_slice_size(dev_priv);
/*
* If the state doesn't change the active CRTC's or there is no

1
drivers/gpu/drm/i915/intel_pm.h
View File

@ -40,7 +40,6 @@ void skl_pipe_ddb_get_hw_state(struct intel_crtc *crtc,
struct skl_ddb_entry *ddb_y,
struct skl_ddb_entry *ddb_uv);
void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv);
u16 intel_get_ddb_size(struct drm_i915_private *dev_priv);
u32 skl_ddb_dbuf_slice_mask(struct drm_i915_private *dev_priv,
const struct skl_ddb_entry *entry);
void skl_pipe_wm_get_hw_state(struct intel_crtc *crtc,