*/
ISL_AUX_USAGE_CCS_E,
+ /** The auxiliary surface provides full lossless color compression on
+ * Gen12.
+ *
+ * @invariant isl_surf::samples == 1
+ */
+ ISL_AUX_USAGE_GEN12_CCS_E,
+
/** The auxiliary surface provides full lossless media color compression
*
* @invariant isl_surf::samples == 1
*/
ISL_AUX_USAGE_MC,
- /** The auxiliary surface is a HiZ surface and CCS is also enabled */
+ /** The auxiliary surface is a HiZ surface operating in write-through mode
+ * and CCS is also enabled
+ *
+ * In this mode, the HiZ and CCS surfaces act as a single fused compression
+ * surface where resolves and ambiguates operate on both surfaces at the
+ * same time. In this mode, the HiZ surface operates in write-through
+ * mode where it is only used for accelerating depth testing and not for
+ * actual compression. The CCS-compressed surface contains valid data at
+ * all times.
+ *
+ * @invariant isl_surf::samples == 1
+ */
+ ISL_AUX_USAGE_HIZ_CCS_WT,
+
+ /** The auxiliary surface is a HiZ surface with and CCS is also enabled
+ *
+ * In this mode, the HiZ and CCS surfaces act as a single fused compression
+ * surface where resolves and ambiguates operate on both surfaces at the
+ * same time. In this mode, full HiZ compression is enabled and the
+ * CCS-compressed main surface may not contain valid data. The only way to
+ * read the surface outside of the depth hardware is to do a full resolve
+ * which resolves both HiZ and CCS so the surface is in the pass-through
+ * state.
+ */
ISL_AUX_USAGE_HIZ_CCS,
/** The auxiliary surface is an MCS and CCS is also enabled
+ *
+ * In this mode, we have fused MCS+CCS compression where the MCS is used
+ * for fast-clears and "identical samples" compression just like on Gen7-11
+ * but each plane is then CCS compressed.
*
* @invariant isl_surf::samples > 1
*/
ISL_AUX_USAGE_MCS_CCS,
+
+ /** CCS auxiliary data is used to compress a stencil buffer
+ *
+ * @invariant isl_surf::samples == 1
+ */
+ ISL_AUX_USAGE_STC_CCS,
};
/**
* the CCS and filling it with zeros.
*/
enum isl_aux_state {
- ISL_AUX_STATE_CLEAR = 0,
+#ifdef IN_UNIT_TEST
+ ISL_AUX_STATE_ASSERT,
+#endif
+ ISL_AUX_STATE_CLEAR,
ISL_AUX_STATE_PARTIAL_CLEAR,
ISL_AUX_STATE_COMPRESSED_CLEAR,
ISL_AUX_STATE_COMPRESSED_NO_CLEAR,
* Enum which describes explicit aux transition operations.
*/
enum isl_aux_op {
+#ifdef IN_UNIT_TEST
+ ISL_AUX_OP_ASSERT,
+#endif
+
ISL_AUX_OP_NONE,
/** Fast Clear
return false;
}
+static inline bool
+isl_format_is_planar(enum isl_format fmt)
+{
+ return fmt == ISL_FORMAT_PLANAR_420_8;
+}
+
static inline bool
isl_format_is_yuv(enum isl_format fmt)
{
enum isl_format isl_format_rgb_to_rgbx(enum isl_format rgb) ATTRIBUTE_CONST;
enum isl_format isl_format_rgbx_to_rgba(enum isl_format rgb) ATTRIBUTE_CONST;
+union isl_color_value
+isl_color_value_swizzle_inv(union isl_color_value src,
+ struct isl_swizzle swizzle);
+
void isl_color_value_pack(const union isl_color_value *value,
enum isl_format format,
uint32_t *data_out);
enum isl_tiling
isl_tiling_from_i915_tiling(uint32_t tiling);
+/**
+ * Return an isl_aux_op needed to enable an access to occur in an
+ * isl_aux_state suitable for the isl_aux_usage.
+ *
+ * NOTE: If the access will invalidate the main surface, this function should
+ * not be called and the isl_aux_op of NONE should be used instead.
+ * Otherwise, an extra (but still lossless) ambiguate may occur.
+ *
+ * @invariant initial_state is possible with an isl_aux_usage compatible with
+ * the given usage. Two usages are compatible if it's possible to
+ * switch between them (e.g. CCS_E <-> CCS_D).
+ * @invariant fast_clear is false if the aux doesn't support fast clears.
+ */
+enum isl_aux_op
+isl_aux_prepare_access(enum isl_aux_state initial_state,
+ enum isl_aux_usage usage,
+ bool fast_clear_supported);
+
+/**
+ * Return the isl_aux_state entered after performing an isl_aux_op.
+ *
+ * @invariant initial_state is possible with the given usage.
+ * @invariant op is possible with the given usage.
+ * @invariant op must not cause HW to read from an invalid aux.
+ */
+enum isl_aux_state
+isl_aux_state_transition_aux_op(enum isl_aux_state initial_state,
+ enum isl_aux_usage usage,
+ enum isl_aux_op op);
+
+/**
+ * Return the isl_aux_state entered after performing a write.
+ *
+ * NOTE: full_surface should be true if the write covers the entire
+ * slice. Setting it to false in this case will still result in a
+ * correct (but imprecise) aux state.
+ *
+ * @invariant if usage is not ISL_AUX_USAGE_NONE, then initial_state is
+ * possible with the given usage.
+ * @invariant usage can be ISL_AUX_USAGE_NONE iff:
+ * * the main surface is valid, or
+ * * the main surface is being invalidated/replaced.
+ */
+enum isl_aux_state
+isl_aux_state_transition_write(enum isl_aux_state initial_state,
+ enum isl_aux_usage usage,
+ bool full_surface);
+
+bool
+isl_aux_usage_has_fast_clears(enum isl_aux_usage usage);
+
static inline bool
isl_aux_usage_has_hiz(enum isl_aux_usage usage)
{
return usage == ISL_AUX_USAGE_HIZ ||
+ usage == ISL_AUX_USAGE_HIZ_CCS_WT ||
usage == ISL_AUX_USAGE_HIZ_CCS;
}
{
return usage == ISL_AUX_USAGE_CCS_D ||
usage == ISL_AUX_USAGE_CCS_E ||
+ usage == ISL_AUX_USAGE_GEN12_CCS_E ||
usage == ISL_AUX_USAGE_MC ||
+ usage == ISL_AUX_USAGE_HIZ_CCS_WT ||
usage == ISL_AUX_USAGE_HIZ_CCS ||
- usage == ISL_AUX_USAGE_MCS_CCS;
+ usage == ISL_AUX_USAGE_MCS_CCS ||
+ usage == ISL_AUX_USAGE_STC_CCS;
}
static inline bool
if (!mod_info || mod_info->aux_usage == ISL_AUX_USAGE_NONE)
return ISL_AUX_STATE_AUX_INVALID;
- assert(mod_info->aux_usage == ISL_AUX_USAGE_CCS_E);
+ assert(mod_info->aux_usage == ISL_AUX_USAGE_CCS_E ||
+ mod_info->aux_usage == ISL_AUX_USAGE_GEN12_CCS_E);
return mod_info->supports_clear_color ? ISL_AUX_STATE_COMPRESSED_CLEAR :
ISL_AUX_STATE_COMPRESSED_NO_CLEAR;
}
isl_surf_get_tile_info(const struct isl_surf *surf,
struct isl_tile_info *tile_info);
+bool
+isl_surf_supports_ccs(const struct isl_device *dev,
+ const struct isl_surf *surf);
+
bool
isl_surf_get_hiz_surf(const struct isl_device *dev,
const struct isl_surf *surf,
isl_surf_get_depth_format(const struct isl_device *dev,
const struct isl_surf *surf);
-/**
- * @brief determines if a surface supports writing through HIZ to the CCS.
- */
-bool
-isl_surf_supports_hiz_ccs_wt(const struct gen_device_info *dev,
- const struct isl_surf *surf,
- enum isl_aux_usage aux_usage);
-
/**
* @brief performs a copy from linear to tiled surface
*
projects / mesa.git / blobdiff