DRI_CONF_SECTION_PERFORMANCE
DRI_CONF_VK_X11_OVERRIDE_MIN_IMAGE_COUNT(0)
DRI_CONF_VK_X11_STRICT_IMAGE_COUNT(false)
+ DRI_CONF_DISABLE_D16UNORM_COMPRESSION(false)
DRI_CONF_SECTION_END
DRI_CONF_SECTION_DEBUG
VG(VALGRIND_CREATE_MEMPOOL(instance, 0, false));
anv_init_dri_options(instance);
+ instance->disable_d16unorm_compression =
+ driQueryOptionb(&instance->dri_options, "disable_d16unorm_compression");
*pInstance = anv_instance_to_handle(instance);
* TODO: This is a heuristic trade-off; we haven't tuned it at all.
*/
assert(device->info.gen >= 12);
- image->planes[plane].aux_usage = ISL_AUX_USAGE_HIZ_CCS_WT;
+ /* The experiment showed that running the benchmark with HIZ performs
+ * better than HIZ_CCS and HIZ_CCS_WT. Because the benchmark uses the
+ * depth pass with D16_UNORM surfaces format which fills the L3 cache
+ * and next pass doesn't make use of it where we end up clearing cache
+ * which results in performance regression.
+ *
+ * In order to avoid perf regression, disable HIZ_CCS_WT compression
+ * for D16_UNORM surface format on Fallout4 via driconf option.
+ */
+ if (plane_format.isl_format == ISL_FORMAT_R16_UNORM &&
+ device->physical->instance->disable_d16unorm_compression)
+ image->planes[plane].aux_usage = ISL_AUX_USAGE_HIZ;
+ else
+ image->planes[plane].aux_usage = ISL_AUX_USAGE_HIZ_CCS_WT;
} else {
assert(device->info.gen >= 12);
image->planes[plane].aux_usage = ISL_AUX_USAGE_HIZ_CCS;
struct driOptionCache dri_options;
struct driOptionCache available_dri_options;
+ bool disable_d16unorm_compression;
};
VkResult anv_init_wsi(struct anv_physical_device *physical_device);
<option name="vs_position_always_invariant" value="true" />
</application>
</device>
+ <device driver="anv">
+ <application name="Fallout 4" executable="Fallout4.exe">
+ <option name="disable_d16unorm_compression" value="true" />
+ </application>
+ </device>
<device driver="radv">
<application name="Shadow Of The Tomb Raider" executable="ShadowOfTheTombRaider">
<option name="radv_report_llvm9_version_string" value="true" />
DRI_CONF_OPT_I(radv_override_uniform_offset_alignment, def, 0, 128, \
"Override the minUniformBufferOffsetAlignment exposed to the application. (0 = default)")
+/**
+ * \brief ANV specific configuration options
+ */
+
+#define DRI_CONF_DISABLE_D16UNORM_COMPRESSION(def) \
+ DRI_CONF_OPT_B(disable_d16unorm_compression, def, \
+ "Disable HIZ_CCS_WT compression for D16_UNORM surface format")
+
#endif