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anv: Add support for low latency hint on Xe KMD

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This hint tells KMD and firmware to turn into low latency but high
power usage mode.
i915 already had it now it was implemented in Xe KMD.

Reviewed-by: Sushma Venkatesh Reddy <sushma.venkatesh.reddy@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33214>
This commit is contained in:
José Roberto de Souza 2025-01-09 06:46:07 -08:00 • committed by Marge Bot
parent 0ba6a0a23b
commit ad86a666ae
3 changed files with 11 additions and 4 deletions
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2
src/intel/dev/xe/intel_device_info.c
View file

@ -73,6 +73,8 @@ xe_query_config(int fd, struct intel_device_info *devinfo)
if (config->info[DRM_XE_QUERY_CONFIG_FLAGS] & DRM_XE_QUERY_CONFIG_FLAG_HAS_VRAM)
devinfo->has_local_mem = true;
if (config->info[DRM_XE_QUERY_CONFIG_FLAGS] & DRM_XE_QUERY_CONFIG_FLAG_HAS_LOW_LATENCY)
devinfo->supports_low_latency_hint = true;
if (!has_gmd_ip_version(devinfo))
devinfo->revision = (config->info[DRM_XE_QUERY_CONFIG_REV_AND_DEVICE_ID] >> 16) & 0xFFFF;

5
src/intel/vulkan/xe/anv_queue.c
View file

@ -126,6 +126,7 @@ create_engine(struct anv_device *device,
.vm_id = device->vm_id,
.width = 1,
.num_placements = count,
.flags = 0,
};
intel_xe_gem_add_ext((uint64_t *)&create.extensions,
DRM_XE_EXEC_QUEUE_EXTENSION_SET_PROPERTY,
@ -134,6 +135,10 @@ create_engine(struct anv_device *device,
intel_xe_gem_add_ext((uint64_t *)&create.extensions,
DRM_XE_EXEC_QUEUE_EXTENSION_SET_PROPERTY,
&pxp_ext.base);
if (device->physical->instance->force_guc_low_latency &&
physical->info.supports_low_latency_hint)
create.flags |= DRM_XE_EXEC_QUEUE_LOW_LATENCY_HINT;
int ret;
bool retry;
do {

8
src/util/driconf.h
View file

@ -883,6 +883,10 @@
DRI_CONF_OPT_B(anv_large_workgroup_non_coherent_image_workaround, def, \
"Fixup image coherency qualifier for certain shaders.")
#define DRI_CONF_ANV_FORCE_GUC_LOW_LATENCY(def) \
DRI_CONF_OPT_B(force_guc_low_latency, def, \
"Enable low latency GuC strategy.")
/**
* \brief HASVK specific configuration options
*/
@ -891,10 +895,6 @@
DRI_CONF_OPT_B(hasvk_report_vk_1_3_version, def, \
"Override intel_hasvk API version")
#define DRI_CONF_ANV_FORCE_GUC_LOW_LATENCY(def) \
DRI_CONF_OPT_B(force_guc_low_latency, def, \
"Enable low latency GuC strategy. Only supported on i915.")
/**
* \brief DZN specific configuration options
*/