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/*
* SPDX-License-Identifier: MIT
*/
#include "gem/i915_gem_mman.h"
#include "gt/intel_engine_user.h"
#include "i915_drv.h"
#include "i915_perf.h"
int i915_getparam_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_i915_private *i915 = to_i915(dev);
struct pci_dev *pdev = to_pci_dev(dev->dev);
const struct sseu_dev_info *sseu = &i915->gt.info.sseu;
drm_i915_getparam_t *param = data;
int value = 0;
switch (param->param) {
case I915_PARAM_IRQ_ACTIVE:
case I915_PARAM_ALLOW_BATCHBUFFER:
case I915_PARAM_LAST_DISPATCH:
case I915_PARAM_HAS_EXEC_CONSTANTS:
/* Reject all old ums/dri params. */
return -ENODEV;
case I915_PARAM_CHIPSET_ID:
value = pdev->device;
break;
case I915_PARAM_REVISION:
value = pdev->revision;
break;
case I915_PARAM_NUM_FENCES_AVAIL:
value = i915->ggtt.num_fences;
break;
case I915_PARAM_HAS_OVERLAY:
value = !!i915->overlay;
break;
case I915_PARAM_HAS_BSD:
value = !!intel_engine_lookup_user(i915,
I915_ENGINE_CLASS_VIDEO, 0);
break;
case I915_PARAM_HAS_BLT:
value = !!intel_engine_lookup_user(i915,
I915_ENGINE_CLASS_COPY, 0);
break;
case I915_PARAM_HAS_VEBOX:
value = !!intel_engine_lookup_user(i915,
I915_ENGINE_CLASS_VIDEO_ENHANCE, 0);
break;
case I915_PARAM_HAS_BSD2:
value = !!intel_engine_lookup_user(i915,
I915_ENGINE_CLASS_VIDEO, 1);
break;
case I915_PARAM_HAS_LLC:
value = HAS_LLC(i915);
break;
case I915_PARAM_HAS_WT:
value = HAS_WT(i915);
break;
case I915_PARAM_HAS_ALIASING_PPGTT:
value = INTEL_PPGTT(i915);
break;
case I915_PARAM_HAS_SEMAPHORES:
value = !!(i915->caps.scheduler & I915_SCHEDULER_CAP_SEMAPHORES);
break;
case I915_PARAM_HAS_SECURE_BATCHES:
value = HAS_SECURE_BATCHES(i915) && capable(CAP_SYS_ADMIN);
break;
case I915_PARAM_CMD_PARSER_VERSION:
value = i915_cmd_parser_get_version(i915);
break;
case I915_PARAM_SUBSLICE_TOTAL:
value = intel_sseu_subslice_total(sseu);
if (!value)
return -ENODEV;
break;
case I915_PARAM_EU_TOTAL:
value = sseu->eu_total;
if (!value)
return -ENODEV;
break;
case I915_PARAM_HAS_GPU_RESET:
value = i915->params.enable_hangcheck &&
intel_has_gpu_reset(&i915->gt);
if (value && intel_has_reset_engine(&i915->gt))
value = 2;
break;
case I915_PARAM_HAS_RESOURCE_STREAMER:
value = 0;
break;
case I915_PARAM_HAS_POOLED_EU:
value = HAS_POOLED_EU(i915);
break;
case I915_PARAM_MIN_EU_IN_POOL:
value = sseu->min_eu_in_pool;
break;
case I915_PARAM_HUC_STATUS:
value = intel_huc_check_status(&i915->gt.uc.huc);
if (value < 0)
return value;
break;
case I915_PARAM_MMAP_GTT_VERSION:
/* Though we've started our numbering from 1, and so class all
* earlier versions as 0, in effect their value is undefined as
* the ioctl will report EINVAL for the unknown param!
*/
value = i915_gem_mmap_gtt_version();
break;
case I915_PARAM_HAS_SCHEDULER:
value = i915->caps.scheduler;
break;
case I915_PARAM_MMAP_VERSION:
/* Remember to bump this if the version changes! */
case I915_PARAM_HAS_GEM:
case I915_PARAM_HAS_PAGEFLIPPING:
case I915_PARAM_HAS_EXECBUF2: /* depends on GEM */
case I915_PARAM_HAS_RELAXED_FENCING:
case I915_PARAM_HAS_COHERENT_RINGS:
case I915_PARAM_HAS_RELAXED_DELTA:
case I915_PARAM_HAS_GEN7_SOL_RESET:
case I915_PARAM_HAS_WAIT_TIMEOUT:
case I915_PARAM_HAS_PRIME_VMAP_FLUSH:
case I915_PARAM_HAS_PINNED_BATCHES:
case I915_PARAM_HAS_EXEC_NO_RELOC:
case I915_PARAM_HAS_EXEC_HANDLE_LUT:
case I915_PARAM_HAS_COHERENT_PHYS_GTT:
case I915_PARAM_HAS_EXEC_SOFTPIN:
case I915_PARAM_HAS_EXEC_ASYNC:
case I915_PARAM_HAS_EXEC_FENCE:
case I915_PARAM_HAS_EXEC_CAPTURE:
case I915_PARAM_HAS_EXEC_BATCH_FIRST:
case I915_PARAM_HAS_EXEC_FENCE_ARRAY:
case I915_PARAM_HAS_EXEC_SUBMIT_FENCE:
case I915_PARAM_HAS_EXEC_TIMELINE_FENCES:
case I915_PARAM_HAS_USERPTR_PROBE:
/* For the time being all of these are always true;
* if some supported hardware does not have one of these
* features this value needs to be provided from
* INTEL_INFO(), a feature macro, or similar.
*/
value = 1;
break;
case I915_PARAM_HAS_CONTEXT_ISOLATION:
value = intel_engines_has_context_isolation(i915);
break;
case I915_PARAM_SLICE_MASK:
value = sseu->slice_mask;
if (!value)
return -ENODEV;
break;
case I915_PARAM_SUBSLICE_MASK:
/* Only copy bits from the first slice */
memcpy(&value, sseu->subslice_mask,
min(sseu->ss_stride, (u8)sizeof(value)));
if (!value)
return -ENODEV;
break;
case I915_PARAM_CS_TIMESTAMP_FREQUENCY:
value = i915->gt.clock_frequency;
break;
case I915_PARAM_MMAP_GTT_COHERENT:
value = INTEL_INFO(i915)->has_coherent_ggtt;
break;
case I915_PARAM_PERF_REVISION:
value = i915_perf_ioctl_version();
break;
default:
DRM_DEBUG("Unknown parameter %d\n", param->param);
return -EINVAL;
}
if (put_user(value, param->value))
return -EFAULT;
return 0;
}
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