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feature: Add support for chunking in the UMD (1/N)

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Read if support for chunking is available in the KMD.
If available, KMD will create a BO with 1 or more chunks,
depending on the chunk size selected.

Related-To: NEO-7695

Sync to
https://github.com/intel-gpu/drm-uapi-helper/releases/tag/v2.0-rc18

Signed-off-by: Jaime Arteaga <jaime.a.arteaga.molina@intel.com>
Signed-off-by: John Falkowski <john.falkowski@intel.com>
This commit is contained in:
Jaime Arteaga
2023-03-08 04:06:00 +00:00
committed by Compute-Runtime-Automation
parent 16d6ee735a
commit 2efd6e547a
38 changed files with 961 additions and 36 deletions
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27
third_party/uapi/prelim/drm/i915_drm_prelim.h vendored
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@@ -265,6 +265,9 @@ struct prelim_i915_user_extension {
/* End getparam */
/* BO chunk granularity support */
#define PRELIM_I915_PARAM_HAS_CHUNK_SIZE (PRELIM_I915_PARAM | 10)
struct prelim_drm_i915_gem_create_ext {
/**
@@ -326,6 +329,18 @@ struct prelim_drm_i915_gem_object_param {
* use two buffer objects with a single exported dma-buf file descriptor
*/
#define PRELIM_I915_PARAM_SET_PAIR ((1 << 17) | 0x1)
/*
* PRELIM_I915_PARAM_SET_CHUNK_SIZE:
*
* Specifies that this buffer object should support 'chunking' and chunk
* granularity. Allows internal KMD paging/migration/eviction handling to
* operate on a single chunk instead of the whole buffer object.
* Size specified in bytes and must be non-zero and a power of 2.
* KMD will return error (-ENOSPC) if CHUNK_SIZE is deemed to be too small
* to be supported.
*/
#define PRELIM_I915_PARAM_SET_CHUNK_SIZE ((1 << 18) | 1)
__u64 param;
/* Data value or pointer */
@@ -1229,10 +1244,20 @@ struct prelim_drm_i915_gem_vm_bind {
/**
* struct prelim_drm_i915_gem_vm_advise
*
* Set attribute (hint) for an address range or whole buffer object.
* Set attribute (hint) for an address range, whole buffer object, or
* part of buffer object.
*
* To apply attribute to whole buffer object, specify: handle
*
* To apply attribute to part of buffer object (chunk granularity), specify:
* handle, start, and length.
* Start and length must be exactly aligned to chunk boundaries of object.
* Above requires object to have been created during GEM_CREATE with:
* PRELIM_I915_PARAM_SET_CHUNK_SIZE.
*
* To apply attribute to address range, specify: vm_id, start, and length.
*
* On error, any applied hints are reverted before returning.
*/
struct prelim_drm_i915_gem_vm_advise {
/** vm that contains address range (specified with start, length) */