* [Intel-gfx] [PATCH v5 i-g-t 1/3] include/drm-uapi: Update to latest i915_drm.h
2022-06-03 16:25 [Intel-gfx] [PATCH v5 i-g-t 0/3] Update DRM UAPI and add test for new hw info query John.C.Harrison
@ 2022-06-03 16:25 ` John.C.Harrison
2022-06-03 16:25 ` [Intel-gfx] [PATCH v5 i-g-t 2/3] tests/i915/query: Add descriptions to existing tests John.C.Harrison
2022-06-03 16:25 ` [Intel-gfx] [PATCH v5 i-g-t 3/3] tests/i915/query: Query, parse and validate the hwconfig table John.C.Harrison
2 siblings, 0 replies; 6+ messages in thread
From: John.C.Harrison @ 2022-06-03 16:25 UTC (permalink / raw)
To: IGT-Dev; +Cc: Intel-GFX
From: John Harrison <John.C.Harrison@Intel.com>
Update to the latest master version of the DRM UAPI header file from
git://anongit.freedesktop.org/git/drm/drm:
c4955d9cd2fc Merge tag 'drm-intel-next-fixes-2022-05-24' of
git://anongit.freedesktop.org/drm/drm-intel into drm-next
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
---
include/drm-uapi/i915_drm.h | 398 ++++++++++++++++++++++++++++--------
1 file changed, 312 insertions(+), 86 deletions(-)
diff --git a/include/drm-uapi/i915_drm.h b/include/drm-uapi/i915_drm.h
index 9c9e1afa61ba..b4efc96c2edc 100644
--- a/include/drm-uapi/i915_drm.h
+++ b/include/drm-uapi/i915_drm.h
@@ -154,25 +154,77 @@ enum i915_mocs_table_index {
I915_MOCS_CACHED,
};
-/*
+/**
+ * enum drm_i915_gem_engine_class - uapi engine type enumeration
+ *
* Different engines serve different roles, and there may be more than one
- * engine serving each role. enum drm_i915_gem_engine_class provides a
- * classification of the role of the engine, which may be used when requesting
- * operations to be performed on a certain subset of engines, or for providing
- * information about that group.
+ * engine serving each role. This enum provides a classification of the role
+ * of the engine, which may be used when requesting operations to be performed
+ * on a certain subset of engines, or for providing information about that
+ * group.
*/
enum drm_i915_gem_engine_class {
+ /**
+ * @I915_ENGINE_CLASS_RENDER:
+ *
+ * Render engines support instructions used for 3D, Compute (GPGPU),
+ * and programmable media workloads. These instructions fetch data and
+ * dispatch individual work items to threads that operate in parallel.
+ * The threads run small programs (called "kernels" or "shaders") on
+ * the GPU's execution units (EUs).
+ */
I915_ENGINE_CLASS_RENDER = 0,
+
+ /**
+ * @I915_ENGINE_CLASS_COPY:
+ *
+ * Copy engines (also referred to as "blitters") support instructions
+ * that move blocks of data from one location in memory to another,
+ * or that fill a specified location of memory with fixed data.
+ * Copy engines can perform pre-defined logical or bitwise operations
+ * on the source, destination, or pattern data.
+ */
I915_ENGINE_CLASS_COPY = 1,
+
+ /**
+ * @I915_ENGINE_CLASS_VIDEO:
+ *
+ * Video engines (also referred to as "bit stream decode" (BSD) or
+ * "vdbox") support instructions that perform fixed-function media
+ * decode and encode.
+ */
I915_ENGINE_CLASS_VIDEO = 2,
+
+ /**
+ * @I915_ENGINE_CLASS_VIDEO_ENHANCE:
+ *
+ * Video enhancement engines (also referred to as "vebox") support
+ * instructions related to image enhancement.
+ */
I915_ENGINE_CLASS_VIDEO_ENHANCE = 3,
- /* should be kept compact */
+ /**
+ * @I915_ENGINE_CLASS_COMPUTE:
+ *
+ * Compute engines support a subset of the instructions available
+ * on render engines: compute engines support Compute (GPGPU) and
+ * programmable media workloads, but do not support the 3D pipeline.
+ */
+ I915_ENGINE_CLASS_COMPUTE = 4,
+
+ /* Values in this enum should be kept compact. */
+ /**
+ * @I915_ENGINE_CLASS_INVALID:
+ *
+ * Placeholder value to represent an invalid engine class assignment.
+ */
I915_ENGINE_CLASS_INVALID = -1
};
-/*
+/**
+ * struct i915_engine_class_instance - Engine class/instance identifier
+ *
* There may be more than one engine fulfilling any role within the system.
* Each engine of a class is given a unique instance number and therefore
* any engine can be specified by its class:instance tuplet. APIs that allow
@@ -180,10 +232,21 @@ enum drm_i915_gem_engine_class {
* for this identification.
*/
struct i915_engine_class_instance {
- __u16 engine_class; /* see enum drm_i915_gem_engine_class */
- __u16 engine_instance;
+ /**
+ * @engine_class:
+ *
+ * Engine class from enum drm_i915_gem_engine_class
+ */
+ __u16 engine_class;
#define I915_ENGINE_CLASS_INVALID_NONE -1
#define I915_ENGINE_CLASS_INVALID_VIRTUAL -2
+
+ /**
+ * @engine_instance:
+ *
+ * Engine instance.
+ */
+ __u16 engine_instance;
};
/**
@@ -1118,10 +1181,16 @@ struct drm_i915_gem_exec_object2 {
/**
* When the EXEC_OBJECT_PINNED flag is specified this is populated by
* the user with the GTT offset at which this object will be pinned.
+ *
* When the I915_EXEC_NO_RELOC flag is specified this must contain the
* presumed_offset of the object.
+ *
* During execbuffer2 the kernel populates it with the value of the
* current GTT offset of the object, for future presumed_offset writes.
+ *
+ * See struct drm_i915_gem_create_ext for the rules when dealing with
+ * alignment restrictions with I915_MEMORY_CLASS_DEVICE, on devices with
+ * minimum page sizes, like DG2.
*/
__u64 offset;
@@ -2651,24 +2720,65 @@ enum drm_i915_perf_record_type {
DRM_I915_PERF_RECORD_MAX /* non-ABI */
};
-/*
+/**
+ * struct drm_i915_perf_oa_config
+ *
* Structure to upload perf dynamic configuration into the kernel.
*/
struct drm_i915_perf_oa_config {
- /** String formatted like "%08x-%04x-%04x-%04x-%012x" */
+ /**
+ * @uuid:
+ *
+ * String formatted like "%\08x-%\04x-%\04x-%\04x-%\012x"
+ */
char uuid[36];
+ /**
+ * @n_mux_regs:
+ *
+ * Number of mux regs in &mux_regs_ptr.
+ */
__u32 n_mux_regs;
+
+ /**
+ * @n_boolean_regs:
+ *
+ * Number of boolean regs in &boolean_regs_ptr.
+ */
__u32 n_boolean_regs;
+
+ /**
+ * @n_flex_regs:
+ *
+ * Number of flex regs in &flex_regs_ptr.
+ */
__u32 n_flex_regs;
- /*
- * These fields are pointers to tuples of u32 values (register address,
- * value). For example the expected length of the buffer pointed by
- * mux_regs_ptr is (2 * sizeof(u32) * n_mux_regs).
+ /**
+ * @mux_regs_ptr:
+ *
+ * Pointer to tuples of u32 values (register address, value) for mux
+ * registers. Expected length of buffer is (2 * sizeof(u32) *
+ * &n_mux_regs).
*/
__u64 mux_regs_ptr;
+
+ /**
+ * @boolean_regs_ptr:
+ *
+ * Pointer to tuples of u32 values (register address, value) for mux
+ * registers. Expected length of buffer is (2 * sizeof(u32) *
+ * &n_boolean_regs).
+ */
__u64 boolean_regs_ptr;
+
+ /**
+ * @flex_regs_ptr:
+ *
+ * Pointer to tuples of u32 values (register address, value) for mux
+ * registers. Expected length of buffer is (2 * sizeof(u32) *
+ * &n_flex_regs).
+ */
__u64 flex_regs_ptr;
};
@@ -2679,12 +2789,24 @@ struct drm_i915_perf_oa_config {
* @data_ptr is also depends on the specific @query_id.
*/
struct drm_i915_query_item {
- /** @query_id: The id for this query */
+ /**
+ * @query_id:
+ *
+ * The id for this query. Currently accepted query IDs are:
+ * - %DRM_I915_QUERY_TOPOLOGY_INFO (see struct drm_i915_query_topology_info)
+ * - %DRM_I915_QUERY_ENGINE_INFO (see struct drm_i915_engine_info)
+ * - %DRM_I915_QUERY_PERF_CONFIG (see struct drm_i915_query_perf_config)
+ * - %DRM_I915_QUERY_MEMORY_REGIONS (see struct drm_i915_query_memory_regions)
+ * - %DRM_I915_QUERY_HWCONFIG_BLOB (see `GuC HWCONFIG blob uAPI`)
+ * - %DRM_I915_QUERY_GEOMETRY_SUBSLICES (see struct drm_i915_query_topology_info)
+ */
__u64 query_id;
-#define DRM_I915_QUERY_TOPOLOGY_INFO 1
-#define DRM_I915_QUERY_ENGINE_INFO 2
-#define DRM_I915_QUERY_PERF_CONFIG 3
-#define DRM_I915_QUERY_MEMORY_REGIONS 4
+#define DRM_I915_QUERY_TOPOLOGY_INFO 1
+#define DRM_I915_QUERY_ENGINE_INFO 2
+#define DRM_I915_QUERY_PERF_CONFIG 3
+#define DRM_I915_QUERY_MEMORY_REGIONS 4
+#define DRM_I915_QUERY_HWCONFIG_BLOB 5
+#define DRM_I915_QUERY_GEOMETRY_SUBSLICES 6
/* Must be kept compact -- no holes and well documented */
/**
@@ -2700,14 +2822,17 @@ struct drm_i915_query_item {
/**
* @flags:
*
- * When query_id == DRM_I915_QUERY_TOPOLOGY_INFO, must be 0.
+ * When &query_id == %DRM_I915_QUERY_TOPOLOGY_INFO, must be 0.
*
- * When query_id == DRM_I915_QUERY_PERF_CONFIG, must be one of the
+ * When &query_id == %DRM_I915_QUERY_PERF_CONFIG, must be one of the
* following:
*
- * - DRM_I915_QUERY_PERF_CONFIG_LIST
- * - DRM_I915_QUERY_PERF_CONFIG_DATA_FOR_UUID
- * - DRM_I915_QUERY_PERF_CONFIG_FOR_UUID
+ * - %DRM_I915_QUERY_PERF_CONFIG_LIST
+ * - %DRM_I915_QUERY_PERF_CONFIG_DATA_FOR_UUID
+ * - %DRM_I915_QUERY_PERF_CONFIG_FOR_UUID
+ *
+ * When &query_id == %DRM_I915_QUERY_GEOMETRY_SUBSLICES must contain
+ * a struct i915_engine_class_instance that references a render engine.
*/
__u32 flags;
#define DRM_I915_QUERY_PERF_CONFIG_LIST 1
@@ -2765,66 +2890,112 @@ struct drm_i915_query {
__u64 items_ptr;
};
-/*
- * Data written by the kernel with query DRM_I915_QUERY_TOPOLOGY_INFO :
- *
- * data: contains the 3 pieces of information :
- *
- * - the slice mask with one bit per slice telling whether a slice is
- * available. The availability of slice X can be queried with the following
- * formula :
- *
- * (data[X / 8] >> (X % 8)) & 1
- *
- * - the subslice mask for each slice with one bit per subslice telling
- * whether a subslice is available. Gen12 has dual-subslices, which are
- * similar to two gen11 subslices. For gen12, this array represents dual-
- * subslices. The availability of subslice Y in slice X can be queried
- * with the following formula :
- *
- * (data[subslice_offset +
- * X * subslice_stride +
- * Y / 8] >> (Y % 8)) & 1
- *
- * - the EU mask for each subslice in each slice with one bit per EU telling
- * whether an EU is available. The availability of EU Z in subslice Y in
- * slice X can be queried with the following formula :
+/**
+ * struct drm_i915_query_topology_info
*
- * (data[eu_offset +
- * (X * max_subslices + Y) * eu_stride +
- * Z / 8] >> (Z % 8)) & 1
+ * Describes slice/subslice/EU information queried by
+ * %DRM_I915_QUERY_TOPOLOGY_INFO
*/
struct drm_i915_query_topology_info {
- /*
+ /**
+ * @flags:
+ *
* Unused for now. Must be cleared to zero.
*/
__u16 flags;
+ /**
+ * @max_slices:
+ *
+ * The number of bits used to express the slice mask.
+ */
__u16 max_slices;
+
+ /**
+ * @max_subslices:
+ *
+ * The number of bits used to express the subslice mask.
+ */
__u16 max_subslices;
+
+ /**
+ * @max_eus_per_subslice:
+ *
+ * The number of bits in the EU mask that correspond to a single
+ * subslice's EUs.
+ */
__u16 max_eus_per_subslice;
- /*
+ /**
+ * @subslice_offset:
+ *
* Offset in data[] at which the subslice masks are stored.
*/
__u16 subslice_offset;
- /*
+ /**
+ * @subslice_stride:
+ *
* Stride at which each of the subslice masks for each slice are
* stored.
*/
__u16 subslice_stride;
- /*
+ /**
+ * @eu_offset:
+ *
* Offset in data[] at which the EU masks are stored.
*/
__u16 eu_offset;
- /*
+ /**
+ * @eu_stride:
+ *
* Stride at which each of the EU masks for each subslice are stored.
*/
__u16 eu_stride;
+ /**
+ * @data:
+ *
+ * Contains 3 pieces of information :
+ *
+ * - The slice mask with one bit per slice telling whether a slice is
+ * available. The availability of slice X can be queried with the
+ * following formula :
+ *
+ * .. code:: c
+ *
+ * (data[X / 8] >> (X % 8)) & 1
+ *
+ * Starting with Xe_HP platforms, Intel hardware no longer has
+ * traditional slices so i915 will always report a single slice
+ * (hardcoded slicemask = 0x1) which contains all of the platform's
+ * subslices. I.e., the mask here does not reflect any of the newer
+ * hardware concepts such as "gslices" or "cslices" since userspace
+ * is capable of inferring those from the subslice mask.
+ *
+ * - The subslice mask for each slice with one bit per subslice telling
+ * whether a subslice is available. Starting with Gen12 we use the
+ * term "subslice" to refer to what the hardware documentation
+ * describes as a "dual-subslices." The availability of subslice Y
+ * in slice X can be queried with the following formula :
+ *
+ * .. code:: c
+ *
+ * (data[subslice_offset + X * subslice_stride + Y / 8] >> (Y % 8)) & 1
+ *
+ * - The EU mask for each subslice in each slice, with one bit per EU
+ * telling whether an EU is available. The availability of EU Z in
+ * subslice Y in slice X can be queried with the following formula :
+ *
+ * .. code:: c
+ *
+ * (data[eu_offset +
+ * (X * max_subslices + Y) * eu_stride +
+ * Z / 8
+ * ] >> (Z % 8)) & 1
+ */
__u8 data[];
};
@@ -2945,52 +3116,68 @@ struct drm_i915_query_engine_info {
struct drm_i915_engine_info engines[];
};
-/*
- * Data written by the kernel with query DRM_I915_QUERY_PERF_CONFIG.
+/**
+ * struct drm_i915_query_perf_config
+ *
+ * Data written by the kernel with query %DRM_I915_QUERY_PERF_CONFIG and
+ * %DRM_I915_QUERY_GEOMETRY_SUBSLICES.
*/
struct drm_i915_query_perf_config {
union {
- /*
- * When query_item.flags == DRM_I915_QUERY_PERF_CONFIG_LIST, i915 sets
- * this fields to the number of configurations available.
+ /**
+ * @n_configs:
+ *
+ * When &drm_i915_query_item.flags ==
+ * %DRM_I915_QUERY_PERF_CONFIG_LIST, i915 sets this fields to
+ * the number of configurations available.
*/
__u64 n_configs;
- /*
- * When query_id == DRM_I915_QUERY_PERF_CONFIG_DATA_FOR_ID,
- * i915 will use the value in this field as configuration
- * identifier to decide what data to write into config_ptr.
+ /**
+ * @config:
+ *
+ * When &drm_i915_query_item.flags ==
+ * %DRM_I915_QUERY_PERF_CONFIG_DATA_FOR_ID, i915 will use the
+ * value in this field as configuration identifier to decide
+ * what data to write into config_ptr.
*/
__u64 config;
- /*
- * When query_id == DRM_I915_QUERY_PERF_CONFIG_DATA_FOR_UUID,
- * i915 will use the value in this field as configuration
- * identifier to decide what data to write into config_ptr.
+ /**
+ * @uuid:
+ *
+ * When &drm_i915_query_item.flags ==
+ * %DRM_I915_QUERY_PERF_CONFIG_DATA_FOR_UUID, i915 will use the
+ * value in this field as configuration identifier to decide
+ * what data to write into config_ptr.
*
* String formatted like "%08x-%04x-%04x-%04x-%012x"
*/
char uuid[36];
};
- /*
+ /**
+ * @flags:
+ *
* Unused for now. Must be cleared to zero.
*/
__u32 flags;
- /*
- * When query_item.flags == DRM_I915_QUERY_PERF_CONFIG_LIST, i915 will
- * write an array of __u64 of configuration identifiers.
+ /**
+ * @data:
*
- * When query_item.flags == DRM_I915_QUERY_PERF_CONFIG_DATA, i915 will
- * write a struct drm_i915_perf_oa_config. If the following fields of
- * drm_i915_perf_oa_config are set not set to 0, i915 will write into
- * the associated pointers the values of submitted when the
+ * When &drm_i915_query_item.flags == %DRM_I915_QUERY_PERF_CONFIG_LIST,
+ * i915 will write an array of __u64 of configuration identifiers.
+ *
+ * When &drm_i915_query_item.flags == %DRM_I915_QUERY_PERF_CONFIG_DATA,
+ * i915 will write a struct drm_i915_perf_oa_config. If the following
+ * fields of struct drm_i915_perf_oa_config are not set to 0, i915 will
+ * write into the associated pointers the values of submitted when the
* configuration was created :
*
- * - n_mux_regs
- * - n_boolean_regs
- * - n_flex_regs
+ * - &drm_i915_perf_oa_config.n_mux_regs
+ * - &drm_i915_perf_oa_config.n_boolean_regs
+ * - &drm_i915_perf_oa_config.n_flex_regs
*/
__u8 data[];
};
@@ -3128,6 +3315,16 @@ struct drm_i915_query_memory_regions {
struct drm_i915_memory_region_info regions[];
};
+/**
+ * DOC: GuC HWCONFIG blob uAPI
+ *
+ * The GuC produces a blob with information about the current device.
+ * i915 reads this blob from GuC and makes it available via this uAPI.
+ *
+ * The format and meaning of the blob content are documented in the
+ * Programmer's Reference Manual.
+ */
+
/**
* struct drm_i915_gem_create_ext - Existing gem_create behaviour, with added
* extension support using struct i915_user_extension.
@@ -3144,11 +3341,40 @@ struct drm_i915_gem_create_ext {
*
* The (page-aligned) allocated size for the object will be returned.
*
- * Note that for some devices we have might have further minimum
- * page-size restrictions(larger than 4K), like for device local-memory.
- * However in general the final size here should always reflect any
- * rounding up, if for example using the I915_GEM_CREATE_EXT_MEMORY_REGIONS
- * extension to place the object in device local-memory.
+ *
+ * DG2 64K min page size implications:
+ *
+ * On discrete platforms, starting from DG2, we have to contend with GTT
+ * page size restrictions when dealing with I915_MEMORY_CLASS_DEVICE
+ * objects. Specifically the hardware only supports 64K or larger GTT
+ * page sizes for such memory. The kernel will already ensure that all
+ * I915_MEMORY_CLASS_DEVICE memory is allocated using 64K or larger page
+ * sizes underneath.
+ *
+ * Note that the returned size here will always reflect any required
+ * rounding up done by the kernel, i.e 4K will now become 64K on devices
+ * such as DG2.
+ *
+ * Special DG2 GTT address alignment requirement:
+ *
+ * The GTT alignment will also need to be at least 2M for such objects.
+ *
+ * Note that due to how the hardware implements 64K GTT page support, we
+ * have some further complications:
+ *
+ * 1) The entire PDE (which covers a 2MB virtual address range), must
+ * contain only 64K PTEs, i.e mixing 4K and 64K PTEs in the same
+ * PDE is forbidden by the hardware.
+ *
+ * 2) We still need to support 4K PTEs for I915_MEMORY_CLASS_SYSTEM
+ * objects.
+ *
+ * To keep things simple for userland, we mandate that any GTT mappings
+ * must be aligned to and rounded up to 2MB. The kernel will internally
+ * pad them out to the next 2MB boundary. As this only wastes virtual
+ * address space and avoids userland having to copy any needlessly
+ * complicated PDE sharing scheme (coloring) and only affects DG2, this
+ * is deemed to be a good compromise.
*/
__u64 size;
/**
--
2.36.0
^ permalink raw reply related [flat|nested] 6+ messages in thread* [Intel-gfx] [PATCH v5 i-g-t 3/3] tests/i915/query: Query, parse and validate the hwconfig table
2022-06-03 16:25 [Intel-gfx] [PATCH v5 i-g-t 0/3] Update DRM UAPI and add test for new hw info query John.C.Harrison
2022-06-03 16:25 ` [Intel-gfx] [PATCH v5 i-g-t 1/3] include/drm-uapi: Update to latest i915_drm.h John.C.Harrison
2022-06-03 16:25 ` [Intel-gfx] [PATCH v5 i-g-t 2/3] tests/i915/query: Add descriptions to existing tests John.C.Harrison
@ 2022-06-03 16:25 ` John.C.Harrison
2 siblings, 0 replies; 6+ messages in thread
From: John.C.Harrison @ 2022-06-03 16:25 UTC (permalink / raw)
To: IGT-Dev; +Cc: Intel-GFX, Slawomir Milczarek, Rodrigo Vivi
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Newer platforms have an embedded table giving details about that
platform's hardware configuration. This table can be retrieved from
the KMD via the existing query API. So add a test for it as both an
example of how to fetch the table and to validate the contents as much
as is possible.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Cc: Slawomir Milczarek <slawomir.milczarek@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
---
lib/intel_hwconfig_types.h | 118 ++++++++++++++++++++++++
tests/i915/i915_query.c | 180 +++++++++++++++++++++++++++++++++++++
2 files changed, 298 insertions(+)
create mode 100644 lib/intel_hwconfig_types.h
diff --git a/lib/intel_hwconfig_types.h b/lib/intel_hwconfig_types.h
new file mode 100644
index 000000000000..d5db217afba2
--- /dev/null
+++ b/lib/intel_hwconfig_types.h
@@ -0,0 +1,118 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2022 Intel Corporation
+ */
+
+#ifndef _INTEL_HWCONFIG_TYPES_H_
+#define _INTEL_HWCONFIG_TYPES_H_
+
+#include "intel_chipset.h"
+
+/**
+ * enum intel_hwconfig - Global definition of hwconfig table attributes
+ *
+ * Intel devices provide a KLV (Key/Length/Value) table containing
+ * the static hardware configuration for that platform.
+ * This enum defines the current attribute keys for this KLV.
+ */
+enum intel_hwconfig {
+ INTEL_HWCONFIG_MAX_SLICES_SUPPORTED = 1,
+ INTEL_HWCONFIG_MAX_DUAL_SUBSLICES_SUPPORTED, /* 2 */
+ INTEL_HWCONFIG_MAX_NUM_EU_PER_DSS, /* 3 */
+ INTEL_HWCONFIG_NUM_PIXEL_PIPES, /* 4 */
+ INTEL_HWCONFIG_DEPRECATED_MAX_NUM_GEOMETRY_PIPES, /* 5 */
+ INTEL_HWCONFIG_DEPRECATED_L3_CACHE_SIZE_IN_KB, /* 6 */
+ INTEL_HWCONFIG_DEPRECATED_L3_BANK_COUNT, /* 7 */
+ INTEL_HWCONFIG_L3_CACHE_WAYS_SIZE_IN_BYTES, /* 8 */
+ INTEL_HWCONFIG_L3_CACHE_WAYS_PER_SECTOR, /* 9 */
+ INTEL_HWCONFIG_MAX_MEMORY_CHANNELS, /* 10 */
+ INTEL_HWCONFIG_MEMORY_TYPE, /* 11 */
+ INTEL_HWCONFIG_CACHE_TYPES, /* 12 */
+ INTEL_HWCONFIG_LOCAL_MEMORY_PAGE_SIZES_SUPPORTED, /* 13 */
+ INTEL_HWCONFIG_DEPRECATED_SLM_SIZE_IN_KB, /* 14 */
+ INTEL_HWCONFIG_NUM_THREADS_PER_EU, /* 15 */
+ INTEL_HWCONFIG_TOTAL_VS_THREADS, /* 16 */
+ INTEL_HWCONFIG_TOTAL_GS_THREADS, /* 17 */
+ INTEL_HWCONFIG_TOTAL_HS_THREADS, /* 18 */
+ INTEL_HWCONFIG_TOTAL_DS_THREADS, /* 19 */
+ INTEL_HWCONFIG_TOTAL_VS_THREADS_POCS, /* 20 */
+ INTEL_HWCONFIG_TOTAL_PS_THREADS, /* 21 */
+ INTEL_HWCONFIG_DEPRECATED_MAX_FILL_RATE, /* 22 */
+ INTEL_HWCONFIG_MAX_RCS, /* 23 */
+ INTEL_HWCONFIG_MAX_CCS, /* 24 */
+ INTEL_HWCONFIG_MAX_VCS, /* 25 */
+ INTEL_HWCONFIG_MAX_VECS, /* 26 */
+ INTEL_HWCONFIG_MAX_COPY_CS, /* 27 */
+ INTEL_HWCONFIG_DEPRECATED_URB_SIZE_IN_KB, /* 28 */
+ INTEL_HWCONFIG_MIN_VS_URB_ENTRIES, /* 29 */
+ INTEL_HWCONFIG_MAX_VS_URB_ENTRIES, /* 30 */
+ INTEL_HWCONFIG_MIN_PCS_URB_ENTRIES, /* 31 */
+ INTEL_HWCONFIG_MAX_PCS_URB_ENTRIES, /* 32 */
+ INTEL_HWCONFIG_MIN_HS_URB_ENTRIES, /* 33 */
+ INTEL_HWCONFIG_MAX_HS_URB_ENTRIES, /* 34 */
+ INTEL_HWCONFIG_MIN_GS_URB_ENTRIES, /* 35 */
+ INTEL_HWCONFIG_MAX_GS_URB_ENTRIES, /* 36 */
+ INTEL_HWCONFIG_MIN_DS_URB_ENTRIES, /* 37 */
+ INTEL_HWCONFIG_MAX_DS_URB_ENTRIES, /* 38 */
+ INTEL_HWCONFIG_PUSH_CONSTANT_URB_RESERVED_SIZE, /* 39 */
+ INTEL_HWCONFIG_POCS_PUSH_CONSTANT_URB_RESERVED_SIZE, /* 40 */
+ INTEL_HWCONFIG_URB_REGION_ALIGNMENT_SIZE_IN_BYTES, /* 41 */
+ INTEL_HWCONFIG_URB_ALLOCATION_SIZE_UNITS_IN_BYTES, /* 42 */
+ INTEL_HWCONFIG_MAX_URB_SIZE_CCS_IN_BYTES, /* 43 */
+ INTEL_HWCONFIG_VS_MIN_DEREF_BLOCK_SIZE_HANDLE_COUNT, /* 44 */
+ INTEL_HWCONFIG_DS_MIN_DEREF_BLOCK_SIZE_HANDLE_COUNT, /* 45 */
+ INTEL_HWCONFIG_NUM_RT_STACKS_PER_DSS, /* 46 */
+ INTEL_HWCONFIG_MAX_URB_STARTING_ADDRESS, /* 47 */
+ INTEL_HWCONFIG_MIN_CS_URB_ENTRIES, /* 48 */
+ INTEL_HWCONFIG_MAX_CS_URB_ENTRIES, /* 49 */
+ INTEL_HWCONFIG_L3_ALLOC_PER_BANK_URB, /* 50 */
+ INTEL_HWCONFIG_L3_ALLOC_PER_BANK_REST, /* 51 */
+ INTEL_HWCONFIG_L3_ALLOC_PER_BANK_DC, /* 52 */
+ INTEL_HWCONFIG_L3_ALLOC_PER_BANK_RO, /* 53 */
+ INTEL_HWCONFIG_L3_ALLOC_PER_BANK_Z, /* 54 */
+ INTEL_HWCONFIG_L3_ALLOC_PER_BANK_COLOR, /* 55 */
+ INTEL_HWCONFIG_L3_ALLOC_PER_BANK_UNIFIED_TILE_CACHE, /* 56 */
+ INTEL_HWCONFIG_L3_ALLOC_PER_BANK_COMMAND_BUFFER, /* 57 */
+ INTEL_HWCONFIG_L3_ALLOC_PER_BANK_RW, /* 58 */
+ INTEL_HWCONFIG_MAX_NUM_L3_CONFIGS, /* 59 */
+ INTEL_HWCONFIG_BINDLESS_SURFACE_OFFSET_BIT_COUNT, /* 60 */
+ INTEL_HWCONFIG_RESERVED_CCS_WAYS, /* 61 */
+ INTEL_HWCONFIG_CSR_SIZE_IN_MB, /* 62 */
+ INTEL_HWCONFIG_GEOMETRY_PIPES_PER_SLICE, /* 63 */
+ INTEL_HWCONFIG_L3_BANK_SIZE_IN_KB, /* 64 */
+ INTEL_HWCONFIG_SLM_SIZE_PER_DSS, /* 65 */
+ INTEL_HWCONFIG_MAX_PIXEL_FILL_RATE_PER_SLICE, /* 66 */
+ INTEL_HWCONFIG_MAX_PIXEL_FILL_RATE_PER_DSS, /* 67 */
+ INTEL_HWCONFIG_URB_SIZE_PER_SLICE_IN_KB, /* 68 */
+ INTEL_HWCONFIG_URB_SIZE_PER_L3_BANK_COUNT_IN_KB, /* 69 */
+ INTEL_HWCONFIG_MAX_SUBSLICE, /* 70 */
+ INTEL_HWCONFIG_MAX_EU_PER_SUBSLICE, /* 71 */
+ INTEL_HWCONFIG_RAMBO_L3_BANK_SIZE_IN_KB, /* 72 */
+ INTEL_HWCONFIG_SLM_SIZE_PER_SS_IN_KB, /* 73 */
+ INTEL_HWCONFIG_NUM_HBM_STACKS_PER_TILE, /* 74 */
+ INTEL_HWCONFIG_NUM_CHANNELS_PER_HBM_STACK, /* 75 */
+ INTEL_HWCONFIG_HBM_CHANNEL_WIDTH_IN_BYTES, /* 76 */
+ INTEL_HWCONFIG_MIN_TASK_URB_ENTRIES, /* 77 */
+ INTEL_HWCONFIG_MAX_TASK_URB_ENTRIES, /* 78 */
+ INTEL_HWCONFIG_MIN_MESH_URB_ENTRIES, /* 79 */
+ INTEL_HWCONFIG_MAX_MESH_URB_ENTRIES, /* 80 */
+ __INTEL_HWCONFIG_KEY_LIMIT
+};
+
+enum {
+ INTEL_HWCONFIG_MEMORY_TYPE_LPDDR4 = 0,
+ INTEL_HWCONFIG_MEMORY_TYPE_LPDDR5,
+ INTEL_HWCONFIG_MEMORY_TYPE_HBM2,
+ INTEL_HWCONFIG_MEMORY_TYPE_HBM2e,
+ INTEL_HWCONFIG_MEMORY_TYPE_GDDR6,
+ __INTEL_HWCONFIG_MEMORY_TYPE_LIMIT
+};
+
+enum {
+ INTEL_HWCONFIG_CACHE_TYPE_L3 = 0,
+ INTEL_HWCONFIG_CACHE_TYPE_LLC,
+ INTEL_HWCONFIG_CACHE_TYPE_EDRAM,
+ __INTEL_HWCONFIG_CACHE_TYPE_LIMIT
+};
+
+#endif /* _INTEL_HWCONFIG_TYPES_H_ */
diff --git a/tests/i915/i915_query.c b/tests/i915/i915_query.c
index 35a91d245ec1..f160769f52f1 100644
--- a/tests/i915/i915_query.c
+++ b/tests/i915/i915_query.c
@@ -22,6 +22,7 @@
*/
#include "igt.h"
+#include "intel_hwconfig_types.h"
#include <limits.h>
@@ -912,6 +913,181 @@ static void test_query_geometry_subslices(int fd)
}
}
+static const char * const hwconfig_keys[] = {
+ [INTEL_HWCONFIG_MAX_SLICES_SUPPORTED] = "Maximum number of Slices",
+ [INTEL_HWCONFIG_MAX_DUAL_SUBSLICES_SUPPORTED] = "Maximum number of DSS",
+ [INTEL_HWCONFIG_MAX_NUM_EU_PER_DSS] = "Maximum number of EUs per DSS",
+ [INTEL_HWCONFIG_NUM_PIXEL_PIPES] = "Pixel Pipes",
+ [INTEL_HWCONFIG_DEPRECATED_MAX_NUM_GEOMETRY_PIPES] = "[DEPRECATED] Geometry Pipes",
+ [INTEL_HWCONFIG_DEPRECATED_L3_CACHE_SIZE_IN_KB] = "[DEPRECATED] L3 Size (in KB)",
+ [INTEL_HWCONFIG_DEPRECATED_L3_BANK_COUNT] = "[DEPRECATED] L3 Bank Count",
+ [INTEL_HWCONFIG_L3_CACHE_WAYS_SIZE_IN_BYTES] = "L3 Cache Ways Size (in bytes)",
+ [INTEL_HWCONFIG_L3_CACHE_WAYS_PER_SECTOR] = "L3 Cache Ways Per Sector",
+ [INTEL_HWCONFIG_MAX_MEMORY_CHANNELS] = "Memory Channels",
+ [INTEL_HWCONFIG_MEMORY_TYPE] = "Memory type",
+ [INTEL_HWCONFIG_CACHE_TYPES] = "Cache types",
+ [INTEL_HWCONFIG_LOCAL_MEMORY_PAGE_SIZES_SUPPORTED] = "Local memory page size",
+ [INTEL_HWCONFIG_DEPRECATED_SLM_SIZE_IN_KB] = "[DEPRECATED] SLM Size (in KB)",
+ [INTEL_HWCONFIG_NUM_THREADS_PER_EU] = "Num thread per EU",
+ [INTEL_HWCONFIG_TOTAL_VS_THREADS] = "Maximum Vertex Shader threads",
+ [INTEL_HWCONFIG_TOTAL_GS_THREADS] = "Maximum Geometry Shader threads",
+ [INTEL_HWCONFIG_TOTAL_HS_THREADS] = "Maximum Hull Shader threads",
+ [INTEL_HWCONFIG_TOTAL_DS_THREADS] = "Maximum Domain Shader threads",
+ [INTEL_HWCONFIG_TOTAL_VS_THREADS_POCS] = "Maximum Vertex Shader Threads for POCS",
+ [INTEL_HWCONFIG_TOTAL_PS_THREADS] = "Maximum Pixel Shader Threads",
+ [INTEL_HWCONFIG_DEPRECATED_MAX_FILL_RATE] = "[DEPRECATED] Maximum pixel rate for Fill",
+ [INTEL_HWCONFIG_MAX_RCS] = "MaxRCS",
+ [INTEL_HWCONFIG_MAX_CCS] = "MaxCCS",
+ [INTEL_HWCONFIG_MAX_VCS] = "MaxVCS",
+ [INTEL_HWCONFIG_MAX_VECS] = "MaxVECS",
+ [INTEL_HWCONFIG_MAX_COPY_CS] = "MaxCopyCS",
+ [INTEL_HWCONFIG_DEPRECATED_URB_SIZE_IN_KB] = "[DEPRECATED] URB Size (in KB)",
+ [INTEL_HWCONFIG_MIN_VS_URB_ENTRIES] = "The minimum number of VS URB entries.",
+ [INTEL_HWCONFIG_MAX_VS_URB_ENTRIES] = "The maximum number of VS URB entries.",
+ [INTEL_HWCONFIG_MIN_PCS_URB_ENTRIES] = "The minimum number of PCS URB entries",
+ [INTEL_HWCONFIG_MAX_PCS_URB_ENTRIES] = "The maximum number of PCS URB entries",
+ [INTEL_HWCONFIG_MIN_HS_URB_ENTRIES] = "The minimum number of HS URB entries",
+ [INTEL_HWCONFIG_MAX_HS_URB_ENTRIES] = "The maximum number of HS URB entries",
+ [INTEL_HWCONFIG_MIN_GS_URB_ENTRIES] = "The minimum number of GS URB entries",
+ [INTEL_HWCONFIG_MAX_GS_URB_ENTRIES] = "The maximum number of GS URB entries",
+ [INTEL_HWCONFIG_MIN_DS_URB_ENTRIES] = "The minimum number of DS URB Entries",
+ [INTEL_HWCONFIG_MAX_DS_URB_ENTRIES] = "The maximum number of DS URB Entries",
+ [INTEL_HWCONFIG_PUSH_CONSTANT_URB_RESERVED_SIZE] = "Push Constant URB Reserved Size (in bytes)",
+ [INTEL_HWCONFIG_POCS_PUSH_CONSTANT_URB_RESERVED_SIZE] = "POCS Push Constant URB Reserved Size (in bytes)",
+ [INTEL_HWCONFIG_URB_REGION_ALIGNMENT_SIZE_IN_BYTES] = "URB Region Alignment Size (in bytes)",
+ [INTEL_HWCONFIG_URB_ALLOCATION_SIZE_UNITS_IN_BYTES] = "URB Allocation Size Units (in bytes)",
+ [INTEL_HWCONFIG_MAX_URB_SIZE_CCS_IN_BYTES] = "Max URB Size CCS (in bytes)",
+ [INTEL_HWCONFIG_VS_MIN_DEREF_BLOCK_SIZE_HANDLE_COUNT] = "VS Min Deref BlockSize Handle Count",
+ [INTEL_HWCONFIG_DS_MIN_DEREF_BLOCK_SIZE_HANDLE_COUNT] = "DS Min Deref Block Size Handle Count",
+ [INTEL_HWCONFIG_NUM_RT_STACKS_PER_DSS] = "Num RT Stacks Per DSS",
+ [INTEL_HWCONFIG_MAX_URB_STARTING_ADDRESS] = "Max URB Starting Address",
+ [INTEL_HWCONFIG_MIN_CS_URB_ENTRIES] = "Min CS URB Entries",
+ [INTEL_HWCONFIG_MAX_CS_URB_ENTRIES] = "Max CS URB Entries",
+ [INTEL_HWCONFIG_L3_ALLOC_PER_BANK_URB] = "L3 Alloc Per Bank - URB",
+ [INTEL_HWCONFIG_L3_ALLOC_PER_BANK_REST] = "L3 Alloc Per Bank - Rest",
+ [INTEL_HWCONFIG_L3_ALLOC_PER_BANK_DC] = "L3 Alloc Per Bank - DC",
+ [INTEL_HWCONFIG_L3_ALLOC_PER_BANK_RO] = "L3 Alloc Per Bank - RO",
+ [INTEL_HWCONFIG_L3_ALLOC_PER_BANK_Z] = "L3 Alloc Per Bank - Z",
+ [INTEL_HWCONFIG_L3_ALLOC_PER_BANK_COLOR] = "L3 Alloc Per Bank - Color",
+ [INTEL_HWCONFIG_L3_ALLOC_PER_BANK_UNIFIED_TILE_CACHE] = "L3 Alloc Per Bank - Unified Tile Cache",
+ [INTEL_HWCONFIG_L3_ALLOC_PER_BANK_COMMAND_BUFFER] = "L3 Alloc Per Bank - Command Buffer",
+ [INTEL_HWCONFIG_L3_ALLOC_PER_BANK_RW] = "L3 Alloc Per Bank - RW",
+ [INTEL_HWCONFIG_MAX_NUM_L3_CONFIGS] = "Num L3 Configs",
+ [INTEL_HWCONFIG_BINDLESS_SURFACE_OFFSET_BIT_COUNT] = "Bindless Surface Offset Bit Count",
+ [INTEL_HWCONFIG_RESERVED_CCS_WAYS] = "Reserved CCS ways",
+ [INTEL_HWCONFIG_CSR_SIZE_IN_MB] = "CSR Size (in MB)",
+ [INTEL_HWCONFIG_GEOMETRY_PIPES_PER_SLICE] = "Geometry pipes per slice",
+ [INTEL_HWCONFIG_L3_BANK_SIZE_IN_KB] = "L3 bank size (in KB)",
+ [INTEL_HWCONFIG_SLM_SIZE_PER_DSS] = "SLM size per DSS",
+ [INTEL_HWCONFIG_MAX_PIXEL_FILL_RATE_PER_SLICE] = "Max pixel fill rate per slice",
+ [INTEL_HWCONFIG_MAX_PIXEL_FILL_RATE_PER_DSS] = "Max pixel fill rate per DSS",
+ [INTEL_HWCONFIG_URB_SIZE_PER_SLICE_IN_KB] = "URB size per slice (in KB)",
+ [INTEL_HWCONFIG_URB_SIZE_PER_L3_BANK_COUNT_IN_KB] = "URB size per L3 bank count (in KB)",
+ [INTEL_HWCONFIG_MAX_SUBSLICE] = "Max subslices",
+ [INTEL_HWCONFIG_MAX_EU_PER_SUBSLICE] = "Max EUs per subslice",
+ [INTEL_HWCONFIG_RAMBO_L3_BANK_SIZE_IN_KB] = "RAMBO L3 bank size (in KB)",
+ [INTEL_HWCONFIG_SLM_SIZE_PER_SS_IN_KB] = "SLM size per SS (in KB)",
+ [INTEL_HWCONFIG_NUM_HBM_STACKS_PER_TILE] = "Num HBM Stacks Per Tile",
+ [INTEL_HWCONFIG_NUM_CHANNELS_PER_HBM_STACK] = "Num Channels Per HBM Stack",
+ [INTEL_HWCONFIG_HBM_CHANNEL_WIDTH_IN_BYTES] = "HBM Channel Width (in bytes)",
+ [INTEL_HWCONFIG_MIN_TASK_URB_ENTRIES] = "Min Task URB Entries",
+ [INTEL_HWCONFIG_MAX_TASK_URB_ENTRIES] = "Max Task URB Entries",
+ [INTEL_HWCONFIG_MIN_MESH_URB_ENTRIES] = "Min Mesh URB Entries",
+ [INTEL_HWCONFIG_MAX_MESH_URB_ENTRIES] = "Max Mesh URB Entries",
+};
+
+static const char * const hwconfig_memtypes[] = {
+ [INTEL_HWCONFIG_MEMORY_TYPE_LPDDR4] = "LPDDR4",
+ [INTEL_HWCONFIG_MEMORY_TYPE_LPDDR5] = "LPDDR5",
+ [INTEL_HWCONFIG_MEMORY_TYPE_HBM2] = "HBM2",
+ [INTEL_HWCONFIG_MEMORY_TYPE_HBM2e] = "HBM2e",
+ [INTEL_HWCONFIG_MEMORY_TYPE_GDDR6] = "GDDR6",
+};
+
+static const char * const hwconfig_cachetypes[] = {
+ [INTEL_HWCONFIG_CACHE_TYPE_L3] = "L3",
+ [INTEL_HWCONFIG_CACHE_TYPE_LLC] = "LLC",
+ [INTEL_HWCONFIG_CACHE_TYPE_EDRAM] = "EDRAM",
+};
+
+static void query_parse_and_validate_hwconfig_table(int i915)
+{
+ struct drm_i915_query_item item = {
+ .query_id = DRM_I915_QUERY_HWCONFIG_BLOB,
+ };
+ uint32_t *data, value;
+ int i = 0;
+ int len, j, max_words, table_size;
+
+ igt_assert(ARRAY_SIZE(hwconfig_keys) == __INTEL_HWCONFIG_KEY_LIMIT);
+ igt_assert(ARRAY_SIZE(hwconfig_memtypes) == __INTEL_HWCONFIG_MEMORY_TYPE_LIMIT);
+ igt_assert(ARRAY_SIZE(hwconfig_cachetypes) == __INTEL_HWCONFIG_CACHE_TYPE_LIMIT);
+
+ i915_query_items(i915, &item, 1);
+ table_size = item.length;
+ igt_require(table_size > 0);
+
+ data = malloc(table_size);
+ igt_assert(data);
+ memset(data, 0, table_size);
+ item.data_ptr = to_user_pointer(data);
+
+ i915_query_items(i915, &item, 1);
+ igt_assert(item.length == table_size);
+ igt_info("Table size = %d bytes\n", table_size);
+ igt_assert(table_size > 0);
+
+ /* HWConfig table is a list of KLV sets */
+ max_words = table_size / sizeof(uint32_t);
+ igt_assert(max_words * sizeof(uint32_t) == table_size);
+ while (i < max_words) {
+ /* Attribute ID zero is invalid */
+ igt_assert(data[i] > 0);
+ igt_assert(data[i] < __INTEL_HWCONFIG_KEY_LIMIT);
+
+ len = data[i + 1];
+ igt_assert(len > 0);
+ igt_assert((i + 2 + len) <= max_words);
+
+ igt_info("[%2d] %s: ", data[i], hwconfig_keys[data[i]]);
+
+ value = data[i + 2];
+ switch (data[i]) {
+ case INTEL_HWCONFIG_MEMORY_TYPE:
+ igt_assert(len == 1);
+ igt_assert(value < __INTEL_HWCONFIG_MEMORY_TYPE_LIMIT);
+ igt_info("%s\n", hwconfig_memtypes[value]);
+ break;
+
+ case INTEL_HWCONFIG_CACHE_TYPES:
+ igt_assert(len == 1);
+
+ if (!value)
+ igt_info("-\n");
+
+ j = 0;
+ while (value) {
+ if (value & BIT(j)) {
+ value &= ~BIT(j);
+ igt_assert(j < __INTEL_HWCONFIG_CACHE_TYPE_LIMIT);
+ igt_info("%s%s", hwconfig_cachetypes[j], value ? ", " : "\n");
+ }
+ }
+ break;
+
+ default:
+ for (j = i + 2; j < i + 1 + len; j++)
+ igt_info("%d, ", data[j]);
+ igt_info("%d\n", data[j]);
+ }
+
+ /* Advance to next key */
+ i += 2 + len;
+ }
+
+ free(data);
+}
+
igt_main
{
int fd = -1;
@@ -998,6 +1174,10 @@ igt_main
engines(fd);
}
+ igt_describe("Test DRM_I915_QUERY_HWCONFIG_BLOB query");
+ igt_subtest("hwconfig_table")
+ query_parse_and_validate_hwconfig_table(fd);
+
igt_fixture {
close(fd);
}
--
2.36.0
^ permalink raw reply related [flat|nested] 6+ messages in thread