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/* SPDX-License-Identifier: (GPL-2.0-only WITH Linux-syscall-note) OR MIT */
/* Copyright (c) 2023 Imagination Technologies Ltd. */
#ifndef PVR_DRM_UAPI_H
#define PVR_DRM_UAPI_H
#include "drm.h"
#include <linux/const.h>
#include <linux/types.h>
#if defined(__cplusplus)
extern "C" {
#endif
/**
* DOC: PowerVR UAPI
*
* The PowerVR IOCTL argument structs have a few limitations in place, in
* addition to the standard kernel restrictions:
*
* - All members must be type-aligned.
* - The overall struct must be padded to 64-bit alignment.
* - Explicit padding is almost always required. This takes the form of
* ``_padding_[x]`` members of sufficient size to pad to the next power-of-two
* alignment, where [x] is the offset into the struct in hexadecimal. Arrays
* are never used for alignment. Padding fields must be zeroed; this is
* always checked.
* - Unions may only appear as the last member of a struct.
* - Individual union members may grow in the future. The space between the
* end of a union member and the end of its containing union is considered
* "implicit padding" and must be zeroed. This is always checked.
*
* In addition to the IOCTL argument structs, the PowerVR UAPI makes use of
* DEV_QUERY argument structs. These are used to fetch information about the
* device and runtime. These structs are subject to the same rules set out
* above.
*/
/**
* struct drm_pvr_obj_array - Container used to pass arrays of objects
*
* It is not unusual to have to extend objects to pass new parameters, and the DRM
* ioctl infrastructure is supporting that by padding ioctl arguments with zeros
* when the data passed by userspace is smaller than the struct defined in the
* drm_ioctl_desc, thus keeping things backward compatible. This type is just
* applying the same concepts to indirect objects passed through arrays referenced
* from the main ioctl arguments structure: the stride basically defines the size
* of the object passed by userspace, which allows the kernel driver to pad with
* zeros when it's smaller than the size of the object it expects.
*
* Use ``DRM_PVR_OBJ_ARRAY()`` to fill object array fields, unless you
* have a very good reason not to.
*/
struct drm_pvr_obj_array {
/** @stride: Stride of object struct. Used for versioning. */
__u32 stride;
/** @count: Number of objects in the array. */
__u32 count;
/** @array: User pointer to an array of objects. */
__u64 array;
};
/**
* DRM_PVR_OBJ_ARRAY() - Helper macro for filling &struct drm_pvr_obj_array.
* @cnt: Number of elements pointed to py @ptr.
* @ptr: Pointer to start of a C array.
*
* Return: Literal of type &struct drm_pvr_obj_array.
*/
#define DRM_PVR_OBJ_ARRAY(cnt, ptr) \
{ .stride = sizeof((ptr)[0]), .count = (cnt), .array = (__u64)(uintptr_t)(ptr) }
/**
* DOC: PowerVR IOCTL interface
*/
/**
* PVR_IOCTL() - Build a PowerVR IOCTL number
* @_ioctl: An incrementing id for this IOCTL. Added to %DRM_COMMAND_BASE.
* @_mode: Must be one of %DRM_IOR, %DRM_IOW or %DRM_IOWR.
* @_data: The type of the args struct passed by this IOCTL.
*
* The struct referred to by @_data must have a ``drm_pvr_ioctl_`` prefix and an
* ``_args suffix``. They are therefore omitted from @_data.
*
* This should only be used to build the constants described below; it should
* never be used to call an IOCTL directly.
*
* Return: An IOCTL number to be passed to ioctl() from userspace.
*/
#define PVR_IOCTL(_ioctl, _mode, _data) \
_mode(DRM_COMMAND_BASE + (_ioctl), struct drm_pvr_ioctl_##_data##_args)
#define DRM_IOCTL_PVR_DEV_QUERY PVR_IOCTL(0x00, DRM_IOWR, dev_query)
#define DRM_IOCTL_PVR_CREATE_BO PVR_IOCTL(0x01, DRM_IOWR, create_bo)
#define DRM_IOCTL_PVR_GET_BO_MMAP_OFFSET PVR_IOCTL(0x02, DRM_IOWR, get_bo_mmap_offset)
#define DRM_IOCTL_PVR_CREATE_VM_CONTEXT PVR_IOCTL(0x03, DRM_IOWR, create_vm_context)
#define DRM_IOCTL_PVR_DESTROY_VM_CONTEXT PVR_IOCTL(0x04, DRM_IOW, destroy_vm_context)
#define DRM_IOCTL_PVR_VM_MAP PVR_IOCTL(0x05, DRM_IOW, vm_map)
#define DRM_IOCTL_PVR_VM_UNMAP PVR_IOCTL(0x06, DRM_IOW, vm_unmap)
#define DRM_IOCTL_PVR_CREATE_CONTEXT PVR_IOCTL(0x07, DRM_IOWR, create_context)
#define DRM_IOCTL_PVR_DESTROY_CONTEXT PVR_IOCTL(0x08, DRM_IOW, destroy_context)
#define DRM_IOCTL_PVR_CREATE_FREE_LIST PVR_IOCTL(0x09, DRM_IOWR, create_free_list)
#define DRM_IOCTL_PVR_DESTROY_FREE_LIST PVR_IOCTL(0x0a, DRM_IOW, destroy_free_list)
#define DRM_IOCTL_PVR_CREATE_HWRT_DATASET PVR_IOCTL(0x0b, DRM_IOWR, create_hwrt_dataset)
#define DRM_IOCTL_PVR_DESTROY_HWRT_DATASET PVR_IOCTL(0x0c, DRM_IOW, destroy_hwrt_dataset)
#define DRM_IOCTL_PVR_SUBMIT_JOBS PVR_IOCTL(0x0d, DRM_IOW, submit_jobs)
/**
* DOC: PowerVR IOCTL DEV_QUERY interface
*/
/**
* struct drm_pvr_dev_query_gpu_info - Container used to fetch information about
* the graphics processor.
*
* When fetching this type &struct drm_pvr_ioctl_dev_query_args.type must be set
* to %DRM_PVR_DEV_QUERY_GPU_INFO_GET.
*/
struct drm_pvr_dev_query_gpu_info {
/**
* @gpu_id: GPU identifier.
*
* For all currently supported GPUs this is the BVNC encoded as a 64-bit
* value as follows:
*
* +--------+--------+--------+-------+
* | 63..48 | 47..32 | 31..16 | 15..0 |
* +========+========+========+=======+
* | B | V | N | C |
* +--------+--------+--------+-------+
*/
__u64 gpu_id;
/**
* @num_phantoms: Number of Phantoms present.
*/
__u32 num_phantoms;
/** @_padding_c: Reserved. This field must be zeroed. */
__u32 _padding_c;
};
/**
* struct drm_pvr_dev_query_runtime_info - Container used to fetch information
* about the graphics runtime.
*
* When fetching this type &struct drm_pvr_ioctl_dev_query_args.type must be set
* to %DRM_PVR_DEV_QUERY_RUNTIME_INFO_GET.
*/
struct drm_pvr_dev_query_runtime_info {
/**
* @free_list_min_pages: Minimum allowed free list size,
* in PM physical pages.
*/
__u64 free_list_min_pages;
/**
* @free_list_max_pages: Maximum allowed free list size,
* in PM physical pages.
*/
__u64 free_list_max_pages;
/**
* @common_store_alloc_region_size: Size of the Allocation
* Region within the Common Store used for coefficient and shared
* registers, in dwords.
*/
__u32 common_store_alloc_region_size;
/**
* @common_store_partition_space_size: Size of the
* Partition Space within the Common Store for output buffers, in
* dwords.
*/
__u32 common_store_partition_space_size;
/**
* @max_coeffs: Maximum coefficients, in dwords.
*/
__u32 max_coeffs;
/**
* @cdm_max_local_mem_size_regs: Maximum amount of local
* memory available to a compute kernel, in dwords.
*/
__u32 cdm_max_local_mem_size_regs;
};
/**
* struct drm_pvr_dev_query_quirks - Container used to fetch information about
* hardware fixes for which the device may require support in the user mode
* driver.
*
* When fetching this type &struct drm_pvr_ioctl_dev_query_args.type must be set
* to %DRM_PVR_DEV_QUERY_QUIRKS_GET.
*/
struct drm_pvr_dev_query_quirks {
/**
* @quirks: A userspace address for the hardware quirks __u32 array.
*
* The first @musthave_count items in the list are quirks that the
* client must support for this device. If userspace does not support
* all these quirks then functionality is not guaranteed and client
* initialisation must fail.
* The remaining quirks in the list affect userspace and the kernel or
* firmware. They are disabled by default and require userspace to
* opt-in. The opt-in mechanism depends on the quirk.
*/
__u64 quirks;
/** @count: Length of @quirks (number of __u32). */
__u16 count;
/**
* @musthave_count: The number of entries in @quirks that are
* mandatory, starting at index 0.
*/
__u16 musthave_count;
/** @_padding_c: Reserved. This field must be zeroed. */
__u32 _padding_c;
};
/**
* struct drm_pvr_dev_query_enhancements - Container used to fetch information
* about optional enhancements supported by the device that require support in
* the user mode driver.
*
* When fetching this type &struct drm_pvr_ioctl_dev_query_args.type must be set
* to %DRM_PVR_DEV_ENHANCEMENTS_GET.
*/
struct drm_pvr_dev_query_enhancements {
/**
* @enhancements: A userspace address for the hardware enhancements
* __u32 array.
*
* These enhancements affect userspace and the kernel or firmware. They
* are disabled by default and require userspace to opt-in. The opt-in
* mechanism depends on the enhancement.
*/
__u64 enhancements;
/** @count: Length of @enhancements (number of __u32). */
__u16 count;
/** @_padding_a: Reserved. This field must be zeroed. */
__u16 _padding_a;
/** @_padding_c: Reserved. This field must be zeroed. */
__u32 _padding_c;
};
/**
* enum drm_pvr_heap_id - Array index for heap info data returned by
* %DRM_PVR_DEV_QUERY_HEAP_INFO_GET.
*
* For compatibility reasons all indices will be present in the returned array,
* however some heaps may not be present. These are indicated where
* &struct drm_pvr_heap.size is set to zero.
*/
enum drm_pvr_heap_id {
/** @DRM_PVR_HEAP_GENERAL: General purpose heap. */
DRM_PVR_HEAP_GENERAL = 0,
/** @DRM_PVR_HEAP_PDS_CODE_DATA: PDS code and data heap. */
DRM_PVR_HEAP_PDS_CODE_DATA,
/** @DRM_PVR_HEAP_USC_CODE: USC code heap. */
DRM_PVR_HEAP_USC_CODE,
/** @DRM_PVR_HEAP_RGNHDR: Region header heap. Only used if GPU has BRN63142. */
DRM_PVR_HEAP_RGNHDR,
/** @DRM_PVR_HEAP_VIS_TEST: Visibility test heap. */
DRM_PVR_HEAP_VIS_TEST,
/** @DRM_PVR_HEAP_TRANSFER_FRAG: Transfer fragment heap. */
DRM_PVR_HEAP_TRANSFER_FRAG,
/**
* @DRM_PVR_HEAP_COUNT: The number of heaps returned by
* %DRM_PVR_DEV_QUERY_HEAP_INFO_GET.
*
* More heaps may be added, so this also serves as the copy limit when
* sent by the caller.
*/
DRM_PVR_HEAP_COUNT
/* Please only add additional heaps above DRM_PVR_HEAP_COUNT! */
};
/**
* struct drm_pvr_heap - Container holding information about a single heap.
*
* This will always be fetched as an array.
*/
struct drm_pvr_heap {
/** @base: Base address of heap. */
__u64 base;
/** @size: Size of heap, in bytes. Will be 0 if the heap is not present. */
__u64 size;
/** @flags: Flags for this heap. Currently always 0. */
__u32 flags;
/** @page_size_log2: Log2 of page size. */
__u32 page_size_log2;
};
/**
* struct drm_pvr_dev_query_heap_info - Container used to fetch information
* about heaps supported by the device driver.
*
* Please note all driver-supported heaps will be returned up to &heaps.count.
* Some heaps will not be present in all devices, which will be indicated by
* &struct drm_pvr_heap.size being set to zero.
*
* When fetching this type &struct drm_pvr_ioctl_dev_query_args.type must be set
* to %DRM_PVR_DEV_QUERY_HEAP_INFO_GET.
*/
struct drm_pvr_dev_query_heap_info {
/**
* @heaps: Array of &struct drm_pvr_heap. If pointer is NULL, the count
* and stride will be updated with those known to the driver version, to
* facilitate allocation by the caller.
*/
struct drm_pvr_obj_array heaps;
};
/**
* enum drm_pvr_static_data_area_usage - Array index for static data area info
* returned by %DRM_PVR_DEV_QUERY_STATIC_DATA_AREAS_GET.
*
* For compatibility reasons all indices will be present in the returned array,
* however some areas may not be present. These are indicated where
* &struct drm_pvr_static_data_area.size is set to zero.
*/
enum drm_pvr_static_data_area_usage {
/**
* @DRM_PVR_STATIC_DATA_AREA_EOT: End of Tile PDS program code segment.
*
* The End of Tile PDS task runs at completion of a tile during a fragment job, and is
* responsible for emitting the tile to the Pixel Back End.
*/
DRM_PVR_STATIC_DATA_AREA_EOT = 0,
/**
* @DRM_PVR_STATIC_DATA_AREA_FENCE: MCU fence area, used during cache flush and
* invalidation.
*
* This must point to valid physical memory but the contents otherwise are not used.
*/
DRM_PVR_STATIC_DATA_AREA_FENCE,
/**
* @DRM_PVR_STATIC_DATA_AREA_VDM_SYNC: VDM sync program.
*
* The VDM sync program is used to synchronise multiple areas of the GPU hardware.
*/
DRM_PVR_STATIC_DATA_AREA_VDM_SYNC,
/**
* @DRM_PVR_STATIC_DATA_AREA_YUV_CSC: YUV coefficients.
*
* Area contains up to 16 slots with stride of 64 bytes. Each is a 3x4 matrix of u16 fixed
* point numbers, with 1 sign bit, 2 integer bits and 13 fractional bits.
*
* The slots are :
* 0 = VK_SAMPLER_YCBCR_MODEL_CONVERSION_RGB_IDENTITY_KHR
* 1 = VK_SAMPLER_YCBCR_MODEL_CONVERSION_YCBCR_IDENTITY_KHR (full range)
* 2 = VK_SAMPLER_YCBCR_MODEL_CONVERSION_YCBCR_IDENTITY_KHR (conformant range)
* 3 = VK_SAMPLER_YCBCR_MODEL_CONVERSION_YCBCR_709_KHR (full range)
* 4 = VK_SAMPLER_YCBCR_MODEL_CONVERSION_YCBCR_709_KHR (conformant range)
* 5 = VK_SAMPLER_YCBCR_MODEL_CONVERSION_YCBCR_601_KHR (full range)
* 6 = VK_SAMPLER_YCBCR_MODEL_CONVERSION_YCBCR_601_KHR (conformant range)
* 7 = VK_SAMPLER_YCBCR_MODEL_CONVERSION_YCBCR_2020_KHR (full range)
* 8 = VK_SAMPLER_YCBCR_MODEL_CONVERSION_YCBCR_2020_KHR (conformant range)
* 9 = VK_SAMPLER_YCBCR_MODEL_CONVERSION_YCBCR_601_KHR (conformant range, 10 bit)
* 10 = VK_SAMPLER_YCBCR_MODEL_CONVERSION_YCBCR_709_KHR (conformant range, 10 bit)
* 11 = VK_SAMPLER_YCBCR_MODEL_CONVERSION_YCBCR_2020_KHR (conformant range, 10 bit)
* 14 = Identity (biased)
* 15 = Identity
*/
DRM_PVR_STATIC_DATA_AREA_YUV_CSC,
};
/**
* struct drm_pvr_static_data_area - Container holding information about a
* single static data area.
*
* This will always be fetched as an array.
*/
struct drm_pvr_static_data_area {
/**
* @area_usage: Usage of static data area.
* See &enum drm_pvr_static_data_area_usage.
*/
__u16 area_usage;
/**
* @location_heap_id: Array index of heap where this of static data
* area is located. This array is fetched using
* %DRM_PVR_DEV_QUERY_HEAP_INFO_GET.
*/
__u16 location_heap_id;
/** @size: Size of static data area. Not present if set to zero. */
__u32 size;
/** @offset: Offset of static data area from start of heap. */
__u64 offset;
};
/**
* struct drm_pvr_dev_query_static_data_areas - Container used to fetch
* information about the static data areas in heaps supported by the device
* driver.
*
* Please note all driver-supported static data areas will be returned up to
* &static_data_areas.count. Some will not be present for all devices which,
* will be indicated by &struct drm_pvr_static_data_area.size being set to zero.
*
* Further, some heaps will not be present either. See &struct
* drm_pvr_dev_query_heap_info.
*
* When fetching this type &struct drm_pvr_ioctl_dev_query_args.type must be set
* to %DRM_PVR_DEV_QUERY_STATIC_DATA_AREAS_GET.
*/
struct drm_pvr_dev_query_static_data_areas {
/**
* @static_data_areas: Array of &struct drm_pvr_static_data_area. If
* pointer is NULL, the count and stride will be updated with those
* known to the driver version, to facilitate allocation by the caller.
*/
struct drm_pvr_obj_array static_data_areas;
};
/**
* enum drm_pvr_dev_query - For use with &drm_pvr_ioctl_dev_query_args.type to
* indicate the type of the receiving container.
*
* Append only. Do not reorder.
*/
enum drm_pvr_dev_query {
/**
* @DRM_PVR_DEV_QUERY_GPU_INFO_GET: The dev query args contain a pointer
* to &struct drm_pvr_dev_query_gpu_info.
*/
DRM_PVR_DEV_QUERY_GPU_INFO_GET = 0,
/**
* @DRM_PVR_DEV_QUERY_RUNTIME_INFO_GET: The dev query args contain a
* pointer to &struct drm_pvr_dev_query_runtime_info.
*/
DRM_PVR_DEV_QUERY_RUNTIME_INFO_GET,
/**
* @DRM_PVR_DEV_QUERY_QUIRKS_GET: The dev query args contain a pointer
* to &struct drm_pvr_dev_query_quirks.
*/
DRM_PVR_DEV_QUERY_QUIRKS_GET,
/**
* @DRM_PVR_DEV_QUERY_ENHANCEMENTS_GET: The dev query args contain a
* pointer to &struct drm_pvr_dev_query_enhancements.
*/
DRM_PVR_DEV_QUERY_ENHANCEMENTS_GET,
/**
* @DRM_PVR_DEV_QUERY_HEAP_INFO_GET: The dev query args contain a
* pointer to &struct drm_pvr_dev_query_heap_info.
*/
DRM_PVR_DEV_QUERY_HEAP_INFO_GET,
/**
* @DRM_PVR_DEV_QUERY_STATIC_DATA_AREAS_GET: The dev query args contain
* a pointer to &struct drm_pvr_dev_query_static_data_areas.
*/
DRM_PVR_DEV_QUERY_STATIC_DATA_AREAS_GET,
};
/**
* struct drm_pvr_ioctl_dev_query_args - Arguments for %DRM_IOCTL_PVR_DEV_QUERY.
*/
struct drm_pvr_ioctl_dev_query_args {
/**
* @type: Type of query and output struct. See &enum drm_pvr_dev_query.
*/
__u32 type;
/**
* @size: Size of the receiving struct, see @type.
*
* After a successful call this will be updated to the written byte
* length.
* Can also be used to get the minimum byte length (see @pointer).
* This allows additional fields to be appended to the structs in
* future.
*/
__u32 size;
/**
* @pointer: Pointer to struct @type.
*
* Must be large enough to contain @size bytes.
* If pointer is NULL, the expected size will be returned in the @size
* field, but no other data will be written.
*/
__u64 pointer;
};
/**
* DOC: PowerVR IOCTL CREATE_BO interface
*/
/**
* DOC: Flags for CREATE_BO
*
* We use "device" to refer to the GPU here because of the ambiguity between CPU and GPU in some
* fonts.
*
* Device mapping options
* :DRM_PVR_BO_BYPASS_DEVICE_CACHE: Specify that device accesses to this memory will bypass the
* cache. This is used for buffers that will either be regularly updated by the CPU (eg free
* lists) or will be accessed only once and therefore isn't worth caching (eg partial render
* buffers).
* By default, the device flushes its memory caches after every job, so this is not normally
* required for coherency.
* :DRM_PVR_BO_PM_FW_PROTECT: Specify that only the Parameter Manager (PM) and/or firmware
* processor should be allowed to access this memory when mapped to the device. It is not
* valid to specify this flag with DRM_PVR_BO_ALLOW_CPU_USERSPACE_ACCESS.
*
* CPU mapping options
* :DRM_PVR_BO_ALLOW_CPU_USERSPACE_ACCESS: Allow userspace to map and access the contents of this
* memory. It is not valid to specify this flag with DRM_PVR_BO_PM_FW_PROTECT.
*/
#define DRM_PVR_BO_BYPASS_DEVICE_CACHE _BITULL(0)
#define DRM_PVR_BO_PM_FW_PROTECT _BITULL(1)
#define DRM_PVR_BO_ALLOW_CPU_USERSPACE_ACCESS _BITULL(2)
/* Bits 3..63 are reserved. */
#define DRM_PVR_BO_FLAGS_MASK (DRM_PVR_BO_BYPASS_DEVICE_CACHE | DRM_PVR_BO_PM_FW_PROTECT | \
DRM_PVR_BO_ALLOW_CPU_USERSPACE_ACCESS)
/**
* struct drm_pvr_ioctl_create_bo_args - Arguments for %DRM_IOCTL_PVR_CREATE_BO
*/
struct drm_pvr_ioctl_create_bo_args {
/**
* @size: [IN] Size of buffer object to create. This must be page size
* aligned.
*/
__u64 size;
/**
* @handle: [OUT] GEM handle of the new buffer object for use in
* userspace.
*/
__u32 handle;
/** @_padding_c: Reserved. This field must be zeroed. */
__u32 _padding_c;
/**
* @flags: [IN] Options which will affect the behaviour of this
* creation operation and future mapping operations on the created
* object. This field must be a valid combination of ``DRM_PVR_BO_*``
* values, with all bits marked as reserved set to zero.
*/
__u64 flags;
};
/**
* DOC: PowerVR IOCTL GET_BO_MMAP_OFFSET interface
*/
/**
* struct drm_pvr_ioctl_get_bo_mmap_offset_args - Arguments for
* %DRM_IOCTL_PVR_GET_BO_MMAP_OFFSET
*
* Like other DRM drivers, the "mmap" IOCTL doesn't actually map any memory.
* Instead, it allocates a fake offset which refers to the specified buffer
* object. This offset can be used with a real mmap call on the DRM device
* itself.
*/
struct drm_pvr_ioctl_get_bo_mmap_offset_args {
/** @handle: [IN] GEM handle of the buffer object to be mapped. */
__u32 handle;
/** @_padding_4: Reserved. This field must be zeroed. */
__u32 _padding_4;
/** @offset: [OUT] Fake offset to use in the real mmap call. */
__u64 offset;
};
/**
* DOC: PowerVR IOCTL CREATE_VM_CONTEXT and DESTROY_VM_CONTEXT interfaces
*/
/**
* struct drm_pvr_ioctl_create_vm_context_args - Arguments for
* %DRM_IOCTL_PVR_CREATE_VM_CONTEXT
*/
struct drm_pvr_ioctl_create_vm_context_args {
/** @handle: [OUT] Handle for new VM context. */
__u32 handle;
/** @_padding_4: Reserved. This field must be zeroed. */
__u32 _padding_4;
};
/**
* struct drm_pvr_ioctl_destroy_vm_context_args - Arguments for
* %DRM_IOCTL_PVR_DESTROY_VM_CONTEXT
*/
struct drm_pvr_ioctl_destroy_vm_context_args {
/**
* @handle: [IN] Handle for VM context to be destroyed.
*/
__u32 handle;
/** @_padding_4: Reserved. This field must be zeroed. */
__u32 _padding_4;
};
/**
* DOC: PowerVR IOCTL VM_MAP and VM_UNMAP interfaces
*
* The VM UAPI allows userspace to create buffer object mappings in GPU virtual address space.
*
* The client is responsible for managing GPU address space. It should allocate mappings within
* the heaps returned by %DRM_PVR_DEV_QUERY_HEAP_INFO_GET.
*
* %DRM_IOCTL_PVR_VM_MAP creates a new mapping. The client provides the target virtual address for
* the mapping. Size and offset within the mapped buffer object can be specified, so the client can
* partially map a buffer.
*
* %DRM_IOCTL_PVR_VM_UNMAP removes a mapping. The entire mapping will be removed from GPU address
* space only if the size of the mapping matches that known to the driver.
*/
/**
* struct drm_pvr_ioctl_vm_map_args - Arguments for %DRM_IOCTL_PVR_VM_MAP.
*/
struct drm_pvr_ioctl_vm_map_args {
/**
* @vm_context_handle: [IN] Handle for VM context for this mapping to
* exist in.
*/
__u32 vm_context_handle;
/** @flags: [IN] Flags which affect this mapping. Currently always 0. */
__u32 flags;
/**
* @device_addr: [IN] Requested device-virtual address for the mapping.
* This must be non-zero and aligned to the device page size for the
* heap containing the requested address. It is an error to specify an
* address which is not contained within one of the heaps returned by
* %DRM_PVR_DEV_QUERY_HEAP_INFO_GET.
*/
__u64 device_addr;
/**
* @handle: [IN] Handle of the target buffer object. This must be a
* valid handle returned by %DRM_IOCTL_PVR_CREATE_BO.
*/
__u32 handle;
/** @_padding_14: Reserved. This field must be zeroed. */
__u32 _padding_14;
/**
* @offset: [IN] Offset into the target bo from which to begin the
* mapping.
*/
__u64 offset;
/**
* @size: [IN] Size of the requested mapping. Must be aligned to
* the device page size for the heap containing the requested address,
* as well as the host page size. When added to @device_addr, the
* result must not overflow the heap which contains @device_addr (i.e.
* the range specified by @device_addr and @size must be completely
* contained within a single heap specified by
* %DRM_PVR_DEV_QUERY_HEAP_INFO_GET).
*/
__u64 size;
};
/**
* struct drm_pvr_ioctl_vm_unmap_args - Arguments for %DRM_IOCTL_PVR_VM_UNMAP.
*/
struct drm_pvr_ioctl_vm_unmap_args {
/**
* @vm_context_handle: [IN] Handle for VM context that this mapping
* exists in.
*/
__u32 vm_context_handle;
/** @_padding_4: Reserved. This field must be zeroed. */
__u32 _padding_4;
/**
* @device_addr: [IN] Device-virtual address at the start of the target
* mapping. This must be non-zero.
*/
__u64 device_addr;
/**
* @size: Size in bytes of the target mapping. This must be non-zero.
*/
__u64 size;
};
/**
* DOC: PowerVR IOCTL CREATE_CONTEXT and DESTROY_CONTEXT interfaces
*/
/**
* enum drm_pvr_ctx_priority - Arguments for
* &drm_pvr_ioctl_create_context_args.priority
*/
enum drm_pvr_ctx_priority {
/** @DRM_PVR_CTX_PRIORITY_LOW: Priority below normal. */
DRM_PVR_CTX_PRIORITY_LOW = -512,
/** @DRM_PVR_CTX_PRIORITY_NORMAL: Normal priority. */
DRM_PVR_CTX_PRIORITY_NORMAL = 0,
/**
* @DRM_PVR_CTX_PRIORITY_HIGH: Priority above normal.
* Note this requires ``CAP_SYS_NICE`` or ``DRM_MASTER``.
*/
DRM_PVR_CTX_PRIORITY_HIGH = 512,
};
/**
* enum drm_pvr_ctx_type - Arguments for
* &struct drm_pvr_ioctl_create_context_args.type
*/
enum drm_pvr_ctx_type {
/**
* @DRM_PVR_CTX_TYPE_RENDER: Render context.
*/
DRM_PVR_CTX_TYPE_RENDER = 0,
/**
* @DRM_PVR_CTX_TYPE_COMPUTE: Compute context.
*/
DRM_PVR_CTX_TYPE_COMPUTE,
/**
* @DRM_PVR_CTX_TYPE_TRANSFER_FRAG: Transfer context for fragment data
* master.
*/
DRM_PVR_CTX_TYPE_TRANSFER_FRAG,
};
/**
* struct drm_pvr_ioctl_create_context_args - Arguments for
* %DRM_IOCTL_PVR_CREATE_CONTEXT
*/
struct drm_pvr_ioctl_create_context_args {
/**
* @type: [IN] Type of context to create.
*
* This must be one of the values defined by &enum drm_pvr_ctx_type.
*/
__u32 type;
/** @flags: [IN] Flags for context. */
__u32 flags;
/**
* @priority: [IN] Priority of new context.
*
* This must be one of the values defined by &enum drm_pvr_ctx_priority.
*/
__s32 priority;
/** @handle: [OUT] Handle for new context. */
__u32 handle;
/**
* @static_context_state: [IN] Pointer to static context state stream.
*/
__u64 static_context_state;
/**
* @static_context_state_len: [IN] Length of static context state, in bytes.
*/
__u32 static_context_state_len;
/**
* @vm_context_handle: [IN] Handle for VM context that this context is
* associated with.
*/
__u32 vm_context_handle;
/**
* @callstack_addr: [IN] Address for initial call stack pointer. Only valid
* if @type is %DRM_PVR_CTX_TYPE_RENDER, otherwise must be 0.
*/
__u64 callstack_addr;
};
/**
* struct drm_pvr_ioctl_destroy_context_args - Arguments for
* %DRM_IOCTL_PVR_DESTROY_CONTEXT
*/
struct drm_pvr_ioctl_destroy_context_args {
/**
* @handle: [IN] Handle for context to be destroyed.
*/
__u32 handle;
/** @_padding_4: Reserved. This field must be zeroed. */
__u32 _padding_4;
};
/**
* DOC: PowerVR IOCTL CREATE_FREE_LIST and DESTROY_FREE_LIST interfaces
*/
/**
* struct drm_pvr_ioctl_create_free_list_args - Arguments for
* %DRM_IOCTL_PVR_CREATE_FREE_LIST
*
* Free list arguments have the following constraints :
*
* - @max_num_pages must be greater than zero.
* - @grow_threshold must be between 0 and 100.
* - @grow_num_pages must be less than or equal to &max_num_pages.
* - @initial_num_pages, @max_num_pages and @grow_num_pages must be multiples
* of 4.
* - When &grow_num_pages is 0, @initial_num_pages must be equal to
* @max_num_pages.
* - When &grow_num_pages is non-zero, @initial_num_pages must be less than
* @max_num_pages.
*/
struct drm_pvr_ioctl_create_free_list_args {
/**
* @free_list_gpu_addr: [IN] Address of GPU mapping of buffer object
* containing memory to be used by free list.
*
* The mapped region of the buffer object must be at least
* @max_num_pages * ``sizeof(__u32)``.
*
* The buffer object must have been created with
* %DRM_PVR_BO_DEVICE_PM_FW_PROTECT set and
* %DRM_PVR_BO_CPU_ALLOW_USERSPACE_ACCESS not set.
*/
__u64 free_list_gpu_addr;
/** @initial_num_pages: [IN] Pages initially allocated to free list. */
__u32 initial_num_pages;
/** @max_num_pages: [IN] Maximum number of pages in free list. */
__u32 max_num_pages;
/** @grow_num_pages: [IN] Pages to grow free list by per request. */
__u32 grow_num_pages;
/**
* @grow_threshold: [IN] Percentage of FL memory used that should
* trigger a new grow request.
*/
__u32 grow_threshold;
/**
* @vm_context_handle: [IN] Handle for VM context that the free list buffer
* object is mapped in.
*/
__u32 vm_context_handle;
/**
* @handle: [OUT] Handle for created free list.
*/
__u32 handle;
};
/**
* struct drm_pvr_ioctl_destroy_free_list_args - Arguments for
* %DRM_IOCTL_PVR_DESTROY_FREE_LIST
*/
struct drm_pvr_ioctl_destroy_free_list_args {
/**
* @handle: [IN] Handle for free list to be destroyed.
*/
__u32 handle;
/** @_padding_4: Reserved. This field must be zeroed. */
__u32 _padding_4;
};
/**
* DOC: PowerVR IOCTL CREATE_HWRT_DATASET and DESTROY_HWRT_DATASET interfaces
*/
/**
* struct drm_pvr_create_hwrt_geom_data_args - Geometry data arguments used for
* &struct drm_pvr_ioctl_create_hwrt_dataset_args.geom_data_args.
*/
struct drm_pvr_create_hwrt_geom_data_args {
/** @tpc_dev_addr: [IN] Tail pointer cache GPU virtual address. */
__u64 tpc_dev_addr;
/** @tpc_size: [IN] Size of TPC, in bytes. */
__u32 tpc_size;
/** @tpc_stride: [IN] Stride between layers in TPC, in pages */
__u32 tpc_stride;
/** @vheap_table_dev_addr: [IN] VHEAP table GPU virtual address. */
__u64 vheap_table_dev_addr;
/** @rtc_dev_addr: [IN] Render Target Cache virtual address. */
__u64 rtc_dev_addr;
};
/**
* struct drm_pvr_create_hwrt_rt_data_args - Render target arguments used for
* &struct drm_pvr_ioctl_create_hwrt_dataset_args.rt_data_args.
*/
struct drm_pvr_create_hwrt_rt_data_args {
/** @pm_mlist_dev_addr: [IN] PM MLIST GPU virtual address. */
__u64 pm_mlist_dev_addr;
/** @macrotile_array_dev_addr: [IN] Macrotile array GPU virtual address. */
__u64 macrotile_array_dev_addr;
/** @region_header_dev_addr: [IN] Region header array GPU virtual address. */
__u64 region_header_dev_addr;
};
#define PVR_DRM_HWRT_FREE_LIST_LOCAL 0
#define PVR_DRM_HWRT_FREE_LIST_GLOBAL 1U
/**
* struct drm_pvr_ioctl_create_hwrt_dataset_args - Arguments for
* %DRM_IOCTL_PVR_CREATE_HWRT_DATASET
*/
struct drm_pvr_ioctl_create_hwrt_dataset_args {
/** @geom_data_args: [IN] Geometry data arguments. */
struct drm_pvr_create_hwrt_geom_data_args geom_data_args;
/**
* @rt_data_args: [IN] Array of render target arguments.
*
* Each entry in this array represents a render target in a double buffered
* setup.
*/
struct drm_pvr_create_hwrt_rt_data_args rt_data_args[2];
/**
* @free_list_handles: [IN] Array of free list handles.
*
* free_list_handles[PVR_DRM_HWRT_FREE_LIST_LOCAL] must have initial
* size of at least that reported by
* &drm_pvr_dev_query_runtime_info.free_list_min_pages.
*/
__u32 free_list_handles[2];
/** @width: [IN] Width in pixels. */
__u32 width;
/** @height: [IN] Height in pixels. */
__u32 height;
/** @samples: [IN] Number of samples. */
__u32 samples;
/** @layers: [IN] Number of layers. */
__u32 layers;
/** @isp_merge_lower_x: [IN] Lower X coefficient for triangle merging. */
__u32 isp_merge_lower_x;
/** @isp_merge_lower_y: [IN] Lower Y coefficient for triangle merging. */
__u32 isp_merge_lower_y;
/** @isp_merge_scale_x: [IN] Scale X coefficient for triangle merging. */
__u32 isp_merge_scale_x;
/** @isp_merge_scale_y: [IN] Scale Y coefficient for triangle merging. */
__u32 isp_merge_scale_y;
/** @isp_merge_upper_x: [IN] Upper X coefficient for triangle merging. */
__u32 isp_merge_upper_x;
/** @isp_merge_upper_y: [IN] Upper Y coefficient for triangle merging. */
__u32 isp_merge_upper_y;
/**
* @region_header_size: [IN] Size of region header array. This common field is used by
* both render targets in this data set.
*
* The units for this field differ depending on what version of the simple internal
* parameter format the device uses. If format 2 is in use then this is interpreted as the
* number of region headers. For other formats it is interpreted as the size in dwords.
*/
__u32 region_header_size;
/**
* @handle: [OUT] Handle for created HWRT dataset.
*/
__u32 handle;
};
/**
* struct drm_pvr_ioctl_destroy_hwrt_dataset_args - Arguments for
* %DRM_IOCTL_PVR_DESTROY_HWRT_DATASET
*/
struct drm_pvr_ioctl_destroy_hwrt_dataset_args {
/**
* @handle: [IN] Handle for HWRT dataset to be destroyed.
*/
__u32 handle;
/** @_padding_4: Reserved. This field must be zeroed. */
__u32 _padding_4;
};
/**
* DOC: PowerVR IOCTL SUBMIT_JOBS interface
*/
/**
* DOC: Flags for the drm_pvr_sync_op object.
*
* .. c:macro:: DRM_PVR_SYNC_OP_HANDLE_TYPE_MASK
*
* Handle type mask for the drm_pvr_sync_op::flags field.
*
* .. c:macro:: DRM_PVR_SYNC_OP_FLAG_HANDLE_TYPE_SYNCOBJ
*
* Indicates the handle passed in drm_pvr_sync_op::handle is a syncobj handle.
* This is the default type.
*
* .. c:macro:: DRM_PVR_SYNC_OP_FLAG_HANDLE_TYPE_TIMELINE_SYNCOBJ
*
* Indicates the handle passed in drm_pvr_sync_op::handle is a timeline syncobj handle.
*
* .. c:macro:: DRM_PVR_SYNC_OP_FLAG_SIGNAL
*
* Signal operation requested. The out-fence bound to the job will be attached to
* the syncobj whose handle is passed in drm_pvr_sync_op::handle.
*
* .. c:macro:: DRM_PVR_SYNC_OP_FLAG_WAIT
*
* Wait operation requested. The job will wait for this particular syncobj or syncobj
* point to be signaled before being started.
* This is the default operation.
*/
#define DRM_PVR_SYNC_OP_FLAG_HANDLE_TYPE_MASK 0xf
#define DRM_PVR_SYNC_OP_FLAG_HANDLE_TYPE_SYNCOBJ 0
#define DRM_PVR_SYNC_OP_FLAG_HANDLE_TYPE_TIMELINE_SYNCOBJ 1
#define DRM_PVR_SYNC_OP_FLAG_SIGNAL _BITULL(31)
#define DRM_PVR_SYNC_OP_FLAG_WAIT 0
#define DRM_PVR_SYNC_OP_FLAGS_MASK (DRM_PVR_SYNC_OP_FLAG_HANDLE_TYPE_MASK | \
DRM_PVR_SYNC_OP_FLAG_SIGNAL)
/**
* struct drm_pvr_sync_op - Object describing a sync operation
*/
struct drm_pvr_sync_op {
/** @handle: Handle of sync object. */
__u32 handle;
/** @flags: Combination of ``DRM_PVR_SYNC_OP_FLAG_`` flags. */
__u32 flags;
/** @value: Timeline value for this drm_syncobj. MBZ for a binary syncobj. */
__u64 value;
};
/**
* DOC: Flags for SUBMIT_JOB ioctl geometry command.
*
* .. c:macro:: DRM_PVR_SUBMIT_JOB_GEOM_CMD_FIRST
*
* Indicates if this the first command to be issued for a render.
*
* .. c:macro:: DRM_PVR_SUBMIT_JOB_GEOM_CMD_LAST
*
* Indicates if this the last command to be issued for a render.
*
* .. c:macro:: DRM_PVR_SUBMIT_JOB_GEOM_CMD_SINGLE_CORE
*
* Forces to use single core in a multi core device.
*
* .. c:macro:: DRM_PVR_SUBMIT_JOB_GEOM_CMD_FLAGS_MASK
*
* Logical OR of all the geometry cmd flags.
*/
#define DRM_PVR_SUBMIT_JOB_GEOM_CMD_FIRST _BITULL(0)
#define DRM_PVR_SUBMIT_JOB_GEOM_CMD_LAST _BITULL(1)
#define DRM_PVR_SUBMIT_JOB_GEOM_CMD_SINGLE_CORE _BITULL(2)
#define DRM_PVR_SUBMIT_JOB_GEOM_CMD_FLAGS_MASK \
(DRM_PVR_SUBMIT_JOB_GEOM_CMD_FIRST | \
DRM_PVR_SUBMIT_JOB_GEOM_CMD_LAST | \
DRM_PVR_SUBMIT_JOB_GEOM_CMD_SINGLE_CORE)
/**
* DOC: Flags for SUBMIT_JOB ioctl fragment command.
*
* .. c:macro:: DRM_PVR_SUBMIT_JOB_FRAG_CMD_SINGLE_CORE
*
* Use single core in a multi core setup.
*
* .. c:macro:: DRM_PVR_SUBMIT_JOB_FRAG_CMD_DEPTHBUFFER
*
* Indicates whether a depth buffer is present.
*
* .. c:macro:: DRM_PVR_SUBMIT_JOB_FRAG_CMD_STENCILBUFFER
*
* Indicates whether a stencil buffer is present.
*
* .. c:macro:: DRM_PVR_SUBMIT_JOB_FRAG_CMD_PREVENT_CDM_OVERLAP
*
* Disallow compute overlapped with this render.
*
* .. c:macro:: DRM_PVR_SUBMIT_JOB_FRAG_CMD_GET_VIS_RESULTS
*
* Indicates whether this render produces visibility results.
*
* .. c:macro:: DRM_PVR_SUBMIT_JOB_FRAG_CMD_SCRATCHBUFFER
*
* Indicates whether partial renders write to a scratch buffer instead of
* the final surface. It also forces the full screen copy expected to be
* present on the last render after all partial renders have completed.
*
* .. c:macro:: DRM_PVR_SUBMIT_JOB_FRAG_CMD_DISABLE_PIXELMERGE
*
* Disable pixel merging for this render.
*
* .. c:macro:: DRM_PVR_SUBMIT_JOB_FRAG_CMD_FLAGS_MASK
*
* Logical OR of all the fragment cmd flags.
*/
#define DRM_PVR_SUBMIT_JOB_FRAG_CMD_SINGLE_CORE _BITULL(0)
#define DRM_PVR_SUBMIT_JOB_FRAG_CMD_DEPTHBUFFER _BITULL(1)
#define DRM_PVR_SUBMIT_JOB_FRAG_CMD_STENCILBUFFER _BITULL(2)
#define DRM_PVR_SUBMIT_JOB_FRAG_CMD_PREVENT_CDM_OVERLAP _BITULL(3)
#define DRM_PVR_SUBMIT_JOB_FRAG_CMD_SCRATCHBUFFER _BITULL(4)
#define DRM_PVR_SUBMIT_JOB_FRAG_CMD_GET_VIS_RESULTS _BITULL(5)
#define DRM_PVR_SUBMIT_JOB_FRAG_CMD_PARTIAL_RENDER _BITULL(6)
#define DRM_PVR_SUBMIT_JOB_FRAG_CMD_DISABLE_PIXELMERGE _BITULL(7)
#define DRM_PVR_SUBMIT_JOB_FRAG_CMD_FLAGS_MASK \
(DRM_PVR_SUBMIT_JOB_FRAG_CMD_SINGLE_CORE | \
DRM_PVR_SUBMIT_JOB_FRAG_CMD_DEPTHBUFFER | \
DRM_PVR_SUBMIT_JOB_FRAG_CMD_STENCILBUFFER | \
DRM_PVR_SUBMIT_JOB_FRAG_CMD_PREVENT_CDM_OVERLAP | \
DRM_PVR_SUBMIT_JOB_FRAG_CMD_SCRATCHBUFFER | \
DRM_PVR_SUBMIT_JOB_FRAG_CMD_GET_VIS_RESULTS | \
DRM_PVR_SUBMIT_JOB_FRAG_CMD_PARTIAL_RENDER | \
DRM_PVR_SUBMIT_JOB_FRAG_CMD_DISABLE_PIXELMERGE)
/**
* DOC: Flags for SUBMIT_JOB ioctl compute command.
*
* .. c:macro:: DRM_PVR_SUBMIT_JOB_COMPUTE_CMD_PREVENT_ALL_OVERLAP
*
* Disallow other jobs overlapped with this compute.
*
* .. c:macro:: DRM_PVR_SUBMIT_JOB_COMPUTE_CMD_SINGLE_CORE
*
* Forces to use single core in a multi core device.
*
* .. c:macro:: DRM_PVR_SUBMIT_JOB_COMPUTE_CMD_FLAGS_MASK
*
* Logical OR of all the compute cmd flags.
*/
#define DRM_PVR_SUBMIT_JOB_COMPUTE_CMD_PREVENT_ALL_OVERLAP _BITULL(0)
#define DRM_PVR_SUBMIT_JOB_COMPUTE_CMD_SINGLE_CORE _BITULL(1)
#define DRM_PVR_SUBMIT_JOB_COMPUTE_CMD_FLAGS_MASK \
(DRM_PVR_SUBMIT_JOB_COMPUTE_CMD_PREVENT_ALL_OVERLAP | \
DRM_PVR_SUBMIT_JOB_COMPUTE_CMD_SINGLE_CORE)
/**
* DOC: Flags for SUBMIT_JOB ioctl transfer command.
*
* .. c:macro:: DRM_PVR_SUBMIT_JOB_TRANSFER_CMD_SINGLE_CORE
*
* Forces job to use a single core in a multi core device.
*
* .. c:macro:: DRM_PVR_SUBMIT_JOB_TRANSFER_CMD_FLAGS_MASK
*
* Logical OR of all the transfer cmd flags.
*/
#define DRM_PVR_SUBMIT_JOB_TRANSFER_CMD_SINGLE_CORE _BITULL(0)
#define DRM_PVR_SUBMIT_JOB_TRANSFER_CMD_FLAGS_MASK \
DRM_PVR_SUBMIT_JOB_TRANSFER_CMD_SINGLE_CORE
/**
* enum drm_pvr_job_type - Arguments for &struct drm_pvr_job.job_type
*/
enum drm_pvr_job_type {
/** @DRM_PVR_JOB_TYPE_GEOMETRY: Job type is geometry. */
DRM_PVR_JOB_TYPE_GEOMETRY = 0,
/** @DRM_PVR_JOB_TYPE_FRAGMENT: Job type is fragment. */
DRM_PVR_JOB_TYPE_FRAGMENT,
/** @DRM_PVR_JOB_TYPE_COMPUTE: Job type is compute. */
DRM_PVR_JOB_TYPE_COMPUTE,
/** @DRM_PVR_JOB_TYPE_TRANSFER_FRAG: Job type is a fragment transfer. */
DRM_PVR_JOB_TYPE_TRANSFER_FRAG,
};
/**
* struct drm_pvr_hwrt_data_ref - Reference HWRT data
*/
struct drm_pvr_hwrt_data_ref {
/** @set_handle: HWRT data set handle. */
__u32 set_handle;
/** @data_index: Index of the HWRT data inside the data set. */
__u32 data_index;
};
/**
* struct drm_pvr_job - Job arguments passed to the %DRM_IOCTL_PVR_SUBMIT_JOBS ioctl
*/
struct drm_pvr_job {
/**
* @type: [IN] Type of job being submitted
*
* This must be one of the values defined by &enum drm_pvr_job_type.
*/
__u32 type;
/**
* @context_handle: [IN] Context handle.
*
* When @job_type is %DRM_PVR_JOB_TYPE_RENDER, %DRM_PVR_JOB_TYPE_COMPUTE or
* %DRM_PVR_JOB_TYPE_TRANSFER_FRAG, this must be a valid handle returned by
* %DRM_IOCTL_PVR_CREATE_CONTEXT. The type of context must be compatible
* with the type of job being submitted.
*
* When @job_type is %DRM_PVR_JOB_TYPE_NULL, this must be zero.
*/
__u32 context_handle;
/**
* @flags: [IN] Flags for command.
*
* Those are job-dependent. See all ``DRM_PVR_SUBMIT_JOB_*``.
*/
__u32 flags;
/**
* @cmd_stream_len: [IN] Length of command stream, in bytes.
*/
__u32 cmd_stream_len;
/**
* @cmd_stream: [IN] Pointer to command stream for command.
*
* The command stream must be u64-aligned.
*/
__u64 cmd_stream;
/** @sync_ops: [IN] Fragment sync operations. */
struct drm_pvr_obj_array sync_ops;
/**
* @hwrt: [IN] HWRT data used by render jobs (geometry or fragment).
*
* Must be zero for non-render jobs.
*/
struct drm_pvr_hwrt_data_ref hwrt;
};
/**
* struct drm_pvr_ioctl_submit_jobs_args - Arguments for %DRM_IOCTL_PVR_SUBMIT_JOB
*
* If the syscall returns an error it is important to check the value of
* @jobs.count. This indicates the index into @jobs.array where the
* error occurred.
*/
struct drm_pvr_ioctl_submit_jobs_args {
/** @jobs: [IN] Array of jobs to submit. */
struct drm_pvr_obj_array jobs;
};
#if defined(__cplusplus)
}
#endif
#endif /* PVR_DRM_UAPI_H */
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