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pvr_drm.h
/* 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 */