[PATCH v7 04/20] drm/imagination/uapi: Add PowerVR driver UAPI
From: Sarah Walker
Date: Tue Oct 10 2023 - 09:41:05 EST
Add the UAPI implementation for the PowerVR driver.
Changes from v6
- Add padding to struct drm_pvr_dev_query_gpu_info
- Improve BYPASS_CACHE flag documentation
- Add SUBMIT_JOB_FRAG_CMD_DISABLE_PIXELMERGE flag
Changes from v4:
- Remove CREATE_ZEROED flag for BO creation (all buffers are now zeroed)
Co-developed-by: Frank Binns <frank.binns@xxxxxxxxxx>
Signed-off-by: Frank Binns <frank.binns@xxxxxxxxxx>
Co-developed-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>
Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>
Co-developed-by: Matt Coster <matt.coster@xxxxxxxxxx>
Signed-off-by: Matt Coster <matt.coster@xxxxxxxxxx>
Co-developed-by: Donald Robson <donald.robson@xxxxxxxxxx>
Signed-off-by: Donald Robson <donald.robson@xxxxxxxxxx>
Signed-off-by: Sarah Walker <sarah.walker@xxxxxxxxxx>
---
MAINTAINERS | 1 +
include/uapi/drm/pvr_drm.h | 1319 ++++++++++++++++++++++++++++++++++++
2 files changed, 1320 insertions(+)
create mode 100644 include/uapi/drm/pvr_drm.h
diff --git a/MAINTAINERS b/MAINTAINERS
index eea8e618746a..cfdc7ec02972 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10233,6 +10233,7 @@ M: Frank Binns <frank.binns@xxxxxxxxxx>
M: Donald Robson <donald.robson@xxxxxxxxxx>
S: Supported
F: Documentation/devicetree/bindings/gpu/img,powervr.yaml
+F: include/uapi/drm/pvr_drm.h
IMON SOUNDGRAPH USB IR RECEIVER
M: Sean Young <sean@xxxxxxxx>
diff --git a/include/uapi/drm/pvr_drm.h b/include/uapi/drm/pvr_drm.h
new file mode 100644
index 000000000000..ca021dae7de7
--- /dev/null
+++ b/include/uapi/drm/pvr_drm.h
@@ -0,0 +1,1319 @@
+/* SPDX-License-Identifier: (GPL-2.0 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! */
+};
+
+/**
+ * DOC: Flags for DRM_PVR_DEV_QUERY_HEAP_INFO_GET.
+ *
+ * .. c:macro:: DRM_PVR_HEAP_FLAG_STATIC_CARVEOUT_AT_END
+ *
+ * The static data area is at the end of the heap memory area, rather than
+ * at the beginning.
+ * The base address will be:
+ * drm_pvr_heap::base +
+ * (drm_pvr_heap::size - drm_pvr_heap::static_data_carveout_size)
+ */
+#define DRM_PVR_HEAP_FLAG_STATIC_CARVEOUT_AT_END _BITUL(0)
+
+/**
+ * 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. See &enum drm_pvr_heap_flags. */
+ __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 USC program.
+ *
+ * The End of Tile task runs at completion of a tile, 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 static data
+ * carveout.
+ */
+ __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
+ *
+ * The &struct drm_pvr_ioctl_create_bo_args.flags field is 64 bits wide and consists
+ * of three groups of flags: creation, device mapping and CPU mapping.
+ *
+ * We use "device" to refer to the GPU here because of the ambiguity between
+ * CPU and GPU in some fonts.
+ *
+ * Creation options
+ * These use the prefix ``DRM_PVR_BO_CREATE_``.
+ *
+ * Device mapping options
+ * These use the prefix ``DRM_PVR_BO_DEVICE_``.
+ *
+ * :BYPASS_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.
+ * :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
+ * CPU_ALLOW_USERSPACE_ACCESS.
+ *
+ * CPU mapping options
+ * These use the prefix ``DRM_PVR_BO_CPU_``.
+ *
+ * :ALLOW_USERSPACE_ACCESS: Allow userspace to map and access the contents
+ * of this memory. It is not valid to specify this flag with
+ * DEVICE_PM_FW_PROTECT.
+ */
+#define DRM_PVR_BO_DEVICE_BYPASS_CACHE _BITULL(0)
+#define DRM_PVR_BO_DEVICE_PM_FW_PROTECT _BITULL(1)
+#define DRM_PVR_BO_CPU_ALLOW_USERSPACE_ACCESS _BITULL(2)
+/* Bits 3..63 are reserved. */
+
+#define DRM_PVR_BO_FLAGS_MASK (DRM_PVR_BO_DEVICE_BYPASS_CACHE | DRM_PVR_BO_DEVICE_PM_FW_PROTECT | \
+ DRM_PVR_BO_CPU_ALLOW_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/OUT] Unaligned size of buffer object to create. On
+ * return, this will be populated with the actual aligned size of the
+ * new buffer.
+ */
+ __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. For this reason only the start address is provided by the client.
+ */
+
+/**
+ * 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. Use &struct
+ * drm_pvr_ioctl_create_render_context_args for context creation arguments.
+ */
+ DRM_PVR_CTX_TYPE_RENDER = 0,
+
+ /**
+ * @DRM_PVR_CTX_TYPE_COMPUTE: Compute context. Use &struct
+ * drm_pvr_ioctl_create_compute_context_args for context creation arguments.
+ */
+ DRM_PVR_CTX_TYPE_COMPUTE,
+
+ /**
+ * @DRM_PVR_CTX_TYPE_TRANSFER_FRAG: Transfer context for fragment data masters. Use
+ * &struct drm_pvr_ioctl_create_transfer_context_args for context creation arguments.
+ */
+ 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;
+};
+
+/**
+ * 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. */
+ struct drm_pvr_create_hwrt_rt_data_args rt_data_args[2];
+
+ /**
+ * @free_list_handles: [IN] Array of free list handles.
+ *
+ * free_list_handles[0] 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 */
--
2.42.0