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IABSD.fr/xenocara/lib/mesa/include/drm-uapi/v3d_drm.h

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  • Author : jsg
    Date : 2025-06-05 11:23:11
    Hash : 67d6f117
    Message : Import Mesa 25.0.7

  • lib/mesa/include/drm-uapi/v3d_drm.h
  • /*
     * Copyright © 2014-2018 Broadcom
     *
     * Permission is hereby granted, free of charge, to any person obtaining a
     * copy of this software and associated documentation files (the "Software"),
     * to deal in the Software without restriction, including without limitation
     * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     * and/or sell copies of the Software, and to permit persons to whom the
     * Software is furnished to do so, subject to the following conditions:
     *
     * The above copyright notice and this permission notice (including the next
     * paragraph) shall be included in all copies or substantial portions of the
     * Software.
     *
     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     * IN THE SOFTWARE.
     */
    
    #ifndef _V3D_DRM_H_
    #define _V3D_DRM_H_
    
    #include "drm.h"
    
    #if defined(__cplusplus)
    extern "C" {
    #endif
    
    #define DRM_V3D_SUBMIT_CL                         0x00
    #define DRM_V3D_WAIT_BO                           0x01
    #define DRM_V3D_CREATE_BO                         0x02
    #define DRM_V3D_MMAP_BO                           0x03
    #define DRM_V3D_GET_PARAM                         0x04
    #define DRM_V3D_GET_BO_OFFSET                     0x05
    #define DRM_V3D_SUBMIT_TFU                        0x06
    #define DRM_V3D_SUBMIT_CSD                        0x07
    #define DRM_V3D_PERFMON_CREATE                    0x08
    #define DRM_V3D_PERFMON_DESTROY                   0x09
    #define DRM_V3D_PERFMON_GET_VALUES                0x0a
    #define DRM_V3D_SUBMIT_CPU                        0x0b
    #define DRM_V3D_PERFMON_GET_COUNTER               0x0c
    #define DRM_V3D_PERFMON_SET_GLOBAL                0x0d
    
    #define DRM_IOCTL_V3D_SUBMIT_CL           DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_SUBMIT_CL, struct drm_v3d_submit_cl)
    #define DRM_IOCTL_V3D_WAIT_BO             DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_WAIT_BO, struct drm_v3d_wait_bo)
    #define DRM_IOCTL_V3D_CREATE_BO           DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_CREATE_BO, struct drm_v3d_create_bo)
    #define DRM_IOCTL_V3D_MMAP_BO             DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_MMAP_BO, struct drm_v3d_mmap_bo)
    #define DRM_IOCTL_V3D_GET_PARAM           DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_GET_PARAM, struct drm_v3d_get_param)
    #define DRM_IOCTL_V3D_GET_BO_OFFSET       DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_GET_BO_OFFSET, struct drm_v3d_get_bo_offset)
    #define DRM_IOCTL_V3D_SUBMIT_TFU          DRM_IOW(DRM_COMMAND_BASE + DRM_V3D_SUBMIT_TFU, struct drm_v3d_submit_tfu)
    #define DRM_IOCTL_V3D_SUBMIT_CSD          DRM_IOW(DRM_COMMAND_BASE + DRM_V3D_SUBMIT_CSD, struct drm_v3d_submit_csd)
    #define DRM_IOCTL_V3D_PERFMON_CREATE      DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_PERFMON_CREATE, \
    						   struct drm_v3d_perfmon_create)
    #define DRM_IOCTL_V3D_PERFMON_DESTROY     DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_PERFMON_DESTROY, \
    						   struct drm_v3d_perfmon_destroy)
    #define DRM_IOCTL_V3D_PERFMON_GET_VALUES  DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_PERFMON_GET_VALUES, \
    						   struct drm_v3d_perfmon_get_values)
    #define DRM_IOCTL_V3D_SUBMIT_CPU          DRM_IOW(DRM_COMMAND_BASE + DRM_V3D_SUBMIT_CPU, struct drm_v3d_submit_cpu)
    #define DRM_IOCTL_V3D_PERFMON_GET_COUNTER DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_PERFMON_GET_COUNTER, \
    						   struct drm_v3d_perfmon_get_counter)
    #define DRM_IOCTL_V3D_PERFMON_SET_GLOBAL  DRM_IOW(DRM_COMMAND_BASE + DRM_V3D_PERFMON_SET_GLOBAL, \
    						   struct drm_v3d_perfmon_set_global)
    
    #define DRM_V3D_SUBMIT_CL_FLUSH_CACHE             0x01
    #define DRM_V3D_SUBMIT_EXTENSION		  0x02
    
    /* struct drm_v3d_extension - ioctl extensions
     *
     * Linked-list of generic extensions where the id identify which struct is
     * pointed by ext_data. Therefore, DRM_V3D_EXT_ID_* is used on id to identify
     * the extension type.
     */
    struct drm_v3d_extension {
    	__u64 next;
    	__u32 id;
    #define DRM_V3D_EXT_ID_MULTI_SYNC			0x01
    #define DRM_V3D_EXT_ID_CPU_INDIRECT_CSD		0x02
    #define DRM_V3D_EXT_ID_CPU_TIMESTAMP_QUERY		0x03
    #define DRM_V3D_EXT_ID_CPU_RESET_TIMESTAMP_QUERY	0x04
    #define DRM_V3D_EXT_ID_CPU_COPY_TIMESTAMP_QUERY	0x05
    #define DRM_V3D_EXT_ID_CPU_RESET_PERFORMANCE_QUERY	0x06
    #define DRM_V3D_EXT_ID_CPU_COPY_PERFORMANCE_QUERY	0x07
    	__u32 flags; /* mbz */
    };
    
    /* struct drm_v3d_sem - wait/signal semaphore
     *
     * If binary semaphore, it only takes syncobj handle and ignores flags and
     * point fields. Point is defined for timeline syncobj feature.
     */
    struct drm_v3d_sem {
    	__u32 handle; /* syncobj */
    	/* rsv below, for future uses */
    	__u32 flags;
    	__u64 point;  /* for timeline sem support */
    	__u64 mbz[2]; /* must be zero, rsv */
    };
    
    /* Enum for each of the V3D queues. */
    enum v3d_queue {
    	V3D_BIN,
    	V3D_RENDER,
    	V3D_TFU,
    	V3D_CSD,
    	V3D_CACHE_CLEAN,
    	V3D_CPU,
    };
    
    /**
     * struct drm_v3d_multi_sync - ioctl extension to add support multiples
     * syncobjs for commands submission.
     *
     * When an extension of DRM_V3D_EXT_ID_MULTI_SYNC id is defined, it points to
     * this extension to define wait and signal dependencies, instead of single
     * in/out sync entries on submitting commands. The field flags is used to
     * determine the stage to set wait dependencies.
     */
    struct drm_v3d_multi_sync {
    	struct drm_v3d_extension base;
    	/* Array of wait and signal semaphores */
    	__u64 in_syncs;
    	__u64 out_syncs;
    
    	/* Number of entries */
    	__u32 in_sync_count;
    	__u32 out_sync_count;
    
    	/* set the stage (v3d_queue) to sync */
    	__u32 wait_stage;
    
    	__u32 pad; /* mbz */
    };
    
    /**
     * struct drm_v3d_submit_cl - ioctl argument for submitting commands to the 3D
     * engine.
     *
     * This asks the kernel to have the GPU execute an optional binner
     * command list, and a render command list.
     *
     * The L1T, slice, L2C, L2T, and GCA caches will be flushed before
     * each CL executes.  The VCD cache should be flushed (if necessary)
     * by the submitted CLs.  The TLB writes are guaranteed to have been
     * flushed by the time the render done IRQ happens, which is the
     * trigger for out_sync.  Any dirtying of cachelines by the job (only
     * possible using TMU writes) must be flushed by the caller using the
     * DRM_V3D_SUBMIT_CL_FLUSH_CACHE_FLAG flag.
     */
    struct drm_v3d_submit_cl {
    	/* Pointer to the binner command list.
    	 *
    	 * This is the first set of commands executed, which runs the
    	 * coordinate shader to determine where primitives land on the screen,
    	 * then writes out the state updates and draw calls necessary per tile
    	 * to the tile allocation BO.
    	 *
    	 * This BCL will block on any previous BCL submitted on the
    	 * same FD, but not on any RCL or BCLs submitted by other
    	 * clients -- that is left up to the submitter to control
    	 * using in_sync_bcl if necessary.
    	 */
    	__u32 bcl_start;
    
    	/** End address of the BCL (first byte after the BCL) */
    	__u32 bcl_end;
    
    	/* Offset of the render command list.
    	 *
    	 * This is the second set of commands executed, which will either
    	 * execute the tiles that have been set up by the BCL, or a fixed set
    	 * of tiles (in the case of RCL-only blits).
    	 *
    	 * This RCL will block on this submit's BCL, and any previous
    	 * RCL submitted on the same FD, but not on any RCL or BCLs
    	 * submitted by other clients -- that is left up to the
    	 * submitter to control using in_sync_rcl if necessary.
    	 */
    	__u32 rcl_start;
    
    	/** End address of the RCL (first byte after the RCL) */
    	__u32 rcl_end;
    
    	/** An optional sync object to wait on before starting the BCL. */
    	__u32 in_sync_bcl;
    	/** An optional sync object to wait on before starting the RCL. */
    	__u32 in_sync_rcl;
    	/** An optional sync object to place the completion fence in. */
    	__u32 out_sync;
    
    	/* Offset of the tile alloc memory
    	 *
    	 * This is optional on V3D 3.3 (where the CL can set the value) but
    	 * required on V3D 4.1.
    	 */
    	__u32 qma;
    
    	/** Size of the tile alloc memory. */
    	__u32 qms;
    
    	/** Offset of the tile state data array. */
    	__u32 qts;
    
    	/* Pointer to a u32 array of the BOs that are referenced by the job.
    	 */
    	__u64 bo_handles;
    
    	/* Number of BO handles passed in (size is that times 4). */
    	__u32 bo_handle_count;
    
    	/* DRM_V3D_SUBMIT_* properties */
    	__u32 flags;
    
    	/* ID of the perfmon to attach to this job. 0 means no perfmon. */
    	__u32 perfmon_id;
    
    	__u32 pad;
    
    	/* Pointer to an array of ioctl extensions*/
    	__u64 extensions;
    };
    
    /**
     * struct drm_v3d_wait_bo - ioctl argument for waiting for
     * completion of the last DRM_V3D_SUBMIT_CL on a BO.
     *
     * This is useful for cases where multiple processes might be
     * rendering to a BO and you want to wait for all rendering to be
     * completed.
     */
    struct drm_v3d_wait_bo {
    	__u32 handle;
    	__u32 pad;
    	__u64 timeout_ns;
    };
    
    /**
     * struct drm_v3d_create_bo - ioctl argument for creating V3D BOs.
     *
     * There are currently no values for the flags argument, but it may be
     * used in a future extension.
     */
    struct drm_v3d_create_bo {
    	__u32 size;
    	__u32 flags;
    	/** Returned GEM handle for the BO. */
    	__u32 handle;
    	/**
    	 * Returned offset for the BO in the V3D address space.  This offset
    	 * is private to the DRM fd and is valid for the lifetime of the GEM
    	 * handle.
    	 *
    	 * This offset value will always be nonzero, since various HW
    	 * units treat 0 specially.
    	 */
    	__u32 offset;
    };
    
    /**
     * struct drm_v3d_mmap_bo - ioctl argument for mapping V3D BOs.
     *
     * This doesn't actually perform an mmap.  Instead, it returns the
     * offset you need to use in an mmap on the DRM device node.  This
     * means that tools like valgrind end up knowing about the mapped
     * memory.
     *
     * There are currently no values for the flags argument, but it may be
     * used in a future extension.
     */
    struct drm_v3d_mmap_bo {
    	/** Handle for the object being mapped. */
    	__u32 handle;
    	__u32 flags;
    	/** offset into the drm node to use for subsequent mmap call. */
    	__u64 offset;
    };
    
    enum drm_v3d_param {
    	DRM_V3D_PARAM_V3D_UIFCFG,
    	DRM_V3D_PARAM_V3D_HUB_IDENT1,
    	DRM_V3D_PARAM_V3D_HUB_IDENT2,
    	DRM_V3D_PARAM_V3D_HUB_IDENT3,
    	DRM_V3D_PARAM_V3D_CORE0_IDENT0,
    	DRM_V3D_PARAM_V3D_CORE0_IDENT1,
    	DRM_V3D_PARAM_V3D_CORE0_IDENT2,
    	DRM_V3D_PARAM_SUPPORTS_TFU,
    	DRM_V3D_PARAM_SUPPORTS_CSD,
    	DRM_V3D_PARAM_SUPPORTS_CACHE_FLUSH,
    	DRM_V3D_PARAM_SUPPORTS_PERFMON,
    	DRM_V3D_PARAM_SUPPORTS_MULTISYNC_EXT,
    	DRM_V3D_PARAM_SUPPORTS_CPU_QUEUE,
    	DRM_V3D_PARAM_MAX_PERF_COUNTERS,
    	DRM_V3D_PARAM_SUPPORTS_SUPER_PAGES,
    };
    
    struct drm_v3d_get_param {
    	__u32 param;
    	__u32 pad;
    	__u64 value;
    };
    
    /**
     * Returns the offset for the BO in the V3D address space for this DRM fd.
     * This is the same value returned by drm_v3d_create_bo, if that was called
     * from this DRM fd.
     */
    struct drm_v3d_get_bo_offset {
    	__u32 handle;
    	__u32 offset;
    };
    
    struct drm_v3d_submit_tfu {
    	__u32 icfg;
    	__u32 iia;
    	__u32 iis;
    	__u32 ica;
    	__u32 iua;
    	__u32 ioa;
    	__u32 ios;
    	__u32 coef[4];
    	/* First handle is the output BO, following are other inputs.
    	 * 0 for unused.
    	 */
    	__u32 bo_handles[4];
    	/* sync object to block on before running the TFU job.  Each TFU
    	 * job will execute in the order submitted to its FD.  Synchronization
    	 * against rendering jobs requires using sync objects.
    	 */
    	__u32 in_sync;
    	/* Sync object to signal when the TFU job is done. */
    	__u32 out_sync;
    
    	__u32 flags;
    
    	/* Pointer to an array of ioctl extensions*/
    	__u64 extensions;
    
    	struct {
    		__u32 ioc;
    		__u32 pad;
    	} v71;
    };
    
    /* Submits a compute shader for dispatch.  This job will block on any
     * previous compute shaders submitted on this fd, and any other
     * synchronization must be performed with in_sync/out_sync.
     */
    struct drm_v3d_submit_csd {
    	__u32 cfg[7];
    	__u32 coef[4];
    
    	/* Pointer to a u32 array of the BOs that are referenced by the job.
    	 */
    	__u64 bo_handles;
    
    	/* Number of BO handles passed in (size is that times 4). */
    	__u32 bo_handle_count;
    
    	/* sync object to block on before running the CSD job.  Each
    	 * CSD job will execute in the order submitted to its FD.
    	 * Synchronization against rendering/TFU jobs or CSD from
    	 * other fds requires using sync objects.
    	 */
    	__u32 in_sync;
    	/* Sync object to signal when the CSD job is done. */
    	__u32 out_sync;
    
    	/* ID of the perfmon to attach to this job. 0 means no perfmon. */
    	__u32 perfmon_id;
    
    	/* Pointer to an array of ioctl extensions*/
    	__u64 extensions;
    
    	__u32 flags;
    
    	__u32 pad;
    };
    
    /**
     * struct drm_v3d_indirect_csd - ioctl extension for the CPU job to create an
     * indirect CSD
     *
     * When an extension of DRM_V3D_EXT_ID_CPU_INDIRECT_CSD id is defined, it
     * points to this extension to define a indirect CSD submission. It creates a
     * CPU job linked to a CSD job. The CPU job waits for the indirect CSD
     * dependencies and, once they are signaled, it updates the CSD job config
     * before allowing the CSD job execution.
     */
    struct drm_v3d_indirect_csd {
    	struct drm_v3d_extension base;
    
    	/* Indirect CSD */
    	struct drm_v3d_submit_csd submit;
    
    	/* Handle of the indirect BO, that should be also attached to the
    	 * indirect CSD.
    	 */
    	__u32 indirect;
    
    	/* Offset within the BO where the workgroup counts are stored */
    	__u32 offset;
    
    	/* Workgroups size */
    	__u32 wg_size;
    
    	/* Indices of the uniforms with the workgroup dispatch counts
    	 * in the uniform stream. If the uniform rewrite is not needed,
    	 * the offset must be 0xffffffff.
    	 */
    	__u32 wg_uniform_offsets[3];
    };
    
    /**
     * struct drm_v3d_timestamp_query - ioctl extension for the CPU job to calculate
     * a timestamp query
     *
     * When an extension DRM_V3D_EXT_ID_TIMESTAMP_QUERY is defined, it points to
     * this extension to define a timestamp query submission. This CPU job will
     * calculate the timestamp query and update the query value within the
     * timestamp BO. Moreover, it will signal the timestamp syncobj to indicate
     * query availability.
     */
    struct drm_v3d_timestamp_query {
    	struct drm_v3d_extension base;
    
    	/* Array of queries' offsets within the timestamp BO for their value */
    	__u64 offsets;
    
    	/* Array of timestamp's syncobjs to indicate its availability */
    	__u64 syncs;
    
    	/* Number of queries */
    	__u32 count;
    
    	/* mbz */
    	__u32 pad;
    };
    
    /**
     * struct drm_v3d_reset_timestamp_query - ioctl extension for the CPU job to
     * reset timestamp queries
     *
     * When an extension DRM_V3D_EXT_ID_CPU_RESET_TIMESTAMP_QUERY is defined, it
     * points to this extension to define a reset timestamp submission. This CPU
     * job will reset the timestamp queries based on value offset of the first
     * query. Moreover, it will reset the timestamp syncobj to reset query
     * availability.
     */
    struct drm_v3d_reset_timestamp_query {
    	struct drm_v3d_extension base;
    
    	/* Array of timestamp's syncobjs to indicate its availability */
    	__u64 syncs;
    
    	/* Offset of the first query within the timestamp BO for its value */
    	__u32 offset;
    
    	/* Number of queries */
    	__u32 count;
    };
    
    /**
     * struct drm_v3d_copy_timestamp_query - ioctl extension for the CPU job to copy
     * query results to a buffer
     *
     * When an extension DRM_V3D_EXT_ID_CPU_COPY_TIMESTAMP_QUERY is defined, it
     * points to this extension to define a copy timestamp query submission. This
     * CPU job will copy the timestamp queries results to a BO with the offset
     * and stride defined in the extension.
     */
    struct drm_v3d_copy_timestamp_query {
    	struct drm_v3d_extension base;
    
    	/* Define if should write to buffer using 64 or 32 bits */
    	__u8 do_64bit;
    
    	/* Define if it can write to buffer even if the query is not available */
    	__u8 do_partial;
    
    	/* Define if it should write availability bit to buffer */
    	__u8 availability_bit;
    
    	/* mbz */
    	__u8 pad;
    
    	/* Offset of the buffer in the BO */
    	__u32 offset;
    
    	/* Stride of the buffer in the BO */
    	__u32 stride;
    
    	/* Number of queries */
    	__u32 count;
    
    	/* Array of queries' offsets within the timestamp BO for their value */
    	__u64 offsets;
    
    	/* Array of timestamp's syncobjs to indicate its availability */
    	__u64 syncs;
    };
    
    /**
     * struct drm_v3d_reset_performance_query - ioctl extension for the CPU job to
     * reset performance queries
     *
     * When an extension DRM_V3D_EXT_ID_CPU_RESET_PERFORMANCE_QUERY is defined, it
     * points to this extension to define a reset performance submission. This CPU
     * job will reset the performance queries by resetting the values of the
     * performance monitors. Moreover, it will reset the syncobj to reset query
     * availability.
     */
    struct drm_v3d_reset_performance_query {
    	struct drm_v3d_extension base;
    
    	/* Array of performance queries's syncobjs to indicate its availability */
    	__u64 syncs;
    
    	/* Number of queries */
    	__u32 count;
    
    	/* Number of performance monitors */
    	__u32 nperfmons;
    
    	/* Array of u64 user-pointers that point to an array of kperfmon_ids */
    	__u64 kperfmon_ids;
    };
    
    /**
     * struct drm_v3d_copy_performance_query - ioctl extension for the CPU job to copy
     * performance query results to a buffer
     *
     * When an extension DRM_V3D_EXT_ID_CPU_COPY_PERFORMANCE_QUERY is defined, it
     * points to this extension to define a copy performance query submission. This
     * CPU job will copy the performance queries results to a BO with the offset
     * and stride defined in the extension.
     */
    struct drm_v3d_copy_performance_query {
    	struct drm_v3d_extension base;
    
    	/* Define if should write to buffer using 64 or 32 bits */
    	__u8 do_64bit;
    
    	/* Define if it can write to buffer even if the query is not available */
    	__u8 do_partial;
    
    	/* Define if it should write availability bit to buffer */
    	__u8 availability_bit;
    
    	/* mbz */
    	__u8 pad;
    
    	/* Offset of the buffer in the BO */
    	__u32 offset;
    
    	/* Stride of the buffer in the BO */
    	__u32 stride;
    
    	/* Number of performance monitors */
    	__u32 nperfmons;
    
    	/* Number of performance counters related to this query pool */
    	__u32 ncounters;
    
    	/* Number of queries */
    	__u32 count;
    
    	/* Array of performance queries's syncobjs to indicate its availability */
    	__u64 syncs;
    
    	/* Array of u64 user-pointers that point to an array of kperfmon_ids */
    	__u64 kperfmon_ids;
    };
    
    struct drm_v3d_submit_cpu {
    	/* Pointer to a u32 array of the BOs that are referenced by the job.
    	 *
    	 * For DRM_V3D_EXT_ID_CPU_INDIRECT_CSD, it must contain only one BO,
    	 * that contains the workgroup counts.
    	 *
    	 * For DRM_V3D_EXT_ID_TIMESTAMP_QUERY, it must contain only one BO,
    	 * that will contain the timestamp.
    	 *
    	 * For DRM_V3D_EXT_ID_CPU_RESET_TIMESTAMP_QUERY, it must contain only
    	 * one BO, that contains the timestamp.
    	 *
    	 * For DRM_V3D_EXT_ID_CPU_COPY_TIMESTAMP_QUERY, it must contain two
    	 * BOs. The first is the BO where the timestamp queries will be written
    	 * to. The second is the BO that contains the timestamp.
    	 *
    	 * For DRM_V3D_EXT_ID_CPU_RESET_PERFORMANCE_QUERY, it must contain no
    	 * BOs.
    	 *
    	 * For DRM_V3D_EXT_ID_CPU_COPY_PERFORMANCE_QUERY, it must contain one
    	 * BO, where the performance queries will be written.
    	 */
    	__u64 bo_handles;
    
    	/* Number of BO handles passed in (size is that times 4). */
    	__u32 bo_handle_count;
    
    	__u32 flags;
    
    	/* Pointer to an array of ioctl extensions*/
    	__u64 extensions;
    };
    
    /* The performance counters index represented by this enum are deprecated and
     * must no longer be used. These counters are only valid for V3D 4.2.
     *
     * In order to check for performance counter information,
     * use DRM_IOCTL_V3D_PERFMON_GET_COUNTER.
     *
     * Don't use V3D_PERFCNT_NUM to retrieve the maximum number of performance
     * counters. You should use DRM_IOCTL_V3D_GET_PARAM with the following
     * parameter: DRM_V3D_PARAM_MAX_PERF_COUNTERS.
     */
    enum {
    	V3D_PERFCNT_FEP_VALID_PRIMTS_NO_PIXELS,
    	V3D_PERFCNT_FEP_VALID_PRIMS,
    	V3D_PERFCNT_FEP_EZ_NFCLIP_QUADS,
    	V3D_PERFCNT_FEP_VALID_QUADS,
    	V3D_PERFCNT_TLB_QUADS_STENCIL_FAIL,
    	V3D_PERFCNT_TLB_QUADS_STENCILZ_FAIL,
    	V3D_PERFCNT_TLB_QUADS_STENCILZ_PASS,
    	V3D_PERFCNT_TLB_QUADS_ZERO_COV,
    	V3D_PERFCNT_TLB_QUADS_NONZERO_COV,
    	V3D_PERFCNT_TLB_QUADS_WRITTEN,
    	V3D_PERFCNT_PTB_PRIM_VIEWPOINT_DISCARD,
    	V3D_PERFCNT_PTB_PRIM_CLIP,
    	V3D_PERFCNT_PTB_PRIM_REV,
    	V3D_PERFCNT_QPU_IDLE_CYCLES,
    	V3D_PERFCNT_QPU_ACTIVE_CYCLES_VERTEX_COORD_USER,
    	V3D_PERFCNT_QPU_ACTIVE_CYCLES_FRAG,
    	V3D_PERFCNT_QPU_CYCLES_VALID_INSTR,
    	V3D_PERFCNT_QPU_CYCLES_TMU_STALL,
    	V3D_PERFCNT_QPU_CYCLES_SCOREBOARD_STALL,
    	V3D_PERFCNT_QPU_CYCLES_VARYINGS_STALL,
    	V3D_PERFCNT_QPU_IC_HIT,
    	V3D_PERFCNT_QPU_IC_MISS,
    	V3D_PERFCNT_QPU_UC_HIT,
    	V3D_PERFCNT_QPU_UC_MISS,
    	V3D_PERFCNT_TMU_TCACHE_ACCESS,
    	V3D_PERFCNT_TMU_TCACHE_MISS,
    	V3D_PERFCNT_VPM_VDW_STALL,
    	V3D_PERFCNT_VPM_VCD_STALL,
    	V3D_PERFCNT_BIN_ACTIVE,
    	V3D_PERFCNT_RDR_ACTIVE,
    	V3D_PERFCNT_L2T_HITS,
    	V3D_PERFCNT_L2T_MISSES,
    	V3D_PERFCNT_CYCLE_COUNT,
    	V3D_PERFCNT_QPU_CYCLES_STALLED_VERTEX_COORD_USER,
    	V3D_PERFCNT_QPU_CYCLES_STALLED_FRAGMENT,
    	V3D_PERFCNT_PTB_PRIMS_BINNED,
    	V3D_PERFCNT_AXI_WRITES_WATCH_0,
    	V3D_PERFCNT_AXI_READS_WATCH_0,
    	V3D_PERFCNT_AXI_WRITE_STALLS_WATCH_0,
    	V3D_PERFCNT_AXI_READ_STALLS_WATCH_0,
    	V3D_PERFCNT_AXI_WRITE_BYTES_WATCH_0,
    	V3D_PERFCNT_AXI_READ_BYTES_WATCH_0,
    	V3D_PERFCNT_AXI_WRITES_WATCH_1,
    	V3D_PERFCNT_AXI_READS_WATCH_1,
    	V3D_PERFCNT_AXI_WRITE_STALLS_WATCH_1,
    	V3D_PERFCNT_AXI_READ_STALLS_WATCH_1,
    	V3D_PERFCNT_AXI_WRITE_BYTES_WATCH_1,
    	V3D_PERFCNT_AXI_READ_BYTES_WATCH_1,
    	V3D_PERFCNT_TLB_PARTIAL_QUADS,
    	V3D_PERFCNT_TMU_CONFIG_ACCESSES,
    	V3D_PERFCNT_L2T_NO_ID_STALL,
    	V3D_PERFCNT_L2T_COM_QUE_STALL,
    	V3D_PERFCNT_L2T_TMU_WRITES,
    	V3D_PERFCNT_TMU_ACTIVE_CYCLES,
    	V3D_PERFCNT_TMU_STALLED_CYCLES,
    	V3D_PERFCNT_CLE_ACTIVE,
    	V3D_PERFCNT_L2T_TMU_READS,
    	V3D_PERFCNT_L2T_CLE_READS,
    	V3D_PERFCNT_L2T_VCD_READS,
    	V3D_PERFCNT_L2T_TMUCFG_READS,
    	V3D_PERFCNT_L2T_SLC0_READS,
    	V3D_PERFCNT_L2T_SLC1_READS,
    	V3D_PERFCNT_L2T_SLC2_READS,
    	V3D_PERFCNT_L2T_TMU_W_MISSES,
    	V3D_PERFCNT_L2T_TMU_R_MISSES,
    	V3D_PERFCNT_L2T_CLE_MISSES,
    	V3D_PERFCNT_L2T_VCD_MISSES,
    	V3D_PERFCNT_L2T_TMUCFG_MISSES,
    	V3D_PERFCNT_L2T_SLC0_MISSES,
    	V3D_PERFCNT_L2T_SLC1_MISSES,
    	V3D_PERFCNT_L2T_SLC2_MISSES,
    	V3D_PERFCNT_CORE_MEM_WRITES,
    	V3D_PERFCNT_L2T_MEM_WRITES,
    	V3D_PERFCNT_PTB_MEM_WRITES,
    	V3D_PERFCNT_TLB_MEM_WRITES,
    	V3D_PERFCNT_CORE_MEM_READS,
    	V3D_PERFCNT_L2T_MEM_READS,
    	V3D_PERFCNT_PTB_MEM_READS,
    	V3D_PERFCNT_PSE_MEM_READS,
    	V3D_PERFCNT_TLB_MEM_READS,
    	V3D_PERFCNT_GMP_MEM_READS,
    	V3D_PERFCNT_PTB_W_MEM_WORDS,
    	V3D_PERFCNT_TLB_W_MEM_WORDS,
    	V3D_PERFCNT_PSE_R_MEM_WORDS,
    	V3D_PERFCNT_TLB_R_MEM_WORDS,
    	V3D_PERFCNT_TMU_MRU_HITS,
    	V3D_PERFCNT_COMPUTE_ACTIVE,
    	V3D_PERFCNT_NUM,
    };
    
    #define DRM_V3D_MAX_PERF_COUNTERS                 32
    
    struct drm_v3d_perfmon_create {
    	__u32 id;
    	__u32 ncounters;
    	__u8 counters[DRM_V3D_MAX_PERF_COUNTERS];
    };
    
    struct drm_v3d_perfmon_destroy {
    	__u32 id;
    };
    
    /*
     * Returns the values of the performance counters tracked by this
     * perfmon (as an array of ncounters u64 values).
     *
     * No implicit synchronization is performed, so the user has to
     * guarantee that any jobs using this perfmon have already been
     * completed  (probably by blocking on the seqno returned by the
     * last exec that used the perfmon).
     */
    struct drm_v3d_perfmon_get_values {
    	__u32 id;
    	__u32 pad;
    	__u64 values_ptr;
    };
    
    #define DRM_V3D_PERFCNT_MAX_NAME 64
    #define DRM_V3D_PERFCNT_MAX_CATEGORY 32
    #define DRM_V3D_PERFCNT_MAX_DESCRIPTION 256
    
    /**
     * struct drm_v3d_perfmon_get_counter - ioctl to get the description of a
     * performance counter
     *
     * As userspace needs to retrieve information about the performance counters
     * available, this IOCTL allows users to get information about a performance
     * counter (name, category and description).
     */
    struct drm_v3d_perfmon_get_counter {
    	/*
    	 * Counter ID
    	 *
    	 * Must be smaller than the maximum number of performance counters, which
    	 * can be retrieve through DRM_V3D_PARAM_MAX_PERF_COUNTERS.
    	 */
    	__u8 counter;
    
    	/* Name of the counter */
    	__u8 name[DRM_V3D_PERFCNT_MAX_NAME];
    
    	/* Category of the counter */
    	__u8 category[DRM_V3D_PERFCNT_MAX_CATEGORY];
    
    	/* Description of the counter */
    	__u8 description[DRM_V3D_PERFCNT_MAX_DESCRIPTION];
    
    	/* mbz */
    	__u8 reserved[7];
    };
    
    #define DRM_V3D_PERFMON_CLEAR_GLOBAL    0x0001
    
    /**
     * struct drm_v3d_perfmon_set_global - ioctl to define a global performance
     * monitor
     *
     * The global performance monitor will be used for all jobs. If a global
     * performance monitor is defined, jobs with a self-defined performance
     * monitor won't be allowed.
     */
    struct drm_v3d_perfmon_set_global {
    	__u32 flags;
    	__u32 id;
    };
    
    #if defined(__cplusplus)
    }
    #endif
    
    #endif /* _V3D_DRM_H_ */