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Copy pathi915_drm.h
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1431 lines (1278 loc) · 45.6 KB
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/*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* 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, sub license, 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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 _UAPI_I915_DRM_H_
#define _UAPI_I915_DRM_H_
#include "drm.h"
#if defined(__cplusplus)
extern "C" {
#endif
/* Please note that modifications to all structs defined here are
* subject to backwards-compatibility constraints.
*/
/**
* DOC: uevents generated by i915 on it's device node
*
* I915_L3_PARITY_UEVENT - Generated when the driver receives a parity mismatch
* event from the gpu l3 cache. Additional information supplied is ROW,
* BANK, SUBBANK, SLICE of the affected cacheline. Userspace should keep
* track of these events and if a specific cache-line seems to have a
* persistent error remap it with the l3 remapping tool supplied in
* intel-gpu-tools. The value supplied with the event is always 1.
*
* I915_ERROR_UEVENT - Generated upon error detection, currently only via
* hangcheck. The error detection event is a good indicator of when things
* began to go badly. The value supplied with the event is a 1 upon error
* detection, and a 0 upon reset completion, signifying no more error
* exists. NOTE: Disabling hangcheck or reset via module parameter will
* cause the related events to not be seen.
*
* I915_RESET_UEVENT - Event is generated just before an attempt to reset the
* the GPU. The value supplied with the event is always 1. NOTE: Disable
* reset via module parameter will cause this event to not be seen.
*/
#define I915_L3_PARITY_UEVENT "L3_PARITY_ERROR"
#define I915_ERROR_UEVENT "ERROR"
#define I915_RESET_UEVENT "RESET"
/*
* MOCS indexes used for GPU surfaces, defining the cacheability of the
* surface data and the coherency for this data wrt. CPU vs. GPU accesses.
*/
enum i915_mocs_table_index {
/*
* Not cached anywhere, coherency between CPU and GPU accesses is
* guaranteed.
*/
I915_MOCS_UNCACHED,
/*
* Cacheability and coherency controlled by the kernel automatically
* based on the DRM_I915_GEM_SET_CACHING IOCTL setting and the current
* usage of the surface (used for display scanout or not).
*/
I915_MOCS_PTE,
/*
* Cached in all GPU caches available on the platform.
* Coherency between CPU and GPU accesses to the surface is not
* guaranteed without extra synchronization.
*/
I915_MOCS_CACHED,
};
/* Each region is a minimum of 16k, and there are at most 255 of them.
*/
#define I915_NR_TEX_REGIONS 255 /* table size 2k - maximum due to use
* of chars for next/prev indices */
#define I915_LOG_MIN_TEX_REGION_SIZE 14
typedef struct _drm_i915_init {
enum {
I915_INIT_DMA = 0x01,
I915_CLEANUP_DMA = 0x02,
I915_RESUME_DMA = 0x03
} func;
unsigned int mmio_offset;
int sarea_priv_offset;
unsigned int ring_start;
unsigned int ring_end;
unsigned int ring_size;
unsigned int front_offset;
unsigned int back_offset;
unsigned int depth_offset;
unsigned int w;
unsigned int h;
unsigned int pitch;
unsigned int pitch_bits;
unsigned int back_pitch;
unsigned int depth_pitch;
unsigned int cpp;
unsigned int chipset;
} drm_i915_init_t;
typedef struct _drm_i915_sarea {
struct drm_tex_region texList[I915_NR_TEX_REGIONS + 1];
int last_upload; /* last time texture was uploaded */
int last_enqueue; /* last time a buffer was enqueued */
int last_dispatch; /* age of the most recently dispatched buffer */
int ctxOwner; /* last context to upload state */
int texAge;
int pf_enabled; /* is pageflipping allowed? */
int pf_active;
int pf_current_page; /* which buffer is being displayed? */
int perf_boxes; /* performance boxes to be displayed */
int width, height; /* screen size in pixels */
drm_handle_t front_handle;
int front_offset;
int front_size;
drm_handle_t back_handle;
int back_offset;
int back_size;
drm_handle_t depth_handle;
int depth_offset;
int depth_size;
drm_handle_t tex_handle;
int tex_offset;
int tex_size;
int log_tex_granularity;
int pitch;
int rotation; /* 0, 90, 180 or 270 */
int rotated_offset;
int rotated_size;
int rotated_pitch;
int virtualX, virtualY;
unsigned int front_tiled;
unsigned int back_tiled;
unsigned int depth_tiled;
unsigned int rotated_tiled;
unsigned int rotated2_tiled;
int pipeA_x;
int pipeA_y;
int pipeA_w;
int pipeA_h;
int pipeB_x;
int pipeB_y;
int pipeB_w;
int pipeB_h;
/* fill out some space for old userspace triple buffer */
drm_handle_t unused_handle;
__u32 unused1, unused2, unused3;
/* buffer object handles for static buffers. May change
* over the lifetime of the client.
*/
__u32 front_bo_handle;
__u32 back_bo_handle;
__u32 unused_bo_handle;
__u32 depth_bo_handle;
} drm_i915_sarea_t;
/* due to userspace building against these headers we need some compat here */
#define planeA_x pipeA_x
#define planeA_y pipeA_y
#define planeA_w pipeA_w
#define planeA_h pipeA_h
#define planeB_x pipeB_x
#define planeB_y pipeB_y
#define planeB_w pipeB_w
#define planeB_h pipeB_h
/* Flags for perf_boxes
*/
#define I915_BOX_RING_EMPTY 0x1
#define I915_BOX_FLIP 0x2
#define I915_BOX_WAIT 0x4
#define I915_BOX_TEXTURE_LOAD 0x8
#define I915_BOX_LOST_CONTEXT 0x10
/*
* i915 specific ioctls.
*
* The device specific ioctl range is [DRM_COMMAND_BASE, DRM_COMMAND_END) ie
* [0x40, 0xa0) (a0 is excluded). The numbers below are defined as offset
* against DRM_COMMAND_BASE and should be between [0x0, 0x60).
*/
#define DRM_I915_INIT 0x00
#define DRM_I915_FLUSH 0x01
#define DRM_I915_FLIP 0x02
#define DRM_I915_BATCHBUFFER 0x03
#define DRM_I915_IRQ_EMIT 0x04
#define DRM_I915_IRQ_WAIT 0x05
#define DRM_I915_GETPARAM 0x06
#define DRM_I915_SETPARAM 0x07
#define DRM_I915_ALLOC 0x08
#define DRM_I915_FREE 0x09
#define DRM_I915_INIT_HEAP 0x0a
#define DRM_I915_CMDBUFFER 0x0b
#define DRM_I915_DESTROY_HEAP 0x0c
#define DRM_I915_SET_VBLANK_PIPE 0x0d
#define DRM_I915_GET_VBLANK_PIPE 0x0e
#define DRM_I915_VBLANK_SWAP 0x0f
#define DRM_I915_HWS_ADDR 0x11
#define DRM_I915_GEM_INIT 0x13
#define DRM_I915_GEM_EXECBUFFER 0x14
#define DRM_I915_GEM_PIN 0x15
#define DRM_I915_GEM_UNPIN 0x16
#define DRM_I915_GEM_BUSY 0x17
#define DRM_I915_GEM_THROTTLE 0x18
#define DRM_I915_GEM_ENTERVT 0x19
#define DRM_I915_GEM_LEAVEVT 0x1a
#define DRM_I915_GEM_CREATE 0x1b
#define DRM_I915_GEM_PREAD 0x1c
#define DRM_I915_GEM_PWRITE 0x1d
#define DRM_I915_GEM_MMAP 0x1e
#define DRM_I915_GEM_SET_DOMAIN 0x1f
#define DRM_I915_GEM_SW_FINISH 0x20
#define DRM_I915_GEM_SET_TILING 0x21
#define DRM_I915_GEM_GET_TILING 0x22
#define DRM_I915_GEM_GET_APERTURE 0x23
#define DRM_I915_GEM_MMAP_GTT 0x24
#define DRM_I915_GET_PIPE_FROM_CRTC_ID 0x25
#define DRM_I915_GEM_MADVISE 0x26
#define DRM_I915_OVERLAY_PUT_IMAGE 0x27
#define DRM_I915_OVERLAY_ATTRS 0x28
#define DRM_I915_GEM_EXECBUFFER2 0x29
#define DRM_I915_GEM_EXECBUFFER2_WR DRM_I915_GEM_EXECBUFFER2
#define DRM_I915_GET_SPRITE_COLORKEY 0x2a
#define DRM_I915_SET_SPRITE_COLORKEY 0x2b
#define DRM_I915_GEM_WAIT 0x2c
#define DRM_I915_GEM_CONTEXT_CREATE 0x2d
#define DRM_I915_GEM_CONTEXT_DESTROY 0x2e
#define DRM_I915_GEM_SET_CACHING 0x2f
#define DRM_I915_GEM_GET_CACHING 0x30
#define DRM_I915_REG_READ 0x31
#define DRM_I915_GET_RESET_STATS 0x32
#define DRM_I915_GEM_USERPTR 0x33
#define DRM_I915_GEM_CONTEXT_GETPARAM 0x34
#define DRM_I915_GEM_CONTEXT_SETPARAM 0x35
#define DRM_I915_PERF_OPEN 0x36
#define DRM_IOCTL_I915_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t)
#define DRM_IOCTL_I915_FLUSH DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH)
#define DRM_IOCTL_I915_FLIP DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLIP)
#define DRM_IOCTL_I915_BATCHBUFFER DRM_IOW( DRM_COMMAND_BASE + DRM_I915_BATCHBUFFER, drm_i915_batchbuffer_t)
#define DRM_IOCTL_I915_IRQ_EMIT DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_IRQ_EMIT, drm_i915_irq_emit_t)
#define DRM_IOCTL_I915_IRQ_WAIT DRM_IOW( DRM_COMMAND_BASE + DRM_I915_IRQ_WAIT, drm_i915_irq_wait_t)
#define DRM_IOCTL_I915_GETPARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GETPARAM, drm_i915_getparam_t)
#define DRM_IOCTL_I915_SETPARAM DRM_IOW( DRM_COMMAND_BASE + DRM_I915_SETPARAM, drm_i915_setparam_t)
#define DRM_IOCTL_I915_ALLOC DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_ALLOC, drm_i915_mem_alloc_t)
#define DRM_IOCTL_I915_FREE DRM_IOW( DRM_COMMAND_BASE + DRM_I915_FREE, drm_i915_mem_free_t)
#define DRM_IOCTL_I915_INIT_HEAP DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT_HEAP, drm_i915_mem_init_heap_t)
#define DRM_IOCTL_I915_CMDBUFFER DRM_IOW( DRM_COMMAND_BASE + DRM_I915_CMDBUFFER, drm_i915_cmdbuffer_t)
#define DRM_IOCTL_I915_DESTROY_HEAP DRM_IOW( DRM_COMMAND_BASE + DRM_I915_DESTROY_HEAP, drm_i915_mem_destroy_heap_t)
#define DRM_IOCTL_I915_SET_VBLANK_PIPE DRM_IOW( DRM_COMMAND_BASE + DRM_I915_SET_VBLANK_PIPE, drm_i915_vblank_pipe_t)
#define DRM_IOCTL_I915_GET_VBLANK_PIPE DRM_IOR( DRM_COMMAND_BASE + DRM_I915_GET_VBLANK_PIPE, drm_i915_vblank_pipe_t)
#define DRM_IOCTL_I915_VBLANK_SWAP DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_VBLANK_SWAP, drm_i915_vblank_swap_t)
#define DRM_IOCTL_I915_HWS_ADDR DRM_IOW(DRM_COMMAND_BASE + DRM_I915_HWS_ADDR, struct drm_i915_gem_init)
#define DRM_IOCTL_I915_GEM_INIT DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_INIT, struct drm_i915_gem_init)
#define DRM_IOCTL_I915_GEM_EXECBUFFER DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_EXECBUFFER, struct drm_i915_gem_execbuffer)
#define DRM_IOCTL_I915_GEM_EXECBUFFER2 DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_EXECBUFFER2, struct drm_i915_gem_execbuffer2)
#define DRM_IOCTL_I915_GEM_EXECBUFFER2_WR DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_EXECBUFFER2_WR, struct drm_i915_gem_execbuffer2)
#define DRM_IOCTL_I915_GEM_PIN DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_PIN, struct drm_i915_gem_pin)
#define DRM_IOCTL_I915_GEM_UNPIN DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_UNPIN, struct drm_i915_gem_unpin)
#define DRM_IOCTL_I915_GEM_BUSY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_BUSY, struct drm_i915_gem_busy)
#define DRM_IOCTL_I915_GEM_SET_CACHING DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_SET_CACHING, struct drm_i915_gem_caching)
#define DRM_IOCTL_I915_GEM_GET_CACHING DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_GET_CACHING, struct drm_i915_gem_caching)
#define DRM_IOCTL_I915_GEM_THROTTLE DRM_IO ( DRM_COMMAND_BASE + DRM_I915_GEM_THROTTLE)
#define DRM_IOCTL_I915_GEM_ENTERVT DRM_IO(DRM_COMMAND_BASE + DRM_I915_GEM_ENTERVT)
#define DRM_IOCTL_I915_GEM_LEAVEVT DRM_IO(DRM_COMMAND_BASE + DRM_I915_GEM_LEAVEVT)
#define DRM_IOCTL_I915_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_CREATE, struct drm_i915_gem_create)
#define DRM_IOCTL_I915_GEM_PREAD DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_PREAD, struct drm_i915_gem_pread)
#define DRM_IOCTL_I915_GEM_PWRITE DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_PWRITE, struct drm_i915_gem_pwrite)
#define DRM_IOCTL_I915_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_MMAP, struct drm_i915_gem_mmap)
#define DRM_IOCTL_I915_GEM_MMAP_GTT DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_MMAP_GTT, struct drm_i915_gem_mmap_gtt)
#define DRM_IOCTL_I915_GEM_SET_DOMAIN DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_SET_DOMAIN, struct drm_i915_gem_set_domain)
#define DRM_IOCTL_I915_GEM_SW_FINISH DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_SW_FINISH, struct drm_i915_gem_sw_finish)
#define DRM_IOCTL_I915_GEM_SET_TILING DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_SET_TILING, struct drm_i915_gem_set_tiling)
#define DRM_IOCTL_I915_GEM_GET_TILING DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_GET_TILING, struct drm_i915_gem_get_tiling)
#define DRM_IOCTL_I915_GEM_GET_APERTURE DRM_IOR (DRM_COMMAND_BASE + DRM_I915_GEM_GET_APERTURE, struct drm_i915_gem_get_aperture)
#define DRM_IOCTL_I915_GET_PIPE_FROM_CRTC_ID DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GET_PIPE_FROM_CRTC_ID, struct drm_i915_get_pipe_from_crtc_id)
#define DRM_IOCTL_I915_GEM_MADVISE DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_MADVISE, struct drm_i915_gem_madvise)
#define DRM_IOCTL_I915_OVERLAY_PUT_IMAGE DRM_IOW(DRM_COMMAND_BASE + DRM_I915_OVERLAY_PUT_IMAGE, struct drm_intel_overlay_put_image)
#define DRM_IOCTL_I915_OVERLAY_ATTRS DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_OVERLAY_ATTRS, struct drm_intel_overlay_attrs)
#define DRM_IOCTL_I915_SET_SPRITE_COLORKEY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_SET_SPRITE_COLORKEY, struct drm_intel_sprite_colorkey)
#define DRM_IOCTL_I915_GET_SPRITE_COLORKEY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GET_SPRITE_COLORKEY, struct drm_intel_sprite_colorkey)
#define DRM_IOCTL_I915_GEM_WAIT DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_WAIT, struct drm_i915_gem_wait)
#define DRM_IOCTL_I915_GEM_CONTEXT_CREATE DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_CONTEXT_CREATE, struct drm_i915_gem_context_create)
#define DRM_IOCTL_I915_GEM_CONTEXT_DESTROY DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_CONTEXT_DESTROY, struct drm_i915_gem_context_destroy)
#define DRM_IOCTL_I915_REG_READ DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_REG_READ, struct drm_i915_reg_read)
#define DRM_IOCTL_I915_GET_RESET_STATS DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GET_RESET_STATS, struct drm_i915_reset_stats)
#define DRM_IOCTL_I915_GEM_USERPTR DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_USERPTR, struct drm_i915_gem_userptr)
#define DRM_IOCTL_I915_GEM_CONTEXT_GETPARAM DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_CONTEXT_GETPARAM, struct drm_i915_gem_context_param)
#define DRM_IOCTL_I915_GEM_CONTEXT_SETPARAM DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_CONTEXT_SETPARAM, struct drm_i915_gem_context_param)
#define DRM_IOCTL_I915_PERF_OPEN DRM_IOW(DRM_COMMAND_BASE + DRM_I915_PERF_OPEN, struct drm_i915_perf_open_param)
/* Allow drivers to submit batchbuffers directly to hardware, relying
* on the security mechanisms provided by hardware.
*/
typedef struct drm_i915_batchbuffer {
int start; /* agp offset */
int used; /* nr bytes in use */
int DR1; /* hw flags for GFX_OP_DRAWRECT_INFO */
int DR4; /* window origin for GFX_OP_DRAWRECT_INFO */
int num_cliprects; /* mulitpass with multiple cliprects? */
struct drm_clip_rect __user *cliprects; /* pointer to userspace cliprects */
} drm_i915_batchbuffer_t;
/* As above, but pass a pointer to userspace buffer which can be
* validated by the kernel prior to sending to hardware.
*/
typedef struct _drm_i915_cmdbuffer {
char __user *buf; /* pointer to userspace command buffer */
int sz; /* nr bytes in buf */
int DR1; /* hw flags for GFX_OP_DRAWRECT_INFO */
int DR4; /* window origin for GFX_OP_DRAWRECT_INFO */
int num_cliprects; /* mulitpass with multiple cliprects? */
struct drm_clip_rect __user *cliprects; /* pointer to userspace cliprects */
} drm_i915_cmdbuffer_t;
/* Userspace can request & wait on irq's:
*/
typedef struct drm_i915_irq_emit {
int __user *irq_seq;
} drm_i915_irq_emit_t;
typedef struct drm_i915_irq_wait {
int irq_seq;
} drm_i915_irq_wait_t;
/* Ioctl to query kernel params:
*/
#define I915_PARAM_IRQ_ACTIVE 1
#define I915_PARAM_ALLOW_BATCHBUFFER 2
#define I915_PARAM_LAST_DISPATCH 3
#define I915_PARAM_CHIPSET_ID 4
#define I915_PARAM_HAS_GEM 5
#define I915_PARAM_NUM_FENCES_AVAIL 6
#define I915_PARAM_HAS_OVERLAY 7
#define I915_PARAM_HAS_PAGEFLIPPING 8
#define I915_PARAM_HAS_EXECBUF2 9
#define I915_PARAM_HAS_BSD 10
#define I915_PARAM_HAS_BLT 11
#define I915_PARAM_HAS_RELAXED_FENCING 12
#define I915_PARAM_HAS_COHERENT_RINGS 13
#define I915_PARAM_HAS_EXEC_CONSTANTS 14
#define I915_PARAM_HAS_RELAXED_DELTA 15
#define I915_PARAM_HAS_GEN7_SOL_RESET 16
#define I915_PARAM_HAS_LLC 17
#define I915_PARAM_HAS_ALIASING_PPGTT 18
#define I915_PARAM_HAS_WAIT_TIMEOUT 19
#define I915_PARAM_HAS_SEMAPHORES 20
#define I915_PARAM_HAS_PRIME_VMAP_FLUSH 21
#define I915_PARAM_HAS_VEBOX 22
#define I915_PARAM_HAS_SECURE_BATCHES 23
#define I915_PARAM_HAS_PINNED_BATCHES 24
#define I915_PARAM_HAS_EXEC_NO_RELOC 25
#define I915_PARAM_HAS_EXEC_HANDLE_LUT 26
#define I915_PARAM_HAS_WT 27
#define I915_PARAM_CMD_PARSER_VERSION 28
#define I915_PARAM_HAS_COHERENT_PHYS_GTT 29
#define I915_PARAM_MMAP_VERSION 30
#define I915_PARAM_HAS_BSD2 31
#define I915_PARAM_REVISION 32
#define I915_PARAM_SUBSLICE_TOTAL 33
#define I915_PARAM_EU_TOTAL 34
#define I915_PARAM_HAS_GPU_RESET 35
#define I915_PARAM_HAS_RESOURCE_STREAMER 36
#define I915_PARAM_HAS_EXEC_SOFTPIN 37
#define I915_PARAM_HAS_POOLED_EU 38
#define I915_PARAM_MIN_EU_IN_POOL 39
#define I915_PARAM_MMAP_GTT_VERSION 40
/* Query whether DRM_I915_GEM_EXECBUFFER2 supports user defined execution
* priorities and the driver will attempt to execute batches in priority order.
*/
#define I915_PARAM_HAS_SCHEDULER 41
#define I915_PARAM_HUC_STATUS 42
/* Query whether DRM_I915_GEM_EXECBUFFER2 supports the ability to opt-out of
* synchronisation with implicit fencing on individual objects.
* See EXEC_OBJECT_ASYNC.
*/
#define I915_PARAM_HAS_EXEC_ASYNC 43
/* Query whether DRM_I915_GEM_EXECBUFFER2 supports explicit fence support -
* both being able to pass in a sync_file fd to wait upon before executing,
* and being able to return a new sync_file fd that is signaled when the
* current request is complete. See I915_EXEC_FENCE_IN and I915_EXEC_FENCE_OUT.
*/
#define I915_PARAM_HAS_EXEC_FENCE 44
typedef struct drm_i915_getparam {
__s32 param;
/*
* WARNING: Using pointers instead of fixed-size u64 means we need to write
* compat32 code. Don't repeat this mistake.
*/
int __user *value;
} drm_i915_getparam_t;
/* Ioctl to set kernel params:
*/
#define I915_SETPARAM_USE_MI_BATCHBUFFER_START 1
#define I915_SETPARAM_TEX_LRU_LOG_GRANULARITY 2
#define I915_SETPARAM_ALLOW_BATCHBUFFER 3
#define I915_SETPARAM_NUM_USED_FENCES 4
typedef struct drm_i915_setparam {
int param;
int value;
} drm_i915_setparam_t;
/* A memory manager for regions of shared memory:
*/
#define I915_MEM_REGION_AGP 1
typedef struct drm_i915_mem_alloc {
int region;
int alignment;
int size;
int __user *region_offset; /* offset from start of fb or agp */
} drm_i915_mem_alloc_t;
typedef struct drm_i915_mem_free {
int region;
int region_offset;
} drm_i915_mem_free_t;
typedef struct drm_i915_mem_init_heap {
int region;
int size;
int start;
} drm_i915_mem_init_heap_t;
/* Allow memory manager to be torn down and re-initialized (eg on
* rotate):
*/
typedef struct drm_i915_mem_destroy_heap {
int region;
} drm_i915_mem_destroy_heap_t;
/* Allow X server to configure which pipes to monitor for vblank signals
*/
#define DRM_I915_VBLANK_PIPE_A 1
#define DRM_I915_VBLANK_PIPE_B 2
typedef struct drm_i915_vblank_pipe {
int pipe;
} drm_i915_vblank_pipe_t;
/* Schedule buffer swap at given vertical blank:
*/
typedef struct drm_i915_vblank_swap {
drm_drawable_t drawable;
enum drm_vblank_seq_type seqtype;
unsigned int sequence;
} drm_i915_vblank_swap_t;
typedef struct drm_i915_hws_addr {
__u64 addr;
} drm_i915_hws_addr_t;
struct drm_i915_gem_init {
/**
* Beginning offset in the GTT to be managed by the DRM memory
* manager.
*/
__u64 gtt_start;
/**
* Ending offset in the GTT to be managed by the DRM memory
* manager.
*/
__u64 gtt_end;
};
struct drm_i915_gem_create {
/**
* Requested size for the object.
*
* The (page-aligned) allocated size for the object will be returned.
*/
__u64 size;
/**
* Returned handle for the object.
*
* Object handles are nonzero.
*/
__u32 handle;
__u32 pad;
};
struct drm_i915_gem_pread {
/** Handle for the object being read. */
__u32 handle;
__u32 pad;
/** Offset into the object to read from */
__u64 offset;
/** Length of data to read */
__u64 size;
/**
* Pointer to write the data into.
*
* This is a fixed-size type for 32/64 compatibility.
*/
__u64 data_ptr;
};
struct drm_i915_gem_pwrite {
/** Handle for the object being written to. */
__u32 handle;
__u32 pad;
/** Offset into the object to write to */
__u64 offset;
/** Length of data to write */
__u64 size;
/**
* Pointer to read the data from.
*
* This is a fixed-size type for 32/64 compatibility.
*/
__u64 data_ptr;
};
struct drm_i915_gem_mmap {
/** Handle for the object being mapped. */
__u32 handle;
__u32 pad;
/** Offset in the object to map. */
__u64 offset;
/**
* Length of data to map.
*
* The value will be page-aligned.
*/
__u64 size;
/**
* Returned pointer the data was mapped at.
*
* This is a fixed-size type for 32/64 compatibility.
*/
__u64 addr_ptr;
/**
* Flags for extended behaviour.
*
* Added in version 2.
*/
__u64 flags;
#define I915_MMAP_WC 0x1
};
struct drm_i915_gem_mmap_gtt {
/** Handle for the object being mapped. */
__u32 handle;
__u32 pad;
/**
* Fake offset to use for subsequent mmap call
*
* This is a fixed-size type for 32/64 compatibility.
*/
__u64 offset;
};
struct drm_i915_gem_set_domain {
/** Handle for the object */
__u32 handle;
/** New read domains */
__u32 read_domains;
/** New write domain */
__u32 write_domain;
};
struct drm_i915_gem_sw_finish {
/** Handle for the object */
__u32 handle;
};
struct drm_i915_gem_relocation_entry {
/**
* Handle of the buffer being pointed to by this relocation entry.
*
* It's appealing to make this be an index into the mm_validate_entry
* list to refer to the buffer, but this allows the driver to create
* a relocation list for state buffers and not re-write it per
* exec using the buffer.
*/
__u32 target_handle;
/**
* Value to be added to the offset of the target buffer to make up
* the relocation entry.
*/
__u32 delta;
/** Offset in the buffer the relocation entry will be written into */
__u64 offset;
/**
* Offset value of the target buffer that the relocation entry was last
* written as.
*
* If the buffer has the same offset as last time, we can skip syncing
* and writing the relocation. This value is written back out by
* the execbuffer ioctl when the relocation is written.
*/
__u64 presumed_offset;
/**
* Target memory domains read by this operation.
*/
__u32 read_domains;
/**
* Target memory domains written by this operation.
*
* Note that only one domain may be written by the whole
* execbuffer operation, so that where there are conflicts,
* the application will get -EINVAL back.
*/
__u32 write_domain;
};
/** @{
* Intel memory domains
*
* Most of these just align with the various caches in
* the system and are used to flush and invalidate as
* objects end up cached in different domains.
*/
/** CPU cache */
#define I915_GEM_DOMAIN_CPU 0x00000001
/** Render cache, used by 2D and 3D drawing */
#define I915_GEM_DOMAIN_RENDER 0x00000002
/** Sampler cache, used by texture engine */
#define I915_GEM_DOMAIN_SAMPLER 0x00000004
/** Command queue, used to load batch buffers */
#define I915_GEM_DOMAIN_COMMAND 0x00000008
/** Instruction cache, used by shader programs */
#define I915_GEM_DOMAIN_INSTRUCTION 0x00000010
/** Vertex address cache */
#define I915_GEM_DOMAIN_VERTEX 0x00000020
/** GTT domain - aperture and scanout */
#define I915_GEM_DOMAIN_GTT 0x00000040
/** @} */
struct drm_i915_gem_exec_object {
/**
* User's handle for a buffer to be bound into the GTT for this
* operation.
*/
__u32 handle;
/** Number of relocations to be performed on this buffer */
__u32 relocation_count;
/**
* Pointer to array of struct drm_i915_gem_relocation_entry containing
* the relocations to be performed in this buffer.
*/
__u64 relocs_ptr;
/** Required alignment in graphics aperture */
__u64 alignment;
/**
* Returned value of the updated offset of the object, for future
* presumed_offset writes.
*/
__u64 offset;
};
struct drm_i915_gem_execbuffer {
/**
* List of buffers to be validated with their relocations to be
* performend on them.
*
* This is a pointer to an array of struct drm_i915_gem_validate_entry.
*
* These buffers must be listed in an order such that all relocations
* a buffer is performing refer to buffers that have already appeared
* in the validate list.
*/
__u64 buffers_ptr;
__u32 buffer_count;
/** Offset in the batchbuffer to start execution from. */
__u32 batch_start_offset;
/** Bytes used in batchbuffer from batch_start_offset */
__u32 batch_len;
__u32 DR1;
__u32 DR4;
__u32 num_cliprects;
/** This is a struct drm_clip_rect *cliprects */
__u64 cliprects_ptr;
};
struct drm_i915_gem_exec_object2 {
/**
* User's handle for a buffer to be bound into the GTT for this
* operation.
*/
__u32 handle;
/** Number of relocations to be performed on this buffer */
__u32 relocation_count;
/**
* Pointer to array of struct drm_i915_gem_relocation_entry containing
* the relocations to be performed in this buffer.
*/
__u64 relocs_ptr;
/** Required alignment in graphics aperture */
__u64 alignment;
/**
* When the EXEC_OBJECT_PINNED flag is specified this is populated by
* the user with the GTT offset at which this object will be pinned.
* When the I915_EXEC_NO_RELOC flag is specified this must contain the
* presumed_offset of the object.
* During execbuffer2 the kernel populates it with the value of the
* current GTT offset of the object, for future presumed_offset writes.
*/
__u64 offset;
#define EXEC_OBJECT_NEEDS_FENCE (1<<0)
#define EXEC_OBJECT_NEEDS_GTT (1<<1)
#define EXEC_OBJECT_WRITE (1<<2)
#define EXEC_OBJECT_SUPPORTS_48B_ADDRESS (1<<3)
#define EXEC_OBJECT_PINNED (1<<4)
#define EXEC_OBJECT_PAD_TO_SIZE (1<<5)
/* The kernel implicitly tracks GPU activity on all GEM objects, and
* synchronises operations with outstanding rendering. This includes
* rendering on other devices if exported via dma-buf. However, sometimes
* this tracking is too coarse and the user knows better. For example,
* if the object is split into non-overlapping ranges shared between different
* clients or engines (i.e. suballocating objects), the implicit tracking
* by kernel assumes that each operation affects the whole object rather
* than an individual range, causing needless synchronisation between clients.
* The kernel will also forgo any CPU cache flushes prior to rendering from
* the object as the client is expected to be also handling such domain
* tracking.
*
* The kernel maintains the implicit tracking in order to manage resources
* used by the GPU - this flag only disables the synchronisation prior to
* rendering with this object in this execbuf.
*
* Opting out of implicit synhronisation requires the user to do its own
* explicit tracking to avoid rendering corruption. See, for example,
* I915_PARAM_HAS_EXEC_FENCE to order execbufs and execute them asynchronously.
*/
#define EXEC_OBJECT_ASYNC (1<<6)
/* All remaining bits are MBZ and RESERVED FOR FUTURE USE */
#define __EXEC_OBJECT_UNKNOWN_FLAGS -(EXEC_OBJECT_ASYNC<<1)
__u64 flags;
union {
__u64 rsvd1;
__u64 pad_to_size;
};
__u64 rsvd2;
};
struct drm_i915_gem_execbuffer2 {
/**
* List of gem_exec_object2 structs
*/
__u64 buffers_ptr;
__u32 buffer_count;
/** Offset in the batchbuffer to start execution from. */
__u32 batch_start_offset;
/** Bytes used in batchbuffer from batch_start_offset */
__u32 batch_len;
__u32 DR1;
__u32 DR4;
__u32 num_cliprects;
/** This is a struct drm_clip_rect *cliprects */
__u64 cliprects_ptr;
#define I915_EXEC_RING_MASK (7<<0)
#define I915_EXEC_DEFAULT (0<<0)
#define I915_EXEC_RENDER (1<<0)
#define I915_EXEC_BSD (2<<0)
#define I915_EXEC_BLT (3<<0)
#define I915_EXEC_VEBOX (4<<0)
/* Used for switching the constants addressing mode on gen4+ RENDER ring.
* Gen6+ only supports relative addressing to dynamic state (default) and
* absolute addressing.
*
* These flags are ignored for the BSD and BLT rings.
*/
#define I915_EXEC_CONSTANTS_MASK (3<<6)
#define I915_EXEC_CONSTANTS_REL_GENERAL (0<<6) /* default */
#define I915_EXEC_CONSTANTS_ABSOLUTE (1<<6)
#define I915_EXEC_CONSTANTS_REL_SURFACE (2<<6) /* gen4/5 only */
__u64 flags;
__u64 rsvd1; /* now used for context info */
__u64 rsvd2;
};
/** Resets the SO write offset registers for transform feedback on gen7. */
#define I915_EXEC_GEN7_SOL_RESET (1<<8)
/** Request a privileged ("secure") batch buffer. Note only available for
* DRM_ROOT_ONLY | DRM_MASTER processes.
*/
#define I915_EXEC_SECURE (1<<9)
/** Inform the kernel that the batch is and will always be pinned. This
* negates the requirement for a workaround to be performed to avoid
* an incoherent CS (such as can be found on 830/845). If this flag is
* not passed, the kernel will endeavour to make sure the batch is
* coherent with the CS before execution. If this flag is passed,
* userspace assumes the responsibility for ensuring the same.
*/
#define I915_EXEC_IS_PINNED (1<<10)
/** Provide a hint to the kernel that the command stream and auxiliary
* state buffers already holds the correct presumed addresses and so the
* relocation process may be skipped if no buffers need to be moved in
* preparation for the execbuffer.
*/
#define I915_EXEC_NO_RELOC (1<<11)
/** Use the reloc.handle as an index into the exec object array rather
* than as the per-file handle.
*/
#define I915_EXEC_HANDLE_LUT (1<<12)
/** Used for switching BSD rings on the platforms with two BSD rings */
#define I915_EXEC_BSD_SHIFT (13)
#define I915_EXEC_BSD_MASK (3 << I915_EXEC_BSD_SHIFT)
/* default ping-pong mode */
#define I915_EXEC_BSD_DEFAULT (0 << I915_EXEC_BSD_SHIFT)
#define I915_EXEC_BSD_RING1 (1 << I915_EXEC_BSD_SHIFT)
#define I915_EXEC_BSD_RING2 (2 << I915_EXEC_BSD_SHIFT)
/** Tell the kernel that the batchbuffer is processed by
* the resource streamer.
*/
#define I915_EXEC_RESOURCE_STREAMER (1<<15)
/* Setting I915_EXEC_FENCE_IN implies that lower_32_bits(rsvd2) represent
* a sync_file fd to wait upon (in a nonblocking manner) prior to executing
* the batch.
*
* Returns -EINVAL if the sync_file fd cannot be found.
*/
#define I915_EXEC_FENCE_IN (1<<16)
/* Setting I915_EXEC_FENCE_OUT causes the ioctl to return a sync_file fd
* in the upper_32_bits(rsvd2) upon success. Ownership of the fd is given
* to the caller, and it should be close() after use. (The fd is a regular
* file descriptor and will be cleaned up on process termination. It holds
* a reference to the request, but nothing else.)
*
* The sync_file fd can be combined with other sync_file and passed either
* to execbuf using I915_EXEC_FENCE_IN, to atomic KMS ioctls (so that a flip
* will only occur after this request completes), or to other devices.
*
* Using I915_EXEC_FENCE_OUT requires use of
* DRM_IOCTL_I915_GEM_EXECBUFFER2_WR ioctl so that the result is written
* back to userspace. Failure to do so will cause the out-fence to always
* be reported as zero, and the real fence fd to be leaked.
*/
#define I915_EXEC_FENCE_OUT (1<<17)
#define __I915_EXEC_UNKNOWN_FLAGS (-(I915_EXEC_FENCE_OUT<<1))
#define I915_EXEC_CONTEXT_ID_MASK (0xffffffff)
#define i915_execbuffer2_set_context_id(eb2, context) \
(eb2).rsvd1 = context & I915_EXEC_CONTEXT_ID_MASK
#define i915_execbuffer2_get_context_id(eb2) \
((eb2).rsvd1 & I915_EXEC_CONTEXT_ID_MASK)
struct drm_i915_gem_pin {
/** Handle of the buffer to be pinned. */
__u32 handle;
__u32 pad;
/** alignment required within the aperture */
__u64 alignment;
/** Returned GTT offset of the buffer. */
__u64 offset;
};
struct drm_i915_gem_unpin {
/** Handle of the buffer to be unpinned. */
__u32 handle;
__u32 pad;
};
struct drm_i915_gem_busy {
/** Handle of the buffer to check for busy */
__u32 handle;
/** Return busy status
*
* A return of 0 implies that the object is idle (after
* having flushed any pending activity), and a non-zero return that
* the object is still in-flight on the GPU. (The GPU has not yet
* signaled completion for all pending requests that reference the
* object.) An object is guaranteed to become idle eventually (so
* long as no new GPU commands are executed upon it). Due to the
* asynchronous nature of the hardware, an object reported
* as busy may become idle before the ioctl is completed.
*
* Furthermore, if the object is busy, which engine is busy is only
* provided as a guide. There are race conditions which prevent the
* report of which engines are busy from being always accurate.
* However, the converse is not true. If the object is idle, the
* result of the ioctl, that all engines are idle, is accurate.
*
* The returned dword is split into two fields to indicate both
* the engines on which the object is being read, and the
* engine on which it is currently being written (if any).
*
* The low word (bits 0:15) indicate if the object is being written
* to by any engine (there can only be one, as the GEM implicit
* synchronisation rules force writes to be serialised). Only the
* engine for the last write is reported.
*
* The high word (bits 16:31) are a bitmask of which engines are
* currently reading from the object. Multiple engines may be
* reading from the object simultaneously.
*
* The value of each engine is the same as specified in the
* EXECBUFFER2 ioctl, i.e. I915_EXEC_RENDER, I915_EXEC_BSD etc.
* Note I915_EXEC_DEFAULT is a symbolic value and is mapped to
* the I915_EXEC_RENDER engine for execution, and so it is never
* reported as active itself. Some hardware may have parallel
* execution engines, e.g. multiple media engines, which are
* mapped to the same identifier in the EXECBUFFER2 ioctl and
* so are not separately reported for busyness.
*
* Caveat emptor:
* Only the boolean result of this query is reliable; that is whether
* the object is idle or busy. The report of which engines are busy
* should be only used as a heuristic.
*/
__u32 busy;
};
/**
* I915_CACHING_NONE
*
* GPU access is not coherent with cpu caches. Default for machines without an
* LLC.
*/
#define I915_CACHING_NONE 0
/**
* I915_CACHING_CACHED
*
* GPU access is coherent with cpu caches and furthermore the data is cached in
* last-level caches shared between cpu cores and the gpu GT. Default on
* machines with HAS_LLC.
*/
#define I915_CACHING_CACHED 1
/**
* I915_CACHING_DISPLAY
*
* Special GPU caching mode which is coherent with the scanout engines.
* Transparently falls back to I915_CACHING_NONE on platforms where no special
* cache mode (like write-through or gfdt flushing) is available. The kernel
* automatically sets this mode when using a buffer as a scanout target.
* Userspace can manually set this mode to avoid a costly stall and clflush in
* the hotpath of drawing the first frame.
*/
#define I915_CACHING_DISPLAY 2
struct drm_i915_gem_caching {
/**
* Handle of the buffer to set/get the caching level of. */
__u32 handle;