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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 _I915_DRM_H_ #define _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, }; /* * Different engines serve different roles, and there may be more than one * engine serving each role. enum drm_i915_gem_engine_class provides a * classification of the role of the engine, which may be used when requesting * operations to be performed on a certain subset of engines, or for providing * information about that group. */ enum drm_i915_gem_engine_class { I915_ENGINE_CLASS_RENDER = 0, I915_ENGINE_CLASS_COPY = 1, I915_ENGINE_CLASS_VIDEO = 2, I915_ENGINE_CLASS_VIDEO_ENHANCE = 3, I915_ENGINE_CLASS_INVALID = -1 }; /** * DOC: perf_events exposed by i915 through /sys/bus/event_sources/drivers/i915 * */ enum drm_i915_pmu_engine_sample { I915_SAMPLE_BUSY = 0, I915_SAMPLE_WAIT = 1, I915_SAMPLE_SEMA = 2 }; #define I915_PMU_SAMPLE_BITS (4) #define I915_PMU_SAMPLE_MASK (0xf) #define I915_PMU_SAMPLE_INSTANCE_BITS (8) #define I915_PMU_CLASS_SHIFT \ (I915_PMU_SAMPLE_BITS + I915_PMU_SAMPLE_INSTANCE_BITS) #define __I915_PMU_ENGINE(class, instance, sample) \ ((class) << I915_PMU_CLASS_SHIFT | \ (instance) << I915_PMU_SAMPLE_BITS | \ (sample)) #define I915_PMU_ENGINE_BUSY(class, instance) \ __I915_PMU_ENGINE(class, instance, I915_SAMPLE_BUSY) #define I915_PMU_ENGINE_WAIT(class, instance) \ __I915_PMU_ENGINE(class, instance, I915_SAMPLE_WAIT) #define I915_PMU_ENGINE_SEMA(class, instance) \ __I915_PMU_ENGINE(class, instance, I915_SAMPLE_SEMA) #define __I915_PMU_OTHER(x) (__I915_PMU_ENGINE(0xff, 0xff, 0xf) + 1 + (x)) #define I915_PMU_ACTUAL_FREQUENCY __I915_PMU_OTHER(0) #define I915_PMU_REQUESTED_FREQUENCY __I915_PMU_OTHER(1) #define I915_PMU_INTERRUPTS __I915_PMU_OTHER(2) #define I915_PMU_RC6_RESIDENCY __I915_PMU_OTHER(3) #define I915_PMU_LAST I915_PMU_RC6_RESIDENCY /* 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_I915_PERF_ADD_CONFIG 0x37 #define DRM_I915_PERF_REMOVE_CONFIG 0x38 #define DRM_I915_QUERY 0x39 #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) #define DRM_IOCTL_I915_PERF_ADD_CONFIG DRM_IOW(DRM_COMMAND_BASE + DRM_I915_PERF_ADD_CONFIG, struct drm_i915_perf_oa_config) #define DRM_IOCTL_I915_PERF_REMOVE_CONFIG DRM_IOW(DRM_COMMAND_BASE + DRM_I915_PERF_REMOVE_CONFIG, __u64) #define DRM_IOCTL_I915_QUERY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_QUERY, struct drm_i915_query) /* 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 *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 *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 *cliprects; /* pointer to userspace cliprects */ } drm_i915_cmdbuffer_t; /* Userspace can request & wait on irq's: */ typedef struct drm_i915_irq_emit { int *irq_seq; } drm_i915_irq_emit_t; typedef struct drm_i915_irq_wait { int irq_seq; } drm_i915_irq_wait_t; /* * Different modes of per-process Graphics Translation Table, * see I915_PARAM_HAS_ALIASING_PPGTT */ #define I915_GEM_PPGTT_NONE 0 #define I915_GEM_PPGTT_ALIASING 1 #define I915_GEM_PPGTT_FULL 2 /* 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. * The param returns a capability bitmask, nonzero implies that the scheduler * is enabled, with different features present according to the mask. * * The initial priority for each batch is supplied by the context and is * controlled via I915_CONTEXT_PARAM_PRIORITY. */ #define I915_PARAM_HAS_SCHEDULER 41 #define I915_SCHEDULER_CAP_ENABLED (1ul << 0) #define I915_SCHEDULER_CAP_PRIORITY (1ul << 1) #define I915_SCHEDULER_CAP_PREEMPTION (1ul << 2) #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 /* Query whether DRM_I915_GEM_EXECBUFFER2 supports the ability to capture * user specified bufffers for post-mortem debugging of GPU hangs. See * EXEC_OBJECT_CAPTURE. */ #define I915_PARAM_HAS_EXEC_CAPTURE 45 #define I915_PARAM_SLICE_MASK 46 /* Assuming it's uniform for each slice, this queries the mask of subslices * per-slice for this system. */ #define I915_PARAM_SUBSLICE_MASK 47 /* * Query whether DRM_I915_GEM_EXECBUFFER2 supports supplying the batch buffer * as the first execobject as opposed to the last. See I915_EXEC_BATCH_FIRST. */ #define I915_PARAM_HAS_EXEC_BATCH_FIRST 48 /* Query whether DRM_I915_GEM_EXECBUFFER2 supports supplying an array of * drm_i915_gem_exec_fence structures. See I915_EXEC_FENCE_ARRAY. */ #define I915_PARAM_HAS_EXEC_FENCE_ARRAY 49 /* * Query whether every context (both per-file default and user created) is * isolated (insofar as HW supports). If this parameter is not true, then * freshly created contexts may inherit values from an existing context, * rather than default HW values. If true, it also ensures (insofar as HW * supports) that all state set by this context will not leak to any other * context. * * As not every engine across every gen support contexts, the returned * value reports the support of context isolation for individual engines by * returning a bitmask of each engine class set to true if that class supports * isolation. */ #define I915_PARAM_HAS_CONTEXT_ISOLATION 50 /* Frequency of the command streamer timestamps given by the *_TIMESTAMP * registers. This used to be fixed per platform but from CNL onwards, this * might vary depending on the parts. */ #define I915_PARAM_CS_TIMESTAMP_FREQUENCY 51 /* * Once upon a time we supposed that writes through the GGTT would be * immediately in physical memory (once flushed out of the CPU path). However, * on a few different processors and chipsets, this is not necessarily the case * as the writes appear to be buffered internally. Thus a read of the backing * storage (physical memory) via a different path (with different physical tags * to the indirect write via the GGTT) will see stale values from before * the GGTT write. Inside the kernel, we can for the most part keep track of * the different read/write domains in use (e.g. set-domain), but the assumption * of coherency is baked into the ABI, hence reporting its true state in this * parameter. * * Reports true when writes via mmap_gtt are immediately visible following an * lfence to flush the WCB. * * Reports false when writes via mmap_gtt are indeterminately delayed in an in * internal buffer and are _not_ immediately visible to third parties accessing * directly via mmap_cpu/mmap_wc. Use of mmap_gtt as part of an IPC * communications channel when reporting false is strongly disadvised. */ #define I915_PARAM_MMAP_GTT_COHERENT 52 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 *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 *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 /** WC domain - uncached access */ #define I915_GEM_DOMAIN_WC 0x00000080 /** @} */ 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) /* Request that the contents of this execobject be copied into the error * state upon a GPU hang involving this batch for post-mortem debugging. * These buffers are recorded in no particular order as "user" in * /sys/class/drm/cardN/error. Query I915_PARAM_HAS_EXEC_CAPTURE to see * if the kernel supports this flag. */ #define EXEC_OBJECT_CAPTURE (1<<7) /* All remaining bits are MBZ and RESERVED FOR FUTURE USE */ #define __EXEC_OBJECT_UNKNOWN_FLAGS -(EXEC_OBJECT_CAPTURE<<1) __u64 flags; union { __u64 rsvd1; __u64 pad_to_size; }; __u64 rsvd2; }; struct drm_i915_gem_exec_fence { /** * User's handle for a drm_syncobj to wait on or signal. */ __u32 handle; #define I915_EXEC_FENCE_WAIT (1<<0) #define I915_EXEC_FENCE_SIGNAL (1<<1) #define __I915_EXEC_FENCE_UNKNOWN_FLAGS (-(I915_EXEC_FENCE_SIGNAL << 1)) __u32 flags; }; 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 if I915_EXEC_FENCE_ARRAY * is not set. If I915_EXEC_FENCE_ARRAY is set, then this is a * struct drm_i915_gem_exec_fence *fences. */ __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) /* * Traditionally the execbuf ioctl has only considered the final element in * the execobject[] to be the executable batch. Often though, the client * will known the batch object prior to construction and being able to place * it into the execobject[] array first can simplify the relocation tracking. * Setting I915_EXEC_BATCH_FIRST tells execbuf to use element 0 of the * execobject[] as the * batch instead (the default is to use the last * element). */ #define I915_EXEC_BATCH_FIRST (1<<18) /* Setting I915_FENCE_ARRAY implies that num_cliprects and cliprects_ptr * define an array of i915_gem_exec_fence structures which specify a set of * dma fences to wait upon or signal. */ #define I915_EXEC_FENCE_ARRAY (1<<19) #define __I915_EXEC_UNKNOWN_FLAGS (-(I915_EXEC_FENCE_ARRAY<<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; /** * Cacheing level to apply or return value * * bits0-15 are for generic caching control (i.e. the above defined * values). bits16-31 are reserved for platform-specific variations * (e.g. l3$ caching on gen7). */ __u32 caching; }; #define I915_TILING_NONE 0 #define I915_TILING_X 1 #define I915_TILING_Y 2 #define I915_TILING_LAST I915_TILING_Y #define I915_BIT_6_SWIZZLE_NONE 0 #define I915_BIT_6_SWIZZLE_9 1 #define I915_BIT_6_SWIZZLE_9_10 2 #define I915_BIT_6_SWIZZLE_9_11 3 #define I915_BIT_6_SWIZZLE_9_10_11 4 /* Not seen by userland */ #define I915_BIT_6_SWIZZLE_UNKNOWN 5 /* Seen by userland. */ #define I915_BIT_6_SWIZZLE_9_17 6 #define I915_BIT_6_SWIZZLE_9_10_17 7 struct drm_i915_gem_set_tiling { /** Handle of the buffer to have its tiling state updated */ __u32 handle; /** * Tiling mode for the object (I915_TILING_NONE, I915_TILING_X, * I915_TILING_Y). * * This value is to be set on request, and will be updated by the * kernel on successful return with the actual chosen tiling layout. * * The tiling mode may be demoted to I915_TILING_NONE when the system * has bit 6 swizzling that can't be managed correctly by GEM. * * Buffer contents become undefined when changing tiling_mode. */ __u32 tiling_mode; /** * Stride in bytes for the object when in I915_TILING_X or * I915_TILING_Y. */ __u32 stride; /** * Returned address bit 6 swizzling required for CPU access through * mmap mapping. */ __u32 swizzle_mode; }; struct drm_i915_gem_get_tiling { /** Handle of the buffer to get tiling state for. */ __u32 handle; /** * Current tiling mode for the object (I915_TILING_NONE, I915_TILING_X, * I915_TILING_Y). */ __u32 tiling_mode; /** * Returned address bit 6 swizzling required for CPU access through * mmap mapping. */ __u32 swizzle_mode; /** * Returned address bit 6 swizzling required for CPU access through * mmap mapping whilst bound. */ __u32 phys_swizzle_mode; }; struct drm_i915_gem_get_aperture { /** Total size of the aperture used by i915_gem_execbuffer, in bytes */ __u64 aper_size; /** * Available space in the aperture used by i915_gem_execbuffer, in * bytes */ __u64 aper_available_size; }; struct drm_i915_get_pipe_from_crtc_id { /** ID of CRTC being requested **/ __u32 crtc_id; /** pipe of requested CRTC **/ __u32 pipe; }; #define I915_MADV_WILLNEED 0 #define I915_MADV_DONTNEED 1 #define __I915_MADV_PURGED 2 /* internal state */ struct drm_i915_gem_madvise { /** Handle of the buffer to change the backing store advice */ __u32 handle; /* Advice: either the buffer will be needed again in the near future, * or wont be and could be discarded under memory pressure. */ __u32 madv; /** Whether the backing store still exists. */ __u32 retained; }; /* flags */ #define I915_OVERLAY_TYPE_MASK 0xff #define I915_OVERLAY_YUV_PLANAR 0x01 #define I915_OVERLAY_YUV_PACKED 0x02 #define I915_OVERLAY_RGB 0x03 #define I915_OVERLAY_DEPTH_MASK 0xff00 #define I915_OVERLAY_RGB24 0x1000 #define I915_OVERLAY_RGB16 0x2000 #define I915_OVERLAY_RGB15 0x3000 #define I915_OVERLAY_YUV422 0x0100 #define I915_OVERLAY_YUV411 0x0200 #define I915_OVERLAY_YUV420 0x0300 #define I915_OVERLAY_YUV410 0x0400 #define I915_OVERLAY_SWAP_MASK 0xff0000 #define I915_OVERLAY_NO_SWAP 0x000000 #define I915_OVERLAY_UV_SWAP 0x010000 #define I915_OVERLAY_Y_SWAP 0x020000 #define I915_OVERLAY_Y_AND_UV_SWAP 0x030000 #define I915_OVERLAY_FLAGS_MASK 0xff000000 #define I915_OVERLAY_ENABLE 0x01000000 struct drm_intel_overlay_put_image { /* various flags and src format description */ __u32 flags; /* source picture description */ __u32 bo_handle; /* stride values and offsets are in bytes, buffer relative */ __u16 stride_Y; /* stride for packed formats */ __u16 stride_UV; __u32 offset_Y; /* offset for packet formats */ __u32 offset_U; __u32 offset_V; /* in pixels */ __u16 src_width; __u16 src_height; /* to compensate the scaling factors for partially covered surfaces */ __u16 src_scan_width; __u16 src_scan_height; /* output crtc description */ __u32 crtc_id; __u16 dst_x; __u16 dst_y; __u16 dst_width; __u16 dst_height; }; /* flags */ #define I915_OVERLAY_UPDATE_ATTRS (1<<0) #define I915_OVERLAY_UPDATE_GAMMA (1<<1) #define I915_OVERLAY_DISABLE_DEST_COLORKEY (1<<2) struct drm_intel_overlay_attrs { __u32 flags; __u32 color_key; __s32 brightness; __u32 contrast; __u32 saturation; __u32 gamma0; __u32 gamma1; __u32 gamma2; __u32 gamma3; __u32 gamma4; __u32 gamma5; }; /* * Intel sprite handling * * Color keying works with a min/mask/max tuple. Both source and destination * color keying is allowed. * * Source keying: * Sprite pixels within the min & max values, masked against the color channels * specified in the mask field, will be transparent. All other pixels will * be displayed on top of the primary plane. For RGB surfaces, only the min * and mask fields will be used; ranged compares are not allowed. * * Destination keying: * Primary plane pixels that match the min value, masked against the color * channels specified in the mask field, will be replaced by corresponding * pixels from the sprite plane. * * Note that source & destination keying are exclusive; only one can be * active on a given plane. */ #define I915_SET_COLORKEY_NONE (1<<0) /* Deprecated. Instead set * flags==0 to disable colorkeying. */ #define I915_SET_COLORKEY_DESTINATION (1<<1) #define I915_SET_COLORKEY_SOURCE (1<<2) struct drm_intel_sprite_colorkey { __u32 plane_id; __u32 min_value; __u32 channel_mask; __u32 max_value; __u32 flags; }; struct drm_i915_gem_wait { /** Handle of BO we shall wait on */ __u32 bo_handle; __u32 flags; /** Number of nanoseconds to wait, Returns time remaining. */ __s64 timeout_ns; }; struct drm_i915_gem_context_create { /* output: id of new context*/ __u32 ctx_id; __u32 pad; }; struct drm_i915_gem_context_destroy { __u32 ctx_id; __u32 pad; }; struct drm_i915_reg_read { /* * Register offset. * For 64bit wide registers where the upper 32bits don't immediately * follow the lower 32bits, the offset of the lower 32bits must * be specified */ __u64 offset; #define I915_REG_READ_8B_WA (1ul << 0) __u64 val; /* Return value */ }; /* Known registers: * * Render engine timestamp - 0x2358 + 64bit - gen7+ * - Note this register returns an invalid value if using the default * single instruction 8byte read, in order to workaround that pass * flag I915_REG_READ_8B_WA in offset field. * */ struct drm_i915_reset_stats { __u32 ctx_id; __u32 flags; /* All resets since boot/module reload, for all contexts */ __u32 reset_count; /* Number of batches lost when active in GPU, for this context */ __u32 batch_active; /* Number of batches lost pending for execution, for this context */ __u32 batch_pending; __u32 pad; }; struct drm_i915_gem_userptr { __u64 user_ptr; __u64 user_size; __u32 flags; #define I915_USERPTR_READ_ONLY 0x1 #define I915_USERPTR_UNSYNCHRONIZED 0x80000000 /** * Returned handle for the object. * * Object handles are nonzero. */ __u32 handle; }; struct drm_i915_gem_context_param { __u32 ctx_id; __u32 size; __u64 param; #define I915_CONTEXT_PARAM_BAN_PERIOD 0x1 #define I915_CONTEXT_PARAM_NO_ZEROMAP 0x2 #define I915_CONTEXT_PARAM_GTT_SIZE 0x3 #define I915_CONTEXT_PARAM_NO_ERROR_CAPTURE 0x4 #define I915_CONTEXT_PARAM_BANNABLE 0x5 #define I915_CONTEXT_PARAM_PRIORITY 0x6 #define I915_CONTEXT_MAX_USER_PRIORITY 1023 /* inclusive */ #define I915_CONTEXT_DEFAULT_PRIORITY 0 #define I915_CONTEXT_MIN_USER_PRIORITY -1023 /* inclusive */ __u64 value; }; enum drm_i915_oa_format { I915_OA_FORMAT_A13 = 1, /* HSW only */ I915_OA_FORMAT_A29, /* HSW only */ I915_OA_FORMAT_A13_B8_C8, /* HSW only */ I915_OA_FORMAT_B4_C8, /* HSW only */ I915_OA_FORMAT_A45_B8_C8, /* HSW only */ I915_OA_FORMAT_B4_C8_A16, /* HSW only */ I915_OA_FORMAT_C4_B8, /* HSW+ */ /* Gen8+ */ I915_OA_FORMAT_A12, I915_OA_FORMAT_A12_B8_C8, I915_OA_FORMAT_A32u40_A4u32_B8_C8, I915_OA_FORMAT_MAX /* non-ABI */ }; enum drm_i915_perf_property_id { /** * Open the stream for a specific context handle (as used with * execbuffer2). A stream opened for a specific context this way * won't typically require root privileges. */ DRM_I915_PERF_PROP_CTX_HANDLE = 1, /** * A value of 1 requests the inclusion of raw OA unit reports as * part of stream samples. */ DRM_I915_PERF_PROP_SAMPLE_OA, /** * The value specifies which set of OA unit metrics should be * be configured, defining the contents of any OA unit reports. */ DRM_I915_PERF_PROP_OA_METRICS_SET, /** * The value specifies the size and layout of OA unit reports. */ DRM_I915_PERF_PROP_OA_FORMAT, /** * Specifying this property implicitly requests periodic OA unit * sampling and (at least on Haswell) the sampling frequency is derived * from this exponent as follows: * * 80ns * 2^(period_exponent + 1) */ DRM_I915_PERF_PROP_OA_EXPONENT, DRM_I915_PERF_PROP_MAX /* non-ABI */ }; struct drm_i915_perf_open_param { __u32 flags; #define I915_PERF_FLAG_FD_CLOEXEC (1<<0) #define I915_PERF_FLAG_FD_NONBLOCK (1<<1) #define I915_PERF_FLAG_DISABLED (1<<2) /** The number of u64 (id, value) pairs */ __u32 num_properties; /** * Pointer to array of u64 (id, value) pairs configuring the stream * to open. */ __u64 properties_ptr; }; /** * Enable data capture for a stream that was either opened in a disabled state * via I915_PERF_FLAG_DISABLED or was later disabled via * I915_PERF_IOCTL_DISABLE. * * It is intended to be cheaper to disable and enable a stream than it may be * to close and re-open a stream with the same configuration. * * It's undefined whether any pending data for the stream will be lost. */ #define I915_PERF_IOCTL_ENABLE _IO('i', 0x0) /** * Disable data capture for a stream. * * It is an error to try and read a stream that is disabled. */ #define I915_PERF_IOCTL_DISABLE _IO('i', 0x1) /** * Common to all i915 perf records */ struct drm_i915_perf_record_header { __u32 type; __u16 pad; __u16 size; }; enum drm_i915_perf_record_type { /** * Samples are the work horse record type whose contents are extensible * and defined when opening an i915 perf stream based on the given * properties. * * Boolean properties following the naming convention * DRM_I915_PERF_SAMPLE_xyz_PROP request the inclusion of 'xyz' data in * every sample. * * The order of these sample properties given by userspace has no * affect on the ordering of data within a sample. The order is * documented here. * * struct { * struct drm_i915_perf_record_header header; * * { u32 oa_report[]; } && DRM_I915_PERF_PROP_SAMPLE_OA * }; */ DRM_I915_PERF_RECORD_SAMPLE = 1, /* * Indicates that one or more OA reports were not written by the * hardware. This can happen for example if an MI_REPORT_PERF_COUNT * command collides with periodic sampling - which would be more likely * at higher sampling frequencies. */ DRM_I915_PERF_RECORD_OA_REPORT_LOST = 2, /** * An error occurred that resulted in all pending OA reports being lost. */ DRM_I915_PERF_RECORD_OA_BUFFER_LOST = 3, DRM_I915_PERF_RECORD_MAX /* non-ABI */ }; /** * Structure to upload perf dynamic configuration into the kernel. */ struct drm_i915_perf_oa_config { /** String formatted like "%08x-%04x-%04x-%04x-%012x" */ char uuid[36]; __u32 n_mux_regs; __u32 n_boolean_regs; __u32 n_flex_regs; /* * These fields are pointers to tuples of u32 values (register address, * value). For example the expected length of the buffer pointed by * mux_regs_ptr is (2 * sizeof(u32) * n_mux_regs). */ __u64 mux_regs_ptr; __u64 boolean_regs_ptr; __u64 flex_regs_ptr; }; struct drm_i915_query_item { __u64 query_id; #define DRM_I915_QUERY_TOPOLOGY_INFO 1 /* * When set to zero by userspace, this is filled with the size of the * data to be written at the data_ptr pointer. The kernel sets this * value to a negative value to signal an error on a particular query * item. */ __s32 length; /* * Unused for now. Must be cleared to zero. */ __u32 flags; /* * Data will be written at the location pointed by data_ptr when the * value of length matches the length of the data to be written by the * kernel. */ __u64 data_ptr; }; struct drm_i915_query { __u32 num_items; /* * Unused for now. Must be cleared to zero. */ __u32 flags; /* * This points to an array of num_items drm_i915_query_item structures. */ __u64 items_ptr; }; /* * Data written by the kernel with query DRM_I915_QUERY_TOPOLOGY_INFO : * * data: contains the 3 pieces of information : * * - the slice mask with one bit per slice telling whether a slice is * available. The availability of slice X can be queried with the following * formula : * * (data[X / 8] >> (X % 8)) & 1 * * - the subslice mask for each slice with one bit per subslice telling * whether a subslice is available. The availability of subslice Y in slice * X can be queried with the following formula : * * (data[subslice_offset + * X * subslice_stride + * Y / 8] >> (Y % 8)) & 1 * * - the EU mask for each subslice in each slice with one bit per EU telling * whether an EU is available. The availability of EU Z in subslice Y in * slice X can be queried with the following formula : * * (data[eu_offset + * (X * max_subslices + Y) * eu_stride + * Z / 8] >> (Z % 8)) & 1 */ struct drm_i915_query_topology_info { /* * Unused for now. Must be cleared to zero. */ __u16 flags; __u16 max_slices; __u16 max_subslices; __u16 max_eus_per_subslice; /* * Offset in data[] at which the subslice masks are stored. */ __u16 subslice_offset; /* * Stride at which each of the subslice masks for each slice are * stored. */ __u16 subslice_stride; /* * Offset in data[] at which the EU masks are stored. */ __u16 eu_offset; /* * Stride at which each of the EU masks for each subslice are stored. */ __u16 eu_stride; __u8 data[]; }; #if defined(__cplusplus) } #endif #endif /* _I915_DRM_H_ */