383 lines
15 KiB
C
383 lines
15 KiB
C
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/*
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* Copyright (C) 2013 Red Hat
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* Author: Rob Clark <robdclark@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef __MSM_DRM_H__
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#define __MSM_DRM_H__
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#include "drm.h"
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#if defined(__cplusplus)
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extern "C" {
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#endif
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/* Please note that modifications to all structs defined here are
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* subject to backwards-compatibility constraints:
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* 1) Do not use pointers, use __u64 instead for 32 bit / 64 bit
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* user/kernel compatibility
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* 2) Keep fields aligned to their size
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* 3) Because of how drm_ioctl() works, we can add new fields at
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* the end of an ioctl if some care is taken: drm_ioctl() will
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* zero out the new fields at the tail of the ioctl, so a zero
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* value should have a backwards compatible meaning. And for
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* output params, userspace won't see the newly added output
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* fields.. so that has to be somehow ok.
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*/
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#define MSM_PIPE_NONE 0x00
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#define MSM_PIPE_2D0 0x01
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#define MSM_PIPE_2D1 0x02
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#define MSM_PIPE_3D0 0x10
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/* The pipe-id just uses the lower bits, so can be OR'd with flags in
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* the upper 16 bits (which could be extended further, if needed, maybe
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* we extend/overload the pipe-id some day to deal with multiple rings,
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* but even then I don't think we need the full lower 16 bits).
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*/
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#define MSM_PIPE_ID_MASK 0xffff
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#define MSM_PIPE_ID(x) ((x) & MSM_PIPE_ID_MASK)
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#define MSM_PIPE_FLAGS(x) ((x) & ~MSM_PIPE_ID_MASK)
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/* timeouts are specified in clock-monotonic absolute times (to simplify
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* restarting interrupted ioctls). The following struct is logically the
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* same as 'struct timespec' but 32/64b ABI safe.
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*/
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struct drm_msm_timespec {
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__s64 tv_sec; /* seconds */
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__s64 tv_nsec; /* nanoseconds */
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};
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/* Below "RO" indicates a read-only param, "WO" indicates write-only, and
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* "RW" indicates a param that can be both read (GET_PARAM) and written
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* (SET_PARAM)
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*/
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#define MSM_PARAM_GPU_ID 0x01 /* RO */
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#define MSM_PARAM_GMEM_SIZE 0x02 /* RO */
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#define MSM_PARAM_CHIP_ID 0x03 /* RO */
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#define MSM_PARAM_MAX_FREQ 0x04 /* RO */
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#define MSM_PARAM_TIMESTAMP 0x05 /* RO */
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#define MSM_PARAM_GMEM_BASE 0x06 /* RO */
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#define MSM_PARAM_PRIORITIES 0x07 /* RO: The # of priority levels */
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#define MSM_PARAM_PP_PGTABLE 0x08 /* RO: Deprecated, always returns zero */
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#define MSM_PARAM_FAULTS 0x09 /* RO */
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#define MSM_PARAM_SUSPENDS 0x0a /* RO */
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#define MSM_PARAM_SYSPROF 0x0b /* WO: 1 preserves perfcntrs, 2 also disables suspend */
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#define MSM_PARAM_COMM 0x0c /* WO: override for task->comm */
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#define MSM_PARAM_CMDLINE 0x0d /* WO: override for task cmdline */
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#define MSM_PARAM_VA_START 0x0e /* RO: start of valid GPU iova range */
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#define MSM_PARAM_VA_SIZE 0x0f /* RO: size of valid GPU iova range (bytes) */
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/* For backwards compat. The original support for preemption was based on
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* a single ring per priority level so # of priority levels equals the #
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* of rings. With drm/scheduler providing additional levels of priority,
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* the number of priorities is greater than the # of rings. The param is
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* renamed to better reflect this.
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*/
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#define MSM_PARAM_NR_RINGS MSM_PARAM_PRIORITIES
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struct drm_msm_param {
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__u32 pipe; /* in, MSM_PIPE_x */
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__u32 param; /* in, MSM_PARAM_x */
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__u64 value; /* out (get_param) or in (set_param) */
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__u32 len; /* zero for non-pointer params */
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__u32 pad; /* must be zero */
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};
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/*
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* GEM buffers:
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*/
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#define MSM_BO_SCANOUT 0x00000001 /* scanout capable */
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#define MSM_BO_GPU_READONLY 0x00000002
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#define MSM_BO_CACHE_MASK 0x000f0000
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/* cache modes */
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#define MSM_BO_CACHED 0x00010000
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#define MSM_BO_WC 0x00020000
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#define MSM_BO_UNCACHED 0x00040000 /* deprecated, use MSM_BO_WC */
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#define MSM_BO_CACHED_COHERENT 0x080000
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#define MSM_BO_FLAGS (MSM_BO_SCANOUT | \
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MSM_BO_GPU_READONLY | \
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MSM_BO_CACHE_MASK)
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struct drm_msm_gem_new {
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__u64 size; /* in */
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__u32 flags; /* in, mask of MSM_BO_x */
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__u32 handle; /* out */
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};
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/* Get or set GEM buffer info. The requested value can be passed
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* directly in 'value', or for data larger than 64b 'value' is a
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* pointer to userspace buffer, with 'len' specifying the number of
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* bytes copied into that buffer. For info returned by pointer,
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* calling the GEM_INFO ioctl with null 'value' will return the
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* required buffer size in 'len'
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*/
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#define MSM_INFO_GET_OFFSET 0x00 /* get mmap() offset, returned by value */
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#define MSM_INFO_GET_IOVA 0x01 /* get iova, returned by value */
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#define MSM_INFO_SET_NAME 0x02 /* set the debug name (by pointer) */
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#define MSM_INFO_GET_NAME 0x03 /* get debug name, returned by pointer */
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#define MSM_INFO_SET_IOVA 0x04 /* set the iova, passed by value */
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struct drm_msm_gem_info {
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__u32 handle; /* in */
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__u32 info; /* in - one of MSM_INFO_* */
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__u64 value; /* in or out */
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__u32 len; /* in or out */
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__u32 pad;
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};
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#define MSM_PREP_READ 0x01
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#define MSM_PREP_WRITE 0x02
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#define MSM_PREP_NOSYNC 0x04
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#define MSM_PREP_FLAGS (MSM_PREP_READ | MSM_PREP_WRITE | MSM_PREP_NOSYNC)
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struct drm_msm_gem_cpu_prep {
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__u32 handle; /* in */
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__u32 op; /* in, mask of MSM_PREP_x */
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struct drm_msm_timespec timeout; /* in */
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};
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struct drm_msm_gem_cpu_fini {
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__u32 handle; /* in */
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};
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/*
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* Cmdstream Submission:
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*/
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/* The value written into the cmdstream is logically:
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*
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* ((relocbuf->gpuaddr + reloc_offset) << shift) | or
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*
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* When we have GPU's w/ >32bit ptrs, it should be possible to deal
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* with this by emit'ing two reloc entries with appropriate shift
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* values. Or a new MSM_SUBMIT_CMD_x type would also be an option.
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*
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* NOTE that reloc's must be sorted by order of increasing submit_offset,
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* otherwise EINVAL.
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*/
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struct drm_msm_gem_submit_reloc {
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__u32 submit_offset; /* in, offset from submit_bo */
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__u32 or; /* in, value OR'd with result */
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__s32 shift; /* in, amount of left shift (can be negative) */
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__u32 reloc_idx; /* in, index of reloc_bo buffer */
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__u64 reloc_offset; /* in, offset from start of reloc_bo */
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};
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/* submit-types:
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* BUF - this cmd buffer is executed normally.
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* IB_TARGET_BUF - this cmd buffer is an IB target. Reloc's are
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* processed normally, but the kernel does not setup an IB to
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* this buffer in the first-level ringbuffer
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* CTX_RESTORE_BUF - only executed if there has been a GPU context
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* switch since the last SUBMIT ioctl
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*/
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#define MSM_SUBMIT_CMD_BUF 0x0001
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#define MSM_SUBMIT_CMD_IB_TARGET_BUF 0x0002
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#define MSM_SUBMIT_CMD_CTX_RESTORE_BUF 0x0003
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struct drm_msm_gem_submit_cmd {
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__u32 type; /* in, one of MSM_SUBMIT_CMD_x */
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__u32 submit_idx; /* in, index of submit_bo cmdstream buffer */
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__u32 submit_offset; /* in, offset into submit_bo */
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__u32 size; /* in, cmdstream size */
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__u32 pad;
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__u32 nr_relocs; /* in, number of submit_reloc's */
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__u64 relocs; /* in, ptr to array of submit_reloc's */
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};
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/* Each buffer referenced elsewhere in the cmdstream submit (ie. the
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* cmdstream buffer(s) themselves or reloc entries) has one (and only
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* one) entry in the submit->bos[] table.
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*
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* As a optimization, the current buffer (gpu virtual address) can be
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* passed back through the 'presumed' field. If on a subsequent reloc,
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* userspace passes back a 'presumed' address that is still valid,
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* then patching the cmdstream for this entry is skipped. This can
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* avoid kernel needing to map/access the cmdstream bo in the common
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* case.
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*/
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#define MSM_SUBMIT_BO_READ 0x0001
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#define MSM_SUBMIT_BO_WRITE 0x0002
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#define MSM_SUBMIT_BO_DUMP 0x0004
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#define MSM_SUBMIT_BO_FLAGS (MSM_SUBMIT_BO_READ | \
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MSM_SUBMIT_BO_WRITE | \
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MSM_SUBMIT_BO_DUMP)
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struct drm_msm_gem_submit_bo {
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__u32 flags; /* in, mask of MSM_SUBMIT_BO_x */
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__u32 handle; /* in, GEM handle */
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__u64 presumed; /* in/out, presumed buffer address */
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};
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/* Valid submit ioctl flags: */
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#define MSM_SUBMIT_NO_IMPLICIT 0x80000000 /* disable implicit sync */
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#define MSM_SUBMIT_FENCE_FD_IN 0x40000000 /* enable input fence_fd */
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#define MSM_SUBMIT_FENCE_FD_OUT 0x20000000 /* enable output fence_fd */
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#define MSM_SUBMIT_SUDO 0x10000000 /* run submitted cmds from RB */
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#define MSM_SUBMIT_SYNCOBJ_IN 0x08000000 /* enable input syncobj */
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#define MSM_SUBMIT_SYNCOBJ_OUT 0x04000000 /* enable output syncobj */
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#define MSM_SUBMIT_FENCE_SN_IN 0x02000000 /* userspace passes in seqno fence */
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#define MSM_SUBMIT_FLAGS ( \
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MSM_SUBMIT_NO_IMPLICIT | \
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MSM_SUBMIT_FENCE_FD_IN | \
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MSM_SUBMIT_FENCE_FD_OUT | \
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MSM_SUBMIT_SUDO | \
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MSM_SUBMIT_SYNCOBJ_IN | \
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MSM_SUBMIT_SYNCOBJ_OUT | \
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MSM_SUBMIT_FENCE_SN_IN | \
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0)
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#define MSM_SUBMIT_SYNCOBJ_RESET 0x00000001 /* Reset syncobj after wait. */
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#define MSM_SUBMIT_SYNCOBJ_FLAGS ( \
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MSM_SUBMIT_SYNCOBJ_RESET | \
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0)
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struct drm_msm_gem_submit_syncobj {
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__u32 handle; /* in, syncobj handle. */
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__u32 flags; /* in, from MSM_SUBMIT_SYNCOBJ_FLAGS */
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__u64 point; /* in, timepoint for timeline syncobjs. */
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};
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/* Each cmdstream submit consists of a table of buffers involved, and
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* one or more cmdstream buffers. This allows for conditional execution
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* (context-restore), and IB buffers needed for per tile/bin draw cmds.
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*/
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struct drm_msm_gem_submit {
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__u32 flags; /* MSM_PIPE_x | MSM_SUBMIT_x */
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__u32 fence; /* out (or in with MSM_SUBMIT_FENCE_SN_IN flag) */
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__u32 nr_bos; /* in, number of submit_bo's */
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__u32 nr_cmds; /* in, number of submit_cmd's */
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__u64 bos; /* in, ptr to array of submit_bo's */
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__u64 cmds; /* in, ptr to array of submit_cmd's */
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__s32 fence_fd; /* in/out fence fd (see MSM_SUBMIT_FENCE_FD_IN/OUT) */
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__u32 queueid; /* in, submitqueue id */
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__u64 in_syncobjs; /* in, ptr to array of drm_msm_gem_submit_syncobj */
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__u64 out_syncobjs; /* in, ptr to array of drm_msm_gem_submit_syncobj */
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__u32 nr_in_syncobjs; /* in, number of entries in in_syncobj */
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__u32 nr_out_syncobjs; /* in, number of entries in out_syncobj. */
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__u32 syncobj_stride; /* in, stride of syncobj arrays. */
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__u32 pad; /*in, reserved for future use, always 0. */
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};
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/* The normal way to synchronize with the GPU is just to CPU_PREP on
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* a buffer if you need to access it from the CPU (other cmdstream
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* submission from same or other contexts, PAGE_FLIP ioctl, etc, all
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* handle the required synchronization under the hood). This ioctl
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* mainly just exists as a way to implement the gallium pipe_fence
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* APIs without requiring a dummy bo to synchronize on.
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*/
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struct drm_msm_wait_fence {
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__u32 fence; /* in */
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__u32 pad;
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struct drm_msm_timespec timeout; /* in */
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__u32 queueid; /* in, submitqueue id */
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};
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/* madvise provides a way to tell the kernel in case a buffers contents
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* can be discarded under memory pressure, which is useful for userspace
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* bo cache where we want to optimistically hold on to buffer allocate
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* and potential mmap, but allow the pages to be discarded under memory
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* pressure.
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*
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* Typical usage would involve madvise(DONTNEED) when buffer enters BO
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* cache, and madvise(WILLNEED) if trying to recycle buffer from BO cache.
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* In the WILLNEED case, 'retained' indicates to userspace whether the
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* backing pages still exist.
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*/
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#define MSM_MADV_WILLNEED 0 /* backing pages are needed, status returned in 'retained' */
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#define MSM_MADV_DONTNEED 1 /* backing pages not needed */
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#define __MSM_MADV_PURGED 2 /* internal state */
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struct drm_msm_gem_madvise {
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__u32 handle; /* in, GEM handle */
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__u32 madv; /* in, MSM_MADV_x */
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__u32 retained; /* out, whether backing store still exists */
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};
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/*
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* Draw queues allow the user to set specific submission parameter. Command
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* submissions specify a specific submitqueue to use. ID 0 is reserved for
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* backwards compatibility as a "default" submitqueue
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||
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*/
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||
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#define MSM_SUBMITQUEUE_FLAGS (0)
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||
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/*
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||
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* The submitqueue priority should be between 0 and MSM_PARAM_PRIORITIES-1,
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||
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* a lower numeric value is higher priority.
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||
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*/
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||
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struct drm_msm_submitqueue {
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||
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__u32 flags; /* in, MSM_SUBMITQUEUE_x */
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||
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__u32 prio; /* in, Priority level */
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||
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|
__u32 id; /* out, identifier */
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||
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};
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||
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||
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#define MSM_SUBMITQUEUE_PARAM_FAULTS 0
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||
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||
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struct drm_msm_submitqueue_query {
|
||
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__u64 data;
|
||
|
|
__u32 id;
|
||
|
|
__u32 param;
|
||
|
|
__u32 len;
|
||
|
|
__u32 pad;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define DRM_MSM_GET_PARAM 0x00
|
||
|
|
#define DRM_MSM_SET_PARAM 0x01
|
||
|
|
#define DRM_MSM_GEM_NEW 0x02
|
||
|
|
#define DRM_MSM_GEM_INFO 0x03
|
||
|
|
#define DRM_MSM_GEM_CPU_PREP 0x04
|
||
|
|
#define DRM_MSM_GEM_CPU_FINI 0x05
|
||
|
|
#define DRM_MSM_GEM_SUBMIT 0x06
|
||
|
|
#define DRM_MSM_WAIT_FENCE 0x07
|
||
|
|
#define DRM_MSM_GEM_MADVISE 0x08
|
||
|
|
/* placeholder:
|
||
|
|
#define DRM_MSM_GEM_SVM_NEW 0x09
|
||
|
|
*/
|
||
|
|
#define DRM_MSM_SUBMITQUEUE_NEW 0x0A
|
||
|
|
#define DRM_MSM_SUBMITQUEUE_CLOSE 0x0B
|
||
|
|
#define DRM_MSM_SUBMITQUEUE_QUERY 0x0C
|
||
|
|
|
||
|
|
#define DRM_IOCTL_MSM_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GET_PARAM, struct drm_msm_param)
|
||
|
|
#define DRM_IOCTL_MSM_SET_PARAM DRM_IOW (DRM_COMMAND_BASE + DRM_MSM_SET_PARAM, struct drm_msm_param)
|
||
|
|
#define DRM_IOCTL_MSM_GEM_NEW DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GEM_NEW, struct drm_msm_gem_new)
|
||
|
|
#define DRM_IOCTL_MSM_GEM_INFO DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GEM_INFO, struct drm_msm_gem_info)
|
||
|
|
#define DRM_IOCTL_MSM_GEM_CPU_PREP DRM_IOW (DRM_COMMAND_BASE + DRM_MSM_GEM_CPU_PREP, struct drm_msm_gem_cpu_prep)
|
||
|
|
#define DRM_IOCTL_MSM_GEM_CPU_FINI DRM_IOW (DRM_COMMAND_BASE + DRM_MSM_GEM_CPU_FINI, struct drm_msm_gem_cpu_fini)
|
||
|
|
#define DRM_IOCTL_MSM_GEM_SUBMIT DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GEM_SUBMIT, struct drm_msm_gem_submit)
|
||
|
|
#define DRM_IOCTL_MSM_WAIT_FENCE DRM_IOW (DRM_COMMAND_BASE + DRM_MSM_WAIT_FENCE, struct drm_msm_wait_fence)
|
||
|
|
#define DRM_IOCTL_MSM_GEM_MADVISE DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GEM_MADVISE, struct drm_msm_gem_madvise)
|
||
|
|
#define DRM_IOCTL_MSM_SUBMITQUEUE_NEW DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_SUBMITQUEUE_NEW, struct drm_msm_submitqueue)
|
||
|
|
#define DRM_IOCTL_MSM_SUBMITQUEUE_CLOSE DRM_IOW (DRM_COMMAND_BASE + DRM_MSM_SUBMITQUEUE_CLOSE, __u32)
|
||
|
|
#define DRM_IOCTL_MSM_SUBMITQUEUE_QUERY DRM_IOW (DRM_COMMAND_BASE + DRM_MSM_SUBMITQUEUE_QUERY, struct drm_msm_submitqueue_query)
|
||
|
|
|
||
|
|
#if defined(__cplusplus)
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* __MSM_DRM_H__ */
|