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/*
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __MSM_DRM_H__
#define __MSM_DRM_H__
#include <stddef.h>
#include "drm.h"
/* Please note that modifications to all structs defined here are
* subject to backwards-compatibility constraints:
* 1) Do not use pointers, use uint64_t instead for 32 bit / 64 bit
* user/kernel compatibility
* 2) Keep fields aligned to their size
* 3) Because of how drm_ioctl() works, we can add new fields at
* the end of an ioctl if some care is taken: drm_ioctl() will
* zero out the new fields at the tail of the ioctl, so a zero
* value should have a backwards compatible meaning. And for
* output params, userspace won't see the newly added output
* fields.. so that has to be somehow ok.
*/
#define MSM_PIPE_NONE 0x00
#define MSM_PIPE_2D0 0x01
#define MSM_PIPE_2D1 0x02
#define MSM_PIPE_3D0 0x10
/* timeouts are specified in clock-monotonic absolute times (to simplify
* restarting interrupted ioctls). The following struct is logically the
* same as 'struct timespec' but 32/64b ABI safe.
*/
struct drm_msm_timespec {
int64_t tv_sec; /* seconds */
int64_t tv_nsec; /* nanoseconds */
};
#define MSM_PARAM_GPU_ID 0x01
#define MSM_PARAM_GMEM_SIZE 0x02
struct drm_msm_param {
uint32_t pipe; /* in, MSM_PIPE_x */
uint32_t param; /* in, MSM_PARAM_x */
uint64_t value; /* out (get_param) or in (set_param) */
};
/*
* GEM buffers:
*/
#define MSM_BO_SCANOUT 0x00000001 /* scanout capable */
#define MSM_BO_GPU_READONLY 0x00000002
#define MSM_BO_CACHE_MASK 0x000f0000
/* cache modes */
#define MSM_BO_CACHED 0x00010000
#define MSM_BO_WC 0x00020000
#define MSM_BO_UNCACHED 0x00040000
struct drm_msm_gem_new {
uint64_t size; /* in */
uint32_t flags; /* in, mask of MSM_BO_x */
uint32_t handle; /* out */
};
struct drm_msm_gem_info {
uint32_t handle; /* in */
uint32_t pad;
uint64_t offset; /* out, offset to pass to mmap() */
};
#define MSM_PREP_READ 0x01
#define MSM_PREP_WRITE 0x02
#define MSM_PREP_NOSYNC 0x04
struct drm_msm_gem_cpu_prep {
uint32_t handle; /* in */
uint32_t op; /* in, mask of MSM_PREP_x */
struct drm_msm_timespec timeout; /* in */
};
struct drm_msm_gem_cpu_fini {
uint32_t handle; /* in */
};
/*
* Cmdstream Submission:
*/
/* The value written into the cmdstream is logically:
*
* ((relocbuf->gpuaddr + reloc_offset) << shift) | or
*
* When we have GPU's w/ >32bit ptrs, it should be possible to deal
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