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/*
 * Copyright (C) 2012-2018 Rob Clark <robclark@freedesktop.org>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * Authors:
 *    Rob Clark <robclark@freedesktop.org>
 */

#ifndef MSM_PRIV_H_
#define MSM_PRIV_H_

#include "freedreno_priv.h"

#include "util/slab.h"

#ifndef __user
#  define __user
#endif

#include "drm-uapi/msm_drm.h"

struct msm_device {
	struct fd_device base;
	struct fd_bo_cache ring_cache;
};
FD_DEFINE_CAST(fd_device, msm_device);

struct fd_device * msm_device_new(int fd);

struct msm_pipe {
	struct fd_pipe base;
	uint32_t pipe;
	uint32_t gpu_id;
	uint64_t gmem_base;
	uint32_t gmem;
	uint32_t chip_id;
	uint32_t queue_id;
	struct slab_parent_pool ring_pool;
};
FD_DEFINE_CAST(fd_pipe, msm_pipe);

struct fd_pipe * msm_pipe_new(struct fd_device *dev,
		enum fd_pipe_id id, uint32_t prio);

struct fd_ringbuffer * msm_ringbuffer_new_object(struct fd_pipe *pipe, uint32_t size);
struct fd_ringbuffer * msm_ringbuffer_sp_new_object(struct fd_pipe *pipe, uint32_t size);

struct fd_submit * msm_submit_new(struct fd_pipe *pipe);
struct fd_submit * msm_submit_sp_new(struct fd_pipe *pipe);

void msm_pipe_sp_ringpool_init(struct msm_pipe *msm_pipe);
void msm_pipe_sp_ringpool_fini(struct msm_pipe *msm_pipe);


struct msm_bo {
	struct fd_bo base;
	uint64_t offset;
	uint32_t idx;
};
FD_DEFINE_CAST(fd_bo, msm_bo);

int msm_bo_new_handle(struct fd_device *dev,
		uint32_t size, uint32_t flags, uint32_t *handle);
struct fd_bo * msm_bo_from_handle(struct fd_device *dev,
		uint32_t size, uint32_t handle);

static inline void
msm_dump_submit(struct drm_msm_gem_submit *req)
{
	for (unsigned i = 0; i < req->nr_bos; i++) {
		struct drm_msm_gem_submit_bo *bos = U642VOID(req->bos);
		struct drm_msm_gem_submit_bo *bo = &bos[i];
		ERROR_MSG("  bos[%d]: handle=%u, flags=%x", i, bo->handle, bo->flags);
	}
	for (unsigned i = 0; i < req->nr_cmds; i++) {
		struct drm_msm_gem_submit_cmd *cmds = U642VOID(req->cmds);
		struct drm_msm_gem_submit_cmd *cmd = &cmds[i];
		struct drm_msm_gem_submit_reloc *relocs = U642VOID(cmd->relocs);
		ERROR_MSG("  cmd[%d]: type=%u, submit_idx=%u, submit_offset=%u, size=%u",
				i, cmd->type, cmd->submit_idx, cmd->submit_offset, cmd->size);
		for (unsigned j = 0; j < cmd->nr_relocs; j++) {
			struct drm_msm_gem_submit_reloc *r = &relocs[j];
			ERROR_MSG("    reloc[%d]: submit_offset=%u, or=%08x, shift=%d, reloc_idx=%u"
					", reloc_offset=%"PRIu64, j, r->submit_offset, r->or, r->shift,
					r->reloc_idx, (uint64_t)r->reloc_offset);
		}
	}
}

static inline void get_abs_timeout(struct drm_msm_timespec *tv, uint64_t ns)
{
	struct timespec t;
	uint32_t s = ns / 1000000000;
	clock_gettime(CLOCK_MONOTONIC, &t);
	tv->tv_sec = t.tv_sec + s;
	tv->tv_nsec = t.tv_nsec + ns - (s * 1000000000);
}

/*
 * Stupid/simple growable array implementation:
 */

static inline void *
grow(void *ptr, uint16_t nr, uint16_t *max, uint16_t sz)
{
	if ((nr + 1) > *max) {
		if ((*max * 2) < (nr + 1))
			*max = nr + 5;
		else
			*max = *max * 2;
		ptr = realloc(ptr, *max * sz);
	}
	return ptr;
}

#define DECLARE_ARRAY(type, name) \
	unsigned short nr_ ## name, max_ ## name; \
	type * name;

#define APPEND(x, name) ({ \
	(x)->name = grow((x)->name, (x)->nr_ ## name, &(x)->max_ ## name, sizeof((x)->name[0])); \
	(x)->nr_ ## name ++; \
})

#define READ_ONCE(x) (*(volatile __typeof__(x) *)&(x))

#endif /* MSM_PRIV_H_ */