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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>
*/
#include "util/slab.h"
#include "msm_priv.h"
static int query_param(struct fd_pipe *pipe, uint32_t param,
uint64_t *value)
{
struct msm_pipe *msm_pipe = to_msm_pipe(pipe);
struct drm_msm_param req = {
.pipe = msm_pipe->pipe,
.param = param,
};
int ret;
ret = drmCommandWriteRead(pipe->dev->fd, DRM_MSM_GET_PARAM,
&req, sizeof(req));
if (ret)
return ret;
*value = req.value;
return 0;
}
static int msm_pipe_get_param(struct fd_pipe *pipe,
enum fd_param_id param, uint64_t *value)
{
struct msm_pipe *msm_pipe = to_msm_pipe(pipe);
switch(param) {
case FD_DEVICE_ID: // XXX probably get rid of this..
case FD_GPU_ID:
*value = msm_pipe->gpu_id;
return 0;
case FD_GMEM_SIZE:
*value = msm_pipe->gmem;
return 0;
case FD_CHIP_ID:
*value = msm_pipe->chip_id;
return 0;
case FD_MAX_FREQ:
return query_param(pipe, MSM_PARAM_MAX_FREQ, value);
case FD_TIMESTAMP:
return query_param(pipe, MSM_PARAM_TIMESTAMP, value);
case FD_NR_RINGS:
return query_param(pipe, MSM_PARAM_NR_RINGS, value);
default:
ERROR_MSG("invalid param id: %d", param);
return -1;
}
}
static int msm_pipe_wait(struct fd_pipe *pipe, uint32_t timestamp,
uint64_t timeout)
{
struct fd_device *dev = pipe->dev;
struct drm_msm_wait_fence req = {
.fence = timestamp,
.queueid = to_msm_pipe(pipe)->queue_id,
};
int ret;
get_abs_timeout(&req.timeout, timeout);
ret = drmCommandWrite(dev->fd, DRM_MSM_WAIT_FENCE, &req, sizeof(req));
if (ret) {
ERROR_MSG("wait-fence failed! %d (%s)", ret, strerror(errno));
return ret;
}
return 0;
}
static int open_submitqueue(struct fd_pipe *pipe, uint32_t prio)
{
struct drm_msm_submitqueue req = {
.flags = 0,
.prio = prio,
};
uint64_t nr_rings = 1;
int ret;
if (fd_device_version(pipe->dev) < FD_VERSION_SUBMIT_QUEUES) {
to_msm_pipe(pipe)->queue_id = 0;
return 0;
}
msm_pipe_get_param(pipe, FD_NR_RINGS, &nr_rings);
req.prio = MIN2(req.prio, MAX2(nr_rings, 1) - 1);
ret = drmCommandWriteRead(pipe->dev->fd, DRM_MSM_SUBMITQUEUE_NEW,
&req, sizeof(req));
if (ret) {
ERROR_MSG("could not create submitqueue! %d (%s)", ret, strerror(errno));
return ret;
}
to_msm_pipe(pipe)->queue_id = req.id;
return 0;
}
static void close_submitqueue(struct fd_pipe *pipe, uint32_t queue_id)
{
if (fd_device_version(pipe->dev) < FD_VERSION_SUBMIT_QUEUES)
return;
drmCommandWrite(pipe->dev->fd, DRM_MSM_SUBMITQUEUE_CLOSE,
&queue_id, sizeof(queue_id));
}
static void msm_pipe_destroy(struct fd_pipe *pipe)
{
struct msm_pipe *msm_pipe = to_msm_pipe(pipe);
close_submitqueue(pipe, msm_pipe->queue_id);
free(msm_pipe);
}
static const struct fd_pipe_funcs sp_funcs = {
.ringbuffer_new_object = msm_ringbuffer_sp_new_object,
.submit_new = msm_submit_sp_new,
.get_param = msm_pipe_get_param,
.wait = msm_pipe_wait,
.destroy = msm_pipe_destroy,
};
static const struct fd_pipe_funcs legacy_funcs = {
.ringbuffer_new_object = msm_ringbuffer_new_object,
.submit_new = msm_submit_new,
.get_param = msm_pipe_get_param,
.wait = msm_pipe_wait,
.destroy = msm_pipe_destroy,
};
static uint64_t get_param(struct fd_pipe *pipe, uint32_t param)
{
uint64_t value;
int ret = query_param(pipe, param, &value);
if (ret) {
ERROR_MSG("get-param failed! %d (%s)", ret, strerror(errno));
return 0;
}
return value;
}
static bool use_softpin(void)
{
static int sp = -1;
if (sp < 0) {
const char *str = getenv("FD_MESA_DEBUG");
sp = str && strstr(str, "softpin");
}
return sp;
}
struct fd_pipe * msm_pipe_new(struct fd_device *dev,
enum fd_pipe_id id, uint32_t prio)
{
static const uint32_t pipe_id[] = {
[FD_PIPE_3D] = MSM_PIPE_3D0,
[FD_PIPE_2D] = MSM_PIPE_2D0,
};
struct msm_pipe *msm_pipe = NULL;
struct fd_pipe *pipe = NULL;
msm_pipe = calloc(1, sizeof(*msm_pipe));
if (!msm_pipe) {
ERROR_MSG("allocation failed");
goto fail;
}
pipe = &msm_pipe->base;
// TODO once kernel changes are in place, this switch will be
// based on kernel version:
if (use_softpin()) {
pipe->funcs = &sp_funcs;
} else {
pipe->funcs = &legacy_funcs;
}
/* initialize before get_param(): */
pipe->dev = dev;
msm_pipe->pipe = pipe_id[id];
/* these params should be supported since the first version of drm/msm: */
msm_pipe->gpu_id = get_param(pipe, MSM_PARAM_GPU_ID);
msm_pipe->gmem = get_param(pipe, MSM_PARAM_GMEM_SIZE);
msm_pipe->chip_id = get_param(pipe, MSM_PARAM_CHIP_ID);
if (! msm_pipe->gpu_id)
goto fail;
INFO_MSG("Pipe Info:");
INFO_MSG(" GPU-id: %d", msm_pipe->gpu_id);
INFO_MSG(" Chip-id: 0x%08x", msm_pipe->chip_id);
INFO_MSG(" GMEM size: 0x%08x", msm_pipe->gmem);
if (open_submitqueue(pipe, prio))
goto fail;
return pipe;
fail:
if (pipe)
fd_pipe_del(pipe);
return NULL;
}
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