freedreno: add support for msm drm
This adds support for the "msm" backend, using the upstream msm drm/kms driver. Signed-off-by: Rob Clark <robclark@freedesktop.org>main
Rob Clark
parent
b2b1885dfc
commit
f17d417e28
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@ -23,6 +23,12 @@ libdrm_freedreno_la_SOURCES = \
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kgsl/kgsl_priv.h \
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kgsl/kgsl_priv.h \
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kgsl/kgsl_ringbuffer.c \
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kgsl/kgsl_ringbuffer.c \
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kgsl/msm_kgsl.h \
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kgsl/msm_kgsl.h \
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msm/msm_bo.c \
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msm/msm_device.c \
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msm/msm_drm.h \
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msm/msm_pipe.c \
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msm/msm_priv.h \
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msm/msm_ringbuffer.c \
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list.h
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list.h
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libdrm_freedrenocommonincludedir = ${includedir}/freedreno
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libdrm_freedrenocommonincludedir = ${includedir}/freedreno
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@ -37,6 +37,7 @@ static pthread_mutex_t table_lock = PTHREAD_MUTEX_INITIALIZER;
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static void * dev_table;
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static void * dev_table;
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struct fd_device * kgsl_device_new(int fd);
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struct fd_device * kgsl_device_new(int fd);
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struct fd_device * msm_device_new(int fd);
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static struct fd_device * fd_device_new_impl(int fd)
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static struct fd_device * fd_device_new_impl(int fd)
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{
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{
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@ -53,6 +54,9 @@ static struct fd_device * fd_device_new_impl(int fd)
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if (!strcmp(version->name, "kgsl")) {
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if (!strcmp(version->name, "kgsl")) {
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DEBUG_MSG("kgsl DRM device");
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DEBUG_MSG("kgsl DRM device");
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dev = kgsl_device_new(fd);
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dev = kgsl_device_new(fd);
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} else if (!strcmp(version->name, "msm")) {
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DEBUG_MSG("msm DRM device");
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dev = msm_device_new(fd);
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} else {
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} else {
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ERROR_MSG("unknown device: %s", version->name);
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ERROR_MSG("unknown device: %s", version->name);
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dev = NULL;
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dev = NULL;
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@ -128,7 +128,7 @@ struct fd_bo *fd_bo_from_handle(struct fd_device *dev,
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#define ALIGN(v,a) (((v) + (a) - 1) & ~((a) - 1))
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#define ALIGN(v,a) (((v) + (a) - 1) & ~((a) - 1))
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#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
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#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
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#define enable_debug 1 /* TODO make dynamic */
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#define enable_debug 0 /* TODO make dynamic */
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#define INFO_MSG(fmt, ...) \
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#define INFO_MSG(fmt, ...) \
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do { drmMsg("[I] "fmt " (%s:%d)\n", \
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do { drmMsg("[I] "fmt " (%s:%d)\n", \
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@ -0,0 +1,141 @@
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/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
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/*
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* Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
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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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* Authors:
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* Rob Clark <robclark@freedesktop.org>
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*/
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#include "msm_priv.h"
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static int bo_allocate(struct msm_bo *msm_bo)
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{
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struct fd_bo *bo = &msm_bo->base;
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if (!msm_bo->offset) {
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struct drm_msm_gem_info req = {
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.handle = bo->handle,
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};
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int ret;
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/* if the buffer is already backed by pages then this
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* doesn't actually do anything (other than giving us
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* the offset)
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*/
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ret = drmCommandWriteRead(bo->dev->fd, DRM_MSM_GEM_INFO,
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&req, sizeof(req));
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if (ret) {
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ERROR_MSG("alloc failed: %s", strerror(errno));
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return ret;
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}
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msm_bo->offset = req.offset;
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}
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return 0;
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}
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static int msm_bo_offset(struct fd_bo *bo, uint64_t *offset)
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{
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struct msm_bo *msm_bo = to_msm_bo(bo);
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int ret = bo_allocate(msm_bo);
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if (ret)
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return ret;
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*offset = msm_bo->offset;
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return 0;
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}
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static int msm_bo_cpu_prep(struct fd_bo *bo, struct fd_pipe *pipe, uint32_t op)
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{
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struct drm_msm_gem_cpu_prep req = {
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.handle = bo->handle,
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.op = op,
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};
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get_abs_timeout(&req.timeout, 5000);
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return drmCommandWrite(bo->dev->fd, DRM_MSM_GEM_CPU_PREP, &req, sizeof(req));
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}
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static void msm_bo_cpu_fini(struct fd_bo *bo)
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{
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struct drm_msm_gem_cpu_fini req = {
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.handle = bo->handle,
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};
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drmCommandWrite(bo->dev->fd, DRM_MSM_GEM_CPU_FINI, &req, sizeof(req));
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}
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static void msm_bo_destroy(struct fd_bo *bo)
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{
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struct msm_bo *msm_bo = to_msm_bo(bo);
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free(msm_bo);
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}
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static struct fd_bo_funcs funcs = {
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.offset = msm_bo_offset,
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.cpu_prep = msm_bo_cpu_prep,
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.cpu_fini = msm_bo_cpu_fini,
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.destroy = msm_bo_destroy,
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};
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/* allocate a buffer handle: */
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int msm_bo_new_handle(struct fd_device *dev,
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uint32_t size, uint32_t flags, uint32_t *handle)
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{
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struct drm_msm_gem_new req = {
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.size = size,
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.flags = MSM_BO_WC, // TODO figure out proper flags..
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};
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int ret;
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ret = drmCommandWriteRead(dev->fd, DRM_MSM_GEM_NEW,
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&req, sizeof(req));
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if (ret)
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return ret;
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*handle = req.handle;
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return 0;
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}
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/* allocate a new buffer object */
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struct fd_bo * msm_bo_from_handle(struct fd_device *dev,
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uint32_t size, uint32_t handle)
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{
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struct msm_bo *msm_bo;
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struct fd_bo *bo;
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unsigned i;
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msm_bo = calloc(1, sizeof(*msm_bo));
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if (!msm_bo)
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return NULL;
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bo = &msm_bo->base;
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bo->funcs = &funcs;
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for (i = 0; i < ARRAY_SIZE(msm_bo->list); i++)
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list_inithead(&msm_bo->list[i]);
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return bo;
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}
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@ -0,0 +1,61 @@
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/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
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/*
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* Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
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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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* Authors:
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* Rob Clark <robclark@freedesktop.org>
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "msm_priv.h"
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static void msm_device_destroy(struct fd_device *dev)
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{
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struct msm_device *msm_dev = to_msm_device(dev);
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free(msm_dev);
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}
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static struct fd_device_funcs funcs = {
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.bo_new_handle = msm_bo_new_handle,
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.bo_from_handle = msm_bo_from_handle,
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.pipe_new = msm_pipe_new,
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.destroy = msm_device_destroy,
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};
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struct fd_device * msm_device_new(int fd)
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{
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struct msm_device *msm_dev;
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struct fd_device *dev;
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msm_dev = calloc(1, sizeof(*msm_dev));
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if (!msm_dev)
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return NULL;
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dev = &msm_dev->base;
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dev->funcs = &funcs;
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return dev;
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}
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@ -0,0 +1,207 @@
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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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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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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 <stddef.h>
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#include <drm/drm.h>
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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 uint64_t 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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/* 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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int64_t tv_sec; /* seconds */
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int64_t tv_nsec; /* nanoseconds */
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};
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#define MSM_PARAM_GPU_ID 0x01
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#define MSM_PARAM_GMEM_SIZE 0x02
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struct drm_msm_param {
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uint32_t pipe; /* in, MSM_PIPE_x */
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uint32_t param; /* in, MSM_PARAM_x */
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uint64_t value; /* out (get_param) or in (set_param) */
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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
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struct drm_msm_gem_new {
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uint64_t size; /* in */
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uint32_t flags; /* in, mask of MSM_BO_x */
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uint32_t handle; /* out */
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};
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struct drm_msm_gem_info {
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uint32_t handle; /* in */
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uint32_t pad;
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uint64_t offset; /* out, offset to pass to mmap() */
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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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struct drm_msm_gem_cpu_prep {
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uint32_t handle; /* in */
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uint32_t 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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uint32_t 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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uint32_t submit_offset; /* in, offset from submit_bo */
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uint32_t or; /* in, value OR'd with result */
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int32_t shift; /* in, amount of left shift (can be negative) */
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uint32_t reloc_idx; /* in, index of reloc_bo buffer */
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||||||
|
uint64_t reloc_offset; /* in, offset from start of reloc_bo */
|
||||||
|
};
|
||||||
|
|
||||||
|
/* submit-types:
|
||||||
|
* BUF - this cmd buffer is executed normally.
|
||||||
|
* IB_TARGET_BUF - this cmd buffer is an IB target. Reloc's are
|
||||||
|
* processed normally, but the kernel does not setup an IB to
|
||||||
|
* this buffer in the first-level ringbuffer
|
||||||
|
* CTX_RESTORE_BUF - only executed if there has been a GPU context
|
||||||
|
* switch since the last SUBMIT ioctl
|
||||||
|
*/
|
||||||
|
#define MSM_SUBMIT_CMD_BUF 0x0001
|
||||||
|
#define MSM_SUBMIT_CMD_IB_TARGET_BUF 0x0002
|
||||||
|
#define MSM_SUBMIT_CMD_CTX_RESTORE_BUF 0x0003
|
||||||
|
struct drm_msm_gem_submit_cmd {
|
||||||
|
uint32_t type; /* in, one of MSM_SUBMIT_CMD_x */
|
||||||
|
uint32_t submit_idx; /* in, index of submit_bo cmdstream buffer */
|
||||||
|
uint32_t submit_offset; /* in, offset into submit_bo */
|
||||||
|
uint32_t size; /* in, cmdstream size */
|
||||||
|
uint32_t pad;
|
||||||
|
uint32_t nr_relocs; /* in, number of submit_reloc's */
|
||||||
|
uint64_t __user relocs; /* in, ptr to array of submit_reloc's */
|
||||||
|
};
|
||||||
|
|
||||||
|
/* Each buffer referenced elsewhere in the cmdstream submit (ie. the
|
||||||
|
* cmdstream buffer(s) themselves or reloc entries) has one (and only
|
||||||
|
* one) entry in the submit->bos[] table.
|
||||||
|
*
|
||||||
|
* As a optimization, the current buffer (gpu virtual address) can be
|
||||||
|
* passed back through the 'presumed' field. If on a subsequent reloc,
|
||||||
|
* userspace passes back a 'presumed' address that is still valid,
|
||||||
|
* then patching the cmdstream for this entry is skipped. This can
|
||||||
|
* avoid kernel needing to map/access the cmdstream bo in the common
|
||||||
|
* case.
|
||||||
|
*/
|
||||||
|
#define MSM_SUBMIT_BO_READ 0x0001
|
||||||
|
#define MSM_SUBMIT_BO_WRITE 0x0002
|
||||||
|
struct drm_msm_gem_submit_bo {
|
||||||
|
uint32_t flags; /* in, mask of MSM_SUBMIT_BO_x */
|
||||||
|
uint32_t handle; /* in, GEM handle */
|
||||||
|
uint64_t presumed; /* in/out, presumed buffer address */
|
||||||
|
};
|
||||||
|
|
||||||
|
/* Each cmdstream submit consists of a table of buffers involved, and
|
||||||
|
* one or more cmdstream buffers. This allows for conditional execution
|
||||||
|
* (context-restore), and IB buffers needed for per tile/bin draw cmds.
|
||||||
|
*/
|
||||||
|
struct drm_msm_gem_submit {
|
||||||
|
uint32_t pipe; /* in, MSM_PIPE_x */
|
||||||
|
uint32_t fence; /* out */
|
||||||
|
uint32_t nr_bos; /* in, number of submit_bo's */
|
||||||
|
uint32_t nr_cmds; /* in, number of submit_cmd's */
|
||||||
|
uint64_t __user bos; /* in, ptr to array of submit_bo's */
|
||||||
|
uint64_t __user cmds; /* in, ptr to array of submit_cmd's */
|
||||||
|
};
|
||||||
|
|
||||||
|
/* The normal way to synchronize with the GPU is just to CPU_PREP on
|
||||||
|
* a buffer if you need to access it from the CPU (other cmdstream
|
||||||
|
* submission from same or other contexts, PAGE_FLIP ioctl, etc, all
|
||||||
|
* handle the required synchronization under the hood). This ioctl
|
||||||
|
* mainly just exists as a way to implement the gallium pipe_fence
|
||||||
|
* APIs without requiring a dummy bo to synchronize on.
|
||||||
|
*/
|
||||||
|
struct drm_msm_wait_fence {
|
||||||
|
uint32_t fence; /* in */
|
||||||
|
uint32_t pad;
|
||||||
|
struct drm_msm_timespec timeout; /* in */
|
||||||
|
};
|
||||||
|
|
||||||
|
#define DRM_MSM_GET_PARAM 0x00
|
||||||
|
/* placeholder:
|
||||||
|
#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_NUM_IOCTLS 0x08
|
||||||
|
|
||||||
|
#define DRM_IOCTL_MSM_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GET_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)
|
||||||
|
|
||||||
|
#endif /* __MSM_DRM_H__ */
|
||||||
|
|
@ -0,0 +1,133 @@
|
||||||
|
/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Copyright (C) 2013 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 "msm_priv.h"
|
||||||
|
|
||||||
|
|
||||||
|
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;
|
||||||
|
default:
|
||||||
|
ERROR_MSG("invalid param id: %d", param);
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static int msm_pipe_wait(struct fd_pipe *pipe, uint32_t timestamp)
|
||||||
|
{
|
||||||
|
struct fd_device *dev = pipe->dev;
|
||||||
|
struct drm_msm_wait_fence req = {
|
||||||
|
.fence = timestamp,
|
||||||
|
};
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
get_abs_timeout(&req.timeout, 5000);
|
||||||
|
|
||||||
|
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 void msm_pipe_destroy(struct fd_pipe *pipe)
|
||||||
|
{
|
||||||
|
struct msm_pipe *msm_pipe = to_msm_pipe(pipe);
|
||||||
|
free(msm_pipe);
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct fd_pipe_funcs funcs = {
|
||||||
|
.ringbuffer_new = msm_ringbuffer_new,
|
||||||
|
.get_param = msm_pipe_get_param,
|
||||||
|
.wait = msm_pipe_wait,
|
||||||
|
.destroy = msm_pipe_destroy,
|
||||||
|
};
|
||||||
|
|
||||||
|
static uint64_t get_param(struct fd_device *dev, uint32_t pipe, uint32_t param)
|
||||||
|
{
|
||||||
|
struct drm_msm_param req = {
|
||||||
|
.pipe = pipe,
|
||||||
|
.param = param,
|
||||||
|
};
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
ret = drmCommandWriteRead(dev->fd, DRM_MSM_GET_PARAM, &req, sizeof(req));
|
||||||
|
if (ret) {
|
||||||
|
ERROR_MSG("get-param failed! %d (%s)", ret, strerror(errno));
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
return req.value;
|
||||||
|
}
|
||||||
|
|
||||||
|
struct fd_pipe * msm_pipe_new(struct fd_device *dev, enum fd_pipe_id id)
|
||||||
|
{
|
||||||
|
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;
|
||||||
|
pipe->funcs = &funcs;
|
||||||
|
|
||||||
|
msm_pipe->pipe = pipe_id[id];
|
||||||
|
msm_pipe->gpu_id = get_param(dev, pipe_id[id], MSM_PARAM_GPU_ID);
|
||||||
|
msm_pipe->gmem = get_param(dev, pipe_id[id], MSM_PARAM_GMEM_SIZE);
|
||||||
|
|
||||||
|
if (! msm_pipe->gpu_id)
|
||||||
|
goto fail;
|
||||||
|
|
||||||
|
INFO_MSG("Pipe Info:");
|
||||||
|
INFO_MSG(" GPU-id: %d", msm_pipe->gpu_id);
|
||||||
|
INFO_MSG(" GMEM size: 0x%08x", msm_pipe->gmem);
|
||||||
|
|
||||||
|
return pipe;
|
||||||
|
fail:
|
||||||
|
if (pipe)
|
||||||
|
fd_pipe_del(pipe);
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,95 @@
|
||||||
|
/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Copyright (C) 2013 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"
|
||||||
|
|
||||||
|
#ifndef __user
|
||||||
|
# define __user
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include "msm_drm.h"
|
||||||
|
|
||||||
|
struct msm_device {
|
||||||
|
struct fd_device base;
|
||||||
|
};
|
||||||
|
|
||||||
|
static inline struct msm_device * to_msm_device(struct fd_device *x)
|
||||||
|
{
|
||||||
|
return (struct msm_device *)x;
|
||||||
|
}
|
||||||
|
|
||||||
|
struct fd_device * msm_device_new(int fd);
|
||||||
|
|
||||||
|
struct msm_pipe {
|
||||||
|
struct fd_pipe base;
|
||||||
|
uint32_t pipe;
|
||||||
|
uint32_t gpu_id;
|
||||||
|
uint32_t gmem;
|
||||||
|
};
|
||||||
|
|
||||||
|
static inline struct msm_pipe * to_msm_pipe(struct fd_pipe *x)
|
||||||
|
{
|
||||||
|
return (struct msm_pipe *)x;
|
||||||
|
}
|
||||||
|
|
||||||
|
struct fd_pipe * msm_pipe_new(struct fd_device *dev, enum fd_pipe_id id);
|
||||||
|
|
||||||
|
struct fd_ringbuffer * msm_ringbuffer_new(struct fd_pipe *pipe,
|
||||||
|
uint32_t size);
|
||||||
|
|
||||||
|
struct msm_bo {
|
||||||
|
struct fd_bo base;
|
||||||
|
uint64_t offset;
|
||||||
|
uint64_t presumed;
|
||||||
|
uint32_t indexp1[FD_PIPE_MAX]; /* index plus 1 */
|
||||||
|
struct list_head list[FD_PIPE_MAX];
|
||||||
|
};
|
||||||
|
|
||||||
|
static inline struct msm_bo * to_msm_bo(struct fd_bo *x)
|
||||||
|
{
|
||||||
|
return (struct msm_bo *)x;
|
||||||
|
}
|
||||||
|
|
||||||
|
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 get_abs_timeout(struct drm_msm_timespec *tv, uint32_t ms)
|
||||||
|
{
|
||||||
|
struct timespec t;
|
||||||
|
uint32_t s = ms / 1000;
|
||||||
|
clock_gettime(CLOCK_MONOTONIC, &t);
|
||||||
|
tv->tv_sec = t.tv_sec + s;
|
||||||
|
tv->tv_nsec = t.tv_nsec + ((ms - (s * 1000)) * 1000000);
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif /* MSM_PRIV_H_ */
|
||||||
|
|
@ -0,0 +1,303 @@
|
||||||
|
/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Copyright (C) 2013 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 <assert.h>
|
||||||
|
|
||||||
|
#include "freedreno_ringbuffer.h"
|
||||||
|
#include "msm_priv.h"
|
||||||
|
|
||||||
|
struct msm_ringbuffer {
|
||||||
|
struct fd_ringbuffer base;
|
||||||
|
struct fd_bo *ring_bo;
|
||||||
|
|
||||||
|
struct list_head submit_list;
|
||||||
|
|
||||||
|
/* bo's table: */
|
||||||
|
struct drm_msm_gem_submit_bo *bos;
|
||||||
|
uint32_t nr_bos, max_bos;
|
||||||
|
|
||||||
|
/* cmd's table: */
|
||||||
|
struct drm_msm_gem_submit_cmd *cmds;
|
||||||
|
uint32_t nr_cmds, max_cmds;
|
||||||
|
|
||||||
|
/* reloc's table: */
|
||||||
|
struct drm_msm_gem_submit_reloc *relocs;
|
||||||
|
uint32_t nr_relocs, max_relocs;
|
||||||
|
};
|
||||||
|
|
||||||
|
static void *grow(void *ptr, uint32_t nr, uint32_t *max, uint32_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 APPEND(x, name) ({ \
|
||||||
|
(x)->name = grow((x)->name, (x)->nr_ ## name, &(x)->max_ ## name, sizeof((x)->name[0])); \
|
||||||
|
(x)->nr_ ## name ++; \
|
||||||
|
})
|
||||||
|
|
||||||
|
static inline struct msm_ringbuffer * to_msm_ringbuffer(struct fd_ringbuffer *x)
|
||||||
|
{
|
||||||
|
return (struct msm_ringbuffer *)x;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* add (if needed) bo, return idx: */
|
||||||
|
static uint32_t bo2idx(struct fd_ringbuffer *ring, struct fd_bo *bo, uint32_t flags)
|
||||||
|
{
|
||||||
|
struct msm_ringbuffer *msm_ring = to_msm_ringbuffer(ring);
|
||||||
|
struct msm_bo *msm_bo = to_msm_bo(bo);
|
||||||
|
int id = ring->pipe->id;
|
||||||
|
uint32_t idx;
|
||||||
|
if (!msm_bo->indexp1[id]) {
|
||||||
|
struct list_head *list = &msm_bo->list[id];
|
||||||
|
idx = APPEND(msm_ring, bos);
|
||||||
|
msm_ring->bos[idx].flags = 0;
|
||||||
|
msm_ring->bos[idx].handle = bo->handle;
|
||||||
|
msm_ring->bos[idx].presumed = msm_bo->presumed;
|
||||||
|
msm_bo->indexp1[id] = idx + 1;
|
||||||
|
|
||||||
|
assert(LIST_IS_EMPTY(list));
|
||||||
|
fd_bo_ref(bo);
|
||||||
|
list_addtail(list, &msm_ring->submit_list);
|
||||||
|
} else {
|
||||||
|
idx = msm_bo->indexp1[id] - 1;
|
||||||
|
}
|
||||||
|
if (flags & FD_RELOC_READ)
|
||||||
|
msm_ring->bos[idx].flags |= MSM_SUBMIT_BO_READ;
|
||||||
|
if (flags & FD_RELOC_WRITE)
|
||||||
|
msm_ring->bos[idx].flags |= MSM_SUBMIT_BO_WRITE;
|
||||||
|
return idx;
|
||||||
|
}
|
||||||
|
|
||||||
|
static uint32_t offset_bytes(void *end, void *start)
|
||||||
|
{
|
||||||
|
return ((char *)end) - ((char *)start);
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct drm_msm_gem_submit_cmd * get_cmd(struct fd_ringbuffer *ring,
|
||||||
|
struct fd_bo *ring_bo, uint32_t submit_offset, uint32_t size, uint32_t type)
|
||||||
|
{
|
||||||
|
struct msm_ringbuffer *msm_ring = to_msm_ringbuffer(ring);
|
||||||
|
struct drm_msm_gem_submit_cmd *cmd = NULL;
|
||||||
|
uint32_t i;
|
||||||
|
|
||||||
|
/* figure out if we already have a cmd buf: */
|
||||||
|
for (i = 0; i < msm_ring->nr_cmds; i++) {
|
||||||
|
cmd = &msm_ring->cmds[i];
|
||||||
|
if ((cmd->submit_offset == submit_offset) &&
|
||||||
|
(cmd->size == size) &&
|
||||||
|
(cmd->type == type))
|
||||||
|
break;
|
||||||
|
cmd = NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* create cmd buf if not: */
|
||||||
|
if (!cmd) {
|
||||||
|
uint32_t idx = APPEND(msm_ring, cmds);
|
||||||
|
cmd = &msm_ring->cmds[idx];
|
||||||
|
cmd->type = type;
|
||||||
|
cmd->submit_idx = bo2idx(ring, ring_bo, FD_RELOC_READ);
|
||||||
|
cmd->submit_offset = submit_offset;
|
||||||
|
cmd->size = size;
|
||||||
|
}
|
||||||
|
|
||||||
|
return cmd;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void * msm_ringbuffer_hostptr(struct fd_ringbuffer *ring)
|
||||||
|
{
|
||||||
|
struct msm_ringbuffer *msm_ring = to_msm_ringbuffer(ring);
|
||||||
|
return fd_bo_map(msm_ring->ring_bo);
|
||||||
|
}
|
||||||
|
|
||||||
|
static uint32_t find_next_reloc_idx(struct msm_ringbuffer *msm_ring,
|
||||||
|
uint32_t start, uint32_t offset)
|
||||||
|
{
|
||||||
|
uint32_t i;
|
||||||
|
|
||||||
|
/* a binary search would be more clever.. */
|
||||||
|
for (i = start; i < msm_ring->nr_relocs; i++) {
|
||||||
|
struct drm_msm_gem_submit_reloc *reloc = &msm_ring->relocs[i];
|
||||||
|
if (reloc->submit_offset >= offset)
|
||||||
|
return i;
|
||||||
|
}
|
||||||
|
|
||||||
|
return i;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int msm_ringbuffer_flush(struct fd_ringbuffer *ring, uint32_t *last_start)
|
||||||
|
{
|
||||||
|
struct msm_ringbuffer *msm_ring = to_msm_ringbuffer(ring);
|
||||||
|
struct fd_bo *ring_bo = msm_ring->ring_bo;
|
||||||
|
struct drm_msm_gem_submit req = {
|
||||||
|
.pipe = to_msm_pipe(ring->pipe)->pipe,
|
||||||
|
};
|
||||||
|
struct msm_bo *msm_bo = NULL, *tmp;
|
||||||
|
uint32_t i, submit_offset, size;
|
||||||
|
int ret, id = ring->pipe->id;
|
||||||
|
|
||||||
|
submit_offset = offset_bytes(last_start, ring->start);
|
||||||
|
size = offset_bytes(ring->cur, last_start);
|
||||||
|
|
||||||
|
get_cmd(ring, ring_bo, submit_offset, size, MSM_SUBMIT_CMD_BUF);
|
||||||
|
|
||||||
|
/* needs to be after get_cmd() as that could create bos/cmds table: */
|
||||||
|
req.bos = VOID2U64(msm_ring->bos),
|
||||||
|
req.nr_bos = msm_ring->nr_bos;
|
||||||
|
req.cmds = VOID2U64(msm_ring->cmds),
|
||||||
|
req.nr_cmds = msm_ring->nr_cmds;
|
||||||
|
|
||||||
|
/* for each of the cmd's fix up their reloc's: */
|
||||||
|
for (i = 0; i < msm_ring->nr_cmds; i++) {
|
||||||
|
struct drm_msm_gem_submit_cmd *cmd = &msm_ring->cmds[i];
|
||||||
|
uint32_t a = find_next_reloc_idx(msm_ring, 0, cmd->submit_offset);
|
||||||
|
uint32_t b = find_next_reloc_idx(msm_ring, a, cmd->submit_offset + cmd->size);
|
||||||
|
cmd->relocs = VOID2U64(&msm_ring->relocs[a]);
|
||||||
|
cmd->nr_relocs = (b > a) ? b - a : 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
DEBUG_MSG("nr_cmds=%u, nr_bos=%u\n", req.nr_cmds, req.nr_bos);
|
||||||
|
|
||||||
|
ret = drmCommandWriteRead(ring->pipe->dev->fd, DRM_MSM_GEM_SUBMIT,
|
||||||
|
&req, sizeof(req));
|
||||||
|
if (ret)
|
||||||
|
ERROR_MSG("submit failed: %d (%s)", ret, strerror(errno));
|
||||||
|
|
||||||
|
LIST_FOR_EACH_ENTRY_SAFE(msm_bo, tmp, &msm_ring->submit_list, list[id]) {
|
||||||
|
struct list_head *list = &msm_bo->list[id];
|
||||||
|
list_delinit(list);
|
||||||
|
msm_bo->indexp1[id] = 0;
|
||||||
|
fd_bo_del(&msm_bo->base);
|
||||||
|
}
|
||||||
|
|
||||||
|
msm_ring->nr_cmds = 0;
|
||||||
|
msm_ring->nr_relocs = 0;
|
||||||
|
msm_ring->nr_bos = 0;
|
||||||
|
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void msm_ringbuffer_emit_reloc(struct fd_ringbuffer *ring,
|
||||||
|
const struct fd_reloc *r)
|
||||||
|
{
|
||||||
|
struct msm_ringbuffer *msm_ring = to_msm_ringbuffer(ring);
|
||||||
|
struct msm_bo *msm_bo = to_msm_bo(r->bo);
|
||||||
|
struct drm_msm_gem_submit_reloc *reloc;
|
||||||
|
uint32_t idx = APPEND(msm_ring, relocs);
|
||||||
|
uint32_t addr;
|
||||||
|
|
||||||
|
reloc = &msm_ring->relocs[idx];
|
||||||
|
|
||||||
|
reloc->reloc_idx = bo2idx(ring, r->bo, r->flags);
|
||||||
|
reloc->reloc_offset = r->offset;
|
||||||
|
reloc->or = r->or;
|
||||||
|
reloc->shift = r->shift;
|
||||||
|
reloc->submit_offset = offset_bytes(ring->cur, ring->start);
|
||||||
|
|
||||||
|
addr = msm_bo->presumed;
|
||||||
|
if (r->shift < 0)
|
||||||
|
addr >>= -r->shift;
|
||||||
|
else
|
||||||
|
addr <<= r->shift;
|
||||||
|
(*ring->cur++) = addr | r->or;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void msm_ringbuffer_emit_reloc_ring(struct fd_ringbuffer *ring,
|
||||||
|
struct fd_ringmarker *target, struct fd_ringmarker *end)
|
||||||
|
{
|
||||||
|
struct fd_bo *ring_bo = to_msm_ringbuffer(target->ring)->ring_bo;
|
||||||
|
struct drm_msm_gem_submit_cmd *cmd;
|
||||||
|
uint32_t submit_offset, size;
|
||||||
|
|
||||||
|
submit_offset = offset_bytes(target->cur, target->ring->start);
|
||||||
|
size = offset_bytes(end->cur, target->cur);
|
||||||
|
|
||||||
|
assert(target->ring == ring); // TODO
|
||||||
|
|
||||||
|
cmd = get_cmd(ring, ring_bo, submit_offset, size,
|
||||||
|
MSM_SUBMIT_CMD_IB_TARGET_BUF);
|
||||||
|
assert(cmd);
|
||||||
|
|
||||||
|
msm_ringbuffer_emit_reloc(ring, &(struct fd_reloc){
|
||||||
|
.bo = ring_bo,
|
||||||
|
.flags = FD_RELOC_READ,
|
||||||
|
.offset = submit_offset,
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
static void msm_ringbuffer_destroy(struct fd_ringbuffer *ring)
|
||||||
|
{
|
||||||
|
struct msm_ringbuffer *msm_ring = to_msm_ringbuffer(ring);
|
||||||
|
if (msm_ring->ring_bo)
|
||||||
|
fd_bo_del(msm_ring->ring_bo);
|
||||||
|
free(msm_ring);
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct fd_ringbuffer_funcs funcs = {
|
||||||
|
.hostptr = msm_ringbuffer_hostptr,
|
||||||
|
.flush = msm_ringbuffer_flush,
|
||||||
|
.emit_reloc = msm_ringbuffer_emit_reloc,
|
||||||
|
.emit_reloc_ring = msm_ringbuffer_emit_reloc_ring,
|
||||||
|
.destroy = msm_ringbuffer_destroy,
|
||||||
|
};
|
||||||
|
|
||||||
|
struct fd_ringbuffer * msm_ringbuffer_new(struct fd_pipe *pipe,
|
||||||
|
uint32_t size)
|
||||||
|
{
|
||||||
|
struct msm_ringbuffer *msm_ring;
|
||||||
|
struct fd_ringbuffer *ring = NULL;
|
||||||
|
|
||||||
|
msm_ring = calloc(1, sizeof(*msm_ring));
|
||||||
|
if (!msm_ring) {
|
||||||
|
ERROR_MSG("allocation failed");
|
||||||
|
goto fail;
|
||||||
|
}
|
||||||
|
|
||||||
|
ring = &msm_ring->base;
|
||||||
|
ring->funcs = &funcs;
|
||||||
|
|
||||||
|
list_inithead(&msm_ring->submit_list);
|
||||||
|
|
||||||
|
msm_ring->ring_bo = fd_bo_new(pipe->dev, size, 0);
|
||||||
|
if (!msm_ring->ring_bo) {
|
||||||
|
ERROR_MSG("ringbuffer allocation failed");
|
||||||
|
goto fail;
|
||||||
|
}
|
||||||
|
|
||||||
|
return ring;
|
||||||
|
fail:
|
||||||
|
if (ring)
|
||||||
|
fd_ringbuffer_del(ring);
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue