[RFC][PATCH 2/2 v4] drm_hwcomposer: Add platformhisi buffer importer for hikey and hikey960

Robert Foss robert.foss at collabora.com
Thu Mar 8 11:16:29 UTC 2018


Hey John,

This patch looks good to me.

I have yet to build it, and I haven't brought my HiKey960 up for testing quite yet.


On 03/07/2018 12:19 AM, John Stultz wrote:
> This allows for importing buffers allocated from the
> hikey and hikey960 gralloc implelementations.

"implelementations" -> "implementations"

> 
> Cc: Marissa Wall <marissaw at google.com>
> Cc: Sean Paul <seanpaul at google.com>
> Cc: Dmitry Shmidt <dimitrysh at google.com>
> Cc: Robert Foss <robert.foss at collabora.com>
> Cc: Matt Szczesiak <matt.szczesiak at arm.com>
> Cc: Liviu Dudau <Liviu.Dudau at arm.com>
> Cc: David Hanna <david.hanna11 at gmail.com>
> Cc: Rob Herring <rob.herring at linaro.org>
> Cc: Alexandru-Cosmin Gheorghe <Alexandru-Cosmin.Gheorghe at arm.com>
> Signed-off-by: John Stultz <john.stultz at linaro.org>
> ---
> v2:
> * Make platformhisi and the generic importer exclusive in the
>    build
> * Fixup vendor check
> v3:
> * Unify format conversions
> * Subclass the platformdrmgeneric importer implementation to
>    reduce code duplication
> * Rework to avoid board specific logic (tweak gralloc to be
>    consistent between the two)
> v4:
> * Minor cleanups as suggested by Alexandru-Cosmin Gheorghe
> ---
>   Android.mk           |  13 +++++
>   platformdrmgeneric.h |   2 +-
>   platformhisi.cpp     | 135 +++++++++++++++++++++++++++++++++++++++++++++++++++
>   platformhisi.h       |  48 ++++++++++++++++++
>   4 files changed, 197 insertions(+), 1 deletion(-)
>   create mode 100644 platformhisi.cpp
>   create mode 100644 platformhisi.h
> 
> diff --git a/Android.mk b/Android.mk
> index ee5b8bf..f37e4c3 100644
> --- a/Android.mk
> +++ b/Android.mk
> @@ -74,7 +74,20 @@ LOCAL_CPPFLAGS += \
>   	-DHWC2_USE_CPP11 \
>   	-DHWC2_INCLUDE_STRINGIFICATION
>   
> +
> +ifeq ($(TARGET_PRODUCT),hikey960)
> +LOCAL_CPPFLAGS += -DUSE_HISI_IMPORTER
> +LOCAL_SRC_FILES += platformhisi.cpp
> +LOCAL_C_INCLUDES += device/linaro/hikey/gralloc960/
> +else
> +ifeq ($(TARGET_PRODUCT),hikey)
> +LOCAL_CPPFLAGS += -DUSE_HISI_IMPORTER
> +LOCAL_SRC_FILES += platformhisi.cpp
> +LOCAL_C_INCLUDES += device/linaro/hikey/gralloc/
> +else
>   LOCAL_CPPFLAGS += -DUSE_DRM_GENERIC_IMPORTER
> +endif
> +endif
>   
>   LOCAL_MODULE := hwcomposer.drm
>   LOCAL_MODULE_TAGS := optional
> diff --git a/platformdrmgeneric.h b/platformdrmgeneric.h
> index 8376580..fbe059b 100644
> --- a/platformdrmgeneric.h
> +++ b/platformdrmgeneric.h
> @@ -35,8 +35,8 @@ class DrmGenericImporter : public Importer {
>     int ImportBuffer(buffer_handle_t handle, hwc_drm_bo_t *bo) override;
>     int ReleaseBuffer(hwc_drm_bo_t *bo) override;
>   
> - private:
>     uint32_t ConvertHalFormatToDrm(uint32_t hal_format);
> + private:
>   
>     DrmResources *drm_;
>   
> diff --git a/platformhisi.cpp b/platformhisi.cpp
> new file mode 100644
> index 0000000..16c5e6f
> --- /dev/null
> +++ b/platformhisi.cpp
> @@ -0,0 +1,135 @@
> +/*
> + * Copyright (C) 2015 The Android Open Source Project
> + *
> + * Licensed under the Apache License, Version 2.0 (the "License");
> + * you may not use this file except in compliance with the License.
> + * You may obtain a copy of the License at
> + *
> + *      http://www.apache.org/licenses/LICENSE-2.0
> + *
> + * Unless required by applicable law or agreed to in writing, software
> + * distributed under the License is distributed on an "AS IS" BASIS,
> + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
> + * See the License for the specific language governing permissions and
> + * limitations under the License.
> + */
> +
> +#define LOG_TAG "hwc-platform-hisi"
> +
> +#include "drmresources.h"
> +#include "platform.h"
> +#include "platformhisi.h"
> +
> +
> +#include <drm/drm_fourcc.h>
> +#include <cinttypes>
> +#include <stdatomic.h>
> +#include <xf86drm.h>
> +#include <xf86drmMode.h>
> +
> +#include <cutils/log.h>
> +#include <hardware/gralloc.h>
> +#include "gralloc_priv.h"
> +
> +
> +namespace android {
> +
> +Importer *Importer::CreateInstance(DrmResources *drm) {
> +  HisiImporter *importer = new HisiImporter(drm);
> +  if (!importer)
> +    return NULL;
> +
> +  int ret = importer->Init();
> +  if (ret) {
> +    ALOGE("Failed to initialize the hisi importer %d", ret);
> +    delete importer;
> +    return NULL;
> +  }
> +  return importer;
> +}
> +
> +HisiImporter::HisiImporter(DrmResources *drm) : DrmGenericImporter(drm), drm_(drm) {
> +}
> +
> +HisiImporter::~HisiImporter() {
> +}
> +
> +int HisiImporter::Init() {
> +  int ret = hw_get_module(GRALLOC_HARDWARE_MODULE_ID,
> +                          (const hw_module_t **)&gralloc_);
> +  if (ret) {
> +    ALOGE("Failed to open gralloc module %d", ret);
> +    return ret;
> +  }
> +
> +  if (strcasecmp(gralloc_->common.author, "ARM Ltd."))
> +    ALOGW("Using non-ARM gralloc module: %s/%s\n", gralloc_->common.name,
> +          gralloc_->common.author);
> +
> +  return 0;
> +}
> +
> +EGLImageKHR HisiImporter::ImportImage(EGLDisplay egl_display, buffer_handle_t handle) {
> +  private_handle_t const *hnd = reinterpret_cast < private_handle_t const *>(handle);
> +  if (!hnd)
> +    return NULL;
> +
> +  EGLint fmt = ConvertHalFormatToDrm(hnd->req_format);
> +  if (fmt < 0)
> +	return NULL;
> +
> +  EGLint attr[] = {
> +    EGL_WIDTH, hnd->width,
> +    EGL_HEIGHT, hnd->height,
> +    EGL_LINUX_DRM_FOURCC_EXT, fmt,
> +    EGL_DMA_BUF_PLANE0_FD_EXT, hnd->share_fd,
> +    EGL_DMA_BUF_PLANE0_OFFSET_EXT, 0,
> +    EGL_DMA_BUF_PLANE0_PITCH_EXT, hnd->byte_stride,
> +    EGL_NONE,
> +  };
> +  return eglCreateImageKHR(egl_display, EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, attr);
> +}
> +
> +int HisiImporter::ImportBuffer(buffer_handle_t handle, hwc_drm_bo_t *bo) {
> +  private_handle_t const *hnd = reinterpret_cast < private_handle_t const *>(handle);
> +  if (!hnd)
> +    return -EINVAL;
> +
> +  uint32_t gem_handle;
> +  int ret = drmPrimeFDToHandle(drm_->fd(), hnd->share_fd, &gem_handle);
> +  if (ret) {
> +    ALOGE("failed to import prime fd %d ret=%d", hnd->share_fd, ret);
> +    return ret;
> +  }
> +
> +  EGLint fmt = ConvertHalFormatToDrm(hnd->req_format);
> +  if (fmt < 0)
> +	return fmt;
> +
> +  memset(bo, 0, sizeof(hwc_drm_bo_t));
> +  bo->width = hnd->width;
> +  bo->height = hnd->height;
> +  bo->format = fmt;
> +  bo->usage = hnd->usage;
> +  bo->pitches[0] = hnd->byte_stride;
> +  bo->gem_handles[0] = gem_handle;
> +  bo->offsets[0] = 0;
> +
> +  ret = drmModeAddFB2(drm_->fd(), bo->width, bo->height, bo->format,
> +                      bo->gem_handles, bo->pitches, bo->offsets, &bo->fb_id, 0);
> +  if (ret) {
> +    ALOGE("could not create drm fb %d", ret);
> +    return ret;
> +  }
> +
> +  return ret;
> +}
> +
> +std::unique_ptr<Planner> Planner::CreateInstance(DrmResources *) {
> +  std::unique_ptr<Planner> planner(new Planner);
> +  planner->AddStage<PlanStageGreedy>();
> +  return planner;
> +}
> +}
> +
> +
> diff --git a/platformhisi.h b/platformhisi.h
> new file mode 100644
> index 0000000..46f4595
> --- /dev/null
> +++ b/platformhisi.h
> @@ -0,0 +1,48 @@
> +/*
> + * Copyright (C) 2015 The Android Open Source Project
> + *
> + * Licensed under the Apache License, Version 2.0 (the "License");
> + * you may not use this file except in compliance with the License.
> + * You may obtain a copy of the License at
> + *
> + *      http://www.apache.org/licenses/LICENSE-2.0
> + *
> + * Unless required by applicable law or agreed to in writing, software
> + * distributed under the License is distributed on an "AS IS" BASIS,
> + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
> + * See the License for the specific language governing permissions and
> + * limitations under the License.
> + */
> +
> +#ifndef ANDROID_PLATFORM_HISI_H_
> +#define ANDROID_PLATFORM_HISI_H_
> +
> +#include "drmresources.h"
> +#include "platform.h"
> +#include "platformdrmgeneric.h"
> +
> +#include <stdatomic.h>
> +
> +#include <hardware/gralloc.h>
> +
> +namespace android {
> +
> +class HisiImporter : public DrmGenericImporter {
> + public:
> +  HisiImporter(DrmResources *drm);
> +  ~HisiImporter() override;
> +
> +  int Init();
> +
> +  EGLImageKHR ImportImage(EGLDisplay egl_display, buffer_handle_t handle) override;
> +  int ImportBuffer(buffer_handle_t handle, hwc_drm_bo_t *bo) override;
> +
> + private:
> +
> +  DrmResources *drm_;
> +
> +  const gralloc_module_t *gralloc_;
> +};
> +}
> +
> +#endif
> 


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