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Message-ID: <7108c7c3-865e-c74b-b993-1227f31a0ef4@amd.com>
Date: Thu, 1 Sep 2022 08:49:05 +0200
From: Christian König <christian.koenig@....com>
To: Dmitry Osipenko <dmitry.osipenko@...labora.com>,
David Airlie <airlied@...ux.ie>,
Gerd Hoffmann <kraxel@...hat.com>,
Gurchetan Singh <gurchetansingh@...omium.org>,
Chia-I Wu <olvaffe@...il.com>, Daniel Vetter <daniel@...ll.ch>,
Daniel Almeida <daniel.almeida@...labora.com>,
Gert Wollny <gert.wollny@...labora.com>,
Gustavo Padovan <gustavo.padovan@...labora.com>,
Daniel Stone <daniel@...ishbar.org>,
Tomeu Vizoso <tomeu.vizoso@...labora.com>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
Rob Clark <robdclark@...il.com>,
Sumit Semwal <sumit.semwal@...aro.org>,
"Pan, Xinhui" <Xinhui.Pan@....com>,
Thierry Reding <thierry.reding@...il.com>,
Tomasz Figa <tfiga@...omium.org>,
Marek Szyprowski <m.szyprowski@...sung.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Alex Deucher <alexander.deucher@....com>,
Jani Nikula <jani.nikula@...ux.intel.com>,
Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@...el.com>,
Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
Thomas Hellström <thomas_os@...pmail.org>,
Qiang Yu <yuq825@...il.com>,
Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
Amol Maheshwari <amahesh@....qualcomm.com>,
Jason Gunthorpe <jgg@...pe.ca>,
Leon Romanovsky <leon@...nel.org>,
Juergen Gross <jgross@...e.com>,
Stefano Stabellini <sstabellini@...nel.org>,
Oleksandr Tyshchenko <oleksandr_tyshchenko@...m.com>,
Tomi Valkeinen <tomba@...nel.org>,
Russell King <linux@...linux.org.uk>,
Lucas Stach <l.stach@...gutronix.de>,
Christian Gmeiner <christian.gmeiner@...il.com>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
Dmitry Osipenko <digetx@...il.com>,
linux-media@...r.kernel.org, linaro-mm-sig@...ts.linaro.org,
amd-gfx@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org,
kernel@...labora.com, virtualization@...ts.linux-foundation.org,
linux-rdma@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v4 08/21] drm/tegra: Prepare to dynamic dma-buf locking
specification
Am 31.08.22 um 17:37 schrieb Dmitry Osipenko:
> Prepare Tegra DRM driver to the common dynamic dma-buf locking convention
> by starting to use the unlocked versions of dma-buf API functions.
>
> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@...labora.com>
Acked-by: Christian König <christian.koenig@....com>
> ---
> drivers/gpu/drm/tegra/gem.c | 17 +++++++++--------
> 1 file changed, 9 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c
> index 81991090adcc..b09b8ab40ae4 100644
> --- a/drivers/gpu/drm/tegra/gem.c
> +++ b/drivers/gpu/drm/tegra/gem.c
> @@ -84,7 +84,7 @@ static struct host1x_bo_mapping *tegra_bo_pin(struct device *dev, struct host1x_
> goto free;
> }
>
> - map->sgt = dma_buf_map_attachment(map->attach, direction);
> + map->sgt = dma_buf_map_attachment_unlocked(map->attach, direction);
> if (IS_ERR(map->sgt)) {
> dma_buf_detach(buf, map->attach);
> err = PTR_ERR(map->sgt);
> @@ -160,7 +160,8 @@ static struct host1x_bo_mapping *tegra_bo_pin(struct device *dev, struct host1x_
> static void tegra_bo_unpin(struct host1x_bo_mapping *map)
> {
> if (map->attach) {
> - dma_buf_unmap_attachment(map->attach, map->sgt, map->direction);
> + dma_buf_unmap_attachment_unlocked(map->attach, map->sgt,
> + map->direction);
> dma_buf_detach(map->attach->dmabuf, map->attach);
> } else {
> dma_unmap_sgtable(map->dev, map->sgt, map->direction, 0);
> @@ -181,7 +182,7 @@ static void *tegra_bo_mmap(struct host1x_bo *bo)
> if (obj->vaddr) {
> return obj->vaddr;
> } else if (obj->gem.import_attach) {
> - ret = dma_buf_vmap(obj->gem.import_attach->dmabuf, &map);
> + ret = dma_buf_vmap_unlocked(obj->gem.import_attach->dmabuf, &map);
> return ret ? NULL : map.vaddr;
> } else {
> return vmap(obj->pages, obj->num_pages, VM_MAP,
> @@ -197,7 +198,7 @@ static void tegra_bo_munmap(struct host1x_bo *bo, void *addr)
> if (obj->vaddr)
> return;
> else if (obj->gem.import_attach)
> - dma_buf_vunmap(obj->gem.import_attach->dmabuf, &map);
> + dma_buf_vunmap_unlocked(obj->gem.import_attach->dmabuf, &map);
> else
> vunmap(addr);
> }
> @@ -461,7 +462,7 @@ static struct tegra_bo *tegra_bo_import(struct drm_device *drm,
>
> get_dma_buf(buf);
>
> - bo->sgt = dma_buf_map_attachment(attach, DMA_TO_DEVICE);
> + bo->sgt = dma_buf_map_attachment_unlocked(attach, DMA_TO_DEVICE);
> if (IS_ERR(bo->sgt)) {
> err = PTR_ERR(bo->sgt);
> goto detach;
> @@ -479,7 +480,7 @@ static struct tegra_bo *tegra_bo_import(struct drm_device *drm,
>
> detach:
> if (!IS_ERR_OR_NULL(bo->sgt))
> - dma_buf_unmap_attachment(attach, bo->sgt, DMA_TO_DEVICE);
> + dma_buf_unmap_attachment_unlocked(attach, bo->sgt, DMA_TO_DEVICE);
>
> dma_buf_detach(buf, attach);
> dma_buf_put(buf);
> @@ -508,8 +509,8 @@ void tegra_bo_free_object(struct drm_gem_object *gem)
> tegra_bo_iommu_unmap(tegra, bo);
>
> if (gem->import_attach) {
> - dma_buf_unmap_attachment(gem->import_attach, bo->sgt,
> - DMA_TO_DEVICE);
> + dma_buf_unmap_attachment_unlocked(gem->import_attach, bo->sgt,
> + DMA_TO_DEVICE);
> drm_prime_gem_destroy(gem, NULL);
> } else {
> tegra_bo_free(gem->dev, bo);
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