diff options
author | Jordan Crouse <jcrouse@codeaurora.org> | 2018-11-07 15:35:50 -0700 |
---|---|---|
committer | Rob Clark <robdclark@gmail.com> | 2018-12-11 13:05:32 -0500 |
commit | 9fe041f6fdfedd92e15dd81d96475ff04bdf879e (patch) | |
tree | 031088e4ea1257701903dbe9fd03a9e522086302 /drivers/gpu | |
parent | 575f0485508bb210914d8b45bdd8481d0ecd4a72 (diff) | |
download | linux-9fe041f6fdfedd92e15dd81d96475ff04bdf879e.tar.bz2 |
drm/msm: Add msm_gem_get_and_pin_iova()
Add a new function to get and pin the iova memory in one
step (basically renaming the old msm_gem_get_iova function)
and switch msm_gem_get_iova() to only allocate an iova but
not map it in the IOMMU. This is only currently used by
msm_ioctl_gem_info() since all other users of of the iova
expect that the memory be immediately available.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r-- | drivers/gpu/drm/msm/adreno/adreno_gpu.c | 3 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c | 4 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/dsi/dsi_host.c | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/msm_drv.c | 4 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/msm_drv.h | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/msm_fb.c | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/msm_fbdev.c | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/msm_gem.c | 24 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/msm_gem_submit.c | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/msm_gpu.c | 2 |
12 files changed, 36 insertions, 15 deletions
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index 789f7afe1851..7ab2788e33b6 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -209,7 +209,8 @@ int adreno_hw_init(struct msm_gpu *gpu) if (!ring) continue; - ret = msm_gem_get_iova(ring->bo, gpu->aspace, &ring->iova); + ret = msm_gem_get_and_pin_iova(ring->bo, gpu->aspace, + &ring->iova); if (ret) { ring->iova = 0; DRM_DEV_ERROR(gpu->dev->dev, diff --git a/drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c b/drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c index b91706cee2b8..ef6884f1fc34 100644 --- a/drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c +++ b/drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c @@ -384,7 +384,7 @@ static void update_cursor(struct drm_crtc *crtc) if (next_bo) { /* take a obj ref + iova ref when we start scanning out: */ drm_gem_object_get(next_bo); - msm_gem_get_iova(next_bo, kms->aspace, &iova); + msm_gem_get_and_pin_iova(next_bo, kms->aspace, &iova); /* enable cursor: */ mdp4_write(mdp4_kms, REG_MDP4_DMA_CURSOR_SIZE(dma), @@ -442,7 +442,7 @@ static int mdp4_crtc_cursor_set(struct drm_crtc *crtc, } if (cursor_bo) { - ret = msm_gem_get_iova(cursor_bo, kms->aspace, &iova); + ret = msm_gem_get_and_pin_iova(cursor_bo, kms->aspace, &iova); if (ret) goto fail; } else { diff --git a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c index 481c0d231149..9fd6b9b2dbcb 100644 --- a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c +++ b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c @@ -538,7 +538,7 @@ struct msm_kms *mdp4_kms_init(struct drm_device *dev) goto fail; } - ret = msm_gem_get_iova(mdp4_kms->blank_cursor_bo, kms->aspace, + ret = msm_gem_get_and_pin_iova(mdp4_kms->blank_cursor_bo, kms->aspace, &mdp4_kms->blank_cursor_iova); if (ret) { DRM_DEV_ERROR(dev->dev, "could not pin blank-cursor bo: %d\n", ret); diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c index 413b52211017..c7cc276575fb 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c @@ -903,7 +903,7 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc, if (!cursor_bo) return -ENOENT; - ret = msm_gem_get_iova(cursor_bo, kms->aspace, + ret = msm_gem_get_and_pin_iova(cursor_bo, kms->aspace, &mdp5_crtc->cursor.iova); if (ret) return -EINVAL; diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index eba901584035..99122767abf4 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -1248,7 +1248,7 @@ int dsi_dma_base_get_6g(struct msm_dsi_host *msm_host, uint64_t *dma_base) if (!dma_base) return -EINVAL; - return msm_gem_get_iova(msm_host->tx_gem_obj, + return msm_gem_get_and_pin_iova(msm_host->tx_gem_obj, priv->kms->aspace, dma_base); } diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index cf960dc78982..3f8ed21dfffb 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -868,6 +868,10 @@ static int msm_ioctl_gem_info_iova(struct drm_device *dev, if (!priv->gpu) return -EINVAL; + /* + * Don't pin the memory here - just get an address so that userspace can + * be productive + */ return msm_gem_get_iova(obj, priv->gpu->aspace, iova); } diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index 63b28b69b2ab..4372505a0bda 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -271,6 +271,8 @@ vm_fault_t msm_gem_fault(struct vm_fault *vmf); uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj); int msm_gem_get_iova(struct drm_gem_object *obj, struct msm_gem_address_space *aspace, uint64_t *iova); +int msm_gem_get_and_pin_iova(struct drm_gem_object *obj, + struct msm_gem_address_space *aspace, uint64_t *iova); uint64_t msm_gem_iova(struct drm_gem_object *obj, struct msm_gem_address_space *aspace); struct page **msm_gem_get_pages(struct drm_gem_object *obj); diff --git a/drivers/gpu/drm/msm/msm_fb.c b/drivers/gpu/drm/msm/msm_fb.c index 475191fcf412..4e1e435db5a6 100644 --- a/drivers/gpu/drm/msm/msm_fb.c +++ b/drivers/gpu/drm/msm/msm_fb.c @@ -66,7 +66,7 @@ int msm_framebuffer_prepare(struct drm_framebuffer *fb, uint64_t iova; for (i = 0; i < n; i++) { - ret = msm_gem_get_iova(fb->obj[i], aspace, &iova); + ret = msm_gem_get_and_pin_iova(fb->obj[i], aspace, &iova); DBG("FB[%u]: iova[%d]: %08llx (%d)", fb->base.id, i, iova, ret); if (ret) return ret; diff --git a/drivers/gpu/drm/msm/msm_fbdev.c b/drivers/gpu/drm/msm/msm_fbdev.c index f94cbbbf3834..c03e860ba737 100644 --- a/drivers/gpu/drm/msm/msm_fbdev.c +++ b/drivers/gpu/drm/msm/msm_fbdev.c @@ -104,7 +104,7 @@ static int msm_fbdev_create(struct drm_fb_helper *helper, * in panic (ie. lock-safe, etc) we could avoid pinning the * buffer now: */ - ret = msm_gem_get_iova(bo, priv->kms->aspace, &paddr); + ret = msm_gem_get_and_pin_iova(bo, priv->kms->aspace, &paddr); if (ret) { DRM_DEV_ERROR(dev->dev, "failed to get buffer obj iova: %d\n", ret); goto fail_unlock; diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index f24c9fe37aaa..75a1f50f8f57 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -408,9 +408,8 @@ static int msm_gem_pin_iova(struct drm_gem_object *obj, obj->size >> PAGE_SHIFT); } - -/* get iova, taking a reference. Should have a matching put */ -int msm_gem_get_iova(struct drm_gem_object *obj, +/* get iova and pin it. Should have a matching put */ +int msm_gem_get_and_pin_iova(struct drm_gem_object *obj, struct msm_gem_address_space *aspace, uint64_t *iova) { struct msm_gem_object *msm_obj = to_msm_bo(obj); @@ -431,8 +430,23 @@ int msm_gem_get_iova(struct drm_gem_object *obj, return ret; } +/* Get an iova but don't pin the memory behind it */ +int msm_gem_get_iova(struct drm_gem_object *obj, + struct msm_gem_address_space *aspace, uint64_t *iova) +{ + struct msm_gem_object *msm_obj = to_msm_bo(obj); + int ret; + + mutex_lock(&msm_obj->lock); + ret = msm_gem_get_iova_locked(obj, aspace, iova); + mutex_unlock(&msm_obj->lock); + + return ret; +} + + /* get iova without taking a reference, used in places where you have - * already done a 'msm_gem_get_iova()'. + * already done a 'msm_gem_get_and_pin_iova' or 'msm_gem_get_iova' */ uint64_t msm_gem_iova(struct drm_gem_object *obj, struct msm_gem_address_space *aspace) @@ -1072,7 +1086,7 @@ static void *_msm_gem_kernel_new(struct drm_device *dev, uint32_t size, return ERR_CAST(obj); if (iova) { - ret = msm_gem_get_iova(obj, aspace, iova); + ret = msm_gem_get_and_pin_iova(obj, aspace, iova); if (ret) goto err; } diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index e31be7417f94..1322179386f6 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -270,7 +270,7 @@ static int submit_pin_objects(struct msm_gem_submit *submit) uint64_t iova; /* if locking succeeded, pin bo: */ - ret = msm_gem_get_iova(&msm_obj->base, + ret = msm_gem_get_and_pin_iova(&msm_obj->base, submit->gpu->aspace, &iova); if (ret) diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c index 3e2b3568d932..fcfff333ed96 100644 --- a/drivers/gpu/drm/msm/msm_gpu.c +++ b/drivers/gpu/drm/msm/msm_gpu.c @@ -773,7 +773,7 @@ void msm_gpu_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit, /* submit takes a reference to the bo and iova until retired: */ drm_gem_object_get(&msm_obj->base); - msm_gem_get_iova(&msm_obj->base, + msm_gem_get_and_pin_iova(&msm_obj->base, submit->gpu->aspace, &iova); if (submit->bos[i].flags & MSM_SUBMIT_BO_WRITE) |