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author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-01-08 09:53:02 +0100 |
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committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-01-08 09:53:03 +0100 |
commit | 25ea8ecf4d9348e07544e861714b689cadbfa4c3 (patch) | |
tree | 800c6b5a2722c2d1fb75f454d5ff73a790d8cab9 /drivers/gpu/drm/msm | |
parent | 4e181dede94d33c369ed441c63986916677231a9 (diff) | |
parent | 00fd44a1a4700718d5d962432b55c09820f7e709 (diff) | |
download | linux-25ea8ecf4d9348e07544e861714b689cadbfa4c3.tar.bz2 |
Merge tag 'drm-msm-fixes-2021-01-07' of https://gitlab.freedesktop.org/drm/msm into drm-fixes
A few misc fixes from Rob, mostly fallout from the locking rework that
landed in the merge window, plus a few smaller things.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGtWMhzyD6kejmViZeZ+zfJxRvfq-R2t_zA+DcDiTxsYRQ@mail.gmail.com
Diffstat (limited to 'drivers/gpu/drm/msm')
-rw-r--r-- | drivers/gpu/drm/msm/adreno/a2xx_gpu.c | 6 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/adreno/a3xx_gpu.c | 6 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/adreno/a4xx_gpu.c | 6 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/adreno/adreno_device.c | 4 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/adreno/adreno_gpu.c | 21 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/adreno/adreno_gpu.h | 6 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/dp/dp_display.c | 7 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/dp/dp_panel.c | 12 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/msm_drv.c | 8 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/msm_gem.c | 13 |
10 files changed, 63 insertions, 26 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a2xx_gpu.c b/drivers/gpu/drm/msm/adreno/a2xx_gpu.c index 7e82c41a85f1..bdc989183c64 100644 --- a/drivers/gpu/drm/msm/adreno/a2xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a2xx_gpu.c @@ -534,8 +534,10 @@ struct msm_gpu *a2xx_gpu_init(struct drm_device *dev) if (!gpu->aspace) { dev_err(dev->dev, "No memory protection without MMU\n"); - ret = -ENXIO; - goto fail; + if (!allow_vram_carveout) { + ret = -ENXIO; + goto fail; + } } return gpu; diff --git a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c index 93da6683a866..4534633fe7cd 100644 --- a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c @@ -564,8 +564,10 @@ struct msm_gpu *a3xx_gpu_init(struct drm_device *dev) * implement a cmdstream validator. */ DRM_DEV_ERROR(dev->dev, "No memory protection without IOMMU\n"); - ret = -ENXIO; - goto fail; + if (!allow_vram_carveout) { + ret = -ENXIO; + goto fail; + } } icc_path = devm_of_icc_get(&pdev->dev, "gfx-mem"); diff --git a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c index c0be3a0f36b2..82bebb40234d 100644 --- a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c @@ -692,8 +692,10 @@ struct msm_gpu *a4xx_gpu_init(struct drm_device *dev) * implement a cmdstream validator. */ DRM_DEV_ERROR(dev->dev, "No memory protection without IOMMU\n"); - ret = -ENXIO; - goto fail; + if (!allow_vram_carveout) { + ret = -ENXIO; + goto fail; + } } icc_path = devm_of_icc_get(&pdev->dev, "gfx-mem"); diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c index 87c8b033ad1a..12e75ba360f9 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_device.c +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c @@ -18,6 +18,10 @@ bool snapshot_debugbus = false; MODULE_PARM_DESC(snapshot_debugbus, "Include debugbus sections in GPU devcoredump (if not fused off)"); module_param_named(snapshot_debugbus, snapshot_debugbus, bool, 0600); +bool allow_vram_carveout = false; +MODULE_PARM_DESC(allow_vram_carveout, "Allow using VRAM Carveout, in place of IOMMU"); +module_param_named(allow_vram_carveout, allow_vram_carveout, bool, 0600); + static const struct adreno_info gpulist[] = { { .rev = ADRENO_REV(2, 0, 0, 0), diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index 6cf9975e951e..f09175698827 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -191,8 +191,6 @@ adreno_iommu_create_address_space(struct msm_gpu *gpu, struct platform_device *pdev) { struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); - struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); - struct io_pgtable_domain_attr pgtbl_cfg; struct iommu_domain *iommu; struct msm_mmu *mmu; struct msm_gem_address_space *aspace; @@ -202,13 +200,18 @@ adreno_iommu_create_address_space(struct msm_gpu *gpu, if (!iommu) return NULL; - /* - * This allows GPU to set the bus attributes required to use system - * cache on behalf of the iommu page table walker. - */ - if (!IS_ERR(a6xx_gpu->htw_llc_slice)) { - pgtbl_cfg.quirks = IO_PGTABLE_QUIRK_ARM_OUTER_WBWA; - iommu_domain_set_attr(iommu, DOMAIN_ATTR_IO_PGTABLE_CFG, &pgtbl_cfg); + + if (adreno_is_a6xx(adreno_gpu)) { + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + struct io_pgtable_domain_attr pgtbl_cfg; + /* + * This allows GPU to set the bus attributes required to use system + * cache on behalf of the iommu page table walker. + */ + if (!IS_ERR(a6xx_gpu->htw_llc_slice)) { + pgtbl_cfg.quirks = IO_PGTABLE_QUIRK_ARM_OUTER_WBWA; + iommu_domain_set_attr(iommu, DOMAIN_ATTR_IO_PGTABLE_CFG, &pgtbl_cfg); + } } mmu = msm_iommu_new(&pdev->dev, iommu); diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h index c3775f79525a..b3d9a333591b 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h @@ -18,6 +18,7 @@ #include "adreno_pm4.xml.h" extern bool snapshot_debugbus; +extern bool allow_vram_carveout; enum { ADRENO_FW_PM4 = 0, @@ -211,6 +212,11 @@ static inline int adreno_is_a540(struct adreno_gpu *gpu) return gpu->revn == 540; } +static inline bool adreno_is_a6xx(struct adreno_gpu *gpu) +{ + return ((gpu->revn < 700 && gpu->revn > 599)); +} + static inline int adreno_is_a618(struct adreno_gpu *gpu) { return gpu->revn == 618; diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index 6e971d552911..3bc7ed21de28 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -693,6 +693,13 @@ static int dp_irq_hpd_handle(struct dp_display_private *dp, u32 data) return 0; } + if (state == ST_CONNECT_PENDING) { + /* wait until ST_CONNECTED */ + dp_add_event(dp, EV_IRQ_HPD_INT, 0, 1); /* delay = 1 */ + mutex_unlock(&dp->event_mutex); + return 0; + } + ret = dp_display_usbpd_attention_cb(&dp->pdev->dev); if (ret == -ECONNRESET) { /* cable unplugged */ dp->core_initialized = false; diff --git a/drivers/gpu/drm/msm/dp/dp_panel.c b/drivers/gpu/drm/msm/dp/dp_panel.c index 97dca3e378b7..d1780bcac8cc 100644 --- a/drivers/gpu/drm/msm/dp/dp_panel.c +++ b/drivers/gpu/drm/msm/dp/dp_panel.c @@ -167,12 +167,18 @@ int dp_panel_read_sink_caps(struct dp_panel *dp_panel, panel = container_of(dp_panel, struct dp_panel_private, dp_panel); rc = dp_panel_read_dpcd(dp_panel); + if (rc) { + DRM_ERROR("read dpcd failed %d\n", rc); + return rc; + } + bw_code = drm_dp_link_rate_to_bw_code(dp_panel->link_info.rate); - if (rc || !is_link_rate_valid(bw_code) || + if (!is_link_rate_valid(bw_code) || !is_lane_count_valid(dp_panel->link_info.num_lanes) || (bw_code > dp_panel->max_bw_code)) { - DRM_ERROR("read dpcd failed %d\n", rc); - return rc; + DRM_ERROR("Illegal link rate=%d lane=%d\n", dp_panel->link_info.rate, + dp_panel->link_info.num_lanes); + return -EINVAL; } if (dp_panel->dfp_present) { diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 535a0263ceeb..108c405e03dd 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -457,14 +457,14 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv) drm_mode_config_init(ddev); - /* Bind all our sub-components: */ - ret = component_bind_all(dev, ddev); + ret = msm_init_vram(ddev); if (ret) goto err_destroy_mdss; - ret = msm_init_vram(ddev); + /* Bind all our sub-components: */ + ret = component_bind_all(dev, ddev); if (ret) - goto err_msm_uninit; + goto err_destroy_mdss; dma_set_max_seg_size(dev, UINT_MAX); diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index 9a7c49bc394f..9d10739c4eb2 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -96,6 +96,8 @@ static struct page **get_pages(struct drm_gem_object *obj) { struct msm_gem_object *msm_obj = to_msm_bo(obj); + WARN_ON(!msm_gem_is_locked(obj)); + if (!msm_obj->pages) { struct drm_device *dev = obj->dev; struct page **p; @@ -988,6 +990,8 @@ void msm_gem_free_object(struct drm_gem_object *obj) if (msm_obj->pages) kvfree(msm_obj->pages); + put_iova_vmas(obj); + /* dma_buf_detach() grabs resv lock, so we need to unlock * prior to drm_prime_gem_destroy */ @@ -997,11 +1001,10 @@ void msm_gem_free_object(struct drm_gem_object *obj) } else { msm_gem_vunmap(obj); put_pages(obj); + put_iova_vmas(obj); msm_gem_unlock(obj); } - put_iova_vmas(obj); - drm_gem_object_release(obj); kfree(msm_obj); @@ -1115,6 +1118,8 @@ static struct drm_gem_object *_msm_gem_new(struct drm_device *dev, struct msm_gem_vma *vma; struct page **pages; + drm_gem_private_object_init(dev, obj, size); + msm_gem_lock(obj); vma = add_vma(obj, NULL); @@ -1126,9 +1131,9 @@ static struct drm_gem_object *_msm_gem_new(struct drm_device *dev, to_msm_bo(obj)->vram_node = &vma->node; - drm_gem_private_object_init(dev, obj, size); - + msm_gem_lock(obj); pages = get_pages(obj); + msm_gem_unlock(obj); if (IS_ERR(pages)) { ret = PTR_ERR(pages); goto fail; |