diff options
Diffstat (limited to 'drivers/gpu/drm/tegra')
| -rw-r--r-- | drivers/gpu/drm/tegra/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/tegra/drm.c | 13 | ||||
| -rw-r--r-- | drivers/gpu/drm/tegra/drm.h | 12 | ||||
| -rw-r--r-- | drivers/gpu/drm/tegra/fbdev.c | 98 | ||||
| -rw-r--r-- | drivers/gpu/drm/tegra/gem.c | 63 | ||||
| -rw-r--r-- | drivers/gpu/drm/tegra/gem.h | 21 | ||||
| -rw-r--r-- | drivers/gpu/drm/tegra/gr3d.c | 11 | ||||
| -rw-r--r-- | drivers/gpu/drm/tegra/hdmi.c | 2 |
8 files changed, 86 insertions, 135 deletions
diff --git a/drivers/gpu/drm/tegra/Kconfig b/drivers/gpu/drm/tegra/Kconfig index e688d8104652..8a3b16aac5d6 100644 --- a/drivers/gpu/drm/tegra/Kconfig +++ b/drivers/gpu/drm/tegra/Kconfig @@ -5,6 +5,7 @@ config DRM_TEGRA depends on COMMON_CLK depends on DRM depends on OF + select DRM_CLIENT_SELECTION select DRM_DISPLAY_DP_HELPER select DRM_DISPLAY_HDMI_HELPER select DRM_DISPLAY_HELPER diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index c9eb329665ec..bf3421667ecc 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -4,6 +4,7 @@ * Copyright (C) 2012-2016 NVIDIA CORPORATION. All rights reserved. */ +#include <linux/aperture.h> #include <linux/bitops.h> #include <linux/host1x.h> #include <linux/idr.h> @@ -12,9 +13,9 @@ #include <linux/platform_device.h> #include <linux/pm_runtime.h> -#include <drm/drm_aperture.h> #include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> +#include <drm/drm_client_setup.h> #include <drm/drm_debugfs.h> #include <drm/drm_drv.h> #include <drm/drm_fourcc.h> @@ -892,6 +893,8 @@ static const struct drm_driver tegra_drm_driver = { .dumb_create = tegra_bo_dumb_create, + TEGRA_FBDEV_DRIVER_OPS, + .ioctls = tegra_drm_ioctls, .num_ioctls = ARRAY_SIZE(tegra_drm_ioctls), .fops = &tegra_drm_fops, @@ -1153,8 +1156,8 @@ static int host1x_drm_probe(struct host1x_device *dev) if (host1x_drm_wants_iommu(dev) && device_iommu_mapped(dma_dev)) { tegra->domain = iommu_paging_domain_alloc(dma_dev); - if (!tegra->domain) { - err = -ENOMEM; + if (IS_ERR(tegra->domain)) { + err = PTR_ERR(tegra->domain); goto free; } @@ -1255,7 +1258,7 @@ static int host1x_drm_probe(struct host1x_device *dev) * will not expose any modesetting features. */ if (drm->mode_config.num_crtc > 0) { - err = drm_aperture_remove_framebuffers(&tegra_drm_driver); + err = aperture_remove_all_conflicting_devices(tegra_drm_driver.name); if (err < 0) goto hub; } else { @@ -1270,7 +1273,7 @@ static int host1x_drm_probe(struct host1x_device *dev) if (err < 0) goto hub; - tegra_fbdev_setup(drm); + drm_client_setup(drm, NULL); return 0; diff --git a/drivers/gpu/drm/tegra/drm.h b/drivers/gpu/drm/tegra/drm.h index 2f3781e04b0a..0b65e69f3a8a 100644 --- a/drivers/gpu/drm/tegra/drm.h +++ b/drivers/gpu/drm/tegra/drm.h @@ -25,6 +25,9 @@ /* XXX move to include/uapi/drm/drm_fourcc.h? */ #define DRM_FORMAT_MOD_NVIDIA_SECTOR_LAYOUT BIT_ULL(22) +struct drm_fb_helper; +struct drm_fb_helper_surface_size; + struct edid; struct reset_control; @@ -190,10 +193,13 @@ struct drm_framebuffer *tegra_fb_create(struct drm_device *drm, const struct drm_mode_fb_cmd2 *cmd); #ifdef CONFIG_DRM_FBDEV_EMULATION -void tegra_fbdev_setup(struct drm_device *drm); +int tegra_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper, + struct drm_fb_helper_surface_size *sizes); +#define TEGRA_FBDEV_DRIVER_OPS \ + .fbdev_probe = tegra_fbdev_driver_fbdev_probe #else -static inline void tegra_fbdev_setup(struct drm_device *drm) -{ } +#define TEGRA_FBDEV_DRIVER_OPS \ + .fbdev_probe = NULL #endif extern struct platform_driver tegra_display_hub_driver; diff --git a/drivers/gpu/drm/tegra/fbdev.c b/drivers/gpu/drm/tegra/fbdev.c index db6eaac3d30e..cd9d798f8870 100644 --- a/drivers/gpu/drm/tegra/fbdev.c +++ b/drivers/gpu/drm/tegra/fbdev.c @@ -66,8 +66,11 @@ static const struct fb_ops tegra_fb_ops = { .fb_destroy = tegra_fbdev_fb_destroy, }; -static int tegra_fbdev_probe(struct drm_fb_helper *helper, - struct drm_fb_helper_surface_size *sizes) +static const struct drm_fb_helper_funcs tegra_fbdev_helper_funcs = { +}; + +int tegra_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper, + struct drm_fb_helper_surface_size *sizes) { struct tegra_drm *tegra = helper->dev->dev_private; struct drm_device *drm = helper->dev; @@ -112,6 +115,7 @@ static int tegra_fbdev_probe(struct drm_fb_helper *helper, return PTR_ERR(fb); } + helper->funcs = &tegra_fbdev_helper_funcs; helper->fb = fb; helper->info = info; @@ -144,93 +148,3 @@ destroy: drm_framebuffer_remove(fb); return err; } - -static const struct drm_fb_helper_funcs tegra_fb_helper_funcs = { - .fb_probe = tegra_fbdev_probe, -}; - -/* - * struct drm_client - */ - -static void tegra_fbdev_client_unregister(struct drm_client_dev *client) -{ - struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client); - - if (fb_helper->info) { - drm_fb_helper_unregister_info(fb_helper); - } else { - drm_client_release(&fb_helper->client); - drm_fb_helper_unprepare(fb_helper); - kfree(fb_helper); - } -} - -static int tegra_fbdev_client_restore(struct drm_client_dev *client) -{ - drm_fb_helper_lastclose(client->dev); - - return 0; -} - -static int tegra_fbdev_client_hotplug(struct drm_client_dev *client) -{ - struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client); - struct drm_device *dev = client->dev; - int ret; - - if (dev->fb_helper) - return drm_fb_helper_hotplug_event(dev->fb_helper); - - ret = drm_fb_helper_init(dev, fb_helper); - if (ret) - goto err_drm_err; - - if (!drm_drv_uses_atomic_modeset(dev)) - drm_helper_disable_unused_functions(dev); - - ret = drm_fb_helper_initial_config(fb_helper); - if (ret) - goto err_drm_fb_helper_fini; - - return 0; - -err_drm_fb_helper_fini: - drm_fb_helper_fini(fb_helper); -err_drm_err: - drm_err(dev, "Failed to setup fbdev emulation (ret=%d)\n", ret); - return ret; -} - -static const struct drm_client_funcs tegra_fbdev_client_funcs = { - .owner = THIS_MODULE, - .unregister = tegra_fbdev_client_unregister, - .restore = tegra_fbdev_client_restore, - .hotplug = tegra_fbdev_client_hotplug, -}; - -void tegra_fbdev_setup(struct drm_device *dev) -{ - struct drm_fb_helper *helper; - int ret; - - drm_WARN(dev, !dev->registered, "Device has not been registered.\n"); - drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n"); - - helper = kzalloc(sizeof(*helper), GFP_KERNEL); - if (!helper) - return; - drm_fb_helper_prepare(dev, helper, 32, &tegra_fb_helper_funcs); - - ret = drm_client_init(dev, &helper->client, "fbdev", &tegra_fbdev_client_funcs); - if (ret) - goto err_drm_client_init; - - drm_client_register(&helper->client); - - return; - -err_drm_client_init: - drm_fb_helper_unprepare(helper); - kfree(helper); -} diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c index b4eb030ea961..d275404ad0e9 100644 --- a/drivers/gpu/drm/tegra/gem.c +++ b/drivers/gpu/drm/tegra/gem.c @@ -76,8 +76,8 @@ static struct host1x_bo_mapping *tegra_bo_pin(struct device *dev, struct host1x_ /* * Imported buffers need special treatment to satisfy the semantics of DMA-BUF. */ - if (gem->import_attach) { - struct dma_buf *buf = gem->import_attach->dmabuf; + if (obj->dma_buf) { + struct dma_buf *buf = obj->dma_buf; map->attach = dma_buf_attach(buf, dev); if (IS_ERR(map->attach)) { @@ -184,8 +184,8 @@ static void *tegra_bo_mmap(struct host1x_bo *bo) if (obj->vaddr) return obj->vaddr; - if (obj->gem.import_attach) { - ret = dma_buf_vmap_unlocked(obj->gem.import_attach->dmabuf, &map); + if (obj->dma_buf) { + ret = dma_buf_vmap_unlocked(obj->dma_buf, &map); if (ret < 0) return ERR_PTR(ret); @@ -208,8 +208,8 @@ static void tegra_bo_munmap(struct host1x_bo *bo, void *addr) if (obj->vaddr) return; - if (obj->gem.import_attach) - return dma_buf_vunmap_unlocked(obj->gem.import_attach->dmabuf, &map); + if (obj->dma_buf) + return dma_buf_vunmap_unlocked(obj->dma_buf, &map); vunmap(addr); } @@ -465,27 +465,32 @@ static struct tegra_bo *tegra_bo_import(struct drm_device *drm, if (IS_ERR(bo)) return bo; - attach = dma_buf_attach(buf, drm->dev); - if (IS_ERR(attach)) { - err = PTR_ERR(attach); - goto free; - } - - get_dma_buf(buf); + /* + * If we need to use IOMMU API to map the dma-buf into the internally managed + * domain, map it first to the DRM device to get an sgt. + */ + if (tegra->domain) { + attach = dma_buf_attach(buf, drm->dev); + if (IS_ERR(attach)) { + err = PTR_ERR(attach); + goto free; + } - bo->sgt = dma_buf_map_attachment_unlocked(attach, DMA_TO_DEVICE); - if (IS_ERR(bo->sgt)) { - err = PTR_ERR(bo->sgt); - goto detach; - } + bo->sgt = dma_buf_map_attachment_unlocked(attach, DMA_TO_DEVICE); + if (IS_ERR(bo->sgt)) { + err = PTR_ERR(bo->sgt); + goto detach; + } - if (tegra->domain) { err = tegra_bo_iommu_map(tegra, bo); if (err < 0) goto detach; + + bo->gem.import_attach = attach; } - bo->gem.import_attach = attach; + get_dma_buf(buf); + bo->dma_buf = buf; return bo; @@ -516,17 +521,21 @@ void tegra_bo_free_object(struct drm_gem_object *gem) dev_name(mapping->dev)); } - if (tegra->domain) + if (tegra->domain) { tegra_bo_iommu_unmap(tegra, bo); - if (gem->import_attach) { - 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); + if (gem->import_attach) { + dma_buf_unmap_attachment_unlocked(gem->import_attach, bo->sgt, + DMA_TO_DEVICE); + dma_buf_detach(gem->import_attach->dmabuf, gem->import_attach); + } } + tegra_bo_free(gem->dev, bo); + + if (bo->dma_buf) + dma_buf_put(bo->dma_buf); + drm_gem_object_release(gem); kfree(bo); } diff --git a/drivers/gpu/drm/tegra/gem.h b/drivers/gpu/drm/tegra/gem.h index cb5146a67668..bf2cbd48eb3f 100644 --- a/drivers/gpu/drm/tegra/gem.h +++ b/drivers/gpu/drm/tegra/gem.h @@ -32,6 +32,26 @@ struct tegra_bo_tiling { enum tegra_bo_sector_layout sector_layout; }; +/* + * How memory is referenced within a tegra_bo: + * + * Buffer source | Mapping API(*) | Fields + * ---------------+-----------------+--------------- + * Allocated here | DMA API | iova (IOVA mapped to drm->dev), vaddr (CPU VA) + * + * Allocated here | IOMMU API | pages/num_pages (Phys. memory), sgt (Mapped to drm->dev), + * | iova/size (Mapped to domain) + * + * Imported | DMA API | dma_buf (Imported dma_buf) + * + * Imported | IOMMU API | dma_buf (Imported dma_buf), + * | gem->import_attach (Attachment on drm->dev), + * | sgt (Mapped to drm->dev) + * | iova/size (Mapped to domain) + * + * (*) If tegra->domain is set, i.e. TegraDRM IOMMU domain is directly managed through IOMMU API, + * this is IOMMU API. Otherwise DMA API. + */ struct tegra_bo { struct drm_gem_object gem; struct host1x_bo base; @@ -39,6 +59,7 @@ struct tegra_bo { struct sg_table *sgt; dma_addr_t iova; void *vaddr; + struct dma_buf *dma_buf; struct drm_mm_node *mm; unsigned long num_pages; diff --git a/drivers/gpu/drm/tegra/gr3d.c b/drivers/gpu/drm/tegra/gr3d.c index 4de1ea0fc7c0..caee824832b3 100644 --- a/drivers/gpu/drm/tegra/gr3d.c +++ b/drivers/gpu/drm/tegra/gr3d.c @@ -375,6 +375,7 @@ static int gr3d_init_power(struct device *dev, struct gr3d *gr3d) struct dev_pm_domain_attach_data pd_data = { .pd_names = (const char *[]) { "3d0", "3d1" }, .num_pd_names = 2, + .pd_flags = PD_FLAG_REQUIRED_OPP, }; int err; @@ -409,7 +410,7 @@ static int gr3d_init_power(struct device *dev, struct gr3d *gr3d) if (dev->pm_domain) return 0; - err = dev_pm_domain_attach_list(dev, &pd_data, &gr3d->pd_list); + err = devm_pm_domain_attach_list(dev, &pd_data, &gr3d->pd_list); if (err < 0) return err; @@ -503,13 +504,13 @@ static int gr3d_probe(struct platform_device *pdev) err = devm_tegra_core_dev_init_opp_table_common(&pdev->dev); if (err) - goto err; + return err; err = host1x_client_register(&gr3d->client.base); if (err < 0) { dev_err(&pdev->dev, "failed to register host1x client: %d\n", err); - goto err; + return err; } /* initialize address register map */ @@ -517,9 +518,6 @@ static int gr3d_probe(struct platform_device *pdev) set_bit(gr3d_addr_regs[i], gr3d->addr_regs); return 0; -err: - dev_pm_domain_detach_list(gr3d->pd_list); - return err; } static void gr3d_remove(struct platform_device *pdev) @@ -528,7 +526,6 @@ static void gr3d_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); host1x_client_unregister(&gr3d->client.base); - dev_pm_domain_detach_list(gr3d->pd_list); } static int __maybe_unused gr3d_runtime_suspend(struct device *dev) diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c index 09987e372e3e..6bf2dae82ca0 100644 --- a/drivers/gpu/drm/tegra/hdmi.c +++ b/drivers/gpu/drm/tegra/hdmi.c @@ -434,7 +434,7 @@ tegra_hdmi_get_audio_config(unsigned int audio_freq, unsigned int pix_clock, static void tegra_hdmi_setup_audio_fs_tables(struct tegra_hdmi *hdmi) { - const unsigned int freqs[] = { + static const unsigned int freqs[] = { 32000, 44100, 48000, 88200, 96000, 176400, 192000 }; unsigned int i; |