diff options
Diffstat (limited to 'drivers/gpu/drm/exynos')
25 files changed, 1412 insertions, 627 deletions
diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig index fc345d4..86fb75d 100644 --- a/drivers/gpu/drm/exynos/Kconfig +++ b/drivers/gpu/drm/exynos/Kconfig @@ -10,6 +10,12 @@ config DRM_EXYNOS Choose this option if you have a Samsung SoC EXYNOS chipset. If M is selected the module will be called exynosdrm. +config DRM_EXYNOS_IOMMU + bool "EXYNOS DRM IOMMU Support" + depends on DRM_EXYNOS && EXYNOS_IOMMU && ARM_DMA_USE_IOMMU + help + Choose this option if you want to use IOMMU feature for DRM. + config DRM_EXYNOS_DMABUF bool "EXYNOS DRM DMABUF" depends on DRM_EXYNOS diff --git a/drivers/gpu/drm/exynos/Makefile b/drivers/gpu/drm/exynos/Makefile index eb651ca..26813b8 100644 --- a/drivers/gpu/drm/exynos/Makefile +++ b/drivers/gpu/drm/exynos/Makefile @@ -8,6 +8,7 @@ exynosdrm-y := exynos_drm_drv.o exynos_drm_encoder.o exynos_drm_connector.o \ exynos_drm_buf.o exynos_drm_gem.o exynos_drm_core.o \ exynos_drm_plane.o +exynosdrm-$(CONFIG_DRM_EXYNOS_IOMMU) += exynos_drm_iommu.o exynosdrm-$(CONFIG_DRM_EXYNOS_DMABUF) += exynos_drm_dmabuf.o exynosdrm-$(CONFIG_DRM_EXYNOS_FIMD) += exynos_drm_fimd.o exynosdrm-$(CONFIG_DRM_EXYNOS_HDMI) += exynos_hdmi.o exynos_mixer.o \ diff --git a/drivers/gpu/drm/exynos/exynos_drm_buf.c b/drivers/gpu/drm/exynos/exynos_drm_buf.c index 118c117..72bf97b 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_buf.c +++ b/drivers/gpu/drm/exynos/exynos_drm_buf.c @@ -33,73 +33,42 @@ static int lowlevel_buffer_allocate(struct drm_device *dev, unsigned int flags, struct exynos_drm_gem_buf *buf) { - dma_addr_t start_addr; - unsigned int npages, i = 0; - struct scatterlist *sgl; int ret = 0; + enum dma_attr attr = DMA_ATTR_FORCE_CONTIGUOUS; DRM_DEBUG_KMS("%s\n", __FILE__); - if (IS_NONCONTIG_BUFFER(flags)) { - DRM_DEBUG_KMS("not support allocation type.\n"); - return -EINVAL; - } - if (buf->dma_addr) { DRM_DEBUG_KMS("already allocated.\n"); return 0; } - if (buf->size >= SZ_1M) { - npages = buf->size >> SECTION_SHIFT; - buf->page_size = SECTION_SIZE; - } else if (buf->size >= SZ_64K) { - npages = buf->size >> 16; - buf->page_size = SZ_64K; - } else { - npages = buf->size >> PAGE_SHIFT; - buf->page_size = PAGE_SIZE; - } + init_dma_attrs(&buf->dma_attrs); - buf->sgt = kzalloc(sizeof(struct sg_table), GFP_KERNEL); - if (!buf->sgt) { - DRM_ERROR("failed to allocate sg table.\n"); - return -ENOMEM; - } + if (flags & EXYNOS_BO_NONCONTIG) + attr = DMA_ATTR_WRITE_COMBINE; - ret = sg_alloc_table(buf->sgt, npages, GFP_KERNEL); - if (ret < 0) { - DRM_ERROR("failed to initialize sg table.\n"); - kfree(buf->sgt); - buf->sgt = NULL; - return -ENOMEM; - } + dma_set_attr(attr, &buf->dma_attrs); - buf->kvaddr = dma_alloc_writecombine(dev->dev, buf->size, - &buf->dma_addr, GFP_KERNEL); + buf->kvaddr = dma_alloc_attrs(dev->dev, buf->size, + &buf->dma_addr, GFP_KERNEL, &buf->dma_attrs); if (!buf->kvaddr) { DRM_ERROR("failed to allocate buffer.\n"); - ret = -ENOMEM; - goto err1; + return -ENOMEM; } - buf->pages = kzalloc(sizeof(struct page) * npages, GFP_KERNEL); - if (!buf->pages) { - DRM_ERROR("failed to allocate pages.\n"); + buf->sgt = kzalloc(sizeof(struct sg_table), GFP_KERNEL); + if (!buf->sgt) { + DRM_ERROR("failed to allocate sg table.\n"); ret = -ENOMEM; - goto err2; + goto err_free_attrs; } - sgl = buf->sgt->sgl; - start_addr = buf->dma_addr; - - while (i < npages) { - buf->pages[i] = phys_to_page(start_addr); - sg_set_page(sgl, buf->pages[i], buf->page_size, 0); - sg_dma_address(sgl) = start_addr; - start_addr += buf->page_size; - sgl = sg_next(sgl); - i++; + ret = dma_get_sgtable(dev->dev, buf->sgt, buf->kvaddr, buf->dma_addr, + buf->size); + if (ret < 0) { + DRM_ERROR("failed to get sgtable.\n"); + goto err_free_sgt; } DRM_DEBUG_KMS("vaddr(0x%lx), dma_addr(0x%lx), size(0x%lx)\n", @@ -108,14 +77,14 @@ static int lowlevel_buffer_allocate(struct drm_device *dev, buf->size); return ret; -err2: - dma_free_writecombine(dev->dev, buf->size, buf->kvaddr, - (dma_addr_t)buf->dma_addr); - buf->dma_addr = (dma_addr_t)NULL; -err1: - sg_free_table(buf->sgt); + +err_free_sgt: kfree(buf->sgt); buf->sgt = NULL; +err_free_attrs: + dma_free_attrs(dev->dev, buf->size, buf->kvaddr, + (dma_addr_t)buf->dma_addr, &buf->dma_attrs); + buf->dma_addr = (dma_addr_t)NULL; return ret; } @@ -125,16 +94,6 @@ static void lowlevel_buffer_deallocate(struct drm_device *dev, { DRM_DEBUG_KMS("%s.\n", __FILE__); - /* - * release only physically continuous memory and - * non-continuous memory would be released by exynos - * gem framework. - */ - if (IS_NONCONTIG_BUFFER(flags)) { - DRM_DEBUG_KMS("not support allocation type.\n"); - return; - } - if (!buf->dma_addr) { DRM_DEBUG_KMS("dma_addr is invalid.\n"); return; @@ -150,11 +109,8 @@ static void lowlevel_buffer_deallocate(struct drm_device *dev, kfree(buf->sgt); buf->sgt = NULL; - kfree(buf->pages); - buf->pages = NULL; - - dma_free_writecombine(dev->dev, buf->size, buf->kvaddr, - (dma_addr_t)buf->dma_addr); + dma_free_attrs(dev->dev, buf->size, buf->kvaddr, + (dma_addr_t)buf->dma_addr, &buf->dma_attrs); buf->dma_addr = (dma_addr_t)NULL; } diff --git a/drivers/gpu/drm/exynos/exynos_drm_buf.h b/drivers/gpu/drm/exynos/exynos_drm_buf.h index 3388e4e..25cf162 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_buf.h +++ b/drivers/gpu/drm/exynos/exynos_drm_buf.h @@ -34,12 +34,12 @@ struct exynos_drm_gem_buf *exynos_drm_init_buf(struct drm_device *dev, void exynos_drm_fini_buf(struct drm_device *dev, struct exynos_drm_gem_buf *buffer); -/* allocate physical memory region and setup sgt and pages. */ +/* allocate physical memory region and setup sgt. */ int exynos_drm_alloc_buf(struct drm_device *dev, struct exynos_drm_gem_buf *buf, unsigned int flags); -/* release physical memory region, sgt and pages. */ +/* release physical memory region, and sgt. */ void exynos_drm_free_buf(struct drm_device *dev, unsigned int flags, struct exynos_drm_gem_buf *buffer); diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c index fce245f..2efa4b0 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c @@ -236,16 +236,21 @@ static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc, goto out; } + spin_lock_irq(&dev->event_lock); list_add_tail(&event->base.link, &dev_priv->pageflip_event_list); + spin_unlock_irq(&dev->event_lock); crtc->fb = fb; ret = exynos_drm_crtc_mode_set_base(crtc, crtc->x, crtc->y, NULL); if (ret) { crtc->fb = old_fb; + + spin_lock_irq(&dev->event_lock); drm_vblank_put(dev, exynos_crtc->pipe); list_del(&event->base.link); + spin_unlock_irq(&dev->event_lock); goto out; } diff --git a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c index fae1f2e..539da9f 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c @@ -30,26 +30,22 @@ #include <linux/dma-buf.h> -static struct sg_table *exynos_pages_to_sg(struct page **pages, int nr_pages, - unsigned int page_size) +static struct sg_table *exynos_get_sgt(struct drm_device *drm_dev, + struct exynos_drm_gem_buf *buf) { struct sg_table *sgt = NULL; - struct scatterlist *sgl; - int i, ret; + int ret; sgt = kzalloc(sizeof(*sgt), GFP_KERNEL); if (!sgt) goto out; - ret = sg_alloc_table(sgt, nr_pages, GFP_KERNEL); - if (ret) + ret = dma_get_sgtable(drm_dev->dev, sgt, buf->kvaddr, + buf->dma_addr, buf->size); + if (ret < 0) { + DRM_ERROR("failed to get sgtable.\n"); goto err_free_sgt; - - if (page_size < PAGE_SIZE) - page_size = PAGE_SIZE; - - for_each_sg(sgt->sgl, sgl, nr_pages, i) - sg_set_page(sgl, pages[i], page_size, 0); + } return sgt; @@ -68,32 +64,30 @@ static struct sg_table * struct drm_device *dev = gem_obj->base.dev; struct exynos_drm_gem_buf *buf; struct sg_table *sgt = NULL; - unsigned int npages; int nents; DRM_DEBUG_PRIME("%s\n", __FILE__); - mutex_lock(&dev->struct_mutex); - buf = gem_obj->buffer; - - /* there should always be pages allocated. */ - if (!buf->pages) { - DRM_ERROR("pages is null.\n"); - goto err_unlock; + if (!buf) { + DRM_ERROR("buffer is null.\n"); + return sgt; } - npages = buf->size / buf->page_size; + mutex_lock(&dev->struct_mutex); - sgt = exynos_pages_to_sg(buf->pages, npages, buf->page_size); - if (!sgt) { - DRM_DEBUG_PRIME("exynos_pages_to_sg returned NULL!\n"); + sgt = exynos_get_sgt(dev, buf); + if (!sgt) goto err_unlock; - } + nents = dma_map_sg(attach->dev, sgt->sgl, sgt->nents, dir); + if (!nents) { + DRM_ERROR("failed to map sgl with iommu.\n"); + sgt = NULL; + goto err_unlock; + } - DRM_DEBUG_PRIME("npages = %d buffer size = 0x%lx page_size = 0x%lx\n", - npages, buf->size, buf->page_size); + DRM_DEBUG_PRIME("buffer size = 0x%lx\n", buf->size); err_unlock: mutex_unlock(&dev->struct_mutex); @@ -105,6 +99,7 @@ static void exynos_gem_unmap_dma_buf(struct dma_buf_attachment *attach, enum dma_data_direction dir) { dma_unmap_sg(attach->dev, sgt->sgl, sgt->nents, dir); + sg_free_table(sgt); kfree(sgt); sgt = NULL; @@ -196,7 +191,6 @@ struct drm_gem_object *exynos_dmabuf_prime_import(struct drm_device *drm_dev, struct scatterlist *sgl; struct exynos_drm_gem_obj *exynos_gem_obj; struct exynos_drm_gem_buf *buffer; - struct page *page; int ret; DRM_DEBUG_PRIME("%s\n", __FILE__); @@ -233,38 +227,27 @@ struct drm_gem_object *exynos_dmabuf_prime_import(struct drm_device *drm_dev, goto err_unmap_attach; } - buffer->pages = kzalloc(sizeof(*page) * sgt->nents, GFP_KERNEL); - if (!buffer->pages) { - DRM_ERROR("failed to allocate pages.\n"); - ret = -ENOMEM; - goto err_free_buffer; - } - exynos_gem_obj = exynos_drm_gem_init(drm_dev, dma_buf->size); if (!exynos_gem_obj) { ret = -ENOMEM; - goto err_free_pages; + goto err_free_buffer; } sgl = sgt->sgl; - if (sgt->nents == 1) { - buffer->dma_addr = sg_dma_address(sgt->sgl); - buffer->size = sg_dma_len(sgt->sgl); + buffer->size = dma_buf->size; + buffer->dma_addr = sg_dma_address(sgl); + if (sgt->nents == 1) { /* always physically continuous memory if sgt->nents is 1. */ exynos_gem_obj->flags |= EXYNOS_BO_CONTIG; } else { - unsigned int i = 0; - - buffer->dma_addr = sg_dma_address(sgl); - while (i < sgt->nents) { - buffer->pages[i] = sg_page(sgl); - buffer->size += sg_dma_len(sgl); - sgl = sg_next(sgl); - i++; - } - + /* + * this case could be CONTIG or NONCONTIG type but for now + * sets NONCONTIG. + * TODO. we have to find a way that exporter can notify + * the type of its own buffer to importer. + */ exynos_gem_obj->flags |= EXYNOS_BO_NONCONTIG; } @@ -277,9 +260,6 @@ struct drm_gem_object *exynos_dmabuf_prime_import(struct drm_device *drm_dev, return &exynos_gem_obj->base; -err_free_pages: - kfree(buffer->pages); - buffer->pages = NULL; err_free_buffer: kfree(buffer); buffer = NULL; diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index 1de7baa..2b287d2 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -40,6 +40,7 @@ #include "exynos_drm_vidi.h" #include "exynos_drm_dmabuf.h" #include "exynos_drm_g2d.h" +#include "exynos_drm_iommu.h" #define DRIVER_NAME "exynos" #define DRIVER_DESC "Samsung SoC DRM" @@ -66,6 +67,18 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags) INIT_LIST_HEAD(&private->pageflip_event_list); dev->dev_private = (void *)private; + /* + * create mapping to manage iommu table and set a pointer to iommu + * mapping structure to iommu_mapping of private data. + * also this iommu_mapping can be used to check if iommu is supported + * or not. + */ + ret = drm_create_iommu_mapping(dev); + if (ret < 0) { + DRM_ERROR("failed to create iommu mapping.\n"); + goto err_crtc; + } + drm_mode_config_init(dev); /* init kms poll for handling hpd */ @@ -80,7 +93,7 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags) for (nr = 0; nr < MAX_CRTC; nr++) { ret = exynos_drm_crtc_create(dev, nr); if (ret) - goto err_crtc; + goto err_release_iommu_mapping; } for (nr = 0; nr < MAX_PLANE; nr++) { @@ -89,12 +102,12 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags) plane = exynos_plane_init(dev, possible_crtcs, false); if (!plane) - goto err_crtc; + goto err_release_iommu_mapping; } ret = drm_vblank_init(dev, MAX_CRTC); if (ret) - goto err_crtc; + goto err_release_iommu_mapping; /* * probe sub drivers such as display controller and hdmi driver, @@ -126,6 +139,8 @@ err_drm_device: exynos_drm_device_unregister(dev); err_vblank: drm_vblank_cleanup(dev); +err_release_iommu_mapping: + drm_release_iommu_mapping(dev); err_crtc: drm_mode_config_cleanup(dev); kfree(private); @@ -142,6 +157,8 @@ static int exynos_drm_unload(struct drm_device *dev) drm_vblank_cleanup(dev); drm_kms_helper_poll_fini(dev); drm_mode_config_cleanup(dev); + + drm_release_iommu_mapping(dev); kfree(dev->dev_private); dev->dev_private = NULL; diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index a342310..9c9c2dc 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -231,8 +231,7 @@ struct exynos_drm_g2d_private { struct device *dev; struct list_head inuse_cmdlist; struct list_head event_list; - struct list_head gem_list; - unsigned int gem_nr; + struct list_head userptr_list; }; struct drm_exynos_file_private { @@ -241,6 +240,13 @@ struct drm_exynos_file_private { /* * Exynos drm private structure. + * + * @da_start: start address to device address space. + * with iommu, device address space starts from this address + * otherwise default one. + * @da_space_size: size of device address space. + * if 0 then default value is used for it. + * @da_space_order: order to device address space. */ struct exynos_drm_private { struct drm_fb_helper *fb_helper; @@ -255,6 +261,10 @@ struct exynos_drm_private { struct drm_crtc *crtc[MAX_CRTC]; struct drm_property *plane_zpos_property; struct drm_property *crtc_mode_property; + + unsigned long da_start; + unsigned long da_space_size; + unsigned long da_space_order; }; /* diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c index 241ad1e..d9afb11 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c +++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c @@ -226,8 +226,47 @@ static void exynos_drm_encoder_commit(struct drm_encoder *encoder) * already updated or not by exynos_drm_encoder_dpms function. */ exynos_encoder->updated = true; + + /* + * In case of setcrtc, there is no way to update encoder's dpms + * so update it here. + */ + exynos_encoder->dpms = DRM_MODE_DPMS_ON; +} + +void exynos_drm_encoder_complete_scanout(struct drm_framebuffer *fb) +{ + struct exynos_drm_encoder *exynos_encoder; + struct exynos_drm_overlay_ops *overlay_ops; + struct exynos_drm_manager *manager; + struct drm_device *dev = fb->dev; + struct drm_encoder *encoder; + + /* + * make sure that overlay data are updated to real hardware + * for all encoders. + */ + list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + exynos_encoder = to_exynos_encoder(encoder); + + /* if exynos was disabled, just ignor it. */ + if (exynos_encoder->dpms > DRM_MODE_DPMS_ON) + continue; + + manager = exynos_encoder->manager; + overlay_ops = manager->overlay_ops; + + /* + * wait for vblank interrupt + * - this makes sure that overlay data are updated to + * real hardware. + */ + if (overlay_ops->wait_for_vblank) + overlay_ops->wait_for_vblank(manager->dev); + } } + static void exynos_drm_encoder_disable(struct drm_encoder *encoder) { struct drm_plane *plane; @@ -499,14 +538,4 @@ void exynos_drm_encoder_plane_disable(struct drm_encoder *encoder, void *data) if (overlay_ops && overlay_ops->disable) overlay_ops->disable(manager->dev, zpos); - - /* - * wait for vblank interrupt - * - this makes sure that hardware overlay is disabled to avoid - * for the dma accesses to memory after gem buffer was released - * because the setting for disabling the overlay will be updated - * at vsync. - */ - if (overlay_ops->wait_for_vblank) - overlay_ops->wait_for_vblank(manager->dev); } diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.h b/drivers/gpu/drm/exynos/exynos_drm_encoder.h index 6470d9d..88bb25a 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_encoder.h +++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.h @@ -46,5 +46,6 @@ void exynos_drm_encoder_plane_mode_set(struct drm_encoder *encoder, void *data); void exynos_drm_encoder_plane_commit(struct drm_encoder *encoder, void *data); void exynos_drm_encoder_plane_enable(struct drm_encoder *encoder, void *data); void exynos_drm_encoder_plane_disable(struct drm_encoder *encoder, void *data); +void exynos_drm_encoder_complete_scanout(struct drm_framebuffer *fb); #endif diff --git a/drivers/gpu/drm/exynos/exynos_drm_fb.c b/drivers/gpu/drm/exynos/exynos_drm_fb.c index 4ef4cd3..7413f4b 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fb.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fb.c @@ -30,10 +30,13 @@ #include <drm/drm_crtc.h> #include <drm/drm_crtc_helper.h> #include <drm/drm_fb_helper.h> +#include <uapi/drm/exynos_drm.h> #include "exynos_drm_drv.h" #include "exynos_drm_fb.h" #include "exynos_drm_gem.h" +#include "exynos_drm_iommu.h" +#include "exynos_drm_encoder.h" #define to_exynos_fb(x) container_of(x, struct exynos_drm_fb, fb) @@ -50,6 +53,32 @@ struct exynos_drm_fb { struct exynos_drm_gem_obj *exynos_gem_obj[MAX_FB_BUFFER]; }; +static int check_fb_gem_memory_type(struct drm_device *drm_dev, + struct exynos_drm_gem_obj *exynos_gem_obj) +{ + unsigned int flags; + + /* + * if exynos drm driver supports iommu then framebuffer can use + * all the buffer types. + */ + if (is_drm_iommu_supported(drm_dev)) + return 0; + + flags = exynos_gem_obj->flags; + + /* + * without iommu support, not support physically non-continuous memory + * for framebuffer. + */ + if (IS_NONCONTIG_BUFFER(flags)) { + DRM_ERROR("cannot use this gem memory type for fb.\n"); + return -EINVAL; + } + + return 0; +} + static void exynos_drm_fb_destroy(struct drm_framebuffer *fb) { struct exynos_drm_fb *exynos_fb = to_exynos_fb(fb); @@ -57,6 +86,9 @@ static void exynos_drm_fb_destroy(struct drm_framebuffer *fb) DRM_DEBUG_KMS("%s\n", __FILE__); + /* make sure that overlay data are updated before relesing fb. */ + exynos_drm_encoder_complete_scanout(fb); + drm_framebuffer_cleanup(fb); for (i = 0; i < ARRAY_SIZE(exynos_fb->exynos_gem_obj); i++) { @@ -128,14 +160,25 @@ exynos_drm_framebuffer_init(struct drm_device *dev, struct drm_gem_object *obj) { struct exynos_drm_fb *exynos_fb; + struct exynos_drm_gem_obj *exynos_gem_obj; int ret; + exynos_gem_obj = to_exynos_gem_obj(obj); + + ret = check_fb_gem_memory_type(dev, exynos_gem_obj); + if (ret < 0) { + DRM_ERROR("cannot use this gem memory type for fb.\n"); + return ERR_PTR(-EINVAL); + } + exynos_fb = kzalloc(sizeof(*exynos_fb), GFP_KERNEL); if (!exynos_fb) { DRM_ERROR("failed to allocate exynos drm framebuffer\n"); return ERR_PTR(-ENOMEM); } + exynos_fb->exynos_gem_obj[0] = exynos_gem_obj; + ret = drm_framebuffer_init(dev, &exynos_fb->fb, &exynos_drm_fb_funcs); if (ret) { DRM_ERROR("failed to initialize framebuffer\n"); @@ -143,7 +186,6 @@ exynos_drm_framebuffer_init(struct drm_device *dev, } drm_helper_mode_fill_fb_struct(&exynos_fb->fb, mode_cmd); - exynos_fb->exynos_gem_obj[0] = to_exynos_gem_obj(obj); return &exynos_fb->fb; } @@ -214,6 +256,9 @@ exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv, DRM_DEBUG_KMS("buf_cnt = %d\n", exynos_fb->buf_cnt); for (i = 1; i < exynos_fb->buf_cnt; i++) { + struct exynos_drm_gem_obj *exynos_gem_obj; + int ret; + obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[i]); if (!obj) { @@ -222,6 +267,15 @@ exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv, return ERR_PTR(-ENOENT); } + exynos_gem_obj = to_exynos_gem_obj(obj); + + ret = check_fb_gem_memory_type(dev, exynos_gem_obj); + if (ret < 0) { + DRM_ERROR("cannot use this gem memory type for fb.\n"); + exynos_drm_fb_destroy(fb); + return ERR_PTR(ret); + } + exynos_fb->exynos_gem_obj[i] = to_exynos_gem_obj(obj); } diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c index 67eb6ba..a223279 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c @@ -46,8 +46,38 @@ struct exynos_drm_fbdev { struct exynos_drm_gem_obj *exynos_gem_obj; }; +static int exynos_drm_fb_mmap(struct fb_info *info, + struct vm_area_struct *vma) +{ + struct drm_fb_helper *helper = info->par; + struct exynos_drm_fbdev *exynos_fbd = to_exynos_fbdev(helper); + struct exynos_drm_gem_obj *exynos_gem_obj = exynos_fbd->exynos_gem_obj; + struct exynos_drm_gem_buf *buffer = exynos_gem_obj->buffer; + unsigned long vm_size; + int ret; + + DRM_DEBUG_KMS("%s\n", __func__); + + vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; + + vm_size = vma->vm_end - vma->vm_start; + + if (vm_size > buffer->size) + return -EINVAL; + + ret = dma_mmap_attrs(helper->dev->dev, vma, buffer->kvaddr, + buffer->dma_addr, buffer->size, &buffer->dma_attrs); + if (ret < 0) { + DRM_ERROR("failed to mmap.\n"); + return ret; + } + + return 0; +} + static struct fb_ops exynos_drm_fb_ops = { .owner = THIS_MODULE, + .fb_mmap = exynos_drm_fb_mmap, .fb_fillrect = cfb_fillrect, .fb_copyarea = cfb_copyarea, .fb_imageblit = cfb_imageblit, @@ -87,7 +117,8 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper, dev->mode_config.fb_base = (resource_size_t)buffer->dma_addr; fbi->screen_base = buffer->kvaddr + offset; - fbi->fix.smem_start = (unsigned long)(buffer->dma_addr + offset); + fbi->fix.smem_start = (unsigned long) + (page_to_phys(sg_page(buffer->sgt->sgl)) + offset); fbi->screen_size = size; fbi->fix.smem_len = size; diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index 130a2b5..00bd266 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -25,6 +25,7 @@ #include "exynos_drm_drv.h" #include "exynos_drm_fbdev.h" #include "exynos_drm_crtc.h" +#include "exynos_drm_iommu.h" /* * FIMD is stand for Fully Interactive Mobile Display and @@ -61,11 +62,11 @@ struct fimd_driver_data { unsigned int timing_base; }; -struct fimd_driver_data exynos4_fimd_driver_data = { +static struct fimd_driver_data exynos4_fimd_driver_data = { .timing_base = 0x0, }; -struct fimd_driver_data exynos5_fimd_driver_data = { +static struct fimd_driver_data exynos5_fimd_driver_data = { .timing_base = 0x20000, }; @@ -623,7 +624,6 @@ static void fimd_finish_pageflip(struct drm_device *drm_dev, int crtc) struct drm_pending_vblank_event *e, *t; struct timeval now; unsigned long flags; - bool is_checked = false; spin_lock_irqsave(&drm_dev->event_lock, flags); @@ -633,8 +633,6 @@ static void fimd_finish_pageflip(struct drm_device *drm_dev, int crtc) if (crtc != e->pipe) continue; - is_checked = true; - do_gettimeofday(&now); e->event.sequence = 0; e->event.tv_sec = now.tv_sec; @@ -642,22 +640,7 @@ static void fimd_finish_pageflip(struct drm_device *drm_dev, int crtc) list_move_tail(&e->base.link, &e->base.file_priv->event_list); wake_up_interruptible(&e->base.file_priv->event_wait); - } - - if (is_checked) { - /* - * call drm_vblank_put only in case that drm_vblank_get was - * called. - */ - if (atomic_read(&drm_dev->vblank_refcount[crtc]) > 0) - drm_vblank_put(drm_dev, crtc); - - /* - * don't off vblank if vblank_disable_allowed is 1, - * because vblank would be off by timer handler. - */ - if (!drm_dev->vblank_disable_allowed) - drm_vblank_off(drm_dev, crtc); + drm_vblank_put(drm_dev, crtc); } spin_unlock_irqrestore(&drm_dev->event_lock, flags); @@ -709,6 +692,10 @@ static int fimd_subdrv_probe(struct drm_device *drm_dev, struct device *dev) */ drm_dev->vblank_disable_allowed = 1; + /* attach this sub driver to iommu mapping if supported. */ + if (is_drm_iommu_supported(drm_dev)) + drm_iommu_attach_device(drm_dev, dev); + return 0; } @@ -716,7 +703,9 @@ static void fimd_subdrv_remove(struct drm_device *drm_dev, struct device *dev) { DRM_DEBUG_KMS("%s\n", __FILE__); - /* TODO. */ + /* detach this sub driver from iommu mapping if supported. */ + if (is_drm_iommu_supported(drm_dev)) + drm_iommu_detach_device(drm_dev, dev); } static int fimd_calc_clkdiv(struct fimd_context *ctx, @@ -857,18 +846,16 @@ static int __devinit fimd_probe(struct platform_device *pdev) if (!ctx) return -ENOMEM; - ctx->bus_clk = clk_get(dev, "fimd"); + ctx->bus_clk = devm_clk_get(dev, "fimd"); if (IS_ERR(ctx->bus_clk)) { dev_err(dev, "failed to get bus clock\n"); - ret = PTR_ERR(ctx->bus_clk); - goto err_clk_get; + return PTR_ERR(ctx->bus_clk); } - ctx->lcd_clk = clk_get(dev, "sclk_fimd"); + ctx->lcd_clk = devm_clk_get(dev, "sclk_fimd"); if (IS_ERR(ctx->lcd_clk)) { dev_err(dev, "failed to get lcd clock\n"); - ret = PTR_ERR(ctx->lcd_clk); - goto err_bus_clk; + return PTR_ERR(ctx->lcd_clk); } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -876,14 +863,13 @@ static int __devinit fimd_probe(struct platform_device *pdev) ctx->regs = devm_request_and_ioremap(&pdev->dev, res); if (!ctx->regs) { dev_err(dev, "failed to map registers\n"); - ret = -ENXIO; - goto err_clk; + return -ENXIO; } res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (!res) { dev_err(dev, "irq request failed.\n"); - goto err_clk; + return -ENXIO; } ctx->irq = res->start; @@ -892,7 +878,7 @@ static int __devinit fimd_probe(struct platform_device *pdev) 0, "drm_fimd", ctx); if (ret) { dev_err(dev, "irq request failed.\n"); - goto err_clk; + return ret; } ctx->vidcon0 = pdata->vidcon0; @@ -926,17 +912,6 @@ static int __devinit fimd_probe(struct platform_device *pdev) exynos_drm_subdrv_register(subdrv); return 0; - -err_clk: - clk_disable(ctx->lcd_clk); - clk_put(ctx->lcd_clk); - -err_bus_clk: - clk_disable(ctx->bus_clk); - clk_put(ctx->bus_clk); - -err_clk_get: - return ret; } static int __devexit fimd_remove(struct platform_device *pdev) @@ -960,9 +935,6 @@ static int __devexit fimd_remove(struct platform_device *pdev) out: pm_runtime_disable(dev); - clk_put(ctx->lcd_clk); - clk_put(ctx->bus_clk); - return 0; } diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c index f7aab24..6ffa076 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c +++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c @@ -17,11 +17,14 @@ #include <linux/pm_runtime.h> #include <linux/slab.h> #include <linux/workqueue.h> +#include <linux/dma-mapping.h> +#include <linux/dma-attrs.h> #include <drm/drmP.h> #include <drm/exynos_drm.h> #include "exynos_drm_drv.h" #include "exynos_drm_gem.h" +#include "exynos_drm_iommu.h" #define G2D_HW_MAJOR_VER 4 #define G2D_HW_MINOR_VER 1 @@ -92,11 +95,21 @@ #define G2D_CMDLIST_POOL_SIZE (G2D_CMDLIST_SIZE * G2D_CMDLIST_NUM) #define G2D_CMDLIST_DATA_NUM (G2D_CMDLIST_SIZE / sizeof(u32) - 2) +#define MAX_BUF_ADDR_NR 6 + +/* maximum buffer pool size of userptr is 64MB as default */ +#define MAX_POOL (64 * 1024 * 1024) + +enum { + BUF_TYPE_GEM = 1, + BUF_TYPE_USERPTR, +}; + /* cmdlist data structure */ struct g2d_cmdlist { - u32 head; - u32 data[G2D_CMDLIST_DATA_NUM]; - u32 last; /* last data offset */ + u32 head; + unsigned long data[G2D_CMDLIST_DATA_NUM]; + u32 last; /* last data offset */ }; struct drm_exynos_pending_g2d_event { @@ -104,15 +117,26 @@ struct drm_exynos_pending_g2d_event { struct drm_exynos_g2d_event event; }; -struct g2d_gem_node { +struct g2d_cmdlist_userptr { struct list_head list; - unsigned int handle; + dma_addr_t dma_addr; + unsigned long userptr; + unsigned long size; + struct page **pages; + unsigned int npages; + struct sg_table *sgt; + struct vm_area_struct *vma; + atomic_t refcount; + bool in_pool; + bool out_of_list; }; struct g2d_cmdlist_node { struct list_head list; struct g2d_cmdlist *cmdlist; - unsigned int gem_nr; + unsigned int map_nr; + unsigned long handles[MAX_BUF_ADDR_NR]; + unsigned int obj_type[MAX_BUF_ADDR_NR]; dma_addr_t dma_addr; struct drm_exynos_pending_g2d_event *event; @@ -122,6 +146,7 @@ struct g2d_runqueue_node { struct list_head list; struct list_head run_cmdlist; struct list_head event_list; + struct drm_file *filp; pid_t pid; struct completion complete; int async; @@ -143,23 +168,33 @@ struct g2d_data { struct mutex cmdlist_mutex; dma_addr_t cmdlist_pool; void *cmdlist_pool_virt; + struct dma_attrs cmdlist_dma_attrs; /* runqueue*/ struct g2d_runqueue_node *runqueue_node; struct list_head runqueue; struct mutex runqueue_mutex; struct kmem_cache *runqueue_slab; + + unsigned long current_pool; + unsigned long max_pool; }; static int g2d_init_cmdlist(struct g2d_data *g2d) { struct device *dev = g2d->dev; struct g2d_cmdlist_node *node = g2d->cmdlist_node; + struct exynos_drm_subdrv *subdrv = &g2d->subdrv; int nr; int ret; - g2d->cmdlist_pool_virt = dma_alloc_coherent(dev, G2D_CMDLIST_POOL_SIZE, - &g2d->cmdlist_pool, GFP_KERNEL); + init_dma_attrs(&g2d->cmdlist_dma_attrs); + dma_set_attr(DMA_ATTR_WRITE_COMBINE, &g2d->cmdlist_dma_attrs); + + g2d->cmdlist_pool_virt = dma_alloc_attrs(subdrv->drm_dev->dev, + G2D_CMDLIST_POOL_SIZE, + &g2d->cmdlist_pool, GFP_KERNEL, + &g2d->cmdlist_dma_attrs); if (!g2d->cmdlist_pool_virt) { dev_err(dev, "failed to allocate dma memory\n"); return -ENOMEM; @@ -184,18 +219,20 @@ static int g2d_init_cmdlist(struct g2d_data *g2d) return 0; err: - dma_free_coherent(dev, G2D_CMDLIST_POOL_SIZE, g2d->cmdlist_pool_virt, - g2d->cmdlist_pool); + dma_free_attrs(subdrv->drm_dev->dev, G2D_CMDLIST_POOL_SIZE, + g2d->cmdlist_pool_virt, + g2d->cmdlist_pool, &g2d->cmdlist_dma_attrs); return ret; } static void g2d_fini_cmdlist(struct g2d_data *g2d) { - struct device *dev = g2d->dev; + struct exynos_drm_subdrv *subdrv = &g2d->subdrv; kfree(g2d->cmdlist_node); - dma_free_coherent(dev, G2D_CMDLIST_POOL_SIZE, g2d->cmdlist_pool_virt, - g2d->cmdlist_pool); + dma_free_attrs(subdrv->drm_dev->dev, G2D_CMDLIST_POOL_SIZE, + g2d->cmdlist_pool_virt, + g2d->cmdlist_pool, &g2d->cmdlist_dma_attrs); } static struct g2d_cmdlist_node *g2d_get_cmdlist(struct g2d_data *g2d) @@ -245,62 +282,300 @@ add_to_list: list_add_tail(&node->event->base.link, &g2d_priv->event_list); } -static int g2d_get_cmdlist_gem(struct drm_device *drm_dev, - struct drm_file *file, - struct g2d_cmdlist_node *node) +static void g2d_userptr_put_dma_addr(struct drm_device *drm_dev, + unsigned long obj, + bool force) { - struct drm_exynos_file_private *file_priv = file->driver_priv; + struct g2d_cmdlist_userptr *g2d_userptr = + (struct g2d_cmdlist_userptr *)obj; + + if (!obj) + return; + + if (force) + goto out; + + atomic_dec(&g2d_userptr->refcount); + + if (atomic_read(&g2d_userptr->refcount) > 0) + return; + + if (g2d_userptr->in_pool) + return; + +out: + exynos_gem_unmap_sgt_from_dma(drm_dev, g2d_userptr->sgt, + DMA_BIDIRECTIONAL); + + exynos_gem_put_pages_to_userptr(g2d_userptr->pages, + g2d_userptr->npages, + g2d_userptr->vma); + + if (!g2d_userptr->out_of_list) + list_del_init(&g2d_userptr->list); + + sg_free_table(g2d_userptr->sgt); + kfree(g2d_userptr->sgt); + g2d_userptr->sgt = NULL; + + kfree(g2d_userptr->pages); + g2d_userptr->pages = NULL; + kfree(g2d_userptr); + g2d_userptr = NULL; +} + +dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev, + unsigned long userptr, + unsigned long size, + struct drm_file *filp, + unsigned long *obj) +{ + struct drm_exynos_file_private *file_priv = filp->driver_priv; + struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv; + struct g2d_cmdlist_userptr *g2d_userptr; + struct g2d_data *g2d; + struct page **pages; + struct sg_table *sgt; + struct vm_area_struct *vma; + unsigned long start, end; + unsigned int npages, offset; + int ret; + + if (!size) { + DRM_ERROR("invalid userptr size.\n"); + return ERR_PTR(-EINVAL); + } + + g2d = dev_get_drvdata(g2d_priv->dev); + + /* check if userptr already exists in userptr_list. */ + list_for_each_entry(g2d_userptr, &g2d_priv->userptr_list, list) { + if (g2d_userptr->userptr == userptr) { + /* + * also check size because there could be same address + * and different size. + */ + if (g2d_userptr->size == size) { + atomic_inc(&g2d_userptr->refcount); + *obj = (unsigned long)g2d_userptr; + + return &g2d_userptr->dma_addr; + } + + /* + * at this moment, maybe g2d dma is accessing this + * g2d_userptr memory region so just remove this + * g2d_userptr object from userptr_list not to be + * referred again and also except it the userptr + * pool to be released after the dma access completion. + */ + g2d_userptr->out_of_list = true; + g2d_userptr->in_pool = false; + list_del_init(&g2d_userptr->list); + + break; + } + } + + g2d_userptr = kzalloc(sizeof(*g2d_userptr), GFP_KERNEL); + if (!g2d_userptr) { + DRM_ERROR("failed to allocate g2d_userptr.\n"); + return ERR_PTR(-ENOMEM); + } + + atomic_set(&g2d_userptr->refcount, 1); + + start = userptr & PAGE_MASK; + offset = userptr & ~PAGE_MASK; + end = PAGE_ALIGN(userptr + size); + npages = (end - start) >> PAGE_SHIFT; + g2d_userptr->npages = npages; + + pages = kzalloc(npages * sizeof(struct page *), GFP_KERNEL); + if (!pages) { + DRM_ERROR("failed to allocate pages.\n"); + kfree(g2d_userptr); + return ERR_PTR(-ENOMEM); + } + + vma = find_vma(current->mm, userptr); + if (!vma) { + DRM_ERROR("failed to get vm region.\n"); + ret = -EFAULT; + goto err_free_pages; + } + + if (vma->vm_end < userptr + size) { + DRM_ERROR("vma is too small.\n"); + ret = -EFAULT; + goto err_free_pages; + } + + g2d_userptr->vma = exynos_gem_get_vma(vma); + if (!g2d_userptr->vma) { + DRM_ERROR("failed to copy vma.\n"); + ret = -ENOMEM; + goto err_free_pages; + } + + g2d_userptr->size = size; + + ret = exynos_gem_get_pages_from_userptr(start & PAGE_MASK, + npages, pages, vma); + if (ret < 0) { + DRM_ERROR("failed to get user pages from userptr.\n"); + goto err_put_vma; + } + + g2d_userptr->pages = pages; + + sgt = kzalloc(sizeof *sgt, GFP_KERNEL); + if (!sgt) { + DRM_ERROR("failed to allocate sg table.\n"); + ret = -ENOMEM; + goto err_free_userptr; + } + + ret = sg_alloc_table_from_pages(sgt, pages, npages, offset, + size, GFP_KERNEL); + if (ret < 0) { + DRM_ERROR("failed to get sgt from pages.\n"); + goto err_free_sgt; + } + + g2d_userptr->sgt = sgt; + + ret = exynos_gem_map_sgt_with_dma(drm_dev, g2d_userptr->sgt, + DMA_BIDIRECTIONAL); + if (ret < 0) { + DRM_ERROR("failed to map sgt with dma region.\n"); + goto err_free_sgt; + } + + g2d_userptr->dma_addr = sgt->sgl[0].dma_address; + g2d_userptr->userptr = userptr; + + list_add_tail(&g2d_userptr->list, &g2d_priv->userptr_list); + + if (g2d->current_pool + (npages << PAGE_SHIFT) < g2d->max_pool) { + g2d->current_pool += npages << PAGE_SHIFT; + g2d_userptr->in_pool = true; + } + + *obj = (unsigned long)g2d_userptr; + + return &g2d_userptr->dma_addr; + +err_free_sgt: + sg_free_table(sgt); + kfree(sgt); + sgt = NULL; + +err_free_userptr: + exynos_gem_put_pages_to_userptr(g2d_userptr->pages, + g2d_userptr->npages, + g2d_userptr->vma); + +err_put_vma: + exynos_gem_put_vma(g2d_userptr->vma); + +err_free_pages: + kfree(pages); + kfree(g2d_userptr); + pages = NULL; + g2d_userptr = NULL; + + return ERR_PTR(ret); +} + +static void g2d_userptr_free_all(struct drm_device *drm_dev, + struct g2d_data *g2d, + struct drm_file *filp) +{ + struct drm_exynos_file_private *file_priv = filp->driver_priv; struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv; + struct g2d_cmdlist_userptr *g2d_userptr, *n; + + list_for_each_entry_safe(g2d_userptr, n, &g2d_priv->userptr_list, list) + if (g2d_userptr->in_pool) + g2d_userptr_put_dma_addr(drm_dev, + (unsigned long)g2d_userptr, + true); + + g2d->current_pool = 0; +} + +static int g2d_map_cmdlist_gem(struct g2d_data *g2d, + struct g2d_cmdlist_node *node, + struct drm_device *drm_dev, + struct drm_file *file) +{ struct g2d_cmdlist *cmdlist = node->cmdlist; - dma_addr_t *addr; int offset; int i; - for (i = 0; i < node->gem_nr; i++) { - struct g2d_gem_node *gem_node; - - gem_node = kzalloc(sizeof(*gem_node), GFP_KERNEL); - if (!gem_node) { - dev_err(g2d_priv->dev, "failed to allocate gem node\n"); - return -ENOMEM; - } + for (i = 0; i < node->map_nr; i++) { + unsigned long handle; + dma_addr_t *addr; offset = cmdlist->last - (i * 2 + 1); - gem_node->handle = cmdlist->data[offset]; - - addr = exynos_drm_gem_get_dma_addr(drm_dev, gem_node->handle, - file); - if (IS_ERR(addr)) { - node->gem_nr = i; - kfree(gem_node); - return PTR_ERR(addr); + handle = cmdlist->data[offset]; + + if (node->obj_type[i] == BUF_TYPE_GEM) { + addr = exynos_drm_gem_get_dma_addr(drm_dev, handle, + file); + if (IS_ERR(addr)) { + node->map_nr = i; + return -EFAULT; + } + } else { + struct drm_exynos_g2d_userptr g2d_userptr; + + if (copy_from_user(&g2d_userptr, (void __user *)handle, + sizeof(struct drm_exynos_g2d_userptr))) { + node->map_nr = i; + return -EFAULT; + } + + addr = g2d_userptr_get_dma_addr(drm_dev, + g2d_userptr.userptr, + g2d_userptr.size, + file, + &handle); + if (IS_ERR(addr)) { + node->map_nr = i; + return -EFAULT; + } } cmdlist->data[offset] = *addr; - list_add_tail(&gem_node->list, &g2d_priv->gem_list); - g2d_priv->gem_nr++; + node->handles[i] = handle; } return 0; } -static void g2d_put_cmdlist_gem(struct drm_device *drm_dev, - struct drm_file *file, - unsigned int nr) +static void g2d_unmap_cmdlist_gem(struct g2d_data *g2d, + struct g2d_cmdlist_node *node, + struct drm_file *filp) { - struct drm_exynos_file_private *file_priv = file->driver_priv; - struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv; - struct g2d_gem_node *node, *n; + struct exynos_drm_subdrv *subdrv = &g2d->subdrv; + int i; - list_for_each_entry_safe_reverse(node, n, &g2d_priv->gem_list, list) { - if (!nr) - break; + for (i = 0; i < node->map_nr; i++) { + unsigned long handle = node->handles[i]; - exynos_drm_gem_put_dma_addr(drm_dev, node->handle, file); - list_del_init(&node->list); - kfree(node); - nr--; + if (node->obj_type[i] == BUF_TYPE_GEM) + exynos_drm_gem_put_dma_addr(subdrv->drm_dev, handle, + filp); + else + g2d_userptr_put_dma_addr(subdrv->drm_dev, handle, + false); + + node->handles[i] = 0; } + + node->map_nr = 0; } static void g2d_dma_start(struct g2d_data *g2d, @@ -337,10 +612,18 @@ static struct g2d_runqueue_node *g2d_get_runqueue_node(struct g2d_data *g2d) static void g2d_free_runqueue_node(struct g2d_data *g2d, struct g2d_runqueue_node *runqueue_node) { + struct g2d_cmdlist_node *node; + if (!runqueue_node) return; mutex_lock(&g2d->cmdlist_mutex); + /* + * commands in run_cmdlist have been completed so unmap all gem + * objects in each command node so that they are unreferenced. + */ + list_for_each_entry(node, &runqueue_node->run_cmdlist, list) + g2d_unmap_cmdlist_gem(g2d, node, runqueue_node->filp); list_splice_tail_init(&runqueue_node->run_cmdlist, &g2d->free_cmdlist); mutex_unlock(&g2d->cmdlist_mutex); @@ -430,15 +713,28 @@ static irqreturn_t g2d_irq_handler(int irq, void *dev_id) return IRQ_HANDLED; } -static int g2d_check_reg_offset(struct device *dev, struct g2d_cmdlist *cmdlist, +static int g2d_check_reg_offset(struct device *dev, + struct g2d_cmdlist_node *node, int nr, bool for_addr) { + struct g2d_cmdlist *cmdlist = node->cmdlist; int reg_offset; int index; int i; for (i = 0; i < nr; i++) { index = cmdlist->last - 2 * (i + 1); + + if (for_addr) { + /* check userptr buffer type. */ + reg_offset = (cmdlist->data[index] & + ~0x7fffffff) >> 31; + if (reg_offset) { + node->obj_type[i] = BUF_TYPE_USERPTR; + cmdlist->data[index] &= ~G2D_BUF_USERPTR; + } + } + reg_offset = cmdlist->data[index] & ~0xfffff000; if (reg_offset < G2D_VALID_START || reg_offset > G2D_VALID_END) @@ -455,6 +751,9 @@ static int g2d_check_reg_offset(struct device *dev, struct g2d_cmdlist *cmdlist, case G2D_MSK_BASE_ADDR: if (!for_addr) goto err; + + if (node->obj_type[i] != BUF_TYPE_USERPTR) + node->obj_type[i] = BUF_TYPE_GEM; break; default: if (for_addr) @@ -466,7 +765,7 @@ static int g2d_check_reg_offset(struct device *dev, struct g2d_cmdlist *cmdlist, return 0; err: - dev_err(dev, "Bad register offset: 0x%x\n", cmdlist->data[index]); + dev_err(dev, "Bad register offset: 0x%lx\n", cmdlist->data[index]); return -EINVAL; } @@ -566,7 +865,7 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data, } /* Check size of cmdlist: last 2 is about G2D_BITBLT_START */ - size = cmdlist->last + req->cmd_nr * 2 + req->cmd_gem_nr * 2 + 2; + size = cmdlist->last + req->cmd_nr * 2 + req->cmd_buf_nr * 2 + 2; if (size > G2D_CMDLIST_DATA_NUM) { dev_err(dev, "cmdlist size is too big\n"); ret = -EINVAL; @@ -583,29 +882,29 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data, } cmdlist->last += req->cmd_nr * 2; - ret = g2d_check_reg_offset(dev, cmdlist, req->cmd_nr, false); + ret = g2d_check_reg_offset(dev, node, req->cmd_nr, false); if (ret < 0) goto err_free_event; - node->gem_nr = req->cmd_gem_nr; - if (req->cmd_gem_nr) { - struct drm_exynos_g2d_cmd *cmd_gem; + node->map_nr = req->cmd_buf_nr; + if (req->cmd_buf_nr) { + struct drm_exynos_g2d_cmd *cmd_buf; - cmd_gem = (struct drm_exynos_g2d_cmd *)(uint32_t)req->cmd_gem; + cmd_buf = (struct drm_exynos_g2d_cmd *)(uint32_t)req->cmd_buf; if (copy_from_user(cmdlist->data + cmdlist->last, - (void __user *)cmd_gem, - sizeof(*cmd_gem) * req->cmd_gem_nr)) { + (void __user *)cmd_buf, + sizeof(*cmd_buf) * req->cmd_buf_nr)) { ret = -EFAULT; goto err_free_event; } - cmdlist->last += req->cmd_gem_nr * 2; + cmdlist->last += req->cmd_buf_nr * 2; - ret = g2d_check_reg_offset(dev, cmdlist, req->cmd_gem_nr, true); + ret = g2d_check_reg_offset(dev, node, req->cmd_buf_nr, true); if (ret < 0) goto err_free_event; - ret = g2d_get_cmdlist_gem(drm_dev, file, node); + ret = g2d_map_cmdlist_gem(g2d, node, drm_dev, file); if (ret < 0) goto err_unmap; } @@ -624,7 +923,7 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data, return 0; err_unmap: - g2d_put_cmdlist_gem(drm_dev, file, node->gem_nr); + g2d_unmap_cmdlist_gem(g2d, node, file); err_free_event: if (node->event) { spin_lock_irqsave(&drm_dev->event_lock, flags); @@ -680,6 +979,7 @@ int exynos_g2d_exec_ioctl(struct drm_device *drm_dev, void *data, mutex_lock(&g2d->runqueue_mutex); runqueue_node->pid = current->pid; + runqueue_node->filp = file; list_add_tail(&runqueue_node->list, &g2d->runqueue); if (!g2d->runqueue_node) g2d_exec_runqueue(g2d); @@ -696,6 +996,43 @@ out: } EXPORT_SYMBOL_GPL(exynos_g2d_exec_ioctl); +static int g2d_subdrv_probe(struct drm_device *drm_dev, struct device *dev) +{ + struct g2d_data *g2d; + int ret; + + g2d = dev_get_drvdata(dev); + if (!g2d) + return -EFAULT; + + /* allocate dma-aware cmdlist buffer. */ + ret = g2d_init_cmdlist(g2d); + if (ret < 0) { + dev_err(dev, "cmdlist init failed\n"); + return ret; + } + + if (!is_drm_iommu_supported(drm_dev)) + return 0; + + ret = drm_iommu_attach_device(drm_dev, dev); + if (ret < 0) { + dev_err(dev, "failed to enable iommu.\n"); + g2d_fini_cmdlist(g2d); + } + + return ret; + +} + +static void g2d_subdrv_remove(struct drm_device *drm_dev, struct device *dev) +{ + if (!is_drm_iommu_supported(drm_dev)) + return; + + drm_iommu_detach_device(drm_dev, dev); +} + static int g2d_open(struct drm_device *drm_dev, struct device *dev, struct drm_file *file) { @@ -713,7 +1050,7 @@ static int g2d_open(struct drm_device *drm_dev, struct device *dev, INIT_LIST_HEAD(&g2d_priv->inuse_cmdlist); INIT_LIST_HEAD(&g2d_priv->event_list); - INIT_LIST_HEAD(&g2d_priv->gem_list); + INIT_LIST_HEAD(&g2d_priv->userptr_list); return 0; } @@ -734,11 +1071,21 @@ static void g2d_close(struct drm_device *drm_dev, struct device *dev, return; mutex_lock(&g2d->cmdlist_mutex); - list_for_each_entry_safe(node, n, &g2d_priv->inuse_cmdlist, list) + list_for_each_entry_safe(node, n, &g2d_priv->inuse_cmdlist, list) { + /* + * unmap all gem objects not completed. + * + * P.S. if current process was terminated forcely then + * there may be some commands in inuse_cmdlist so unmap + * them. + */ + g2d_unmap_cmdlist_gem(g2d, node, file); list_move_tail(&node->list, &g2d->free_cmdlist); + } mutex_unlock(&g2d->cmdlist_mutex); - g2d_put_cmdlist_gem(drm_dev, file, g2d_priv->gem_nr); + /* release all g2d_userptr in pool. */ + g2d_userptr_free_all(drm_dev, g2d, file); kfree(file_priv->g2d_priv); } @@ -778,15 +1125,11 @@ static int __devinit g2d_probe(struct platform_device *pdev) mutex_init(&g2d->cmdlist_mutex); mutex_init(&g2d->runqueue_mutex); - ret = g2d_init_cmdlist(g2d); - if (ret < 0) - goto err_destroy_workqueue; - - g2d->gate_clk = clk_get(dev, "fimg2d"); + g2d->gate_clk = devm_clk_get(dev, "fimg2d"); if (IS_ERR(g2d->gate_clk)) { dev_err(dev, "failed to get gate clock\n"); ret = PTR_ERR(g2d->gate_clk); - goto err_fini_cmdlist; + goto err_destroy_workqueue; } pm_runtime_enable(dev); @@ -814,10 +1157,14 @@ static int __devinit g2d_probe(struct platform_device *pdev) goto err_put_clk; } + g2d->max_pool = MAX_POOL; + platform_set_drvdata(pdev, g2d); subdrv = &g2d->subdrv; subdrv->dev = dev; + subdrv->probe = g2d_subdrv_probe; + subdrv->remove = g2d_subdrv_remove; subdrv->open = g2d_open; subdrv->close = g2d_close; @@ -834,9 +1181,6 @@ static int __devinit g2d_probe(struct platform_device *pdev) err_put_clk: pm_runtime_disable(dev); - clk_put(g2d->gate_clk); -err_fini_cmdlist: - g2d_fini_cmdlist(g2d); err_destroy_workqueue: destroy_workqueue(g2d->g2d_workq); err_destroy_slab: @@ -857,7 +1201,6 @@ static int __devexit g2d_remove(struct platform_device *pdev) } pm_runtime_disable(&pdev->dev); - clk_put(g2d->gate_clk); g2d_fini_cmdlist(g2d); destroy_workqueue(g2d->g2d_workq); diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index d254556..9922724 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -83,157 +83,40 @@ static void update_vm_cache_attr(struct exynos_drm_gem_obj *obj, static unsigned long roundup_gem_size(unsigned long size, unsigned int flags) { - if (!IS_NONCONTIG_BUFFER(flags)) { - if (size >= SZ_1M) - return roundup(size, SECTION_SIZE); - else if (size >= SZ_64K) - return roundup(size, SZ_64K); - else - goto out; - } -out: - return roundup(size, PAGE_SIZE); -} - -struct page **exynos_gem_get_pages(struct drm_gem_object *obj, - gfp_t gfpmask) -{ - struct page *p, **pages; - int i, npages; - - npages = obj->size >> PAGE_SHIFT; - - pages = drm_malloc_ab(npages, sizeof(struct page *)); - if (pages == NULL) - return ERR_PTR(-ENOMEM); - - for (i = 0; i < npages; i++) { - p = alloc_page(gfpmask); - if (IS_ERR(p)) - goto fail; - pages[i] = p; - } - - return pages; - -fail: - while (--i) - __free_page(pages[i]); - - drm_free_large(pages); - return ERR_CAST(p); -} - -static void exynos_gem_put_pages(struct drm_gem_object *obj, - struct page **pages) -{ - int npages; - - npages = obj->size >> PAGE_SHIFT; - - while (--npages >= 0) - __free_page(pages[npages]); + /* TODO */ - drm_free_large(pages); + return roundup(size, PAGE_SIZE); } -static int exynos_drm_gem_map_pages(struct drm_gem_object *obj, +static int exynos_drm_gem_map_buf(struct drm_gem_object *obj, struct vm_area_struct *vma, unsigned long f_vaddr, pgoff_t page_offset) { struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj); struct exynos_drm_gem_buf *buf = exynos_gem_obj->buffer; + struct scatterlist *sgl; unsigned long pfn; + int i; - if (exynos_gem_obj->flags & EXYNOS_BO_NONCONTIG) { - if (!buf->pages) - return -EINTR; - - pfn = page_to_pfn(buf->pages[page_offset++]); - } else - pfn = (buf->dma_addr >> PAGE_SHIFT) + page_offset; - - return vm_insert_mixed(vma, f_vaddr, pfn); -} + if (!buf->sgt) + return -EINTR; -static int exynos_drm_gem_get_pages(struct drm_gem_object *obj) -{ - struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj); - struct exynos_drm_gem_buf *buf = exynos_gem_obj->buffer; - struct scatterlist *sgl; - struct page **pages; - unsigned int npages, i = 0; - int ret; - - if (buf->pages) { - DRM_DEBUG_KMS("already allocated.\n"); + if (page_offset >= (buf->size >> PAGE_SHIFT)) { + DRM_ERROR("invalid page offset\n"); return -EINVAL; } - pages = exynos_gem_get_pages(obj, GFP_HIGHUSER_MOVABLE); - if (IS_ERR(pages)) { - DRM_ERROR("failed to get pages.\n"); - return PTR_ERR(pages); - } - - npages = obj->size >> PAGE_SHIFT; - buf->page_size = PAGE_SIZE; - - buf->sgt = kzalloc(sizeof(struct sg_table), GFP_KERNEL); - if (!buf->sgt) { - DRM_ERROR("failed to allocate sg table.\n"); - ret = -ENOMEM; - goto err; - } - - ret = sg_alloc_table(buf->sgt, npages, GFP_KERNEL); - if (ret < 0) { - DRM_ERROR("failed to initialize sg table.\n"); - ret = -EFAULT; - goto err1; - } - sgl = buf->sgt->sgl; - - /* set all pages to sg list. */ - while (i < npages) { - sg_set_page(sgl, pages[i], PAGE_SIZE, 0); - sg_dma_address(sgl) = page_to_phys(pages[i]); - i++; - sgl = sg_next(sgl); + for_each_sg(buf->sgt->sgl, sgl, buf->sgt->nents, i) { + if (page_offset < (sgl->length >> PAGE_SHIFT)) + break; + page_offset -= (sgl->length >> PAGE_SHIFT); } - /* add some codes for UNCACHED type here. TODO */ - - buf->pages = pages; - return ret; -err1: - kfree(buf->sgt); - buf->sgt = NULL; -err: - exynos_gem_put_pages(obj, pages); - return ret; - -} - -static void exynos_drm_gem_put_pages(struct drm_gem_object *obj) -{ - struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj); - struct exynos_drm_gem_buf *buf = exynos_gem_obj->buffer; - - /* - * if buffer typs is EXYNOS_BO_NONCONTIG then release all pages - * allocated at gem fault handler. - */ - sg_free_table(buf->sgt); - kfree(buf->sgt); - buf->sgt = NULL; - - exynos_gem_put_pages(obj, buf->pages); - buf->pages = NULL; + pfn = __phys_to_pfn(sg_phys(sgl)) + page_offset; - /* add some codes for UNCACHED type here. TODO */ + return vm_insert_mixed(vma, f_vaddr, pfn); } static int exynos_drm_gem_handle_create(struct drm_gem_object *obj, @@ -270,9 +153,6 @@ void exynos_drm_gem_destroy(struct exynos_drm_gem_obj *exynos_gem_obj) DRM_DEBUG_KMS("handle count = %d\n", atomic_read(&obj->handle_count)); - if (!buf->pages) - return; - /* * do not release memory region from exporter. * @@ -282,10 +162,7 @@ void exynos_drm_gem_destroy(struct exynos_drm_gem_obj *exynos_gem_obj) if (obj->import_attach) goto out; - if (exynos_gem_obj->flags & EXYNOS_BO_NONCONTIG) - exynos_drm_gem_put_pages(obj); - else - exynos_drm_free_buf(obj->dev, exynos_gem_obj->flags, buf); + exynos_drm_free_buf(obj->dev, exynos_gem_obj->flags, buf); out: exynos_drm_fini_buf(obj->dev, buf); @@ -364,22 +241,10 @@ struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev, /* set memory type and cache attribute from user side. */ exynos_gem_obj->flags = flags; - /* - * allocate all pages as desired size if user wants to allocate - * physically non-continuous memory. - */ - if (flags & EXYNOS_BO_NONCONTIG) { - ret = exynos_drm_gem_get_pages(&exynos_gem_obj->base); - if (ret < 0) { - drm_gem_object_release(&exynos_gem_obj->base); - goto err_fini_buf; - } - } else { - ret = exynos_drm_alloc_buf(dev, buf, flags); - if (ret < 0) { - drm_gem_object_release(&exynos_gem_obj->base); - goto err_fini_buf; - } + ret = exynos_drm_alloc_buf(dev, buf, flags); + if (ret < 0) { + drm_gem_object_release(&exynos_gem_obj->base); + goto err_fini_buf; } return exynos_gem_obj; @@ -412,14 +277,14 @@ int exynos_drm_gem_create_ioctl(struct drm_device *dev, void *data, return 0; } -void *exynos_drm_gem_get_dma_addr(struct drm_device *dev, +dma_addr_t *exynos_drm_gem_get_dma_addr(struct drm_device *dev, unsigned int gem_handle, - struct drm_file *file_priv) + struct drm_file *filp) { struct exynos_drm_gem_obj *exynos_gem_obj; struct drm_gem_object *obj; - obj = drm_gem_object_lookup(dev, file_priv, gem_handle); + obj = drm_gem_object_lookup(dev, filp, gem_handle); if (!obj) { DRM_ERROR("failed to lookup gem object.\n"); return ERR_PTR(-EINVAL); @@ -427,25 +292,17 @@ void *exynos_drm_gem_get_dma_addr(struct drm_device *dev, exynos_gem_obj = to_exynos_gem_obj(obj); - if (exynos_gem_obj->flags & EXYNOS_BO_NONCONTIG) { - DRM_DEBUG_KMS("not support NONCONTIG type.\n"); - drm_gem_object_unreference_unlocked(obj); - - /* TODO */ - return ERR_PTR(-EINVAL); - } - return &exynos_gem_obj->buffer->dma_addr; } void exynos_drm_gem_put_dma_addr(struct drm_device *dev, unsigned int gem_handle, - struct drm_file *file_priv) + struct drm_file *filp) { struct exynos_drm_gem_obj *exynos_gem_obj; struct drm_gem_object *obj; - obj = drm_gem_object_lookup(dev, file_priv, gem_handle); + obj = drm_gem_object_lookup(dev, filp, gem_handle); if (!obj) { DRM_ERROR("failed to lookup gem object.\n"); return; @@ -453,14 +310,6 @@ void exynos_drm_gem_put_dma_addr(struct drm_device *dev, exynos_gem_obj = to_exynos_gem_obj(obj); - if (exynos_gem_obj->flags & EXYNOS_BO_NONCONTIG) { - DRM_DEBUG_KMS("not support NONCONTIG type.\n"); - drm_gem_object_unreference_unlocked(obj); - - /* TODO */ - return; - } - drm_gem_object_unreference_unlocked(obj); /* @@ -489,22 +338,57 @@ int exynos_drm_gem_map_offset_ioctl(struct drm_device *dev, void *data, &args->offset); } +static struct drm_file *exynos_drm_find_drm_file(struct drm_device *drm_dev, + struct file *filp) +{ + struct drm_file *file_priv; + + mutex_lock(&drm_dev->struct_mutex); + + /* find current process's drm_file from filelist. */ + list_for_each_entry(file_priv, &drm_dev->filelist, lhead) { + if (file_priv->filp == filp) { + mutex_unlock(&drm_dev->struct_mutex); + return file_priv; + } + } + + mutex_unlock(&drm_dev->struct_mutex); + WARN_ON(1); + + return ERR_PTR(-EFAULT); +} + static int exynos_drm_gem_mmap_buffer(struct file *filp, struct vm_area_struct *vma) { struct drm_gem_object *obj = filp->private_data; struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj); + struct drm_device *drm_dev = obj->dev; struct exynos_drm_gem_buf *buffer; - unsigned long pfn, vm_size, usize, uaddr = vma->vm_start; + struct drm_file *file_priv; + unsigned long vm_size; int ret; DRM_DEBUG_KMS("%s\n", __FILE__); vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; + vma->vm_private_data = obj; + vma->vm_ops = drm_dev->driver->gem_vm_ops; + + /* restore it to driver's fops. */ + filp->f_op = fops_get(drm_dev->driver->fops); + + file_priv = exynos_drm_find_drm_file(drm_dev, filp); + if (IS_ERR(file_priv)) + return PTR_ERR(file_priv); + + /* restore it to drm_file. */ + filp->private_data = file_priv; update_vm_cache_attr(exynos_gem_obj, vma); - vm_size = usize = vma->vm_end - vma->vm_start; + vm_size = vma->vm_end - vma->vm_start; /* * a buffer contains information to physically continuous memory @@ -516,40 +400,23 @@ static int exynos_drm_gem_mmap_buffer(struct file *filp, if (vm_size > buffer->size) return -EINVAL; - if (exynos_gem_obj->flags & EXYNOS_BO_NONCONTIG) { - int i = 0; - - if (!buffer->pages) - return -EINVAL; + ret = dma_mmap_attrs(drm_dev->dev, vma, buffer->kvaddr, + buffer->dma_addr, buffer->size, + &buffer->dma_attrs); + if (ret < 0) { + DRM_ERROR("failed to mmap.\n"); + return ret; + } - vma->vm_flags |= VM_MIXEDMAP; + /* + * take a reference to this mapping of the object. And this reference + * is unreferenced by the corresponding vm_close call. + */ + drm_gem_object_reference(obj); - do { - ret = vm_insert_page(vma, uaddr, buffer->pages[i++]); - if (ret) { - DRM_ERROR("failed to remap user space.\n"); - return ret; - } - - uaddr += PAGE_SIZE; - usize -= PAGE_SIZE; - } while (usize > 0); - } else { - /* - * get page frame number to physical memory to be mapped - * to user space. - */ - pfn = ((unsigned long)exynos_gem_obj->buffer->dma_addr) >> - PAGE_SHIFT; - - DRM_DEBUG_KMS("pfn = 0x%lx\n", pfn); - - if (remap_pfn_range(vma, vma->vm_start, pfn, vm_size, - vma->vm_page_prot)) { - DRM_ERROR("failed to remap pfn range.\n"); - return -EAGAIN; - } - } + mutex_lock(&drm_dev->struct_mutex); + drm_vm_open_locked(drm_dev, vma); + mutex_unlock(&drm_dev->struct_mutex); return 0; } @@ -578,16 +445,29 @@ int exynos_drm_gem_mmap_ioctl(struct drm_device *dev, void *data, return -EINVAL; } - obj->filp->f_op = &exynos_drm_gem_fops; - obj->filp->private_data = obj; + /* + * Set specific mmper's fops. And it will be restored by + * exynos_drm_gem_mmap_buffer to dev->driver->fops. + * This is used to call specific mapper temporarily. + */ + file_priv->filp->f_op = &exynos_drm_gem_fops; - addr = vm_mmap(obj->filp, 0, args->size, + /* + * Set gem object to private_data so that specific mmaper + * can get the gem object. And it will be restored by + * exynos_drm_gem_mmap_buffer to drm_file. + */ + file_priv->filp->private_data = obj; + + addr = vm_mmap(file_priv->filp, 0, args->size, PROT_READ | PROT_WRITE, MAP_SHARED, 0); drm_gem_object_unreference_unlocked(obj); - if (IS_ERR((void *)addr)) + if (IS_ERR((void *)addr)) { + file_priv->filp->private_data = file_priv; return PTR_ERR((void *)addr); + } args->mapped = addr; @@ -622,6 +502,129 @@ int exynos_drm_gem_get_ioctl(struct drm_device *dev, void *data, return 0; } +struct vm_area_struct *exynos_gem_get_vma(struct vm_area_struct *vma) +{ + struct vm_area_struct *vma_copy; + + vma_copy = kmalloc(sizeof(*vma_copy), GFP_KERNEL); + if (!vma_copy) + return NULL; + + if (vma->vm_ops && vma->vm_ops->open) + vma->vm_ops->open(vma); + + if (vma->vm_file) + get_file(vma->vm_file); + + memcpy(vma_copy, vma, sizeof(*vma)); + + vma_copy->vm_mm = NULL; + vma_copy->vm_next = NULL; + vma_copy->vm_prev = NULL; + + return vma_copy; +} + +void exynos_gem_put_vma(struct vm_area_struct *vma) +{ + if (!vma) + return; + + if (vma->vm_ops && vma->vm_ops->close) + vma->vm_ops->close(vma); + + if (vma->vm_file) + fput(vma->vm_file); + + kfree(vma); +} + +int exynos_gem_get_pages_from_userptr(unsigned long start, + unsigned int npages, + struct page **pages, + struct vm_area_struct *vma) +{ + int get_npages; + + /* the memory region mmaped with VM_PFNMAP. */ + if (vma_is_io(vma)) { + unsigned int i; + + for (i = 0; i < npages; ++i, start += PAGE_SIZE) { + unsigned long pfn; + int ret = follow_pfn(vma, start, &pfn); + if (ret) + return ret; + + pages[i] = pfn_to_page(pfn); + } + + if (i != npages) { + DRM_ERROR("failed to get user_pages.\n"); + return -EINVAL; + } + + return 0; + } + + get_npages = get_user_pages(current, current->mm, start, + npages, 1, 1, pages, NULL); + get_npages = max(get_npages, 0); + if (get_npages != npages) { + DRM_ERROR("failed to get user_pages.\n"); + while (get_npages) + put_page(pages[--get_npages]); + return -EFAULT; + } + + return 0; +} + +void exynos_gem_put_pages_to_userptr(struct page **pages, + unsigned int npages, + struct vm_area_struct *vma) +{ + if (!vma_is_io(vma)) { + unsigned int i; + + for (i = 0; i < npages; i++) { + set_page_dirty_lock(pages[i]); + + /* + * undo the reference we took when populating + * the table. + */ + put_page(pages[i]); + } + } +} + +int exynos_gem_map_sgt_with_dma(struct drm_device *drm_dev, + struct sg_table *sgt, + enum dma_data_direction dir) +{ + int nents; + + mutex_lock(&drm_dev->struct_mutex); + + nents = dma_map_sg(drm_dev->dev, sgt->sgl, sgt->nents, dir); + if (!nents) { + DRM_ERROR("failed to map sgl with dma.\n"); + mutex_unlock(&drm_dev->struct_mutex); + return nents; + } + + mutex_unlock(&drm_dev->struct_mutex); + return 0; +} + +void exynos_gem_unmap_sgt_from_dma(struct drm_device *drm_dev, + struct sg_table *sgt, + enum dma_data_direction dir) +{ + dma_unmap_sg(drm_dev->dev, sgt->sgl, sgt->nents, dir); +} + int exynos_drm_gem_init_object(struct drm_gem_object *obj) { DRM_DEBUG_KMS("%s\n", __FILE__); @@ -753,9 +756,9 @@ int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf) mutex_lock(&dev->struct_mutex); - ret = exynos_drm_gem_map_pages(obj, vma, f_vaddr, page_offset); + ret = exynos_drm_gem_map_buf(obj, vma, f_vaddr, page_offset); if (ret < 0) - DRM_ERROR("failed to map pages.\n"); + DRM_ERROR("failed to map a buffer with user.\n"); mutex_unlock(&dev->struct_mutex); diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h index 085b2a5..d3ea106 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.h +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h @@ -35,21 +35,25 @@ * exynos drm gem buffer structure. * * @kvaddr: kernel virtual address to allocated memory region. + * *userptr: user space address. * @dma_addr: bus address(accessed by dma) to allocated memory region. * - this address could be physical address without IOMMU and * device address with IOMMU. + * @write: whether pages will be written to by the caller. * @sgt: sg table to transfer page data. - * @pages: contain all pages to allocated memory region. - * @page_size: could be 4K, 64K or 1MB. * @size: size of allocated memory region. + * @pfnmap: indicate whether memory region from userptr is mmaped with + * VM_PFNMAP or not. */ struct exynos_drm_gem_buf { void __iomem *kvaddr; + unsigned long userptr; dma_addr_t dma_addr; + struct dma_attrs dma_attrs; + unsigned int write; struct sg_table *sgt; - struct page **pages; - unsigned long page_size; unsigned long size; + bool pfnmap; }; /* @@ -65,6 +69,7 @@ struct exynos_drm_gem_buf { * or at framebuffer creation. * @size: size requested from user, in bytes and this size is aligned * in page unit. + * @vma: a pointer to vm_area. * @flags: indicate memory type to allocated buffer and cache attruibute. * * P.S. this object would be transfered to user as kms_bo.handle so @@ -74,6 +79,7 @@ struct exynos_drm_gem_obj { struct drm_gem_object base; struct exynos_drm_gem_buf *buffer; unsigned long size; + struct vm_area_struct *vma; unsigned int flags; }; @@ -104,9 +110,9 @@ int exynos_drm_gem_create_ioctl(struct drm_device *dev, void *data, * other drivers such as 2d/3d acceleration drivers. * with this function call, gem object reference count would be increased. */ -void *exynos_drm_gem_get_dma_addr(struct drm_device *dev, +dma_addr_t *exynos_drm_gem_get_dma_addr(struct drm_device *dev, unsigned int gem_handle, - struct drm_file *file_priv); + struct drm_file *filp); /* * put dma address from gem handle and this function could be used for @@ -115,7 +121,7 @@ void *exynos_drm_gem_get_dma_addr(struct drm_device *dev, */ void exynos_drm_gem_put_dma_addr(struct drm_device *dev, unsigned int gem_handle, - struct drm_file *file_priv); + struct drm_file *filp); /* get buffer offset to map to user space. */ int exynos_drm_gem_map_offset_ioctl(struct drm_device *dev, void *data, @@ -128,6 +134,10 @@ int exynos_drm_gem_map_offset_ioctl(struct drm_device *dev, void *data, int exynos_drm_gem_mmap_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); +/* map user space allocated by malloc to pages. */ +int exynos_drm_gem_userptr_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); + /* get buffer information to memory region allocated by gem. */ int exynos_drm_gem_get_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); @@ -163,4 +173,36 @@ int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf); /* set vm_flags and we can change the vm attribute to other one at here. */ int exynos_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); +static inline int vma_is_io(struct vm_area_struct *vma) +{ + return !!(vma->vm_flags & (VM_IO | VM_PFNMAP)); +} + +/* get a copy of a virtual memory region. */ +struct vm_area_struct *exynos_gem_get_vma(struct vm_area_struct *vma); + +/* release a userspace virtual memory area. */ +void exynos_gem_put_vma(struct vm_area_struct *vma); + +/* get pages from user space. */ +int exynos_gem_get_pages_from_userptr(unsigned long start, + unsigned int npages, + struct page **pages, + struct vm_area_struct *vma); + +/* drop the reference to pages. */ +void exynos_gem_put_pages_to_userptr(struct page **pages, + unsigned int npages, + struct vm_area_struct *vma); + +/* map sgt with dma region. */ +int exynos_gem_map_sgt_with_dma(struct drm_device *drm_dev, + struct sg_table *sgt, + enum dma_data_direction dir); + +/* unmap sgt from dma region. */ +void exynos_gem_unmap_sgt_from_dma(struct drm_device *drm_dev, + struct sg_table *sgt, + enum dma_data_direction dir); + #endif diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c index c3b9e2b..2d11e70 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c @@ -346,9 +346,23 @@ static int hdmi_subdrv_probe(struct drm_device *drm_dev, ctx->hdmi_ctx->drm_dev = drm_dev; ctx->mixer_ctx->drm_dev = drm_dev; + if (mixer_ops->iommu_on) + mixer_ops->iommu_on(ctx->mixer_ctx->ctx, true); + return 0; } +static void hdmi_subdrv_remove(struct drm_device *drm_dev, struct device *dev) +{ + struct drm_hdmi_context *ctx; + struct exynos_drm_subdrv *subdrv = to_subdrv(dev); + + ctx = get_ctx_from_subdrv(subdrv); + + if (mixer_ops->iommu_on) + mixer_ops->iommu_on(ctx->mixer_ctx->ctx, false); +} + static int __devinit exynos_drm_hdmi_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -368,6 +382,7 @@ static int __devinit exynos_drm_hdmi_probe(struct platform_device *pdev) subdrv->dev = dev; subdrv->manager = &hdmi_manager; subdrv->probe = hdmi_subdrv_probe; + subdrv->remove = hdmi_subdrv_remove; platform_set_drvdata(pdev, subdrv); diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.h b/drivers/gpu/drm/exynos/exynos_drm_hdmi.h index 2da5ffd..54b5223 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.h +++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.h @@ -62,6 +62,7 @@ struct exynos_hdmi_ops { struct exynos_mixer_ops { /* manager */ + int (*iommu_on)(void *ctx, bool enable); int (*enable_vblank)(void *ctx, int pipe); void (*disable_vblank)(void *ctx); void (*dpms)(void *ctx, int mode); diff --git a/drivers/gpu/drm/exynos/exynos_drm_iommu.c b/drivers/gpu/drm/exynos/exynos_drm_iommu.c new file mode 100644 index 0000000..09db198 --- /dev/null +++ b/drivers/gpu/drm/exynos/exynos_drm_iommu.c @@ -0,0 +1,150 @@ +/* exynos_drm_iommu.c + * + * Copyright (c) 2012 Samsung Electronics Co., Ltd. + * Author: Inki Dae <inki.dae@samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include <drmP.h> +#include <drm/exynos_drm.h> + +#include <linux/dma-mapping.h> +#include <linux/iommu.h> +#include <linux/kref.h> + +#include <asm/dma-iommu.h> + +#include "exynos_drm_drv.h" +#include "exynos_drm_iommu.h" + +/* + * drm_create_iommu_mapping - create a mapping structure + * + * @drm_dev: DRM device + */ +int drm_create_iommu_mapping(struct drm_device *drm_dev) +{ + struct dma_iommu_mapping *mapping = NULL; + struct exynos_drm_private *priv = drm_dev->dev_private; + struct device *dev = drm_dev->dev; + + if (!priv->da_start) + priv->da_start = EXYNOS_DEV_ADDR_START; + if (!priv->da_space_size) + priv->da_space_size = EXYNOS_DEV_ADDR_SIZE; + if (!priv->da_space_order) + priv->da_space_order = EXYNOS_DEV_ADDR_ORDER; + + mapping = arm_iommu_create_mapping(&platform_bus_type, priv->da_start, + priv->da_space_size, + priv->da_space_order); + if (!mapping) + return -ENOMEM; + + dev->dma_parms = devm_kzalloc(dev, sizeof(*dev->dma_parms), + GFP_KERNEL); + dma_set_max_seg_size(dev, 0xffffffffu); + dev->archdata.mapping = mapping; + + return 0; +} + +/* + * drm_release_iommu_mapping - release iommu mapping structure + * + * @drm_dev: DRM device + * + * if mapping->kref becomes 0 then all things related to iommu mapping + * will be released + */ +void drm_release_iommu_mapping(struct drm_device *drm_dev) +{ + struct device *dev = drm_dev->dev; + + arm_iommu_release_mapping(dev->archdata.mapping); +} + +/* + * drm_iommu_attach_device- attach device to iommu mapping + * + * @drm_dev: DRM device + * @subdrv_dev: device to be attach + * + * This function should be called by sub drivers to attach it to iommu + * mapping. + */ +int drm_iommu_attach_device(struct drm_device *drm_dev, + struct device *subdrv_dev) +{ + struct device *dev = drm_dev->dev; + int ret; + + if (!dev->archdata.mapping) { + DRM_ERROR("iommu_mapping is null.\n"); + return -EFAULT; + } + + subdrv_dev->dma_parms = devm_kzalloc(subdrv_dev, + sizeof(*subdrv_dev->dma_parms), + GFP_KERNEL); + dma_set_max_seg_size(subdrv_dev, 0xffffffffu); + + ret = arm_iommu_attach_device(subdrv_dev, dev->archdata.mapping); + if (ret < 0) { + DRM_DEBUG_KMS("failed iommu attach.\n"); + return ret; + } + + /* + * Set dma_ops to drm_device just one time. + * + * The dma mapping api needs device object and the api is used + * to allocate physial memory and map it with iommu table. + * If iommu attach succeeded, the sub driver would have dma_ops + * for iommu and also all sub drivers have same dma_ops. + */ + if (!dev->archdata.dma_ops) + dev->archdata.dma_ops = subdrv_dev->archdata.dma_ops; + + return 0; +} + +/* + * drm_iommu_detach_device -detach device address space mapping from device + * + * @drm_dev: DRM device + * @subdrv_dev: device to be detached + * + * This function should be called by sub drivers to detach it from iommu + * mapping + */ +void drm_iommu_detach_device(struct drm_device *drm_dev, + struct device *subdrv_dev) +{ + struct device *dev = drm_dev->dev; + struct dma_iommu_mapping *mapping = dev->archdata.mapping; + + if (!mapping || !mapping->domain) + return; + + iommu_detach_device(mapping->domain, subdrv_dev); + drm_release_iommu_mapping(drm_dev); +} diff --git a/drivers/gpu/drm/exynos/exynos_drm_iommu.h b/drivers/gpu/drm/exynos/exynos_drm_iommu.h new file mode 100644 index 0000000..18a0ca1 --- /dev/null +++ b/drivers/gpu/drm/exynos/exynos_drm_iommu.h @@ -0,0 +1,85 @@ +/* exynos_drm_iommu.h + * + * Copyright (c) 2012 Samsung Electronics Co., Ltd. + * Authoer: Inki Dae <inki.dae@samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef _EXYNOS_DRM_IOMMU_H_ +#define _EXYNOS_DRM_IOMMU_H_ + +#define EXYNOS_DEV_ADDR_START 0x20000000 +#define EXYNOS_DEV_ADDR_SIZE 0x40000000 +#define EXYNOS_DEV_ADDR_ORDER 0x4 + +#ifdef CONFIG_DRM_EXYNOS_IOMMU + +int drm_create_iommu_mapping(struct drm_device *drm_dev); + +void drm_release_iommu_mapping(struct drm_device *drm_dev); + +int drm_iommu_attach_device(struct drm_device *drm_dev, + struct device *subdrv_dev); + +void drm_iommu_detach_device(struct drm_device *dev_dev, + struct device *subdrv_dev); + +static inline bool is_drm_iommu_supported(struct drm_device *drm_dev) +{ +#ifdef CONFIG_ARM_DMA_USE_IOMMU + struct device *dev = drm_dev->dev; + + return dev->archdata.mapping ? true : false; +#else + return false; +#endif +} + +#else + +struct dma_iommu_mapping; +static inline int drm_create_iommu_mapping(struct drm_device *drm_dev) +{ + return 0; +} + +static inline void drm_release_iommu_mapping(struct drm_device *drm_dev) +{ +} + +static inline int drm_iommu_attach_device(struct drm_device *drm_dev, + struct device *subdrv_dev) +{ + return 0; +} + +static inline void drm_iommu_detach_device(struct drm_device *drm_dev, + struct device *subdrv_dev) +{ +} + +static inline bool is_drm_iommu_supported(struct drm_device *drm_dev) +{ + return false; +} + +#endif +#endif diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c index 60b877a..862ca1e 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_plane.c +++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c @@ -204,7 +204,6 @@ exynos_update_plane(struct drm_plane *plane, struct drm_crtc *crtc, return ret; plane->crtc = crtc; - plane->fb = crtc->fb; exynos_plane_commit(plane); exynos_plane_dpms(plane, DRM_MODE_DPMS_ON); diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c index e4b8a8f..4b0c16b 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c @@ -382,7 +382,6 @@ static void vidi_finish_pageflip(struct drm_device *drm_dev, int crtc) struct drm_pending_vblank_event *e, *t; struct timeval now; unsigned long flags; - bool is_checked = false; spin_lock_irqsave(&drm_dev->event_lock, flags); @@ -392,8 +391,6 @@ static void vidi_finish_pageflip(struct drm_device *drm_dev, int crtc) if (crtc != e->pipe) continue; - is_checked = true; - do_gettimeofday(&now); e->event.sequence = 0; e->event.tv_sec = now.tv_sec; @@ -401,22 +398,7 @@ static void vidi_finish_pageflip(struct drm_device *drm_dev, int crtc) list_move_tail(&e->base.link, &e->base.file_priv->event_list); wake_up_interruptible(&e->base.file_priv->event_wait); - } - - if (is_checked) { - /* - * call drm_vblank_put only in case that drm_vblank_get was - * called. - */ - if (atomic_read(&drm_dev->vblank_refcount[crtc]) > 0) - drm_vblank_put(drm_dev, crtc); - - /* - * don't off vblank if vblank_disable_allowed is 1, - * because vblank would be off by timer handler. - */ - if (!drm_dev->vblank_disable_allowed) - drm_vblank_off(drm_dev, crtc); + drm_vblank_put(drm_dev, crtc); } spin_unlock_irqrestore(&drm_dev->event_lock, flags); diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index 2c115f8..bafb653 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -50,6 +50,29 @@ #define MAX_HEIGHT 1080 #define get_hdmi_context(dev) platform_get_drvdata(to_platform_device(dev)) +/* AVI header and aspect ratio */ +#define HDMI_AVI_VERSION 0x02 +#define HDMI_AVI_LENGTH 0x0D +#define AVI_PIC_ASPECT_RATIO_16_9 (2 << 4) +#define AVI_SAME_AS_PIC_ASPECT_RATIO 8 + +/* AUI header info */ +#define HDMI_AUI_VERSION 0x01 +#define HDMI_AUI_LENGTH 0x0A + +/* HDMI infoframe to configure HDMI out packet header, AUI and AVI */ +enum HDMI_PACKET_TYPE { + /* refer to Table 5-8 Packet Type in HDMI specification v1.4a */ + /* InfoFrame packet type */ + HDMI_PACKET_TYPE_INFOFRAME = 0x80, + /* Vendor-Specific InfoFrame */ + HDMI_PACKET_TYPE_VSI = HDMI_PACKET_TYPE_INFOFRAME + 1, + /* Auxiliary Video information InfoFrame */ + HDMI_PACKET_TYPE_AVI = HDMI_PACKET_TYPE_INFOFRAME + 2, + /* Audio information InfoFrame */ + HDMI_PACKET_TYPE_AUI = HDMI_PACKET_TYPE_INFOFRAME + 4 +}; + enum hdmi_type { HDMI_TYPE13, HDMI_TYPE14, @@ -74,6 +97,7 @@ struct hdmi_context { struct mutex hdmi_mutex; void __iomem *regs; + void *parent_ctx; int external_irq; int internal_irq; @@ -84,7 +108,6 @@ struct hdmi_context { int cur_conf; struct hdmi_resources res; - void *parent_ctx; int hpd_gpio; @@ -182,6 +205,7 @@ struct hdmi_v13_conf { int height; int vrefresh; bool interlace; + int cea_video_id; const u8 *hdmiphy_data; const struct hdmi_v13_preset_conf *conf; }; @@ -353,15 +377,20 @@ static const struct hdmi_v13_preset_conf hdmi_v13_conf_1080p60 = { }; static const struct hdmi_v13_conf hdmi_v13_confs[] = { - { 1280, 720, 60, false, hdmiphy_v13_conf74_25, &hdmi_v13_conf_720p60 }, - { 1280, 720, 50, false, hdmiphy_v13_conf74_25, &hdmi_v13_conf_720p60 }, - { 720, 480, 60, false, hdmiphy_v13_conf27_027, &hdmi_v13_conf_480p }, - { 1920, 1080, 50, true, hdmiphy_v13_conf74_25, &hdmi_v13_conf_1080i50 }, - { 1920, 1080, 50, false, hdmiphy_v13_conf148_5, - &hdmi_v13_conf_1080p50 }, - { 1920, 1080, 60, true, hdmiphy_v13_conf74_25, &hdmi_v13_conf_1080i60 }, - { 1920, 1080, 60, false, hdmiphy_v13_conf148_5, - &hdmi_v13_conf_1080p60 }, + { 1280, 720, 60, false, 4, hdmiphy_v13_conf74_25, + &hdmi_v13_conf_720p60 }, + { 1280, 720, 50, false, 19, hdmiphy_v13_conf74_25, + &hdmi_v13_conf_720p60 }, + { 720, 480, 60, false, 3, hdmiphy_v13_conf27_027, + &hdmi_v13_conf_480p }, + { 1920, 1080, 50, true, 20, hdmiphy_v13_conf74_25, + &hdmi_v13_conf_1080i50 }, + { 1920, 1080, 50, false, 31, hdmiphy_v13_conf148_5, + &hdmi_v13_conf_1080p50 }, + { 1920, 1080, 60, true, 5, hdmiphy_v13_conf74_25, + &hdmi_v13_conf_1080i60 }, + { 1920, 1080, 60, false, 16, hdmiphy_v13_conf148_5, + &hdmi_v13_conf_1080p60 }, }; /* HDMI Version 1.4 */ @@ -479,6 +508,7 @@ struct hdmi_conf { int height; int vrefresh; bool interlace; + int cea_video_id; const u8 *hdmiphy_data; const struct hdmi_preset_conf *conf; }; @@ -934,16 +964,21 @@ static const struct hdmi_preset_conf hdmi_conf_1080p60 = { }; static const struct hdmi_conf hdmi_confs[] = { - { 720, 480, 60, false, hdmiphy_conf27_027, &hdmi_conf_480p60 }, - { 1280, 720, 50, false, hdmiphy_conf74_25, &hdmi_conf_720p50 }, - { 1280, 720, 60, false, hdmiphy_conf74_25, &hdmi_conf_720p60 }, - { 1920, 1080, 50, true, hdmiphy_conf74_25, &hdmi_conf_1080i50 }, - { 1920, 1080, 60, true, hdmiphy_conf74_25, &hdmi_conf_1080i60 }, - { 1920, 1080, 30, false, hdmiphy_conf74_176, &hdmi_conf_1080p30 }, - { 1920, 1080, 50, false, hdmiphy_conf148_5, &hdmi_conf_1080p50 }, - { 1920, 1080, 60, false, hdmiphy_conf148_5, &hdmi_conf_1080p60 }, + { 720, 480, 60, false, 3, hdmiphy_conf27_027, &hdmi_conf_480p60 }, + { 1280, 720, 50, false, 19, hdmiphy_conf74_25, &hdmi_conf_720p50 }, + { 1280, 720, 60, false, 4, hdmiphy_conf74_25, &hdmi_conf_720p60 }, + { 1920, 1080, 50, true, 20, hdmiphy_conf74_25, &hdmi_conf_1080i50 }, + { 1920, 1080, 60, true, 5, hdmiphy_conf74_25, &hdmi_conf_1080i60 }, + { 1920, 1080, 30, false, 34, hdmiphy_conf74_176, &hdmi_conf_1080p30 }, + { 1920, 1080, 50, false, 31, hdmiphy_conf148_5, &hdmi_conf_1080p50 }, + { 1920, 1080, 60, false, 16, hdmiphy_conf148_5, &hdmi_conf_1080p60 }, }; +struct hdmi_infoframe { + enum HDMI_PACKET_TYPE type; + u8 ver; + u8 len; +}; static inline u32 hdmi_reg_read(struct hdmi_context *hdata, u32 reg_id) { @@ -1267,6 +1302,88 @@ static int hdmi_conf_index(struct hdmi_context *hdata, return hdmi_v14_conf_index(mode); } +static u8 hdmi_chksum(struct hdmi_context *hdata, + u32 start, u8 len, u32 hdr_sum) +{ + int i; + + /* hdr_sum : header0 + header1 + header2 + * start : start address of packet byte1 + * len : packet bytes - 1 */ + for (i = 0; i < len; ++i) + hdr_sum += 0xff & hdmi_reg_read(hdata, start + i * 4); + + /* return 2's complement of 8 bit hdr_sum */ + return (u8)(~(hdr_sum & 0xff) + 1); +} + +static void hdmi_reg_infoframe(struct hdmi_context *hdata, + struct hdmi_infoframe *infoframe) +{ + u32 hdr_sum; + u8 chksum; + u32 aspect_ratio; + u32 mod; + u32 vic; + + DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); + + mod = hdmi_reg_read(hdata, HDMI_MODE_SEL); + if (hdata->dvi_mode) { + hdmi_reg_writeb(hdata, HDMI_VSI_CON, + HDMI_VSI_CON_DO_NOT_TRANSMIT); + hdmi_reg_writeb(hdata, HDMI_AVI_CON, + HDMI_AVI_CON_DO_NOT_TRANSMIT); + hdmi_reg_writeb(hdata, HDMI_AUI_CON, HDMI_AUI_CON_NO_TRAN); + return; + } + + switch (infoframe->type) { + case HDMI_PACKET_TYPE_AVI: + hdmi_reg_writeb(hdata, HDMI_AVI_CON, HDMI_AVI_CON_EVERY_VSYNC); + hdmi_reg_writeb(hdata, HDMI_AVI_HEADER0, infoframe->type); + hdmi_reg_writeb(hdata, HDMI_AVI_HEADER1, infoframe->ver); + hdmi_reg_writeb(hdata, HDMI_AVI_HEADER2, infoframe->len); + hdr_sum = infoframe->type + infoframe->ver + infoframe->len; + + /* Output format zero hardcoded ,RGB YBCR selection */ + hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(1), 0 << 5 | + AVI_ACTIVE_FORMAT_VALID | + AVI_UNDERSCANNED_DISPLAY_VALID); + + aspect_ratio = AVI_PIC_ASPECT_RATIO_16_9; + + hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(2), aspect_ratio | + AVI_SAME_AS_PIC_ASPECT_RATIO); + + if (hdata->type == HDMI_TYPE13) + vic = hdmi_v13_confs[hdata->cur_conf].cea_video_id; + else + vic = hdmi_confs[hdata->cur_conf].cea_video_id; + + hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(4), vic); + + chksum = hdmi_chksum(hdata, HDMI_AVI_BYTE(1), + infoframe->len, hdr_sum); + DRM_DEBUG_KMS("AVI checksum = 0x%x\n", chksum); + hdmi_reg_writeb(hdata, HDMI_AVI_CHECK_SUM, chksum); + break; + case HDMI_PACKET_TYPE_AUI: + hdmi_reg_writeb(hdata, HDMI_AUI_CON, 0x02); + hdmi_reg_writeb(hdata, HDMI_AUI_HEADER0, infoframe->type); + hdmi_reg_writeb(hdata, HDMI_AUI_HEADER1, infoframe->ver); + hdmi_reg_writeb(hdata, HDMI_AUI_HEADER2, infoframe->len); + hdr_sum = infoframe->type + infoframe->ver + infoframe->len; + chksum = hdmi_chksum(hdata, HDMI_AUI_BYTE(1), + infoframe->len, hdr_sum); + DRM_DEBUG_KMS("AUI checksum = 0x%x\n", chksum); + hdmi_reg_writeb(hdata, HDMI_AUI_CHECK_SUM, chksum); + break; + default: + break; + } +} + static bool hdmi_is_connected(void *ctx) { struct hdmi_context *hdata = ctx; @@ -1293,6 +1410,7 @@ static int hdmi_get_edid(void *ctx, struct drm_connector *connector, DRM_DEBUG_KMS("%s : width[%d] x height[%d]\n", (hdata->dvi_mode ? "dvi monitor" : "hdmi monitor"), raw_edid->width_cm, raw_edid->height_cm); + kfree(raw_edid); } else { return -ENODEV; } @@ -1541,6 +1659,8 @@ static void hdmi_conf_reset(struct hdmi_context *hdata) static void hdmi_conf_init(struct hdmi_context *hdata) { + struct hdmi_infoframe infoframe; + /* disable HPD interrupts */ hdmi_reg_writemask(hdata, HDMI_INTC_CON, 0, HDMI_INTC_EN_GLOBAL | HDMI_INTC_EN_HPD_PLUG | HDMI_INTC_EN_HPD_UNPLUG); @@ -1575,9 +1695,17 @@ static void hdmi_conf_init(struct hdmi_context *hdata) hdmi_reg_writeb(hdata, HDMI_V13_AUI_CON, 0x02); hdmi_reg_writeb(hdata, HDMI_V13_ACR_CON, 0x04); } else { + infoframe.type = HDMI_PACKET_TYPE_AVI; + infoframe.ver = HDMI_AVI_VERSION; + infoframe.len = HDMI_AVI_LENGTH; + hdmi_reg_infoframe(hdata, &infoframe); + + infoframe.type = HDMI_PACKET_TYPE_AUI; + infoframe.ver = HDMI_AUI_VERSION; + infoframe.len = HDMI_AUI_LENGTH; + hdmi_reg_infoframe(hdata, &infoframe); + /* enable AVI packet every vsync, fixes purple line problem */ - hdmi_reg_writeb(hdata, HDMI_AVI_CON, 0x02); - hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(1), 2 << 5); hdmi_reg_writemask(hdata, HDMI_CON_1, 2, 3 << 5); } } @@ -1978,9 +2106,18 @@ static void hdmi_mode_fixup(void *ctx, struct drm_connector *connector, index = hdmi_v14_conf_index(m); if (index >= 0) { + struct drm_mode_object base; + struct list_head head; + DRM_INFO("desired mode doesn't exist so\n"); DRM_INFO("use the most suitable mode among modes.\n"); + + /* preserve display mode header while copying. */ + head = adjusted_mode->head; + base = adjusted_mode->base; memcpy(adjusted_mode, m, sizeof(*m)); + adjusted_mode->head = head; + adjusted_mode->base = base; break; } } @@ -2166,27 +2303,27 @@ static int __devinit hdmi_resources_init(struct hdmi_context *hdata) memset(res, 0, sizeof(*res)); /* get clocks, power */ - res->hdmi = clk_get(dev, "hdmi"); + res->hdmi = devm_clk_get(dev, "hdmi"); if (IS_ERR_OR_NULL(res->hdmi)) { DRM_ERROR("failed to get clock 'hdmi'\n"); goto fail; } - res->sclk_hdmi = clk_get(dev, "sclk_hdmi"); + res->sclk_hdmi = devm_clk_get(dev, "sclk_hdmi"); if (IS_ERR_OR_NULL(res->sclk_hdmi)) { DRM_ERROR("failed to get clock 'sclk_hdmi'\n"); goto fail; } - res->sclk_pixel = clk_get(dev, "sclk_pixel"); + res->sclk_pixel = devm_clk_get(dev, "sclk_pixel"); if (IS_ERR_OR_NULL(res->sclk_pixel)) { DRM_ERROR("failed to get clock 'sclk_pixel'\n"); goto fail; } - res->sclk_hdmiphy = clk_get(dev, "sclk_hdmiphy"); + res->sclk_hdmiphy = devm_clk_get(dev, "sclk_hdmiphy"); if (IS_ERR_OR_NULL(res->sclk_hdmiphy)) { DRM_ERROR("failed to get clock 'sclk_hdmiphy'\n"); goto fail; } - res->hdmiphy = clk_get(dev, "hdmiphy"); + res->hdmiphy = devm_clk_get(dev, "hdmiphy"); if (IS_ERR_OR_NULL(res->hdmiphy)) { DRM_ERROR("failed to get clock 'hdmiphy'\n"); goto fail; @@ -2194,7 +2331,7 @@ static int __devinit hdmi_resources_init(struct hdmi_context *hdata) clk_set_parent(res->sclk_hdmi, res->sclk_pixel); - res->regul_bulk = kzalloc(ARRAY_SIZE(supply) * + res->regul_bulk = devm_kzalloc(dev, ARRAY_SIZE(supply) * sizeof(res->regul_bulk[0]), GFP_KERNEL); if (!res->regul_bulk) { DRM_ERROR("failed to get memory for regulators\n"); @@ -2204,7 +2341,7 @@ static int __devinit hdmi_resources_init(struct hdmi_context *hdata) res->regul_bulk[i].supply = supply[i]; res->regul_bulk[i].consumer = NULL; } - ret = regulator_bulk_get(dev, ARRAY_SIZE(supply), res->regul_bulk); + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(supply), res->regul_bulk); if (ret) { DRM_ERROR("failed to get regulators\n"); goto fail; @@ -2217,28 +2354,6 @@ fail: return -ENODEV; } -static int hdmi_resources_cleanup(struct hdmi_context *hdata) -{ - struct hdmi_resources *res = &hdata->res; - - regulator_bulk_free(res->regul_count, res->regul_bulk); - /* kfree is NULL-safe */ - kfree(res->regul_bulk); - if (!IS_ERR_OR_NULL(res->hdmiphy)) - clk_put(res->hdmiphy); - if (!IS_ERR_OR_NULL(res->sclk_hdmiphy)) - clk_put(res->sclk_hdmiphy); - if (!IS_ERR_OR_NULL(res->sclk_pixel)) - clk_put(res->sclk_pixel); - if (!IS_ERR_OR_NULL(res->sclk_hdmi)) - clk_put(res->sclk_hdmi); - if (!IS_ERR_OR_NULL(res->hdmi)) - clk_put(res->hdmi); - memset(res, 0, sizeof(*res)); - - return 0; -} - static struct i2c_client *hdmi_ddc, *hdmi_hdmiphy; void hdmi_attach_ddc_client(struct i2c_client *ddc) @@ -2378,36 +2493,32 @@ static int __devinit hdmi_probe(struct platform_device *pdev) ret = hdmi_resources_init(hdata); if (ret) { - ret = -EINVAL; DRM_ERROR("hdmi_resources_init failed\n"); - goto err_data; + return -EINVAL; } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { DRM_ERROR("failed to find registers\n"); - ret = -ENOENT; - goto err_resource; + return -ENOENT; } hdata->regs = devm_request_and_ioremap(&pdev->dev, res); if (!hdata->regs) { DRM_ERROR("failed to map registers\n"); - ret = -ENXIO; - goto err_resource; + return -ENXIO; } - ret = gpio_request(hdata->hpd_gpio, "HPD"); + ret = devm_gpio_request(&pdev->dev, hdata->hpd_gpio, "HPD"); if (ret) { DRM_ERROR("failed to request HPD gpio\n"); - goto err_resource; + return ret; } /* DDC i2c driver */ if (i2c_add_driver(&ddc_driver)) { DRM_ERROR("failed to register ddc i2c driver\n"); - ret = -ENOENT; - goto err_gpio; + return -ENOENT; } hdata->ddc_port = hdmi_ddc; @@ -2470,11 +2581,6 @@ err_hdmiphy: i2c_del_driver(&hdmiphy_driver); err_ddc: i2c_del_driver(&ddc_driver); -err_gpio: - gpio_free(hdata->hpd_gpio); -err_resource: - hdmi_resources_cleanup(hdata); -err_data: return ret; } @@ -2491,9 +2597,6 @@ static int __devexit hdmi_remove(struct platform_device *pdev) free_irq(hdata->internal_irq, hdata); free_irq(hdata->external_irq, hdata); - gpio_free(hdata->hpd_gpio); - - hdmi_resources_cleanup(hdata); /* hdmiphy i2c driver */ i2c_del_driver(&hdmiphy_driver); diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index e7fbb82..40a6e19 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -36,6 +36,7 @@ #include "exynos_drm_drv.h" #include "exynos_drm_hdmi.h" +#include "exynos_drm_iommu.h" #define get_mixer_context(dev) platform_get_drvdata(to_platform_device(dev)) @@ -80,6 +81,7 @@ enum mixer_version_id { struct mixer_context { struct device *dev; + struct drm_device *drm_dev; int pipe; bool interlace; bool powered; @@ -90,6 +92,7 @@ struct mixer_context { struct mixer_resources mixer_res; struct hdmi_win_data win_data[MIXER_WIN_NR]; enum mixer_version_id mxr_ver; + void *parent_ctx; }; struct mixer_drv_data { @@ -665,6 +668,24 @@ static void mixer_win_reset(struct mixer_context *ctx) spin_unlock_irqrestore(&res->reg_slock, flags); } +static int mixer_iommu_on(void *ctx, bool enable) +{ + struct exynos_drm_hdmi_context *drm_hdmi_ctx; + struct mixer_context *mdata = ctx; + struct drm_device *drm_dev; + + drm_hdmi_ctx = mdata->parent_ctx; + drm_dev = drm_hdmi_ctx->drm_dev; + + if (is_drm_iommu_supported(drm_dev)) { + if (enable) + return drm_iommu_attach_device(drm_dev, mdata->dev); + + drm_iommu_detach_device(drm_dev, mdata->dev); + } + return 0; +} + static void mixer_poweron(struct mixer_context *ctx) { struct mixer_resources *res = &ctx->mixer_res; @@ -866,6 +887,7 @@ static void mixer_win_disable(void *ctx, int win) static struct exynos_mixer_ops mixer_ops = { /* manager */ + .iommu_on = mixer_iommu_on, .enable_vblank = mixer_enable_vblank, .disable_vblank = mixer_disable_vblank, .dpms = mixer_dpms, @@ -884,7 +906,6 @@ static void mixer_finish_pageflip(struct drm_device *drm_dev, int crtc) struct drm_pending_vblank_event *e, *t; struct timeval now; unsigned long flags; - bool is_checked = false; spin_lock_irqsave(&drm_dev->event_lock, flags); @@ -894,7 +915,6 @@ static void mixer_finish_pageflip(struct drm_device *drm_dev, int crtc) if (crtc != e->pipe) continue; - is_checked = true; do_gettimeofday(&now); e->event.sequence = 0; e->event.tv_sec = now.tv_sec; @@ -902,16 +922,9 @@ static void mixer_finish_pageflip(struct drm_device *drm_dev, int crtc) list_move_tail(&e->base.link, &e->base.file_priv->event_list); wake_up_interruptible(&e->base.file_priv->event_wait); + drm_vblank_put(drm_dev, crtc); } - if (is_checked) - /* - * call drm_vblank_put only in case that drm_vblank_get was - * called. - */ - if (atomic_read(&drm_dev->vblank_refcount[crtc]) > 0) - drm_vblank_put(drm_dev, crtc); - spin_unlock_irqrestore(&drm_dev->event_lock, flags); } @@ -971,57 +984,45 @@ static int __devinit mixer_resources_init(struct exynos_drm_hdmi_context *ctx, spin_lock_init(&mixer_res->reg_slock); - mixer_res->mixer = clk_get(dev, "mixer"); + mixer_res->mixer = devm_clk_get(dev, "mixer"); if (IS_ERR_OR_NULL(mixer_res->mixer)) { dev_err(dev, "failed to get clock 'mixer'\n"); - ret = -ENODEV; - goto fail; + return -ENODEV; } - mixer_res->sclk_hdmi = clk_get(dev, "sclk_hdmi"); + mixer_res->sclk_hdmi = devm_clk_get(dev, "sclk_hdmi"); if (IS_ERR_OR_NULL(mixer_res->sclk_hdmi)) { dev_err(dev, "failed to get clock 'sclk_hdmi'\n"); - ret = -ENODEV; - goto fail; + return -ENODEV; } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (res == NULL) { dev_err(dev, "get memory resource failed.\n"); - ret = -ENXIO; - goto fail; + return -ENXIO; } mixer_res->mixer_regs = devm_ioremap(&pdev->dev, res->start, resource_size(res)); if (mixer_res->mixer_regs == NULL) { dev_err(dev, "register mapping failed.\n"); - ret = -ENXIO; - goto fail; + return -ENXIO; } res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (res == NULL) { dev_err(dev, "get interrupt resource failed.\n"); - ret = -ENXIO; - goto fail; + return -ENXIO; } ret = devm_request_irq(&pdev->dev, res->start, mixer_irq_handler, 0, "drm_mixer", ctx); if (ret) { dev_err(dev, "request interrupt failed.\n"); - goto fail; + return ret; } mixer_res->irq = res->start; return 0; - -fail: - if (!IS_ERR_OR_NULL(mixer_res->sclk_hdmi)) - clk_put(mixer_res->sclk_hdmi); - if (!IS_ERR_OR_NULL(mixer_res->mixer)) - clk_put(mixer_res->mixer); - return ret; } static int __devinit vp_resources_init(struct exynos_drm_hdmi_context *ctx, @@ -1031,25 +1032,21 @@ static int __devinit vp_resources_init(struct exynos_drm_hdmi_context *ctx, struct device *dev = &pdev->dev; struct mixer_resources *mixer_res = &mixer_ctx->mixer_res; struct resource *res; - int ret; - mixer_res->vp = clk_get(dev, "vp"); + mixer_res->vp = devm_clk_get(dev, "vp"); if (IS_ERR_OR_NULL(mixer_res->vp)) { dev_err(dev, "failed to get clock 'vp'\n"); - ret = -ENODEV; - goto fail; + return -ENODEV; } - mixer_res->sclk_mixer = clk_get(dev, "sclk_mixer"); + mixer_res->sclk_mixer = devm_clk_get(dev, "sclk_mixer"); if (IS_ERR_OR_NULL(mixer_res->sclk_mixer)) { dev_err(dev, "failed to get clock 'sclk_mixer'\n"); - ret = -ENODEV; - goto fail; + return -ENODEV; } - mixer_res->sclk_dac = clk_get(dev, "sclk_dac"); + mixer_res->sclk_dac = devm_clk_get(dev, "sclk_dac"); if (IS_ERR_OR_NULL(mixer_res->sclk_dac)) { dev_err(dev, "failed to get clock 'sclk_dac'\n"); - ret = -ENODEV; - goto fail; + return -ENODEV; } if (mixer_res->sclk_hdmi) @@ -1058,28 +1055,17 @@ static int __devinit vp_resources_init(struct exynos_drm_hdmi_context *ctx, res = platform_get_resource(pdev, IORESOURCE_MEM, 1); if (res == NULL) { dev_err(dev, "get memory resource failed.\n"); - ret = -ENXIO; - goto fail; + return -ENXIO; } mixer_res->vp_regs = devm_ioremap(&pdev->dev, res->start, resource_size(res)); if (mixer_res->vp_regs == NULL) { dev_err(dev, "register mapping failed.\n"); - ret = -ENXIO; - goto fail; + return -ENXIO; } return 0; - -fail: - if (!IS_ERR_OR_NULL(mixer_res->sclk_dac)) - clk_put(mixer_res->sclk_dac); - if (!IS_ERR_OR_NULL(mixer_res->sclk_mixer)) - clk_put(mixer_res->sclk_mixer); - if (!IS_ERR_OR_NULL(mixer_res->vp)) - clk_put(mixer_res->vp); - return ret; } static struct mixer_drv_data exynos5_mxr_drv_data = { @@ -1149,6 +1135,7 @@ static int __devinit mixer_probe(struct platform_device *pdev) } ctx->dev = &pdev->dev; + ctx->parent_ctx = (void *)drm_hdmi_ctx; drm_hdmi_ctx->ctx = (void *)ctx; ctx->vp_enabled = drv->is_vp_enabled; ctx->mxr_ver = drv->version; diff --git a/drivers/gpu/drm/exynos/regs-hdmi.h b/drivers/gpu/drm/exynos/regs-hdmi.h index 9cc7c5e..970cdb5 100644 --- a/drivers/gpu/drm/exynos/regs-hdmi.h +++ b/drivers/gpu/drm/exynos/regs-hdmi.h @@ -298,14 +298,14 @@ #define HDMI_AVI_HEADER1 HDMI_CORE_BASE(0x0714) #define HDMI_AVI_HEADER2 HDMI_CORE_BASE(0x0718) #define HDMI_AVI_CHECK_SUM HDMI_CORE_BASE(0x071C) -#define HDMI_AVI_BYTE(n) HDMI_CORE_BASE(0x0720 + 4 * (n)) +#define HDMI_AVI_BYTE(n) HDMI_CORE_BASE(0x0720 + 4 * (n-1)) #define HDMI_AUI_CON HDMI_CORE_BASE(0x0800) #define HDMI_AUI_HEADER0 HDMI_CORE_BASE(0x0810) #define HDMI_AUI_HEADER1 HDMI_CORE_BASE(0x0814) #define HDMI_AUI_HEADER2 HDMI_CORE_BASE(0x0818) #define HDMI_AUI_CHECK_SUM HDMI_CORE_BASE(0x081C) -#define HDMI_AUI_BYTE(n) HDMI_CORE_BASE(0x0820 + 4 * (n)) +#define HDMI_AUI_BYTE(n) HDMI_CORE_BASE(0x0820 + 4 * (n-1)) #define HDMI_MPG_CON HDMI_CORE_BASE(0x0900) #define HDMI_MPG_CHECK_SUM HDMI_CORE_BASE(0x091C) @@ -338,6 +338,19 @@ #define HDMI_AN_SEED_2 HDMI_CORE_BASE(0x0E60) #define HDMI_AN_SEED_3 HDMI_CORE_BASE(0x0E64) +/* AVI bit definition */ +#define HDMI_AVI_CON_DO_NOT_TRANSMIT (0 << 1) +#define HDMI_AVI_CON_EVERY_VSYNC (1 << 1) + +#define AVI_ACTIVE_FORMAT_VALID (1 << 4) +#define AVI_UNDERSCANNED_DISPLAY_VALID (1 << 1) + +/* AUI bit definition */ +#define HDMI_AUI_CON_NO_TRAN (0 << 0) + +/* VSI bit definition */ +#define HDMI_VSI_CON_DO_NOT_TRANSMIT (0 << 0) + /* HDCP related registers */ #define HDMI_HDCP_SHA1(n) HDMI_CORE_BASE(0x7000 + 4 * (n)) #define HDMI_HDCP_KSV_LIST(n) HDMI_CORE_BASE(0x7050 + 4 * (n)) |