diff options
Diffstat (limited to 'drivers/gpu/drm/udl')
| -rw-r--r-- | drivers/gpu/drm/udl/udl_connector.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/udl/udl_dmabuf.c | 18 | ||||
| -rw-r--r-- | drivers/gpu/drm/udl/udl_drv.h | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/udl/udl_fb.c | 28 | ||||
| -rw-r--r-- | drivers/gpu/drm/udl/udl_gem.c | 15 | ||||
| -rw-r--r-- | drivers/gpu/drm/udl/udl_main.c | 45 | ||||
| -rw-r--r-- | drivers/gpu/drm/udl/udl_modeset.c | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/udl/udl_transfer.c | 49 |
8 files changed, 73 insertions, 98 deletions
diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c index 09dc585aa46f..68e88bed77ca 100644 --- a/drivers/gpu/drm/udl/udl_connector.c +++ b/drivers/gpu/drm/udl/udl_connector.c @@ -99,7 +99,7 @@ static int udl_get_modes(struct drm_connector *connector) struct udl_drm_connector, connector); - drm_mode_connector_update_edid_property(connector, udl_connector->edid); + drm_connector_update_edid_property(connector, udl_connector->edid); if (udl_connector->edid) return drm_add_edid_modes(connector, udl_connector->edid); return 0; @@ -200,7 +200,7 @@ int udl_connector_init(struct drm_device *dev, struct drm_encoder *encoder) drm_connector_helper_add(connector, &udl_connector_helper_funcs); drm_connector_register(connector); - drm_mode_connector_attach_encoder(connector, encoder); + drm_connector_attach_encoder(connector, encoder); connector->polled = DRM_CONNECTOR_POLL_HPD | DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT; diff --git a/drivers/gpu/drm/udl/udl_dmabuf.c b/drivers/gpu/drm/udl/udl_dmabuf.c index 0a20695eb120..556f62662aa9 100644 --- a/drivers/gpu/drm/udl/udl_dmabuf.c +++ b/drivers/gpu/drm/udl/udl_dmabuf.c @@ -29,7 +29,6 @@ struct udl_drm_dmabuf_attachment { }; static int udl_attach_dma_buf(struct dma_buf *dmabuf, - struct device *dev, struct dma_buf_attachment *attach) { struct udl_drm_dmabuf_attachment *udl_attach; @@ -158,27 +157,12 @@ static void *udl_dmabuf_kmap(struct dma_buf *dma_buf, unsigned long page_num) return NULL; } -static void *udl_dmabuf_kmap_atomic(struct dma_buf *dma_buf, - unsigned long page_num) -{ - /* TODO */ - - return NULL; -} - static void udl_dmabuf_kunmap(struct dma_buf *dma_buf, unsigned long page_num, void *addr) { /* TODO */ } -static void udl_dmabuf_kunmap_atomic(struct dma_buf *dma_buf, - unsigned long page_num, - void *addr) -{ - /* TODO */ -} - static int udl_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma) { @@ -193,9 +177,7 @@ static const struct dma_buf_ops udl_dmabuf_ops = { .map_dma_buf = udl_map_dma_buf, .unmap_dma_buf = udl_unmap_dma_buf, .map = udl_dmabuf_kmap, - .map_atomic = udl_dmabuf_kmap_atomic, .unmap = udl_dmabuf_kunmap, - .unmap_atomic = udl_dmabuf_kunmap_atomic, .mmap = udl_dmabuf_mmap, .release = drm_gem_dmabuf_release, }; diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h index 55c0cc309198..e9e9b1ff678e 100644 --- a/drivers/gpu/drm/udl/udl_drv.h +++ b/drivers/gpu/drm/udl/udl_drv.h @@ -16,6 +16,7 @@ #include <linux/usb.h> #include <drm/drm_gem.h> +#include <linux/mm_types.h> #define DRIVER_NAME "udl" #define DRIVER_DESC "DisplayLink" @@ -112,7 +113,7 @@ udl_fb_user_fb_create(struct drm_device *dev, struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd); -int udl_render_hline(struct drm_device *dev, int bpp, struct urb **urb_ptr, +int udl_render_hline(struct drm_device *dev, int log_bpp, struct urb **urb_ptr, const char *front, char **urb_buf_ptr, u32 byte_offset, u32 device_byte_offset, u32 byte_width, int *ident_ptr, int *sent_ptr); @@ -136,7 +137,7 @@ void udl_gem_put_pages(struct udl_gem_object *obj); int udl_gem_vmap(struct udl_gem_object *obj); void udl_gem_vunmap(struct udl_gem_object *obj); int udl_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); -int udl_gem_fault(struct vm_fault *vmf); +vm_fault_t udl_gem_fault(struct vm_fault *vmf); int udl_handle_damage(struct udl_framebuffer *fb, int x, int y, int width, int height); diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c index 2ebdc6d5a76e..dbb62f6eb48a 100644 --- a/drivers/gpu/drm/udl/udl_fb.c +++ b/drivers/gpu/drm/udl/udl_fb.c @@ -90,7 +90,10 @@ int udl_handle_damage(struct udl_framebuffer *fb, int x, int y, int bytes_identical = 0; struct urb *urb; int aligned_x; - int bpp = fb->base.format->cpp[0]; + int log_bpp; + + BUG_ON(!is_power_of_2(fb->base.format->cpp[0])); + log_bpp = __ffs(fb->base.format->cpp[0]); if (!fb->active_16) return 0; @@ -125,19 +128,22 @@ int udl_handle_damage(struct udl_framebuffer *fb, int x, int y, for (i = y; i < y + height ; i++) { const int line_offset = fb->base.pitches[0] * i; - const int byte_offset = line_offset + (x * bpp); - const int dev_byte_offset = (fb->base.width * bpp * i) + (x * bpp); - if (udl_render_hline(dev, bpp, &urb, + const int byte_offset = line_offset + (x << log_bpp); + const int dev_byte_offset = (fb->base.width * i + x) << log_bpp; + if (udl_render_hline(dev, log_bpp, &urb, (char *) fb->obj->vmapping, &cmd, byte_offset, dev_byte_offset, - width * bpp, + width << log_bpp, &bytes_identical, &bytes_sent)) goto error; } if (cmd > (char *) urb->transfer_buffer) { /* Send partial buffer remaining before exiting */ - int len = cmd - (char *) urb->transfer_buffer; + int len; + if (cmd < (char *) urb->transfer_buffer + urb->transfer_buffer_length) + *cmd++ = 0xAF; + len = cmd - (char *) urb->transfer_buffer; ret = udl_submit_urb(dev, urb, len); bytes_sent += len; } else @@ -146,7 +152,7 @@ int udl_handle_damage(struct udl_framebuffer *fb, int x, int y, error: atomic_add(bytes_sent, &udl->bytes_sent); atomic_add(bytes_identical, &udl->bytes_identical); - atomic_add(width*height*bpp, &udl->bytes_rendered); + atomic_add((width * height) << log_bpp, &udl->bytes_rendered); end_cycles = get_cycles(); atomic_add(((unsigned int) ((end_cycles - start_cycles) >> 10)), /* Kcycles */ @@ -172,7 +178,7 @@ static int udl_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) pos = (unsigned long)info->fix.smem_start + offset; - pr_notice("mmap() framebuffer addr:%lu size:%lu\n", + pr_debug("mmap() framebuffer addr:%lu size:%lu\n", pos, size); /* We don't want the framebuffer to be mapped encrypted */ @@ -218,7 +224,7 @@ static int udl_fb_open(struct fb_info *info, int user) struct fb_deferred_io *fbdefio; - fbdefio = kmalloc(sizeof(struct fb_deferred_io), GFP_KERNEL); + fbdefio = kzalloc(sizeof(struct fb_deferred_io), GFP_KERNEL); if (fbdefio) { fbdefio->delay = DL_DEFIO_WRITE_DELAY; @@ -230,7 +236,7 @@ static int udl_fb_open(struct fb_info *info, int user) } #endif - pr_notice("open /dev/fb%d user=%d fb_info=%p count=%d\n", + pr_debug("open /dev/fb%d user=%d fb_info=%p count=%d\n", info->node, user, info, ufbdev->fb_count); return 0; @@ -255,7 +261,7 @@ static int udl_fb_release(struct fb_info *info, int user) } #endif - pr_warn("released /dev/fb%d user=%d count=%d\n", + pr_debug("released /dev/fb%d user=%d count=%d\n", info->node, user, ufbdev->fb_count); return 0; diff --git a/drivers/gpu/drm/udl/udl_gem.c b/drivers/gpu/drm/udl/udl_gem.c index 9a15cce22cce..d5a23295dd80 100644 --- a/drivers/gpu/drm/udl/udl_gem.c +++ b/drivers/gpu/drm/udl/udl_gem.c @@ -100,13 +100,12 @@ int udl_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma) return ret; } -int udl_gem_fault(struct vm_fault *vmf) +vm_fault_t udl_gem_fault(struct vm_fault *vmf) { struct vm_area_struct *vma = vmf->vma; struct udl_gem_object *obj = to_udl_bo(vma->vm_private_data); struct page *page; unsigned int page_offset; - int ret = 0; page_offset = (vmf->address - vma->vm_start) >> PAGE_SHIFT; @@ -114,17 +113,7 @@ int udl_gem_fault(struct vm_fault *vmf) return VM_FAULT_SIGBUS; page = obj->pages[page_offset]; - ret = vm_insert_page(vma, vmf->address, page); - switch (ret) { - case -EAGAIN: - case 0: - case -ERESTARTSYS: - return VM_FAULT_NOPAGE; - case -ENOMEM: - return VM_FAULT_OOM; - default: - return VM_FAULT_SIGBUS; - } + return vmf_insert_page(vma, vmf->address, page); } int udl_gem_get_pages(struct udl_gem_object *obj) diff --git a/drivers/gpu/drm/udl/udl_main.c b/drivers/gpu/drm/udl/udl_main.c index d518de8f496b..f455f095a146 100644 --- a/drivers/gpu/drm/udl/udl_main.c +++ b/drivers/gpu/drm/udl/udl_main.c @@ -170,25 +170,19 @@ static void udl_free_urb_list(struct drm_device *dev) struct list_head *node; struct urb_node *unode; struct urb *urb; - int ret; - unsigned long flags; DRM_DEBUG("Waiting for completes and freeing all render urbs\n"); /* keep waiting and freeing, until we've got 'em all */ while (count--) { + down(&udl->urbs.limit_sem); - /* Getting interrupted means a leak, but ok at shutdown*/ - ret = down_interruptible(&udl->urbs.limit_sem); - if (ret) - break; - - spin_lock_irqsave(&udl->urbs.lock, flags); + spin_lock_irq(&udl->urbs.lock); node = udl->urbs.list.next; /* have reserved one with sem */ list_del_init(node); - spin_unlock_irqrestore(&udl->urbs.lock, flags); + spin_unlock_irq(&udl->urbs.lock); unode = list_entry(node, struct urb_node, entry); urb = unode->urb; @@ -205,17 +199,22 @@ static void udl_free_urb_list(struct drm_device *dev) static int udl_alloc_urb_list(struct drm_device *dev, int count, size_t size) { struct udl_device *udl = dev->dev_private; - int i = 0; struct urb *urb; struct urb_node *unode; char *buf; + size_t wanted_size = count * size; spin_lock_init(&udl->urbs.lock); +retry: udl->urbs.size = size; INIT_LIST_HEAD(&udl->urbs.list); - while (i < count) { + sema_init(&udl->urbs.limit_sem, 0); + udl->urbs.count = 0; + udl->urbs.available = 0; + + while (udl->urbs.count * size < wanted_size) { unode = kzalloc(sizeof(struct urb_node), GFP_KERNEL); if (!unode) break; @@ -231,11 +230,16 @@ static int udl_alloc_urb_list(struct drm_device *dev, int count, size_t size) } unode->urb = urb; - buf = usb_alloc_coherent(udl->udev, MAX_TRANSFER, GFP_KERNEL, + buf = usb_alloc_coherent(udl->udev, size, GFP_KERNEL, &urb->transfer_dma); if (!buf) { kfree(unode); usb_free_urb(urb); + if (size > PAGE_SIZE) { + size /= 2; + udl_free_urb_list(dev); + goto retry; + } break; } @@ -246,16 +250,14 @@ static int udl_alloc_urb_list(struct drm_device *dev, int count, size_t size) list_add_tail(&unode->entry, &udl->urbs.list); - i++; + up(&udl->urbs.limit_sem); + udl->urbs.count++; + udl->urbs.available++; } - sema_init(&udl->urbs.limit_sem, i); - udl->urbs.count = i; - udl->urbs.available = i; - - DRM_DEBUG("allocated %d %d byte urbs\n", i, (int) size); + DRM_DEBUG("allocated %d %d byte urbs\n", udl->urbs.count, (int) size); - return i; + return udl->urbs.count; } struct urb *udl_get_urb(struct drm_device *dev) @@ -265,7 +267,6 @@ struct urb *udl_get_urb(struct drm_device *dev) struct list_head *entry; struct urb_node *unode; struct urb *urb = NULL; - unsigned long flags; /* Wait for an in-flight buffer to complete and get re-queued */ ret = down_timeout(&udl->urbs.limit_sem, GET_URB_TIMEOUT); @@ -276,14 +277,14 @@ struct urb *udl_get_urb(struct drm_device *dev) goto error; } - spin_lock_irqsave(&udl->urbs.lock, flags); + spin_lock_irq(&udl->urbs.lock); BUG_ON(list_empty(&udl->urbs.list)); /* reserved one with limit_sem */ entry = udl->urbs.list.next; list_del_init(entry); udl->urbs.available--; - spin_unlock_irqrestore(&udl->urbs.lock, flags); + spin_unlock_irq(&udl->urbs.lock); unode = list_entry(entry, struct urb_node, entry); urb = unode->urb; diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c index 5bcae7649795..7e37765cf5ac 100644 --- a/drivers/gpu/drm/udl/udl_modeset.c +++ b/drivers/gpu/drm/udl/udl_modeset.c @@ -243,7 +243,7 @@ static int udl_crtc_write_mode_to_hw(struct drm_crtc *crtc) memcpy(buf, udl->mode_buf, udl->mode_buf_len); retval = udl_submit_urb(dev, urb, udl->mode_buf_len); - DRM_INFO("write mode info %d\n", udl->mode_buf_len); + DRM_DEBUG("write mode info %d\n", udl->mode_buf_len); return retval; } @@ -366,7 +366,6 @@ static int udl_crtc_page_flip(struct drm_crtc *crtc, { struct udl_framebuffer *ufb = to_udl_fb(fb); struct drm_device *dev = crtc->dev; - unsigned long flags; struct drm_framebuffer *old_fb = crtc->primary->fb; if (old_fb) { @@ -377,10 +376,10 @@ static int udl_crtc_page_flip(struct drm_crtc *crtc, udl_handle_damage(ufb, 0, 0, fb->width, fb->height); - spin_lock_irqsave(&dev->event_lock, flags); + spin_lock_irq(&dev->event_lock); if (event) drm_crtc_send_vblank_event(crtc, event); - spin_unlock_irqrestore(&dev->event_lock, flags); + spin_unlock_irq(&dev->event_lock); crtc->primary->fb = fb; return 0; diff --git a/drivers/gpu/drm/udl/udl_transfer.c b/drivers/gpu/drm/udl/udl_transfer.c index 0c87b1ac6b68..ce87661e544f 100644 --- a/drivers/gpu/drm/udl/udl_transfer.c +++ b/drivers/gpu/drm/udl/udl_transfer.c @@ -13,7 +13,6 @@ #include <linux/module.h> #include <linux/slab.h> #include <linux/fb.h> -#include <linux/prefetch.h> #include <asm/unaligned.h> #include <drm/drmP.h> @@ -51,9 +50,6 @@ static int udl_trim_hline(const u8 *bback, const u8 **bfront, int *width_bytes) int start = width; int end = width; - prefetch((void *) front); - prefetch((void *) back); - for (j = 0; j < width; j++) { if (back[j] != front[j]) { start = j; @@ -83,12 +79,12 @@ static inline u16 pixel32_to_be16(const uint32_t pixel) ((pixel >> 8) & 0xf800)); } -static inline u16 get_pixel_val16(const uint8_t *pixel, int bpp) +static inline u16 get_pixel_val16(const uint8_t *pixel, int log_bpp) { - u16 pixel_val16 = 0; - if (bpp == 2) + u16 pixel_val16; + if (log_bpp == 1) pixel_val16 = *(const uint16_t *)pixel; - else if (bpp == 4) + else pixel_val16 = pixel32_to_be16(*(const uint32_t *)pixel); return pixel_val16; } @@ -125,8 +121,9 @@ static void udl_compress_hline16( const u8 *const pixel_end, uint32_t *device_address_ptr, uint8_t **command_buffer_ptr, - const uint8_t *const cmd_buffer_end, int bpp) + const uint8_t *const cmd_buffer_end, int log_bpp) { + const int bpp = 1 << log_bpp; const u8 *pixel = *pixel_start_ptr; uint32_t dev_addr = *device_address_ptr; uint8_t *cmd = *command_buffer_ptr; @@ -139,8 +136,6 @@ static void udl_compress_hline16( const u8 *cmd_pixel_start, *cmd_pixel_end = NULL; uint16_t pixel_val16; - prefetchw((void *) cmd); /* pull in one cache line at least */ - *cmd++ = 0xaf; *cmd++ = 0x6b; *cmd++ = (uint8_t) ((dev_addr >> 16) & 0xFF); @@ -153,12 +148,11 @@ static void udl_compress_hline16( raw_pixels_count_byte = cmd++; /* we'll know this later */ raw_pixel_start = pixel; - cmd_pixel_end = pixel + (min(MAX_CMD_PIXELS + 1, - min((int)(pixel_end - pixel) / bpp, - (int)(cmd_buffer_end - cmd) / 2))) * bpp; + cmd_pixel_end = pixel + (min3(MAX_CMD_PIXELS + 1UL, + (unsigned long)(pixel_end - pixel) >> log_bpp, + (unsigned long)(cmd_buffer_end - 1 - cmd) / 2) << log_bpp); - prefetch_range((void *) pixel, (cmd_pixel_end - pixel) * bpp); - pixel_val16 = get_pixel_val16(pixel, bpp); + pixel_val16 = get_pixel_val16(pixel, log_bpp); while (pixel < cmd_pixel_end) { const u8 *const start = pixel; @@ -170,7 +164,7 @@ static void udl_compress_hline16( pixel += bpp; while (pixel < cmd_pixel_end) { - pixel_val16 = get_pixel_val16(pixel, bpp); + pixel_val16 = get_pixel_val16(pixel, log_bpp); if (pixel_val16 != repeating_pixel_val16) break; pixel += bpp; @@ -179,10 +173,10 @@ static void udl_compress_hline16( if (unlikely(pixel > start + bpp)) { /* go back and fill in raw pixel count */ *raw_pixels_count_byte = (((start - - raw_pixel_start) / bpp) + 1) & 0xFF; + raw_pixel_start) >> log_bpp) + 1) & 0xFF; /* immediately after raw data is repeat byte */ - *cmd++ = (((pixel - start) / bpp) - 1) & 0xFF; + *cmd++ = (((pixel - start) >> log_bpp) - 1) & 0xFF; /* Then start another raw pixel span */ raw_pixel_start = pixel; @@ -192,11 +186,14 @@ static void udl_compress_hline16( if (pixel > raw_pixel_start) { /* finalize last RAW span */ - *raw_pixels_count_byte = ((pixel-raw_pixel_start) / bpp) & 0xFF; + *raw_pixels_count_byte = ((pixel - raw_pixel_start) >> log_bpp) & 0xFF; + } else { + /* undo unused byte */ + cmd--; } - *cmd_pixels_count_byte = ((pixel - cmd_pixel_start) / bpp) & 0xFF; - dev_addr += ((pixel - cmd_pixel_start) / bpp) * 2; + *cmd_pixels_count_byte = ((pixel - cmd_pixel_start) >> log_bpp) & 0xFF; + dev_addr += ((pixel - cmd_pixel_start) >> log_bpp) * 2; } if (cmd_buffer_end <= MIN_RLX_CMD_BYTES + cmd) { @@ -219,19 +216,19 @@ static void udl_compress_hline16( * (that we can only write to, slowly, and can never read), and (optionally) * our shadow copy that tracks what's been sent to that hardware buffer. */ -int udl_render_hline(struct drm_device *dev, int bpp, struct urb **urb_ptr, +int udl_render_hline(struct drm_device *dev, int log_bpp, struct urb **urb_ptr, const char *front, char **urb_buf_ptr, u32 byte_offset, u32 device_byte_offset, u32 byte_width, int *ident_ptr, int *sent_ptr) { const u8 *line_start, *line_end, *next_pixel; - u32 base16 = 0 + (device_byte_offset / bpp) * 2; + u32 base16 = 0 + (device_byte_offset >> log_bpp) * 2; struct urb *urb = *urb_ptr; u8 *cmd = *urb_buf_ptr; u8 *cmd_end = (u8 *) urb->transfer_buffer + urb->transfer_buffer_length; - BUG_ON(!(bpp == 2 || bpp == 4)); + BUG_ON(!(log_bpp == 1 || log_bpp == 2)); line_start = (u8 *) (front + byte_offset); next_pixel = line_start; @@ -241,7 +238,7 @@ int udl_render_hline(struct drm_device *dev, int bpp, struct urb **urb_ptr, udl_compress_hline16(&next_pixel, line_end, &base16, - (u8 **) &cmd, (u8 *) cmd_end, bpp); + (u8 **) &cmd, (u8 *) cmd_end, log_bpp); if (cmd >= cmd_end) { int len = cmd - (u8 *) urb->transfer_buffer; |
