Use the fbdev deferred io support in drm_fb_helper. The (struct fb_ops *)->fb_{fillrect,copyarea,imageblit} functions will now be deferred in the same way that mmap damage is, instead of being flushed directly. This patch has only been compile tested.
Signed-off-by: Noralf Trønnes noralf@tronnes.org --- drivers/gpu/drm/qxl/qxl_display.c | 9 +- drivers/gpu/drm/qxl/qxl_drv.h | 7 +- drivers/gpu/drm/qxl/qxl_fb.c | 220 ++++++++++---------------------------- drivers/gpu/drm/qxl/qxl_kms.c | 4 - 4 files changed, 62 insertions(+), 178 deletions(-)
diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c index 030409a..9a03524 100644 --- a/drivers/gpu/drm/qxl/qxl_display.c +++ b/drivers/gpu/drm/qxl/qxl_display.c @@ -465,7 +465,7 @@ static const struct drm_crtc_funcs qxl_crtc_funcs = { .page_flip = qxl_crtc_page_flip, };
-static void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb) +void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb) { struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
@@ -527,12 +527,13 @@ int qxl_framebuffer_init(struct drm_device *dev, struct qxl_framebuffer *qfb, const struct drm_mode_fb_cmd2 *mode_cmd, - struct drm_gem_object *obj) + struct drm_gem_object *obj, + const struct drm_framebuffer_funcs *funcs) { int ret;
qfb->obj = obj; - ret = drm_framebuffer_init(dev, &qfb->base, &qxl_fb_funcs); + ret = drm_framebuffer_init(dev, &qfb->base, funcs); if (ret) { qfb->obj = NULL; return ret; @@ -999,7 +1000,7 @@ qxl_user_framebuffer_create(struct drm_device *dev, if (qxl_fb == NULL) return NULL;
- ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj); + ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj, &qxl_fb_funcs); if (ret) { kfree(qxl_fb); drm_gem_object_unreference_unlocked(obj); diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h index 3f3897e..3ad6604 100644 --- a/drivers/gpu/drm/qxl/qxl_drv.h +++ b/drivers/gpu/drm/qxl/qxl_drv.h @@ -324,8 +324,6 @@ struct qxl_device { struct workqueue_struct *gc_queue; struct work_struct gc_work;
- struct work_struct fb_work; - struct drm_property *hotplug_mode_update_property; int monitors_config_width; int monitors_config_height; @@ -389,11 +387,13 @@ int qxl_get_handle_for_primary_fb(struct qxl_device *qdev, void qxl_fbdev_set_suspend(struct qxl_device *qdev, int state);
/* qxl_display.c */ +void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb); int qxl_framebuffer_init(struct drm_device *dev, struct qxl_framebuffer *rfb, const struct drm_mode_fb_cmd2 *mode_cmd, - struct drm_gem_object *obj); + struct drm_gem_object *obj, + const struct drm_framebuffer_funcs *funcs); void qxl_display_read_client_monitors_config(struct qxl_device *qdev); void qxl_send_monitors_config(struct qxl_device *qdev); int qxl_create_monitors_object(struct qxl_device *qdev); @@ -553,7 +553,6 @@ int qxl_irq_init(struct qxl_device *qdev); irqreturn_t qxl_irq_handler(int irq, void *arg);
/* qxl_fb.c */ -int qxl_fb_init(struct qxl_device *qdev); bool qxl_fbdev_qobj_is_fb(struct qxl_device *qdev, struct qxl_bo *qobj);
int qxl_debugfs_add_files(struct qxl_device *qdev, diff --git a/drivers/gpu/drm/qxl/qxl_fb.c b/drivers/gpu/drm/qxl/qxl_fb.c index 06f032d..090dcee 100644 --- a/drivers/gpu/drm/qxl/qxl_fb.c +++ b/drivers/gpu/drm/qxl/qxl_fb.c @@ -30,6 +30,7 @@ #include "drm/drm.h" #include "drm/drm_crtc.h" #include "drm/drm_crtc_helper.h" +#include "drm/drm_rect.h" #include "qxl_drv.h"
#include "qxl_object.h" @@ -46,15 +47,6 @@ struct qxl_fbdev { struct list_head delayed_ops; void *shadow; int size; - - /* dirty memory logging */ - struct { - spinlock_t lock; - unsigned x1; - unsigned y1; - unsigned x2; - unsigned y2; - } dirty; };
static void qxl_fb_image_init(struct qxl_fb_image *qxl_fb_image, @@ -82,169 +74,18 @@ static void qxl_fb_image_init(struct qxl_fb_image *qxl_fb_image, } }
-static void qxl_fb_dirty_flush(struct fb_info *info) -{ - struct qxl_fbdev *qfbdev = info->par; - struct qxl_device *qdev = qfbdev->qdev; - struct qxl_fb_image qxl_fb_image; - struct fb_image *image = &qxl_fb_image.fb_image; - unsigned long flags; - u32 x1, x2, y1, y2; - - /* TODO: hard coding 32 bpp */ - int stride = qfbdev->qfb.base.pitches[0]; - - spin_lock_irqsave(&qfbdev->dirty.lock, flags); - - x1 = qfbdev->dirty.x1; - x2 = qfbdev->dirty.x2; - y1 = qfbdev->dirty.y1; - y2 = qfbdev->dirty.y2; - qfbdev->dirty.x1 = 0; - qfbdev->dirty.x2 = 0; - qfbdev->dirty.y1 = 0; - qfbdev->dirty.y2 = 0; - - spin_unlock_irqrestore(&qfbdev->dirty.lock, flags); - - /* - * we are using a shadow draw buffer, at qdev->surface0_shadow - */ - qxl_io_log(qdev, "dirty x[%d, %d], y[%d, %d]", x1, x2, y1, y2); - image->dx = x1; - image->dy = y1; - image->width = x2 - x1 + 1; - image->height = y2 - y1 + 1; - image->fg_color = 0xffffffff; /* unused, just to avoid uninitialized - warnings */ - image->bg_color = 0; - image->depth = 32; /* TODO: take from somewhere? */ - image->cmap.start = 0; - image->cmap.len = 0; - image->cmap.red = NULL; - image->cmap.green = NULL; - image->cmap.blue = NULL; - image->cmap.transp = NULL; - image->data = qfbdev->shadow + (x1 * 4) + (stride * y1); - - qxl_fb_image_init(&qxl_fb_image, qdev, info, NULL); - qxl_draw_opaque_fb(&qxl_fb_image, stride); -} - -static void qxl_dirty_update(struct qxl_fbdev *qfbdev, - int x, int y, int width, int height) -{ - struct qxl_device *qdev = qfbdev->qdev; - unsigned long flags; - int x2, y2; - - x2 = x + width - 1; - y2 = y + height - 1; - - spin_lock_irqsave(&qfbdev->dirty.lock, flags); - - if ((qfbdev->dirty.y2 - qfbdev->dirty.y1) && - (qfbdev->dirty.x2 - qfbdev->dirty.x1)) { - if (qfbdev->dirty.y1 < y) - y = qfbdev->dirty.y1; - if (qfbdev->dirty.y2 > y2) - y2 = qfbdev->dirty.y2; - if (qfbdev->dirty.x1 < x) - x = qfbdev->dirty.x1; - if (qfbdev->dirty.x2 > x2) - x2 = qfbdev->dirty.x2; - } - - qfbdev->dirty.x1 = x; - qfbdev->dirty.x2 = x2; - qfbdev->dirty.y1 = y; - qfbdev->dirty.y2 = y2; - - spin_unlock_irqrestore(&qfbdev->dirty.lock, flags); - - schedule_work(&qdev->fb_work); -} - -static void qxl_deferred_io(struct fb_info *info, - struct list_head *pagelist) -{ - struct qxl_fbdev *qfbdev = info->par; - unsigned long start, end, min, max; - struct page *page; - int y1, y2; - - min = ULONG_MAX; - max = 0; - list_for_each_entry(page, pagelist, lru) { - start = page->index << PAGE_SHIFT; - end = start + PAGE_SIZE - 1; - min = min(min, start); - max = max(max, end); - } - - if (min < max) { - y1 = min / info->fix.line_length; - y2 = (max / info->fix.line_length) + 1; - qxl_dirty_update(qfbdev, 0, y1, info->var.xres, y2 - y1); - } -}; - static struct fb_deferred_io qxl_defio = { .delay = QXL_DIRTY_DELAY, - .deferred_io = qxl_deferred_io, + .deferred_io = drm_fb_helper_deferred_io, };
-static void qxl_fb_fillrect(struct fb_info *info, - const struct fb_fillrect *rect) -{ - struct qxl_fbdev *qfbdev = info->par; - - sys_fillrect(info, rect); - qxl_dirty_update(qfbdev, rect->dx, rect->dy, rect->width, - rect->height); -} - -static void qxl_fb_copyarea(struct fb_info *info, - const struct fb_copyarea *area) -{ - struct qxl_fbdev *qfbdev = info->par; - - sys_copyarea(info, area); - qxl_dirty_update(qfbdev, area->dx, area->dy, area->width, - area->height); -} - -static void qxl_fb_imageblit(struct fb_info *info, - const struct fb_image *image) -{ - struct qxl_fbdev *qfbdev = info->par; - - sys_imageblit(info, image); - qxl_dirty_update(qfbdev, image->dx, image->dy, image->width, - image->height); -} - -static void qxl_fb_work(struct work_struct *work) -{ - struct qxl_device *qdev = container_of(work, struct qxl_device, fb_work); - struct qxl_fbdev *qfbdev = qdev->mode_info.qfbdev; - - qxl_fb_dirty_flush(qfbdev->helper.fbdev); -} - -int qxl_fb_init(struct qxl_device *qdev) -{ - INIT_WORK(&qdev->fb_work, qxl_fb_work); - return 0; -} - static struct fb_ops qxlfb_ops = { .owner = THIS_MODULE, .fb_check_var = drm_fb_helper_check_var, .fb_set_par = drm_fb_helper_set_par, /* TODO: copy vmwgfx */ - .fb_fillrect = qxl_fb_fillrect, - .fb_copyarea = qxl_fb_copyarea, - .fb_imageblit = qxl_fb_imageblit, + .fb_fillrect = drm_fb_helper_sys_fillrect, + .fb_copyarea = drm_fb_helper_sys_copyarea, + .fb_imageblit = drm_fb_helper_sys_imageblit, .fb_pan_display = drm_fb_helper_pan_display, .fb_blank = drm_fb_helper_blank, .fb_setcmap = drm_fb_helper_setcmap, @@ -338,6 +179,53 @@ out_unref: return ret; }
+static int qxlfb_framebuffer_dirty(struct drm_framebuffer *fb, + struct drm_file *file_priv, + unsigned flags, unsigned color, + struct drm_clip_rect *clips, + unsigned num_clips) +{ + struct qxl_device *qdev = fb->dev->dev_private; + struct fb_info *info = qdev->fbdev_info; + struct qxl_fbdev *qfbdev = info->par; + struct qxl_fb_image qxl_fb_image; + struct fb_image *image = &qxl_fb_image.fb_image; + + /* TODO: hard coding 32 bpp */ + int stride = qfbdev->qfb.base.pitches[0]; + + /* + * we are using a shadow draw buffer, at qdev->surface0_shadow + */ + qxl_io_log(qdev, "dirty x[%d, %d], y[%d, %d]", clips->x1, clips->x2, + clips->y1, clips->y2); + image->dx = clips->x1; + image->dy = clips->y1; + image->width = drm_clip_rect_width(clips); + image->height = drm_clip_rect_height(clips); + image->fg_color = 0xffffffff; /* unused, just to avoid uninitialized + warnings */ + image->bg_color = 0; + image->depth = 32; /* TODO: take from somewhere? */ + image->cmap.start = 0; + image->cmap.len = 0; + image->cmap.red = NULL; + image->cmap.green = NULL; + image->cmap.blue = NULL; + image->cmap.transp = NULL; + image->data = qfbdev->shadow + (clips->x1 * 4) + (stride * clips->y1); + + qxl_fb_image_init(&qxl_fb_image, qdev, info, NULL); + qxl_draw_opaque_fb(&qxl_fb_image, stride); + + return 0; +} + +static const struct drm_framebuffer_funcs qxlfb_fb_funcs = { + .destroy = qxl_user_framebuffer_destroy, + .dirty = qxlfb_framebuffer_dirty, +}; + static int qxlfb_create(struct qxl_fbdev *qfbdev, struct drm_fb_helper_surface_size *sizes) { @@ -383,7 +271,8 @@ static int qxlfb_create(struct qxl_fbdev *qfbdev,
info->par = qfbdev;
- qxl_framebuffer_init(qdev->ddev, &qfbdev->qfb, &mode_cmd, gobj); + qxl_framebuffer_init(qdev->ddev, &qfbdev->qfb, &mode_cmd, gobj, + &qxlfb_fb_funcs);
fb = &qfbdev->qfb.base;
@@ -504,7 +393,6 @@ int qxl_fbdev_init(struct qxl_device *qdev) qfbdev->qdev = qdev; qdev->mode_info.qfbdev = qfbdev; spin_lock_init(&qfbdev->delayed_ops_lock); - spin_lock_init(&qfbdev->dirty.lock); INIT_LIST_HEAD(&qfbdev->delayed_ops);
drm_fb_helper_prepare(qdev->ddev, &qfbdev->helper, diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c index b2977a1..2319800 100644 --- a/drivers/gpu/drm/qxl/qxl_kms.c +++ b/drivers/gpu/drm/qxl/qxl_kms.c @@ -261,10 +261,6 @@ static int qxl_device_init(struct qxl_device *qdev, qdev->gc_queue = create_singlethread_workqueue("qxl_gc"); INIT_WORK(&qdev->gc_work, qxl_gc_work);
- r = qxl_fb_init(qdev); - if (r) - return r; - return 0; }