vmwgfx: Major KMS refactoring / cleanup in preparation of screen targets
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
index 9e8eb36..807fc87 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
@@ -1,6 +1,6 @@
/**************************************************************************
*
- * Copyright © 2011 VMware, Inc., Palo Alto, CA., USA
+ * Copyright © 2011-2014 VMware, Inc., Palo Alto, CA., USA
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
@@ -57,7 +57,7 @@
static void vmw_sou_destroy(struct vmw_screen_object_unit *sou)
{
- vmw_display_unit_cleanup(&sou->base);
+ vmw_du_cleanup(&sou->base);
kfree(sou);
}
@@ -72,7 +72,7 @@
}
static void vmw_sou_del_active(struct vmw_private *vmw_priv,
- struct vmw_screen_object_unit *sou)
+ struct vmw_screen_object_unit *sou)
{
struct vmw_screen_object_display *ld = vmw_priv->sou_priv;
@@ -84,8 +84,8 @@
}
static void vmw_sou_add_active(struct vmw_private *vmw_priv,
- struct vmw_screen_object_unit *sou,
- struct vmw_framebuffer *vfb)
+ struct vmw_screen_object_unit *sou,
+ struct vmw_framebuffer *vfb)
{
struct vmw_screen_object_display *ld = vmw_priv->sou_priv;
@@ -274,13 +274,13 @@
dev_priv = vmw_priv(crtc->dev);
if (set->num_connectors > 1) {
- DRM_ERROR("to many connectors\n");
+ DRM_ERROR("Too many connectors\n");
return -EINVAL;
}
if (set->num_connectors == 1 &&
set->connectors[0] != &sou->base.connector) {
- DRM_ERROR("connector doesn't match %p %p\n",
+ DRM_ERROR("Connector doesn't match %p %p\n",
set->connectors[0], &sou->base.connector);
return -EINVAL;
}
@@ -391,6 +391,250 @@
return 0;
}
+/**
+ * Returns if this unit can be page flipped.
+ * Must be called with the mode_config mutex held.
+ */
+static bool vmw_sou_screen_object_flippable(struct vmw_private *dev_priv,
+ struct drm_crtc *crtc)
+{
+ struct vmw_screen_object_unit *sou = vmw_crtc_to_sou(crtc);
+
+ if (!sou->base.is_implicit)
+ return true;
+
+ if (dev_priv->sou_priv->num_implicit != 1)
+ return false;
+
+ return true;
+}
+
+/**
+ * Update the implicit fb to the current fb of this crtc.
+ * Must be called with the mode_config mutex held.
+ */
+void vmw_sou_update_implicit_fb(struct vmw_private *dev_priv,
+ struct drm_crtc *crtc)
+{
+ struct vmw_screen_object_unit *sou = vmw_crtc_to_sou(crtc);
+
+ BUG_ON(!sou->base.is_implicit);
+
+ dev_priv->sou_priv->implicit_fb =
+ vmw_framebuffer_to_vfb(sou->base.crtc.primary->fb);
+}
+
+static int vmw_sou_crtc_page_flip(struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ struct drm_pending_vblank_event *event,
+ uint32_t flags)
+{
+ struct vmw_private *dev_priv = vmw_priv(crtc->dev);
+ struct drm_framebuffer *old_fb = crtc->primary->fb;
+ struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(fb);
+ struct drm_file *file_priv = event->base.file_priv;
+ struct vmw_fence_obj *fence = NULL;
+ struct drm_clip_rect clips;
+ int ret;
+
+ /* require ScreenObject support for page flipping */
+ if (!dev_priv->sou_priv)
+ return -ENOSYS;
+
+ if (!vmw_sou_screen_object_flippable(dev_priv, crtc))
+ return -EINVAL;
+
+ crtc->primary->fb = fb;
+
+ /* do a full screen dirty update */
+ clips.x1 = clips.y1 = 0;
+ clips.x2 = fb->width;
+ clips.y2 = fb->height;
+
+ if (vfb->dmabuf)
+ ret = vmw_kms_sou_do_dmabuf_dirty(file_priv, dev_priv, vfb,
+ 0, 0, &clips, 1, 1, &fence);
+ else
+ ret = vmw_kms_sou_do_surface_dirty(dev_priv, file_priv, vfb,
+ 0, 0, &clips, 1, 1, &fence);
+
+
+ if (ret != 0)
+ goto out_no_fence;
+ if (!fence) {
+ ret = -EINVAL;
+ goto out_no_fence;
+ }
+
+ ret = vmw_event_fence_action_queue(file_priv, fence,
+ &event->base,
+ &event->event.tv_sec,
+ &event->event.tv_usec,
+ true);
+
+ /*
+ * No need to hold on to this now. The only cleanup
+ * we need to do if we fail is unref the fence.
+ */
+ vmw_fence_obj_unreference(&fence);
+
+ if (vmw_crtc_to_du(crtc)->is_implicit)
+ vmw_sou_update_implicit_fb(dev_priv, crtc);
+
+ return ret;
+
+out_no_fence:
+ crtc->primary->fb = old_fb;
+ return ret;
+}
+
+int vmw_kms_sou_do_surface_dirty(struct vmw_private *dev_priv,
+ struct drm_file *file_priv,
+ struct vmw_framebuffer *framebuffer,
+ unsigned flags, unsigned color,
+ struct drm_clip_rect *clips,
+ unsigned num_clips, int inc,
+ struct vmw_fence_obj **out_fence)
+{
+ struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
+ struct drm_clip_rect *clips_ptr;
+ struct drm_clip_rect *tmp;
+ struct drm_crtc *crtc;
+ size_t fifo_size;
+ int i, num_units;
+ int ret = 0; /* silence warning */
+ int left, right, top, bottom;
+
+ struct {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdBlitSurfaceToScreen body;
+ } *cmd;
+ SVGASignedRect *blits;
+
+ num_units = 0;
+ list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list,
+ head) {
+ if (crtc->primary->fb != &framebuffer->base)
+ continue;
+ units[num_units++] = vmw_crtc_to_du(crtc);
+ }
+
+ BUG_ON(!clips || !num_clips);
+
+ tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL);
+ if (unlikely(tmp == NULL)) {
+ DRM_ERROR("Temporary cliprect memory alloc failed.\n");
+ return -ENOMEM;
+ }
+
+ fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
+ cmd = kzalloc(fifo_size, GFP_KERNEL);
+ if (unlikely(cmd == NULL)) {
+ DRM_ERROR("Temporary fifo memory alloc failed.\n");
+ ret = -ENOMEM;
+ goto out_free_tmp;
+ }
+
+ /* setup blits pointer */
+ blits = (SVGASignedRect *)&cmd[1];
+
+ /* initial clip region */
+ left = clips->x1;
+ right = clips->x2;
+ top = clips->y1;
+ bottom = clips->y2;
+
+ /* skip the first clip rect */
+ for (i = 1, clips_ptr = clips + inc;
+ i < num_clips; i++, clips_ptr += inc) {
+ left = min_t(int, left, (int)clips_ptr->x1);
+ right = max_t(int, right, (int)clips_ptr->x2);
+ top = min_t(int, top, (int)clips_ptr->y1);
+ bottom = max_t(int, bottom, (int)clips_ptr->y2);
+ }
+
+ /* only need to do this once */
+ cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
+ cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
+
+ cmd->body.srcRect.left = left;
+ cmd->body.srcRect.right = right;
+ cmd->body.srcRect.top = top;
+ cmd->body.srcRect.bottom = bottom;
+
+ clips_ptr = clips;
+ for (i = 0; i < num_clips; i++, clips_ptr += inc) {
+ tmp[i].x1 = clips_ptr->x1 - left;
+ tmp[i].x2 = clips_ptr->x2 - left;
+ tmp[i].y1 = clips_ptr->y1 - top;
+ tmp[i].y2 = clips_ptr->y2 - top;
+ }
+
+ /* do per unit writing, reuse fifo for each */
+ for (i = 0; i < num_units; i++) {
+ struct vmw_display_unit *unit = units[i];
+ struct vmw_clip_rect clip;
+ int num;
+
+ clip.x1 = left - unit->crtc.x;
+ clip.y1 = top - unit->crtc.y;
+ clip.x2 = right - unit->crtc.x;
+ clip.y2 = bottom - unit->crtc.y;
+
+ /* skip any crtcs that misses the clip region */
+ if (clip.x1 >= unit->crtc.mode.hdisplay ||
+ clip.y1 >= unit->crtc.mode.vdisplay ||
+ clip.x2 <= 0 || clip.y2 <= 0)
+ continue;
+
+ /*
+ * In order for the clip rects to be correctly scaled
+ * the src and dest rects needs to be the same size.
+ */
+ cmd->body.destRect.left = clip.x1;
+ cmd->body.destRect.right = clip.x2;
+ cmd->body.destRect.top = clip.y1;
+ cmd->body.destRect.bottom = clip.y2;
+
+ /* create a clip rect of the crtc in dest coords */
+ clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
+ clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
+ clip.x1 = 0 - clip.x1;
+ clip.y1 = 0 - clip.y1;
+
+ /* need to reset sid as it is changed by execbuf */
+ cmd->body.srcImage.sid = cpu_to_le32(framebuffer->user_handle);
+ cmd->body.destScreenId = unit->unit;
+
+ /* clip and write blits to cmd stream */
+ vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
+
+ /* if no cliprects hit skip this */
+ if (num == 0)
+ continue;
+
+ /* only return the last fence */
+ if (out_fence && *out_fence)
+ vmw_fence_obj_unreference(out_fence);
+
+ /* recalculate package length */
+ fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
+ cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
+ ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
+ fifo_size, 0, NULL, out_fence);
+
+ if (unlikely(ret != 0))
+ break;
+ }
+
+
+ kfree(cmd);
+out_free_tmp:
+ kfree(tmp);
+
+ return ret;
+}
+
static struct drm_crtc_funcs vmw_screen_object_crtc_funcs = {
.save = vmw_du_crtc_save,
.restore = vmw_du_crtc_restore,
@@ -399,7 +643,7 @@
.gamma_set = vmw_du_crtc_gamma_set,
.destroy = vmw_sou_crtc_destroy,
.set_config = vmw_sou_crtc_set_config,
- .page_flip = vmw_du_page_flip,
+ .page_flip = vmw_sou_crtc_page_flip,
};
/*
@@ -424,7 +668,7 @@
vmw_sou_destroy(vmw_connector_to_sou(connector));
}
-static struct drm_connector_funcs vmw_legacy_connector_funcs = {
+static struct drm_connector_funcs vmw_sou_connector_funcs = {
.dpms = vmw_du_connector_dpms,
.save = vmw_du_connector_save,
.restore = vmw_du_connector_restore,
@@ -459,7 +703,7 @@
sou->base.pref_mode = NULL;
sou->base.is_implicit = true;
- drm_connector_init(dev, connector, &vmw_legacy_connector_funcs,
+ drm_connector_init(dev, connector, &vmw_sou_connector_funcs,
DRM_MODE_CONNECTOR_VIRTUAL);
connector->status = vmw_du_connector_detect(connector, true);
@@ -482,7 +726,7 @@
return 0;
}
-int vmw_kms_init_screen_object_display(struct vmw_private *dev_priv)
+int vmw_kms_sou_init_display(struct vmw_private *dev_priv)
{
struct drm_device *dev = dev_priv->dev;
int i, ret;
@@ -517,7 +761,9 @@
for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i)
vmw_sou_init(dev_priv, i);
- DRM_INFO("Screen objects system initialized\n");
+ dev_priv->active_display_unit = vmw_du_screen_object;
+
+ DRM_INFO("Screen Objects Display Unit initialized\n");
return 0;
@@ -530,7 +776,7 @@
return ret;
}
-int vmw_kms_close_screen_object_display(struct vmw_private *dev_priv)
+int vmw_kms_sou_close_display(struct vmw_private *dev_priv)
{
struct drm_device *dev = dev_priv->dev;
@@ -544,35 +790,143 @@
return 0;
}
-/**
- * Returns if this unit can be page flipped.
- * Must be called with the mode_config mutex held.
- */
-bool vmw_kms_screen_object_flippable(struct vmw_private *dev_priv,
- struct drm_crtc *crtc)
+static int do_dmabuf_define_gmrfb(struct drm_file *file_priv,
+ struct vmw_private *dev_priv,
+ struct vmw_framebuffer *framebuffer)
{
- struct vmw_screen_object_unit *sou = vmw_crtc_to_sou(crtc);
+ int depth = framebuffer->base.depth;
+ size_t fifo_size;
+ int ret;
- if (!sou->base.is_implicit)
- return true;
+ struct {
+ uint32_t header;
+ SVGAFifoCmdDefineGMRFB body;
+ } *cmd;
- if (dev_priv->sou_priv->num_implicit != 1)
- return false;
+ /* Emulate RGBA support, contrary to svga_reg.h this is not
+ * supported by hosts. This is only a problem if we are reading
+ * this value later and expecting what we uploaded back.
+ */
+ if (depth == 32)
+ depth = 24;
- return true;
+ fifo_size = sizeof(*cmd);
+ cmd = kmalloc(fifo_size, GFP_KERNEL);
+ if (unlikely(cmd == NULL)) {
+ DRM_ERROR("Failed to allocate temporary cmd buffer.\n");
+ return -ENOMEM;
+ }
+
+ memset(cmd, 0, fifo_size);
+ cmd->header = SVGA_CMD_DEFINE_GMRFB;
+ cmd->body.format.bitsPerPixel = framebuffer->base.bits_per_pixel;
+ cmd->body.format.colorDepth = depth;
+ cmd->body.format.reserved = 0;
+ cmd->body.bytesPerLine = framebuffer->base.pitches[0];
+ cmd->body.ptr.gmrId = framebuffer->user_handle;
+ cmd->body.ptr.offset = 0;
+
+ ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
+ fifo_size, 0, NULL, NULL);
+
+ kfree(cmd);
+
+ return ret;
}
-/**
- * Update the implicit fb to the current fb of this crtc.
- * Must be called with the mode_config mutex held.
- */
-void vmw_kms_screen_object_update_implicit_fb(struct vmw_private *dev_priv,
- struct drm_crtc *crtc)
+int vmw_kms_sou_do_dmabuf_dirty(struct drm_file *file_priv,
+ struct vmw_private *dev_priv,
+ struct vmw_framebuffer *framebuffer,
+ unsigned flags, unsigned color,
+ struct drm_clip_rect *clips,
+ unsigned num_clips, int increment,
+ struct vmw_fence_obj **out_fence)
{
- struct vmw_screen_object_unit *sou = vmw_crtc_to_sou(crtc);
+ struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
+ struct drm_clip_rect *clips_ptr;
+ int i, k, num_units, ret;
+ struct drm_crtc *crtc;
+ size_t fifo_size;
- BUG_ON(!sou->base.is_implicit);
+ struct {
+ uint32_t header;
+ SVGAFifoCmdBlitGMRFBToScreen body;
+ } *blits;
- dev_priv->sou_priv->implicit_fb =
- vmw_framebuffer_to_vfb(sou->base.crtc.primary->fb);
+ ret = do_dmabuf_define_gmrfb(file_priv, dev_priv, framebuffer);
+ if (unlikely(ret != 0))
+ return ret; /* define_gmrfb prints warnings */
+
+ fifo_size = sizeof(*blits) * num_clips;
+ blits = kmalloc(fifo_size, GFP_KERNEL);
+ if (unlikely(blits == NULL)) {
+ DRM_ERROR("Failed to allocate temporary cmd buffer.\n");
+ return -ENOMEM;
+ }
+
+ num_units = 0;
+ list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
+ if (crtc->primary->fb != &framebuffer->base)
+ continue;
+ units[num_units++] = vmw_crtc_to_du(crtc);
+ }
+
+ for (k = 0; k < num_units; k++) {
+ struct vmw_display_unit *unit = units[k];
+ int hit_num = 0;
+
+ clips_ptr = clips;
+ for (i = 0; i < num_clips; i++, clips_ptr += increment) {
+ int clip_x1 = clips_ptr->x1 - unit->crtc.x;
+ int clip_y1 = clips_ptr->y1 - unit->crtc.y;
+ int clip_x2 = clips_ptr->x2 - unit->crtc.x;
+ int clip_y2 = clips_ptr->y2 - unit->crtc.y;
+ int move_x, move_y;
+
+ /* skip any crtcs that misses the clip region */
+ if (clip_x1 >= unit->crtc.mode.hdisplay ||
+ clip_y1 >= unit->crtc.mode.vdisplay ||
+ clip_x2 <= 0 || clip_y2 <= 0)
+ continue;
+
+ /* clip size to crtc size */
+ clip_x2 = min_t(int, clip_x2, unit->crtc.mode.hdisplay);
+ clip_y2 = min_t(int, clip_y2, unit->crtc.mode.vdisplay);
+
+ /* translate both src and dest to bring clip into screen */
+ move_x = min_t(int, clip_x1, 0);
+ move_y = min_t(int, clip_y1, 0);
+
+ /* actual translate done here */
+ blits[hit_num].header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
+ blits[hit_num].body.destScreenId = unit->unit;
+ blits[hit_num].body.srcOrigin.x = clips_ptr->x1 - move_x;
+ blits[hit_num].body.srcOrigin.y = clips_ptr->y1 - move_y;
+ blits[hit_num].body.destRect.left = clip_x1 - move_x;
+ blits[hit_num].body.destRect.top = clip_y1 - move_y;
+ blits[hit_num].body.destRect.right = clip_x2;
+ blits[hit_num].body.destRect.bottom = clip_y2;
+ hit_num++;
+ }
+
+ /* no clips hit the crtc */
+ if (hit_num == 0)
+ continue;
+
+ /* only return the last fence */
+ if (out_fence && *out_fence)
+ vmw_fence_obj_unreference(out_fence);
+
+ fifo_size = sizeof(*blits) * hit_num;
+ ret = vmw_execbuf_process(file_priv, dev_priv, NULL, blits,
+ fifo_size, 0, NULL, out_fence);
+
+ if (unlikely(ret != 0))
+ break;
+ }
+
+ kfree(blits);
+
+ return ret;
}
+