7 files changed, 19 insertions, 80 deletions

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 134069f36482..39f1db4acda4 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -4451,6 +4451,7 @@ drm_reset_display_info(struct drm_connector *connector)
         info->max_tmds_clock = 0;
         info->dvi_dual = false;
         info->has_hdmi_infoframe = false;
+        memset(&info->hdmi, 0, sizeof(info->hdmi));
 
         info->non_desktop = 0;
 }
@@ -4462,17 +4463,11 @@ u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edi
 
         u32 quirks = edid_get_quirks(edid);
 
+        drm_reset_display_info(connector);
+
         info->width_mm = edid->width_cm * 10;
         info->height_mm = edid->height_cm * 10;
 
-        /* driver figures it out in this case */
-        info->bpc = 0;
-        info->color_formats = 0;
-        info->cea_rev = 0;
-        info->max_tmds_clock = 0;
-        info->dvi_dual = false;
-        info->has_hdmi_infoframe = false;
-
         info->non_desktop = !!(quirks & EDID_QUIRK_NON_DESKTOP);
 
         DRM_DEBUG_KMS("non_desktop set to %d\n", info->non_desktop);
diff --git a/drivers/gpu/drm/qxl/qxl_cmd.c b/drivers/gpu/drm/qxl/qxl_cmd.c
index c0fb52c6d4ca..01665b98c57e 100644
--- a/drivers/gpu/drm/qxl/qxl_cmd.c
+++ b/drivers/gpu/drm/qxl/qxl_cmd.c
@@ -179,10 +179,9 @@ qxl_push_command_ring_release(struct qxl_device *qdev, struct qxl_release *relea
                               uint32_t type, bool interruptible)
 {
         struct qxl_command cmd;
-        struct qxl_bo_list *entry = list_first_entry(&release->bos, struct qxl_bo_list, tv.head);
 
         cmd.type = type;
-        cmd.data = qxl_bo_physical_address(qdev, to_qxl_bo(entry->tv.bo), release->release_offset);
+        cmd.data = qxl_bo_physical_address(qdev, release->release_bo, release->release_offset);
 
         return qxl_ring_push(qdev->command_ring, &cmd, interruptible);
 }
@@ -192,10 +191,9 @@ qxl_push_cursor_ring_release(struct qxl_device *qdev, struct qxl_release *releas
                              uint32_t type, bool interruptible)
 {
         struct qxl_command cmd;
-        struct qxl_bo_list *entry = list_first_entry(&release->bos, struct qxl_bo_list, tv.head);
 
         cmd.type = type;
-        cmd.data = qxl_bo_physical_address(qdev, to_qxl_bo(entry->tv.bo), release->release_offset);
+        cmd.data = qxl_bo_physical_address(qdev, release->release_bo, release->release_offset);
 
         return qxl_ring_push(qdev->cursor_ring, &cmd, interruptible);
 }
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 00a1a66b052a..864b456080c4 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -167,6 +167,7 @@ struct qxl_release {
 
         int id;
         int type;
+        struct qxl_bo *release_bo;
         uint32_t release_offset;
         uint32_t surface_release_id;
         struct ww_acquire_ctx ticket;
diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c
index e238a1a2eca1..6cc9f3367fa0 100644
--- a/drivers/gpu/drm/qxl/qxl_ioctl.c
+++ b/drivers/gpu/drm/qxl/qxl_ioctl.c
@@ -182,9 +182,9 @@ static int qxl_process_single_command(struct qxl_device *qdev,
                 goto out_free_reloc;
 
         /* TODO copy slow path code from i915 */
-        fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_SIZE));
+        fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_MASK));
         unwritten = __copy_from_user_inatomic_nocache
-                (fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE),
+                (fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_MASK),
                  u64_to_user_ptr(cmd->command), cmd->command_size);
 
         {
diff --git a/drivers/gpu/drm/qxl/qxl_release.c b/drivers/gpu/drm/qxl/qxl_release.c
index 5d84a66fed36..7cb214577275 100644
--- a/drivers/gpu/drm/qxl/qxl_release.c
+++ b/drivers/gpu/drm/qxl/qxl_release.c
@@ -173,6 +173,7 @@ qxl_release_free_list(struct qxl_release *release)
                 list_del(&entry->tv.head);
                 kfree(entry);
         }
+        release->release_bo = NULL;
 }
 
 void
@@ -296,7 +297,6 @@ int qxl_alloc_surface_release_reserved(struct qxl_device *qdev,
 {
         if (surface_cmd_type == QXL_SURFACE_CMD_DESTROY && create_rel) {
                 int idr_ret;
-                struct qxl_bo_list *entry = list_first_entry(&create_rel->bos, struct qxl_bo_list, tv.head);
                 struct qxl_bo *bo;
                 union qxl_release_info *info;
 
@@ -304,8 +304,9 @@ int qxl_alloc_surface_release_reserved(struct qxl_device *qdev,
                 idr_ret = qxl_release_alloc(qdev, QXL_RELEASE_SURFACE_CMD, release);
                 if (idr_ret < 0)
                         return idr_ret;
-                bo = to_qxl_bo(entry->tv.bo);
+                bo = create_rel->release_bo;
 
+                (*release)->release_bo = bo;
                 (*release)->release_offset = create_rel->release_offset + 64;
 
                 qxl_release_list_add(*release, bo);
@@ -365,6 +366,7 @@ int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size,
 
         bo = qxl_bo_ref(qdev->current_release_bo[cur_idx]);
 
+        (*release)->release_bo = bo;
         (*release)->release_offset = qdev->current_release_bo_offset[cur_idx] * release_size_per_bo[cur_idx];
         qdev->current_release_bo_offset[cur_idx]++;
 
@@ -408,13 +410,12 @@ union qxl_release_info *qxl_release_map(struct qxl_device *qdev,
 {
         void *ptr;
         union qxl_release_info *info;
-        struct qxl_bo_list *entry = list_first_entry(&release->bos, struct qxl_bo_list, tv.head);
-        struct qxl_bo *bo = to_qxl_bo(entry->tv.bo);
+        struct qxl_bo *bo = release->release_bo;
 
-        ptr = qxl_bo_kmap_atomic_page(qdev, bo, release->release_offset & PAGE_SIZE);
+        ptr = qxl_bo_kmap_atomic_page(qdev, bo, release->release_offset & PAGE_MASK);
         if (!ptr)
                 return NULL;
-        info = ptr + (release->release_offset & ~PAGE_SIZE);
+        info = ptr + (release->release_offset & ~PAGE_MASK);
         return info;
 }
 
@@ -422,11 +423,10 @@ void qxl_release_unmap(struct qxl_device *qdev,
                        struct qxl_release *release,
                        union qxl_release_info *info)
 {
-        struct qxl_bo_list *entry = list_first_entry(&release->bos, struct qxl_bo_list, tv.head);
-        struct qxl_bo *bo = to_qxl_bo(entry->tv.bo);
+        struct qxl_bo *bo = release->release_bo;
         void *ptr;
 
-        ptr = ((void *)info) - (release->release_offset & ~PAGE_SIZE);
+        ptr = ((void *)info) - (release->release_offset & ~PAGE_MASK);
         qxl_bo_kunmap_atomic_page(qdev, bo, ptr);
 }
 
diff --git a/drivers/gpu/drm/sun4i/sun4i_lvds.c b/drivers/gpu/drm/sun4i/sun4i_lvds.c
index bffff4c9fbf5..be3f14d7746d 100644
--- a/drivers/gpu/drm/sun4i/sun4i_lvds.c
+++ b/drivers/gpu/drm/sun4i/sun4i_lvds.c
@@ -94,64 +94,9 @@ static void sun4i_lvds_encoder_disable(struct drm_encoder *encoder)
         }
 }
 
-static enum drm_mode_status sun4i_lvds_encoder_mode_valid(struct drm_encoder *crtc,
-                                                          const struct drm_display_mode *mode)
-{
-        struct sun4i_lvds *lvds = drm_encoder_to_sun4i_lvds(crtc);
-        struct sun4i_tcon *tcon = lvds->tcon;
-        u32 hsync = mode->hsync_end - mode->hsync_start;
-        u32 vsync = mode->vsync_end - mode->vsync_start;
-        unsigned long rate = mode->clock * 1000;
-        long rounded_rate;
-
-        DRM_DEBUG_DRIVER("Validating modes...\n");
-
-        if (hsync < 1)
-                return MODE_HSYNC_NARROW;
-
-        if (hsync > 0x3ff)
-                return MODE_HSYNC_WIDE;
-
-        if ((mode->hdisplay < 1) || (mode->htotal < 1))
-                return MODE_H_ILLEGAL;
-
-        if ((mode->hdisplay > 0x7ff) || (mode->htotal > 0xfff))
-                return MODE_BAD_HVALUE;
-
-        DRM_DEBUG_DRIVER("Horizontal parameters OK\n");
-
-        if (vsync < 1)
-                return MODE_VSYNC_NARROW;
-
-        if (vsync > 0x3ff)
-                return MODE_VSYNC_WIDE;
-
-        if ((mode->vdisplay < 1) || (mode->vtotal < 1))
-                return MODE_V_ILLEGAL;
-
-        if ((mode->vdisplay > 0x7ff) || (mode->vtotal > 0xfff))
-                return MODE_BAD_VVALUE;
-
-        DRM_DEBUG_DRIVER("Vertical parameters OK\n");
-
-        tcon->dclk_min_div = 7;
-        tcon->dclk_max_div = 7;
-        rounded_rate = clk_round_rate(tcon->dclk, rate);
-        if (rounded_rate < rate)
-                return MODE_CLOCK_LOW;
-
-        if (rounded_rate > rate)
-                return MODE_CLOCK_HIGH;
-
-        DRM_DEBUG_DRIVER("Clock rate OK\n");
-
-        return MODE_OK;
-}
-
 static const struct drm_encoder_helper_funcs sun4i_lvds_enc_helper_funcs = {
         .disable        = sun4i_lvds_encoder_disable,
         .enable         = sun4i_lvds_encoder_enable,
-        .mode_valid     = sun4i_lvds_encoder_mode_valid,
 };
 
 static const struct drm_encoder_funcs sun4i_lvds_enc_funcs = {
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 48e4f1df6e5d..020070d483d3 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -293,7 +293,7 @@ retry:
         ret = virtqueue_add_sgs(vq, sgs, outcnt, incnt, vbuf, GFP_ATOMIC);
         if (ret == -ENOSPC) {
                 spin_unlock(&vgdev->ctrlq.qlock);
-                wait_event(vgdev->ctrlq.ack_queue, vq->num_free);
+                wait_event(vgdev->ctrlq.ack_queue, vq->num_free >= outcnt + incnt);
                 spin_lock(&vgdev->ctrlq.qlock);
                 goto retry;
         } else {
@@ -368,7 +368,7 @@ retry:
         ret = virtqueue_add_sgs(vq, sgs, outcnt, 0, vbuf, GFP_ATOMIC);
         if (ret == -ENOSPC) {
                 spin_unlock(&vgdev->cursorq.qlock);
-                wait_event(vgdev->cursorq.ack_queue, vq->num_free);
+                wait_event(vgdev->cursorq.ack_queue, vq->num_free >= outcnt);
                 spin_lock(&vgdev->cursorq.qlock);
                 goto retry;
         } else {