Merge branch 'drm-vmware-fixes' into drm-testing

* drm-vmware-fixes:
  drm/vmwgfx: Remove some leftover debug messages.
  drm/vmwgfx: Print warnings in kernel log about bo pinning that fails.
  drm/vmwgfx: Unpause overlay on update.
  drm/vmwgfx: Some modesetting cleanups and fixes.
  drm/vmwgfx: Don't use SVGA_REG_ENABLE in modesetting code.
  drm/vmwgfx: Remove duplicate member from struct vmw_legacy_display_unit.
  drm/vmwgfx: Reserve first part of VRAM for framebuffer.
  drm/vmwgfx: Support older hardware.
  drm/vmwgfx: Get connector status from detection function.
  drm/vmwgfx: Add kernel throttling support. Bump minor.
  drm/vmwgfx: Make sure to unpin old and pin new framebuffer.
  drm/vmwgfx: Fix single framebuffer detection.
  drm/vmwgfx: Assume larger framebuffer max size.

drivers/gpu/drm/vmwgfx/Makefile

@@ -4,6 +4,6 @@ ccflags-y := -Iinclude/drm
 vmwgfx-y := vmwgfx_execbuf.o vmwgfx_gmr.o vmwgfx_kms.o vmwgfx_drv.o \
 	    vmwgfx_fb.o vmwgfx_ioctl.o vmwgfx_resource.o vmwgfx_buffer.o \
 	    vmwgfx_fifo.o vmwgfx_irq.o vmwgfx_ldu.o vmwgfx_ttm_glue.o \
-	    vmwgfx_overlay.o
+	    vmwgfx_overlay.o vmwgfx_fence.o
 
 obj-$(CONFIG_DRM_VMWGFX) := vmwgfx.o

drivers/gpu/drm/vmwgfx/vmwgfx_drv.c

@@ -318,6 +318,15 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
 		goto out_err3;
 	}
 
+	/* Need mmio memory to check for fifo pitchlock cap. */
+	if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) &&
+	    !(dev_priv->capabilities & SVGA_CAP_PITCHLOCK) &&
+	    !vmw_fifo_have_pitchlock(dev_priv)) {
+		ret = -ENOSYS;
+		DRM_ERROR("Hardware has no pitchlock\n");
+		goto out_err4;
+	}
+
 	dev_priv->tdev = ttm_object_device_init
 	    (dev_priv->mem_global_ref.object, 12);
 
@@ -399,8 +408,6 @@ static int vmw_driver_unload(struct drm_device *dev)
 {
 	struct vmw_private *dev_priv = vmw_priv(dev);
 
-	DRM_INFO(VMWGFX_DRIVER_NAME " unload.\n");
-
 	unregister_pm_notifier(&dev_priv->pm_nb);
 
 	vmw_fb_close(dev_priv);
@@ -546,7 +553,6 @@ static int vmw_master_create(struct drm_device *dev,
 {
 	struct vmw_master *vmaster;
 
-	DRM_INFO("Master create.\n");
 	vmaster = kzalloc(sizeof(*vmaster), GFP_KERNEL);
 	if (unlikely(vmaster == NULL))
 		return -ENOMEM;
@@ -563,7 +569,6 @@ static void vmw_master_destroy(struct drm_device *dev,
 {
 	struct vmw_master *vmaster = vmw_master(master);
 
-	DRM_INFO("Master destroy.\n");
 	master->driver_priv = NULL;
 	kfree(vmaster);
 }
@@ -579,8 +584,6 @@ static int vmw_master_set(struct drm_device *dev,
 	struct vmw_master *vmaster = vmw_master(file_priv->master);
 	int ret = 0;
 
-	DRM_INFO("Master set.\n");
-
 	if (active) {
 		BUG_ON(active != &dev_priv->fbdev_master);
 		ret = ttm_vt_lock(&active->lock, false, vmw_fp->tfile);
@@ -622,8 +625,6 @@ static void vmw_master_drop(struct drm_device *dev,
 	struct vmw_master *vmaster = vmw_master(file_priv->master);
 	int ret;
 
-	DRM_INFO("Master drop.\n");
-
 	/**
 	 * Make sure the master doesn't disappear while we have
 	 * it locked.

drivers/gpu/drm/vmwgfx/vmwgfx_drv.h

@@ -41,7 +41,7 @@
 
 #define VMWGFX_DRIVER_DATE "20100209"
 #define VMWGFX_DRIVER_MAJOR 1
-#define VMWGFX_DRIVER_MINOR 0
+#define VMWGFX_DRIVER_MINOR 1
 #define VMWGFX_DRIVER_PATCHLEVEL 0
 #define VMWGFX_FILE_PAGE_OFFSET 0x00100000
 #define VMWGFX_FIFO_STATIC_SIZE (1024*1024)
@@ -102,6 +102,13 @@ struct vmw_surface {
 	struct vmw_cursor_snooper snooper;
 };
 
+struct vmw_fence_queue {
+	struct list_head head;
+	struct timespec lag;
+	struct timespec lag_time;
+	spinlock_t lock;
+};
+
 struct vmw_fifo_state {
 	unsigned long reserved_size;
 	__le32 *dynamic_buffer;
@@ -115,6 +122,7 @@ struct vmw_fifo_state {
 	uint32_t capabilities;
 	struct mutex fifo_mutex;
 	struct rw_semaphore rwsem;
+	struct vmw_fence_queue fence_queue;
 };
 
 struct vmw_relocation {
@@ -179,6 +187,7 @@ struct vmw_private {
 	uint32_t vga_red_mask;
 	uint32_t vga_blue_mask;
 	uint32_t vga_green_mask;
+	uint32_t vga_pitchlock;
 
 	/*
 	 * Framebuffer info.
@@ -393,6 +402,7 @@ extern int vmw_fifo_send_fence(struct vmw_private *dev_priv,
 extern void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason);
 extern int vmw_fifo_mmap(struct file *filp, struct vm_area_struct *vma);
 extern bool vmw_fifo_have_3d(struct vmw_private *dev_priv);
+extern bool vmw_fifo_have_pitchlock(struct vmw_private *dev_priv);
 
 /**
  * TTM glue - vmwgfx_ttm_glue.c
@@ -441,6 +451,23 @@ extern int vmw_fallback_wait(struct vmw_private *dev_priv,
 			     uint32_t sequence,
 			     bool interruptible,
 			     unsigned long timeout);
+extern void vmw_update_sequence(struct vmw_private *dev_priv,
+				struct vmw_fifo_state *fifo_state);
+
+
+/**
+ * Rudimentary fence objects currently used only for throttling -
+ * vmwgfx_fence.c
+ */
+
+extern void vmw_fence_queue_init(struct vmw_fence_queue *queue);
+extern void vmw_fence_queue_takedown(struct vmw_fence_queue *queue);
+extern int vmw_fence_push(struct vmw_fence_queue *queue,
+			  uint32_t sequence);
+extern int vmw_fence_pull(struct vmw_fence_queue *queue,
+			  uint32_t signaled_sequence);
+extern int vmw_wait_lag(struct vmw_private *dev_priv,
+			struct vmw_fence_queue *queue, uint32_t us);
 
 /**
  * Kernel framebuffer - vmwgfx_fb.c
@@ -466,6 +493,9 @@ void vmw_kms_cursor_snoop(struct vmw_surface *srf,
 			  struct ttm_object_file *tfile,
 			  struct ttm_buffer_object *bo,
 			  SVGA3dCmdHeader *header);
+void vmw_kms_write_svga(struct vmw_private *vmw_priv,
+			unsigned width, unsigned height, unsigned pitch,
+			unsigned bbp, unsigned depth);
 
 /**
  * Overlay control - vmwgfx_overlay.c

drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c

@@ -669,6 +669,15 @@ int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
 		goto out_err;
 
 	vmw_apply_relocations(sw_context);
+
+	if (arg->throttle_us) {
+		ret = vmw_wait_lag(dev_priv, &dev_priv->fifo.fence_queue,
+				   arg->throttle_us);
+
+		if (unlikely(ret != 0))
+			goto out_err;
+	}
+
 	vmw_fifo_commit(dev_priv, arg->command_size);
 
 	ret = vmw_fifo_send_fence(dev_priv, &sequence);

drivers/gpu/drm/vmwgfx/vmwgfx_fb.c

@@ -132,16 +132,14 @@ static int vmw_fb_check_var(struct fb_var_screeninfo *var,
 		return -EINVAL;
 	}
 
-	/* without multimon its hard to resize */
-	if (!(vmw_priv->capabilities & SVGA_CAP_MULTIMON) &&
-	    (var->xres != par->max_width ||
-	     var->yres != par->max_height)) {
-		DRM_ERROR("Tried to resize, but we don't have multimon\n");
+	if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) &&
+	    (var->xoffset != 0 || var->yoffset != 0)) {
+		DRM_ERROR("Can not handle panning without display topology\n");
 		return -EINVAL;
 	}
 
-	if (var->xres > par->max_width ||
-	    var->yres > par->max_height) {
+	if ((var->xoffset + var->xres) > par->max_width ||
+	    (var->yoffset + var->yres) > par->max_height) {
 		DRM_ERROR("Requested geom can not fit in framebuffer\n");
 		return -EINVAL;
 	}
@@ -154,8 +152,7 @@ static int vmw_fb_set_par(struct fb_info *info)
 	struct vmw_fb_par *par = info->par;
 	struct vmw_private *vmw_priv = par->vmw_priv;
 
-	if (vmw_priv->capabilities & SVGA_CAP_MULTIMON) {
-		vmw_write(vmw_priv, SVGA_REG_NUM_GUEST_DISPLAYS, 1);
+	if (vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) {
 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, 0);
 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, true);
 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, 0);
@@ -164,32 +161,31 @@ static int vmw_fb_set_par(struct fb_info *info)
 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, 0);
 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
 
-		vmw_write(vmw_priv, SVGA_REG_ENABLE, 1);
-		vmw_write(vmw_priv, SVGA_REG_WIDTH, par->max_width);
-		vmw_write(vmw_priv, SVGA_REG_HEIGHT, par->max_height);
-		vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, par->bpp);
-		vmw_write(vmw_priv, SVGA_REG_DEPTH, par->depth);
-		vmw_write(vmw_priv, SVGA_REG_RED_MASK, 0x00ff0000);
-		vmw_write(vmw_priv, SVGA_REG_GREEN_MASK, 0x0000ff00);
-		vmw_write(vmw_priv, SVGA_REG_BLUE_MASK, 0x000000ff);
+		vmw_kms_write_svga(vmw_priv, info->var.xres, info->var.yres,
+				   info->fix.line_length,
+				   par->bpp, par->depth);
 
 		/* TODO check if pitch and offset changes */
-
-		vmw_write(vmw_priv, SVGA_REG_NUM_GUEST_DISPLAYS, 1);
 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, 0);
 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, true);
 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, info->var.xoffset);
 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, info->var.yoffset);
 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, info->var.xres);
 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, info->var.yres);
 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
+		vmw_write(vmw_priv, SVGA_REG_NUM_GUEST_DISPLAYS, 1);
 	} else {
-		vmw_write(vmw_priv, SVGA_REG_WIDTH, info->var.xres);
-		vmw_write(vmw_priv, SVGA_REG_HEIGHT, info->var.yres);
+		vmw_kms_write_svga(vmw_priv, info->var.xres, info->var.yres,
+				   info->fix.line_length,
+				   par->bpp, par->depth);
 
-		/* TODO check if pitch and offset changes */
 	}
 
+	/* This is really helpful since if this fails the user
+	 * can probably not see anything on the screen.
+	 */
+	WARN_ON(vmw_read(vmw_priv, SVGA_REG_FB_OFFSET) != 0);
+
 	return 0;
 }
 
@@ -416,48 +412,23 @@ int vmw_fb_init(struct vmw_private *vmw_priv)
 	unsigned fb_bbp, fb_depth, fb_offset, fb_pitch, fb_size;
 	int ret;
 
+	/* XXX These shouldn't be hardcoded. */
 	initial_width = 800;
 	initial_height = 600;
 
 	fb_bbp = 32;
 	fb_depth = 24;
 
-	if (vmw_priv->capabilities & SVGA_CAP_MULTIMON) {
-		fb_width = min(vmw_priv->fb_max_width, (unsigned)2048);
-		fb_height = min(vmw_priv->fb_max_height, (unsigned)2048);
-	} else {
-		fb_width = min(vmw_priv->fb_max_width, initial_width);
-		fb_height = min(vmw_priv->fb_max_height, initial_height);
-	}
+	/* XXX As shouldn't these be as well. */
+	fb_width = min(vmw_priv->fb_max_width, (unsigned)2048);
+	fb_height = min(vmw_priv->fb_max_height, (unsigned)2048);
 
 	initial_width = min(fb_width, initial_width);
 	initial_height = min(fb_height, initial_height);
 
-	vmw_write(vmw_priv, SVGA_REG_WIDTH, fb_width);
-	vmw_write(vmw_priv, SVGA_REG_HEIGHT, fb_height);
-	vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, fb_bbp);
-	vmw_write(vmw_priv, SVGA_REG_DEPTH, fb_depth);
-	vmw_write(vmw_priv, SVGA_REG_RED_MASK, 0x00ff0000);
-	vmw_write(vmw_priv, SVGA_REG_GREEN_MASK, 0x0000ff00);
-	vmw_write(vmw_priv, SVGA_REG_BLUE_MASK, 0x000000ff);
-
-	fb_size = vmw_read(vmw_priv, SVGA_REG_FB_SIZE);
+	fb_pitch = fb_width * fb_bbp / 8;
+	fb_size = fb_pitch * fb_height;
 	fb_offset = vmw_read(vmw_priv, SVGA_REG_FB_OFFSET);
-	fb_pitch = vmw_read(vmw_priv, SVGA_REG_BYTES_PER_LINE);
-
-	DRM_DEBUG("width  %u\n", vmw_read(vmw_priv, SVGA_REG_MAX_WIDTH));
-	DRM_DEBUG("height %u\n", vmw_read(vmw_priv, SVGA_REG_MAX_HEIGHT));
-	DRM_DEBUG("width  %u\n", vmw_read(vmw_priv, SVGA_REG_WIDTH));
-	DRM_DEBUG("height %u\n", vmw_read(vmw_priv, SVGA_REG_HEIGHT));
-	DRM_DEBUG("bpp    %u\n", vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL));
-	DRM_DEBUG("depth  %u\n", vmw_read(vmw_priv, SVGA_REG_DEPTH));
-	DRM_DEBUG("bpl    %u\n", vmw_read(vmw_priv, SVGA_REG_BYTES_PER_LINE));
-	DRM_DEBUG("r mask %08x\n", vmw_read(vmw_priv, SVGA_REG_RED_MASK));
-	DRM_DEBUG("g mask %08x\n", vmw_read(vmw_priv, SVGA_REG_GREEN_MASK));
-	DRM_DEBUG("b mask %08x\n", vmw_read(vmw_priv, SVGA_REG_BLUE_MASK));
-	DRM_DEBUG("fb_offset 0x%08x\n", fb_offset);
-	DRM_DEBUG("fb_pitch  %u\n", fb_pitch);
-	DRM_DEBUG("fb_size   %u kiB\n", fb_size / 1024);
 
 	info = framebuffer_alloc(sizeof(*par), device);
 	if (!info)
@@ -659,6 +630,10 @@ int vmw_dmabuf_to_start_of_vram(struct vmw_private *vmw_priv,
 		goto err_unlock;
 
 	ret = ttm_bo_validate(bo, &ne_placement, false, false, false);
+
+	/* Could probably bug on */
+	WARN_ON(bo->offset != 0);
+
 	ttm_bo_unreserve(bo);
 err_unlock:
 	ttm_write_unlock(&vmw_priv->active_master->lock);