Merge tag 'drm-for-v4.17' of git://people.freedesktop.org/~airlied/linux

Pull drm updates from Dave Airlie:
 "Cannonlake and Vega12 support are probably the two major things. This
  pull lacks nouveau, Ben had some unforseen leave and a few other
  blockers so we'll see how things look or maybe leave it for this merge
  window.

  core:
   - Device links to handle sound/gpu pm dependency
   - Color encoding/range properties
   - Plane clipping into plane check helper
   - Backlight helpers
   - DP TP4 + HBR3 helper support

  amdgpu:
   - Vega12 support
   - Enable DC by default on all supported GPUs
   - Powerplay restructuring and cleanup
   - DC bandwidth calc updates
   - DC backlight on pre-DCE11
   - TTM backing store dropping support
   - SR-IOV fixes
   - Adding "wattman" like functionality
   - DC crc support
   - Improved DC dual-link handling

  amdkfd:
   - GPUVM support for dGPU
   - KFD events for dGPU
   - Enable PCIe atomics for dGPUs
   - HSA process eviction support
   - Live-lock fixes for process eviction
   - VM page table allocation fix for large-bar systems

  panel:
   - Raydium RM68200
   - AUO G104SN02 V2
   - KEO TX31D200VM0BAA
   - ARM Versatile panels

  i915:
   - Cannonlake support enabled
   - AUX-F port support added
   - Icelake base enabling until internal milestone of forcewake support
   - Query uAPI interface (used for GPU topology information currently)
   - Compressed framebuffer support for sprites
   - kmem cache shrinking when GPU is idle
   - Avoid boosting GPU when waited item is being processed already
   - Avoid retraining LSPCON link unnecessarily
   - Decrease request signaling latency
   - Deprecation of I915_SET_COLORKEY_NONE
   - Kerneldoc and compiler warning cleanup for upcoming CI enforcements
   - Full range ycbcr toggling
   - HDCP support

  i915/gvt:
   - Big refactor for shadow ppgtt
   - KBL context save/restore via LRI cmd (Weinan)
   - Properly unmap dma for guest page (Changbin)

  vmwgfx:
   - Lots of various improvements

  etnaviv:
   - Use the drm gpu scheduler
   - prep work for GC7000L support

  vc4:
   - fix alpha blending
   - Expose perf counters to userspace

  pl111:
   - Bandwidth checking/limiting
   - Versatile panel support

  sun4i:
   - A83T HDMI support
   - A80 support
   - YUV plane support
   - H3/H5 HDMI support

  omapdrm:
   - HPD support for DVI connector
   - remove lots of static variables

  msm:
   - DSI updates from 10nm / SDM845
   - fix for race condition with a3xx/a4xx fence completion irq
   - some refactoring/prep work for eventual a6xx support (ie. when we
     have a userspace)
   - a5xx debugfs enhancements
   - some mdp5 fixes/cleanups to prepare for eventually merging
     writeback
   - support (ie. when we have a userspace)

  tegra:
   - mmap() fixes for fbdev devices
   - Overlay plane for hw cursor fix
   - dma-buf cache maintenance support

  mali-dp:
   - YUV->RGB conversion support

  rockchip:
   - rk3399/chromebook fixes and improvements

  rcar-du:
   - LVDS support move to drm bridge
   - DT bindings for R8A77995
   - Driver/DT support for R8A77970

  tilcdc:
   - DRM panel support"

* tag 'drm-for-v4.17' of git://people.freedesktop.org/~airlied/linux: (1646 commits)
  drm/i915: Fix hibernation with ACPI S0 target state
  drm/i915/execlists: Use a locked clear_bit() for synchronisation with interrupt
  drm/i915: Specify which engines to reset following semaphore/event lockups
  drm/i915/dp: Write to SET_POWER dpcd to enable MST hub.
  drm/amdkfd: Use ordered workqueue to restore processes
  drm/amdgpu: Fix acquiring VM on large-BAR systems
  drm/amd/pp: clean header file hwmgr.h
  drm/amd/pp: use mlck_table.count for array loop index limit
  drm: Fix uabi regression by allowing garbage mode->type from userspace
  drm/amdgpu: Add an ATPX quirk for hybrid laptop
  drm/amdgpu: fix spelling mistake: "asssert" -> "assert"
  drm/amd/pp: Add new asic support in pp_psm.c
  drm/amd/pp: Clean up powerplay code on Vega12
  drm/amd/pp: Add smu irq handlers for legacy asics
  drm/amd/pp: Fix set wrong temperature range on smu7
  drm/amdgpu: Don't change preferred domian when fallback GTT v5
  drm/vmwgfx: Bump version patchlevel and date
  drm/vmwgfx: use monotonic event timestamps
  drm/vmwgfx: Unpin the screen object backup buffer when not used
  drm/vmwgfx: Stricter count of legacy surface device resources
  ...

1 files changed, 57 insertions, 68 deletions

diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c
index 515f97997624..ce39390be389 100644
--- a/drivers/gpu/drm/vc4/vc4_plane.c
+++ b/drivers/gpu/drm/vc4/vc4_plane.c
@@ -27,105 +27,50 @@
 #include "vc4_drv.h"
 #include "vc4_regs.h"
 
-enum vc4_scaling_mode {
-	VC4_SCALING_NONE,
-	VC4_SCALING_TPZ,
-	VC4_SCALING_PPF,
-};
-
-struct vc4_plane_state {
-	struct drm_plane_state base;
-	/* System memory copy of the display list for this element, computed
-	 * at atomic_check time.
-	 */
-	u32 *dlist;
-	u32 dlist_size; /* Number of dwords allocated for the display list */
-	u32 dlist_count; /* Number of used dwords in the display list. */
-
-	/* Offset in the dlist to various words, for pageflip or
-	 * cursor updates.
-	 */
-	u32 pos0_offset;
-	u32 pos2_offset;
-	u32 ptr0_offset;
-
-	/* Offset where the plane's dlist was last stored in the
-	 * hardware at vc4_crtc_atomic_flush() time.
-	 */
-	u32 __iomem *hw_dlist;
-
-	/* Clipped coordinates of the plane on the display. */
-	int crtc_x, crtc_y, crtc_w, crtc_h;
-	/* Clipped area being scanned from in the FB. */
-	u32 src_x, src_y;
-
-	u32 src_w[2], src_h[2];
-
-	/* Scaling selection for the RGB/Y plane and the Cb/Cr planes. */
-	enum vc4_scaling_mode x_scaling[2], y_scaling[2];
-	bool is_unity;
-	bool is_yuv;
-
-	/* Offset to start scanning out from the start of the plane's
-	 * BO.
-	 */
-	u32 offsets[3];
-
-	/* Our allocation in LBM for temporary storage during scaling. */
-	struct drm_mm_node lbm;
-};
-
-static inline struct vc4_plane_state *
-to_vc4_plane_state(struct drm_plane_state *state)
-{
-	return (struct vc4_plane_state *)state;
-}
-
 static const struct hvs_format {
 	u32 drm; /* DRM_FORMAT_* */
 	u32 hvs; /* HVS_FORMAT_* */
 	u32 pixel_order;
-	bool has_alpha;
 } hvs_formats[] = {
 	{
 		.drm = DRM_FORMAT_XRGB8888, .hvs = HVS_PIXEL_FORMAT_RGBA8888,
-		.pixel_order = HVS_PIXEL_ORDER_ABGR, .has_alpha = false,
+		.pixel_order = HVS_PIXEL_ORDER_ABGR,
 	},
 	{
 		.drm = DRM_FORMAT_ARGB8888, .hvs = HVS_PIXEL_FORMAT_RGBA8888,
-		.pixel_order = HVS_PIXEL_ORDER_ABGR, .has_alpha = true,
+		.pixel_order = HVS_PIXEL_ORDER_ABGR,
 	},
 	{
 		.drm = DRM_FORMAT_ABGR8888, .hvs = HVS_PIXEL_FORMAT_RGBA8888,
-		.pixel_order = HVS_PIXEL_ORDER_ARGB, .has_alpha = true,
+		.pixel_order = HVS_PIXEL_ORDER_ARGB,
 	},
 	{
 		.drm = DRM_FORMAT_XBGR8888, .hvs = HVS_PIXEL_FORMAT_RGBA8888,
-		.pixel_order = HVS_PIXEL_ORDER_ARGB, .has_alpha = false,
+		.pixel_order = HVS_PIXEL_ORDER_ARGB,
 	},
 	{
 		.drm = DRM_FORMAT_RGB565, .hvs = HVS_PIXEL_FORMAT_RGB565,
-		.pixel_order = HVS_PIXEL_ORDER_XRGB, .has_alpha = false,
+		.pixel_order = HVS_PIXEL_ORDER_XRGB,
 	},
 	{
 		.drm = DRM_FORMAT_BGR565, .hvs = HVS_PIXEL_FORMAT_RGB565,
-		.pixel_order = HVS_PIXEL_ORDER_XBGR, .has_alpha = false,
+		.pixel_order = HVS_PIXEL_ORDER_XBGR,
 	},
 	{
 		.drm = DRM_FORMAT_ARGB1555, .hvs = HVS_PIXEL_FORMAT_RGBA5551,
-		.pixel_order = HVS_PIXEL_ORDER_ABGR, .has_alpha = true,
+		.pixel_order = HVS_PIXEL_ORDER_ABGR,
 	},
 	{
 		.drm = DRM_FORMAT_XRGB1555, .hvs = HVS_PIXEL_FORMAT_RGBA5551,
-		.pixel_order = HVS_PIXEL_ORDER_ABGR, .has_alpha = false,
+		.pixel_order = HVS_PIXEL_ORDER_ABGR,
 	},
 	{
 		.drm = DRM_FORMAT_RGB888, .hvs = HVS_PIXEL_FORMAT_RGB888,
-		.pixel_order = HVS_PIXEL_ORDER_XRGB, .has_alpha = false,
+		.pixel_order = HVS_PIXEL_ORDER_XRGB,
 	},
 	{
 		.drm = DRM_FORMAT_BGR888, .hvs = HVS_PIXEL_FORMAT_RGB888,
-		.pixel_order = HVS_PIXEL_ORDER_XBGR, .has_alpha = false,
+		.pixel_order = HVS_PIXEL_ORDER_XBGR,
 	},
 	{
 		.drm = DRM_FORMAT_YUV422,
@@ -522,6 +467,7 @@ static int vc4_plane_mode_set(struct drm_plane *plane,
 	u32 ctl0_offset = vc4_state->dlist_count;
 	const struct hvs_format *format = vc4_get_hvs_format(fb->format->format);
 	int num_planes = drm_format_num_planes(format->drm);
+	bool covers_screen;
 	u32 scl0, scl1, pitch0;
 	u32 lbm_size, tiling;
 	unsigned long irqflags;
@@ -619,13 +565,14 @@ static int vc4_plane_mode_set(struct drm_plane *plane,
 					      SCALER_POS1_SCL_HEIGHT));
 	}
 
-	/* Position Word 2: Source Image Size, Alpha Mode */
+	/* Position Word 2: Source Image Size, Alpha */
 	vc4_state->pos2_offset = vc4_state->dlist_count;
 	vc4_dlist_write(vc4_state,
-			VC4_SET_FIELD(format->has_alpha ?
+			VC4_SET_FIELD(fb->format->has_alpha ?
 				      SCALER_POS2_ALPHA_MODE_PIPELINE :
 				      SCALER_POS2_ALPHA_MODE_FIXED,
 				      SCALER_POS2_ALPHA_MODE) |
+			(fb->format->has_alpha ? SCALER_POS2_ALPHA_PREMULT : 0) |
 			VC4_SET_FIELD(vc4_state->src_w[0], SCALER_POS2_WIDTH) |
 			VC4_SET_FIELD(vc4_state->src_h[0], SCALER_POS2_HEIGHT));
 
@@ -701,6 +648,16 @@ static int vc4_plane_mode_set(struct drm_plane *plane,
 	vc4_state->dlist[ctl0_offset] |=
 		VC4_SET_FIELD(vc4_state->dlist_count, SCALER_CTL0_SIZE);
 
+	/* crtc_* are already clipped coordinates. */
+	covers_screen = vc4_state->crtc_x == 0 && vc4_state->crtc_y == 0 &&
+			vc4_state->crtc_w == state->crtc->mode.hdisplay &&
+			vc4_state->crtc_h == state->crtc->mode.vdisplay;
+	/* Background fill might be necessary when the plane has per-pixel
+	 * alpha content and blends from the background or does not cover
+	 * the entire screen.
+	 */
+	vc4_state->needs_bg_fill = fb->format->has_alpha || !covers_screen;
+
 	return 0;
 }
 
@@ -907,6 +864,32 @@ out:
 					      ctx);
 }
 
+static bool vc4_format_mod_supported(struct drm_plane *plane,
+				     uint32_t format,
+				     uint64_t modifier)
+{
+	/* Support T_TILING for RGB formats only. */
+	switch (format) {
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_ARGB8888:
+	case DRM_FORMAT_ABGR8888:
+	case DRM_FORMAT_XBGR8888:
+	case DRM_FORMAT_RGB565:
+	case DRM_FORMAT_BGR565:
+	case DRM_FORMAT_ARGB1555:
+	case DRM_FORMAT_XRGB1555:
+		return true;
+	case DRM_FORMAT_YUV422:
+	case DRM_FORMAT_YVU422:
+	case DRM_FORMAT_YUV420:
+	case DRM_FORMAT_YVU420:
+	case DRM_FORMAT_NV12:
+	case DRM_FORMAT_NV16:
+	default:
+		return (modifier == DRM_FORMAT_MOD_LINEAR);
+	}
+}
+
 static const struct drm_plane_funcs vc4_plane_funcs = {
 	.update_plane = vc4_update_plane,
 	.disable_plane = drm_atomic_helper_disable_plane,
@@ -915,6 +898,7 @@ static const struct drm_plane_funcs vc4_plane_funcs = {
 	.reset = vc4_plane_reset,
 	.atomic_duplicate_state = vc4_plane_duplicate_state,
 	.atomic_destroy_state = vc4_plane_destroy_state,
+	.format_mod_supported = vc4_format_mod_supported,
 };
 
 struct drm_plane *vc4_plane_init(struct drm_device *dev,
@@ -926,6 +910,11 @@ struct drm_plane *vc4_plane_init(struct drm_device *dev,
 	u32 num_formats = 0;
 	int ret = 0;
 	unsigned i;
+	static const uint64_t modifiers[] = {
+		DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED,
+		DRM_FORMAT_MOD_LINEAR,
+		DRM_FORMAT_MOD_INVALID
+	};
 
 	vc4_plane = devm_kzalloc(dev->dev, sizeof(*vc4_plane),
 				 GFP_KERNEL);
@@ -946,7 +935,7 @@ struct drm_plane *vc4_plane_init(struct drm_device *dev,
 	ret = drm_universal_plane_init(dev, plane, 0,
 				       &vc4_plane_funcs,
 				       formats, num_formats,
-				       NULL, type, NULL);
+				       modifiers, type, NULL);
 
 	drm_plane_helper_add(plane, &vc4_plane_helper_funcs);