Merge tag 'drm-next-2020-01-30' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Davbe Airlie:
 "This is the main pull request for graphics for 5.6. Usual selection of
  changes all over.

  I've got one outstanding vmwgfx pull that touches mm so kept it
  separate until after all of this lands. I'll try and get it to you
  soon after this, but it might be early next week (nothing wrong with
  code, just my schedule is messy)

  This also hits a lot of fbdev drivers with some cleanups.

  Other notables:
   - vulkan timeline semaphore support added to syncobjs
   - nouveau turing secureboot/graphics support
   - Displayport MST display stream compression support

  Detailed summary:

  uapi:
   - dma-buf heaps added (and fixed)
   - command line add support for panel oreientation
   - command line allow overriding penguin count

  drm:
   - mipi dsi definition updates
   - lockdep annotations for dma_resv
   - remove dma-buf kmap/kunmap support
   - constify fb_ops in all fbdev drivers
   - MST fix for daisy chained hotplug-
   - CTA-861-G modes with VIC >= 193 added
   - fix drm_panel_of_backlight export
   - LVDS decoder support
   - more device based logging support
   - scanline alighment for dumb buffers
   - MST DSC helpers

  scheduler:
   - documentation fixes
   - job distribution improvements

  panel:
   - Logic PD type 28 panel support
   - Jimax8729d MIPI-DSI
   - igenic JZ4770
   - generic DSI devicetree bindings
   - sony acx424AKP panel
   - Leadtek LTK500HD1829
   - xinpeng XPP055C272
   - AUO B116XAK01
   - GiantPlus GPM940B0
   - BOE NV140FHM-N49
   - Satoz SAT050AT40H12R2
   - Sharp LS020B1DD01D panels.

  ttm:
   - use blocking WW lock

  i915:
   - hw/uapi state separation
   - Lock annotation improvements
   - selftest improvements
   - ICL/TGL DSI VDSC support
   - VBT parsing improvments
   - Display refactoring
   - DSI updates + fixes
   - HDCP 2.2 for CFL
   - CML PCI ID fixes
   - GLK+ fbc fix
   - PSR fixes
   - GEN/GT refactor improvments
   - DP MST fixes
   - switch context id alloc to xarray
   - workaround updates
   - LMEM debugfs support
   - tiled monitor fixes
   - ICL+ clock gating programming removed
   - DP MST disable sequence fixed
   - LMEM discontiguous object maps
   - prefaulting for discontiguous objects
   - use LMEM for dumb buffers if possible
   - add LMEM mmap support

  amdgpu:
   - enable sync object timelines for vulkan
   - MST atomic routines
   - enable MST DSC support
   - add DMCUB display microengine support
   - DC OEM i2c support
   - Renoir DC fixes
   - Initial HDCP 2.x support
   - BACO support for Arcturus
   - Use BACO for runtime PM power save
   - gfxoff on navi10
   - gfx10 golden updates and fixes
   - DCN support on POWER
   - GFXOFF for raven1 refresh
   - MM engine idle handlers cleanup
   - 10bpc EDP panel fixes
   - renoir watermark fixes
   - SR-IOV fixes
   - Arcturus VCN fixes
   - GDDR6 training fixes
   - freesync fixes
   - Pollock support

  amdkfd:
   - unify more codepath with amdgpu
   - use KIQ to setup HIQ rather than MMIO

  radeon:
   - fix vma fault handler race
   - PPC DMA fix
   - register check fixes for r100/r200

  nouveau:
   - mmap_sem vs dma_resv fix
   - rewrite the ACR secure boot code for Turing
   - TU10x graphics engine support (TU11x pending)
   - Page kind mapping for turing
   - 10-bit LUT support
   - GP10B Tegra fixes
   - HD audio regression fix

  hisilicon/hibmc:
   - use generic fbdev code and helpers

  rockchip:
   - dsi/px30 support

  virtio:
   - fb damage support
   - static some functions

  vc4:
   - use dma_resv lock wrappers

  msm:
   - use dma_resv lock wrappers
   - sc7180 display + DSI support
   - a618 support
   - UBWC support improvements

  vmwgfx:
   - updates + new logging uapi

  exynos:
   - enable/disable callback cleanups

  etnaviv:
   - use dma_resv lock wrappers

  atmel-hlcdc:
   - clock fixes

  mediatek:
   - cmdq support
   - non-smooth cursor fixes
   - ctm property support

  sun4i:
   - suspend support
   - A64 mipi dsi support

  rcar-du:
   - Color management module support
   - LVDS encoder dual-link support
   - R8A77980 support

  analogic:
   - add support for an6345

  ast:
   - atomic modeset support
   - primary plane garbage fix

  arcgpu:
   - fixes for fourcc handling

  tegra:
   - minor fixes and improvments

  mcde:
   - vblank support

  meson:
   - OSD1 plane AFBC commit

  gma500:
   - add pageflip support
   - reomve global drm_dev

  komeda:
   - tweak debugfs output
   - d32 support
   - runtime PM suppotr

  udl:
   - use generic shmem helpers
   - cleanup and fixes"

* tag 'drm-next-2020-01-30' of git://anongit.freedesktop.org/drm/drm: (1998 commits)
  drm/nouveau/fb/gp102-: allow module to load even when scrubber binary is missing
  drm/nouveau/acr: return error when registering LSF if ACR not supported
  drm/nouveau/disp/gv100-: not all channel types support reporting error codes
  drm/nouveau/disp/nv50-: prevent oops when no channel method map provided
  drm/nouveau: support synchronous pushbuf submission
  drm/nouveau: signal pending fences when channel has been killed
  drm/nouveau: reject attempts to submit to dead channels
  drm/nouveau: zero vma pointer even if we only unreference it rather than free
  drm/nouveau: Add HD-audio component notifier support
  drm/nouveau: fix build error without CONFIG_IOMMU_API
  drm/nouveau/kms/nv04: remove set but not used variable 'width'
  drm/nouveau/kms/nv50: remove set but not unused variable 'nv_connector'
  drm/nouveau/mmu: fix comptag memory leak
  drm/nouveau/gr/gp10b: Use gp100_grctx and gp100_gr_zbc
  drm/nouveau/pmu/gm20b,gp10b: Fix Falcon bootstrapping
  drm/exynos: Rename Exynos to lowercase
  drm/exynos: change callback names
  drm/mst: Don't do atomic checks over disabled managers
  drm/amdgpu: add the lost mutex_init back
  drm/amd/display: skip opp blank or unblank if test pattern enabled
  ...

1 files changed, 128 insertions, 127 deletions

diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 88232698d7a0..10336b144c72 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -233,7 +233,7 @@ struct drm_display_mode *drm_cvt_mode(struct drm_device *dev, int hdisplay,
 		/* 3) Nominal HSync width (% of line period) - default 8 */
 #define CVT_HSYNC_PERCENTAGE	8
 		unsigned int hblank_percentage;
-		int vsyncandback_porch, vback_porch, hblank;
+		int vsyncandback_porch, __maybe_unused vback_porch, hblank;
 
 		/* estimated the horizontal period */
 		tmp1 = HV_FACTOR * 1000000  -
@@ -386,9 +386,10 @@ drm_gtf_mode_complex(struct drm_device *dev, int hdisplay, int vdisplay,
 	int top_margin, bottom_margin;
 	int interlace;
 	unsigned int hfreq_est;
-	int vsync_plus_bp, vback_porch;
-	unsigned int vtotal_lines, vfieldrate_est, hperiod;
-	unsigned int vfield_rate, vframe_rate;
+	int vsync_plus_bp, __maybe_unused vback_porch;
+	unsigned int vtotal_lines, __maybe_unused vfieldrate_est;
+	unsigned int __maybe_unused hperiod;
+	unsigned int vfield_rate, __maybe_unused vframe_rate;
 	int left_margin, right_margin;
 	unsigned int total_active_pixels, ideal_duty_cycle;
 	unsigned int hblank, total_pixels, pixel_freq;
@@ -1568,33 +1569,76 @@ static int drm_mode_parse_cmdline_res_mode(const char *str, unsigned int length,
 	return 0;
 }
 
-static int drm_mode_parse_cmdline_options(char *str, size_t len,
+static int drm_mode_parse_cmdline_int(const char *delim, unsigned int *int_ret)
+{
+	const char *value;
+	char *endp;
+
+	/*
+	 * delim must point to the '=', otherwise it is a syntax error and
+	 * if delim points to the terminating zero, then delim + 1 wil point
+	 * past the end of the string.
+	 */
+	if (*delim != '=')
+		return -EINVAL;
+
+	value = delim + 1;
+	*int_ret = simple_strtol(value, &endp, 10);
+
+	/* Make sure we have parsed something */
+	if (endp == value)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int drm_mode_parse_panel_orientation(const char *delim,
+					    struct drm_cmdline_mode *mode)
+{
+	const char *value;
+
+	if (*delim != '=')
+		return -EINVAL;
+
+	value = delim + 1;
+	delim = strchr(value, ',');
+	if (!delim)
+		delim = value + strlen(value);
+
+	if (!strncmp(value, "normal", delim - value))
+		mode->panel_orientation = DRM_MODE_PANEL_ORIENTATION_NORMAL;
+	else if (!strncmp(value, "upside_down", delim - value))
+		mode->panel_orientation = DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP;
+	else if (!strncmp(value, "left_side_up", delim - value))
+		mode->panel_orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP;
+	else if (!strncmp(value, "right_side_up", delim - value))
+		mode->panel_orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP;
+	else
+		return -EINVAL;
+
+	return 0;
+}
+
+static int drm_mode_parse_cmdline_options(const char *str,
+					  bool freestanding,
 					  const struct drm_connector *connector,
 					  struct drm_cmdline_mode *mode)
 {
-	unsigned int rotation = 0;
-	char *sep = str;
+	unsigned int deg, margin, rotation = 0;
+	const char *delim, *option, *sep;
 
-	while ((sep = strchr(sep, ','))) {
-		char *delim, *option;
-
-		option = sep + 1;
+	option = str;
+	do {
 		delim = strchr(option, '=');
 		if (!delim) {
 			delim = strchr(option, ',');
 
 			if (!delim)
-				delim = str + len;
+				delim = option + strlen(option);
 		}
 
 		if (!strncmp(option, "rotate", delim - option)) {
-			const char *value = delim + 1;
-			unsigned int deg;
-
-			deg = simple_strtol(value, &sep, 10);
-
-			/* Make sure we have parsed something */
-			if (sep == value)
+			if (drm_mode_parse_cmdline_int(delim, &deg))
 				return -EINVAL;
 
 			switch (deg) {
@@ -1619,58 +1663,40 @@ static int drm_mode_parse_cmdline_options(char *str, size_t len,
 			}
 		} else if (!strncmp(option, "reflect_x", delim - option)) {
 			rotation |= DRM_MODE_REFLECT_X;
-			sep = delim;
 		} else if (!strncmp(option, "reflect_y", delim - option)) {
 			rotation |= DRM_MODE_REFLECT_Y;
-			sep = delim;
 		} else if (!strncmp(option, "margin_right", delim - option)) {
-			const char *value = delim + 1;
-			unsigned int margin;
-
-			margin = simple_strtol(value, &sep, 10);
-
-			/* Make sure we have parsed something */
-			if (sep == value)
+			if (drm_mode_parse_cmdline_int(delim, &margin))
 				return -EINVAL;
 
 			mode->tv_margins.right = margin;
 		} else if (!strncmp(option, "margin_left", delim - option)) {
-			const char *value = delim + 1;
-			unsigned int margin;
-
-			margin = simple_strtol(value, &sep, 10);
-
-			/* Make sure we have parsed something */
-			if (sep == value)
+			if (drm_mode_parse_cmdline_int(delim, &margin))
 				return -EINVAL;
 
 			mode->tv_margins.left = margin;
 		} else if (!strncmp(option, "margin_top", delim - option)) {
-			const char *value = delim + 1;
-			unsigned int margin;
-
-			margin = simple_strtol(value, &sep, 10);
-
-			/* Make sure we have parsed something */
-			if (sep == value)
+			if (drm_mode_parse_cmdline_int(delim, &margin))
 				return -EINVAL;
 
 			mode->tv_margins.top = margin;
 		} else if (!strncmp(option, "margin_bottom", delim - option)) {
-			const char *value = delim + 1;
-			unsigned int margin;
-
-			margin = simple_strtol(value, &sep, 10);
-
-			/* Make sure we have parsed something */
-			if (sep == value)
+			if (drm_mode_parse_cmdline_int(delim, &margin))
 				return -EINVAL;
 
 			mode->tv_margins.bottom = margin;
+		} else if (!strncmp(option, "panel_orientation", delim - option)) {
+			if (drm_mode_parse_panel_orientation(delim, mode))
+				return -EINVAL;
 		} else {
 			return -EINVAL;
 		}
-	}
+		sep = strchr(delim, ',');
+		option = sep + 1;
+	} while (sep);
+
+	if (rotation && freestanding)
+		return -EINVAL;
 
 	mode->rotation_reflection = rotation;
 
@@ -1682,17 +1708,6 @@ static const char * const drm_named_modes_whitelist[] = {
 	"PAL",
 };
 
-static bool drm_named_mode_is_in_whitelist(const char *mode, unsigned int size)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(drm_named_modes_whitelist); i++)
-		if (!strncmp(mode, drm_named_modes_whitelist[i], size))
-			return true;
-
-	return false;
-}
-
 /**
  * drm_mode_parse_command_line_for_connector - parse command line modeline for connector
  * @mode_option: optional per connector mode option
@@ -1723,72 +1738,30 @@ bool drm_mode_parse_command_line_for_connector(const char *mode_option,
 					       struct drm_cmdline_mode *mode)
 {
 	const char *name;
-	bool named_mode = false, parse_extras = false;
+	bool freestanding = false, parse_extras = false;
 	unsigned int bpp_off = 0, refresh_off = 0, options_off = 0;
 	unsigned int mode_end = 0;
-	char *bpp_ptr = NULL, *refresh_ptr = NULL, *extra_ptr = NULL;
-	char *options_ptr = NULL;
+	const char *bpp_ptr = NULL, *refresh_ptr = NULL, *extra_ptr = NULL;
+	const char *options_ptr = NULL;
 	char *bpp_end_ptr = NULL, *refresh_end_ptr = NULL;
-	int ret;
+	int i, len, ret;
 
-#ifdef CONFIG_FB
-	if (!mode_option)
-		mode_option = fb_mode_option;
-#endif
+	memset(mode, 0, sizeof(*mode));
+	mode->panel_orientation = DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
 
-	if (!mode_option) {
-		mode->specified = false;
+	if (!mode_option)
 		return false;
-	}
 
 	name = mode_option;
 
-	/*
-	 * This is a bit convoluted. To differentiate between the
-	 * named modes and poorly formatted resolutions, we need a
-	 * bunch of things:
-	 *   - We need to make sure that the first character (which
-	 *     would be our resolution in X) is a digit.
-	 *   - If not, then it's either a named mode or a force on/off.
-	 *     To distinguish between the two, we need to run the
-	 *     extra parsing function, and if not, then we consider it
-	 *     a named mode.
-	 *
-	 * If this isn't enough, we should add more heuristics here,
-	 * and matching unit-tests.
-	 */
-	if (!isdigit(name[0]) && name[0] != 'x') {
-		unsigned int namelen = strlen(name);
-
-		/*
-		 * Only the force on/off options can be in that case,
-		 * and they all take a single character.
-		 */
-		if (namelen == 1) {
-			ret = drm_mode_parse_cmdline_extra(name, namelen, true,
-							   connector, mode);
-			if (!ret)
-				return true;
-		}
-
-		named_mode = true;
-	}
-
 	/* Try to locate the bpp and refresh specifiers, if any */
 	bpp_ptr = strchr(name, '-');
-	if (bpp_ptr) {
+	if (bpp_ptr)
 		bpp_off = bpp_ptr - name;
-		mode->bpp_specified = true;
-	}
 
 	refresh_ptr = strchr(name, '@');
-	if (refresh_ptr) {
-		if (named_mode)
-			return false;
-
+	if (refresh_ptr)
 		refresh_off = refresh_ptr - name;
-		mode->refresh_specified = true;
-	}
 
 	/* Locate the start of named options */
 	options_ptr = strchr(name, ',');
@@ -1802,33 +1775,58 @@ bool drm_mode_parse_command_line_for_connector(const char *mode_option,
 		mode_end = refresh_off;
 	} else if (options_ptr) {
 		mode_end = options_off;
+		parse_extras = true;
 	} else {
 		mode_end = strlen(name);
 		parse_extras = true;
 	}
 
-	if (named_mode) {
-		if (mode_end + 1 > DRM_DISPLAY_MODE_LEN)
-			return false;
+	/* First check for a named mode */
+	for (i = 0; i < ARRAY_SIZE(drm_named_modes_whitelist); i++) {
+		ret = str_has_prefix(name, drm_named_modes_whitelist[i]);
+		if (ret == mode_end) {
+			if (refresh_ptr)
+				return false; /* named + refresh is invalid */
 
-		if (!drm_named_mode_is_in_whitelist(name, mode_end))
-			return false;
+			strcpy(mode->name, drm_named_modes_whitelist[i]);
+			mode->specified = true;
+			break;
+		}
+	}
 
-		strscpy(mode->name, name, mode_end + 1);
-	} else {
+	/* No named mode? Check for a normal mode argument, e.g. 1024x768 */
+	if (!mode->specified && isdigit(name[0])) {
 		ret = drm_mode_parse_cmdline_res_mode(name, mode_end,
 						      parse_extras,
 						      connector,
 						      mode);
 		if (ret)
 			return false;
+
+		mode->specified = true;
+	}
+
+	/* No mode? Check for freestanding extras and/or options */
+	if (!mode->specified) {
+		unsigned int len = strlen(mode_option);
+
+		if (bpp_ptr || refresh_ptr)
+			return false; /* syntax error */
+
+		if (len == 1 || (len >= 2 && mode_option[1] == ','))
+			extra_ptr = mode_option;
+		else
+			options_ptr = mode_option - 1;
+
+		freestanding = true;
 	}
-	mode->specified = true;
 
 	if (bpp_ptr) {
 		ret = drm_mode_parse_cmdline_bpp(bpp_ptr, &bpp_end_ptr, mode);
 		if (ret)
 			return false;
+
+		mode->bpp_specified = true;
 	}
 
 	if (refresh_ptr) {
@@ -1836,6 +1834,8 @@ bool drm_mode_parse_command_line_for_connector(const char *mode_option,
 						     &refresh_end_ptr, mode);
 		if (ret)
 			return false;
+
+		mode->refresh_specified = true;
 	}
 
 	/*
@@ -1849,20 +1849,21 @@ bool drm_mode_parse_command_line_for_connector(const char *mode_option,
 	else if (refresh_ptr)
 		extra_ptr = refresh_end_ptr;
 
-	if (extra_ptr &&
-	    extra_ptr != options_ptr) {
-		int len = strlen(name) - (extra_ptr - name);
+	if (extra_ptr) {
+		if (options_ptr)
+			len = options_ptr - extra_ptr;
+		else
+			len = strlen(extra_ptr);
 
-		ret = drm_mode_parse_cmdline_extra(extra_ptr, len, false,
+		ret = drm_mode_parse_cmdline_extra(extra_ptr, len, freestanding,
 						   connector, mode);
 		if (ret)
 			return false;
 	}
 
 	if (options_ptr) {
-		int len = strlen(name) - (options_ptr - name);
-
-		ret = drm_mode_parse_cmdline_options(options_ptr, len,
+		ret = drm_mode_parse_cmdline_options(options_ptr + 1,
+						     freestanding,
 						     connector, mode);
 		if (ret)
 			return false;