Merge tag 'drm-next-2021-04-28' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "The usual lots of work all over the place.

  i915 has gotten some Alderlake work and prelim DG1 code, along with a
  major locking rework over the GEM code, and brings back the property
  of timing out long running jobs using a watchdog. amdgpu has some
  Alderbran support (new GPU), freesync HDMI support along with a lot
  other fixes.

  Outside of the drm, there is a new printf specifier added which should
  have all the correct acks/sobs:

   - printk fourcc modifier support added %p4cc

  Summary:

  core:
   - drm_crtc_commit_wait
   - atomic plane state helpers reworked for full state
   - dma-buf heaps API rework
   - edid: rework and improvements for displayid

  dp-mst:
   - better topology logging

  bridge:
   - Chipone ICN6211
   - Lontium LT8912B
   - anx7625 regulator support

  panel:
   - fix lt9611 4k panels handling

  simple-kms:
   - add plane state helpers

  ttm:
   - debugfs support
   - removal of unused sysfs
   - ignore signaled moved fences
   - ioremap buffer according to mem caching

  i915:
   - Alderlake S enablement
   - Conversion to dma_resv_locking
   - Bring back watchdog timeout support
   - legacy ioctl cleanups
   - add GEM TDDO and RFC process
   - DG1 LMEM preparation work
   - intel_display.c refactoring
   - Gen9/TGL PCH combination support
   - eDP MSO Support
   - multiple PSR instance support
   - Link training debug updates
   - Disable PSR2 support on JSL/EHL
   - DDR5/LPDDR5 support for bw calcs
   - LSPCON limited to gen9/10 platforms
   - HSW/BDW async flip/VTd corruption workaround
   - SAGV watermark fixes
   - SNB hard hang on ring resume fix
   - Limit imported dma-buf size
   - move to use new tasklet API
   - refactor KBL/TGL/ADL-S display/gt steppings
   - refactoring legacy DP/HDMI, FB plane code out

  amdgpu:
   - uapi: add ioctl to query video capabilities
   - Iniital AMD Freesync HDMI support
   - Initial Adebaran support
   - 10bpc dithering improvements
   - DCN secure display support
   - Drop legacy IO BAR requirements
   - PCIE/S0ix/RAS/Prime/Reset fixes
   - Display ASSR support
   - SMU gfx busy queues for RV/PCO
   - Initial LTTPR display work

  amdkfd:
   - MMU notifier fixes
   - APU fixes

  radeon:
   - debugfs cleanps
   - fw error handling ifix
   - Flexible array cleanups

  msm:
   - big DSI phy/pll cleanup
   - sc7280 initial support
   - commong bandwidth scaling path
   - shrinker locking contention fixes
   - unpin/swap support for GEM objcets

  ast:
   - cursor plane handling reworked

  tegra:
   - don't register DP AUX channels before connectors

  zynqmp:
   - fix OOB struct padding memset

  gma500:
   - drop ttm and medfield support

  exynos:
   - request_irq cleanup function

  mediatek:
   - fine tune line time for EOTp
   - MT8192 dpi support
   - atomic crtc config updates
   - don't support HDMI connector creation

  mxsdb:
   - imx8mm support

  panfrost:
   - MMU IRQ handling rework

  qxl:
   - locking fixes
   - resource deallocation changes

  sun4i:
   - add alpha properties to UI/VI layers

  vc4:
   - RPi4 CEC support

  vmwgfx:
   - doc cleanups

  arc:
   - moved to drm/tiny"

* tag 'drm-next-2021-04-28' of git://anongit.freedesktop.org/drm/drm: (1390 commits)
  drm/ttm: Don't count pages in SG BOs against pages_limit
  drm/ttm: fix return value check
  drm/bridge: lt8912b: fix incorrect handling of of_* return values
  drm: bridge: fix LONTIUM use of mipi_dsi_() functions
  drm: bridge: fix ANX7625 use of mipi_dsi_() functions
  drm/amdgpu: page retire over debugfs mechanism
  drm/radeon: Fix a missing check bug in radeon_dp_mst_detect()
  drm/amd/display: Fix the Wunused-function warning
  drm/radeon/r600: Fix variables that are not used after assignment
  drm/amdgpu/smu7: fix CAC setting on TOPAZ
  drm/amd/display: Update DCN302 SR Exit Latency
  drm/amdgpu: enable ras eeprom on aldebaran
  drm/amdgpu: RAS harvest on driver load
  drm/amdgpu: add ras aldebaran ras eeprom driver
  drm/amd/pm: increase time out value when sending msg to SMU
  drm/amdgpu: add DMUB outbox event IRQ source define/complete/debug flag
  drm/amd/pm: add the callback to get vbios bootup values for vangogh
  drm/radeon: Fix size overflow
  drm/amdgpu: Fix size overflow
  drm/amdgpu: move mmhub ras_func init to ip specific file
  ...

8 files changed, 36 insertions, 74 deletions

diff --git a/drivers/video/fbdev/amba-clcd.c b/drivers/video/fbdev/amba-clcd.c
index 33595cc4778e..9ec969e136bf 100644
--- a/drivers/video/fbdev/amba-clcd.c
+++ b/drivers/video/fbdev/amba-clcd.c
@@ -35,19 +35,6 @@
 /* This is limited to 16 characters when displayed by X startup */
 static const char *clcd_name = "CLCD FB";
 
-/*
- * Unfortunately, the enable/disable functions may be called either from
- * process or IRQ context, and we _need_ to delay.  This is _not_ good.
- */
-static inline void clcdfb_sleep(unsigned int ms)
-{
-	if (in_atomic()) {
-		mdelay(ms);
-	} else {
-		msleep(ms);
-	}
-}
-
 static inline void clcdfb_set_start(struct clcd_fb *fb)
 {
 	unsigned long ustart = fb->fb.fix.smem_start;
@@ -77,7 +64,7 @@ static void clcdfb_disable(struct clcd_fb *fb)
 		val &= ~CNTL_LCDPWR;
 		writel(val, fb->regs + fb->off_cntl);
 
-		clcdfb_sleep(20);
+		msleep(20);
 	}
 	if (val & CNTL_LCDEN) {
 		val &= ~CNTL_LCDEN;
@@ -109,7 +96,7 @@ static void clcdfb_enable(struct clcd_fb *fb, u32 cntl)
 	cntl |= CNTL_LCDEN;
 	writel(cntl, fb->regs + fb->off_cntl);
 
-	clcdfb_sleep(20);
+	msleep(20);
 
 	/*
 	 * and now apply power.
diff --git a/drivers/video/fbdev/core/fb_defio.c b/drivers/video/fbdev/core/fb_defio.c
index a591d291b231..b292887a2481 100644
--- a/drivers/video/fbdev/core/fb_defio.c
+++ b/drivers/video/fbdev/core/fb_defio.c
@@ -52,13 +52,6 @@ static vm_fault_t fb_deferred_io_fault(struct vm_fault *vmf)
 		return VM_FAULT_SIGBUS;
 
 	get_page(page);
-
-	if (vmf->vma->vm_file)
-		page->mapping = vmf->vma->vm_file->f_mapping;
-	else
-		printk(KERN_ERR "no mapping available\n");
-
-	BUG_ON(!page->mapping);
 	page->index = vmf->pgoff;
 
 	vmf->page = page;
@@ -151,17 +144,6 @@ static const struct vm_operations_struct fb_deferred_io_vm_ops = {
 	.page_mkwrite	= fb_deferred_io_mkwrite,
 };
 
-static int fb_deferred_io_set_page_dirty(struct page *page)
-{
-	if (!PageDirty(page))
-		SetPageDirty(page);
-	return 0;
-}
-
-static const struct address_space_operations fb_deferred_io_aops = {
-	.set_page_dirty = fb_deferred_io_set_page_dirty,
-};
-
 int fb_deferred_io_mmap(struct fb_info *info, struct vm_area_struct *vma)
 {
 	vma->vm_ops = &fb_deferred_io_vm_ops;
@@ -212,29 +194,12 @@ void fb_deferred_io_init(struct fb_info *info)
 }
 EXPORT_SYMBOL_GPL(fb_deferred_io_init);
 
-void fb_deferred_io_open(struct fb_info *info,
-			 struct inode *inode,
-			 struct file *file)
-{
-	file->f_mapping->a_ops = &fb_deferred_io_aops;
-}
-EXPORT_SYMBOL_GPL(fb_deferred_io_open);
-
 void fb_deferred_io_cleanup(struct fb_info *info)
 {
 	struct fb_deferred_io *fbdefio = info->fbdefio;
-	struct page *page;
-	int i;
 
 	BUG_ON(!fbdefio);
 	cancel_delayed_work_sync(&info->deferred_work);
-
-	/* clear out the mapping that we setup */
-	for (i = 0 ; i < info->fix.smem_len; i += PAGE_SIZE) {
-		page = fb_deferred_io_page(info, i);
-		page->mapping = NULL;
-	}
-
 	mutex_destroy(&fbdefio->lock);
 }
 EXPORT_SYMBOL_GPL(fb_deferred_io_cleanup);
diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 06f5805de2de..372b52a2befa 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1415,10 +1415,6 @@ __releases(&info->lock)
 		if (res)
 			module_put(info->fbops->owner);
 	}
-#ifdef CONFIG_FB_DEFERRED_IO
-	if (info->fbdefio)
-		fb_deferred_io_open(info, inode, file);
-#endif
 out:
 	unlock_fb_info(info);
 	if (res)
diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c
index b80ba3d2a9b8..f58a545b3bf3 100644
--- a/drivers/video/fbdev/efifb.c
+++ b/drivers/video/fbdev/efifb.c
@@ -16,6 +16,7 @@
 #include <linux/platform_device.h>
 #include <linux/printk.h>
 #include <linux/screen_info.h>
+#include <linux/pm_runtime.h>
 #include <video/vga.h>
 #include <asm/efi.h>
 #include <drm/drm_utils.h> /* For drm_get_panel_orientation_quirk */
@@ -574,6 +575,7 @@ static int efifb_probe(struct platform_device *dev)
 		goto err_fb_dealoc;
 	}
 	fb_info(info, "%s frame buffer device\n", info->fix.id);
+	pm_runtime_get_sync(&efifb_pci_dev->dev);
 	return 0;
 
 err_fb_dealoc:
@@ -600,6 +602,7 @@ static int efifb_remove(struct platform_device *pdev)
 	unregister_framebuffer(info);
 	sysfs_remove_groups(&pdev->dev.kobj, efifb_groups);
 	framebuffer_release(info);
+	pm_runtime_put(&efifb_pci_dev->dev);
 
 	return 0;
 }
diff --git a/drivers/video/fbdev/omap/hwa742.c b/drivers/video/fbdev/omap/hwa742.c
index cfe63932f825..b191bef22d98 100644
--- a/drivers/video/fbdev/omap/hwa742.c
+++ b/drivers/video/fbdev/omap/hwa742.c
@@ -100,6 +100,14 @@ struct {
 	struct hwa742_request	req_pool[REQ_POOL_SIZE];
 	struct list_head	pending_req_list;
 	struct list_head	free_req_list;
+
+	/*
+	 * @req_lock: protect request slots pool and its tracking lists
+	 * @req_sema: counter; slot allocators from task contexts must
+	 *            push it down before acquiring a slot. This
+	 *            guarantees that atomic contexts will always have
+	 *            a minimum of IRQ_REQ_POOL_SIZE slots available.
+	 */
 	struct semaphore	req_sema;
 	spinlock_t		req_lock;
 
@@ -224,13 +232,13 @@ static void disable_tearsync(void)
 	hwa742_write_reg(HWA742_NDP_CTRL, b);
 }
 
-static inline struct hwa742_request *alloc_req(void)
+static inline struct hwa742_request *alloc_req(bool can_sleep)
 {
 	unsigned long flags;
 	struct hwa742_request *req;
 	int req_flags = 0;
 
-	if (!in_interrupt())
+	if (can_sleep)
 		down(&hwa742.req_sema);
 	else
 		req_flags = REQ_FROM_IRQ_POOL;
@@ -399,8 +407,8 @@ static void send_frame_complete(void *data)
 	hwa742.int_ctrl->enable_plane(OMAPFB_PLANE_GFX, 0);
 }
 
-#define ADD_PREQ(_x, _y, _w, _h) do {		\
-	req = alloc_req();			\
+#define ADD_PREQ(_x, _y, _w, _h, can_sleep) do {\
+	req = alloc_req(can_sleep);		\
 	req->handler	= send_frame_handler;	\
 	req->complete	= send_frame_complete;	\
 	req->par.update.x = _x;			\
@@ -413,7 +421,8 @@ static void send_frame_complete(void *data)
 } while(0)
 
 static void create_req_list(struct omapfb_update_window *win,
-			    struct list_head *req_head)
+			    struct list_head *req_head,
+			    bool can_sleep)
 {
 	struct hwa742_request *req;
 	int x = win->x;
@@ -427,7 +436,7 @@ static void create_req_list(struct omapfb_update_window *win,
 	color_mode = win->format & OMAPFB_FORMAT_MASK;
 
 	if (x & 1) {
-		ADD_PREQ(x, y, 1, height);
+		ADD_PREQ(x, y, 1, height, can_sleep);
 		width--;
 		x++;
 		flags &= ~OMAPFB_FORMAT_FLAG_TEARSYNC;
@@ -439,19 +448,19 @@ static void create_req_list(struct omapfb_update_window *win,
 
 		if (xspan * height * 2 > hwa742.max_transmit_size) {
 			yspan = hwa742.max_transmit_size / (xspan * 2);
-			ADD_PREQ(x, ystart, xspan, yspan);
+			ADD_PREQ(x, ystart, xspan, yspan, can_sleep);
 			ystart += yspan;
 			yspan = height - yspan;
 			flags &= ~OMAPFB_FORMAT_FLAG_TEARSYNC;
 		}
 
-		ADD_PREQ(x, ystart, xspan, yspan);
+		ADD_PREQ(x, ystart, xspan, yspan, can_sleep);
 		x += xspan;
 		width -= xspan;
 		flags &= ~OMAPFB_FORMAT_FLAG_TEARSYNC;
 	}
 	if (width)
-		ADD_PREQ(x, y, 1, height);
+		ADD_PREQ(x, y, 1, height, can_sleep);
 }
 
 static void auto_update_complete(void *data)
@@ -461,12 +470,12 @@ static void auto_update_complete(void *data)
 			  jiffies + HWA742_AUTO_UPDATE_TIME);
 }
 
-static void hwa742_update_window_auto(struct timer_list *unused)
+static void __hwa742_update_window_auto(bool can_sleep)
 {
 	LIST_HEAD(req_list);
 	struct hwa742_request *last;
 
-	create_req_list(&hwa742.auto_update_window, &req_list);
+	create_req_list(&hwa742.auto_update_window, &req_list, can_sleep);
 	last = list_entry(req_list.prev, struct hwa742_request, entry);
 
 	last->complete = auto_update_complete;
@@ -475,6 +484,11 @@ static void hwa742_update_window_auto(struct timer_list *unused)
 	submit_req_list(&req_list);
 }
 
+static void hwa742_update_window_auto(struct timer_list *unused)
+{
+	__hwa742_update_window_auto(false);
+}
+
 int hwa742_update_window_async(struct fb_info *fbi,
 				 struct omapfb_update_window *win,
 				 void (*complete_callback)(void *arg),
@@ -497,7 +511,7 @@ int hwa742_update_window_async(struct fb_info *fbi,
 		goto out;
 	}
 
-	create_req_list(win, &req_list);
+	create_req_list(win, &req_list, true);
 	last = list_entry(req_list.prev, struct hwa742_request, entry);
 
 	last->complete = complete_callback;
@@ -544,7 +558,7 @@ static void hwa742_sync(void)
 	struct hwa742_request *req;
 	struct completion comp;
 
-	req = alloc_req();
+	req = alloc_req(true);
 
 	req->handler = sync_handler;
 	req->complete = NULL;
@@ -599,7 +613,7 @@ static int hwa742_set_update_mode(enum omapfb_update_mode mode)
 		omapfb_notify_clients(hwa742.fbdev, OMAPFB_EVENT_READY);
 		break;
 	case OMAPFB_AUTO_UPDATE:
-		hwa742_update_window_auto(0);
+		__hwa742_update_window_auto(true);
 		break;
 	case OMAPFB_UPDATE_DISABLED:
 		break;
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dsi.c b/drivers/video/fbdev/omap2/omapfb/dss/dsi.c
index daa313f14335..d43b081d592f 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/dsi.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/dsi.c
@@ -2376,8 +2376,6 @@ static int dsi_sync_vc(struct platform_device *dsidev, int channel)
 
 	WARN_ON(!dsi_bus_is_locked(dsidev));
 
-	WARN_ON(in_interrupt());
-
 	if (!dsi_vc_is_enabled(dsidev, channel))
 		return 0;
 
diff --git a/drivers/video/fbdev/omap2/omapfb/omapfb.h b/drivers/video/fbdev/omap2/omapfb/omapfb.h
index d27abccb37bc..1c1b5201c8b6 100644
--- a/drivers/video/fbdev/omap2/omapfb/omapfb.h
+++ b/drivers/video/fbdev/omap2/omapfb/omapfb.h
@@ -29,7 +29,7 @@ extern bool omapfb_debug;
 			printk(KERN_DEBUG "OMAPFB: " format, ## __VA_ARGS__); \
 	} while (0)
 #else
-#define DBG(format, ...)
+#define DBG(format, ...) no_printk(format, ## __VA_ARGS__)
 #endif
 
 #define FB2OFB(fb_info) ((struct omapfb_info *)(fb_info->par))
diff --git a/drivers/video/fbdev/simplefb.c b/drivers/video/fbdev/simplefb.c
index 533a047d07a2..62f0ded70681 100644
--- a/drivers/video/fbdev/simplefb.c
+++ b/drivers/video/fbdev/simplefb.c
@@ -477,9 +477,8 @@ static int simplefb_probe(struct platform_device *pdev)
 	simplefb_clocks_enable(par, pdev);
 	simplefb_regulators_enable(par, pdev);
 
-	dev_info(&pdev->dev, "framebuffer at 0x%lx, 0x%x bytes, mapped to 0x%p\n",
-			     info->fix.smem_start, info->fix.smem_len,
-			     info->screen_base);
+	dev_info(&pdev->dev, "framebuffer at 0x%lx, 0x%x bytes\n",
+			     info->fix.smem_start, info->fix.smem_len);
 	dev_info(&pdev->dev, "format=%s, mode=%dx%dx%d, linelength=%d\n",
 			     params.format->name,
 			     info->var.xres, info->var.yres,