Merge tag 'drm-next-2021-04-30' of git://anongit.freedesktop.org/drm/drm

Pull more drm updates from Dave Airlie:
 "Looks like I missed a tegra feature request for next, but should still
  be fine since it's pretty self contained.

  Apart from that got a set of i915 and amdgpu fixes as per usual along
  with a few misc fixes.

  tegra:
   - Tegra186 hardware cursor support
   - better capability reporting for different SoC
   - better framebuffer modifier support
   - host1x fixes

  ttm:
   - fix unswappable BO handling

  efifb:
   - check for PCI before using it

  amdgpu:
   - Fixes for Aldebaran
   - Display LTTPR fixes
   - eDP fixes
   - Fixes for Vangogh
   - RAS fixes
   - ASPM support
   - Renoir SMU fixes
   - Modifier fixes
   - Misc code cleanups
   - Freesync fixes

  i915:
   - Several fixes to GLK handling in recent display refactoring
   - Rare watchdog timer race fix
   - Cppcheck redundant condition fix
   - Overlay error code propagation fix
   - Documentation fix
   - gvt: Remove one unused function warning
   - gvt: Fix intel_gvt_init_device() return type
   - gvt: Remove one duplicated register accessible check"

* tag 'drm-next-2021-04-30' of git://anongit.freedesktop.org/drm/drm: (111 commits)
  efifb: Check efifb_pci_dev before using it
  drm/i915: Fix docbook descriptions for i915_gem_shrinker
  drm/i915: fix an error code in intel_overlay_do_put_image()
  drm/i915/display/psr: Fix cppcheck warnings
  drm/i915: Disable LTTPR detection on GLK once again
  drm/i915: Restore lost glk ccs w/a
  drm/i915: Restore lost glk FBC 16bpp w/a
  drm/i915: Take request reference before arming the watchdog timer
  drm/ttm: fix error handling if no BO can be swapped out v4
  drm/i915/gvt: Remove duplicated register accessible check
  drm/amdgpu/gmc9: remove dummy read workaround for newer chips
  drm/amdgpu: Add mem sync flag for IB allocated by SA
  drm/amdgpu: Fix SDMA RAS error reporting on Aldebaran
  drm/amdgpu: Reset RAS error count and status regs
  Revert "drm/amdgpu: workaround the TMR MC address issue (v2)"
  drm/amd/display: 3.2.132
  drm/amd/display: [FW Promotion] Release 0.0.62
  drm/amd/display: add helper for enabling mst stream features
  drm/amd/display: Report Proper Quantization Range in AVI Infoframe
  drm/amd/display: Fix call to pass bpp in 16ths of a bit
  ...

1 files changed, 35 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
index 9a13f47022df..529545045a3e 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
@@ -3077,6 +3077,37 @@ static int force_timing_sync_get(void *data, u64 *val)
 DEFINE_DEBUGFS_ATTRIBUTE(force_timing_sync_ops, force_timing_sync_get,
 			 force_timing_sync_set, "%llu\n");
 
+
+/*
+ * Disables all HPD and HPD RX interrupt handling in the
+ * driver when set to 1. Default is 0.
+ */
+static int disable_hpd_set(void *data, u64 val)
+{
+	struct amdgpu_device *adev = data;
+
+	adev->dm.disable_hpd_irq = (bool)val;
+
+	return 0;
+}
+
+
+/*
+ * Returns 1 if HPD and HPRX interrupt handling is disabled,
+ * 0 otherwise.
+ */
+static int disable_hpd_get(void *data, u64 *val)
+{
+	struct amdgpu_device *adev = data;
+
+	*val = adev->dm.disable_hpd_irq;
+
+	return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(disable_hpd_ops, disable_hpd_get,
+			 disable_hpd_set, "%llu\n");
+
 /*
  * Sets the DC visual confirm debug option from the given string.
  * Example usage: echo 1 > /sys/kernel/debug/dri/0/amdgpu_visual_confirm
@@ -3213,4 +3244,8 @@ void dtn_debugfs_init(struct amdgpu_device *adev)
 
 	debugfs_create_file_unsafe("amdgpu_dm_dcc_en", 0644, root, adev,
 				   &dcc_en_bits_fops);
+
+	debugfs_create_file_unsafe("amdgpu_dm_disable_hpd", 0644, root, adev,
+				   &disable_hpd_ops);
+
 }