Merge tag 'drm-fixes-2023-08-11' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "This week's fixes, as expected amdgpu is probably a little larger
  since it skipped a week, but otherwise a few nouveau fixes, a couple
  of bridge, rockchip and ivpu fixes.

  amdgpu:
   - S/G display workaround for platforms with >= 64G of memory
   - S0i3 fix
   - SMU 13.0.0 fixes
   - Disable SMU 13.x OD features temporarily while the interface is
     reworked to enable additional functionality
   - Fix cursor gamma issues on DCN3+
   - SMU 13.0.6 fixes
   - Fix possible UAF in CS IOCTL
   - Polaris display regression fix
   - Only enable CP GFX shadowing on SR-IOV

  amdkfd:
   - Raven/Picasso KFD regression fix

  bridge:
   - it6505: runtime PM fix
   - lt9611: revert Do not generate HFP/HBP/HSA and EOT packet

  nouveau:
   - enable global memory loads for helper invocations for userspace
     driver
   - dp 1.3 dpcd+ workaround fix
   - remove unused function
   - revert incorrect NULL check

  accel/ivpu:
   - Add set_pages_array_wc/uc for internal buffers

  rockchip:
   - Don't spam logs in atomic check"

* tag 'drm-fixes-2023-08-11' of git://anongit.freedesktop.org/drm/drm: (23 commits)
  drm/shmem-helper: Reset vma->vm_ops before calling dma_buf_mmap()
  drm/amdkfd: disable IOMMUv2 support for Raven
  drm/amdkfd: disable IOMMUv2 support for KV/CZ
  drm/amdkfd: ignore crat by default
  drm/amdgpu/gfx11: only enable CP GFX shadowing on SR-IOV
  drm/amd/display: Fix a regression on Polaris cards
  drm/amdgpu: fix possible UAF in amdgpu_cs_pass1()
  drm/amd/pm: Fix SMU v13.0.6 energy reporting
  drm/amd/display: check attr flag before set cursor degamma on DCN3+
  drm/amd/pm: disable the SMU13 OD feature support temporarily
  drm/amd/pm: correct the pcie width for smu 13.0.0
  drm/amd/display: Don't show stack trace for missing eDP
  drm/amdgpu: Match against exact bootloader status
  drm/amd/pm: skip the RLC stop when S0i3 suspend for SMU v13.0.4/11
  drm/amd: Disable S/G for APUs when 64GB or more host memory
  drm/rockchip: Don't spam logs in atomic check
  accel/ivpu: Add set_pages_array_wc/uc for internal buffers
  drm/nouveau/disp: Revert a NULL check inside nouveau_connector_get_modes
  Revert "drm/bridge: lt9611: Do not generate HFP/HBP/HSA and EOT packet"
  drm/nouveau: remove unused tu102_gr_load() function
  ...

1 files changed, 26 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index a2cdde0ca0a7..45e9d737e5b8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1459,6 +1459,32 @@ bool amdgpu_device_need_post(struct amdgpu_device *adev)
 }
 
 /*
+ * On APUs with >= 64GB white flickering has been observed w/ SG enabled.
+ * Disable S/G on such systems until we have a proper fix.
+ * https://gitlab.freedesktop.org/drm/amd/-/issues/2354
+ * https://gitlab.freedesktop.org/drm/amd/-/issues/2735
+ */
+bool amdgpu_sg_display_supported(struct amdgpu_device *adev)
+{
+	switch (amdgpu_sg_display) {
+	case -1:
+		break;
+	case 0:
+		return false;
+	case 1:
+		return true;
+	default:
+		return false;
+	}
+	if ((totalram_pages() << (PAGE_SHIFT - 10)) +
+	    (adev->gmc.real_vram_size / 1024) >= 64000000) {
+		DRM_WARN("Disabling S/G due to >=64GB RAM\n");
+		return false;
+	}
+	return true;
+}
+
+/*
  * Intel hosts such as Raptor Lake and Sapphire Rapids don't support dynamic
  * speed switching. Until we have confirmation from Intel that a specific host
  * supports it, it's safer that we keep it disabled for all.