Merge tag 'drm-fixes-2020-08-21' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Regular fixes pull for rc2. Usual rc2 doesn't seem too busy, mainly
  i915 and amdgpu. I'd expect the usual uptick for rc3.

  amdgpu:
   - Fix allocation size
   - SR-IOV fixes
   - Vega20 SMU feature state caching fix
   - Fix custom pptable handling
   - Arcturus golden settings update
   - Several display fixes
   - Fixes for Navy Flounder
   - Misc display fixes
   - RAS fix

  amdkfd:
   - SDMA fix for renoir

  i915:
   - Fix device parameter usage for selftest mock i915 device
   - Fix LPSP capability debugfs NULL dereference
   - Fix buddy register pagemask table
   - Fix intel_atomic_check() non-negative return value
   - Fix selftests passing a random 0 into ilog2()
   - Fix TGL power well enable/disable ordering
   - Switch to PMU module refcounting
   - GVT fixes

  virtio:
   - Add missing dma_fence_put() in virtio_gpu_execbuffer_ioctl()
   - Fix memory leak in virtio_gpu_cleanup_object()"

* tag 'drm-fixes-2020-08-21' of git://anongit.freedesktop.org/drm/drm: (34 commits)
  Revert "drm/amdgpu: disable gfxoff for navy_flounder"
  drm/i915/tgl: Make sure TC-cold is blocked before enabling TC AUX power wells
  drm/i915/selftests: Avoid passing a random 0 into ilog2
  drm/i915: Fix wrong return value in intel_atomic_check()
  drm/i915: Update bw_buddy pagemask table
  drm/i915/display: Check for an LPSP encoder before dereferencing
  drm/i915: Copy default modparams to mock i915_device
  drm/i915: Provide the perf pmu.module
  drm/amd/display: fix pow() crashing when given base 0
  drm/amd/display: Reset scrambling on Test Pattern
  drm/amd/display: fix dcn3 wide timing dsc validation
  drm/amd/display: Fix DFPstate hang due to view port changed
  drm/amd/display: Assign correct left shift
  drm/amd/display: Call DMUB for eDP power control
  drm/amdkfd: fix the wrong sdma instance query for renoir
  drm/amdgpu: parse ta firmware for navy_flounder
  drm/amdgpu: fix NULL pointer access issue when unloading driver
  drm/amdgpu: fix uninit-value in arcturus_log_thermal_throttling_event()
  drm/amdgpu: disable gfxoff for navy_flounder
  drm/amdgpu/display: use GFP_ATOMIC in dcn20_validate_bandwidth_internal
  ...

1 files changed, 19 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
index 757fa8e83f5b..c79fc54bc3c4 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
@@ -134,6 +134,12 @@ static void mmhub_v2_0_init_cache_regs(struct amdgpu_device *adev)
 {
 	uint32_t tmp;
 
+	/* These registers are not accessible to VF-SRIOV.
+	 * The PF will program them instead.
+	 */
+	if (amdgpu_sriov_vf(adev))
+		return;
+
 	/* Setup L2 cache */
 	tmp = RREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL);
 	tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, ENABLE_L2_CACHE, 1);
@@ -189,6 +195,12 @@ static void mmhub_v2_0_enable_system_domain(struct amdgpu_device *adev)
 
 static void mmhub_v2_0_disable_identity_aperture(struct amdgpu_device *adev)
 {
+	/* These registers are not accessible to VF-SRIOV.
+	 * The PF will program them instead.
+	 */
+	if (amdgpu_sriov_vf(adev))
+		return;
+
 	WREG32_SOC15(MMHUB, 0,
 		     mmMMVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32,
 		     0xFFFFFFFF);
@@ -318,6 +330,13 @@ void mmhub_v2_0_gart_disable(struct amdgpu_device *adev)
 void mmhub_v2_0_set_fault_enable_default(struct amdgpu_device *adev, bool value)
 {
 	u32 tmp;
+
+	/* These registers are not accessible to VF-SRIOV.
+	 * The PF will program them instead.
+	 */
+	if (amdgpu_sriov_vf(adev))
+		return;
+
 	tmp = RREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_CNTL);
 	tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
 			    RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);