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authorDave Airlie <airlied@redhat.com>2025-12-03 09:43:09 +1000
committerDave Airlie <airlied@redhat.com>2025-12-03 09:43:49 +1000
commit0692602defb0c273f80dec9c564ca50726404aca (patch)
tree2fea4ab096be220f377eab9934c39790cb453c83 /drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
parentb3239df349c2c2c94686674489c9629c89ca49a1 (diff)
parent3925683515e93844be204381d2d5a1df5de34f31 (diff)
Merge tag 'amd-drm-next-6.19-2025-12-02' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-next-6.19-2025-12-02: amdgpu: - Unified MES fix - SMU 11 unbalanced irq fix - Fix for driver reloading on APUs - pp_table sysfs fix - Fix memory leak in fence handling - HDMI fix - DC cursor fixes - eDP panel parsing fix - Brightness fix - DC analog fixes - EDID retry fixes - UserQ fixes - RAS fixes - IP discovery fix - Add missing locking in amdgpu_ttm_access_memory_sdma() - Smart Power OLED fix - PRT and page fault fixes for GC 6-8 - VMID reservation fix - ACP platform device fix - Add missing vm fault handling for GC 11-12 - VPE fix amdkfd: - Partitioning fix Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patch.msgid.link/20251202220101.2039347-1-alexander.deucher@amd.com
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
index 7bc389d9f5c4..ba59ee8e398a 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
@@ -103,12 +103,41 @@ static int gmc_v11_0_process_interrupt(struct amdgpu_device *adev,
uint32_t vmhub_index = entry->client_id == SOC21_IH_CLIENTID_VMC ?
AMDGPU_MMHUB0(0) : AMDGPU_GFXHUB(0);
struct amdgpu_vmhub *hub = &adev->vmhub[vmhub_index];
+ bool retry_fault = !!(entry->src_data[1] &
+ AMDGPU_GMC9_FAULT_SOURCE_DATA_RETRY);
+ bool write_fault = !!(entry->src_data[1] &
+ AMDGPU_GMC9_FAULT_SOURCE_DATA_WRITE);
uint32_t status = 0;
u64 addr;
addr = (u64)entry->src_data[0] << 12;
addr |= ((u64)entry->src_data[1] & 0xf) << 44;
+ if (retry_fault) {
+ /* Returning 1 here also prevents sending the IV to the KFD */
+
+ /* Process it only if it's the first fault for this address */
+ if (entry->ih != &adev->irq.ih_soft &&
+ amdgpu_gmc_filter_faults(adev, entry->ih, addr, entry->pasid,
+ entry->timestamp))
+ return 1;
+
+ /* Delegate it to a different ring if the hardware hasn't
+ * already done it.
+ */
+ if (entry->ih == &adev->irq.ih) {
+ amdgpu_irq_delegate(adev, entry, 8);
+ return 1;
+ }
+
+ /* Try to handle the recoverable page faults by filling page
+ * tables
+ */
+ if (amdgpu_vm_handle_fault(adev, entry->pasid, 0, 0, addr,
+ entry->timestamp, write_fault))
+ return 1;
+ }
+
if (!amdgpu_sriov_vf(adev)) {
/*
* Issue a dummy read to wait for the status register to