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authorshaoyunl <Shaoyun.Liu@amd.com>2018-07-11 22:32:49 -0400
committerOded Gabbay <oded.gabbay@gmail.com>2018-07-11 22:32:49 -0400
commitb97dfa27ef3ad3eddd2cb97a3b6a140d7037827a (patch)
treea8df9ac8dfc2d082435a6252792f01760412ebb5 /drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
parent101fee63cbb0a3df9e54aaafbfad0ab5821a34e6 (diff)
downloadblackbird-op-linux-b97dfa27ef3ad3eddd2cb97a3b6a140d7037827a.tar.gz
blackbird-op-linux-b97dfa27ef3ad3eddd2cb97a3b6a140d7037827a.zip
drm/amdgpu: save vm fault information for amdkfd
amdgpu save the vm fault related information for KFD usage and keep the copy until KFD read it. Signed-off-by: shaoyun liu <shaoyun.liu@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c33
1 files changed, 32 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
index 10920f0bd85f..36dc367c4b45 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
@@ -28,6 +28,7 @@
#include "cik.h"
#include "gmc_v7_0.h"
#include "amdgpu_ucode.h"
+#include "amdgpu_amdkfd.h"
#include "bif/bif_4_1_d.h"
#include "bif/bif_4_1_sh_mask.h"
@@ -1078,6 +1079,12 @@ static int gmc_v7_0_sw_init(void *handle)
adev->vm_manager.vram_base_offset = 0;
}
+ adev->gmc.vm_fault_info = kmalloc(sizeof(struct kfd_vm_fault_info),
+ GFP_KERNEL);
+ if (!adev->gmc.vm_fault_info)
+ return -ENOMEM;
+ atomic_set(&adev->gmc.vm_fault_info_updated, 0);
+
return 0;
}
@@ -1087,6 +1094,7 @@ static int gmc_v7_0_sw_fini(void *handle)
amdgpu_gem_force_release(adev);
amdgpu_vm_manager_fini(adev);
+ kfree(adev->gmc.vm_fault_info);
gmc_v7_0_gart_fini(adev);
amdgpu_bo_fini(adev);
release_firmware(adev->gmc.fw);
@@ -1276,7 +1284,7 @@ static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
struct amdgpu_iv_entry *entry)
{
- u32 addr, status, mc_client;
+ u32 addr, status, mc_client, vmid;
addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
@@ -1301,6 +1309,29 @@ static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
entry->pasid);
}
+ vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
+ VMID);
+ if (amdgpu_amdkfd_is_kfd_vmid(adev, vmid)
+ && !atomic_read(&adev->gmc.vm_fault_info_updated)) {
+ struct kfd_vm_fault_info *info = adev->gmc.vm_fault_info;
+ u32 protections = REG_GET_FIELD(status,
+ VM_CONTEXT1_PROTECTION_FAULT_STATUS,
+ PROTECTIONS);
+
+ info->vmid = vmid;
+ info->mc_id = REG_GET_FIELD(status,
+ VM_CONTEXT1_PROTECTION_FAULT_STATUS,
+ MEMORY_CLIENT_ID);
+ info->status = status;
+ info->page_addr = addr;
+ info->prot_valid = protections & 0x7 ? true : false;
+ info->prot_read = protections & 0x8 ? true : false;
+ info->prot_write = protections & 0x10 ? true : false;
+ info->prot_exec = protections & 0x20 ? true : false;
+ mb();
+ atomic_set(&adev->gmc.vm_fault_info_updated, 1);
+ }
+
return 0;
}
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