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This commit is contained in:
Bernhard Stoeckner
2023-07-18 15:54:53 +02:00
parent 22a077c4fe
commit 337e28efda
264 changed files with 67251 additions and 107479 deletions
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48
kernel-open/nvidia-uvm/uvm_volta_fault_buffer.c
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@@ -25,7 +25,8 @@
#include "uvm_global.h"
#include "uvm_gpu.h"
#include "uvm_hal.h"
#include "uvm_push.h"
#include "uvm_conf_computing.h"
#include "nv_uvm_types.h"
#include "hwref/volta/gv100/dev_fault.h"
#include "hwref/volta/gv100/dev_fb.h"
#include "clc369.h"
@@ -246,6 +247,20 @@ static NvU32 *get_fault_buffer_entry(uvm_parent_gpu_t *parent_gpu, NvU32 index)
return fault_entry;
}
// See uvm_pascal_fault_buffer.c::get_fault_buffer_entry_metadata
static UvmFaultMetadataPacket *get_fault_buffer_entry_metadata(uvm_parent_gpu_t *parent_gpu, NvU32 index)
{
UvmFaultMetadataPacket *fault_entry_metadata;
UVM_ASSERT(index < parent_gpu->fault_buffer_info.replayable.max_faults);
UVM_ASSERT(!uvm_parent_gpu_replayable_fault_buffer_is_uvm_owned(parent_gpu));
fault_entry_metadata = parent_gpu->fault_buffer_info.rm_info.replayable.bufferMetadata;
UVM_ASSERT(fault_entry_metadata != NULL);
return fault_entry_metadata + index;
}
static void parse_fault_entry_common(uvm_parent_gpu_t *parent_gpu,
NvU32 *fault_entry,
uvm_fault_buffer_entry_t *buffer_entry)
@@ -323,24 +338,47 @@ static void parse_fault_entry_common(uvm_parent_gpu_t *parent_gpu,
UVM_ASSERT_MSG(replayable_fault_enabled, "Fault with REPLAYABLE_FAULT_EN bit unset\n");
}
void uvm_hal_volta_fault_buffer_parse_entry(uvm_parent_gpu_t *parent_gpu,
NvU32 index,
uvm_fault_buffer_entry_t *buffer_entry)
NV_STATUS uvm_hal_volta_fault_buffer_parse_replayable_entry(uvm_parent_gpu_t *parent_gpu,
NvU32 index,
uvm_fault_buffer_entry_t *buffer_entry)
{
fault_buffer_entry_c369_t entry;
NvU32 *fault_entry;
BUILD_BUG_ON(NVC369_BUF_SIZE > UVM_GPU_MMU_MAX_FAULT_PACKET_SIZE);
BUILD_BUG_ON(sizeof(entry) > UVM_GPU_MMU_MAX_FAULT_PACKET_SIZE);
// Valid bit must be set before this function is called
UVM_ASSERT(parent_gpu->fault_buffer_hal->entry_is_valid(parent_gpu, index));
fault_entry = get_fault_buffer_entry(parent_gpu, index);
// When Confidential Computing is enabled, faults are encrypted by RM, so
// they need to be decrypted before they can be parsed
if (!uvm_parent_gpu_replayable_fault_buffer_is_uvm_owned(parent_gpu)) {
NV_STATUS status;
UvmFaultMetadataPacket *fault_entry_metadata = get_fault_buffer_entry_metadata(parent_gpu, index);
status = uvm_conf_computing_fault_decrypt(parent_gpu,
&entry,
fault_entry,
fault_entry_metadata->authTag,
fault_entry_metadata->valid);
if (status != NV_OK) {
uvm_global_set_fatal_error(status);
return status;
}
fault_entry = (NvU32 *) &entry;
}
parse_fault_entry_common(parent_gpu, fault_entry, buffer_entry);
UVM_ASSERT(buffer_entry->is_replayable);
// Automatically clear valid bit for the entry in the fault buffer
parent_gpu->fault_buffer_hal->entry_clear_valid(parent_gpu, index);
return NV_OK;
}
void uvm_hal_volta_fault_buffer_parse_non_replayable_entry(uvm_parent_gpu_t *parent_gpu,