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drm/amd/amdgpu: Add tracepoint for DMA page mapping (v4)

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This helps map DMA addresses back to physical addresses.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

(v2):  Added tracepoints for USERPTR, SG mappings, and
     SWIOTBL mappings.  Reformatted trace call perform
     PCI decoding internal to the trace.

(v3):  Add unmap tracepoints as well

(v4):  Move traces into separate functions
This commit is contained in:
Tom St Denis
2017-07-31 09:35:24 -04:00
committed by Alex Deucher
parent dbcca4aab1
commit aca8171812
2 changed files with 106 additions and 6 deletions
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56
drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
View File

@@ -14,6 +14,62 @@
#define AMDGPU_JOB_GET_TIMELINE_NAME(job) \
job->base.s_fence->finished.ops->get_timeline_name(&job->base.s_fence->finished)
TRACE_EVENT(amdgpu_ttm_tt_populate,
TP_PROTO(struct amdgpu_device *adev, uint64_t dma_address, uint64_t phys_address),
TP_ARGS(adev, dma_address, phys_address),
TP_STRUCT__entry(
__field(uint16_t, domain)
__field(uint8_t, bus)
__field(uint8_t, slot)
__field(uint8_t, func)
__field(uint64_t, dma)
__field(uint64_t, phys)
),
TP_fast_assign(
__entry->domain = pci_domain_nr(adev->pdev->bus);
__entry->bus = adev->pdev->bus->number;
__entry->slot = PCI_SLOT(adev->pdev->devfn);
__entry->func = PCI_FUNC(adev->pdev->devfn);
__entry->dma = dma_address;
__entry->phys = phys_address;
),
TP_printk("%04x:%02x:%02x.%x: 0x%llx => 0x%llx",
(unsigned)__entry->domain,
(unsigned)__entry->bus,
(unsigned)__entry->slot,
(unsigned)__entry->func,
(unsigned long long)__entry->dma,
(unsigned long long)__entry->phys)
);
TRACE_EVENT(amdgpu_ttm_tt_unpopulate,
TP_PROTO(struct amdgpu_device *adev, uint64_t dma_address, uint64_t phys_address),
TP_ARGS(adev, dma_address, phys_address),
TP_STRUCT__entry(
__field(uint16_t, domain)
__field(uint8_t, bus)
__field(uint8_t, slot)
__field(uint8_t, func)
__field(uint64_t, dma)
__field(uint64_t, phys)
),
TP_fast_assign(
__entry->domain = pci_domain_nr(adev->pdev->bus);
__entry->bus = adev->pdev->bus->number;
__entry->slot = PCI_SLOT(adev->pdev->devfn);
__entry->func = PCI_FUNC(adev->pdev->devfn);
__entry->dma = dma_address;
__entry->phys = phys_address;
),
TP_printk("%04x:%02x:%02x.%x: 0x%llx => 0x%llx",
(unsigned)__entry->domain,
(unsigned)__entry->bus,
(unsigned)__entry->slot,
(unsigned)__entry->func,
(unsigned long long)__entry->dma,
(unsigned long long)__entry->phys)
);
TRACE_EVENT(amdgpu_mm_rreg,
TP_PROTO(unsigned did, uint32_t reg, uint32_t value),
TP_ARGS(did, reg, value),