From 72e71a82d6986b2259168575b1cea7fb78f9da32 Mon Sep 17 00:00:00 2001 From: Shashank Sharma Date: Wed, 29 Jul 2020 16:39:39 +0530 Subject: drm/amdgpu: add new trace event for page table update MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch adds a new trace event to track the PTE update events. This specific event will provide information like: - start and end of virtual memory mapping - HW engine flags for the map - physical address for mapping This will be particularly useful for memory profiling tools (like RMV) which are monitoring the page table update events. V2: Added physical address lookup logic in trace point V3: switch to use __dynamic_array added nptes int the TPprint arguments list added page size in the arg list V4: Addressed Christian's review comments add start/end instead of seg use incr instead of page_sz to be accurate V5: Addressed Christian's review comments: add pid and vm context information in the event V6: Re-sequence the variables (put pid and ctx_id first) Cc: Christian König Cc: Alex Deucher Signed-off-by: Christian König Signed-off-by: Shashank Sharma Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h | 43 +++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h index 63e734a125fb..82c2e70a6a71 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h @@ -321,6 +321,49 @@ DEFINE_EVENT(amdgpu_vm_mapping, amdgpu_vm_bo_cs, TP_ARGS(mapping) ); +TRACE_EVENT(amdgpu_vm_update_ptes, + TP_PROTO(struct amdgpu_vm_update_params *p, + uint64_t start, uint64_t end, + unsigned int nptes, uint64_t dst, + uint64_t incr, uint64_t flags, + pid_t pid, uint64_t vm_ctx), + TP_ARGS(p, start, end, nptes, dst, incr, flags, pid, vm_ctx), + TP_STRUCT__entry( + __field(u64, start) + __field(u64, end) + __field(u64, flags) + __field(unsigned int, nptes) + __field(u64, incr) + __field(pid_t, pid) + __field(u64, vm_ctx) + __dynamic_array(u64, dst, nptes) + ), + + TP_fast_assign( + unsigned int i; + + __entry->start = start; + __entry->end = end; + __entry->flags = flags; + __entry->incr = incr; + __entry->nptes = nptes; + __entry->pid = pid; + __entry->vm_ctx = vm_ctx; + for (i = 0; i < nptes; ++i) { + u64 addr = p->pages_addr ? amdgpu_vm_map_gart( + p->pages_addr, dst) : dst; + + ((u64 *)__get_dynamic_array(dst))[i] = addr; + dst += incr; + } + ), + TP_printk("pid:%u vm_ctx:0x%llx start:0x%010llx end:0x%010llx," + " flags:0x%llx, incr:%llu, dst:\n%s", __entry->pid, + __entry->vm_ctx, __entry->start, __entry->end, + __entry->flags, __entry->incr, __print_array( + __get_dynamic_array(dst), __entry->nptes, 8)) +); + TRACE_EVENT(amdgpu_vm_set_ptes, TP_PROTO(uint64_t pe, uint64_t addr, unsigned count, uint32_t incr, uint64_t flags, bool direct), -- cgit v1.2.3