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pan/decode: Allow updating mmaps

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This allows the caller to call track_mmap multiple times for the same
gpu_va for the purpose of updating the mmap. This is used to trace
invisible BOs with kbase and doesn't apply to native traces.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
This commit is contained in:
Alyssa Rosenzweig
2019-08-19 10:55:29 -07:00
parent 52101e48f8
commit b072d0357b
1 changed files with 31 additions and 10 deletions
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src/panfrost/pandecode/common.c
+31 -10
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@@ -47,9 +47,39 @@ pandecode_find_mapped_gpu_mem_containing(uint64_t addr)
return NULL;
}
static void
pandecode_add_name(struct pandecode_mapped_memory *mem, uint64_t gpu_va, const char *name)
{
if (!name) {
/* If we don't have a name, assign one */
snprintf(mem->name, ARRAY_SIZE(mem->name) - 1,
"memory_%" PRIx64, gpu_va);
} else {
assert((strlen(name) + 1) < ARRAY_SIZE(mem->name));
memcpy(mem->name, name, strlen(name) + 1);
}
}
void
pandecode_inject_mmap(uint64_t gpu_va, void *cpu, unsigned sz, const char *name)
{
/* First, search if we already mapped this and are just updating an address */
list_for_each_entry(struct pandecode_mapped_memory, pos, &mmaps.node, node) {
if (pos->gpu_va == gpu_va) {
/* TODO: Resizing weirdness. Only applies to tracing
* the legacy driver, not for native traces */
pos->length = sz;
pos->addr = cpu;
pandecode_add_name(pos, gpu_va, name);
return;
}
}
/* Otherwise, add a fresh mapping */
struct pandecode_mapped_memory *mapped_mem = NULL;
mapped_mem = malloc(sizeof(*mapped_mem));
@@ -58,16 +88,7 @@ pandecode_inject_mmap(uint64_t gpu_va, void *cpu, unsigned sz, const char *name)
mapped_mem->gpu_va = gpu_va;
mapped_mem->length = sz;
mapped_mem->addr = cpu;
if (!name) {
/* If we don't have a name, assign one */
snprintf(mapped_mem->name, ARRAY_SIZE(mapped_mem->name) - 1,
"memory_%" PRIx64, gpu_va);
} else {
assert((strlen(name) + 1) < ARRAY_SIZE(mapped_mem->name));
memcpy(mapped_mem->name, name, strlen(name) + 1);
}
pandecode_add_name(mapped_mem, gpu_va, name);
list_add(&mapped_mem->node, &mmaps.node);
}