gpu: ion: Add Tracepoints to iommu/system heap
Add trace events to kmem.h and set up trace points in ion/system
heap to keep track of information pertaining to page allocations.
Change-Id: I35c0bd1c0c2032dba6ea80b060b05bdb847d58ad
Signed-off-by: Adrian Alexei <aalexei@codeaurora.org>
diff --git a/drivers/gpu/ion/ion_iommu_heap.c b/drivers/gpu/ion/ion_iommu_heap.c
index 53d853d..bc9bddd 100644
--- a/drivers/gpu/ion/ion_iommu_heap.c
+++ b/drivers/gpu/ion/ion_iommu_heap.c
@@ -27,6 +27,7 @@
#include <asm/page.h>
#include <asm/cacheflush.h>
#include <mach/iommu_domains.h>
+#include <trace/events/kmem.h>
struct ion_iommu_heap {
struct ion_heap heap;
@@ -83,9 +84,13 @@
} else {
gfp |= GFP_KERNEL;
}
+ trace_alloc_pages_iommu_start(gfp, orders[i]);
page = alloc_pages(gfp, orders[i]);
- if (!page)
+ trace_alloc_pages_iommu_end(gfp, orders[i]);
+ if (!page) {
+ trace_alloc_pages_iommu_fail(gfp, orders[i]);
continue;
+ }
info = kmalloc(sizeof(struct page_info), GFP_KERNEL);
info->page = page;
diff --git a/drivers/gpu/ion/ion_system_heap.c b/drivers/gpu/ion/ion_system_heap.c
index 02f6d93..4e9f55c 100644
--- a/drivers/gpu/ion/ion_system_heap.c
+++ b/drivers/gpu/ion/ion_system_heap.c
@@ -31,6 +31,7 @@
#include <asm/cacheflush.h>
#include <linux/msm_ion.h>
#include <linux/dma-mapping.h>
+#include <trace/events/kmem.h>
static atomic_t system_heap_allocated;
static atomic_t system_contig_heap_allocated;
@@ -85,9 +86,13 @@
if (order > 4)
gfp_flags = high_order_gfp_flags;
+ trace_alloc_pages_sys_start(gfp_flags, order);
page = alloc_pages(gfp_flags, order);
- if (!page)
+ trace_alloc_pages_sys_end(gfp_flags, order);
+ if (!page) {
+ trace_alloc_pages_sys_fail(gfp_flags, order);
return 0;
+ }
sg_init_table(&sg, 1);
sg_set_page(&sg, page, PAGE_SIZE << order, 0);
dma_sync_sg_for_device(NULL, &sg, 1, DMA_BIDIRECTIONAL);