msm: kgsl: Enable "big page" memory allocations
Allow users to specify "big page" mode when allocating GPU
memory. This will attempt to allocate contigious units of 64k
bytes per instead of the usual PAGE_SIZE units. If the allocation
fails, then automatically fall back to allocate the rest of the
region with 4K pages. This means that potentially any allocation
could be comprised of a mixture of 64k chunks and 4k chunks.
Change-Id: Ib92c0c099d3b10ba54dbb864c5f977f8df4912f2
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Jeremy Gebben <jgebben@codeaurora.org>
Signed-off-by: Rajeev Kulkarni <krajeev@codeaurora.org>
diff --git a/drivers/gpu/msm/kgsl_debugfs.c b/drivers/gpu/msm/kgsl_debugfs.c
index 40ed7ca..b49c260 100644
--- a/drivers/gpu/msm/kgsl_debugfs.c
+++ b/drivers/gpu/msm/kgsl_debugfs.c
@@ -168,8 +168,9 @@
struct kgsl_mem_entry *entry;
struct rb_node *node;
struct kgsl_process_private *private = s->private;
- char flags[3];
+ char flags[4];
char usage[16];
+ unsigned int align;
spin_lock(&private->mem_lock);
seq_printf(s, "%8s %8s %5s %10s %16s %5s\n",
@@ -182,7 +183,16 @@
flags[0] = m->priv & KGSL_MEMFLAGS_GLOBAL ? 'g' : '-';
flags[1] = m->priv & KGSL_MEMFLAGS_GPUREADONLY ? 'r' : '-';
- flags[2] = '\0';
+
+ align = (m->priv & KGSL_MEMALIGN_MASK) >> KGSL_MEMALIGN_SHIFT;
+ if (align >= ilog2(SZ_1M))
+ flags[2] = 'L';
+ else if (align >= ilog2(SZ_64K))
+ flags[2] = 'l';
+ else
+ flags[2] = '-';
+
+ flags[3] = '\0';
kgsl_get_memory_usage(usage, sizeof(usage), m->priv);