msm: kgsl: Synchronize access to IOMMU cfg port
Add a software based spinlock between CPU and GPU.
This spinlock is used to grant mutually exclusive access to
SMMU configuration between CPU and GPU. This mutual exclusion
is required to prevent deadlock in the system.
CRs-Fixed: 409198
Change-Id: Ic375beaaf4c5505b41d3fabc4adf15965d71b13a
Signed-off-by: Tarun Karra <tkarra@codeaurora.org>
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rajeev Kulkarnie <krajeev@codeaurora.org>
diff --git a/drivers/gpu/msm/adreno_ringbuffer.h b/drivers/gpu/msm/adreno_ringbuffer.h
index 4f58a15..50d9c25 100644
--- a/drivers/gpu/msm/adreno_ringbuffer.h
+++ b/drivers/gpu/msm/adreno_ringbuffer.h
@@ -130,6 +130,10 @@
struct adreno_context *context,
unsigned int numcmds);
+int adreno_ringbuffer_read_pfp_ucode(struct kgsl_device *device);
+
+int adreno_ringbuffer_read_pm4_ucode(struct kgsl_device *device);
+
static inline int adreno_ringbuffer_count(struct adreno_ringbuffer *rb,
unsigned int rptr)
{