msm: kgsl: Add support for GPU System Cache usage
Activate and deactivate the GPU slice in the system
cache upon GPU power collapse/restore. Configure the
SCIDs for the slices used by the GPU. Currently, the
GPU uses one slice for all its blocks.
Also enable the right memory attributes for a buffer
to be allocated into the system cache. The memory
attributes used are outer-cacheable, read-allocate,
write-no-allocate.
CRs-Fixed: 1081617
Change-Id: I54d5ddce8056c0ef491a21bb19ce9fd9e30a0540
Signed-off-by: Sushmita Susheelendra <ssusheel@codeaurora.org>
diff --git a/drivers/gpu/msm/adreno.h b/drivers/gpu/msm/adreno.h
index 9456a4f..4fe7285 100644
--- a/drivers/gpu/msm/adreno.h
+++ b/drivers/gpu/msm/adreno.h
@@ -396,6 +396,7 @@
* @irq_storm_work: Worker to handle possible interrupt storms
* @active_list: List to track active contexts
* @active_list_lock: Lock to protect active_list
+ * @gpu_llc_slice: GPU system cache slice descriptor
*/
struct adreno_device {
struct kgsl_device dev; /* Must be first field in this struct */
@@ -454,6 +455,8 @@
struct list_head active_list;
spinlock_t active_list_lock;
+
+ void *gpu_llc_slice;
};
/**
@@ -809,6 +812,8 @@
void (*enable_64bit)(struct adreno_device *);
void (*clk_set_options)(struct adreno_device *,
const char *, struct clk *);
+ void (*llc_configure_gpu_scid)(struct adreno_device *adreno_dev);
+ void (*llc_enable_overrides)(struct adreno_device *adreno_dev);
};
/**