diff options
Diffstat (limited to 'drivers/gpu/msm/adreno.c')
| -rw-r--r-- | drivers/gpu/msm/adreno.c | 36 |
1 files changed, 28 insertions, 8 deletions
diff --git a/drivers/gpu/msm/adreno.c b/drivers/gpu/msm/adreno.c index 26e341a876e8..28980ec1e07d 100644 --- a/drivers/gpu/msm/adreno.c +++ b/drivers/gpu/msm/adreno.c @@ -171,6 +171,30 @@ void adreno_writereg64(struct adreno_device *adreno_dev, } /** + * adreno_get_rptr() - Get the current ringbuffer read pointer + * @rb: Pointer the ringbuffer to query + * + * Get the latest rptr + */ +unsigned int adreno_get_rptr(struct adreno_ringbuffer *rb) +{ + struct adreno_device *adreno_dev = ADRENO_RB_DEVICE(rb); + unsigned int rptr = 0; + + if (adreno_is_a3xx(adreno_dev)) + adreno_readreg(adreno_dev, ADRENO_REG_CP_RB_RPTR, + &rptr); + else { + struct kgsl_device *device = KGSL_DEVICE(adreno_dev); + + kgsl_sharedmem_readl(&device->scratch, &rptr, + SCRATCH_RPTR_OFFSET(rb->id)); + } + + return rptr; +} + +/** * adreno_of_read_property() - Adreno read property * @node: Device node * @@ -2149,8 +2173,6 @@ bool adreno_isidle(struct kgsl_device *device) if (!kgsl_state_is_awake(device)) return true; - adreno_get_rptr(ADRENO_CURRENT_RINGBUFFER(adreno_dev)); - /* * wptr is updated when we add commands to ringbuffer, add a barrier * to make sure updated wptr is compared to rptr @@ -2161,15 +2183,13 @@ bool adreno_isidle(struct kgsl_device *device) * ringbuffer is truly idle when all ringbuffers read and write * pointers are equal */ + FOR_EACH_RINGBUFFER(adreno_dev, rb, i) { - if (rb->rptr != rb->wptr) - break; + if (!adreno_rb_empty(rb)) + return false; } - if (i == adreno_dev->num_ringbuffers) - return adreno_hw_isidle(adreno_dev); - - return false; + return adreno_hw_isidle(adreno_dev); } /** |