drm/msm: Remove memptrs->wptr

memptrs->wptr seems to be unused. Remove it to avoid
confusing the upcoming preemption code.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>

drivers/gpu/drm/msm/adreno/adreno_gpu.c

@@ -77,7 +77,6 @@ int adreno_hw_init(struct msm_gpu *gpu)
 	/* reset completed fence seqno: */
 	adreno_gpu->memptrs->fence = gpu->fctx->completed_fence;
 	adreno_gpu->memptrs->rptr  = 0;
-	adreno_gpu->memptrs->wptr  = 0;
 
 	/* Setup REG_CP_RB_CNTL: */
 	adreno_gpu_write(adreno_gpu, REG_ADRENO_CP_RB_CNTL,
@@ -258,7 +257,6 @@ void adreno_show(struct msm_gpu *gpu, struct seq_file *m)
 	seq_printf(m, "fence:    %d/%d\n", adreno_gpu->memptrs->fence,
 			gpu->fctx->last_fence);
 	seq_printf(m, "rptr:     %d\n", get_rptr(adreno_gpu));
-	seq_printf(m, "wptr:     %d\n", adreno_gpu->memptrs->wptr);
 	seq_printf(m, "rb wptr:  %d\n", get_wptr(gpu->rb));
 
 	/* dump these out in a form that can be parsed by demsm: */
@@ -294,7 +292,6 @@ void adreno_dump_info(struct msm_gpu *gpu)
 	printk("fence:    %d/%d\n", adreno_gpu->memptrs->fence,
 			gpu->fctx->last_fence);
 	printk("rptr:     %d\n", get_rptr(adreno_gpu));
-	printk("wptr:     %d\n", adreno_gpu->memptrs->wptr);
 	printk("rb wptr:  %d\n", get_wptr(gpu->rb));
 }
 

drivers/gpu/drm/msm/adreno/adreno_gpu.h

@@ -87,7 +87,6 @@ const struct adreno_info *adreno_info(struct adreno_rev rev);
 
 struct adreno_rbmemptrs {
 	volatile uint32_t rptr;
-	volatile uint32_t wptr;
 	volatile uint32_t fence;
 };