diff options
| author | Hareesh Gundu <hareeshg@codeaurora.org> | 2017-08-22 18:55:50 +0530 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2017-09-08 02:02:40 -0700 |
| commit | 273f50746c513190a4d24d61d7585b0282ae83ef (patch) | |
| tree | 89cbf48292003c64bae1b45e590f4ec9bc27a5f2 /drivers/gpu/msm/adreno_ringbuffer.c | |
| parent | cb8f9c4da75aaf6cf869ade763661704999b871a (diff) | |
msm: kgsl: Do not allocate scratch memory for A3xx
A3xx device gets the ring buffer read pointer directly
from the GPU registers. So don’t allocate scratch memory
which can’t be used for A3xx GPU devices.
Change-Id: I95016dfc169b9fee74e978f5560592740f34515e
Signed-off-by: Hareesh Gundu <hareeshg@codeaurora.org>
Diffstat (limited to 'drivers/gpu/msm/adreno_ringbuffer.c')
| -rw-r--r-- | drivers/gpu/msm/adreno_ringbuffer.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/gpu/msm/adreno_ringbuffer.c b/drivers/gpu/msm/adreno_ringbuffer.c index ddc53edce3c1..9735303d7bd6 100644 --- a/drivers/gpu/msm/adreno_ringbuffer.c +++ b/drivers/gpu/msm/adreno_ringbuffer.c @@ -203,8 +203,9 @@ int adreno_ringbuffer_start(struct adreno_device *adreno_dev, FOR_EACH_RINGBUFFER(adreno_dev, rb, i) { kgsl_sharedmem_set(device, &(rb->buffer_desc), 0, 0xAA, KGSL_RB_SIZE); - kgsl_sharedmem_writel(device, &device->scratch, - SCRATCH_RPTR_OFFSET(rb->id), 0); + if (!adreno_is_a3xx(adreno_dev)) + kgsl_sharedmem_writel(device, &device->scratch, + SCRATCH_RPTR_OFFSET(rb->id), 0); rb->wptr = 0; rb->_wptr = 0; rb->wptr_preempt_end = 0xFFFFFFFF; @@ -265,9 +266,16 @@ static int _adreno_ringbuffer_probe(struct adreno_device *adreno_dev, int adreno_ringbuffer_probe(struct adreno_device *adreno_dev, bool nopreempt) { - int status = 0; + struct kgsl_device *device = KGSL_DEVICE(adreno_dev); struct adreno_gpudev *gpudev = ADRENO_GPU_DEVICE(adreno_dev); - int i; + int i, status; + + if (!adreno_is_a3xx(adreno_dev)) { + status = kgsl_allocate_global(device, &device->scratch, + PAGE_SIZE, 0, 0, "scratch"); + if (status != 0) + return status; + } if (nopreempt == false && ADRENO_FEATURE(adreno_dev, ADRENO_PREEMPTION)) adreno_dev->num_ringbuffers = gpudev->num_prio_levels; @@ -303,9 +311,13 @@ static void _adreno_ringbuffer_close(struct adreno_device *adreno_dev, void adreno_ringbuffer_close(struct adreno_device *adreno_dev) { + struct kgsl_device *device = KGSL_DEVICE(adreno_dev); struct adreno_ringbuffer *rb; int i; + if (!adreno_is_a3xx(adreno_dev)) + kgsl_free_global(device, &device->scratch); + FOR_EACH_RINGBUFFER(adreno_dev, rb, i) _adreno_ringbuffer_close(adreno_dev, rb); } |