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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c211
1 files changed, 211 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c
new file mode 100644
index 000000000000..5727f00afc8e
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c
@@ -0,0 +1,211 @@
+/*
+ * Copyright 2019 Advanced Micro Devices, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ */
+
+#include "amdgpu.h"
+#include "amdgpu_jpeg.h"
+#include "amdgpu_pm.h"
+#include "soc15d.h"
+#include "soc15_common.h"
+
+#define JPEG_IDLE_TIMEOUT msecs_to_jiffies(1000)
+
+static void amdgpu_jpeg_idle_work_handler(struct work_struct *work);
+
+int amdgpu_jpeg_sw_init(struct amdgpu_device *adev)
+{
+ INIT_DELAYED_WORK(&adev->jpeg.idle_work, amdgpu_jpeg_idle_work_handler);
+
+ return 0;
+}
+
+int amdgpu_jpeg_sw_fini(struct amdgpu_device *adev)
+{
+ int i;
+
+ cancel_delayed_work_sync(&adev->jpeg.idle_work);
+
+ for (i = 0; i < adev->jpeg.num_jpeg_inst; ++i) {
+ if (adev->jpeg.harvest_config & (1 << i))
+ continue;
+
+ amdgpu_ring_fini(&adev->jpeg.inst[i].ring_dec);
+ }
+
+ return 0;
+}
+
+int amdgpu_jpeg_suspend(struct amdgpu_device *adev)
+{
+ cancel_delayed_work_sync(&adev->jpeg.idle_work);
+
+ return 0;
+}
+
+int amdgpu_jpeg_resume(struct amdgpu_device *adev)
+{
+ return 0;
+}
+
+static void amdgpu_jpeg_idle_work_handler(struct work_struct *work)
+{
+ struct amdgpu_device *adev =
+ container_of(work, struct amdgpu_device, jpeg.idle_work.work);
+ unsigned int fences = 0;
+ unsigned int i;
+
+ for (i = 0; i < adev->jpeg.num_jpeg_inst; ++i) {
+ if (adev->jpeg.harvest_config & (1 << i))
+ continue;
+
+ fences += amdgpu_fence_count_emitted(&adev->jpeg.inst[i].ring_dec);
+ }
+
+ if (fences == 0)
+ amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_JPEG,
+ AMD_PG_STATE_GATE);
+ else
+ schedule_delayed_work(&adev->jpeg.idle_work, JPEG_IDLE_TIMEOUT);
+}
+
+void amdgpu_jpeg_ring_begin_use(struct amdgpu_ring *ring)
+{
+ struct amdgpu_device *adev = ring->adev;
+ bool set_clocks = !cancel_delayed_work_sync(&adev->jpeg.idle_work);
+
+ if (set_clocks)
+ amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_JPEG,
+ AMD_PG_STATE_UNGATE);
+}
+
+void amdgpu_jpeg_ring_end_use(struct amdgpu_ring *ring)
+{
+ schedule_delayed_work(&ring->adev->jpeg.idle_work, JPEG_IDLE_TIMEOUT);
+}
+
+int amdgpu_jpeg_dec_ring_test_ring(struct amdgpu_ring *ring)
+{
+ struct amdgpu_device *adev = ring->adev;
+ uint32_t tmp = 0;
+ unsigned i;
+ int r;
+
+ WREG32(adev->jpeg.inst[ring->me].external.jpeg_pitch, 0xCAFEDEAD);
+ r = amdgpu_ring_alloc(ring, 3);
+ if (r)
+ return r;
+
+ amdgpu_ring_write(ring, PACKET0(adev->jpeg.internal.jpeg_pitch, 0));
+ amdgpu_ring_write(ring, 0xDEADBEEF);
+ amdgpu_ring_commit(ring);
+
+ for (i = 0; i < adev->usec_timeout; i++) {
+ tmp = RREG32(adev->jpeg.inst[ring->me].external.jpeg_pitch);
+ if (tmp == 0xDEADBEEF)
+ break;
+ udelay(1);
+ }
+
+ if (i >= adev->usec_timeout)
+ r = -ETIMEDOUT;
+
+ return r;
+}
+
+static int amdgpu_jpeg_dec_set_reg(struct amdgpu_ring *ring, uint32_t handle,
+ struct dma_fence **fence)
+{
+ struct amdgpu_device *adev = ring->adev;
+ struct amdgpu_job *job;
+ struct amdgpu_ib *ib;
+ struct dma_fence *f = NULL;
+ const unsigned ib_size_dw = 16;
+ int i, r;
+
+ r = amdgpu_job_alloc_with_ib(ring->adev, ib_size_dw * 4, &job);
+ if (r)
+ return r;
+
+ ib = &job->ibs[0];
+
+ ib->ptr[0] = PACKETJ(adev->jpeg.internal.jpeg_pitch, 0, 0, PACKETJ_TYPE0);
+ ib->ptr[1] = 0xDEADBEEF;
+ for (i = 2; i < 16; i += 2) {
+ ib->ptr[i] = PACKETJ(0, 0, 0, PACKETJ_TYPE6);
+ ib->ptr[i+1] = 0;
+ }
+ ib->length_dw = 16;
+
+ r = amdgpu_job_submit_direct(job, ring, &f);
+ if (r)
+ goto err;
+
+ if (fence)
+ *fence = dma_fence_get(f);
+ dma_fence_put(f);
+
+ return 0;
+
+err:
+ amdgpu_job_free(job);
+ return r;
+}
+
+int amdgpu_jpeg_dec_ring_test_ib(struct amdgpu_ring *ring, long timeout)
+{
+ struct amdgpu_device *adev = ring->adev;
+ uint32_t tmp = 0;
+ unsigned i;
+ struct dma_fence *fence = NULL;
+ long r = 0;
+
+ r = amdgpu_jpeg_dec_set_reg(ring, 1, &fence);
+ if (r)
+ goto error;
+
+ r = dma_fence_wait_timeout(fence, false, timeout);
+ if (r == 0) {
+ r = -ETIMEDOUT;
+ goto error;
+ } else if (r < 0) {
+ goto error;
+ } else {
+ r = 0;
+ }
+
+ for (i = 0; i < adev->usec_timeout; i++) {
+ tmp = RREG32(adev->jpeg.inst[ring->me].external.jpeg_pitch);
+ if (tmp == 0xDEADBEEF)
+ break;
+ udelay(1);
+ }
+
+ if (i >= adev->usec_timeout)
+ r = -ETIMEDOUT;
+
+ dma_fence_put(fence);
+error:
+ return r;
+}