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From f616a670bf0b24301261c88f8480f62be6a6c523 Mon Sep 17 00:00:00 2001
From: Monk Liu <monk.liu@amd.com>
Date: Thu, 14 Jan 2016 18:08:16 +0800
Subject: [PATCH 0443/1110] drm/amdgpu: support cond exec
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Signed-off-by: Monk Liu <monk.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 3 +++
drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 3 +++
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 9 +++++++++
3 files changed, 15 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index ce1638c..c0b7731 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -787,6 +787,9 @@ struct amdgpu_ring {
struct amdgpu_ctx *current_ctx;
enum amdgpu_ring_type type;
char name[16];
+ unsigned cond_exe_offs;
+ u64 cond_exe_gpu_addr;
+ volatile u32 *cond_exe_cpu_addr;
};
/*
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
index 58b051c..52b63e3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
@@ -159,6 +159,9 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
amdgpu_ring_emit_hdp_flush(ring);
}
+ /* always set cond_exec_polling to CONTINUE */
+ *ring->cond_exe_cpu_addr = 1;
+
old_ctx = ring->current_ctx;
for (i = 0; i < num_ibs; ++i) {
ib = &ibs[i];
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index 972eed2..dd79243 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -267,6 +267,15 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
}
ring->next_rptr_gpu_addr = adev->wb.gpu_addr + (ring->next_rptr_offs * 4);
ring->next_rptr_cpu_addr = &adev->wb.wb[ring->next_rptr_offs];
+
+ r = amdgpu_wb_get(adev, &ring->cond_exe_offs);
+ if (r) {
+ dev_err(adev->dev, "(%d) ring cond_exec_polling wb alloc failed\n", r);
+ return r;
+ }
+ ring->cond_exe_gpu_addr = adev->wb.gpu_addr + (ring->cond_exe_offs * 4);
+ ring->cond_exe_cpu_addr = &adev->wb.wb[ring->cond_exe_offs];
+
spin_lock_init(&ring->fence_lock);
r = amdgpu_fence_driver_start_ring(ring, irq_src, irq_type);
if (r) {
--
2.7.4
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