drm/amdgpu: add insert_nop ring func and default implementation
The insert_nop function is added to amdgpu_ring_funcs structure as
well as the default implementation
Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 057e7ef..668939a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -343,6 +343,8 @@
int (*test_ring)(struct amdgpu_ring *ring);
int (*test_ib)(struct amdgpu_ring *ring);
bool (*is_lockup)(struct amdgpu_ring *ring);
+ /* insert NOP packets */
+ void (*insert_nop)(struct amdgpu_ring *ring, uint32_t count);
};
/*
@@ -1217,6 +1219,7 @@
void amdgpu_ring_free_size(struct amdgpu_ring *ring);
int amdgpu_ring_alloc(struct amdgpu_ring *ring, unsigned ndw);
int amdgpu_ring_lock(struct amdgpu_ring *ring, unsigned ndw);
+void amdgpu_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count);
void amdgpu_ring_commit(struct amdgpu_ring *ring);
void amdgpu_ring_unlock_commit(struct amdgpu_ring *ring);
void amdgpu_ring_undo(struct amdgpu_ring *ring);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index 7d442c5..9bec914 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -131,6 +131,21 @@
return 0;
}
+/** amdgpu_ring_insert_nop - insert NOP packets
+ *
+ * @ring: amdgpu_ring structure holding ring information
+ * @count: the number of NOP packets to insert
+ *
+ * This is the generic insert_nop function for rings except SDMA
+ */
+void amdgpu_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
+{
+ int i;
+
+ for (i = 0; i < count; i++)
+ amdgpu_ring_write(ring, ring->nop);
+}
+
/**
* amdgpu_ring_commit - tell the GPU to execute the new
* commands on the ring buffer
@@ -143,10 +158,13 @@
*/
void amdgpu_ring_commit(struct amdgpu_ring *ring)
{
+ uint32_t count;
+
/* We pad to match fetch size */
- while (ring->wptr & ring->align_mask) {
- amdgpu_ring_write(ring, ring->nop);
- }
+ count = ring->align_mask + 1 - (ring->wptr & ring->align_mask);
+ count %= ring->align_mask + 1;
+ ring->funcs->insert_nop(ring, count);
+
mb();
amdgpu_ring_set_wptr(ring);
}
diff --git a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
index cc909c9..f0661b2 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
@@ -1305,6 +1305,7 @@
.test_ring = cik_sdma_ring_test_ring,
.test_ib = cik_sdma_ring_test_ib,
.is_lockup = cik_sdma_ring_is_lockup,
+ .insert_nop = amdgpu_ring_insert_nop,
};
static void cik_sdma_set_ring_funcs(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index fab7b23..517a68f 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -5598,6 +5598,7 @@
.test_ring = gfx_v7_0_ring_test_ring,
.test_ib = gfx_v7_0_ring_test_ib,
.is_lockup = gfx_v7_0_ring_is_lockup,
+ .insert_nop = amdgpu_ring_insert_nop,
};
static const struct amdgpu_ring_funcs gfx_v7_0_ring_funcs_compute = {
@@ -5614,6 +5615,7 @@
.test_ring = gfx_v7_0_ring_test_ring,
.test_ib = gfx_v7_0_ring_test_ib,
.is_lockup = gfx_v7_0_ring_is_lockup,
+ .insert_nop = amdgpu_ring_insert_nop,
};
static void gfx_v7_0_set_ring_funcs(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 818edb3..956a358 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -4378,6 +4378,7 @@
.test_ring = gfx_v8_0_ring_test_ring,
.test_ib = gfx_v8_0_ring_test_ib,
.is_lockup = gfx_v8_0_ring_is_lockup,
+ .insert_nop = amdgpu_ring_insert_nop,
};
static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_compute = {
@@ -4394,6 +4395,7 @@
.test_ring = gfx_v8_0_ring_test_ring,
.test_ib = gfx_v8_0_ring_test_ib,
.is_lockup = gfx_v8_0_ring_is_lockup,
+ .insert_nop = amdgpu_ring_insert_nop,
};
static void gfx_v8_0_set_ring_funcs(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c b/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
index 2457bf3..1b913bc 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
@@ -1316,6 +1316,7 @@
.test_ring = sdma_v2_4_ring_test_ring,
.test_ib = sdma_v2_4_ring_test_ib,
.is_lockup = sdma_v2_4_ring_is_lockup,
+ .insert_nop = amdgpu_ring_insert_nop,
};
static void sdma_v2_4_set_ring_funcs(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
index 70b2f03..a7550a8 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
@@ -1440,6 +1440,7 @@
.test_ring = sdma_v3_0_ring_test_ring,
.test_ib = sdma_v3_0_ring_test_ib,
.is_lockup = sdma_v3_0_ring_is_lockup,
+ .insert_nop = amdgpu_ring_insert_nop,
};
static void sdma_v3_0_set_ring_funcs(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c b/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
index 9ac383b..5fac5da 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
@@ -886,6 +886,7 @@
.test_ring = uvd_v4_2_ring_test_ring,
.test_ib = uvd_v4_2_ring_test_ib,
.is_lockup = amdgpu_ring_test_lockup,
+ .insert_nop = amdgpu_ring_insert_nop,
};
static void uvd_v4_2_set_ring_funcs(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
index de4b3f5..2d5c59c 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
@@ -825,6 +825,7 @@
.test_ring = uvd_v5_0_ring_test_ring,
.test_ib = uvd_v5_0_ring_test_ib,
.is_lockup = amdgpu_ring_test_lockup,
+ .insert_nop = amdgpu_ring_insert_nop,
};
static void uvd_v5_0_set_ring_funcs(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
index 66c9758..d9f553f 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
@@ -805,6 +805,7 @@
.test_ring = uvd_v6_0_ring_test_ring,
.test_ib = uvd_v6_0_ring_test_ib,
.is_lockup = amdgpu_ring_test_lockup,
+ .insert_nop = amdgpu_ring_insert_nop,
};
static void uvd_v6_0_set_ring_funcs(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c
index 303d961d..cd16df5 100644
--- a/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c
@@ -643,6 +643,7 @@
.test_ring = amdgpu_vce_ring_test_ring,
.test_ib = amdgpu_vce_ring_test_ib,
.is_lockup = amdgpu_ring_test_lockup,
+ .insert_nop = amdgpu_ring_insert_nop,
};
static void vce_v2_0_set_ring_funcs(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
index 4349658..5642b8e 100644
--- a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
@@ -608,6 +608,7 @@
.test_ring = amdgpu_vce_ring_test_ring,
.test_ib = amdgpu_vce_ring_test_ib,
.is_lockup = amdgpu_ring_test_lockup,
+ .insert_nop = amdgpu_ring_insert_nop,
};
static void vce_v3_0_set_ring_funcs(struct amdgpu_device *adev)