Commit edff0e28 authored by Jammy Zhou's avatar Jammy Zhou Committed by Alex Deucher

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: default avatarJammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 4b2f7e2c
......@@ -343,6 +343,8 @@ struct amdgpu_ring_funcs {
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 @@ int amdgpu_ib_ring_tests(struct amdgpu_device *adev);
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);
......
......@@ -131,6 +131,21 @@ int amdgpu_ring_lock(struct amdgpu_ring *ring, unsigned ndw)
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 @@ int amdgpu_ring_lock(struct amdgpu_ring *ring, unsigned ndw)
*/
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);
}
......
......@@ -1305,6 +1305,7 @@ static const struct amdgpu_ring_funcs cik_sdma_ring_funcs = {
.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)
......
......@@ -5598,6 +5598,7 @@ static const struct amdgpu_ring_funcs gfx_v7_0_ring_funcs_gfx = {
.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 @@ static const struct amdgpu_ring_funcs gfx_v7_0_ring_funcs_compute = {
.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)
......
......@@ -4378,6 +4378,7 @@ static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_gfx = {
.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 @@ static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_compute = {
.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)
......
......@@ -1316,6 +1316,7 @@ static const struct amdgpu_ring_funcs sdma_v2_4_ring_funcs = {
.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)
......
......@@ -1440,6 +1440,7 @@ static const struct amdgpu_ring_funcs sdma_v3_0_ring_funcs = {
.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)
......
......@@ -886,6 +886,7 @@ static const struct amdgpu_ring_funcs uvd_v4_2_ring_funcs = {
.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)
......
......@@ -825,6 +825,7 @@ static const struct amdgpu_ring_funcs uvd_v5_0_ring_funcs = {
.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)
......
......@@ -805,6 +805,7 @@ static const struct amdgpu_ring_funcs uvd_v6_0_ring_funcs = {
.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)
......
......@@ -643,6 +643,7 @@ static const struct amdgpu_ring_funcs vce_v2_0_ring_funcs = {
.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)
......
......@@ -608,6 +608,7 @@ static const struct amdgpu_ring_funcs vce_v3_0_ring_funcs = {
.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)
......
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