drm/amdgpu: remove more of the ring backup code

Not used anymore.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

7 files changed, 4 insertions, 101 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index ac686e514e01..814f12cc7f08 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -776,8 +776,6 @@ struct amdgpu_ring {
         struct amdgpu_bo        *ring_obj;
         volatile uint32_t       *ring;
         unsigned                rptr_offs;
-        u64                     next_rptr_gpu_addr;
-        volatile u32            *next_rptr_cpu_addr;
         unsigned                wptr;
         unsigned                wptr_old;
         unsigned                ring_size;
@@ -796,7 +794,6 @@ struct amdgpu_ring {
         u32                     doorbell_index;
         bool                    use_doorbell;
         unsigned                wptr_offs;
-        unsigned                next_rptr_offs;
         unsigned                fence_offs;
         uint64_t                current_ctx;
         enum amdgpu_ring_type   type;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index 71e146180e8e..3b885e3e9b56 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -190,14 +190,6 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
                 return r;
         }
 
-        r = amdgpu_wb_get(adev, &ring->next_rptr_offs);
-        if (r) {
-                dev_err(adev->dev, "(%d) ring next_rptr wb alloc failed\n", r);
-                return r;
-        }
-        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);
@@ -280,7 +272,6 @@ void amdgpu_ring_fini(struct amdgpu_ring *ring)
         amdgpu_wb_free(ring->adev, ring->fence_offs);
         amdgpu_wb_free(ring->adev, ring->rptr_offs);
         amdgpu_wb_free(ring->adev, ring->wptr_offs);
-        amdgpu_wb_free(ring->adev, ring->next_rptr_offs);
 
         if (ring_obj) {
                 r = amdgpu_bo_reserve(ring_obj, false);
diff --git a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
index 9dc4e24e31e7..46aca16a40aa 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
@@ -224,17 +224,6 @@ static void cik_sdma_ring_emit_ib(struct amdgpu_ring *ring,
                                   unsigned vm_id, bool ctx_switch)
 {
         u32 extra_bits = vm_id & 0xf;
-        u32 next_rptr = ring->wptr + 5;
-
-        while ((next_rptr & 7) != 4)
-                next_rptr++;
-
-        next_rptr += 4;
-        amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0));
-        amdgpu_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
-        amdgpu_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xffffffff);
-        amdgpu_ring_write(ring, 1); /* number of DWs to follow */
-        amdgpu_ring_write(ring, next_rptr);
 
         /* IB packet must end on a 8 DW boundary */
         cik_sdma_ring_insert_nop(ring, (12 - (ring->wptr & 7)) % 8);
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index 1306a3b741a5..f6bd9465dbdc 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -2056,17 +2056,6 @@ static void gfx_v7_0_ring_emit_ib_gfx(struct amdgpu_ring *ring,
                                       unsigned vm_id, bool ctx_switch)
 {
         u32 header, control = 0;
-        u32 next_rptr = ring->wptr + 5;
-
-        if (ctx_switch)
-                next_rptr += 2;
-
-        next_rptr += 4;
-        amdgpu_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
-        amdgpu_ring_write(ring, WRITE_DATA_DST_SEL(5) | WR_CONFIRM);
-        amdgpu_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
-        amdgpu_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xffffffff);
-        amdgpu_ring_write(ring, next_rptr);
 
         /* insert SWITCH_BUFFER packet before first IB in the ring frame */
         if (ctx_switch) {
@@ -2095,22 +2084,9 @@ static void gfx_v7_0_ring_emit_ib_compute(struct amdgpu_ring *ring,
                                           struct amdgpu_ib *ib,
                                           unsigned vm_id, bool ctx_switch)
 {
-        u32 header, control = 0;
-        u32 next_rptr = ring->wptr + 5;
-
-        control |= INDIRECT_BUFFER_VALID;
-        next_rptr += 4;
-        amdgpu_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
-        amdgpu_ring_write(ring, WRITE_DATA_DST_SEL(5) | WR_CONFIRM);
-        amdgpu_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
-        amdgpu_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xffffffff);
-        amdgpu_ring_write(ring, next_rptr);
-
-        header = PACKET3(PACKET3_INDIRECT_BUFFER, 2);
+        u32 control = INDIRECT_BUFFER_VALID | ib->length_dw | (vm_id << 24);
 
-        control |= ib->length_dw | (vm_id << 24);
-
-        amdgpu_ring_write(ring, header);
+        amdgpu_ring_write(ring, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
         amdgpu_ring_write(ring,
 #ifdef __BIG_ENDIAN
                                           (2 << 0) |
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 892a41022d8f..c30b6ac25d89 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -5929,17 +5929,6 @@ static void gfx_v8_0_ring_emit_ib_gfx(struct amdgpu_ring *ring,
                                       unsigned vm_id, bool ctx_switch)
 {
         u32 header, control = 0;
-        u32 next_rptr = ring->wptr + 5;
-
-        if (ctx_switch)
-                next_rptr += 2;
-
-        next_rptr += 4;
-        amdgpu_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
-        amdgpu_ring_write(ring, WRITE_DATA_DST_SEL(5) | WR_CONFIRM);
-        amdgpu_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
-        amdgpu_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xffffffff);
-        amdgpu_ring_write(ring, next_rptr);
 
         /* insert SWITCH_BUFFER packet before first IB in the ring frame */
         if (ctx_switch) {
@@ -5968,23 +5957,9 @@ static void gfx_v8_0_ring_emit_ib_compute(struct amdgpu_ring *ring,
                                           struct amdgpu_ib *ib,
                                           unsigned vm_id, bool ctx_switch)
 {
-        u32 header, control = 0;
-        u32 next_rptr = ring->wptr + 5;
-
-        control |= INDIRECT_BUFFER_VALID;
+        u32 control = INDIRECT_BUFFER_VALID | ib->length_dw | (vm_id << 24);
 
-        next_rptr += 4;
-        amdgpu_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
-        amdgpu_ring_write(ring, WRITE_DATA_DST_SEL(5) | WR_CONFIRM);
-        amdgpu_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
-        amdgpu_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xffffffff);
-        amdgpu_ring_write(ring, next_rptr);
-
-        header = PACKET3(PACKET3_INDIRECT_BUFFER, 2);
-
-        control |= ib->length_dw | (vm_id << 24);
-
-        amdgpu_ring_write(ring, header);
+        amdgpu_ring_write(ring, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
         amdgpu_ring_write(ring,
 #ifdef __BIG_ENDIAN
                                           (2 << 0) |
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c b/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
index b556bd0a8797..ac3730a6e49f 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
@@ -255,19 +255,6 @@ static void sdma_v2_4_ring_emit_ib(struct amdgpu_ring *ring,
                                    unsigned vm_id, bool ctx_switch)
 {
         u32 vmid = vm_id & 0xf;
-        u32 next_rptr = ring->wptr + 5;
-
-        while ((next_rptr & 7) != 2)
-                next_rptr++;
-
-        next_rptr += 6;
-
-        amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
-                          SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
-        amdgpu_ring_write(ring, lower_32_bits(ring->next_rptr_gpu_addr) & 0xfffffffc);
-        amdgpu_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr));
-        amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1));
-        amdgpu_ring_write(ring, next_rptr);
 
         /* IB packet must end on a 8 DW boundary */
         sdma_v2_4_ring_insert_nop(ring, (10 - (ring->wptr & 7)) % 8);
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
index 532ea88da66a..f00db6f4c04c 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
@@ -415,18 +415,6 @@ static void sdma_v3_0_ring_emit_ib(struct amdgpu_ring *ring,
                                    unsigned vm_id, bool ctx_switch)
 {
         u32 vmid = vm_id & 0xf;
-        u32 next_rptr = ring->wptr + 5;
-
-        while ((next_rptr & 7) != 2)
-                next_rptr++;
-        next_rptr += 6;
-
-        amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
-                          SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
-        amdgpu_ring_write(ring, lower_32_bits(ring->next_rptr_gpu_addr) & 0xfffffffc);
-        amdgpu_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr));
-        amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1));
-        amdgpu_ring_write(ring, next_rptr);
 
         /* IB packet must end on a 8 DW boundary */
         sdma_v3_0_ring_insert_nop(ring, (10 - (ring->wptr & 7)) % 8);