Implement all the necessary stuff to get those extra rings working.
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 324 ++++++++++++++++++++++++++++-----
1 file changed, 274 insertions(+), 50 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
index 55384bad7a70..a362904d73f7 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
@@ -427,6 +427,57 @@ static void sdma_v4_0_ring_set_wptr(struct amdgpu_ring *ring)
}
}
+/**
+ * sdma_v4_0_page_ring_get_wptr - get the current write pointer
+ *
+ * @ring: amdgpu ring pointer
+ *
+ * Get the current wptr from the hardware (VEGA10+).
+ */
+static uint64_t sdma_v4_0_page_ring_get_wptr(struct amdgpu_ring *ring)
+{
+ struct amdgpu_device *adev = ring->adev;
+ u64 wptr;
+
+ if (ring->use_doorbell) {
+ /* XXX check if swapping is necessary on BE */
+ wptr = READ_ONCE(*((u64 *)&adev->wb.wb[ring->wptr_offs]));
+ } else {
+ wptr = RREG32_SDMA(ring->me, mmSDMA0_PAGE_RB_WPTR_HI);
+ wptr = wptr << 32;
+ wptr |= RREG32_SDMA(ring->me, mmSDMA0_PAGE_RB_WPTR);
+ }
+
+ return wptr >> 2;
+}
+
+/**
+ * sdma_v4_0_ring_set_wptr - commit the write pointer
+ *
+ * @ring: amdgpu ring pointer
+ *
+ * Write the wptr back to the hardware (VEGA10+).
+ */
+static void sdma_v4_0_page_ring_set_wptr(struct amdgpu_ring *ring)
+{
+ struct amdgpu_device *adev = ring->adev;
+
+ if (ring->use_doorbell) {
+ u64 *wb = (u64 *)&adev->wb.wb[ring->wptr_offs];
+
+ /* XXX check if swapping is necessary on BE */
+ WRITE_ONCE(*wb, (ring->wptr << 2));
+ WDOORBELL64(ring->doorbell_index, ring->wptr << 2);
+ } else {
+ uint64_t wptr = ring->wptr << 2;
+
+ WREG32_SDMA(ring->me, mmSDMA0_PAGE_RB_WPTR,
+ lower_32_bits(wptr));
+ WREG32_SDMA(ring->me, mmSDMA0_PAGE_RB_WPTR_HI,
+ upper_32_bits(wptr));
+ }
+}
+
static void sdma_v4_0_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
{
struct amdgpu_sdma_instance *sdma = amdgpu_get_sdma_instance(ring);
@@ -597,6 +648,35 @@ static void sdma_v4_0_rlc_stop(struct amdgpu_device *adev)
/* XXX todo */
}
+/**
+ * sdma_v4_0_page_stop - stop the page async dma engines
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Stop the page async dma ring buffers (VEGA10).
+ */
+static void sdma_v4_0_page_stop(struct amdgpu_device *adev)
+{
+ struct amdgpu_ring *sdma0 = &adev->sdma.instance[0].page;
+ struct amdgpu_ring *sdma1 = &adev->sdma.instance[1].page;
+ u32 rb_cntl, ib_cntl;
+ int i;
+
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ rb_cntl = RREG32_SDMA(i, mmSDMA0_PAGE_RB_CNTL);
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_PAGE_RB_CNTL,
+ RB_ENABLE, 0);
+ WREG32_SDMA(i, mmSDMA0_PAGE_RB_CNTL, rb_cntl);
+ ib_cntl = RREG32_SDMA(i, mmSDMA0_PAGE_IB_CNTL);
+ ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_PAGE_IB_CNTL,
+ IB_ENABLE, 0);
+ WREG32_SDMA(i, mmSDMA0_PAGE_IB_CNTL, ib_cntl);
+ }
+
+ sdma0->ready = false;
+ sdma1->ready = false;
+}
+
/**
* sdma_v_0_ctx_switch_enable - stop the async dma engines context switch
*
@@ -664,6 +744,7 @@ static void sdma_v4_0_enable(struct amdgpu_device *adev, bool enable)
if (enable == false) {
sdma_v4_0_gfx_stop(adev);
sdma_v4_0_rlc_stop(adev);
+ sdma_v4_0_page_stop(adev);
}
for (i = 0; i < adev->sdma.num_instances; i++) {
@@ -673,6 +754,23 @@ static void sdma_v4_0_enable(struct amdgpu_device *adev, bool enable)
}
}
+/**
+ * sdma_v4_0_rb_cntl - get parameters for rb_cntl
+ */
+static uint32_t sdma_v4_0_rb_cntl(struct amdgpu_ring *ring, uint32_t rb_cntl)
+{
+ /* Set ring buffer size in dwords */
+ uint32_t rb_bufsz = order_base_2(ring->ring_size / 4);
+
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz);
+#ifdef __BIG_ENDIAN
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1);
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL,
+ RPTR_WRITEBACK_SWAP_ENABLE, 1);
+#endif
+ return rb_cntl;
+}
+
/**
* sdma_v4_0_gfx_resume - setup and start the async dma engines
*
@@ -686,7 +784,6 @@ static void sdma_v4_0_gfx_resume(struct amdgpu_device *adev, unsigned int i)
{
struct amdgpu_ring *ring = &adev->sdma.instance[i].ring;
u32 rb_cntl, ib_cntl, wptr_poll_cntl;
- u32 rb_bufsz;
u32 wb_offset;
u32 doorbell;
u32 doorbell_offset;
@@ -694,15 +791,8 @@ static void sdma_v4_0_gfx_resume(struct amdgpu_device *adev, unsigned int i)
wb_offset = (ring->rptr_offs * 4);
- /* Set ring buffer size in dwords */
- rb_bufsz = order_base_2(ring->ring_size / 4);
rb_cntl = RREG32_SDMA(i, mmSDMA0_GFX_RB_CNTL);
- rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz);
-#ifdef __BIG_ENDIAN
- rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1);
- rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL,
- RPTR_WRITEBACK_SWAP_ENABLE, 1);
-#endif
+ rb_cntl = sdma_v4_0_rb_cntl(ring, rb_cntl);
WREG32_SDMA(i, mmSDMA0_GFX_RB_CNTL, rb_cntl);
/* Initialize the ring buffer's read and write pointers */
@@ -717,7 +807,8 @@ static void sdma_v4_0_gfx_resume(struct amdgpu_device *adev, unsigned int i)
WREG32_SDMA(i, mmSDMA0_GFX_RB_RPTR_ADDR_LO,
lower_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC);
- rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1);
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL,
+ RPTR_WRITEBACK_ENABLE, 1);
WREG32_SDMA(i, mmSDMA0_GFX_RB_BASE, ring->gpu_addr >> 8);
WREG32_SDMA(i, mmSDMA0_GFX_RB_BASE_HI, ring->gpu_addr >> 40);
@@ -730,13 +821,11 @@ static void sdma_v4_0_gfx_resume(struct amdgpu_device *adev, unsigned int i)
doorbell = RREG32_SDMA(i, mmSDMA0_GFX_DOORBELL);
doorbell_offset = RREG32_SDMA(i, mmSDMA0_GFX_DOORBELL_OFFSET);
- if (ring->use_doorbell) {
- doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 1);
- doorbell_offset = REG_SET_FIELD(doorbell_offset, SDMA0_GFX_DOORBELL_OFFSET,
- OFFSET, ring->doorbell_index);
- } else {
- doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 0);
- }
+ doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE,
+ ring->use_doorbell);
+ doorbell_offset = REG_SET_FIELD(doorbell_offset,
+ SDMA0_GFX_DOORBELL_OFFSET,
+ OFFSET, ring->doorbell_index);
WREG32_SDMA(i, mmSDMA0_GFX_DOORBELL, doorbell);
WREG32_SDMA(i, mmSDMA0_GFX_DOORBELL_OFFSET, doorbell_offset);
adev->nbio_funcs->sdma_doorbell_range(adev, i, ring->use_doorbell,
@@ -754,10 +843,9 @@ static void sdma_v4_0_gfx_resume(struct amdgpu_device *adev, unsigned int i)
WREG32_SDMA(i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_HI,
upper_32_bits(wptr_gpu_addr));
wptr_poll_cntl = RREG32_SDMA(i, mmSDMA0_GFX_RB_WPTR_POLL_CNTL);
- if (amdgpu_sriov_vf(adev))
- wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, SDMA0_GFX_RB_WPTR_POLL_CNTL, F32_POLL_ENABLE, 1);
- else
- wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, SDMA0_GFX_RB_WPTR_POLL_CNTL, F32_POLL_ENABLE, 0);
+ wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl,
+ SDMA0_GFX_RB_WPTR_POLL_CNTL,
+ F32_POLL_ENABLE, amdgpu_sriov_vf(adev));
WREG32_SDMA(i, mmSDMA0_GFX_RB_WPTR_POLL_CNTL, wptr_poll_cntl);
/* enable DMA RB */
@@ -775,6 +863,99 @@ static void sdma_v4_0_gfx_resume(struct amdgpu_device *adev, unsigned int i)
ring->ready = true;
}
+/**
+ * sdma_v4_0_page_resume - setup and start the async dma engines
+ *
+ * @adev: amdgpu_device pointer
+ * @i: instance to resume
+ *
+ * Set up the page DMA ring buffers and enable them (VEGA10).
+ * Returns 0 for success, error for failure.
+ */
+static void sdma_v4_0_page_resume(struct amdgpu_device *adev, unsigned int i)
+{
+ struct amdgpu_ring *ring = &adev->sdma.instance[i].page;
+ u32 rb_cntl, ib_cntl, wptr_poll_cntl;
+ u32 wb_offset;
+ u32 doorbell;
+ u32 doorbell_offset;
+ u64 wptr_gpu_addr;
+
+ wb_offset = (ring->rptr_offs * 4);
+
+ rb_cntl = RREG32_SDMA(i, mmSDMA0_PAGE_RB_CNTL);
+ rb_cntl = sdma_v4_0_rb_cntl(ring, rb_cntl);
+ WREG32_SDMA(i, mmSDMA0_PAGE_RB_CNTL, rb_cntl);
+
+ /* Initialize the ring buffer's read and write pointers */
+ WREG32_SDMA(i, mmSDMA0_PAGE_RB_RPTR, 0);
+ WREG32_SDMA(i, mmSDMA0_PAGE_RB_RPTR_HI, 0);
+ WREG32_SDMA(i, mmSDMA0_PAGE_RB_WPTR, 0);
+ WREG32_SDMA(i, mmSDMA0_PAGE_RB_WPTR_HI, 0);
+
+ /* set the wb address whether it's enabled or not */
+ WREG32_SDMA(i, mmSDMA0_PAGE_RB_RPTR_ADDR_HI,
+ upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF);
+ WREG32_SDMA(i, mmSDMA0_PAGE_RB_RPTR_ADDR_LO,
+ lower_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC);
+
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_PAGE_RB_CNTL,
+ RPTR_WRITEBACK_ENABLE, 1);
+
+ WREG32_SDMA(i, mmSDMA0_PAGE_RB_BASE, ring->gpu_addr >> 8);
+ WREG32_SDMA(i, mmSDMA0_PAGE_RB_BASE_HI, ring->gpu_addr >> 40);
+
+ ring->wptr = 0;
+
+ /* before programing wptr to a less value, need set minor_ptr_update first */
+ WREG32_SDMA(i, mmSDMA0_PAGE_MINOR_PTR_UPDATE, 1);
+
+ doorbell = RREG32_SDMA(i, mmSDMA0_PAGE_DOORBELL);
+ doorbell_offset = RREG32_SDMA(i, mmSDMA0_PAGE_DOORBELL_OFFSET);
+
+ doorbell = REG_SET_FIELD(doorbell, SDMA0_PAGE_DOORBELL, ENABLE,
+ ring->use_doorbell);
+ doorbell_offset = REG_SET_FIELD(doorbell_offset,
+ SDMA0_PAGE_DOORBELL_OFFSET,
+ OFFSET, ring->doorbell_index);
+ WREG32_SDMA(i, mmSDMA0_PAGE_DOORBELL, doorbell);
+ WREG32_SDMA(i, mmSDMA0_PAGE_DOORBELL_OFFSET, doorbell_offset);
+ /* TODO: enable doorbell support */
+ /*adev->nbio_funcs->sdma_doorbell_range(adev, i, ring->use_doorbell,
+ ring->doorbell_index);*/
+
+ sdma_v4_0_ring_set_wptr(ring);
+
+ /* set minor_ptr_update to 0 after wptr programed */
+ WREG32_SDMA(i, mmSDMA0_PAGE_MINOR_PTR_UPDATE, 0);
+
+ /* setup the wptr shadow polling */
+ wptr_gpu_addr = adev->wb.gpu_addr + (ring->wptr_offs * 4);
+ WREG32_SDMA(i, mmSDMA0_PAGE_RB_WPTR_POLL_ADDR_LO,
+ lower_32_bits(wptr_gpu_addr));
+ WREG32_SDMA(i, mmSDMA0_PAGE_RB_WPTR_POLL_ADDR_HI,
+ upper_32_bits(wptr_gpu_addr));
+ wptr_poll_cntl = RREG32_SDMA(i, mmSDMA0_PAGE_RB_WPTR_POLL_CNTL);
+ wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl,
+ SDMA0_PAGE_RB_WPTR_POLL_CNTL,
+ F32_POLL_ENABLE, amdgpu_sriov_vf(adev));
+ WREG32_SDMA(i, mmSDMA0_PAGE_RB_WPTR_POLL_CNTL, wptr_poll_cntl);
+
+ /* enable DMA RB */
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_PAGE_RB_CNTL, RB_ENABLE, 1);
+ WREG32_SDMA(i, mmSDMA0_PAGE_RB_CNTL, rb_cntl);
+
+ ib_cntl = RREG32_SDMA(i, mmSDMA0_PAGE_IB_CNTL);
+ ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_PAGE_IB_CNTL, IB_ENABLE, 1);
+#ifdef __BIG_ENDIAN
+ ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_PAGE_IB_CNTL, IB_SWAP_ENABLE, 1);
+#endif
+ /* enable DMA IBs */
+ WREG32_SDMA(i, mmSDMA0_PAGE_IB_CNTL, ib_cntl);
+
+ ring->ready = true;
+}
+
static void
sdma_v4_1_update_power_gating(struct amdgpu_device *adev, bool enable)
{
@@ -932,6 +1113,7 @@ static int sdma_v4_0_start(struct amdgpu_device *adev)
WREG32_SDMA(i, mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL, 0);
sdma_v4_0_gfx_resume(adev, i);
+ sdma_v4_0_page_resume(adev, i);
/* set utc l1 enable flag always to 1 */
temp = RREG32_SDMA(i, mmSDMA0_CNTL);
@@ -1337,6 +1519,19 @@ static int sdma_v4_0_sw_init(void *handle)
AMDGPU_SDMA_IRQ_TRAP1);
if (r)
return r;
+
+ ring = &adev->sdma.instance[i].page;
+ ring->ring_obj = NULL;
+ ring->use_doorbell = false;
+
+ sprintf(ring->name, "page%d", i);
+ r = amdgpu_ring_init(adev, ring, 1024,
+ &adev->sdma.trap_irq,
+ (i == 0) ?
+ AMDGPU_SDMA_IRQ_TRAP0 :
+ AMDGPU_SDMA_IRQ_TRAP1);
+ if (r)
+ return r;
}
return r;
@@ -1347,8 +1542,10 @@ static int sdma_v4_0_sw_fini(void *handle)
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int i;
- for (i = 0; i < adev->sdma.num_instances; i++)
+ for (i = 0; i < adev->sdma.num_instances; i++) {
amdgpu_ring_fini(&adev->sdma.instance[i].ring);
+ amdgpu_ring_fini(&adev->sdma.instance[i].page);
+ }
for (i = 0; i < adev->sdma.num_instances; i++) {
release_firmware(adev->sdma.instance[i].fw);
@@ -1462,39 +1659,32 @@ static int sdma_v4_0_process_trap_irq(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
struct amdgpu_iv_entry *entry)
{
+ uint32_t instance;
+
DRM_DEBUG("IH: SDMA trap\n");
switch (entry->client_id) {
case SOC15_IH_CLIENTID_SDMA0:
- switch (entry->ring_id) {
- case 0:
- amdgpu_fence_process(&adev->sdma.instance[0].ring);
- break;
- case 1:
- /* XXX compute */
- break;
- case 2:
- /* XXX compute */
- break;
- case 3:
- /* XXX page queue*/
- break;
- }
+ instance = 0;
break;
case SOC15_IH_CLIENTID_SDMA1:
- switch (entry->ring_id) {
- case 0:
- amdgpu_fence_process(&adev->sdma.instance[1].ring);
- break;
- case 1:
- /* XXX compute */
- break;
- case 2:
- /* XXX compute */
- break;
- case 3:
- /* XXX page queue*/
- break;
- }
+ instance = 1;
+ break;
+ default:
+ return 0;
+ }
+
+ switch (entry->ring_id) {
+ case 0:
+ amdgpu_fence_process(&adev->sdma.instance[instance].ring);
+ break;
+ case 1:
+ /* XXX compute */
+ break;
+ case 2:
+ /* XXX compute */
+ break;
+ case 3:
+ amdgpu_fence_process(&adev->sdma.instance[instance].page);
break;
}
return 0;
@@ -1722,6 +1912,38 @@ static const struct amdgpu_ring_funcs sdma_v4_0_ring_funcs = {
.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
};
+static const struct amdgpu_ring_funcs sdma_v4_0_page_ring_funcs = {
+ .type = AMDGPU_RING_TYPE_SDMA,
+ .align_mask = 0xf,
+ .nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP),
+ .support_64bit_ptrs = true,
+ .vmhub = AMDGPU_MMHUB,
+ .get_rptr = sdma_v4_0_ring_get_rptr,
+ .get_wptr = sdma_v4_0_page_ring_get_wptr,
+ .set_wptr = sdma_v4_0_page_ring_set_wptr,
+ .emit_frame_size =
+ 6 + /* sdma_v4_0_ring_emit_hdp_flush */
+ 3 + /* hdp invalidate */
+ 6 + /* sdma_v4_0_ring_emit_pipeline_sync */
+ /* sdma_v4_0_ring_emit_vm_flush */
+ SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
+ SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 6 +
+ 10 + 10 + 10, /* sdma_v4_0_ring_emit_fence x3 for user fence, vm fence */
+ .emit_ib_size = 7 + 6, /* sdma_v4_0_ring_emit_ib */
+ .emit_ib = sdma_v4_0_ring_emit_ib,
+ .emit_fence = sdma_v4_0_ring_emit_fence,
+ .emit_pipeline_sync = sdma_v4_0_ring_emit_pipeline_sync,
+ .emit_vm_flush = sdma_v4_0_ring_emit_vm_flush,
+ .emit_hdp_flush = sdma_v4_0_ring_emit_hdp_flush,
+ .test_ring = sdma_v4_0_ring_test_ring,
+ .test_ib = sdma_v4_0_ring_test_ib,
+ .insert_nop = sdma_v4_0_ring_insert_nop,
+ .pad_ib = sdma_v4_0_ring_pad_ib,
+ .emit_wreg = sdma_v4_0_ring_emit_wreg,
+ .emit_reg_wait = sdma_v4_0_ring_emit_reg_wait,
+ .emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
+};
+
static void sdma_v4_0_set_ring_funcs(struct amdgpu_device *adev)
{
int i;
@@ -1729,6 +1951,8 @@ static void sdma_v4_0_set_ring_funcs(struct amdgpu_device *adev)
for (i = 0; i < adev->sdma.num_instances; i++) {
adev->sdma.instance[i].ring.funcs = &sdma_v4_0_ring_funcs;
adev->sdma.instance[i].ring.me = i;
+ adev->sdma.instance[i].page.funcs = &sdma_v4_0_page_ring_funcs;
+ adev->sdma.instance[i].page.me = i;
}
}
--
2.14.1
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