Extracts the resume sequence for per sdma instance from sdma_v7_0_gfx_resume.
This function can be used in start or restart scenarios of specific instances.
Signed-off-by: Jesse Zhang <jesse.zh...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c | 259 ++++++++++++++-----------
1 file changed, 141 insertions(+), 118 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c
b/drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c
index 10ddf2c9e1fd..8cc8eaff0680 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c
@@ -491,162 +491,185 @@ static void sdma_v7_0_enable(struct amdgpu_device
*adev, bool enable)
}
/**
- * sdma_v7_0_gfx_resume - setup and start the async dma engines
+ * sdma_v7_0_gfx_resume_instance - start/restart a certain sdma engine
*
* @adev: amdgpu_device pointer
+ * @i: instance
+ * @restore: used to restore wptr when restart
*
- * Set up the gfx DMA ring buffers and enable them.
- * Returns 0 for success, error for failure.
+ * Set up the gfx DMA ring buffers and enable them. On restart, we will
restore wptr and rptr.
+ * Return 0 for success.
*/
-static int sdma_v7_0_gfx_resume(struct amdgpu_device *adev)
+static int sdma_v7_0_gfx_resume_instance(struct amdgpu_device *adev, int i,
bool restore)
{
struct amdgpu_ring *ring;
u32 rb_cntl, ib_cntl;
u32 rb_bufsz;
u32 doorbell;
u32 doorbell_offset;
- u32 tmp;
+ u32 temp;
u64 wptr_gpu_addr;
- int i, r;
-
- for (i = 0; i < adev->sdma.num_instances; i++) {
- ring = &adev->sdma.instance[i].ring;
+ int r;
- //if (!amdgpu_sriov_vf(adev))
- // WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_SEM_WAIT_FAIL_TIMER_CNTL), 0);
+ ring = &adev->sdma.instance[i].ring;
- /* Set ring buffer size in dwords */
- rb_bufsz = order_base_2(ring->ring_size / 4);
- rb_cntl = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_CNTL));
- rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, RB_SIZE,
rb_bufsz);
+ /* Set ring buffer size in dwords */
+ rb_bufsz = order_base_2(ring->ring_size / 4);
+ rb_cntl = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_CNTL));
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, RB_SIZE,
rb_bufsz);
#ifdef __BIG_ENDIAN
- rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL,
RB_SWAP_ENABLE, 1);
- rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL,
- RPTR_WRITEBACK_SWAP_ENABLE, 1);
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, RB_SWAP_ENABLE,
1);
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL,
+ RPTR_WRITEBACK_SWAP_ENABLE, 1);
#endif
- rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, RB_PRIV,
1);
- WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_CNTL), rb_cntl);
-
- /* Initialize the ring buffer's read and write pointers */
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, RB_PRIV, 1);
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_CNTL), rb_cntl);
+
+ /* Initialize the ring buffer's read and write pointers */
+ if (restore) {
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_RPTR), lower_32_bits(ring->wptr << 2));
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_RPTR_HI), upper_32_bits(ring->wptr << 2));
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_WPTR), lower_32_bits(ring->wptr << 2));
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_WPTR_HI), upper_32_bits(ring->wptr << 2));
+ } else {
WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_RPTR), 0);
WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_RPTR_HI), 0);
WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_WPTR), 0);
WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_WPTR_HI), 0);
+ }
+ /* setup the wptr shadow polling */
+ wptr_gpu_addr = ring->wptr_gpu_addr;
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_WPTR_POLL_ADDR_LO),
+ lower_32_bits(wptr_gpu_addr));
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_WPTR_POLL_ADDR_HI),
+ upper_32_bits(wptr_gpu_addr));
+
+ /* set the wb address whether it's enabled or not */
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_RPTR_ADDR_HI),
+ upper_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFF);
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_RPTR_ADDR_LO),
+ lower_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFC);
+
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL,
RPTR_WRITEBACK_ENABLE, 1);
+ if (amdgpu_sriov_vf(adev))
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL,
WPTR_POLL_ENABLE, 1);
+ else
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL,
WPTR_POLL_ENABLE, 0);
- /* setup the wptr shadow polling */
- wptr_gpu_addr = ring->wptr_gpu_addr;
- WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_WPTR_POLL_ADDR_LO),
- lower_32_bits(wptr_gpu_addr));
- WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_WPTR_POLL_ADDR_HI),
- upper_32_bits(wptr_gpu_addr));
-
- /* set the wb address whether it's enabled or not */
- WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_RPTR_ADDR_HI),
- upper_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFF);
- WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_RPTR_ADDR_LO),
- lower_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFC);
-
- rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL,
RPTR_WRITEBACK_ENABLE, 1);
- if (amdgpu_sriov_vf(adev))
- rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL,
WPTR_POLL_ENABLE, 1);
- else
- rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL,
WPTR_POLL_ENABLE, 0);
- rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL,
MCU_WPTR_POLL_ENABLE, 1);
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL,
MCU_WPTR_POLL_ENABLE, 1);
- WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_BASE), ring->gpu_addr >> 8);
- WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_BASE_HI), ring->gpu_addr >> 40);
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_BASE), ring->gpu_addr >> 8);
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_BASE_HI), ring->gpu_addr >> 40);
+ if (!restore)
ring->wptr = 0;
- /* before programing wptr to a less value, need set
minor_ptr_update first */
- WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_MINOR_PTR_UPDATE), 1);
+ /* before programing wptr to a less value, need set minor_ptr_update
first */
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_MINOR_PTR_UPDATE), 1);
- if (!amdgpu_sriov_vf(adev)) { /* only bare-metal use register
write for wptr */
- WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_WPTR), lower_32_bits(ring->wptr) << 2);
- WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_WPTR_HI), upper_32_bits(ring->wptr) << 2);
- }
+ if (!amdgpu_sriov_vf(adev)) { /* only bare-metal use register write for
wptr */
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_WPTR), lower_32_bits(ring->wptr) << 2);
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_WPTR_HI), upper_32_bits(ring->wptr) << 2);
+ }
- doorbell = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev,
i, regSDMA0_QUEUE0_DOORBELL));
- doorbell_offset = RREG32_SOC15_IP(GC,
sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_DOORBELL_OFFSET));
+ doorbell = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_DOORBELL));
+ doorbell_offset = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_DOORBELL_OFFSET));
- if (ring->use_doorbell) {
- doorbell = REG_SET_FIELD(doorbell,
SDMA0_QUEUE0_DOORBELL, ENABLE, 1);
- doorbell_offset = REG_SET_FIELD(doorbell_offset,
SDMA0_QUEUE0_DOORBELL_OFFSET,
- OFFSET, ring->doorbell_index);
- } else {
- doorbell = REG_SET_FIELD(doorbell,
SDMA0_QUEUE0_DOORBELL, ENABLE, 0);
- }
- WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_DOORBELL), doorbell);
- WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_DOORBELL_OFFSET), doorbell_offset);
-
- if (i == 0)
- adev->nbio.funcs->sdma_doorbell_range(adev, i,
ring->use_doorbell,
- ring->doorbell_index,
-
adev->doorbell_index.sdma_doorbell_range * adev->sdma.num_instances);
-
- if (amdgpu_sriov_vf(adev))
- sdma_v7_0_ring_set_wptr(ring);
-
- /* set minor_ptr_update to 0 after wptr programed */
- WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_MINOR_PTR_UPDATE), 0);
-
- /* Set up sdma hang watchdog */
- tmp = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_WATCHDOG_CNTL));
- /* 100ms per unit */
- tmp = REG_SET_FIELD(tmp, SDMA0_WATCHDOG_CNTL, QUEUE_HANG_COUNT,
- max(adev->usec_timeout/100000, 1));
- WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_WATCHDOG_CNTL), tmp);
-
- /* Set up RESP_MODE to non-copy addresses */
- tmp = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_UTCL1_CNTL));
- tmp = REG_SET_FIELD(tmp, SDMA0_UTCL1_CNTL, RESP_MODE, 3);
- tmp = REG_SET_FIELD(tmp, SDMA0_UTCL1_CNTL, REDO_DELAY, 9);
- WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_UTCL1_CNTL), tmp);
-
- /* program default cache read and write policy */
- tmp = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_UTCL1_PAGE));
- /* clean read policy and write policy bits */
- tmp &= 0xFF0FFF;
- tmp |= ((CACHE_READ_POLICY_L2__DEFAULT << 12) |
- (CACHE_WRITE_POLICY_L2__DEFAULT << 14));
- WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_UTCL1_PAGE), tmp);
-
- if (!amdgpu_sriov_vf(adev)) {
- /* unhalt engine */
- tmp = RREG32_SOC15_IP(GC,
sdma_v7_0_get_reg_offset(adev, i, regSDMA0_MCU_CNTL));
- tmp = REG_SET_FIELD(tmp, SDMA0_MCU_CNTL, HALT, 0);
- tmp = REG_SET_FIELD(tmp, SDMA0_MCU_CNTL, RESET, 0);
- WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_MCU_CNTL), tmp);
- }
+ if (ring->use_doorbell) {
+ doorbell = REG_SET_FIELD(doorbell, SDMA0_QUEUE0_DOORBELL,
ENABLE, 1);
+ doorbell_offset = REG_SET_FIELD(doorbell_offset,
SDMA0_QUEUE0_DOORBELL_OFFSET,
+ OFFSET, ring->doorbell_index);
+ } else {
+ doorbell = REG_SET_FIELD(doorbell, SDMA0_QUEUE0_DOORBELL,
ENABLE, 0);
+ }
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_DOORBELL), doorbell);
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_DOORBELL_OFFSET), doorbell_offset);
- /* enable DMA RB */
- rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL,
RB_ENABLE, 1);
- WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_CNTL), rb_cntl);
+ if (i == 0)
+ adev->nbio.funcs->sdma_doorbell_range(adev, i,
ring->use_doorbell,
+ ring->doorbell_index,
+
adev->doorbell_index.sdma_doorbell_range * adev->sdma.num_instances);
- ib_cntl = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_IB_CNTL));
- ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_QUEUE0_IB_CNTL,
IB_ENABLE, 1);
+ if (amdgpu_sriov_vf(adev))
+ sdma_v7_0_ring_set_wptr(ring);
+
+ /* set minor_ptr_update to 0 after wptr programed */
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_MINOR_PTR_UPDATE), 0);
+
+ /* Set up sdma hang watchdog */
+ temp = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_WATCHDOG_CNTL));
+ /* 100ms per unit */
+ temp = REG_SET_FIELD(temp, SDMA0_WATCHDOG_CNTL, QUEUE_HANG_COUNT,
+ max(adev->usec_timeout/100000, 1));
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_WATCHDOG_CNTL), temp);
+
+ /* Set up RESP_MODE to non-copy addresses */
+ temp = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_UTCL1_CNTL));
+ temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, RESP_MODE, 3);
+ temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, REDO_DELAY, 9);
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_UTCL1_CNTL), temp);
+
+ /* program default cache read and write policy */
+ temp = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_UTCL1_PAGE));
+ /* clean read policy and write policy bits */
+ temp &= 0xFF0FFF;
+ temp |= ((CACHE_READ_POLICY_L2__DEFAULT << 12) |
+ (CACHE_WRITE_POLICY_L2__DEFAULT << 14));
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_UTCL1_PAGE), temp);
+
+ if (!amdgpu_sriov_vf(adev)) {
+ /* unhalt engine */
+ temp = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_MCU_CNTL));
+ temp = REG_SET_FIELD(temp, SDMA0_MCU_CNTL, HALT, 0);
+ temp = REG_SET_FIELD(temp, SDMA0_MCU_CNTL, RESET, 0);
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_MCU_CNTL), temp);
+ }
+
+ /* enable DMA RB */
+ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, RB_ENABLE, 1);
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_RB_CNTL), rb_cntl);
+
+ ib_cntl = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_IB_CNTL));
+ ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_QUEUE0_IB_CNTL, IB_ENABLE, 1);
#ifdef __BIG_ENDIAN
- ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_QUEUE0_IB_CNTL,
IB_SWAP_ENABLE, 1);
+ ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_QUEUE0_IB_CNTL, IB_SWAP_ENABLE,
1);
#endif
- /* enable DMA IBs */
- WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_IB_CNTL), ib_cntl);
+ /* enable DMA IBs */
+ WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i,
regSDMA0_QUEUE0_IB_CNTL), ib_cntl);
+ ring->sched.ready = true;
- ring->sched.ready = true;
+ if (amdgpu_sriov_vf(adev)) { /* bare-metal sequence doesn't need below
to lines */
+ sdma_v7_0_ctx_switch_enable(adev, true);
+ sdma_v7_0_enable(adev, true);
+ }
- if (amdgpu_sriov_vf(adev)) { /* bare-metal sequence doesn't
need below to lines */
- sdma_v7_0_ctx_switch_enable(adev, true);
- sdma_v7_0_enable(adev, true);
- }
+ r = amdgpu_ring_test_helper(ring);
+ if (r)
+ ring->sched.ready = false;
- r = amdgpu_ring_test_helper(ring);
- if (r) {
- ring->sched.ready = false;
- return r;
- }
+ return r;
+}
+/**
+ * sdma_v7_0_gfx_resume - setup and start the async dma engines
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Set up the gfx DMA ring buffers and enable them.
+ * Returns 0 for success, error for failure.
+ */
+static int sdma_v7_0_gfx_resume(struct amdgpu_device *adev)
+{
+ int i, r;
+
+ for (i = 0; i < adev->sdma.num_instances; i++) {
+ r = sdma_v7_0_gfx_resume_instance(adev, i, false);
+ if (r)
+ return r;
}
return 0;
+
}
/**
--
2.25.1
