[PATCH 3/8] drm/amdgpu: Change GC(SDMA) register access from MMIO to RLCG
Peng Ju Zhou
PengJu.Zhou at amd.com
Thu Apr 8 05:32:31 UTC 2021
In SRIOV environment, KMD should access GC registers
with RLCG if GC indirect access flag enabled.
Change GC register access from MMIO to RLCG.
Signed-off-by: Peng Ju Zhou <PengJu.Zhou at amd.com>
---
drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c | 78 ++++++++++++++------------
1 file changed, 42 insertions(+), 36 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c
index 920fc6d4a127..f72faa132419 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c
@@ -324,9 +324,9 @@ static uint64_t sdma_v5_0_ring_get_wptr(struct amdgpu_ring *ring)
wptr = READ_ONCE(*((u64 *)&adev->wb.wb[ring->wptr_offs]));
DRM_DEBUG("wptr/doorbell before shift == 0x%016llx\n", wptr);
} else {
- wptr = RREG32(sdma_v5_0_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR_HI));
+ wptr = RREG32_RLC(sdma_v5_0_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR_HI));
wptr = wptr << 32;
- wptr |= RREG32(sdma_v5_0_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR));
+ wptr |= RREG32_RLC(sdma_v5_0_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR));
DRM_DEBUG("wptr before shift [%i] wptr == 0x%016llx\n", ring->me, wptr);
}
@@ -367,9 +367,9 @@ static void sdma_v5_0_ring_set_wptr(struct amdgpu_ring *ring)
lower_32_bits(ring->wptr << 2),
ring->me,
upper_32_bits(ring->wptr << 2));
- WREG32(sdma_v5_0_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR),
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR),
lower_32_bits(ring->wptr << 2));
- WREG32(sdma_v5_0_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR_HI),
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR_HI),
upper_32_bits(ring->wptr << 2));
}
}
@@ -530,12 +530,12 @@ static void sdma_v5_0_gfx_stop(struct amdgpu_device *adev)
amdgpu_ttm_set_buffer_funcs_status(adev, false);
for (i = 0; i < adev->sdma.num_instances; i++) {
- rb_cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL));
+ rb_cntl = RREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL));
rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0);
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
- ib_cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL));
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
+ ib_cntl = RREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL));
ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0);
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl);
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl);
}
}
@@ -596,11 +596,11 @@ static void sdma_v5_0_ctx_switch_enable(struct amdgpu_device *adev, bool enable)
}
if (enable && amdgpu_sdma_phase_quantum) {
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_PHASE0_QUANTUM),
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_PHASE0_QUANTUM),
phase_quantum);
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_PHASE1_QUANTUM),
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_PHASE1_QUANTUM),
phase_quantum);
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_PHASE2_QUANTUM),
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_PHASE2_QUANTUM),
phase_quantum);
}
if (!amdgpu_sriov_vf(adev))
@@ -667,58 +667,63 @@ static int sdma_v5_0_gfx_resume(struct amdgpu_device *adev)
/* Set ring buffer size in dwords */
rb_bufsz = order_base_2(ring->ring_size / 4);
- rb_cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL));
+ rb_cntl = RREG32_RLC(sdma_v5_0_get_reg_offset(adev, 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
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
/* Initialize the ring buffer's read and write pointers */
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR), 0);
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_HI), 0);
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), 0);
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), 0);
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR), 0);
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_HI), 0);
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), 0);
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), 0);
/* setup the wptr shadow polling */
wptr_gpu_addr = adev->wb.gpu_addr + (ring->wptr_offs * 4);
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_LO),
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_LO),
lower_32_bits(wptr_gpu_addr));
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_HI),
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_HI),
upper_32_bits(wptr_gpu_addr));
- wptr_poll_cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i,
+ wptr_poll_cntl = RREG32_RLC(sdma_v5_0_get_reg_offset(adev, i,
mmSDMA0_GFX_RB_WPTR_POLL_CNTL));
wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl,
SDMA0_GFX_RB_WPTR_POLL_CNTL,
F32_POLL_ENABLE, 1);
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_CNTL),
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_CNTL),
wptr_poll_cntl);
/* set the wb address whether it's enabled or not */
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_HI),
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_HI),
upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF);
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_LO),
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, 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);
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE), ring->gpu_addr >> 8);
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE_HI), ring->gpu_addr >> 40);
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE),
+ ring->gpu_addr >> 8);
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_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_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 1);
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 1);
if (!amdgpu_sriov_vf(adev)) { /* only bare-metal use register write for wptr */
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), lower_32_bits(ring->wptr) << 2);
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), upper_32_bits(ring->wptr) << 2);
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR),
+ lower_32_bits(ring->wptr) << 2);
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI),
+ upper_32_bits(ring->wptr) << 2);
}
- doorbell = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL));
- doorbell_offset = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET));
+ doorbell = RREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL));
+ doorbell_offset = RREG32_RLC(sdma_v5_0_get_reg_offset(adev, i,
+ mmSDMA0_GFX_DOORBELL_OFFSET));
if (ring->use_doorbell) {
doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 1);
@@ -727,8 +732,9 @@ static int sdma_v5_0_gfx_resume(struct amdgpu_device *adev)
} else {
doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 0);
}
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL), doorbell);
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET), doorbell_offset);
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL), doorbell);
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET),
+ doorbell_offset);
adev->nbio.funcs->sdma_doorbell_range(adev, i, ring->use_doorbell,
ring->doorbell_index, 20);
@@ -737,7 +743,7 @@ static int sdma_v5_0_gfx_resume(struct amdgpu_device *adev)
sdma_v5_0_ring_set_wptr(ring);
/* set minor_ptr_update to 0 after wptr programed */
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 0);
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 0);
if (!amdgpu_sriov_vf(adev)) {
/* set utc l1 enable flag always to 1 */
@@ -771,15 +777,15 @@ static int sdma_v5_0_gfx_resume(struct amdgpu_device *adev)
/* enable DMA RB */
rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1);
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
- ib_cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL));
+ ib_cntl = RREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL));
ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 1);
#ifdef __BIG_ENDIAN
ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_SWAP_ENABLE, 1);
#endif
/* enable DMA IBs */
- WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl);
+ WREG32_RLC(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl);
ring->sched.ready = true;
--
2.17.1
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