diff options
author | Jesse.zhang@amd.com <Jesse.zhang@amd.com> | 2025-04-14 16:06:51 +0800 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2025-04-21 10:57:01 -0400 |
commit | 47454f2dc0bf6774c8dbe7226bcf50ba24a788a8 (patch) | |
tree | c77f2fa4ebb775208b12963d7197345542823f85 | |
parent | e56d4bf57fabe009494e9b81ba64e21ebe7d35c2 (diff) |
drm/amdgpu: Register the new sdma function pointers for sdma_v5_2
Register stop/start/soft_reset queue functions for SDMA IP versions v5.2.
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jesse Zhang <jesse.zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c | 94 |
1 files changed, 56 insertions, 38 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c b/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c index 964f12afac9e..fc95c2875ba5 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c @@ -113,6 +113,8 @@ static void sdma_v5_2_set_ring_funcs(struct amdgpu_device *adev); static void sdma_v5_2_set_buffer_funcs(struct amdgpu_device *adev); static void sdma_v5_2_set_vm_pte_funcs(struct amdgpu_device *adev); static void sdma_v5_2_set_irq_funcs(struct amdgpu_device *adev); +static int sdma_v5_2_stop_queue(struct amdgpu_ring *ring); +static int sdma_v5_2_restore_queue(struct amdgpu_ring *ring); static u32 sdma_v5_2_get_reg_offset(struct amdgpu_device *adev, u32 instance, u32 internal_offset) { @@ -759,37 +761,49 @@ static int sdma_v5_2_load_microcode(struct amdgpu_device *adev) return 0; } -static int sdma_v5_2_soft_reset(struct amdgpu_ip_block *ip_block) +static int sdma_v5_2_soft_reset_engine(struct amdgpu_device *adev, u32 instance_id) { - struct amdgpu_device *adev = ip_block->adev; u32 grbm_soft_reset; u32 tmp; - int i; - for (i = 0; i < adev->sdma.num_instances; i++) { - grbm_soft_reset = REG_SET_FIELD(0, - GRBM_SOFT_RESET, SOFT_RESET_SDMA0, - 1); - grbm_soft_reset <<= i; + grbm_soft_reset = REG_SET_FIELD(0, + GRBM_SOFT_RESET, SOFT_RESET_SDMA0, + 1); + grbm_soft_reset <<= instance_id; - tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET); - tmp |= grbm_soft_reset; - DRM_DEBUG("GRBM_SOFT_RESET=0x%08X\n", tmp); - WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, tmp); - tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET); + tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET); + tmp |= grbm_soft_reset; + DRM_DEBUG("GRBM_SOFT_RESET=0x%08X\n", tmp); + WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, tmp); + tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET); - udelay(50); + udelay(50); - tmp &= ~grbm_soft_reset; - WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, tmp); - tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET); + tmp &= ~grbm_soft_reset; + WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, tmp); + tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET); + return 0; +} +static int sdma_v5_2_soft_reset(struct amdgpu_ip_block *ip_block) +{ + struct amdgpu_device *adev = ip_block->adev; + int i; + + for (i = 0; i < adev->sdma.num_instances; i++) { + sdma_v5_2_soft_reset_engine(adev, i); udelay(50); } return 0; } +static const struct amdgpu_sdma_funcs sdma_v5_2_sdma_funcs = { + .stop_kernel_queue = &sdma_v5_2_stop_queue, + .start_kernel_queue = &sdma_v5_2_restore_queue, + .soft_reset_kernel_queue = &sdma_v5_2_soft_reset_engine, +}; + /** * sdma_v5_2_start - setup and start the async dma engines * @@ -1302,6 +1316,7 @@ static int sdma_v5_2_sw_init(struct amdgpu_ip_block *ip_block) } for (i = 0; i < adev->sdma.num_instances; i++) { + adev->sdma.instance[i].funcs = &sdma_v5_2_sdma_funcs; ring = &adev->sdma.instance[i].ring; ring->ring_obj = NULL; ring->use_doorbell = true; @@ -1437,8 +1452,16 @@ static int sdma_v5_2_wait_for_idle(struct amdgpu_ip_block *ip_block) static int sdma_v5_2_reset_queue(struct amdgpu_ring *ring, unsigned int vmid) { struct amdgpu_device *adev = ring->adev; - int i, j, r; - u32 rb_cntl, ib_cntl, f32_cntl, freeze, cntl, preempt, soft_reset, stat1_reg; + u32 inst_id = ring->me; + + return amdgpu_sdma_reset_engine(adev, inst_id); +} + +static int sdma_v5_2_stop_queue(struct amdgpu_ring *ring) +{ + u32 rb_cntl, ib_cntl, f32_cntl, freeze, cntl, stat1_reg; + struct amdgpu_device *adev = ring->adev; + int i, j, r = 0; if (amdgpu_sriov_vf(adev)) return -EINVAL; @@ -1495,31 +1518,26 @@ static int sdma_v5_2_reset_queue(struct amdgpu_ring *ring, unsigned int vmid) cntl = REG_SET_FIELD(cntl, SDMA0_CNTL, UTC_L1_ENABLE, 0); WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL), cntl); - /* soft reset SDMA_GFX_PREEMPT.IB_PREEMPT = 0 mmGRBM_SOFT_RESET.SOFT_RESET_SDMA0/1 = 1 */ - preempt = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_PREEMPT)); - preempt = REG_SET_FIELD(preempt, SDMA0_GFX_PREEMPT, IB_PREEMPT, 0); - WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_PREEMPT), preempt); - - soft_reset = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET); - soft_reset |= 1 << GRBM_SOFT_RESET__SOFT_RESET_SDMA0__SHIFT << i; - - - WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, soft_reset); - - udelay(50); - - soft_reset &= ~(1 << GRBM_SOFT_RESET__SOFT_RESET_SDMA0__SHIFT << i); +err0: + amdgpu_gfx_rlc_exit_safe_mode(adev, 0); + return r; +} - WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, soft_reset); +static int sdma_v5_2_restore_queue(struct amdgpu_ring *ring) +{ + struct amdgpu_device *adev = ring->adev; + u32 inst_id = ring->me; + u32 freeze; + int r; + amdgpu_gfx_rlc_enter_safe_mode(adev, 0); /* unfreeze and unhalt */ - freeze = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_FREEZE)); + freeze = RREG32(sdma_v5_2_get_reg_offset(adev, inst_id, mmSDMA0_FREEZE)); freeze = REG_SET_FIELD(freeze, SDMA0_FREEZE, FREEZE, 0); - WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_FREEZE), freeze); + WREG32(sdma_v5_2_get_reg_offset(adev, inst_id, mmSDMA0_FREEZE), freeze); - r = sdma_v5_2_gfx_resume_instance(adev, i, true); + r = sdma_v5_2_gfx_resume_instance(adev, inst_id, true); -err0: amdgpu_gfx_rlc_exit_safe_mode(adev, 0); return r; } |