From e56d4bf57fabe009494e9b81ba64e21ebe7d35c2 Mon Sep 17 00:00:00 2001 From: "Jesse.zhang@amd.com" Date: Mon, 14 Apr 2025 16:05:33 +0800 Subject: [PATCH 3279/5403] drm/amdgpu/: drm/amdgpu: Register the new sdma function pointers for sdma_v5_0 Register stop/start/soft_reset queue functions for SDMA IP versions v5.0. Suggested-by: Alex Deucher Signed-off-by: Jesse Zhang Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c | 78 +++++++++++++++++++------- 1 file changed, 57 insertions(+), 21 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c index e1348b6d9c6a..48ee6dc1e3dc 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c @@ -112,6 +112,8 @@ static void sdma_v5_0_set_ring_funcs(struct amdgpu_device *adev); static void sdma_v5_0_set_buffer_funcs(struct amdgpu_device *adev); static void sdma_v5_0_set_vm_pte_funcs(struct amdgpu_device *adev); static void sdma_v5_0_set_irq_funcs(struct amdgpu_device *adev); +static int sdma_v5_0_stop_queue(struct amdgpu_ring *ring); +static int sdma_v5_0_restore_queue(struct amdgpu_ring *ring); static const struct soc15_reg_golden golden_settings_sdma_5[] = { SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_CHICKEN_BITS, 0xffbf1f0f, 0x03ab0107), @@ -1323,6 +1325,36 @@ static void sdma_v5_0_ring_emit_reg_write_reg_wait(struct amdgpu_ring *ring, amdgpu_ring_emit_reg_wait(ring, reg1, mask, mask); } +static int sdma_v5_0_soft_reset_engine(struct amdgpu_device *adev, u32 instance_id) +{ + u32 grbm_soft_reset; + u32 tmp; + + 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); + + udelay(50); + + tmp &= ~grbm_soft_reset; + WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, tmp); + tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET); + return 0; +} + +static const struct amdgpu_sdma_funcs sdma_v5_0_sdma_funcs = { + .stop_kernel_queue = &sdma_v5_0_stop_queue, + .start_kernel_queue = &sdma_v5_0_restore_queue, + .soft_reset_kernel_queue = &sdma_v5_0_soft_reset_engine, +}; + static int sdma_v5_0_early_init(struct amdgpu_ip_block *ip_block) { struct amdgpu_device *adev = ip_block->adev; @@ -1365,6 +1397,7 @@ static int sdma_v5_0_sw_init(struct amdgpu_ip_block *ip_block) return r; for (i = 0; i < adev->sdma.num_instances; i++) { + adev->sdma.instance[i].funcs = &sdma_v5_0_sdma_funcs; ring = &adev->sdma.instance[i].ring; ring->ring_obj = NULL; ring->use_doorbell = true; @@ -1506,8 +1539,16 @@ static int sdma_v5_0_soft_reset(struct amdgpu_ip_block *ip_block) static int sdma_v5_0_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_0_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; @@ -1562,30 +1603,25 @@ static int sdma_v5_0_reset_queue(struct amdgpu_ring *ring, unsigned int vmid) cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_CNTL)); cntl = REG_SET_FIELD(cntl, SDMA0_CNTL, UTC_L1_ENABLE, 0); WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_CNTL), cntl); +err0: + amdgpu_gfx_rlc_exit_safe_mode(adev, 0); + return r; +} - /* soft reset SDMA_GFX_PREEMPT.IB_PREEMPT = 0 mmGRBM_SOFT_RESET.SOFT_RESET_SDMA0/1 = 1 */ - preempt = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_PREEMPT)); - preempt = REG_SET_FIELD(preempt, SDMA0_GFX_PREEMPT, IB_PREEMPT, 0); - WREG32(sdma_v5_0_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); - WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, soft_reset); +static int sdma_v5_0_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*/ - freeze = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_FREEZE)); + freeze = RREG32(sdma_v5_0_get_reg_offset(adev, inst_id, mmSDMA0_FREEZE)); freeze = REG_SET_FIELD(freeze, SDMA0_FREEZE, FREEZE, 0); - WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_FREEZE), freeze); + WREG32(sdma_v5_0_get_reg_offset(adev, inst_id, mmSDMA0_FREEZE), freeze); - r = sdma_v5_0_gfx_resume_instance(adev, i, true); - -err0: + r = sdma_v5_0_gfx_resume_instance(adev, inst_id, true); amdgpu_gfx_rlc_exit_safe_mode(adev, 0); return r; } -- 2.54.0