From bdbb4d6e96bc9558e404bf709480ac2f7783c843 Mon Sep 17 00:00:00 2001 From: Shirish S Date: Fri, 5 Oct 2018 10:54:21 +0530 Subject: [PATCH] drm/amdgpu: remove the intterupt handling for the KIQ events MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit [Why] 1. we never submit IBs to the KIQ 2. there seems to be ~500ms delay during amdgpu resume spent in KIQ, hence pointing toward interrupts are not working correctly. [How] remove interrupt handling for KIQ. Signed-off-by: Shirish S Reviewed-by: Christian König i Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 59 --------------------- drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 75 --------------------------- 2 files changed, 134 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c index f9e0a21435f8..3f27a87bc930 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c @@ -2048,11 +2048,6 @@ static int gfx_v8_0_sw_init(void *handle) adev->gfx.mec.num_pipe_per_mec = 4; adev->gfx.mec.num_queue_per_pipe = 8; - /* KIQ event */ - r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_CP_INT_IB2, &adev->gfx.kiq.irq); - if (r) - return r; - /* EOP Event */ r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_CP_END_OF_PIPE, &adev->gfx.eop_irq); if (r) @@ -7018,52 +7013,6 @@ static int gfx_v8_0_sq_irq(struct amdgpu_device *adev, return 0; } -static int gfx_v8_0_kiq_set_interrupt_state(struct amdgpu_device *adev, - struct amdgpu_irq_src *src, - unsigned int type, - enum amdgpu_interrupt_state state) -{ - struct amdgpu_ring *ring = &(adev->gfx.kiq.ring); - - switch (type) { - case AMDGPU_CP_KIQ_IRQ_DRIVER0: - WREG32_FIELD(CPC_INT_CNTL, GENERIC2_INT_ENABLE, - state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1); - if (ring->me == 1) - WREG32_FIELD_OFFSET(CP_ME1_PIPE0_INT_CNTL, - ring->pipe, - GENERIC2_INT_ENABLE, - state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1); - else - WREG32_FIELD_OFFSET(CP_ME2_PIPE0_INT_CNTL, - ring->pipe, - GENERIC2_INT_ENABLE, - state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1); - break; - default: - BUG(); /* kiq only support GENERIC2_INT now */ - break; - } - return 0; -} - -static int gfx_v8_0_kiq_irq(struct amdgpu_device *adev, - struct amdgpu_irq_src *source, - struct amdgpu_iv_entry *entry) -{ - u8 me_id, pipe_id, queue_id; - struct amdgpu_ring *ring = &(adev->gfx.kiq.ring); - - me_id = (entry->ring_id & 0x0c) >> 2; - pipe_id = (entry->ring_id & 0x03) >> 0; - queue_id = (entry->ring_id & 0x70) >> 4; - DRM_DEBUG("IH: CPC GENERIC2_INT, me:%d, pipe:%d, queue:%d\n", - me_id, pipe_id, queue_id); - - amdgpu_fence_process(ring); - return 0; -} - static const struct amd_ip_funcs gfx_v8_0_ip_funcs = { .name = "gfx_v8_0", .early_init = gfx_v8_0_early_init, @@ -7214,11 +7163,6 @@ static const struct amdgpu_irq_src_funcs gfx_v8_0_priv_inst_irq_funcs = { .process = gfx_v8_0_priv_inst_irq, }; -static const struct amdgpu_irq_src_funcs gfx_v8_0_kiq_irq_funcs = { - .set = gfx_v8_0_kiq_set_interrupt_state, - .process = gfx_v8_0_kiq_irq, -}; - static const struct amdgpu_irq_src_funcs gfx_v8_0_cp_ecc_error_irq_funcs = { .set = gfx_v8_0_set_cp_ecc_int_state, .process = gfx_v8_0_cp_ecc_error_irq, @@ -7240,9 +7184,6 @@ static void gfx_v8_0_set_irq_funcs(struct amdgpu_device *adev) adev->gfx.priv_inst_irq.num_types = 1; adev->gfx.priv_inst_irq.funcs = &gfx_v8_0_priv_inst_irq_funcs; - adev->gfx.kiq.irq.num_types = AMDGPU_CP_KIQ_IRQ_LAST; - adev->gfx.kiq.irq.funcs = &gfx_v8_0_kiq_irq_funcs; - adev->gfx.cp_ecc_error_irq.num_types = 1; adev->gfx.cp_ecc_error_irq.funcs = &gfx_v8_0_cp_ecc_error_irq_funcs; diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c index 4b020cc4bea9..d6b50699d82d 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c @@ -1711,11 +1711,6 @@ static int gfx_v9_0_sw_init(void *handle) adev->gfx.mec.num_pipe_per_mec = 4; adev->gfx.mec.num_queue_per_pipe = 8; - /* KIQ event */ - r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_GRBM_CP, GFX_9_0__SRCID__CP_IB2_INTERRUPT_PKT, &adev->gfx.kiq.irq); - if (r) - return r; - /* EOP Event */ r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_GRBM_CP, GFX_9_0__SRCID__CP_EOP_INTERRUPT, &adev->gfx.eop_irq); if (r) @@ -4708,68 +4703,6 @@ static int gfx_v9_0_priv_inst_irq(struct amdgpu_device *adev, return 0; } -static int gfx_v9_0_kiq_set_interrupt_state(struct amdgpu_device *adev, - struct amdgpu_irq_src *src, - unsigned int type, - enum amdgpu_interrupt_state state) -{ - uint32_t tmp, target; - struct amdgpu_ring *ring = &(adev->gfx.kiq.ring); - - if (ring->me == 1) - target = SOC15_REG_OFFSET(GC, 0, mmCP_ME1_PIPE0_INT_CNTL); - else - target = SOC15_REG_OFFSET(GC, 0, mmCP_ME2_PIPE0_INT_CNTL); - target += ring->pipe; - - switch (type) { - case AMDGPU_CP_KIQ_IRQ_DRIVER0: - if (state == AMDGPU_IRQ_STATE_DISABLE) { - tmp = RREG32_SOC15(GC, 0, mmCPC_INT_CNTL); - tmp = REG_SET_FIELD(tmp, CPC_INT_CNTL, - GENERIC2_INT_ENABLE, 0); - WREG32_SOC15(GC, 0, mmCPC_INT_CNTL, tmp); - - tmp = RREG32(target); - tmp = REG_SET_FIELD(tmp, CP_ME2_PIPE0_INT_CNTL, - GENERIC2_INT_ENABLE, 0); - WREG32(target, tmp); - } else { - tmp = RREG32_SOC15(GC, 0, mmCPC_INT_CNTL); - tmp = REG_SET_FIELD(tmp, CPC_INT_CNTL, - GENERIC2_INT_ENABLE, 1); - WREG32_SOC15(GC, 0, mmCPC_INT_CNTL, tmp); - - tmp = RREG32(target); - tmp = REG_SET_FIELD(tmp, CP_ME2_PIPE0_INT_CNTL, - GENERIC2_INT_ENABLE, 1); - WREG32(target, tmp); - } - break; - default: - BUG(); /* kiq only support GENERIC2_INT now */ - break; - } - return 0; -} - -static int gfx_v9_0_kiq_irq(struct amdgpu_device *adev, - struct amdgpu_irq_src *source, - struct amdgpu_iv_entry *entry) -{ - u8 me_id, pipe_id, queue_id; - struct amdgpu_ring *ring = &(adev->gfx.kiq.ring); - - me_id = (entry->ring_id & 0x0c) >> 2; - pipe_id = (entry->ring_id & 0x03) >> 0; - queue_id = (entry->ring_id & 0x70) >> 4; - DRM_DEBUG("IH: CPC GENERIC2_INT, me:%d, pipe:%d, queue:%d\n", - me_id, pipe_id, queue_id); - - amdgpu_fence_process(ring); - return 0; -} - static const struct amd_ip_funcs gfx_v9_0_ip_funcs = { .name = "gfx_v9_0", .early_init = gfx_v9_0_early_init, @@ -4918,11 +4851,6 @@ static void gfx_v9_0_set_ring_funcs(struct amdgpu_device *adev) adev->gfx.compute_ring[i].funcs = &gfx_v9_0_ring_funcs_compute; } -static const struct amdgpu_irq_src_funcs gfx_v9_0_kiq_irq_funcs = { - .set = gfx_v9_0_kiq_set_interrupt_state, - .process = gfx_v9_0_kiq_irq, -}; - static const struct amdgpu_irq_src_funcs gfx_v9_0_eop_irq_funcs = { .set = gfx_v9_0_set_eop_interrupt_state, .process = gfx_v9_0_eop_irq, @@ -4948,9 +4876,6 @@ static void gfx_v9_0_set_irq_funcs(struct amdgpu_device *adev) adev->gfx.priv_inst_irq.num_types = 1; adev->gfx.priv_inst_irq.funcs = &gfx_v9_0_priv_inst_irq_funcs; - - adev->gfx.kiq.irq.num_types = AMDGPU_CP_KIQ_IRQ_LAST; - adev->gfx.kiq.irq.funcs = &gfx_v9_0_kiq_irq_funcs; } static void gfx_v9_0_set_rlc_funcs(struct amdgpu_device *adev) -- 2.30.2