From af71911de5996b7921c2440b13493f345d42beb9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Wed, 26 Sep 2018 14:15:21 +0200 Subject: [PATCH 1113/2940] drm/amdgpu: add support for self irq on Vega10 v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This finally enables processing of ring 1 & 2. v2: fix copy&paste error Signed-off-by: Christian König Reviewed-by: Alex Deucher Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/vega10_ih.c | 80 ++++++++++++++++++++++++-- 1 file changed, 74 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/vega10_ih.c b/drivers/gpu/drm/amd/amdgpu/vega10_ih.c index 7553d91d10e3..6d1f804277f8 100644 --- a/drivers/gpu/drm/amd/amdgpu/vega10_ih.c +++ b/drivers/gpu/drm/amd/amdgpu/vega10_ih.c @@ -270,7 +270,7 @@ static void vega10_ih_irq_disable(struct amdgpu_device *adev) static u32 vega10_ih_get_wptr(struct amdgpu_device *adev, struct amdgpu_ih_ring *ih) { - u32 wptr, tmp; + u32 wptr, reg, tmp; wptr = le32_to_cpu(*ih->wptr_cpu); @@ -278,7 +278,17 @@ static u32 vega10_ih_get_wptr(struct amdgpu_device *adev, goto out; /* Double check that the overflow wasn't already cleared. */ - wptr = RREG32_NO_KIQ(SOC15_REG_OFFSET(OSSSYS, 0, mmIH_RB_WPTR)); + + if (ih == &adev->irq.ih) + reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_RB_WPTR); + else if (ih == &adev->irq.ih1) + reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_RB_WPTR_RING1); + else if (ih == &adev->irq.ih2) + reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_RB_WPTR_RING2); + else + BUG(); + + wptr = RREG32_NO_KIQ(reg); if (!REG_GET_FIELD(wptr, IH_RB_WPTR, RB_OVERFLOW)) goto out; @@ -294,9 +304,18 @@ static u32 vega10_ih_get_wptr(struct amdgpu_device *adev, wptr, ih->rptr, tmp); ih->rptr = tmp; - tmp = RREG32_NO_KIQ(SOC15_REG_OFFSET(OSSSYS, 0, mmIH_RB_CNTL)); + if (ih == &adev->irq.ih) + reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_RB_CNTL); + else if (ih == &adev->irq.ih1) + reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_RB_CNTL_RING1); + else if (ih == &adev->irq.ih2) + reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_RB_CNTL_RING2); + else + BUG(); + + tmp = RREG32_NO_KIQ(reg); tmp = REG_SET_FIELD(tmp, IH_RB_CNTL, WPTR_OVERFLOW_CLEAR, 1); - WREG32_NO_KIQ(SOC15_REG_OFFSET(OSSSYS, 0, mmIH_RB_CNTL), tmp); + WREG32_NO_KIQ(reg, tmp); out: return (wptr & ih->ptr_mask); @@ -359,9 +378,52 @@ static void vega10_ih_set_rptr(struct amdgpu_device *adev, /* XXX check if swapping is necessary on BE */ *ih->rptr_cpu = ih->rptr; WDOORBELL32(ih->doorbell_index, ih->rptr); - } else { + } else if (ih == &adev->irq.ih) { WREG32_SOC15(OSSSYS, 0, mmIH_RB_RPTR, ih->rptr); + } else if (ih == &adev->irq.ih1) { + WREG32_SOC15(OSSSYS, 0, mmIH_RB_RPTR_RING1, ih->rptr); + } else if (ih == &adev->irq.ih2) { + WREG32_SOC15(OSSSYS, 0, mmIH_RB_RPTR_RING2, ih->rptr); + } +} + +/** + * vega10_ih_self_irq - dispatch work for ring 1 and 2 + * + * @adev: amdgpu_device pointer + * @source: irq source + * @entry: IV with WPTR update + * + * Update the WPTR from the IV and schedule work to handle the entries. + */ +static int vega10_ih_self_irq(struct amdgpu_device *adev, + struct amdgpu_irq_src *source, + struct amdgpu_iv_entry *entry) +{ + uint32_t wptr = cpu_to_le32(entry->src_data[0]); + + switch (entry->ring_id) { + case 1: + *adev->irq.ih1.wptr_cpu = wptr; + schedule_work(&adev->irq.ih1_work); + break; + case 2: + *adev->irq.ih2.wptr_cpu = wptr; + schedule_work(&adev->irq.ih2_work); + break; + default: break; } + return 0; +} + +static const struct amdgpu_irq_src_funcs vega10_ih_self_irq_funcs = { + .process = vega10_ih_self_irq, +}; + +static void vega10_ih_set_self_irq_funcs(struct amdgpu_device *adev) +{ + adev->irq.self_irq.num_types = 0; + adev->irq.self_irq.funcs = &vega10_ih_self_irq_funcs; } static int vega10_ih_early_init(void *handle) @@ -369,13 +431,19 @@ static int vega10_ih_early_init(void *handle) struct amdgpu_device *adev = (struct amdgpu_device *)handle; vega10_ih_set_interrupt_funcs(adev); + vega10_ih_set_self_irq_funcs(adev); return 0; } static int vega10_ih_sw_init(void *handle) { - int r; struct amdgpu_device *adev = (struct amdgpu_device *)handle; + int r; + + r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_IH, 0, + &adev->irq.self_irq); + if (r) + return r; r = amdgpu_ih_ring_init(adev, &adev->irq.ih, 256 * 1024, true); if (r) -- 2.17.1