diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/cik_ih.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/cik_ih.c | 72 |
1 files changed, 41 insertions, 31 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/cik_ih.c b/drivers/gpu/drm/amd/amdgpu/cik_ih.c index df385ffc9768..876a3256dba4 100644 --- a/drivers/gpu/drm/amd/amdgpu/cik_ih.c +++ b/drivers/gpu/drm/amd/amdgpu/cik_ih.c @@ -156,6 +156,9 @@ static int cik_ih_irq_init(struct amdgpu_device *adev) /* enable irqs */ cik_ih_enable_interrupts(adev); + if (adev->irq.ih_soft.ring_size) + adev->irq.ih_soft.enabled = true; + return 0; } @@ -192,6 +195,9 @@ static u32 cik_ih_get_wptr(struct amdgpu_device *adev, wptr = le32_to_cpu(*ih->wptr_cpu); + if (ih == &adev->irq.ih_soft) + goto out; + if (wptr & IH_RB_WPTR__RB_OVERFLOW_MASK) { wptr &= ~IH_RB_WPTR__RB_OVERFLOW_MASK; /* When a ring buffer overflow happen start parsing interrupt @@ -204,7 +210,15 @@ static u32 cik_ih_get_wptr(struct amdgpu_device *adev, tmp = RREG32(mmIH_RB_CNTL); tmp |= IH_RB_CNTL__WPTR_OVERFLOW_CLEAR_MASK; WREG32(mmIH_RB_CNTL, tmp); + + /* Unset the CLEAR_OVERFLOW bit immediately so new overflows + * can be detected. + */ + tmp &= ~IH_RB_CNTL__WPTR_OVERFLOW_CLEAR_MASK; + WREG32(mmIH_RB_CNTL, tmp); } + +out: return (wptr & ih->ptr_mask); } @@ -277,9 +291,9 @@ static void cik_ih_set_rptr(struct amdgpu_device *adev, WREG32(mmIH_RB_RPTR, ih->rptr); } -static int cik_ih_early_init(void *handle) +static int cik_ih_early_init(struct amdgpu_ip_block *ip_block) { - struct amdgpu_device *adev = (struct amdgpu_device *)handle; + struct amdgpu_device *adev = ip_block->adev; int ret; ret = amdgpu_irq_add_domain(adev); @@ -291,23 +305,27 @@ static int cik_ih_early_init(void *handle) return 0; } -static int cik_ih_sw_init(void *handle) +static int cik_ih_sw_init(struct amdgpu_ip_block *ip_block) { int r; - struct amdgpu_device *adev = (struct amdgpu_device *)handle; + struct amdgpu_device *adev = ip_block->adev; r = amdgpu_ih_ring_init(adev, &adev->irq.ih, 64 * 1024, false); if (r) return r; + r = amdgpu_ih_ring_init(adev, &adev->irq.ih_soft, IH_SW_RING_SIZE, true); + if (r) + return r; + r = amdgpu_irq_init(adev); return r; } -static int cik_ih_sw_fini(void *handle) +static int cik_ih_sw_fini(struct amdgpu_ip_block *ip_block) { - struct amdgpu_device *adev = (struct amdgpu_device *)handle; + struct amdgpu_device *adev = ip_block->adev; amdgpu_irq_fini_sw(adev); amdgpu_irq_remove_domain(adev); @@ -315,39 +333,33 @@ static int cik_ih_sw_fini(void *handle) return 0; } -static int cik_ih_hw_init(void *handle) +static int cik_ih_hw_init(struct amdgpu_ip_block *ip_block) { - struct amdgpu_device *adev = (struct amdgpu_device *)handle; + struct amdgpu_device *adev = ip_block->adev; return cik_ih_irq_init(adev); } -static int cik_ih_hw_fini(void *handle) +static int cik_ih_hw_fini(struct amdgpu_ip_block *ip_block) { - struct amdgpu_device *adev = (struct amdgpu_device *)handle; - - cik_ih_irq_disable(adev); + cik_ih_irq_disable(ip_block->adev); return 0; } -static int cik_ih_suspend(void *handle) +static int cik_ih_suspend(struct amdgpu_ip_block *ip_block) { - struct amdgpu_device *adev = (struct amdgpu_device *)handle; - - return cik_ih_hw_fini(adev); + return cik_ih_hw_fini(ip_block); } -static int cik_ih_resume(void *handle) +static int cik_ih_resume(struct amdgpu_ip_block *ip_block) { - struct amdgpu_device *adev = (struct amdgpu_device *)handle; - - return cik_ih_hw_init(adev); + return cik_ih_hw_init(ip_block); } -static bool cik_ih_is_idle(void *handle) +static bool cik_ih_is_idle(struct amdgpu_ip_block *ip_block) { - struct amdgpu_device *adev = (struct amdgpu_device *)handle; + struct amdgpu_device *adev = ip_block->adev; u32 tmp = RREG32(mmSRBM_STATUS); if (tmp & SRBM_STATUS__IH_BUSY_MASK) @@ -356,11 +368,11 @@ static bool cik_ih_is_idle(void *handle) return true; } -static int cik_ih_wait_for_idle(void *handle) +static int cik_ih_wait_for_idle(struct amdgpu_ip_block *ip_block) { unsigned i; u32 tmp; - struct amdgpu_device *adev = (struct amdgpu_device *)handle; + struct amdgpu_device *adev = ip_block->adev; for (i = 0; i < adev->usec_timeout; i++) { /* read MC_STATUS */ @@ -372,9 +384,9 @@ static int cik_ih_wait_for_idle(void *handle) return -ETIMEDOUT; } -static int cik_ih_soft_reset(void *handle) +static int cik_ih_soft_reset(struct amdgpu_ip_block *ip_block) { - struct amdgpu_device *adev = (struct amdgpu_device *)handle; + struct amdgpu_device *adev = ip_block->adev; u32 srbm_soft_reset = 0; u32 tmp = RREG32(mmSRBM_STATUS); @@ -402,13 +414,13 @@ static int cik_ih_soft_reset(void *handle) return 0; } -static int cik_ih_set_clockgating_state(void *handle, +static int cik_ih_set_clockgating_state(struct amdgpu_ip_block *ip_block, enum amd_clockgating_state state) { return 0; } -static int cik_ih_set_powergating_state(void *handle, +static int cik_ih_set_powergating_state(struct amdgpu_ip_block *ip_block, enum amd_powergating_state state) { return 0; @@ -417,7 +429,6 @@ static int cik_ih_set_powergating_state(void *handle, static const struct amd_ip_funcs cik_ih_ip_funcs = { .name = "cik_ih", .early_init = cik_ih_early_init, - .late_init = NULL, .sw_init = cik_ih_sw_init, .sw_fini = cik_ih_sw_fini, .hw_init = cik_ih_hw_init, @@ -442,8 +453,7 @@ static void cik_ih_set_interrupt_funcs(struct amdgpu_device *adev) adev->irq.ih_funcs = &cik_ih_funcs; } -const struct amdgpu_ip_block_version cik_ih_ip_block = -{ +const struct amdgpu_ip_block_version cik_ih_ip_block = { .type = AMD_IP_BLOCK_TYPE_IH, .major = 2, .minor = 0, |