diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c index aaa8545e458a..2fca08e130b6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c @@ -51,6 +51,7 @@ #include "atom.h" #include "amdgpu_connectors.h" #include "amdgpu_trace.h" +#include "amdgpu_amdkfd.h" #include <linux/pm_runtime.h> @@ -147,6 +148,34 @@ void amdgpu_irq_disable_all(struct amdgpu_device *adev) } /** + * amdgpu_irq_callback - callback from the IH ring + * + * @adev: amdgpu device pointer + * @ih: amdgpu ih ring + * + * Callback from IH ring processing to handle the entry at the current position + * and advance the read pointer. + */ +static void amdgpu_irq_callback(struct amdgpu_device *adev, + struct amdgpu_ih_ring *ih) +{ + u32 ring_index = ih->rptr >> 2; + struct amdgpu_iv_entry entry; + + /* Prescreening of high-frequency interrupts */ + if (!amdgpu_ih_prescreen_iv(adev)) + return; + + /* Before dispatching irq to IP blocks, send it to amdkfd */ + amdgpu_amdkfd_interrupt(adev, (const void *) &ih->ring[ring_index]); + + entry.iv_entry = (const uint32_t *)&ih->ring[ring_index]; + amdgpu_ih_decode_iv(adev, &entry); + + amdgpu_irq_dispatch(adev, &entry); +} + +/** * amdgpu_irq_handler - IRQ handler * * @irq: IRQ number (unused) @@ -163,7 +192,7 @@ irqreturn_t amdgpu_irq_handler(int irq, void *arg) struct amdgpu_device *adev = dev->dev_private; irqreturn_t ret; - ret = amdgpu_ih_process(adev, &adev->irq.ih); + ret = amdgpu_ih_process(adev, &adev->irq.ih, amdgpu_irq_callback); if (ret == IRQ_HANDLED) pm_runtime_mark_last_busy(dev->dev); return ret; |