kernel/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h, branch linux-rolling-stable

drm/amdgpu: fix fence fallback timer expired error

2025-06-18T16:19:15Z

IH is not working after switching a new gpu index for the first time. During VM resume, QEMU programming of VF MSIX table (register GFXMSIX_VECT0_ADDR_LO) may not work.The access could be blocked by nBIF protection as VF isn't in exclusive access mode. Exclusive access is enabled now, disable/enable MSIX so that QEMU reprograms MSIX table. call amdgpu_restore_msix on resume to restore msix table. Signed-off-by: Samuel Zhang Acked-by: Lijo Lazar Signed-off-by: Alex Deucher

drm/amdgpu: complement the IH node_id table for multiple AIDs

2023-06-09T13:43:50Z

With different node_id, the SDMA interrupt from multiple AIDs can be distinguished by sw driver. Signed-off-by: Le Ma Acked-by: Felix Kuehling Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher

drm/amdgpu: add node_id to physical id conversion in EOP handler

2023-06-09T13:42:13Z

A new field nodeid in interrupt cookie indicates the node ID. Signed-off-by: Le Ma Reviewed-by: Shiwu Zhang Signed-off-by: Alex Deucher

drm/amdgpu: remove pasid_src field from IV entry

2023-06-09T13:25:47Z

PASID_SRC is not actually present in the Interrupt Packet, the field is taken as reserved bits now. So remove it from IV entry to avoid misuse. Signed-off-by: Xiaomeng Hou Reviewed-by: Aaron Liu Signed-off-by: Alex Deucher

drm/amdgpu: allocate doorbell index for multi-die case

2023-04-21T12:49:37Z

Allocate different doorbell index for kiq/kcq rings on each die Signed-off-by: Le Ma Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amdgpu: Enable IH retry CAM on GFX9

2023-04-13T04:14:08Z

This patch enables the IH retry CAM on GFX9 series cards. This retry filter is used to prevent sending lots of retry interrupts in a short span of time and overflowing the IH ring buffer. This will also help reduce CPU interrupt workload. Signed-off-by: Mukul Joshi Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: Convert to Linux IRQ interfaces

2021-08-10T18:00:44Z

Drop the DRM IRQ midlayer in favor of Linux IRQ interfaces. DRM's IRQ helpers are mostly useful for UMS drivers. Modern KMS drivers don't benefit from using it. DRM IRQ callbacks are now being called directly or inlined. The interrupt number returned by pci_msi_vector() is now stored in struct amdgpu_irq. Calls to pci_msi_vector() can fail and return a negative errno code. Abort initlaizaton in thi case. The DRM IRQ midlayer does not handle this correctly. Signed-off-by: Thomas Zimmermann Reviewed-by: Alex Deucher Acked-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20210803090704.32152-2-tzimmermann@suse.de

drm/amdgpu: Split amdgpu_device_fini into early and late

2021-05-20T03:45:49Z

Some of the stuff in amdgpu_device_fini such as HW interrupts disable and pending fences finilization must be done right away on pci_remove while most of the stuff which relates to finilizing and releasing driver data structures can be kept until drm_driver.release hook is called, i.e. when the last device reference is dropped. v4: Change functions prefix early->hw and late->sw Signed-off-by: Andrey Grodzovsky Acked-by: Christian König Reviewed-by: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20210512142648.666476-3-andrey.grodzovsky@amd.com

drm/amdgpu: remove irq_src->data handling

2021-04-09T20:43:28Z

That is unused for quite some time now. Signed-off-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: add infrastructure for soft IH ring

2020-11-24T17:06:38Z

Add a soft IH ring implementation similar to the hardware IH1/2. This can be used if the hardware delegation of interrupts to IH1/2 doesn't work for some reason. Signed-off-by: Christian König Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher