git/linux-cryptodev-2.6
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git synced 2026-04-23 05:56:14 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amdkfd: Update interrupt handling for GFX 9.4.3

Browse Source 
For GFX 9.4.3, interrupt handling needs to be updated for:
- Interrupt cookie will have a NodeId field. Each KFD
  node needs to check the NodeId before processing the
  interrupt.
- For CPX mode, there are additional checks of client ID
  needed to process the interrupt.
- Add NodeId to the process drain interrupt.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Mukul Joshi
2023-06-22 15:24:32 -04:00
committed by Alex Deucher
parent 570b295248
commit d4300362a6
5 changed files with 82 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/gpu/drm/amd/amdkfd/kfd_process.c
View File

@@ -2142,6 +2142,7 @@ void kfd_flush_tlb(struct kfd_process_device *pdd, enum TLB_FLUSH_TYPE type)
int kfd_process_drain_interrupts(struct kfd_process_device *pdd)
{
uint32_t irq_drain_fence[8];
uint8_t node_id = 0;
int r = 0;
if (!KFD_IS_SOC15(pdd->dev))
@@ -2154,6 +2155,14 @@ int kfd_process_drain_interrupts(struct kfd_process_device *pdd)
KFD_IRQ_FENCE_CLIENTID;
irq_drain_fence[3] = pdd->process->pasid;
/*
* For GFX 9.4.3, send the NodeId also in IH cookie DW[3]
*/
if (KFD_GC_VERSION(pdd->dev->kfd) == IP_VERSION(9, 4, 3)) {
node_id = ffs(pdd->dev->interrupt_bitmap) - 1;
irq_drain_fence[3] |= node_id << 16;
}
/* ensure stale irqs scheduled KFD interrupts and send drain fence. */
if (amdgpu_amdkfd_send_close_event_drain_irq(pdd->dev->adev,
irq_drain_fence)) {