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drm/xe/memirq: Dump all source pages if MSI-X

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When using MSI-X, engines report their source/status on separate
MEMIRQ pages, so we need to dump additional source pages, not just
the first one.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Ilia Levi <ilia.levi@intel.com>
Reviewed-by: Ilia Levi <ilia.levi@intel.com>
Link: https://patch.msgid.link/20260518192547.600-8-michal.wajdeczko@intel.com
This commit is contained in:
Michal Wajdeczko 2026-05-18 21:25:45 +02:00
parent becd6a78b5
commit 4c3077da4e
2 changed files with 17 additions and 3 deletions
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18
drivers/gpu/drm/xe/xe_memirq.c
View File

@ -221,6 +221,7 @@ static int memirq_alloc_pages(struct xe_memirq *memirq)
memirq->source = IOSYS_MAP_INIT_OFFSET(&bo->vmap, XE_MEMIRQ_SOURCE_OFFSET(0));
memirq->status = IOSYS_MAP_INIT_OFFSET(&bo->vmap, XE_MEMIRQ_STATUS_OFFSET(0));
memirq->mask = IOSYS_MAP_INIT_OFFSET(&bo->vmap, XE_MEMIRQ_ENABLE_OFFSET);
memirq->num_pages = num_pages;
memirq_assert(memirq, !memirq->source.is_iomem);
memirq_assert(memirq, !memirq->status.is_iomem);
@ -532,6 +533,18 @@ bool xe_memirq_guc_sw_int_0_irq_pending(struct xe_memirq *memirq, struct xe_guc
guc_name(guc));
}
static void memirq_dump_source_pages(struct xe_memirq *memirq)
{
memirq_assert(memirq, !memirq->bo->vmap.is_iomem);
for (int n = 0; n < memirq->num_pages; n++) {
memirq_debug(memirq, "SOURCE %*ph\n", 32,
memirq->bo->vmap.vaddr + XE_MEMIRQ_SOURCE_OFFSET(n));
memirq_debug(memirq, "SOURCE %*ph\n", 32,
memirq->bo->vmap.vaddr + XE_MEMIRQ_SOURCE_OFFSET(n) + 32);
}
}
/**
* xe_memirq_handler - The `Memory Based Interrupts`_ Handler.
* @memirq: the &xe_memirq
@ -551,9 +564,8 @@ void xe_memirq_handler(struct xe_memirq *memirq)
if (!memirq->bo)
return;
memirq_assert(memirq, !memirq->source.is_iomem);
memirq_debug(memirq, "SOURCE %*ph\n", 32, memirq->source.vaddr);
memirq_debug(memirq, "SOURCE %*ph\n", 32, memirq->source.vaddr + 32);
if (IS_ENABLED(CONFIG_DRM_XE_DEBUG_MEMIRQ))
memirq_dump_source_pages(memirq);
for_each_gt(gt, xe, gtid) {
if (gt->tile != tile)

2
drivers/gpu/drm/xe/xe_memirq_types.h
View File

@ -14,6 +14,7 @@ struct xe_bo;
* struct xe_memirq - Data used by the `Memory Based Interrupts`_.
*
* @bo: buffer object with `Memory Based Interrupts Page Layout`_.
* @num_pages: number of per-instance source/status pages.
* @source: iosys pointer to `Interrupt Source Report Page`_.
* @status: iosys pointer to `Interrupt Status Report Page`_.
* @mask: iosys pointer to Interrupt Enable Mask.
@ -21,6 +22,7 @@ struct xe_bo;
*/
struct xe_memirq {
struct xe_bo *bo;
unsigned int num_pages;
struct iosys_map source;
struct iosys_map status;
struct iosys_map mask;