diff --git a/drivers/gpu/drm/xe/xe_migrate.c b/drivers/gpu/drm/xe/xe_migrate.c index 6a0f04411ae0..0f9636a06083 100644 --- a/drivers/gpu/drm/xe/xe_migrate.c +++ b/drivers/gpu/drm/xe/xe_migrate.c @@ -1802,6 +1802,7 @@ static struct dma_fence *xe_migrate_vram(struct xe_migrate *m, unsigned int pitch = len >= PAGE_SIZE && !(len & ~PAGE_MASK) ? PAGE_SIZE : 4; int err; + unsigned long i, j; if (drm_WARN_ON(&xe->drm, (len & XE_CACHELINE_MASK) || (sram_offset | vram_addr) & XE_CACHELINE_MASK)) @@ -1818,6 +1819,24 @@ static struct dma_fence *xe_migrate_vram(struct xe_migrate *m, return ERR_PTR(err); } + /* + * If the order of a struct drm_pagemap_addr entry is greater than 0, + * the entry is populated by GPU pagemap but subsequent entries within + * the range of that order are not populated. + * build_pt_update_batch_sram() expects a fully populated array of + * struct drm_pagemap_addr. Ensure this is the case even with higher + * orders. + */ + for (i = 0; i < npages;) { + unsigned int order = sram_addr[i].order; + + for (j = 1; j < NR_PAGES(order) && i + j < npages; j++) + if (!sram_addr[i + j].addr) + sram_addr[i + j].addr = sram_addr[i].addr + j * PAGE_SIZE; + + i += NR_PAGES(order); + } + build_pt_update_batch_sram(m, bb, pt_slot * XE_PAGE_SIZE, sram_addr, len + sram_offset);