Commit 494752bd authored by Michal Wajdeczko's avatar Michal Wajdeczko
Browse files

drm/xe/pf: Don't force 2MB VRAM alignment 



There is no need to always request VRAM BO to have 2MB alignment
as for now this is required by the LMTT only, which could be not
present on some platforms with VRAM.

Signed-off-by: default avatarMichal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: default avatarMatthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260221152230.7071-3-michal.wajdeczko@intel.com
parent 57a5422d

drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c

+5 −3
Original line number Diff line number Diff line
@@ -1626,13 +1626,15 @@ static int pf_provision_vf_lmem(struct xe_gt *gt, unsigned int vfid, u64 size) 
	struct xe_device *xe = gt_to_xe(gt);

	struct xe_tile *tile = gt_to_tile(gt);

	struct xe_bo *bo;

	u64 alignment;

	int err;



	xe_gt_assert(gt, vfid);

	xe_gt_assert(gt, IS_DGFX(xe));

	xe_gt_assert(gt, xe_gt_is_main_type(gt));



	size = round_up(size, pf_get_lmem_alignment(gt));

	alignment = pf_get_lmem_alignment(gt);

	size = round_up(size, alignment);



	if (config->lmem_obj) {

		err = pf_distribute_config_lmem(gt, vfid, 0);
@@ -1648,12 +1650,12 @@ static int pf_provision_vf_lmem(struct xe_gt *gt, unsigned int vfid, u64 size) 
	if (!size)

		return 0;



	xe_gt_assert(gt, pf_get_lmem_alignment(gt) == SZ_2M);

	xe_gt_assert(gt, alignment == XE_PAGE_SIZE || alignment == SZ_2M);

	bo = xe_bo_create_pin_range_novm(xe, tile,

					 ALIGN(size, PAGE_SIZE), 0, ~0ull,

					 ttm_bo_type_kernel,

					 XE_BO_FLAG_VRAM(tile->mem.vram) |

					 XE_BO_FLAG_NEEDS_2M |

					 (alignment == SZ_2M ? XE_BO_FLAG_NEEDS_2M : 0) |

					 XE_BO_FLAG_PINNED |

					 XE_BO_FLAG_PINNED_LATE_RESTORE |

					 XE_BO_FLAG_FORCE_USER_VRAM);