diff options
| author | Michal Wajdeczko <michal.wajdeczko@intel.com> | 2025-09-11 00:24:39 +0200 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2025-09-15 08:26:26 -0400 |
| commit | fef8b64e48e836344574b85132a1c317f4260022 (patch) | |
| tree | 85a12e92e6204c801f3926212c1a45e91d31ebc7 | |
| parent | 013e484dbd687a9174acf8f4450217bdb86ad788 (diff) | |
drm/xe/pf: Drop rounddown_pow_of_two fair LMEM limitation
This effectively reverts commit 4c3fe5eae46b ("drm/xe/pf: Limit
fair VF LMEM provisioning") since we don't need it any more after
non-contig VRAM allocations were fixed. This allows larger LMEM
auto-provisioning for VFs, so instead:
[ ] GT0: PF: LMEM available(14096M) fair(1 x 8192M)
[ ] GT0: PF: VF1 provisioned with 8589934592 (8.00 GiB) LMEM
or
[ ] GT0: PF: LMEM available(14096M) fair(2 x 4096M)
[ ] GT0: PF: VF1..VF2 provisioned with 4294967296 (4.00 GiB) LMEM
we may get:
[ ] GT0: PF: LMEM available(14096M) fair(1 x 14096M)
[ ] GT0: PF: VF1 provisioned with 14780727296 (13.8 GiB) LMEM
and
[ ] GT0: PF: LMEM available(14096M) fair(2 x 7048M)
[ ] GT0: PF: VF1..VF2 provisioned with 7390363648 (6.88 GiB) LMEM
Fixes: 1e32ffbc9dc8 ("drm/xe/sriov: support non-contig VRAM provisioning")
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Link: https://lore.kernel.org/r/20250910222439.32869-1-michal.wajdeczko@intel.com
(cherry picked from commit 95c1cfa306087142989bff34ea0e05dcd95ddc58)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
| -rw-r--r-- | drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c b/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c index 494909f74eb2..d84831a03610 100644 --- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c +++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c @@ -1632,7 +1632,6 @@ static u64 pf_estimate_fair_lmem(struct xe_gt *gt, unsigned int num_vfs) u64 fair; fair = div_u64(available, num_vfs); - fair = rounddown_pow_of_two(fair); /* XXX: ttm_vram_mgr & drm_buddy limitation */ fair = ALIGN_DOWN(fair, alignment); #ifdef MAX_FAIR_LMEM fair = min_t(u64, MAX_FAIR_LMEM, fair); |