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drm/xe/pf: Don't allow LMEM provisioning if LMTT isn't available on the device

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The LMEM provisioning is applicable only on platforms with LMTT.

v2:
 - new commit description
 - use xe_gt_assert in xe_gt_sriov_pf_config_set_lmem instead return
   error,
 - disable pf_lmem_info if LMTT is not available
v3: fix condition in xe_gt_assert
v4: rebase

Signed-off-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Stuart Summers <stuart.summers@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://lore.kernel.org/r/20250513071321.700464-1-piotr.piorkowski@intel.com
This commit is contained in:
Piotr Piórkowski 2025-05-13 09:13:21 +02:00 committed by Michal Wajdeczko
parent 16b7e65d29
commit 921ddb37d8
2 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c
View File

@ -1520,6 +1520,8 @@ int xe_gt_sriov_pf_config_set_lmem(struct xe_gt *gt, unsigned int vfid, u64 size
{
int err;
xe_gt_assert(gt, xe_device_has_lmtt(gt_to_xe(gt)));
mutex_lock(xe_gt_sriov_pf_master_mutex(gt));
if (vfid)
err = pf_provision_vf_lmem(gt, vfid, size);
@ -1629,7 +1631,7 @@ int xe_gt_sriov_pf_config_set_fair_lmem(struct xe_gt *gt, unsigned int vfid,
xe_gt_assert(gt, num_vfs);
xe_gt_assert(gt, !xe_gt_is_media_type(gt));
if (!IS_DGFX(gt_to_xe(gt)))
if (!xe_device_has_lmtt(gt_to_xe(gt)))
return 0;
mutex_lock(xe_gt_sriov_pf_master_mutex(gt));
@ -2163,7 +2165,7 @@ static int pf_validate_vf_config(struct xe_gt *gt, unsigned int vfid)
valid_all = valid_all && valid_ggtt;
valid_any = valid_any || (valid_ggtt && is_primary);
if (IS_DGFX(xe)) {
if (xe_device_has_lmtt(xe)) {
bool valid_lmem = pf_get_vf_config_lmem(primary_gt, vfid);
valid_any = valid_any || (valid_lmem && is_primary);

4
drivers/gpu/drm/xe/xe_gt_sriov_pf_debugfs.c
View File

@ -308,7 +308,7 @@ static void pf_add_config_attrs(struct xe_gt *gt, struct dentry *parent, unsigne
if (!xe_gt_is_media_type(gt)) {
debugfs_create_file_unsafe(vfid ? "ggtt_quota" : "ggtt_spare",
0644, parent, parent, &ggtt_fops);
if (IS_DGFX(gt_to_xe(gt)))
if (xe_device_has_lmtt(gt_to_xe(gt)))
debugfs_create_file_unsafe(vfid ? "lmem_quota" : "lmem_spare",
0644, parent, parent, &lmem_fops);
}
@ -558,7 +558,7 @@ void xe_gt_sriov_pf_debugfs_register(struct xe_gt *gt, struct dentry *root)
drm_debugfs_create_files(pf_ggtt_info,
ARRAY_SIZE(pf_ggtt_info),
pfdentry, minor);
if (IS_DGFX(gt_to_xe(gt)))
if (xe_device_has_lmtt(gt_to_xe(gt)))
drm_debugfs_create_files(pf_lmem_info,
ARRAY_SIZE(pf_lmem_info),
pfdentry, minor);