diff options
| author | Xin Wang <x.wang@intel.com> | 2025-11-10 22:14:58 +0000 |
|---|---|---|
| committer | Matthew Auld <matthew.auld@intel.com> | 2025-11-14 13:47:52 +0000 |
| commit | b2bce0e551e89af37cfcb1b1158d80f369eeea3f (patch) | |
| tree | 555e3ab73e64a155ecdad2b0dd3134eefa5f4f0a /drivers/gpu | |
| parent | 6bcb180f6f4585554cefbe8c412aa8879b15f07a (diff) | |
drm/xe/pat: Add helper to query compression enable status
Add xe_pat_index_get_comp_en() helper function to check whether
compression is enabled for a given PAT index by extracting the
XE2_COMP_EN bit from the PAT table entry.
There are no current users, however there are multiple in-flight series
which will all use this helper.
CC: Nitin Gote <nitin.r.gote@intel.com>
CC: Sanjay Yadav <sanjay.kumar.yadav@intel.com>
CC: Matt Roper <matthew.d.roper@intel.com>
Suggested-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Xin Wang <x.wang@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Nitin Gote <nitin.r.gote@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Sanjay Yadav <sanjay.kumar.yadav@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patch.msgid.link/20251110221458.1864507-2-x.wang@intel.com
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_pat.c | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_pat.h | 10 |
2 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_pat.c b/drivers/gpu/drm/xe/xe_pat.c index 68171cceea18..1b4d5d3def0f 100644 --- a/drivers/gpu/drm/xe/xe_pat.c +++ b/drivers/gpu/drm/xe/xe_pat.c @@ -196,6 +196,12 @@ u16 xe_pat_index_get_coh_mode(struct xe_device *xe, u16 pat_index) return xe->pat.table[pat_index].coh_mode; } +bool xe_pat_index_get_comp_en(struct xe_device *xe, u16 pat_index) +{ + WARN_ON(pat_index >= xe->pat.n_entries); + return !!(xe->pat.table[pat_index].value & XE2_COMP_EN); +} + static void program_pat(struct xe_gt *gt, const struct xe_pat_table_entry table[], int n_entries) { diff --git a/drivers/gpu/drm/xe/xe_pat.h b/drivers/gpu/drm/xe/xe_pat.h index 05dae03a5f54..b8559120989e 100644 --- a/drivers/gpu/drm/xe/xe_pat.h +++ b/drivers/gpu/drm/xe/xe_pat.h @@ -58,4 +58,14 @@ int xe_pat_dump(struct xe_gt *gt, struct drm_printer *p); */ u16 xe_pat_index_get_coh_mode(struct xe_device *xe, u16 pat_index); +/** + * xe_pat_index_get_comp_en - Extract the compression enable flag for + * the given pat_index. + * @xe: xe device + * @pat_index: The pat_index to query + * + * Return: true if compression is enabled for this pat_index, false otherwise. + */ +bool xe_pat_index_get_comp_en(struct xe_device *xe, u16 pat_index); + #endif |