diff options
| author | Gustavo Sousa <gustavo.sousa@intel.com> | 2026-03-10 03:42:09 +0300 |
|---|---|---|
| committer | Gustavo Sousa <gustavo.sousa@intel.com> | 2026-03-11 01:18:45 +0300 |
| commit | 557c05034ffaa0614d2ed57fff435b6630b92e70 (patch) | |
| tree | 895dd8a79c6709406a3fa857ae5f79dfa5d099ef | |
| parent | 19da26bce08a5686515b877099af78169148a3b3 (diff) | |
| download | linux-557c05034ffaa0614d2ed57fff435b6630b92e70.tar.xz | |
drm/xe/rtp: Add support for matching platform-level stepping
Add support for matching platform-level stepping, which will be used for
an upcoming NVL-P workaround.
As support for reading platform-level stepping information is added only
as needed in the driver, add a warning when the rule finds a STEP_NONE
value, which is an indication that the driver is missing such a support.
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patch.msgid.link/20260309-extra-nvl-p-enabling-patches-v5-4-be9c902ee34e@intel.com
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
| -rw-r--r-- | drivers/gpu/drm/xe/xe_rtp.c | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_rtp.h | 20 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_rtp_types.h | 1 |
3 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_rtp.c b/drivers/gpu/drm/xe/xe_rtp.c index 7bfdc6795ce6..991f218f1cc3 100644 --- a/drivers/gpu/drm/xe/xe_rtp.c +++ b/drivers/gpu/drm/xe/xe_rtp.c @@ -55,6 +55,13 @@ static bool rule_matches(const struct xe_device *xe, match = xe->info.platform == r->platform && xe->info.subplatform == r->subplatform; break; + case XE_RTP_MATCH_PLATFORM_STEP: + if (drm_WARN_ON(&xe->drm, xe->info.step.platform == STEP_NONE)) + return false; + + match = xe->info.step.platform >= r->step_start && + xe->info.step.platform < r->step_end; + break; case XE_RTP_MATCH_GRAPHICS_VERSION: if (drm_WARN_ON(&xe->drm, !gt)) return false; diff --git a/drivers/gpu/drm/xe/xe_rtp.h b/drivers/gpu/drm/xe/xe_rtp.h index be4195264286..7d6daa7eb1e4 100644 --- a/drivers/gpu/drm/xe/xe_rtp.h +++ b/drivers/gpu/drm/xe/xe_rtp.h @@ -35,6 +35,10 @@ struct xe_reg_sr; { .match_type = XE_RTP_MATCH_SUBPLATFORM, \ .platform = plat__, .subplatform = sub__ } +#define _XE_RTP_RULE_PLATFORM_STEP(start__, end__) \ + { .match_type = XE_RTP_MATCH_PLATFORM_STEP, \ + .step_start = start__, .step_end = end__ } + #define _XE_RTP_RULE_GRAPHICS_STEP(start__, end__) \ { .match_type = XE_RTP_MATCH_GRAPHICS_STEP, \ .step_start = start__, .step_end = end__ } @@ -67,6 +71,22 @@ struct xe_reg_sr; _XE_RTP_RULE_SUBPLATFORM(XE_##plat_, XE_SUBPLATFORM_##plat_##_##sub_) /** + * XE_RTP_RULE_PLATFORM_STEP - Create rule matching platform-level stepping + * @start_: First stepping matching the rule + * @end_: First stepping that does not match the rule + * + * Note that the range matching this rule is [ @start_, @end_ ), i.e. inclusive + * on the left, exclusive on the right. + * + * You need to make sure that proper support for reading platform-level stepping + * information is present for the target platform before using this rule. + * + * Refer to XE_RTP_RULES() for expected usage. + */ +#define XE_RTP_RULE_PLATFORM_STEP(start_, end_) \ + _XE_RTP_RULE_PLATFORM_STEP(STEP_##start_, STEP_##end_) + +/** * XE_RTP_RULE_GRAPHICS_STEP - Create rule matching graphics stepping * @start_: First stepping matching the rule * @end_: First stepping that does not match the rule diff --git a/drivers/gpu/drm/xe/xe_rtp_types.h b/drivers/gpu/drm/xe/xe_rtp_types.h index 6ba7f226c227..166251615be1 100644 --- a/drivers/gpu/drm/xe/xe_rtp_types.h +++ b/drivers/gpu/drm/xe/xe_rtp_types.h @@ -41,6 +41,7 @@ struct xe_rtp_action { enum { XE_RTP_MATCH_PLATFORM, XE_RTP_MATCH_SUBPLATFORM, + XE_RTP_MATCH_PLATFORM_STEP, XE_RTP_MATCH_GRAPHICS_VERSION, XE_RTP_MATCH_GRAPHICS_VERSION_RANGE, XE_RTP_MATCH_GRAPHICS_VERSION_ANY_GT, |