diff options
Diffstat (limited to 'drivers/gpu/drm/xe/xe_gt_mcr.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_gt_mcr.c | 39 |
1 files changed, 33 insertions, 6 deletions
diff --git a/drivers/gpu/drm/xe/xe_gt_mcr.c b/drivers/gpu/drm/xe/xe_gt_mcr.c index a7ab9ba645f9..577bd7043740 100644 --- a/drivers/gpu/drm/xe/xe_gt_mcr.c +++ b/drivers/gpu/drm/xe/xe_gt_mcr.c @@ -6,6 +6,7 @@ #include "xe_gt_mcr.h" #include "regs/xe_gt_regs.h" +#include "xe_assert.h" #include "xe_gt.h" #include "xe_gt_topology.h" #include "xe_gt_types.h" @@ -294,14 +295,40 @@ static void init_steering_mslice(struct xe_gt *gt) gt->steering[LNCF].instance_target = 0; /* unused */ } -static void init_steering_dss(struct xe_gt *gt) +static unsigned int dss_per_group(struct xe_gt *gt) { - unsigned int dss = min(xe_dss_mask_group_ffs(gt->fuse_topo.g_dss_mask, 0, 0), - xe_dss_mask_group_ffs(gt->fuse_topo.c_dss_mask, 0, 0)); - unsigned int dss_per_grp = gt_to_xe(gt)->info.platform == XE_PVC ? 8 : 4; + if (gt_to_xe(gt)->info.platform == XE_PVC) + return 8; + else if (GRAPHICS_VERx100(gt_to_xe(gt)) >= 1250) + return 4; + else + return 6; +} - gt->steering[DSS].group_target = dss / dss_per_grp; - gt->steering[DSS].instance_target = dss % dss_per_grp; +/** + * xe_gt_mcr_get_dss_steering - Get the group/instance steering for a DSS + * @gt: GT structure + * @dss: DSS ID to obtain steering for + * @group: pointer to storage for steering group ID + * @instance: pointer to storage for steering instance ID + */ +void xe_gt_mcr_get_dss_steering(struct xe_gt *gt, unsigned int dss, u16 *group, u16 *instance) +{ + int dss_per_grp = dss_per_group(gt); + + xe_gt_assert(gt, dss < XE_MAX_DSS_FUSE_BITS); + + *group = dss / dss_per_grp; + *instance = dss % dss_per_grp; +} + +static void init_steering_dss(struct xe_gt *gt) +{ + xe_gt_mcr_get_dss_steering(gt, + min(xe_dss_mask_group_ffs(gt->fuse_topo.g_dss_mask, 0, 0), + xe_dss_mask_group_ffs(gt->fuse_topo.c_dss_mask, 0, 0)), + >->steering[DSS].group_target, + >->steering[DSS].instance_target); } static void init_steering_oaddrm(struct xe_gt *gt) |