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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:17:46 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:17:46 +0000
commit7f3a4257159dea8e7ef66d1a539dc6df708b8ed3 (patch)
treebcc69b5f4609f348fac49e2f59e210b29eaea783 /drivers/gpu/drm/xe/xe_gt_mcr.c
parentAdding upstream version 6.9.12. (diff)
downloadlinux-7f3a4257159dea8e7ef66d1a539dc6df708b8ed3.tar.xz
linux-7f3a4257159dea8e7ef66d1a539dc6df708b8ed3.zip
Adding upstream version 6.10.3.upstream/6.10.3
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/xe/xe_gt_mcr.c')
-rw-r--r--drivers/gpu/drm/xe/xe_gt_mcr.c39
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 c78fbb9bc5..0443e07880 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)),
+ &gt->steering[DSS].group_target,
+ &gt->steering[DSS].instance_target);
}
static void init_steering_oaddrm(struct xe_gt *gt)