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authorJonathan Gray <jsg@cvs.openbsd.org>2024-05-20 05:20:42 +0000
committerJonathan Gray <jsg@cvs.openbsd.org>2024-05-20 05:20:42 +0000
commit138cb5d6de177e3a3c5c81f818f33dcf55aa2faf (patch)
treecf7bf0fa46d110bbf4f3af1612d1b692c2985877 /sys/dev/pci/drm
parentc78115b05d1b83237f5af7732cff40c4d4ce18be (diff)
drm/i915/gt: Automate CCS Mode setting during engine resets
From Andi Shyti be59b2d3d9750f784101d62cc0f25fb75e294f7e in linux-6.6.y/6.6.3 51c1b42a232f17743cd825be6790cb64735ff98f in mainline linux
Diffstat (limited to 'sys/dev/pci/drm')
-rw-r--r--sys/dev/pci/drm/i915/gt/intel_gt_ccs_mode.c6
-rw-r--r--sys/dev/pci/drm/i915/gt/intel_gt_ccs_mode.h2
-rw-r--r--sys/dev/pci/drm/i915/gt/intel_workarounds.c4
3 files changed, 7 insertions, 5 deletions
diff --git a/sys/dev/pci/drm/i915/gt/intel_gt_ccs_mode.c b/sys/dev/pci/drm/i915/gt/intel_gt_ccs_mode.c
index 044219c5960..99b71bb7da0 100644
--- a/sys/dev/pci/drm/i915/gt/intel_gt_ccs_mode.c
+++ b/sys/dev/pci/drm/i915/gt/intel_gt_ccs_mode.c
@@ -8,14 +8,14 @@
#include "intel_gt_ccs_mode.h"
#include "intel_gt_regs.h"
-void intel_gt_apply_ccs_mode(struct intel_gt *gt)
+unsigned int intel_gt_apply_ccs_mode(struct intel_gt *gt)
{
int cslice;
u32 mode = 0;
int first_ccs = __ffs(CCS_MASK(gt));
if (!IS_DG2(gt->i915))
- return;
+ return 0;
/* Build the value for the fixed CCS load balancing */
for (cslice = 0; cslice < I915_MAX_CCS; cslice++) {
@@ -35,5 +35,5 @@ void intel_gt_apply_ccs_mode(struct intel_gt *gt)
XEHP_CCS_MODE_CSLICE_MASK);
}
- intel_uncore_write(gt->uncore, XEHP_CCS_MODE, mode);
+ return mode;
}
diff --git a/sys/dev/pci/drm/i915/gt/intel_gt_ccs_mode.h b/sys/dev/pci/drm/i915/gt/intel_gt_ccs_mode.h
index 9e5549caeb2..55547f2ff42 100644
--- a/sys/dev/pci/drm/i915/gt/intel_gt_ccs_mode.h
+++ b/sys/dev/pci/drm/i915/gt/intel_gt_ccs_mode.h
@@ -8,6 +8,6 @@
struct intel_gt;
-void intel_gt_apply_ccs_mode(struct intel_gt *gt);
+unsigned int intel_gt_apply_ccs_mode(struct intel_gt *gt);
#endif /* __INTEL_GT_CCS_MODE_H__ */
diff --git a/sys/dev/pci/drm/i915/gt/intel_workarounds.c b/sys/dev/pci/drm/i915/gt/intel_workarounds.c
index be060b32bd9..8fbb0686c53 100644
--- a/sys/dev/pci/drm/i915/gt/intel_workarounds.c
+++ b/sys/dev/pci/drm/i915/gt/intel_workarounds.c
@@ -2828,6 +2828,7 @@ add_render_compute_tuning_settings(struct intel_gt *gt,
static void ccs_engine_wa_mode(struct intel_engine_cs *engine, struct i915_wa_list *wal)
{
struct intel_gt *gt = engine->gt;
+ u32 mode;
if (!IS_DG2(gt->i915))
return;
@@ -2844,7 +2845,8 @@ static void ccs_engine_wa_mode(struct intel_engine_cs *engine, struct i915_wa_li
* After having disabled automatic load balancing we need to
* assign all slices to a single CCS. We will call it CCS mode 1
*/
- intel_gt_apply_ccs_mode(gt);
+ mode = intel_gt_apply_ccs_mode(gt);
+ wa_masked_en(wal, XEHP_CCS_MODE, mode);
}
/*