For MTL SAMedia updated relevant functions and places in the code to get
Media C6 residency.
v2: Fixed review comments (Ashutosh)
Cc: Vinay Belgaumkar <vinay.belgaumkar@xxxxxxxxx>
Cc: Ashutosh Dixit <ashutosh.dixit@xxxxxxxxx>
Cc: Chris Wilson <chris.p.wilson@xxxxxxxxx>
Signed-off-by: Badal Nilawar <badal.nilawar@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c | 60 +++++++++++++++++++
drivers/gpu/drm/i915/gt/intel_gt_regs.h | 10 ++++
drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c | 9 ++-
drivers/gpu/drm/i915/gt/intel_rc6.c | 5 +-
drivers/gpu/drm/i915/gt/selftest_rc6.c | 9 ++-
drivers/gpu/drm/i915/i915_pmu.c | 8 ++-
6 files changed, 97 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c
index 68310881a793..053167b506a9 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c
@@ -269,6 +269,64 @@ static int ilk_drpc(struct seq_file *m)
return 0;
}
+static int mtl_drpc(struct seq_file *m)
+{
+ struct intel_gt *gt = m->private;
+ struct intel_uncore *uncore = gt->uncore;
+ u32 gt_core_status, rcctl1, global_forcewake;
+ u32 mtl_powergate_enable = 0, mtl_powergate_status = 0;
+ i915_reg_t reg;
+
+ gt_core_status = intel_uncore_read(uncore, MTL_MIRROR_TARGET_WP1);
+
+ global_forcewake = intel_uncore_read(uncore, FORCEWAKE_GT_GEN9);
+
+ rcctl1 = intel_uncore_read(uncore, GEN6_RC_CONTROL);
+ mtl_powergate_enable = intel_uncore_read(uncore, GEN9_PG_ENABLE);
+ mtl_powergate_status = intel_uncore_read(uncore,
+ GEN9_PWRGT_DOMAIN_STATUS);
+
+ seq_printf(m, "RC6 Enabled: %s\n",
+ str_yes_no(rcctl1 & GEN6_RC_CTL_RC6_ENABLE));
+ if (gt->type == GT_MEDIA) {
+ seq_printf(m, "Media Well Gating Enabled: %s\n",
+ str_yes_no(mtl_powergate_enable & GEN9_MEDIA_PG_ENABLE));
+ } else {
+ seq_printf(m, "Render Well Gating Enabled: %s\n",
+ str_yes_no(mtl_powergate_enable & GEN9_RENDER_PG_ENABLE));
+ }
+
+ seq_puts(m, "Current RC state: ");
+
+ switch ((gt_core_status & MTL_CC_MASK) >> MTL_CC_SHIFT) {
+ case MTL_CC0:
+ seq_puts(m, "on\n");
+ break;
+ case MTL_CC6:
+ seq_puts(m, "RC6\n");
+ break;
+ default:
+ seq_puts(m, "Unknown\n");
+ break;
+ }
+
+ if (gt->type == GT_MEDIA)
+ seq_printf(m, "Media Power Well: %s\n",
+ (mtl_powergate_status &
+ GEN9_PWRGT_MEDIA_STATUS_MASK) ? "Up" : "Down");
+ else
+ seq_printf(m, "Render Power Well: %s\n",
+ (mtl_powergate_status &
+ GEN9_PWRGT_RENDER_STATUS_MASK) ? "Up" : "Down");
+
+ reg = (gt->type == GT_MEDIA) ? MTL_MEDIA_MC6 : GEN6_GT_GFX_RC6;
+ print_rc6_res(m, "RC6 residency since boot:", reg);
+
+ seq_printf(m, "Global Forcewake Requests: 0x%x\n", global_forcewake);
+
+ return fw_domains_show(m, NULL);
+}
+
static int drpc_show(struct seq_file *m, void *unused)
{
struct intel_gt *gt = m->private;
@@ -279,6 +337,8 @@ static int drpc_show(struct seq_file *m, void *unused)
with_intel_runtime_pm(gt->uncore->rpm, wakeref) {
if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915))
err = vlv_drpc(m);
+ else if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 70))
+ err = mtl_drpc(m);
else if (GRAPHICS_VER(i915) >= 6)
err = gen6_drpc(m);
else
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
index 7819d32db956..8a56fd873228 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
@@ -1517,6 +1517,16 @@
*/
#define MTL_MIRROR_TARGET_WP1 _MMIO(0x0C60)
#define MTL_CAGF_MASK REG_GENMASK(8, 0)
+#define MTL_CC0 0x0
+#define MTL_CC6 0x3
+#define MTL_CC_SHIFT 9
+#define MTL_CC_MASK (0xf << MTL_CC_SHIFT)
+
+/*
+ * MTL: This register contains the total MC6 residency time that SAMedia was
+ * since boot
+ */
+#define MTL_MEDIA_MC6 _MMIO(0x138048)
#define GEN11_GT_INTR_DW(x) _MMIO(0x190018 + ((x) * 4))
#define GEN11_CSME (31)
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c
index 54deae45d81f..7ab1d776673a 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c
@@ -123,7 +123,14 @@ static ssize_t rc6_enable_show(struct device *dev,
static u32 __rc6_residency_ms_show(struct intel_gt *gt)
{
- return get_residency(gt, GEN6_GT_GFX_RC6);
+ i915_reg_t reg;
+
+ if (gt->type == GT_MEDIA)
+ reg = MTL_MEDIA_MC6;
+ else
+ reg = GEN6_GT_GFX_RC6;
+
+ return get_residency(gt, reg);
}
static ssize_t rc6_residency_ms_show(struct device *dev,
diff --git a/drivers/gpu/drm/i915/gt/intel_rc6.c b/drivers/gpu/drm/i915/gt/intel_rc6.c
index f8d0523f4c18..26f71f7f07c6 100644
--- a/drivers/gpu/drm/i915/gt/intel_rc6.c
+++ b/drivers/gpu/drm/i915/gt/intel_rc6.c
@@ -745,6 +745,7 @@ u64 intel_rc6_residency_ns(struct intel_rc6 *rc6, const i915_reg_t reg)
unsigned long flags;
unsigned int i;
u32 mul, div;
+ i915_reg_t base;
if (!rc6->supported)
return 0;
@@ -756,8 +757,10 @@ u64 intel_rc6_residency_ns(struct intel_rc6 *rc6, const i915_reg_t reg)
* other so we can use the relative address, compared to the smallest
* one as the index into driver storage.
*/
+ base = (rc6_to_gt(rc6)->type == GT_MEDIA) ?
+ MTL_MEDIA_MC6 : GEN6_GT_GFX_RC6_LOCKED;
i = (i915_mmio_reg_offset(reg) -
- i915_mmio_reg_offset(GEN6_GT_GFX_RC6_LOCKED)) / sizeof(u32);
+ i915_mmio_reg_offset(base)) / sizeof(u32);
if (drm_WARN_ON_ONCE(&i915->drm, i >= ARRAY_SIZE(rc6->cur_residency)))
return 0;
diff --git a/drivers/gpu/drm/i915/gt/selftest_rc6.c b/drivers/gpu/drm/i915/gt/selftest_rc6.c
index 8c70b7e12074..28c6a4b6b8d1 100644
--- a/drivers/gpu/drm/i915/gt/selftest_rc6.c
+++ b/drivers/gpu/drm/i915/gt/selftest_rc6.c
@@ -15,11 +15,18 @@
static u64 rc6_residency(struct intel_rc6 *rc6)
{
+ struct intel_gt *gt = rc6_to_gt(rc6);
+ i915_reg_t reg;
u64 result;
/* XXX VLV_GT_MEDIA_RC6? */
- result = intel_rc6_residency_ns(rc6, GEN6_GT_GFX_RC6);
+ if (gt->type == GT_MEDIA)
+ reg = MTL_MEDIA_MC6;
+ else
+ reg = GEN6_GT_GFX_RC6;
+
+ result = intel_rc6_residency_ns(rc6, reg);
if (HAS_RC6p(rc6_to_i915(rc6)))
result += intel_rc6_residency_ns(rc6, GEN6_GT_GFX_RC6p);
if (HAS_RC6pp(rc6_to_i915(rc6)))
diff --git a/drivers/gpu/drm/i915/i915_pmu.c b/drivers/gpu/drm/i915/i915_pmu.c
index 958b37123bf1..6ec139668641 100644
--- a/drivers/gpu/drm/i915/i915_pmu.c
+++ b/drivers/gpu/drm/i915/i915_pmu.c
@@ -146,9 +146,15 @@ static bool pmu_needs_timer(struct i915_pmu *pmu, bool gpu_active)
static u64 __get_rc6(struct intel_gt *gt)
{
struct drm_i915_private *i915 = gt->i915;
+ i915_reg_t reg;
u64 val;
- val = intel_rc6_residency_ns(>->rc6, GEN6_GT_GFX_RC6);
+ if (gt->type == GT_MEDIA)
+ reg = MTL_MEDIA_MC6;
+ else
+ reg = GEN6_GT_GFX_RC6;
+
+ val = intel_rc6_residency_ns(>->rc6, reg);
if (HAS_RC6p(i915))
val += intel_rc6_residency_ns(>->rc6, GEN6_GT_GFX_RC6p);
--
2.25.1
