Re: [PATCH v4] drm/i915/uncore: Use GT message helpers in uncore

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This is actually v1 not v4. Not sure how that crept in!

John.

On 1/24/2023 12:54, John.C.Harrison@xxxxxxxxx wrote:
From: John Harrison <John.C.Harrison@xxxxxxxxx>

Uncore is really part of the GT. So use the GT specific debug/error
message helpers so as to get the GT index in the prints.

Signed-off-by: John Harrison <John.C.Harrison@xxxxxxxxx>
---
  drivers/gpu/drm/i915/intel_uncore.c | 133 +++++++++++++---------------
  1 file changed, 63 insertions(+), 70 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 8dee9e62a73ee..4e357477c6592 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -25,6 +25,7 @@
  #include <linux/pm_runtime.h>
#include "gt/intel_engine_regs.h"
+#include "gt/intel_gt_print.h"
  #include "gt/intel_gt_regs.h"
#include "i915_drv.h"
@@ -83,8 +84,7 @@ static void mmio_debug_resume(struct intel_uncore *uncore)
  		uncore->debug->unclaimed_mmio_check = uncore->debug->saved_mmio_check;
if (check_for_unclaimed_mmio(uncore))
-		drm_info(&uncore->i915->drm,
-			 "Invalid mmio detected during user access\n");
+		gt_info(uncore->gt, "Invalid mmio detected during user access\n");
spin_unlock(&uncore->debug->lock);
  }
@@ -179,9 +179,9 @@ static inline void
  fw_domain_wait_ack_clear(const struct intel_uncore_forcewake_domain *d)
  {
  	if (wait_ack_clear(d, FORCEWAKE_KERNEL)) {
-		drm_err(&d->uncore->i915->drm,
-			"%s: timed out waiting for forcewake ack to clear.\n",
-			intel_uncore_forcewake_domain_to_str(d->id));
+		gt_err(d->uncore->gt,
+		       "%s: timed out waiting for forcewake ack to clear.\n",
+		       intel_uncore_forcewake_domain_to_str(d->id));
  		add_taint_for_CI(d->uncore->i915, TAINT_WARN); /* CI now unreliable */
  	}
  }
@@ -228,12 +228,11 @@ fw_domain_wait_ack_with_fallback(const struct intel_uncore_forcewake_domain *d,
  		fw_clear(d, FORCEWAKE_KERNEL_FALLBACK);
  	} while (!ack_detected && pass++ < 10);
- drm_dbg(&d->uncore->i915->drm,
-		"%s had to use fallback to %s ack, 0x%x (passes %u)\n",
-		intel_uncore_forcewake_domain_to_str(d->id),
-		type == ACK_SET ? "set" : "clear",
-		fw_ack(d),
-		pass);
+	gt_dbg(d->uncore->gt, "%s had to use fallback to %s ack, 0x%x (passes %u)\n",
+	       intel_uncore_forcewake_domain_to_str(d->id),
+	       type == ACK_SET ? "set" : "clear",
+	       fw_ack(d),
+	       pass);
return ack_detected ? 0 : -ETIMEDOUT;
  }
@@ -258,9 +257,8 @@ static inline void
  fw_domain_wait_ack_set(const struct intel_uncore_forcewake_domain *d)
  {
  	if (wait_ack_set(d, FORCEWAKE_KERNEL)) {
-		drm_err(&d->uncore->i915->drm,
-			"%s: timed out waiting for forcewake ack request.\n",
-			intel_uncore_forcewake_domain_to_str(d->id));
+		gt_err(d->uncore->gt, "%s: timed out waiting for forcewake ack request.\n",
+		       intel_uncore_forcewake_domain_to_str(d->id));
  		add_taint_for_CI(d->uncore->i915, TAINT_WARN); /* CI now unreliable */
  	}
  }
@@ -366,9 +364,9 @@ static void __gen6_gt_wait_for_thread_c0(struct intel_uncore *uncore)
  	 * w/a for a sporadic read returning 0 by waiting for the GT
  	 * thread to wake up.
  	 */
-	drm_WARN_ONCE(&uncore->i915->drm,
-		      wait_for_atomic_us(gt_thread_status(uncore) == 0, 5000),
-		      "GT thread status wait timed out\n");
+	gt_WARN_ONCE(uncore->gt,
+		     wait_for_atomic_us(gt_thread_status(uncore) == 0, 5000),
+		     "GT thread status wait timed out\n");
  }
static void fw_domains_get_with_thread_status(struct intel_uncore *uncore,
@@ -402,8 +400,7 @@ static void __gen6_gt_wait_for_fifo(struct intel_uncore *uncore)
  		if (wait_for_atomic((n = fifo_free_entries(uncore)) >
  				    GT_FIFO_NUM_RESERVED_ENTRIES,
  				    GT_FIFO_TIMEOUT_MS)) {
-			drm_dbg(&uncore->i915->drm,
-				"GT_FIFO timeout, entries: %u\n", n);
+			gt_dbg(uncore->gt, "GT_FIFO timeout, entries: %u\n", n);
  			return;
  		}
  	}
@@ -476,7 +473,7 @@ intel_uncore_forcewake_reset(struct intel_uncore *uncore)
  			break;
if (--retry_count == 0) {
-			drm_err(&uncore->i915->drm, "Timed out waiting for forcewake timers to finish\n");
+			gt_err(uncore->gt, "Timed out waiting for forcewake timers to finish\n");
  			break;
  		}
@@ -484,7 +481,7 @@ intel_uncore_forcewake_reset(struct intel_uncore *uncore)
  		cond_resched();
  	}
- drm_WARN_ON(&uncore->i915->drm, active_domains);
+	gt_WARN_ON(uncore->gt, active_domains);
fw = uncore->fw_domains_active;
  	if (fw)
@@ -520,8 +517,7 @@ fpga_check_for_unclaimed_mmio(struct intel_uncore *uncore)
  	 * to recognize when MMIO accesses are just busted.
  	 */
  	if (unlikely(dbg == ~0))
-		drm_err(&uncore->i915->drm,
-			"Lost access to MMIO BAR; all registers now read back as 0xFFFFFFFF!\n");
+		gt_err(uncore->gt, "Lost access to MMIO BAR; all registers now read back as 0xFFFFFFFF!\n");
__raw_uncore_write32(uncore, FPGA_DBG, FPGA_DBG_RM_NOCLAIM); @@ -550,7 +546,7 @@ gen6_check_for_fifo_debug(struct intel_uncore *uncore)
  	fifodbg = __raw_uncore_read32(uncore, GTFIFODBG);
if (unlikely(fifodbg)) {
-		drm_dbg(&uncore->i915->drm, "GTFIFODBG = 0x08%x\n", fifodbg);
+		gt_dbg(uncore->gt, "GTFIFODBG = 0x08%x\n", fifodbg);
  		__raw_uncore_write32(uncore, GTFIFODBG, fifodbg);
  	}
@@ -622,7 +618,7 @@ void intel_uncore_resume_early(struct intel_uncore *uncore)
  	unsigned int restore_forcewake;
if (intel_uncore_unclaimed_mmio(uncore))
-		drm_dbg(&uncore->i915->drm, "unclaimed mmio detected on resume, clearing\n");
+		gt_dbg(uncore->gt, "unclaimed mmio detected on resume, clearing\n");
if (!intel_uncore_has_forcewake(uncore))
  		return;
@@ -847,9 +843,9 @@ void assert_forcewakes_inactive(struct intel_uncore *uncore)
  	if (!uncore->fw_get_funcs)
  		return;
- drm_WARN(&uncore->i915->drm, uncore->fw_domains_active,
-		 "Expected all fw_domains to be inactive, but %08x are still on\n",
-		 uncore->fw_domains_active);
+	gt_WARN(uncore->gt, uncore->fw_domains_active,
+		"Expected all fw_domains to be inactive, but %08x are still on\n",
+		uncore->fw_domains_active);
  }
void assert_forcewakes_active(struct intel_uncore *uncore,
@@ -869,9 +865,9 @@ void assert_forcewakes_active(struct intel_uncore *uncore,
  	assert_rpm_wakelock_held(uncore->rpm);
fw_domains &= uncore->fw_domains;
-	drm_WARN(&uncore->i915->drm, fw_domains & ~uncore->fw_domains_active,
-		 "Expected %08x fw_domains to be active, but %08x are off\n",
-		 fw_domains, fw_domains & ~uncore->fw_domains_active);
+	gt_WARN(uncore->gt, fw_domains & ~uncore->fw_domains_active,
+		"Expected %08x fw_domains to be active, but %08x are off\n",
+		fw_domains, fw_domains & ~uncore->fw_domains_active);
/*
  	 * Check that the caller has an explicit wakeref and we don't mistake
@@ -884,9 +880,9 @@ void assert_forcewakes_active(struct intel_uncore *uncore,
  		if (uncore->fw_domains_timer & domain->mask)
  			expect++; /* pending automatic release */
- if (drm_WARN(&uncore->i915->drm, actual < expect,
-			     "Expected domain %d to be held awake by caller, count=%d\n",
-			     domain->id, actual))
+		if (gt_WARN(uncore->gt, actual < expect,
+			    "Expected domain %d to be held awake by caller, count=%d\n",
+			    domain->id, actual))
  			break;
  	}
@@ -955,9 +951,9 @@ find_fw_domain(struct intel_uncore *uncore, u32 offset)
  	if (entry->domains == FORCEWAKE_ALL)
  		return uncore->fw_domains;
- drm_WARN(&uncore->i915->drm, entry->domains & ~uncore->fw_domains,
-		 "Uninitialized forcewake domain(s) 0x%x accessed at 0x%x\n",
-		 entry->domains & ~uncore->fw_domains, offset);
+	gt_WARN(uncore->gt, entry->domains & ~uncore->fw_domains,
+		"Uninitialized forcewake domain(s) 0x%x accessed at 0x%x\n",
+		entry->domains & ~uncore->fw_domains, offset);
return entry->domains;
  }
@@ -1190,7 +1186,7 @@ static int mmio_range_cmp(u32 key, const struct i915_range *range)
static bool is_shadowed(struct intel_uncore *uncore, u32 offset)
  {
-	if (drm_WARN_ON(&uncore->i915->drm, !uncore->shadowed_reg_table))
+	if (gt_WARN_ON(uncore->gt, !uncore->shadowed_reg_table))
  		return false;
if (IS_GSI_REG(offset))
@@ -1898,11 +1894,11 @@ __unclaimed_reg_debug(struct intel_uncore *uncore,
  		      const i915_reg_t reg,
  		      const bool read)
  {
-	if (drm_WARN(&uncore->i915->drm,
-		     check_for_unclaimed_mmio(uncore),
-		     "Unclaimed %s register 0x%x\n",
-		     read ? "read from" : "write to",
-		     i915_mmio_reg_offset(reg)))
+	if (gt_WARN(uncore->gt,
+		    check_for_unclaimed_mmio(uncore),
+		    "Unclaimed %s register 0x%x\n",
+		    read ? "read from" : "write to",
+		    i915_mmio_reg_offset(reg)))
  		/* Only report the first N failures */
  		uncore->i915->params.mmio_debug--;
  }
@@ -1913,10 +1909,10 @@ __unclaimed_previous_reg_debug(struct intel_uncore *uncore,
  			       const bool read)
  {
  	if (check_for_unclaimed_mmio(uncore))
-		drm_dbg(&uncore->i915->drm,
-			"Unclaimed access detected before %s register 0x%x\n",
-			read ? "read from" : "write to",
-			i915_mmio_reg_offset(reg));
+		gt_dbg(uncore->gt,
+		       "Unclaimed access detected before %s register 0x%x\n",
+		       read ? "read from" : "write to",
+		       i915_mmio_reg_offset(reg));
  }
static inline void
@@ -2201,8 +2197,8 @@ static int __fw_domain_init(struct intel_uncore *uncore,
  	if (!d)
  		return -ENOMEM;
- drm_WARN_ON(&uncore->i915->drm, !i915_mmio_reg_valid(reg_set));
-	drm_WARN_ON(&uncore->i915->drm, !i915_mmio_reg_valid(reg_ack));
+	gt_WARN_ON(uncore->gt, !i915_mmio_reg_valid(reg_set));
+	gt_WARN_ON(uncore->gt, !i915_mmio_reg_valid(reg_ack));
d->uncore = uncore;
  	d->wake_count = 0;
@@ -2254,8 +2250,8 @@ static void fw_domain_fini(struct intel_uncore *uncore,
  		return;
uncore->fw_domains &= ~BIT(domain_id);
-	drm_WARN_ON(&uncore->i915->drm, d->wake_count);
-	drm_WARN_ON(&uncore->i915->drm, hrtimer_cancel(&d->timer));
+	gt_WARN_ON(uncore->gt, d->wake_count);
+	gt_WARN_ON(uncore->gt, hrtimer_cancel(&d->timer));
  	kfree(d);
  }
@@ -2388,8 +2384,8 @@ static int intel_uncore_fw_domains_init(struct intel_uncore *uncore)
  		spin_unlock_irq(&uncore->lock);
if (!(ecobus & FORCEWAKE_MT_ENABLE)) {
-			drm_info(&i915->drm, "No MT forcewake available on Ivybridge, this can result in issues\n");
-			drm_info(&i915->drm, "when using vblank-synced partial screen updates.\n");
+			gt_info(uncore->gt, "No MT forcewake available on Ivybridge, this can result in issues\n");
+			gt_info(uncore->gt, "when using vblank-synced partial screen updates.\n");
  			fw_domain_fini(uncore, FW_DOMAIN_ID_RENDER);
  			fw_domain_init(uncore, FW_DOMAIN_ID_RENDER,
  				       FORCEWAKE, FORCEWAKE_ACK);
@@ -2403,7 +2399,7 @@ static int intel_uncore_fw_domains_init(struct intel_uncore *uncore)
  #undef fw_domain_init
/* All future platforms are expected to require complex power gating */
-	drm_WARN_ON(&i915->drm, !ret && uncore->fw_domains == 0);
+	gt_WARN_ON(uncore->gt, !ret && uncore->fw_domains == 0);
out:
  	if (ret)
@@ -2487,7 +2483,7 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr)
uncore->regs = ioremap(phys_addr, mmio_size);
  	if (uncore->regs == NULL) {
-		drm_err(&i915->drm, "failed to map registers\n");
+		gt_err(uncore->gt, "failed to map registers\n");
  		return -EIO;
  	}
@@ -2615,7 +2611,7 @@ int intel_uncore_init_mmio(struct intel_uncore *uncore)
  	 */
  	if (IS_DGFX(i915) &&
  	    !(__raw_uncore_read32(uncore, GU_CNTL) & LMEM_INIT)) {
-		drm_err(&i915->drm, "LMEM not initialized by firmware\n");
+		gt_err(uncore->gt, "LMEM not initialized by firmware\n");
  		return -ENODEV;
  	}
@@ -2646,7 +2642,7 @@ int intel_uncore_init_mmio(struct intel_uncore *uncore) /* clear out unclaimed reg detection bit */
  	if (intel_uncore_unclaimed_mmio(uncore))
-		drm_dbg(&i915->drm, "unclaimed mmio detected on uncore init, clearing\n");
+		gt_dbg(uncore->gt, "unclaimed mmio detected on uncore init, clearing\n");
return 0;
  }
@@ -2721,11 +2717,10 @@ void intel_uncore_prune_engine_fw_domains(struct intel_uncore *uncore,
   */
  static void driver_initiated_flr(struct intel_uncore *uncore)
  {
-	struct drm_i915_private *i915 = uncore->i915;
  	const unsigned int flr_timeout_ms = 3000; /* specs recommend a 3s wait */
  	int ret;
- drm_dbg(&i915->drm, "Triggering Driver-FLR\n");
+	gt_dbg(uncore->gt, "Triggering Driver-FLR\n");
/*
  	 * Make sure any pending FLR requests have cleared by waiting for the
@@ -2738,9 +2733,7 @@ static void driver_initiated_flr(struct intel_uncore *uncore)
  	 */
  	ret = intel_wait_for_register_fw(uncore, GU_CNTL, DRIVERFLR, 0, flr_timeout_ms);
  	if (ret) {
-		drm_err(&i915->drm,
-			"Failed to wait for Driver-FLR bit to clear! %d\n",
-			ret);
+		gt_err(uncore->gt, "Failed to wait for Driver-FLR bit to clear! %d\n", ret);
  		return;
  	}
  	intel_uncore_write_fw(uncore, GU_DEBUG, DRIVERFLR_STATUS);
@@ -2752,7 +2745,7 @@ static void driver_initiated_flr(struct intel_uncore *uncore)
  					 DRIVERFLR_STATUS, DRIVERFLR_STATUS,
  					 flr_timeout_ms);
  	if (ret) {
-		drm_err(&i915->drm, "wait for Driver-FLR completion failed! %d\n", ret);
+		gt_err(uncore->gt, "wait for Driver-FLR completion failed! %d\n", ret);
  		return;
  	}
@@ -2911,7 +2904,7 @@ intel_uncore_arm_unclaimed_mmio_detection(struct intel_uncore *uncore)
  {
  	bool ret = false;
- if (drm_WARN_ON(&uncore->i915->drm, !uncore->debug))
+	if (gt_WARN_ON(uncore->gt, !uncore->debug))
  		return false;
spin_lock_irq(&uncore->debug->lock);
@@ -2921,10 +2914,10 @@ intel_uncore_arm_unclaimed_mmio_detection(struct intel_uncore *uncore)
if (unlikely(check_for_unclaimed_mmio(uncore))) {
  		if (!uncore->i915->params.mmio_debug) {
-			drm_dbg(&uncore->i915->drm,
-				"Unclaimed register detected, "
-				"enabling oneshot unclaimed register reporting. "
-				"Please use i915.mmio_debug=N for more information.\n");
+			gt_dbg(uncore->gt,
+			       "Unclaimed register detected, "
+			       "enabling oneshot unclaimed register reporting. "
+			       "Please use i915.mmio_debug=N for more information.\n");
  			uncore->i915->params.mmio_debug++;
  		}
  		uncore->debug->unclaimed_mmio_check--;
@@ -2957,7 +2950,7 @@ intel_uncore_forcewake_for_reg(struct intel_uncore *uncore,
  {
  	enum forcewake_domains fw_domains = 0;
- drm_WARN_ON(&uncore->i915->drm, !op);
+	gt_WARN_ON(uncore->gt, !op);
if (!intel_uncore_has_forcewake(uncore))
  		return 0;
@@ -2968,7 +2961,7 @@ intel_uncore_forcewake_for_reg(struct intel_uncore *uncore,
  	if (op & FW_REG_WRITE)
  		fw_domains |= uncore->funcs.write_fw_domains(uncore, reg);
- drm_WARN_ON(&uncore->i915->drm, fw_domains & ~uncore->fw_domains);
+	gt_WARN_ON(uncore->gt, fw_domains & ~uncore->fw_domains);
return fw_domains;
  }




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