[PATCH v3 1/2] drm/i915: Add a wrapper for frequency debugfs

[Vinay Belgaumkar <vinay.belgaumkar@intel.com>]

Move it to the RPS source file.

v2: Separate out code movement and functional changes (Jani)

Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
---
 drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c | 157 +----------------
 drivers/gpu/drm/i915/gt/intel_rps.c           | 163 ++++++++++++++++++
 drivers/gpu/drm/i915/gt/intel_rps.h           |   3 +
 3 files changed, 167 insertions(+), 156 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 10f680dbd7b6..40d0a3be42ac 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c
@@ -344,162 +344,7 @@ void intel_gt_pm_frequency_dump(struct intel_gt *gt, struct drm_printer *p)
 		drm_printf(p, "efficient (RPe) frequency: %d MHz\n",
 			   intel_gpu_freq(rps, rps->efficient_freq));
 	} else if (GRAPHICS_VER(i915) >= 6) {
-		u32 rp_state_limits;
-		u32 gt_perf_status;
-		struct intel_rps_freq_caps caps;
-		u32 rpmodectl, rpinclimit, rpdeclimit;
-		u32 rpstat, cagf, reqf;
-		u32 rpcurupei, rpcurup, rpprevup;
-		u32 rpcurdownei, rpcurdown, rpprevdown;
-		u32 rpupei, rpupt, rpdownei, rpdownt;
-		u32 pm_ier, pm_imr, pm_isr, pm_iir, pm_mask;
-
-		rp_state_limits = intel_uncore_read(uncore, GEN6_RP_STATE_LIMITS);
-		gen6_rps_get_freq_caps(rps, &caps);
-		if (IS_GEN9_LP(i915))
-			gt_perf_status = intel_uncore_read(uncore, BXT_GT_PERF_STATUS);
-		else
-			gt_perf_status = intel_uncore_read(uncore, GEN6_GT_PERF_STATUS);
-
-		/* RPSTAT1 is in the GT power well */
-		intel_uncore_forcewake_get(uncore, FORCEWAKE_ALL);
-
-		reqf = intel_uncore_read(uncore, GEN6_RPNSWREQ);
-		if (GRAPHICS_VER(i915) >= 9) {
-			reqf >>= 23;
-		} else {
-			reqf &= ~GEN6_TURBO_DISABLE;
-			if (IS_HASWELL(i915) || IS_BROADWELL(i915))
-				reqf >>= 24;
-			else
-				reqf >>= 25;
-		}
-		reqf = intel_gpu_freq(rps, reqf);
-
-		rpmodectl = intel_uncore_read(uncore, GEN6_RP_CONTROL);
-		rpinclimit = intel_uncore_read(uncore, GEN6_RP_UP_THRESHOLD);
-		rpdeclimit = intel_uncore_read(uncore, GEN6_RP_DOWN_THRESHOLD);
-
-		rpstat = intel_uncore_read(uncore, GEN6_RPSTAT1);
-		rpcurupei = intel_uncore_read(uncore, GEN6_RP_CUR_UP_EI) & GEN6_CURICONT_MASK;
-		rpcurup = intel_uncore_read(uncore, GEN6_RP_CUR_UP) & GEN6_CURBSYTAVG_MASK;
-		rpprevup = intel_uncore_read(uncore, GEN6_RP_PREV_UP) & GEN6_CURBSYTAVG_MASK;
-		rpcurdownei = intel_uncore_read(uncore, GEN6_RP_CUR_DOWN_EI) & GEN6_CURIAVG_MASK;
-		rpcurdown = intel_uncore_read(uncore, GEN6_RP_CUR_DOWN) & GEN6_CURBSYTAVG_MASK;
-		rpprevdown = intel_uncore_read(uncore, GEN6_RP_PREV_DOWN) & GEN6_CURBSYTAVG_MASK;
-
-		rpupei = intel_uncore_read(uncore, GEN6_RP_UP_EI);
-		rpupt = intel_uncore_read(uncore, GEN6_RP_UP_THRESHOLD);
-
-		rpdownei = intel_uncore_read(uncore, GEN6_RP_DOWN_EI);
-		rpdownt = intel_uncore_read(uncore, GEN6_RP_DOWN_THRESHOLD);
-
-		cagf = intel_rps_read_actual_frequency(rps);
-
-		intel_uncore_forcewake_put(uncore, FORCEWAKE_ALL);
-
-		if (GRAPHICS_VER(i915) >= 11) {
-			pm_ier = intel_uncore_read(uncore, GEN11_GPM_WGBOXPERF_INTR_ENABLE);
-			pm_imr = intel_uncore_read(uncore, GEN11_GPM_WGBOXPERF_INTR_MASK);
-			/*
-			 * The equivalent to the PM ISR & IIR cannot be read
-			 * without affecting the current state of the system
-			 */
-			pm_isr = 0;
-			pm_iir = 0;
-		} else if (GRAPHICS_VER(i915) >= 8) {
-			pm_ier = intel_uncore_read(uncore, GEN8_GT_IER(2));
-			pm_imr = intel_uncore_read(uncore, GEN8_GT_IMR(2));
-			pm_isr = intel_uncore_read(uncore, GEN8_GT_ISR(2));
-			pm_iir = intel_uncore_read(uncore, GEN8_GT_IIR(2));
-		} else {
-			pm_ier = intel_uncore_read(uncore, GEN6_PMIER);
-			pm_imr = intel_uncore_read(uncore, GEN6_PMIMR);
-			pm_isr = intel_uncore_read(uncore, GEN6_PMISR);
-			pm_iir = intel_uncore_read(uncore, GEN6_PMIIR);
-		}
-		pm_mask = intel_uncore_read(uncore, GEN6_PMINTRMSK);
-
-		drm_printf(p, "Video Turbo Mode: %s\n",
-			   str_yes_no(rpmodectl & GEN6_RP_MEDIA_TURBO));
-		drm_printf(p, "HW control enabled: %s\n",
-			   str_yes_no(rpmodectl & GEN6_RP_ENABLE));
-		drm_printf(p, "SW control enabled: %s\n",
-			   str_yes_no((rpmodectl & GEN6_RP_MEDIA_MODE_MASK) == GEN6_RP_MEDIA_SW_MODE));
-
-		drm_printf(p, "PM IER=0x%08x IMR=0x%08x, MASK=0x%08x\n",
-			   pm_ier, pm_imr, pm_mask);
-		if (GRAPHICS_VER(i915) <= 10)
-			drm_printf(p, "PM ISR=0x%08x IIR=0x%08x\n",
-				   pm_isr, pm_iir);
-		drm_printf(p, "pm_intrmsk_mbz: 0x%08x\n",
-			   rps->pm_intrmsk_mbz);
-		drm_printf(p, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
-		drm_printf(p, "Render p-state ratio: %d\n",
-			   (gt_perf_status & (GRAPHICS_VER(i915) >= 9 ? 0x1ff00 : 0xff00)) >> 8);
-		drm_printf(p, "Render p-state VID: %d\n",
-			   gt_perf_status & 0xff);
-		drm_printf(p, "Render p-state limit: %d\n",
-			   rp_state_limits & 0xff);
-		drm_printf(p, "RPSTAT1: 0x%08x\n", rpstat);
-		drm_printf(p, "RPMODECTL: 0x%08x\n", rpmodectl);
-		drm_printf(p, "RPINCLIMIT: 0x%08x\n", rpinclimit);
-		drm_printf(p, "RPDECLIMIT: 0x%08x\n", rpdeclimit);
-		drm_printf(p, "RPNSWREQ: %dMHz\n", reqf);
-		drm_printf(p, "CAGF: %dMHz\n", cagf);
-		drm_printf(p, "RP CUR UP EI: %d (%lldns)\n",
-			   rpcurupei,
-			   intel_gt_pm_interval_to_ns(gt, rpcurupei));
-		drm_printf(p, "RP CUR UP: %d (%lldns)\n",
-			   rpcurup, intel_gt_pm_interval_to_ns(gt, rpcurup));
-		drm_printf(p, "RP PREV UP: %d (%lldns)\n",
-			   rpprevup, intel_gt_pm_interval_to_ns(gt, rpprevup));
-		drm_printf(p, "Up threshold: %d%%\n",
-			   rps->power.up_threshold);
-		drm_printf(p, "RP UP EI: %d (%lldns)\n",
-			   rpupei, intel_gt_pm_interval_to_ns(gt, rpupei));
-		drm_printf(p, "RP UP THRESHOLD: %d (%lldns)\n",
-			   rpupt, intel_gt_pm_interval_to_ns(gt, rpupt));
-
-		drm_printf(p, "RP CUR DOWN EI: %d (%lldns)\n",
-			   rpcurdownei,
-			   intel_gt_pm_interval_to_ns(gt, rpcurdownei));
-		drm_printf(p, "RP CUR DOWN: %d (%lldns)\n",
-			   rpcurdown,
-			   intel_gt_pm_interval_to_ns(gt, rpcurdown));
-		drm_printf(p, "RP PREV DOWN: %d (%lldns)\n",
-			   rpprevdown,
-			   intel_gt_pm_interval_to_ns(gt, rpprevdown));
-		drm_printf(p, "Down threshold: %d%%\n",
-			   rps->power.down_threshold);
-		drm_printf(p, "RP DOWN EI: %d (%lldns)\n",
-			   rpdownei, intel_gt_pm_interval_to_ns(gt, rpdownei));
-		drm_printf(p, "RP DOWN THRESHOLD: %d (%lldns)\n",
-			   rpdownt, intel_gt_pm_interval_to_ns(gt, rpdownt));
-
-		drm_printf(p, "Lowest (RPN) frequency: %dMHz\n",
-			   intel_gpu_freq(rps, caps.min_freq));
-		drm_printf(p, "Nominal (RP1) frequency: %dMHz\n",
-			   intel_gpu_freq(rps, caps.rp1_freq));
-		drm_printf(p, "Max non-overclocked (RP0) frequency: %dMHz\n",
-			   intel_gpu_freq(rps, caps.rp0_freq));
-		drm_printf(p, "Max overclocked frequency: %dMHz\n",
-			   intel_gpu_freq(rps, rps->max_freq));
-
-		drm_printf(p, "Current freq: %d MHz\n",
-			   intel_gpu_freq(rps, rps->cur_freq));
-		drm_printf(p, "Actual freq: %d MHz\n", cagf);
-		drm_printf(p, "Idle freq: %d MHz\n",
-			   intel_gpu_freq(rps, rps->idle_freq));
-		drm_printf(p, "Min freq: %d MHz\n",
-			   intel_gpu_freq(rps, rps->min_freq));
-		drm_printf(p, "Boost freq: %d MHz\n",
-			   intel_gpu_freq(rps, rps->boost_freq));
-		drm_printf(p, "Max freq: %d MHz\n",
-			   intel_gpu_freq(rps, rps->max_freq));
-		drm_printf(p,
-			   "efficient (RPe) frequency: %d MHz\n",
-			   intel_gpu_freq(rps, rps->efficient_freq));
+		gen6_rps_frequency_dump(rps, p);
 	} else {
 		drm_puts(p, "no P-state info available\n");
 	}
diff --git a/drivers/gpu/drm/i915/gt/intel_rps.c b/drivers/gpu/drm/i915/gt/intel_rps.c
index 17b40b625e31..737db780db00 100644
--- a/drivers/gpu/drm/i915/gt/intel_rps.c
+++ b/drivers/gpu/drm/i915/gt/intel_rps.c
@@ -2219,6 +2219,169 @@ u32 intel_rps_get_rpn_frequency(struct intel_rps *rps)
 		return intel_gpu_freq(rps, rps->min_freq);
 }
 
+void gen6_rps_frequency_dump(struct intel_rps *rps, struct drm_printer *p)
+{
+	struct intel_gt *gt = rps_to_gt(rps);
+	struct drm_i915_private *i915 = gt->i915;
+	struct intel_uncore *uncore = gt->uncore;
+	struct intel_rps_freq_caps caps;
+	u32 rp_state_limits;
+	u32 gt_perf_status;
+	u32 rpmodectl, rpinclimit, rpdeclimit;
+	u32 rpstat, cagf, reqf;
+	u32 rpcurupei, rpcurup, rpprevup;
+	u32 rpcurdownei, rpcurdown, rpprevdown;
+	u32 rpupei, rpupt, rpdownei, rpdownt;
+	u32 pm_ier, pm_imr, pm_isr, pm_iir, pm_mask;
+
+	rp_state_limits = intel_uncore_read(uncore, GEN6_RP_STATE_LIMITS);
+	gen6_rps_get_freq_caps(rps, &caps);
+	if (IS_GEN9_LP(i915))
+		gt_perf_status = intel_uncore_read(uncore, BXT_GT_PERF_STATUS);
+	else
+		gt_perf_status = intel_uncore_read(uncore, GEN6_GT_PERF_STATUS);
+
+	/* RPSTAT1 is in the GT power well */
+	intel_uncore_forcewake_get(uncore, FORCEWAKE_ALL);
+
+	reqf = intel_uncore_read(uncore, GEN6_RPNSWREQ);
+	if (GRAPHICS_VER(i915) >= 9) {
+		reqf >>= 23;
+	} else {
+		reqf &= ~GEN6_TURBO_DISABLE;
+		if (IS_HASWELL(i915) || IS_BROADWELL(i915))
+			reqf >>= 24;
+		else
+			reqf >>= 25;
+	}
+	reqf = intel_gpu_freq(rps, reqf);
+
+	rpmodectl = intel_uncore_read(uncore, GEN6_RP_CONTROL);
+	rpinclimit = intel_uncore_read(uncore, GEN6_RP_UP_THRESHOLD);
+	rpdeclimit = intel_uncore_read(uncore, GEN6_RP_DOWN_THRESHOLD);
+
+	rpstat = intel_uncore_read(uncore, GEN6_RPSTAT1);
+	rpcurupei = intel_uncore_read(uncore, GEN6_RP_CUR_UP_EI) & GEN6_CURICONT_MASK;
+	rpcurup = intel_uncore_read(uncore, GEN6_RP_CUR_UP) & GEN6_CURBSYTAVG_MASK;
+	rpprevup = intel_uncore_read(uncore, GEN6_RP_PREV_UP) & GEN6_CURBSYTAVG_MASK;
+	rpcurdownei = intel_uncore_read(uncore, GEN6_RP_CUR_DOWN_EI) & GEN6_CURIAVG_MASK;
+	rpcurdown = intel_uncore_read(uncore, GEN6_RP_CUR_DOWN) & GEN6_CURBSYTAVG_MASK;
+	rpprevdown = intel_uncore_read(uncore, GEN6_RP_PREV_DOWN) & GEN6_CURBSYTAVG_MASK;
+
+	rpupei = intel_uncore_read(uncore, GEN6_RP_UP_EI);
+	rpupt = intel_uncore_read(uncore, GEN6_RP_UP_THRESHOLD);
+
+	rpdownei = intel_uncore_read(uncore, GEN6_RP_DOWN_EI);
+	rpdownt = intel_uncore_read(uncore, GEN6_RP_DOWN_THRESHOLD);
+
+	cagf = intel_rps_read_actual_frequency(rps);
+
+	intel_uncore_forcewake_put(uncore, FORCEWAKE_ALL);
+
+	if (GRAPHICS_VER(i915) >= 11) {
+		pm_ier = intel_uncore_read(uncore, GEN11_GPM_WGBOXPERF_INTR_ENABLE);
+		pm_imr = intel_uncore_read(uncore, GEN11_GPM_WGBOXPERF_INTR_MASK);
+		/*
+		 * The equivalent to the PM ISR & IIR cannot be read
+		 * without affecting the current state of the system
+		 */
+		pm_isr = 0;
+		pm_iir = 0;
+	} else if (GRAPHICS_VER(i915) >= 8) {
+		pm_ier = intel_uncore_read(uncore, GEN8_GT_IER(2));
+		pm_imr = intel_uncore_read(uncore, GEN8_GT_IMR(2));
+		pm_isr = intel_uncore_read(uncore, GEN8_GT_ISR(2));
+		pm_iir = intel_uncore_read(uncore, GEN8_GT_IIR(2));
+	} else {
+		pm_ier = intel_uncore_read(uncore, GEN6_PMIER);
+		pm_imr = intel_uncore_read(uncore, GEN6_PMIMR);
+		pm_isr = intel_uncore_read(uncore, GEN6_PMISR);
+		pm_iir = intel_uncore_read(uncore, GEN6_PMIIR);
+	}
+	pm_mask = intel_uncore_read(uncore, GEN6_PMINTRMSK);
+
+	drm_printf(p, "Video Turbo Mode: %s\n",
+		   str_yes_no(rpmodectl & GEN6_RP_MEDIA_TURBO));
+	drm_printf(p, "HW control enabled: %s\n",
+		   str_yes_no(rpmodectl & GEN6_RP_ENABLE));
+	drm_printf(p, "SW control enabled: %s\n",
+		   str_yes_no((rpmodectl & GEN6_RP_MEDIA_MODE_MASK) == GEN6_RP_MEDIA_SW_MODE));
+
+	drm_printf(p, "PM IER=0x%08x IMR=0x%08x, MASK=0x%08x\n",
+		   pm_ier, pm_imr, pm_mask);
+	if (GRAPHICS_VER(i915) <= 10)
+		drm_printf(p, "PM ISR=0x%08x IIR=0x%08x\n",
+			   pm_isr, pm_iir);
+	drm_printf(p, "pm_intrmsk_mbz: 0x%08x\n",
+		   rps->pm_intrmsk_mbz);
+	drm_printf(p, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
+	drm_printf(p, "Render p-state ratio: %d\n",
+		   (gt_perf_status & (GRAPHICS_VER(i915) >= 9 ? 0x1ff00 : 0xff00)) >> 8);
+	drm_printf(p, "Render p-state VID: %d\n",
+		   gt_perf_status & 0xff);
+	drm_printf(p, "Render p-state limit: %d\n",
+		   rp_state_limits & 0xff);
+	drm_printf(p, "RPSTAT1: 0x%08x\n", rpstat);
+	drm_printf(p, "RPMODECTL: 0x%08x\n", rpmodectl);
+	drm_printf(p, "RPINCLIMIT: 0x%08x\n", rpinclimit);
+	drm_printf(p, "RPDECLIMIT: 0x%08x\n", rpdeclimit);
+	drm_printf(p, "RPNSWREQ: %dMHz\n", reqf);
+	drm_printf(p, "CAGF: %dMHz\n", cagf);
+	drm_printf(p, "RP CUR UP EI: %d (%lldns)\n",
+		   rpcurupei,
+		   intel_gt_pm_interval_to_ns(gt, rpcurupei));
+	drm_printf(p, "RP CUR UP: %d (%lldns)\n",
+		   rpcurup, intel_gt_pm_interval_to_ns(gt, rpcurup));
+	drm_printf(p, "RP PREV UP: %d (%lldns)\n",
+		   rpprevup, intel_gt_pm_interval_to_ns(gt, rpprevup));
+	drm_printf(p, "Up threshold: %d%%\n",
+		   rps->power.up_threshold);
+	drm_printf(p, "RP UP EI: %d (%lldns)\n",
+		   rpupei, intel_gt_pm_interval_to_ns(gt, rpupei));
+	drm_printf(p, "RP UP THRESHOLD: %d (%lldns)\n",
+		   rpupt, intel_gt_pm_interval_to_ns(gt, rpupt));
+
+	drm_printf(p, "RP CUR DOWN EI: %d (%lldns)\n",
+		   rpcurdownei,
+		   intel_gt_pm_interval_to_ns(gt, rpcurdownei));
+	drm_printf(p, "RP CUR DOWN: %d (%lldns)\n",
+		   rpcurdown,
+		   intel_gt_pm_interval_to_ns(gt, rpcurdown));
+	drm_printf(p, "RP PREV DOWN: %d (%lldns)\n",
+		   rpprevdown,
+		   intel_gt_pm_interval_to_ns(gt, rpprevdown));
+	drm_printf(p, "Down threshold: %d%%\n",
+		   rps->power.down_threshold);
+	drm_printf(p, "RP DOWN EI: %d (%lldns)\n",
+		   rpdownei, intel_gt_pm_interval_to_ns(gt, rpdownei));
+	drm_printf(p, "RP DOWN THRESHOLD: %d (%lldns)\n",
+		   rpdownt, intel_gt_pm_interval_to_ns(gt, rpdownt));
+
+	drm_printf(p, "Lowest (RPN) frequency: %dMHz\n",
+		   intel_gpu_freq(rps, caps.min_freq));
+	drm_printf(p, "Nominal (RP1) frequency: %dMHz\n",
+		   intel_gpu_freq(rps, caps.rp1_freq));
+	drm_printf(p, "Max non-overclocked (RP0) frequency: %dMHz\n",
+		   intel_gpu_freq(rps, caps.rp0_freq));
+	drm_printf(p, "Max overclocked frequency: %dMHz\n",
+		   intel_gpu_freq(rps, rps->max_freq));
+
+	drm_printf(p, "Current freq: %d MHz\n",
+		   intel_gpu_freq(rps, rps->cur_freq));
+	drm_printf(p, "Actual freq: %d MHz\n", cagf);
+	drm_printf(p, "Idle freq: %d MHz\n",
+		   intel_gpu_freq(rps, rps->idle_freq));
+	drm_printf(p, "Min freq: %d MHz\n",
+		   intel_gpu_freq(rps, rps->min_freq));
+	drm_printf(p, "Boost freq: %d MHz\n",
+		   intel_gpu_freq(rps, rps->boost_freq));
+	drm_printf(p, "Max freq: %d MHz\n",
+		   intel_gpu_freq(rps, rps->max_freq));
+	drm_printf(p,
+		   "efficient (RPe) frequency: %d MHz\n",
+		   intel_gpu_freq(rps, rps->efficient_freq));
+}
+
 static int set_max_freq(struct intel_rps *rps, u32 val)
 {
 	struct drm_i915_private *i915 = rps_to_i915(rps);
diff --git a/drivers/gpu/drm/i915/gt/intel_rps.h b/drivers/gpu/drm/i915/gt/intel_rps.h
index 4509dfdc52e0..110300dfd438 100644
--- a/drivers/gpu/drm/i915/gt/intel_rps.h
+++ b/drivers/gpu/drm/i915/gt/intel_rps.h
@@ -10,6 +10,7 @@
 #include "i915_reg_defs.h"
 
 struct i915_request;
+struct drm_printer;
 
 void intel_rps_init_early(struct intel_rps *rps);
 void intel_rps_init(struct intel_rps *rps);
@@ -54,6 +55,8 @@ void intel_rps_lower_unslice(struct intel_rps *rps);
 u32 intel_rps_read_throttle_reason(struct intel_rps *rps);
 bool rps_read_mask_mmio(struct intel_rps *rps, i915_reg_t reg32, u32 mask);
 
+void gen6_rps_frequency_dump(struct intel_rps *rps, struct drm_printer *p);
+
 void gen5_rps_irq_handler(struct intel_rps *rps);
 void gen6_rps_irq_handler(struct intel_rps *rps, u32 pm_iir);
 void gen11_rps_irq_handler(struct intel_rps *rps, u32 pm_iir);
-- 
2.35.1