[Intel-gfx] [PATCH 3/7] drm/i915/pcode: Extend pcode functions for multiple gt's

Ashutosh Dixit ashutosh.dixit at intel.com
Fri May 13 01:36:55 UTC 2022


Each gt contains an independent instance of pcode. Extend pcode functions
to interface with pcode on different gt's. To avoid creating dependency of
display functionality on intel_gt, pcode function interfaces are exposed in
terms of uncore rather than intel_gt. Callers have been converted to pass
in the appropritate (i915 or intel_gt) uncore to the pcode functions.

v2: Expose pcode functions in terms of uncore rather than gt (Jani/Rodrigo)
v3: Retain previous function names to eliminate needless #defines (Rodrigo)
v4: Move out i915_pcode_init() to a separate patch (Tvrtko)
    Remove duplicated drm_err/drm_dbg from intel_pcode_init() (Tvrtko)

Cc: Tvrtko Ursulin <tvrtko.ursulin at linux.intel.com>
Cc: Jani Nikula <jani.nikula at intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit at intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
Reviewed-by: Andi Shyti <andi.shyti at linux.intel.com>
---
 drivers/gpu/drm/i915/display/hsw_ips.c        |  4 +-
 drivers/gpu/drm/i915/display/intel_bw.c       |  6 +-
 drivers/gpu/drm/i915/display/intel_cdclk.c    | 16 ++---
 .../drm/i915/display/intel_display_power.c    |  2 +-
 .../i915/display/intel_display_power_well.c   |  4 +-
 drivers/gpu/drm/i915/display/intel_hdcp.c     |  2 +-
 drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c |  4 +-
 drivers/gpu/drm/i915/gt/intel_llc.c           |  3 +-
 drivers/gpu/drm/i915/gt/intel_rc6.c           |  4 +-
 drivers/gpu/drm/i915/gt/intel_rps.c           |  4 +-
 drivers/gpu/drm/i915/gt/selftest_llc.c        |  2 +-
 drivers/gpu/drm/i915/gt/selftest_rps.c        |  2 +-
 drivers/gpu/drm/i915/i915_driver.c            |  4 +-
 drivers/gpu/drm/i915/intel_dram.c             |  2 +-
 drivers/gpu/drm/i915/intel_pcode.c            | 69 ++++++++-----------
 drivers/gpu/drm/i915/intel_pcode.h            | 14 ++--
 drivers/gpu/drm/i915/intel_pm.c               | 10 +--
 17 files changed, 70 insertions(+), 82 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/hsw_ips.c b/drivers/gpu/drm/i915/display/hsw_ips.c
index 38014e0cc9ad..861dcd2eb890 100644
--- a/drivers/gpu/drm/i915/display/hsw_ips.c
+++ b/drivers/gpu/drm/i915/display/hsw_ips.c
@@ -28,7 +28,7 @@ static void hsw_ips_enable(const struct intel_crtc_state *crtc_state)
 
 	if (IS_BROADWELL(i915)) {
 		drm_WARN_ON(&i915->drm,
-			    snb_pcode_write(i915, DISPLAY_IPS_CONTROL,
+			    snb_pcode_write(&i915->uncore, DISPLAY_IPS_CONTROL,
 					    IPS_ENABLE | IPS_PCODE_CONTROL));
 		/*
 		 * Quoting Art Runyan: "its not safe to expect any particular
@@ -62,7 +62,7 @@ bool hsw_ips_disable(const struct intel_crtc_state *crtc_state)
 
 	if (IS_BROADWELL(i915)) {
 		drm_WARN_ON(&i915->drm,
-			    snb_pcode_write(i915, DISPLAY_IPS_CONTROL, 0));
+			    snb_pcode_write(&i915->uncore, DISPLAY_IPS_CONTROL, 0));
 		/*
 		 * Wait for PCODE to finish disabling IPS. The BSpec specified
 		 * 42ms timeout value leads to occasional timeouts so use 100ms
diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c
index 37bd7b17f3d0..79269d2c476b 100644
--- a/drivers/gpu/drm/i915/display/intel_bw.c
+++ b/drivers/gpu/drm/i915/display/intel_bw.c
@@ -78,7 +78,7 @@ static int icl_pcode_read_qgv_point_info(struct drm_i915_private *dev_priv,
 	u16 dclk;
 	int ret;
 
-	ret = snb_pcode_read(dev_priv, ICL_PCODE_MEM_SUBSYSYSTEM_INFO |
+	ret = snb_pcode_read(&dev_priv->uncore, ICL_PCODE_MEM_SUBSYSYSTEM_INFO |
 			     ICL_PCODE_MEM_SS_READ_QGV_POINT_INFO(point),
 			     &val, &val2);
 	if (ret)
@@ -104,7 +104,7 @@ static int adls_pcode_read_psf_gv_point_info(struct drm_i915_private *dev_priv,
 	int ret;
 	int i;
 
-	ret = snb_pcode_read(dev_priv, ICL_PCODE_MEM_SUBSYSYSTEM_INFO |
+	ret = snb_pcode_read(&dev_priv->uncore, ICL_PCODE_MEM_SUBSYSYSTEM_INFO |
 			     ADL_PCODE_MEM_SS_READ_PSF_GV_INFO, &val, NULL);
 	if (ret)
 		return ret;
@@ -123,7 +123,7 @@ int icl_pcode_restrict_qgv_points(struct drm_i915_private *dev_priv,
 	int ret;
 
 	/* bspec says to keep retrying for at least 1 ms */
-	ret = skl_pcode_request(dev_priv, ICL_PCODE_SAGV_DE_MEM_SS_CONFIG,
+	ret = skl_pcode_request(&dev_priv->uncore, ICL_PCODE_SAGV_DE_MEM_SS_CONFIG,
 				points_mask,
 				ICL_PCODE_REP_QGV_MASK | ADLS_PCODE_REP_PSF_MASK,
 				ICL_PCODE_REP_QGV_SAFE | ADLS_PCODE_REP_PSF_SAFE,
diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c
index b2017d8161b4..6e80162632dd 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.c
@@ -800,7 +800,7 @@ static void bdw_set_cdclk(struct drm_i915_private *dev_priv,
 		     "trying to change cdclk frequency with cdclk not enabled\n"))
 		return;
 
-	ret = snb_pcode_write(dev_priv, BDW_PCODE_DISPLAY_FREQ_CHANGE_REQ, 0x0);
+	ret = snb_pcode_write(&dev_priv->uncore, BDW_PCODE_DISPLAY_FREQ_CHANGE_REQ, 0x0);
 	if (ret) {
 		drm_err(&dev_priv->drm,
 			"failed to inform pcode about cdclk change\n");
@@ -828,7 +828,7 @@ static void bdw_set_cdclk(struct drm_i915_private *dev_priv,
 			 LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1))
 		drm_err(&dev_priv->drm, "Switching back to LCPLL failed\n");
 
-	snb_pcode_write(dev_priv, HSW_PCODE_DE_WRITE_FREQ_REQ,
+	snb_pcode_write(&dev_priv->uncore, HSW_PCODE_DE_WRITE_FREQ_REQ,
 			cdclk_config->voltage_level);
 
 	intel_de_write(dev_priv, CDCLK_FREQ,
@@ -1086,7 +1086,7 @@ static void skl_set_cdclk(struct drm_i915_private *dev_priv,
 	drm_WARN_ON_ONCE(&dev_priv->drm,
 			 IS_SKYLAKE(dev_priv) && vco == 8640000);
 
-	ret = skl_pcode_request(dev_priv, SKL_PCODE_CDCLK_CONTROL,
+	ret = skl_pcode_request(&dev_priv->uncore, SKL_PCODE_CDCLK_CONTROL,
 				SKL_CDCLK_PREPARE_FOR_CHANGE,
 				SKL_CDCLK_READY_FOR_CHANGE,
 				SKL_CDCLK_READY_FOR_CHANGE, 3);
@@ -1132,7 +1132,7 @@ static void skl_set_cdclk(struct drm_i915_private *dev_priv,
 	intel_de_posting_read(dev_priv, CDCLK_CTL);
 
 	/* inform PCU of the change */
-	snb_pcode_write(dev_priv, SKL_PCODE_CDCLK_CONTROL,
+	snb_pcode_write(&dev_priv->uncore, SKL_PCODE_CDCLK_CONTROL,
 			cdclk_config->voltage_level);
 
 	intel_update_cdclk(dev_priv);
@@ -1702,7 +1702,7 @@ static void bxt_set_cdclk(struct drm_i915_private *dev_priv,
 
 	/* Inform power controller of upcoming frequency change. */
 	if (DISPLAY_VER(dev_priv) >= 11)
-		ret = skl_pcode_request(dev_priv, SKL_PCODE_CDCLK_CONTROL,
+		ret = skl_pcode_request(&dev_priv->uncore, SKL_PCODE_CDCLK_CONTROL,
 					SKL_CDCLK_PREPARE_FOR_CHANGE,
 					SKL_CDCLK_READY_FOR_CHANGE,
 					SKL_CDCLK_READY_FOR_CHANGE, 3);
@@ -1711,7 +1711,7 @@ static void bxt_set_cdclk(struct drm_i915_private *dev_priv,
 		 * BSpec requires us to wait up to 150usec, but that leads to
 		 * timeouts; the 2ms used here is based on experiment.
 		 */
-		ret = snb_pcode_write_timeout(dev_priv,
+		ret = snb_pcode_write_timeout(&dev_priv->uncore,
 					      HSW_PCODE_DE_WRITE_FREQ_REQ,
 					      0x80000000, 150, 2);
 	if (ret) {
@@ -1774,7 +1774,7 @@ static void bxt_set_cdclk(struct drm_i915_private *dev_priv,
 		intel_crtc_wait_for_next_vblank(intel_crtc_for_pipe(dev_priv, pipe));
 
 	if (DISPLAY_VER(dev_priv) >= 11) {
-		ret = snb_pcode_write(dev_priv, SKL_PCODE_CDCLK_CONTROL,
+		ret = snb_pcode_write(&dev_priv->uncore, SKL_PCODE_CDCLK_CONTROL,
 				      cdclk_config->voltage_level);
 	} else {
 		/*
@@ -1783,7 +1783,7 @@ static void bxt_set_cdclk(struct drm_i915_private *dev_priv,
 		 * FIXME: Waiting for the request completion could be delayed
 		 * until the next PCODE request based on BSpec.
 		 */
-		ret = snb_pcode_write_timeout(dev_priv,
+		ret = snb_pcode_write_timeout(&dev_priv->uncore,
 					      HSW_PCODE_DE_WRITE_FREQ_REQ,
 					      cdclk_config->voltage_level,
 					      150, 2);
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
index 5eb8d63fb89e..fb17439bd4f8 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -1196,7 +1196,7 @@ static u32 hsw_read_dcomp(struct drm_i915_private *dev_priv)
 static void hsw_write_dcomp(struct drm_i915_private *dev_priv, u32 val)
 {
 	if (IS_HASWELL(dev_priv)) {
-		if (snb_pcode_write(dev_priv, GEN6_PCODE_WRITE_D_COMP, val))
+		if (snb_pcode_write(&dev_priv->uncore, GEN6_PCODE_WRITE_D_COMP, val))
 			drm_dbg_kms(&dev_priv->drm,
 				    "Failed to write to D_COMP\n");
 	} else {
diff --git a/drivers/gpu/drm/i915/display/intel_display_power_well.c b/drivers/gpu/drm/i915/display/intel_display_power_well.c
index 5be18eb94042..91cfd5890f46 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power_well.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power_well.c
@@ -474,7 +474,7 @@ static void icl_tc_cold_exit(struct drm_i915_private *i915)
 	int ret, tries = 0;
 
 	while (1) {
-		ret = snb_pcode_write_timeout(i915, ICL_PCODE_EXIT_TCCOLD, 0,
+		ret = snb_pcode_write_timeout(&i915->uncore, ICL_PCODE_EXIT_TCCOLD, 0,
 					      250, 1);
 		if (ret != -EAGAIN || ++tries == 3)
 			break;
@@ -1739,7 +1739,7 @@ tgl_tc_cold_request(struct drm_i915_private *i915, bool block)
 		 * Spec states that we should timeout the request after 200us
 		 * but the function below will timeout after 500us
 		 */
-		ret = snb_pcode_read(i915, TGL_PCODE_TCCOLD, &low_val, &high_val);
+		ret = snb_pcode_read(&i915->uncore, TGL_PCODE_TCCOLD, &low_val, &high_val);
 		if (ret == 0) {
 			if (block &&
 			    (low_val & TGL_PCODE_EXIT_TCCOLD_DATA_L_EXIT_FAILED))
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
index 44ac0cee8b77..8ea66a2e1b09 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -298,7 +298,7 @@ static int intel_hdcp_load_keys(struct drm_i915_private *dev_priv)
 	 * Mailbox interface.
 	 */
 	if (DISPLAY_VER(dev_priv) == 9 && !IS_BROXTON(dev_priv)) {
-		ret = snb_pcode_write(dev_priv, SKL_PCODE_LOAD_HDCP_KEYS, 1);
+		ret = snb_pcode_write(&dev_priv->uncore, SKL_PCODE_LOAD_HDCP_KEYS, 1);
 		if (ret) {
 			drm_err(&dev_priv->drm,
 				"Failed to initiate HDCP key load (%d)\n",
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 0c6b9eb724ae..90a440865037 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c
@@ -138,7 +138,7 @@ static int gen6_drpc(struct seq_file *m)
 	}
 
 	if (GRAPHICS_VER(i915) <= 7)
-		snb_pcode_read(i915, GEN6_PCODE_READ_RC6VIDS, &rc6vids, NULL);
+		snb_pcode_read(gt->uncore, GEN6_PCODE_READ_RC6VIDS, &rc6vids, NULL);
 
 	seq_printf(m, "RC1e Enabled: %s\n",
 		   str_yes_no(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE));
@@ -545,7 +545,7 @@ static int llc_show(struct seq_file *m, void *data)
 	wakeref = intel_runtime_pm_get(gt->uncore->rpm);
 	for (gpu_freq = min_gpu_freq; gpu_freq <= max_gpu_freq; gpu_freq++) {
 		ia_freq = gpu_freq;
-		snb_pcode_read(i915, GEN6_PCODE_READ_MIN_FREQ_TABLE,
+		snb_pcode_read(gt->uncore, GEN6_PCODE_READ_MIN_FREQ_TABLE,
 			       &ia_freq, NULL);
 		seq_printf(m, "%d\t\t%d\t\t\t\t%d\n",
 			   intel_gpu_freq(rps,
diff --git a/drivers/gpu/drm/i915/gt/intel_llc.c b/drivers/gpu/drm/i915/gt/intel_llc.c
index 40e2e28ee6c7..14fe65812e42 100644
--- a/drivers/gpu/drm/i915/gt/intel_llc.c
+++ b/drivers/gpu/drm/i915/gt/intel_llc.c
@@ -124,7 +124,6 @@ static void calc_ia_freq(struct intel_llc *llc,
 
 static void gen6_update_ring_freq(struct intel_llc *llc)
 {
-	struct drm_i915_private *i915 = llc_to_gt(llc)->i915;
 	struct ia_constants consts;
 	unsigned int gpu_freq;
 
@@ -142,7 +141,7 @@ static void gen6_update_ring_freq(struct intel_llc *llc)
 		unsigned int ia_freq, ring_freq;
 
 		calc_ia_freq(llc, gpu_freq, &consts, &ia_freq, &ring_freq);
-		snb_pcode_write(i915, GEN6_PCODE_WRITE_MIN_FREQ_TABLE,
+		snb_pcode_write(llc_to_gt(llc)->uncore, GEN6_PCODE_WRITE_MIN_FREQ_TABLE,
 				ia_freq << GEN6_PCODE_FREQ_IA_RATIO_SHIFT |
 				ring_freq << GEN6_PCODE_FREQ_RING_RATIO_SHIFT |
 				gpu_freq);
diff --git a/drivers/gpu/drm/i915/gt/intel_rc6.c b/drivers/gpu/drm/i915/gt/intel_rc6.c
index b4770690e794..f8d0523f4c18 100644
--- a/drivers/gpu/drm/i915/gt/intel_rc6.c
+++ b/drivers/gpu/drm/i915/gt/intel_rc6.c
@@ -272,7 +272,7 @@ static void gen6_rc6_enable(struct intel_rc6 *rc6)
 	    GEN6_RC_CTL_HW_ENABLE;
 
 	rc6vids = 0;
-	ret = snb_pcode_read(i915, GEN6_PCODE_READ_RC6VIDS, &rc6vids, NULL);
+	ret = snb_pcode_read(rc6_to_gt(rc6)->uncore, GEN6_PCODE_READ_RC6VIDS, &rc6vids, NULL);
 	if (GRAPHICS_VER(i915) == 6 && ret) {
 		drm_dbg(&i915->drm, "Couldn't check for BIOS workaround\n");
 	} else if (GRAPHICS_VER(i915) == 6 &&
@@ -282,7 +282,7 @@ static void gen6_rc6_enable(struct intel_rc6 *rc6)
 			GEN6_DECODE_RC6_VID(rc6vids & 0xff), 450);
 		rc6vids &= 0xffff00;
 		rc6vids |= GEN6_ENCODE_RC6_VID(450);
-		ret = snb_pcode_write(i915, GEN6_PCODE_WRITE_RC6VIDS, rc6vids);
+		ret = snb_pcode_write(rc6_to_gt(rc6)->uncore, GEN6_PCODE_WRITE_RC6VIDS, rc6vids);
 		if (ret)
 			drm_err(&i915->drm,
 				"Couldn't fix incorrect rc6 voltage\n");
diff --git a/drivers/gpu/drm/i915/gt/intel_rps.c b/drivers/gpu/drm/i915/gt/intel_rps.c
index 3bd8415a0f1b..a62d323ff056 100644
--- a/drivers/gpu/drm/i915/gt/intel_rps.c
+++ b/drivers/gpu/drm/i915/gt/intel_rps.c
@@ -1144,7 +1144,7 @@ static void gen6_rps_init(struct intel_rps *rps)
 
 		if (IS_GEN9_BC(i915) || GRAPHICS_VER(i915) >= 11)
 			mult = GEN9_FREQ_SCALER;
-		if (snb_pcode_read(i915, HSW_PCODE_DYNAMIC_DUTY_CYCLE_CONTROL,
+		if (snb_pcode_read(rps_to_gt(rps)->uncore, HSW_PCODE_DYNAMIC_DUTY_CYCLE_CONTROL,
 				   &ddcc_status, NULL) == 0)
 			rps->efficient_freq =
 				clamp_t(u32,
@@ -1984,7 +1984,7 @@ void intel_rps_init(struct intel_rps *rps)
 	if (GRAPHICS_VER(i915) == 6 || IS_IVYBRIDGE(i915) || IS_HASWELL(i915)) {
 		u32 params = 0;
 
-		snb_pcode_read(i915, GEN6_READ_OC_PARAMS, &params, NULL);
+		snb_pcode_read(rps_to_gt(rps)->uncore, GEN6_READ_OC_PARAMS, &params, NULL);
 		if (params & BIT(31)) { /* OC supported */
 			drm_dbg(&i915->drm,
 				"Overclocking supported, max: %dMHz, overclock: %dMHz\n",
diff --git a/drivers/gpu/drm/i915/gt/selftest_llc.c b/drivers/gpu/drm/i915/gt/selftest_llc.c
index 2cd184ab32b1..cfd736d88939 100644
--- a/drivers/gpu/drm/i915/gt/selftest_llc.c
+++ b/drivers/gpu/drm/i915/gt/selftest_llc.c
@@ -31,7 +31,7 @@ static int gen6_verify_ring_freq(struct intel_llc *llc)
 		calc_ia_freq(llc, gpu_freq, &consts, &ia_freq, &ring_freq);
 
 		val = gpu_freq;
-		if (snb_pcode_read(i915, GEN6_PCODE_READ_MIN_FREQ_TABLE,
+		if (snb_pcode_read(llc_to_gt(llc)->uncore, GEN6_PCODE_READ_MIN_FREQ_TABLE,
 				   &val, NULL)) {
 			pr_err("Failed to read freq table[%d], range [%d, %d]\n",
 			       gpu_freq, consts.min_gpu_freq, consts.max_gpu_freq);
diff --git a/drivers/gpu/drm/i915/gt/selftest_rps.c b/drivers/gpu/drm/i915/gt/selftest_rps.c
index 6a69ac0184ad..cfb4708dd62e 100644
--- a/drivers/gpu/drm/i915/gt/selftest_rps.c
+++ b/drivers/gpu/drm/i915/gt/selftest_rps.c
@@ -521,7 +521,7 @@ static void show_pcu_config(struct intel_rps *rps)
 	for (gpu_freq = min_gpu_freq; gpu_freq <= max_gpu_freq; gpu_freq++) {
 		int ia_freq = gpu_freq;
 
-		snb_pcode_read(i915, GEN6_PCODE_READ_MIN_FREQ_TABLE,
+		snb_pcode_read(rps_to_gt(rps)->uncore, GEN6_PCODE_READ_MIN_FREQ_TABLE,
 			       &ia_freq, NULL);
 
 		pr_info("%5d  %5d  %5d\n",
diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
index 90b0ce5051af..0e9763868d68 100644
--- a/drivers/gpu/drm/i915/i915_driver.c
+++ b/drivers/gpu/drm/i915/i915_driver.c
@@ -629,7 +629,7 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv)
 
 	intel_opregion_setup(dev_priv);
 
-	ret = intel_pcode_init(dev_priv);
+	ret = intel_pcode_init(&dev_priv->uncore);
 	if (ret)
 		goto err_msi;
 
@@ -1251,7 +1251,7 @@ static int i915_drm_resume(struct drm_device *dev)
 
 	disable_rpm_wakeref_asserts(&dev_priv->runtime_pm);
 
-	ret = intel_pcode_init(dev_priv);
+	ret = intel_pcode_init(&dev_priv->uncore);
 	if (ret)
 		return ret;
 
diff --git a/drivers/gpu/drm/i915/intel_dram.c b/drivers/gpu/drm/i915/intel_dram.c
index 2b9e7833da96..437447119770 100644
--- a/drivers/gpu/drm/i915/intel_dram.c
+++ b/drivers/gpu/drm/i915/intel_dram.c
@@ -393,7 +393,7 @@ static int icl_pcode_read_mem_global_info(struct drm_i915_private *dev_priv)
 	u32 val = 0;
 	int ret;
 
-	ret = snb_pcode_read(dev_priv, ICL_PCODE_MEM_SUBSYSYSTEM_INFO |
+	ret = snb_pcode_read(&dev_priv->uncore, ICL_PCODE_MEM_SUBSYSYSTEM_INFO |
 			     ICL_PCODE_MEM_SS_READ_GLOBAL_INFO, &val, NULL);
 	if (ret)
 		return ret;
diff --git a/drivers/gpu/drm/i915/intel_pcode.c b/drivers/gpu/drm/i915/intel_pcode.c
index ac727546868e..2be700932322 100644
--- a/drivers/gpu/drm/i915/intel_pcode.c
+++ b/drivers/gpu/drm/i915/intel_pcode.c
@@ -52,14 +52,12 @@ static int gen7_check_mailbox_status(u32 mbox)
 	}
 }
 
-static int __snb_pcode_rw(struct drm_i915_private *i915, u32 mbox,
+static int __snb_pcode_rw(struct intel_uncore *uncore, u32 mbox,
 			  u32 *val, u32 *val1,
 			  int fast_timeout_us, int slow_timeout_ms,
 			  bool is_read)
 {
-	struct intel_uncore *uncore = &i915->uncore;
-
-	lockdep_assert_held(&i915->sb_lock);
+	lockdep_assert_held(&uncore->i915->sb_lock);
 
 	/*
 	 * GEN6_PCODE_* are outside of the forcewake domain, we can use
@@ -88,22 +86,22 @@ static int __snb_pcode_rw(struct drm_i915_private *i915, u32 mbox,
 	if (is_read && val1)
 		*val1 = intel_uncore_read_fw(uncore, GEN6_PCODE_DATA1);
 
-	if (GRAPHICS_VER(i915) > 6)
+	if (GRAPHICS_VER(uncore->i915) > 6)
 		return gen7_check_mailbox_status(mbox);
 	else
 		return gen6_check_mailbox_status(mbox);
 }
 
-int snb_pcode_read(struct drm_i915_private *i915, u32 mbox, u32 *val, u32 *val1)
+int snb_pcode_read(struct intel_uncore *uncore, u32 mbox, u32 *val, u32 *val1)
 {
 	int err;
 
-	mutex_lock(&i915->sb_lock);
-	err = __snb_pcode_rw(i915, mbox, val, val1, 500, 20, true);
-	mutex_unlock(&i915->sb_lock);
+	mutex_lock(&uncore->i915->sb_lock);
+	err = __snb_pcode_rw(uncore, mbox, val, val1, 500, 20, true);
+	mutex_unlock(&uncore->i915->sb_lock);
 
 	if (err) {
-		drm_dbg(&i915->drm,
+		drm_dbg(&uncore->i915->drm,
 			"warning: pcode (read from mbox %x) mailbox access failed for %ps: %d\n",
 			mbox, __builtin_return_address(0), err);
 	}
@@ -111,18 +109,18 @@ int snb_pcode_read(struct drm_i915_private *i915, u32 mbox, u32 *val, u32 *val1)
 	return err;
 }
 
-int snb_pcode_write_timeout(struct drm_i915_private *i915, u32 mbox, u32 val,
+int snb_pcode_write_timeout(struct intel_uncore *uncore, u32 mbox, u32 val,
 			    int fast_timeout_us, int slow_timeout_ms)
 {
 	int err;
 
-	mutex_lock(&i915->sb_lock);
-	err = __snb_pcode_rw(i915, mbox, &val, NULL,
+	mutex_lock(&uncore->i915->sb_lock);
+	err = __snb_pcode_rw(uncore, mbox, &val, NULL,
 			     fast_timeout_us, slow_timeout_ms, false);
-	mutex_unlock(&i915->sb_lock);
+	mutex_unlock(&uncore->i915->sb_lock);
 
 	if (err) {
-		drm_dbg(&i915->drm,
+		drm_dbg(&uncore->i915->drm,
 			"warning: pcode (write of 0x%08x to mbox %x) mailbox access failed for %ps: %d\n",
 			val, mbox, __builtin_return_address(0), err);
 	}
@@ -130,18 +128,18 @@ int snb_pcode_write_timeout(struct drm_i915_private *i915, u32 mbox, u32 val,
 	return err;
 }
 
-static bool skl_pcode_try_request(struct drm_i915_private *i915, u32 mbox,
+static bool skl_pcode_try_request(struct intel_uncore *uncore, u32 mbox,
 				  u32 request, u32 reply_mask, u32 reply,
 				  u32 *status)
 {
-	*status = __snb_pcode_rw(i915, mbox, &request, NULL, 500, 0, true);
+	*status = __snb_pcode_rw(uncore, mbox, &request, NULL, 500, 0, true);
 
 	return (*status == 0) && ((request & reply_mask) == reply);
 }
 
 /**
  * skl_pcode_request - send PCODE request until acknowledgment
- * @i915: device private
+ * @uncore: uncore
  * @mbox: PCODE mailbox ID the request is targeted for
  * @request: request ID
  * @reply_mask: mask used to check for request acknowledgment
@@ -158,16 +156,16 @@ static bool skl_pcode_try_request(struct drm_i915_private *i915, u32 mbox,
  * Returns 0 on success, %-ETIMEDOUT in case of a timeout, <0 in case of some
  * other error as reported by PCODE.
  */
-int skl_pcode_request(struct drm_i915_private *i915, u32 mbox, u32 request,
+int skl_pcode_request(struct intel_uncore *uncore, u32 mbox, u32 request,
 		      u32 reply_mask, u32 reply, int timeout_base_ms)
 {
 	u32 status;
 	int ret;
 
-	mutex_lock(&i915->sb_lock);
+	mutex_lock(&uncore->i915->sb_lock);
 
 #define COND \
-	skl_pcode_try_request(i915, mbox, request, reply_mask, reply, &status)
+	skl_pcode_try_request(uncore, mbox, request, reply_mask, reply, &status)
 
 	/*
 	 * Prime the PCODE by doing a request first. Normally it guarantees
@@ -193,35 +191,26 @@ int skl_pcode_request(struct drm_i915_private *i915, u32 mbox, u32 request,
 	 * requests, and for any quirks of the PCODE firmware that delays
 	 * the request completion.
 	 */
-	drm_dbg_kms(&i915->drm,
+	drm_dbg_kms(&uncore->i915->drm,
 		    "PCODE timeout, retrying with preemption disabled\n");
-	drm_WARN_ON_ONCE(&i915->drm, timeout_base_ms > 3);
+	drm_WARN_ON_ONCE(&uncore->i915->drm, timeout_base_ms > 3);
 	preempt_disable();
 	ret = wait_for_atomic(COND, 50);
 	preempt_enable();
 
 out:
-	mutex_unlock(&i915->sb_lock);
+	mutex_unlock(&uncore->i915->sb_lock);
 	return status ? status : ret;
 #undef COND
 }
 
-int intel_pcode_init(struct drm_i915_private *i915)
+int intel_pcode_init(struct intel_uncore *uncore)
 {
-	int ret = 0;
-
-	if (!IS_DGFX(i915))
-		return ret;
-
-	ret = skl_pcode_request(i915, DG1_PCODE_STATUS,
-				DG1_UNCORE_GET_INIT_STATUS,
-				DG1_UNCORE_INIT_STATUS_COMPLETE,
-				DG1_UNCORE_INIT_STATUS_COMPLETE, 180000);
-
-	drm_dbg(&i915->drm, "PCODE init status %d\n", ret);
-
-	if (ret)
-		drm_err(&i915->drm, "Pcode did not report uncore initialization completion!\n");
+	if (!IS_DGFX(uncore->i915))
+		return 0;
 
-	return ret;
+	return skl_pcode_request(uncore, DG1_PCODE_STATUS,
+				 DG1_UNCORE_GET_INIT_STATUS,
+				 DG1_UNCORE_INIT_STATUS_COMPLETE,
+				 DG1_UNCORE_INIT_STATUS_COMPLETE, 180000);
 }
diff --git a/drivers/gpu/drm/i915/intel_pcode.h b/drivers/gpu/drm/i915/intel_pcode.h
index 0962a17fac48..8f6241b114a5 100644
--- a/drivers/gpu/drm/i915/intel_pcode.h
+++ b/drivers/gpu/drm/i915/intel_pcode.h
@@ -8,17 +8,17 @@
 
 #include <linux/types.h>
 
-struct drm_i915_private;
+struct intel_uncore;
 
-int snb_pcode_read(struct drm_i915_private *i915, u32 mbox, u32 *val, u32 *val1);
-int snb_pcode_write_timeout(struct drm_i915_private *i915, u32 mbox, u32 val,
+int snb_pcode_read(struct intel_uncore *uncore, u32 mbox, u32 *val, u32 *val1);
+int snb_pcode_write_timeout(struct intel_uncore *uncore, u32 mbox, u32 val,
 			    int fast_timeout_us, int slow_timeout_ms);
-#define snb_pcode_write(i915, mbox, val)			\
-	snb_pcode_write_timeout(i915, mbox, val, 500, 0)
+#define snb_pcode_write(uncore, mbox, val) \
+	snb_pcode_write_timeout(uncore, mbox, val, 500, 0)
 
-int skl_pcode_request(struct drm_i915_private *i915, u32 mbox, u32 request,
+int skl_pcode_request(struct intel_uncore *uncore, u32 mbox, u32 request,
 		      u32 reply_mask, u32 reply, int timeout_base_ms);
 
-int intel_pcode_init(struct drm_i915_private *i915);
+int intel_pcode_init(struct intel_uncore *uncore);
 
 #endif /* _INTEL_PCODE_H */
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index ee0047fdc95d..aacb21cbc62e 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2874,7 +2874,7 @@ static void intel_read_wm_latency(struct drm_i915_private *dev_priv,
 
 		/* read the first set of memory latencies[0:3] */
 		val = 0; /* data0 to be programmed to 0 for first set */
-		ret = snb_pcode_read(dev_priv, GEN9_PCODE_READ_MEM_LATENCY,
+		ret = snb_pcode_read(&dev_priv->uncore, GEN9_PCODE_READ_MEM_LATENCY,
 				     &val, NULL);
 
 		if (ret) {
@@ -2893,7 +2893,7 @@ static void intel_read_wm_latency(struct drm_i915_private *dev_priv,
 
 		/* read the second set of memory latencies[4:7] */
 		val = 1; /* data0 to be programmed to 1 for second set */
-		ret = snb_pcode_read(dev_priv, GEN9_PCODE_READ_MEM_LATENCY,
+		ret = snb_pcode_read(&dev_priv->uncore, GEN9_PCODE_READ_MEM_LATENCY,
 				     &val, NULL);
 		if (ret) {
 			drm_err(&dev_priv->drm,
@@ -3679,7 +3679,7 @@ intel_sagv_block_time(struct drm_i915_private *dev_priv)
 		u32 val = 0;
 		int ret;
 
-		ret = snb_pcode_read(dev_priv,
+		ret = snb_pcode_read(&dev_priv->uncore,
 				     GEN12_PCODE_READ_SAGV_BLOCK_TIME_US,
 				     &val, NULL);
 		if (ret) {
@@ -3748,7 +3748,7 @@ static void skl_sagv_enable(struct drm_i915_private *dev_priv)
 		return;
 
 	drm_dbg_kms(&dev_priv->drm, "Enabling SAGV\n");
-	ret = snb_pcode_write(dev_priv, GEN9_PCODE_SAGV_CONTROL,
+	ret = snb_pcode_write(&dev_priv->uncore, GEN9_PCODE_SAGV_CONTROL,
 			      GEN9_SAGV_ENABLE);
 
 	/* We don't need to wait for SAGV when enabling */
@@ -3781,7 +3781,7 @@ static void skl_sagv_disable(struct drm_i915_private *dev_priv)
 
 	drm_dbg_kms(&dev_priv->drm, "Disabling SAGV\n");
 	/* bspec says to keep retrying for at least 1 ms */
-	ret = skl_pcode_request(dev_priv, GEN9_PCODE_SAGV_CONTROL,
+	ret = skl_pcode_request(&dev_priv->uncore, GEN9_PCODE_SAGV_CONTROL,
 				GEN9_SAGV_DISABLE,
 				GEN9_SAGV_IS_DISABLED, GEN9_SAGV_IS_DISABLED,
 				1);
-- 
2.34.1



More information about the Intel-gfx mailing list