drm/i915/bxt: add revision id for A1 stepping and use it

Prefer inclusive ranges for revision checks rather than "below B0". Per
specs A2 is not used, so revid <= A1 matches revid < B0.

Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1445343722-3312-2-git-send-email-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drivers/gpu/drm/i915/i915_drv.h

@@ -2502,6 +2502,7 @@ struct drm_i915_cmd_table {
 #define SKL_REVID_F0		0x5
 
 #define BXT_REVID_A0		0x0
+#define BXT_REVID_A1		0x1
 #define BXT_REVID_B0		0x3
 #define BXT_REVID_C0		0x9
 

drivers/gpu/drm/i915/i915_gem.c

@@ -3826,7 +3826,7 @@ int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
 		 * cacheline, whereas normally such cachelines would get
 		 * invalidated.
 		 */
-		if (IS_BROXTON(dev) && INTEL_REVID(dev) < BXT_REVID_B0)
+		if (IS_BROXTON(dev) && INTEL_REVID(dev) <= BXT_REVID_A1)
 			return -ENODEV;
 
 		level = I915_CACHE_LLC;

drivers/gpu/drm/i915/i915_guc_submission.c

@@ -161,7 +161,7 @@ static int host2guc_sample_forcewake(struct intel_guc *guc,
 	data[0] = HOST2GUC_ACTION_SAMPLE_FORCEWAKE;
 	/* WaRsDisableCoarsePowerGating:skl,bxt */
 	if (!intel_enable_rc6(dev_priv->dev) ||
-	    (IS_BROXTON(dev) && (INTEL_REVID(dev) < BXT_REVID_B0)) ||
+	    (IS_BROXTON(dev) && (INTEL_REVID(dev) <= BXT_REVID_A1)) ||
 	    (IS_SKL_GT3(dev) && (INTEL_REVID(dev) <= SKL_REVID_E0)) ||
 	    (IS_SKL_GT4(dev) && (INTEL_REVID(dev) <= SKL_REVID_E0)))
 		data[1] = 0;

drivers/gpu/drm/i915/intel_ddi.c

@@ -3247,7 +3247,7 @@ void intel_ddi_init(struct drm_device *dev, enum port port)
 		 * On BXT A0/A1, sw needs to activate DDIA HPD logic and
 		 * interrupts to check the external panel connection.
 		 */
-		if (IS_BROXTON(dev_priv) && (INTEL_REVID(dev) < BXT_REVID_B0)
+		if (IS_BROXTON(dev_priv) && (INTEL_REVID(dev) <= BXT_REVID_A1)
 					 && port == PORT_B)
 			dev_priv->hotplug.irq_port[PORT_A] = intel_dig_port;
 		else

drivers/gpu/drm/i915/intel_dp.c

@@ -6087,7 +6087,7 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
 		break;
 	case PORT_B:
 		intel_encoder->hpd_pin = HPD_PORT_B;
-		if (IS_BROXTON(dev_priv) && (INTEL_REVID(dev) < BXT_REVID_B0))
+		if (IS_BROXTON(dev_priv) && (INTEL_REVID(dev) <= BXT_REVID_A1))
 			intel_encoder->hpd_pin = HPD_PORT_A;
 		break;
 	case PORT_C:

drivers/gpu/drm/i915/intel_hdmi.c

@@ -2039,7 +2039,7 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
 		 * On BXT A0/A1, sw needs to activate DDIA HPD logic and
 		 * interrupts to check the external panel connection.
 		 */
-		if (IS_BROXTON(dev_priv) && (INTEL_REVID(dev) < BXT_REVID_B0))
+		if (IS_BROXTON(dev_priv) && (INTEL_REVID(dev) <= BXT_REVID_A1))
 			intel_encoder->hpd_pin = HPD_PORT_A;
 		else
 			intel_encoder->hpd_pin = HPD_PORT_B;

drivers/gpu/drm/i915/intel_lrc.c

@@ -1946,7 +1946,7 @@ static int logical_render_ring_init(struct drm_device *dev)
 		ring->init_hw = gen8_init_render_ring;
 	ring->init_context = gen8_init_rcs_context;
 	ring->cleanup = intel_fini_pipe_control;
-	if (IS_BROXTON(dev) && INTEL_REVID(dev) < BXT_REVID_B0) {
+	if (IS_BROXTON(dev) && INTEL_REVID(dev) <= BXT_REVID_A1) {
 		ring->get_seqno = bxt_a_get_seqno;
 		ring->set_seqno = bxt_a_set_seqno;
 	} else {
@@ -1998,7 +1998,7 @@ static int logical_bsd_ring_init(struct drm_device *dev)
 		GT_CONTEXT_SWITCH_INTERRUPT << GEN8_VCS1_IRQ_SHIFT;
 
 	ring->init_hw = gen8_init_common_ring;
-	if (IS_BROXTON(dev) && INTEL_REVID(dev) < BXT_REVID_B0) {
+	if (IS_BROXTON(dev) && INTEL_REVID(dev) <= BXT_REVID_A1) {
 		ring->get_seqno = bxt_a_get_seqno;
 		ring->set_seqno = bxt_a_set_seqno;
 	} else {
@@ -2053,7 +2053,7 @@ static int logical_blt_ring_init(struct drm_device *dev)
 		GT_CONTEXT_SWITCH_INTERRUPT << GEN8_BCS_IRQ_SHIFT;
 
 	ring->init_hw = gen8_init_common_ring;
-	if (IS_BROXTON(dev) && INTEL_REVID(dev) < BXT_REVID_B0) {
+	if (IS_BROXTON(dev) && INTEL_REVID(dev) <= BXT_REVID_A1) {
 		ring->get_seqno = bxt_a_get_seqno;
 		ring->set_seqno = bxt_a_set_seqno;
 	} else {
@@ -2083,7 +2083,7 @@ static int logical_vebox_ring_init(struct drm_device *dev)
 		GT_CONTEXT_SWITCH_INTERRUPT << GEN8_VECS_IRQ_SHIFT;
 
 	ring->init_hw = gen8_init_common_ring;
-	if (IS_BROXTON(dev) && INTEL_REVID(dev) < BXT_REVID_B0) {
+	if (IS_BROXTON(dev) && INTEL_REVID(dev) <= BXT_REVID_A1) {
 		ring->get_seqno = bxt_a_get_seqno;
 		ring->set_seqno = bxt_a_set_seqno;
 	} else {

drivers/gpu/drm/i915/intel_pm.c

@@ -4386,7 +4386,7 @@ static void gen6_set_rps(struct drm_device *dev, u8 val)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 
 	/* WaGsvDisableTurbo: Workaround to disable turbo on BXT A* */
-	if (IS_BROXTON(dev) && (INTEL_REVID(dev) < BXT_REVID_B0))
+	if (IS_BROXTON(dev) && (INTEL_REVID(dev) <= BXT_REVID_A1))
 		return;
 
 	WARN_ON(!mutex_is_locked(&dev_priv->rps.hw_lock));
@@ -4710,7 +4710,7 @@ static void gen9_enable_rps(struct drm_device *dev)
 	gen6_init_rps_frequencies(dev);
 
 	/* WaGsvDisableTurbo: Workaround to disable turbo on BXT A* */
-	if (IS_BROXTON(dev) && (INTEL_REVID(dev) < BXT_REVID_B0)) {
+	if (IS_BROXTON(dev) && (INTEL_REVID(dev) <= BXT_REVID_A1)) {
 		intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
 		return;
 	}
@@ -4796,7 +4796,7 @@ static void gen9_enable_rc6(struct drm_device *dev)
 	 * 3b: Enable Coarse Power Gating only when RC6 is enabled.
 	 * WaRsDisableCoarsePowerGating:skl,bxt - Render/Media PG need to be disabled with RC6.
 	 */
-	if ((IS_BROXTON(dev) && (INTEL_REVID(dev) < BXT_REVID_B0)) ||
+	if ((IS_BROXTON(dev) && (INTEL_REVID(dev) <= BXT_REVID_A1)) ||
 	    ((IS_SKL_GT3(dev) || IS_SKL_GT4(dev)) && (INTEL_REVID(dev) <= SKL_REVID_E0)))
 		I915_WRITE(GEN9_PG_ENABLE, 0);
 	else

drivers/gpu/drm/i915/intel_ringbuffer.c

@@ -924,14 +924,14 @@ static int gen9_init_workarounds(struct intel_engine_cs *ring)
 
 	if ((IS_SKYLAKE(dev) && (INTEL_REVID(dev) == SKL_REVID_A0 ||
 	    INTEL_REVID(dev) == SKL_REVID_B0)) ||
-	    (IS_BROXTON(dev) && INTEL_REVID(dev) < BXT_REVID_B0)) {
+	    (IS_BROXTON(dev) && INTEL_REVID(dev) <= BXT_REVID_A1)) {
 		/* WaDisableDgMirrorFixInHalfSliceChicken5:skl,bxt */
 		WA_CLR_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN5,
 				  GEN9_DG_MIRROR_FIX_ENABLE);
 	}
 
 	if ((IS_SKYLAKE(dev) && INTEL_REVID(dev) <= SKL_REVID_B0) ||
-	    (IS_BROXTON(dev) && INTEL_REVID(dev) < BXT_REVID_B0)) {
+	    (IS_BROXTON(dev) && INTEL_REVID(dev) <= BXT_REVID_A1)) {
 		/* WaSetDisablePixMaskCammingAndRhwoInCommonSliceChicken:skl,bxt */
 		WA_SET_BIT_MASKED(GEN7_COMMON_SLICE_CHICKEN1,
 				  GEN9_RHWO_OPTIMIZATION_DISABLE);
@@ -960,7 +960,7 @@ static int gen9_init_workarounds(struct intel_engine_cs *ring)
 
 	/* WaDisableMaskBasedCammingInRCC:skl,bxt */
 	if ((IS_SKYLAKE(dev) && INTEL_REVID(dev) == SKL_REVID_C0) ||
-	    (IS_BROXTON(dev) && INTEL_REVID(dev) < BXT_REVID_B0))
+	    (IS_BROXTON(dev) && INTEL_REVID(dev) <= BXT_REVID_A1))
 		WA_SET_BIT_MASKED(SLICE_ECO_CHICKEN0,
 				  PIXEL_MASK_CAMMING_DISABLE);