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* [PATCH 06/10] drm/i915/psr: set CHICKEN_TRANS for psr2
@ 2017-01-06 18:58 vathsala nagaraju
  2017-01-06 19:15 ` Vivi, Rodrigo
                   ` (2 more replies)
  0 siblings, 3 replies; 11+ messages in thread
From: vathsala nagaraju @ 2017-01-06 18:58 UTC (permalink / raw)
  To: dri-devel, intel-gfx; +Cc: Patil Deepti, Rodrigo Vivi

As per bpsec, CHICKEN_TRANS_EDP bit 12 ,15
must be programmed.
Enable bit 12 for programmable header packet.
Enable bit 15 for Y cordinate support.

v2: (Rodrigo)
- move CHICKEN_TRANS_EDP bit set logic right after setup_vsc

v3:(Rodrigo)
- initialize chicken_trans to CHICKEN_TRANS_BIT12 instead of 0

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Jim Bride <jim.bride@linux.intel.com>
Signed-off-by: vathsala nagaraju <vathsala.nagaraju@intel.com>
Signed-off-by: Patil Deepti <deepti.patil@intel.com>
---
 drivers/gpu/drm/i915/i915_reg.h  | 7 +++++++
 drivers/gpu/drm/i915/intel_psr.c | 6 ++++++
 2 files changed, 13 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 7830e6e..5ca506a 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -6449,6 +6449,13 @@ enum {
 #define  BDW_DPRS_MASK_VBLANK_SRD	(1 << 0)
 #define CHICKEN_PIPESL_1(pipe) _MMIO_PIPE(pipe, _CHICKEN_PIPESL_1_A, _CHICKEN_PIPESL_1_B)
 
+#define CHICKEN_TRANS_A         0x420c0
+#define CHICKEN_TRANS_B         0x420c4
+#define CHICKEN_TRANS(trans) _MMIO_TRANS(trans, CHICKEN_TRANS_A, CHICKEN_TRANS_B)
+#define TRANS_EDP              3
+#define CHICKEN_TRANS_BIT12    (1<<12)
+#define CHICKEN_TRANS_BIT15    (1<<15)
+
 #define DISP_ARB_CTL	_MMIO(0x45000)
 #define  DISP_FBC_MEMORY_WAKE		(1<<31)
 #define  DISP_TILE_SURFACE_SWIZZLING	(1<<13)
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index 7020f42..7573c2f 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -475,6 +475,8 @@ void intel_psr_enable(struct intel_dp *intel_dp)
 	struct drm_device *dev = intel_dig_port->base.base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_crtc *crtc = to_intel_crtc(intel_dig_port->base.base.crtc);
+	/* Set CHICKEN_TRANS_BIT12 for programable header */
+	uint32_t chicken_trans = CHICKEN_TRANS_BIT12;
 
 	if (!HAS_PSR(dev_priv)) {
 		DRM_DEBUG_KMS("PSR not supported on this platform\n");
@@ -505,6 +507,10 @@ void intel_psr_enable(struct intel_dp *intel_dp)
 				dev_priv->psr.psr2_support = false;
 			else
 				skl_psr_setup_su_vsc(intel_dp);
+			/* Set CHICKEN_TRANS_BIT15 if Y coordinate is supported */
+			if (dev_priv->psr.y_cord_support)
+				chicken_trans |= CHICKEN_TRANS_BIT15;
+			I915_WRITE(CHICKEN_TRANS(TRANS_EDP), chicken_trans);
 		} else {
 			/* set up vsc header for psr1 */
 			hsw_psr_setup_vsc(intel_dp);
-- 
1.9.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply related	[flat|nested] 11+ messages in thread
* [PATCH 06/10] drm/i915/psr: set CHICKEN_TRANS for psr2
@ 2017-01-11 15:22 vathsala nagaraju
  2017-01-12 19:01 ` vathsala nagaraju
  0 siblings, 1 reply; 11+ messages in thread
From: vathsala nagaraju @ 2017-01-11 15:22 UTC (permalink / raw)
  To: dri-devel, intel-gfx; +Cc: Patil Deepti, Rodrigo Vivi

As per bpsec, CHICKEN_TRANS_EDP bit 12 ,15 must be programmed in
psr2 enable sequence.
bit 12 : Program Transcoder EDP VSC DIP header with a valid setting for
        PSR2 and Set CHICKEN_TRANS_EDP(0x420cc) bit 12 for programmable
        header packet.
bit 15 : Set CHICKEN_TRANS_EDP(0x420cc) bit 15 if Y coordinate is supported

v2: (Rodrigo)
- move CHICKEN_TRANS_EDP bit set logic right after setup_vsc

v3:(Rodrigo)
- initialize chicken_trans to CHICKEN_TRANS_BIT12 instead of 0

v4:(chris wilson)
- use BIT(12), remove CHICKEN_TRANS_BIT12
- remove unnecessary comments
- update commit message

v5:
- rename bit 12 PSR2_VSC_ENABLE_PROG_HEADER
- rename bit 15 PSR2_ADD_VERTICAL_LINE_COUNT

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Jim Bride <jim.bride@linux.intel.com>
Signed-off-by: vathsala nagaraju <vathsala.nagaraju@intel.com>
Signed-off-by: Patil Deepti <deepti.patil@intel.com>
---
 drivers/gpu/drm/i915/i915_reg.h  | 7 +++++++
 drivers/gpu/drm/i915/intel_psr.c | 5 +++++
 2 files changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 7830e6e..7a325fb 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -6449,6 +6449,13 @@ enum {
 #define  BDW_DPRS_MASK_VBLANK_SRD	(1 << 0)
 #define CHICKEN_PIPESL_1(pipe) _MMIO_PIPE(pipe, _CHICKEN_PIPESL_1_A, _CHICKEN_PIPESL_1_B)
 
+#define CHICKEN_TRANS_A         0x420c0
+#define CHICKEN_TRANS_B         0x420c4
+#define CHICKEN_TRANS(trans) _MMIO_TRANS(trans, CHICKEN_TRANS_A, CHICKEN_TRANS_B)
+#define TRANS_EDP              3
+#define PSR2_VSC_ENABLE_PROG_HEADER    (1<<12)
+#define PSR2_ADD_VERTICAL_LINE_COUNT   (1<<15)
+
 #define DISP_ARB_CTL	_MMIO(0x45000)
 #define  DISP_FBC_MEMORY_WAKE		(1<<31)
 #define  DISP_TILE_SURFACE_SWIZZLING	(1<<13)
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index 3cf5cc4..b582220 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -480,6 +480,7 @@ void intel_psr_enable(struct intel_dp *intel_dp)
 	struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
 	struct drm_device *dev = intel_dig_port->base.base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
+	u32 chicken;
 
 	if (!HAS_PSR(dev_priv)) {
 		DRM_DEBUG_KMS("PSR not supported on this platform\n");
@@ -505,6 +506,10 @@ void intel_psr_enable(struct intel_dp *intel_dp)
 	if (HAS_DDI(dev_priv)) {
 		if (dev_priv->psr.psr2_support) {
 			skl_psr_setup_su_vsc(intel_dp);
+			chicken = PSR2_VSC_ENABLE_PROG_HEADER;
+			if (dev_priv->psr.y_cord_support)
+				chicken |= PSR2_ADD_VERTICAL_LINE_COUNT;
+			I915_WRITE(CHICKEN_TRANS(TRANS_EDP), chicken);
 		} else {
 			/* set up vsc header for psr1 */
 			hsw_psr_setup_vsc(intel_dp);
-- 
1.9.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply related	[flat|nested] 11+ messages in thread

end of thread, other threads:[~2017-01-19  9:50 UTC | newest]

Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-01-06 18:58 [PATCH 06/10] drm/i915/psr: set CHICKEN_TRANS for psr2 vathsala nagaraju
2017-01-06 19:15 ` Vivi, Rodrigo
2017-01-07  2:52 ` vathsala nagaraju
2017-01-07 18:12 ` vathsala nagaraju
2017-01-07 19:44   ` [Intel-gfx] " Chris Wilson
2017-01-09  4:09     ` vathsala nagaraju
2017-01-09 13:08   ` vathsala nagaraju
2017-01-10 11:08     ` Ville Syrjälä
2017-01-11 15:22 vathsala nagaraju
2017-01-12 19:01 ` vathsala nagaraju
2017-01-12 20:12   ` Vivi, Rodrigo
2017-01-13 18:50     ` [Intel-gfx] " Rodrigo Vivi
2017-01-16 10:04       ` Jani Nikula
2017-01-17 17:33         ` Rodrigo Vivi
2017-01-18  8:12           ` [Intel-gfx] " Jani Nikula
2017-01-18 21:50             ` Vivi, Rodrigo
2017-01-19  9:50               ` [Intel-gfx] " Jani Nikula

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