>-----Original Message-----
>From: Vivi, Rodrigo
>Sent: Friday, November 14, 2014 10:23 PM
>To: intel-gfx@lists.freedesktop.org
>Cc: Vivi, Rodrigo; R, Durgadoss
>Subject: [PATCH 10/15] drm/i915: Add PSR registers for PSR VLV/CHV.
>
>Baytrail (Valleyview) and Braswell (Cherryview) uses a complete different
>implementation of PSR that we currently have supported for
>Haswell and Broadwell. So let's start by adding registers definitions.
>
>I usually don't like commit that adds just registers without using,
>but after I put all in one commit I realized that no one would want
>to take the AR to review it so I decided to split in order to make
>reviewer's life easier. Only last commit in this series will actually
>enable the PSR on intel enable panel path.
>
>But as it happens currently with HSW/BDW the plan is to let it
>disabled by default (protected by kernel parameter)
>while we are able to fully validate it.
>
>v2: Remove a unused bit definition that isn't used on vlv and
> reserved on chv as pointed out by Durgadoss.
>
>Cc: Durgadoss R <durgados...@intel.com>
>Signed-off-by: Rodrigo Vivi <rodrigo.v...@intel.com>
Reviewed-by: Durgadoss R <durgados...@intel.com>
Thanks,
Durga
>---
> drivers/gpu/drm/i915/i915_reg.h | 36 ++++++++++++++++++++++++++++++++++++
> 1 file changed, 36 insertions(+)
>
>diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
>index 35cfc16..667a923 100644
>--- a/drivers/gpu/drm/i915/i915_reg.h
>+++ b/drivers/gpu/drm/i915/i915_reg.h
>@@ -2511,6 +2511,42 @@ enum punit_power_well {
> #define PIPESRC(trans) _TRANSCODER2(trans, _PIPEASRC)
> #define PIPE_MULT(trans) _TRANSCODER2(trans, _PIPE_MULT_A)
>
>+/* VLV eDP PSR registers */
>+#define _PSRCTLA (VLV_DISPLAY_BASE + 0x60090)
>+#define _PSRCTLB (VLV_DISPLAY_BASE + 0x61090)
>+#define VLV_EDP_PSR_ENABLE (1<<0)
>+#define VLV_EDP_PSR_RESET (1<<1)
>+#define VLV_EDP_PSR_MODE_MASK (7<<2)
>+#define VLV_EDP_PSR_MODE_HW_TIMER (1<<3)
>+#define VLV_EDP_PSR_MODE_SW_TIMER (1<<2)
>+#define VLV_EDP_PSR_SINGLE_FRAME_UPDATE (1<<7)
>+#define VLV_EDP_PSR_ACTIVE_ENTRY (1<<8)
>+#define VLV_EDP_PSR_SRC_TRANSMITTER_STATE (1<<9)
>+#define VLV_EDP_PSR_DBL_FRAME (1<<10)
>+#define VLV_EDP_PSR_FRAME_COUNT_MASK (0xff<<16)
>+#define VLV_EDP_PSR_IDLE_FRAME_SHIFT 16
>+#define VLV_PSRCTL(pipe) _PIPE(pipe, _PSRCTLA, _PSRCTLB)
>+
>+#define _VSCSDPA (VLV_DISPLAY_BASE + 0x600a0)
>+#define _VSCSDPB (VLV_DISPLAY_BASE + 0x610a0)
>+#define VLV_EDP_PSR_SDP_FREQ_MASK (3<<30)
>+#define VLV_EDP_PSR_SDP_FREQ_ONCE (1<<31)
>+#define VLV_EDP_PSR_SDP_FREQ_EVFRAME (1<<30)
>+#define VLV_VSCSDP(pipe) _PIPE(pipe, _VSCSDPA, _VSCSDPB)
>+
>+#define _PSRSTATA (VLV_DISPLAY_BASE + 0x60094)
>+#define _PSRSTATB (VLV_DISPLAY_BASE + 0x61094)
>+#define VLV_EDP_PSR_LAST_STATE_MASK (7<<3)
>+#define VLV_EDP_PSR_CURR_STATE_MASK 7
>+#define VLV_EDP_PSR_DISABLED (0<<0)
>+#define VLV_EDP_PSR_INACTIVE (1<<0)
>+#define VLV_EDP_PSR_IN_TRANS_TO_ACTIVE (2<<0)
>+#define VLV_EDP_PSR_ACTIVE_NORFB_UP (3<<0)
>+#define VLV_EDP_PSR_ACTIVE_SF_UPDATE (4<<0)
>+#define VLV_EDP_PSR_EXIT (5<<0)
>+#define VLV_EDP_PSR_IN_TRANS (1<<7)
>+#define VLV_PSRSTAT(pipe) _PIPE(pipe, _PSRSTATA, _PSRSTATB)
>+
> /* HSW+ eDP PSR registers */
> #define EDP_PSR_BASE(dev) (IS_HASWELL(dev) ? 0x64800 :
> 0x6f800)
> #define EDP_PSR_CTL(dev) (EDP_PSR_BASE(dev) + 0)
>--
>1.9.3
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