Commit 64cf40a1 authored by Gwan-gyeong Mun's avatar Gwan-gyeong Mun Committed by José Roberto de Souza

drm/i915/psr: Program default IO buffer Wake and Fast Wake

The IO buffer Wake and Fast Wake bit size and value have been changed from
Gen12+. It programs the default value of IO buffer Wake and Fast Wake on
Gen12+. It adds definitions of IO buffer Wake and Fast Wake for pre Gen12
and Gen12+. And it aligns PSR2 definition macros.

v2: Fix macro definitions. (José)
v3: Addressed review comments from José
  - Add missing default values of IO_BUFFER_WAKE and FAST_WAKE for GEN9+
  - Change a style of macro naming in order to use lines as input.
  - Update Todo comments.
v4: Add parentheses to macros to avoid precedence issues.

Cc: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: default avatarGwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: default avatarJosé Roberto de Souza <jose.souza@intel.com>
Signed-off-by: default avatarJosé Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200607143614.185246-1-gwan-gyeong.mun@intel.com
parent 8c1a8f12
......@@ -537,6 +537,22 @@ static void hsw_activate_psr2(struct intel_dp *intel_dp)
val |= EDP_PSR2_FRAME_BEFORE_SU(dev_priv->psr.sink_sync_latency + 1);
val |= intel_psr2_get_tp_time(intel_dp);
if (INTEL_GEN(dev_priv) >= 12) {
/*
* TODO: 7 lines of IO_BUFFER_WAKE and FAST_WAKE are default
* values from BSpec. In order to setting an optimal power
* consumption, lower than 4k resoluition mode needs to decrese
* IO_BUFFER_WAKE and FAST_WAKE. And higher than 4K resolution
* mode needs to increase IO_BUFFER_WAKE and FAST_WAKE.
*/
val |= TGL_EDP_PSR2_BLOCK_COUNT_NUM_2;
val |= TGL_EDP_PSR2_IO_BUFFER_WAKE(7);
val |= TGL_EDP_PSR2_FAST_WAKE(7);
} else if (INTEL_GEN(dev_priv) >= 9) {
val |= EDP_PSR2_IO_BUFFER_WAKE(7);
val |= EDP_PSR2_FAST_WAKE(7);
}
/*
* PSR2 HW is incorrectly using EDP_PSR_TP1_TP3_SEL and BSpec is
* recommending keep this bit unset while PSR2 is enabled.
......
......@@ -4516,10 +4516,24 @@ enum {
#define EDP_PSR2_CTL(tran) _MMIO_TRANS2(tran, _PSR2_CTL_A)
#define EDP_PSR2_ENABLE (1 << 31)
#define EDP_SU_TRACK_ENABLE (1 << 30)
#define TGL_EDP_PSR2_BLOCK_COUNT_NUM_2 (0 << 28)
#define TGL_EDP_PSR2_BLOCK_COUNT_NUM_3 (1 << 28)
#define EDP_Y_COORDINATE_VALID (1 << 26) /* GLK and CNL+ */
#define EDP_Y_COORDINATE_ENABLE (1 << 25) /* GLK and CNL+ */
#define EDP_MAX_SU_DISABLE_TIME(t) ((t) << 20)
#define EDP_MAX_SU_DISABLE_TIME_MASK (0x1f << 20)
#define EDP_PSR2_IO_BUFFER_WAKE_MAX_LINES 8
#define EDP_PSR2_IO_BUFFER_WAKE(lines) ((EDP_PSR2_IO_BUFFER_WAKE_MAX_LINES - (lines)) << 13)
#define EDP_PSR2_IO_BUFFER_WAKE_MASK (3 << 13)
#define TGL_EDP_PSR2_IO_BUFFER_WAKE_MIN_LINES 5
#define TGL_EDP_PSR2_IO_BUFFER_WAKE(lines) (((lines) - TGL_EDP_PSR2_IO_BUFFER_WAKE_MIN_LINES) << 13)
#define TGL_EDP_PSR2_IO_BUFFER_WAKE_MASK (7 << 13)
#define EDP_PSR2_FAST_WAKE_MAX_LINES 8
#define EDP_PSR2_FAST_WAKE(lines) ((EDP_PSR2_FAST_WAKE_MAX_LINES - (lines)) << 11)
#define EDP_PSR2_FAST_WAKE_MASK (3 << 11)
#define TGL_EDP_PSR2_FAST_WAKE_MIN_LINES 5
#define TGL_EDP_PSR2_FAST_WAKE(lines) (((lines) - TGL_EDP_PSR2_FAST_WAKE_MIN_LINES) << 10)
#define TGL_EDP_PSR2_FAST_WAKE_MASK (7 << 10)
#define EDP_PSR2_TP2_TIME_500us (0 << 8)
#define EDP_PSR2_TP2_TIME_100us (1 << 8)
#define EDP_PSR2_TP2_TIME_2500us (2 << 8)
......
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