From patchwork Thu Jun 18 09:50:33 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Weinehall X-Patchwork-Id: 6634771 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id F009EC0020 for ; Thu, 18 Jun 2015 09:51:35 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3FABD20827 for ; Thu, 18 Jun 2015 09:51:34 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 4A94720808 for ; Thu, 18 Jun 2015 09:51:32 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3739A6ECAC; Thu, 18 Jun 2015 02:51:31 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTP id 5A3E46ECAC for ; Thu, 18 Jun 2015 02:51:30 -0700 (PDT) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga103.fm.intel.com with ESMTP; 18 Jun 2015 02:51:26 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,638,1427785200"; d="scan'208";a="713173697" Received: from dweineha-mobl3.fi.intel.com (HELO boom) ([10.237.72.77]) by orsmga001.jf.intel.com with ESMTP; 18 Jun 2015 02:51:25 -0700 Date: Thu, 18 Jun 2015 12:50:33 +0300 From: David Weinehall To: intel-gfx Message-ID: <20150618095033.GH14570@boom> Mail-Followup-To: intel-gfx MIME-Version: 1.0 Content-Disposition: inline X-Editor: Vi Improved X-Accept-Language: Swedish, English X-GPG-Fingerprint: ED69 8CF5 6102 21B9 AFD1 9DB7 0B27 96FD 15DA A404 X-GPG-Key: http://www.acc.umu.se/~tao/files/pub_15daa404.gpg.asc X-Clacks-Overhead: GNU Terry Pratchett User-Agent: Mutt/1.5.23 (2014-03-12) Subject: [Intel-gfx] [PATCH] drm/i915/skl: Buffer translation improvements X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-4.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds support for 0.85V VccIO on Skylake Y, separate buffer translation tables for Skylake U, and support for I_boost for the entries that needs this. Issue: VIZ-5677 Signed-off-by: David Weinehall --- drivers/gpu/drm/i915/i915_drv.h | 8 + drivers/gpu/drm/i915/i915_reg.h | 12 ++ drivers/gpu/drm/i915/intel_ddi.c | 433 +++++++++++++++++++++++++++++---------- drivers/gpu/drm/i915/intel_dp.c | 46 ++++- drivers/gpu/drm/i915/intel_drv.h | 2 + 5 files changed, 379 insertions(+), 122 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 491ef0cfcb0b..09a57a584f5f 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2415,6 +2415,14 @@ struct drm_i915_cmd_table { /* ULX machines are also considered ULT. */ #define IS_HSW_ULX(dev) (INTEL_DEVID(dev) == 0x0A0E || \ INTEL_DEVID(dev) == 0x0A1E) +#define IS_SKL_ULT(dev) (INTEL_DEVID(dev) == 0x1906 || \ + INTEL_DEVID(dev) == 0x1913 || \ + INTEL_DEVID(dev) == 0x1916 || \ + INTEL_DEVID(dev) == 0x1921 || \ + INTEL_DEVID(dev) == 0x1926) +#define IS_SKL_ULX(dev) (INTEL_DEVID(dev) == 0x190E || \ + INTEL_DEVID(dev) == 0x1915 || \ + INTEL_DEVID(dev) == 0x191E) #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary) #define SKL_REVID_A0 (0x0) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 0b979ad16d41..fb63ead2b8eb 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -1382,6 +1382,18 @@ enum skl_disp_power_wells { _PORT_TX_DW14_LN0_C) + \ _BXT_LANE_OFFSET(lane)) +/* UAIMI scratch pad register 1 */ +#define UAIMI_SPR1 0x4F074 +/* SKL VccIO mask */ +#define SKL_VCCIO_MASK 0x1 +/* SKL balance leg register */ +#define DISPIO_CR_TX_BMU_CR0 0x6C00C +/* I_boost values */ +#define BALANCE_LEG_SHIFT(port) (8+3*(port)) +#define BALANCE_LEG_MASK(port) (7<<(8+3*(port))) +/* Balance leg disable bits */ +#define BALANCE_LEG_DISABLE_SHIFT 23 + /* * Fence registers */ diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 31b29e8781ac..3abcb43bec8b 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -31,6 +31,7 @@ struct ddi_buf_trans { u32 trans1; /* balance leg enable, de-emph level */ u32 trans2; /* vref sel, vswing */ + u8 i_boost; /* SKL: I_boost; valid: 0x0, 0x1, 0x3, 0x7 */ }; /* HDMI/DVI modes ignore everything but the last 2 items. So we share @@ -38,134 +39,213 @@ struct ddi_buf_trans { * automatically adapt to HDMI connections as well */ static const struct ddi_buf_trans hsw_ddi_translations_dp[] = { - { 0x00FFFFFF, 0x0006000E }, - { 0x00D75FFF, 0x0005000A }, - { 0x00C30FFF, 0x00040006 }, - { 0x80AAAFFF, 0x000B0000 }, - { 0x00FFFFFF, 0x0005000A }, - { 0x00D75FFF, 0x000C0004 }, - { 0x80C30FFF, 0x000B0000 }, - { 0x00FFFFFF, 0x00040006 }, - { 0x80D75FFF, 0x000B0000 }, + { 0x00FFFFFF, 0x0006000E, 0x0 }, + { 0x00D75FFF, 0x0005000A, 0x0 }, + { 0x00C30FFF, 0x00040006, 0x0 }, + { 0x80AAAFFF, 0x000B0000, 0x0 }, + { 0x00FFFFFF, 0x0005000A, 0x0 }, + { 0x00D75FFF, 0x000C0004, 0x0 }, + { 0x80C30FFF, 0x000B0000, 0x0 }, + { 0x00FFFFFF, 0x00040006, 0x0 }, + { 0x80D75FFF, 0x000B0000, 0x0 }, }; static const struct ddi_buf_trans hsw_ddi_translations_fdi[] = { - { 0x00FFFFFF, 0x0007000E }, - { 0x00D75FFF, 0x000F000A }, - { 0x00C30FFF, 0x00060006 }, - { 0x00AAAFFF, 0x001E0000 }, - { 0x00FFFFFF, 0x000F000A }, - { 0x00D75FFF, 0x00160004 }, - { 0x00C30FFF, 0x001E0000 }, - { 0x00FFFFFF, 0x00060006 }, - { 0x00D75FFF, 0x001E0000 }, + { 0x00FFFFFF, 0x0007000E, 0x0 }, + { 0x00D75FFF, 0x000F000A, 0x0 }, + { 0x00C30FFF, 0x00060006, 0x0 }, + { 0x00AAAFFF, 0x001E0000, 0x0 }, + { 0x00FFFFFF, 0x000F000A, 0x0 }, + { 0x00D75FFF, 0x00160004, 0x0 }, + { 0x00C30FFF, 0x001E0000, 0x0 }, + { 0x00FFFFFF, 0x00060006, 0x0 }, + { 0x00D75FFF, 0x001E0000, 0x0 }, }; static const struct ddi_buf_trans hsw_ddi_translations_hdmi[] = { /* Idx NT mV d T mV d db */ - { 0x00FFFFFF, 0x0006000E }, /* 0: 400 400 0 */ - { 0x00E79FFF, 0x000E000C }, /* 1: 400 500 2 */ - { 0x00D75FFF, 0x0005000A }, /* 2: 400 600 3.5 */ - { 0x00FFFFFF, 0x0005000A }, /* 3: 600 600 0 */ - { 0x00E79FFF, 0x001D0007 }, /* 4: 600 750 2 */ - { 0x00D75FFF, 0x000C0004 }, /* 5: 600 900 3.5 */ - { 0x00FFFFFF, 0x00040006 }, /* 6: 800 800 0 */ - { 0x80E79FFF, 0x00030002 }, /* 7: 800 1000 2 */ - { 0x00FFFFFF, 0x00140005 }, /* 8: 850 850 0 */ - { 0x00FFFFFF, 0x000C0004 }, /* 9: 900 900 0 */ - { 0x00FFFFFF, 0x001C0003 }, /* 10: 950 950 0 */ - { 0x80FFFFFF, 0x00030002 }, /* 11: 1000 1000 0 */ + { 0x00FFFFFF, 0x0006000E, 0x0 },/* 0: 400 400 0 */ + { 0x00E79FFF, 0x000E000C, 0x0 },/* 1: 400 500 2 */ + { 0x00D75FFF, 0x0005000A, 0x0 },/* 2: 400 600 3.5 */ + { 0x00FFFFFF, 0x0005000A, 0x0 },/* 3: 600 600 0 */ + { 0x00E79FFF, 0x001D0007, 0x0 },/* 4: 600 750 2 */ + { 0x00D75FFF, 0x000C0004, 0x0 },/* 5: 600 900 3.5 */ + { 0x00FFFFFF, 0x00040006, 0x0 },/* 6: 800 800 0 */ + { 0x80E79FFF, 0x00030002, 0x0 },/* 7: 800 1000 2 */ + { 0x00FFFFFF, 0x00140005, 0x0 },/* 8: 850 850 0 */ + { 0x00FFFFFF, 0x000C0004, 0x0 },/* 9: 900 900 0 */ + { 0x00FFFFFF, 0x001C0003, 0x0 },/* 10: 950 950 0 */ + { 0x80FFFFFF, 0x00030002, 0x0 },/* 11: 1000 1000 0 */ }; static const struct ddi_buf_trans bdw_ddi_translations_edp[] = { - { 0x00FFFFFF, 0x00000012 }, - { 0x00EBAFFF, 0x00020011 }, - { 0x00C71FFF, 0x0006000F }, - { 0x00AAAFFF, 0x000E000A }, - { 0x00FFFFFF, 0x00020011 }, - { 0x00DB6FFF, 0x0005000F }, - { 0x00BEEFFF, 0x000A000C }, - { 0x00FFFFFF, 0x0005000F }, - { 0x00DB6FFF, 0x000A000C }, + { 0x00FFFFFF, 0x00000012, 0x0 }, + { 0x00EBAFFF, 0x00020011, 0x0 }, + { 0x00C71FFF, 0x0006000F, 0x0 }, + { 0x00AAAFFF, 0x000E000A, 0x0 }, + { 0x00FFFFFF, 0x00020011, 0x0 }, + { 0x00DB6FFF, 0x0005000F, 0x0 }, + { 0x00BEEFFF, 0x000A000C, 0x0 }, + { 0x00FFFFFF, 0x0005000F, 0x0 }, + { 0x00DB6FFF, 0x000A000C, 0x0 }, }; static const struct ddi_buf_trans bdw_ddi_translations_dp[] = { - { 0x00FFFFFF, 0x0007000E }, - { 0x00D75FFF, 0x000E000A }, - { 0x00BEFFFF, 0x00140006 }, - { 0x80B2CFFF, 0x001B0002 }, - { 0x00FFFFFF, 0x000E000A }, - { 0x00DB6FFF, 0x00160005 }, - { 0x80C71FFF, 0x001A0002 }, - { 0x00F7DFFF, 0x00180004 }, - { 0x80D75FFF, 0x001B0002 }, + { 0x00FFFFFF, 0x0007000E, 0x0 }, + { 0x00D75FFF, 0x000E000A, 0x0 }, + { 0x00BEFFFF, 0x00140006, 0x0 }, + { 0x80B2CFFF, 0x001B0002, 0x0 }, + { 0x00FFFFFF, 0x000E000A, 0x0 }, + { 0x00DB6FFF, 0x00160005, 0x0 }, + { 0x80C71FFF, 0x001A0002, 0x0 }, + { 0x00F7DFFF, 0x00180004, 0x0 }, + { 0x80D75FFF, 0x001B0002, 0x0 }, }; static const struct ddi_buf_trans bdw_ddi_translations_fdi[] = { - { 0x00FFFFFF, 0x0001000E }, - { 0x00D75FFF, 0x0004000A }, - { 0x00C30FFF, 0x00070006 }, - { 0x00AAAFFF, 0x000C0000 }, - { 0x00FFFFFF, 0x0004000A }, - { 0x00D75FFF, 0x00090004 }, - { 0x00C30FFF, 0x000C0000 }, - { 0x00FFFFFF, 0x00070006 }, - { 0x00D75FFF, 0x000C0000 }, + { 0x00FFFFFF, 0x0001000E, 0x0 }, + { 0x00D75FFF, 0x0004000A, 0x0 }, + { 0x00C30FFF, 0x00070006, 0x0 }, + { 0x00AAAFFF, 0x000C0000, 0x0 }, + { 0x00FFFFFF, 0x0004000A, 0x0 }, + { 0x00D75FFF, 0x00090004, 0x0 }, + { 0x00C30FFF, 0x000C0000, 0x0 }, + { 0x00FFFFFF, 0x00070006, 0x0 }, + { 0x00D75FFF, 0x000C0000, 0x0 }, }; static const struct ddi_buf_trans bdw_ddi_translations_hdmi[] = { /* Idx NT mV d T mV df db */ - { 0x00FFFFFF, 0x0007000E }, /* 0: 400 400 0 */ - { 0x00D75FFF, 0x000E000A }, /* 1: 400 600 3.5 */ - { 0x00BEFFFF, 0x00140006 }, /* 2: 400 800 6 */ - { 0x00FFFFFF, 0x0009000D }, /* 3: 450 450 0 */ - { 0x00FFFFFF, 0x000E000A }, /* 4: 600 600 0 */ - { 0x00D7FFFF, 0x00140006 }, /* 5: 600 800 2.5 */ - { 0x80CB2FFF, 0x001B0002 }, /* 6: 600 1000 4.5 */ - { 0x00FFFFFF, 0x00140006 }, /* 7: 800 800 0 */ - { 0x80E79FFF, 0x001B0002 }, /* 8: 800 1000 2 */ - { 0x80FFFFFF, 0x001B0002 }, /* 9: 1000 1000 0 */ + { 0x00FFFFFF, 0x0007000E, 0x0 },/* 0: 400 400 0 */ + { 0x00D75FFF, 0x000E000A, 0x0 },/* 1: 400 600 3.5 */ + { 0x00BEFFFF, 0x00140006, 0x0 },/* 2: 400 800 6 */ + { 0x00FFFFFF, 0x0009000D, 0x0 },/* 3: 450 450 0 */ + { 0x00FFFFFF, 0x000E000A, 0x0 },/* 4: 600 600 0 */ + { 0x00D7FFFF, 0x00140006, 0x0 },/* 5: 600 800 2.5 */ + { 0x80CB2FFF, 0x001B0002, 0x0 },/* 6: 600 1000 4.5 */ + { 0x00FFFFFF, 0x00140006, 0x0 },/* 7: 800 800 0 */ + { 0x80E79FFF, 0x001B0002, 0x0 },/* 8: 800 1000 2 */ + { 0x80FFFFFF, 0x001B0002, 0x0 },/* 9: 1000 1000 0 */ }; +/* Skylake H, S, and Skylake Y with 0.95V VccIO */ static const struct ddi_buf_trans skl_ddi_translations_dp[] = { - { 0x00000018, 0x000000a2 }, - { 0x00004014, 0x0000009B }, - { 0x00006012, 0x00000088 }, - { 0x00008010, 0x00000087 }, - { 0x00000018, 0x0000009B }, - { 0x00004014, 0x00000088 }, - { 0x00006012, 0x00000087 }, - { 0x00000018, 0x00000088 }, - { 0x00004014, 0x00000087 }, + { 0x00002016, 0x000000A0, 0x0 }, + { 0x00005012, 0x0000009B, 0x0 }, + { 0x00007011, 0x00000088, 0x0 }, + { 0x00009010, 0x000000C7, 0x0 }, + { 0x00002016, 0x0000009B, 0x0 }, + { 0x00005012, 0x00000088, 0x0 }, + { 0x00007011, 0x000000C7, 0x0 }, + { 0x00002016, 0x000000DF, 0x0 }, + { 0x00005012, 0x000000C7, 0x0 }, }; -/* eDP 1.4 low vswing translation parameters */ +/* Skylake U */ +static const struct ddi_buf_trans skl_u_ddi_translations_dp[] = { + { 0x00002016, 0x000000A2, 0x0 }, + { 0x00005012, 0x00000088, 0x0 }, + { 0x00007011, 0x00000087, 0x0 }, + { 0x80009010, 0x000000C7, 0x1 }, /* Uses I_boost */ + { 0x00002016, 0x0000009D, 0x0 }, + { 0x00005012, 0x000000C7, 0x0 }, + { 0x00007011, 0x000000C7, 0x0 }, + { 0x00002016, 0x00000088, 0x0 }, + { 0x00005012, 0x000000C7, 0x0 }, +}; + +/* Skylake Y with 0.85V VccIO */ +static const struct ddi_buf_trans skl_y_085v_ddi_translations_dp[] = { + { 0x00000018, 0x000000A2, 0x0 }, + { 0x00005012, 0x00000088, 0x0 }, + { 0x00007011, 0x00000087, 0x0 }, + { 0x80009010, 0x000000C7, 0x1 }, /* Uses I_boost */ + { 0x00000018, 0x0000009D, 0x0 }, + { 0x00005012, 0x000000C7, 0x0 }, + { 0x00007011, 0x000000C7, 0x0 }, + { 0x00000018, 0x00000088, 0x0 }, + { 0x00005012, 0x000000C7, 0x0 }, +}; + +/* + * Skylake H and S, and Skylake Y with 0.95V VccIO + * eDP 1.4 low vswing translation parameters + */ static const struct ddi_buf_trans skl_ddi_translations_edp[] = { - { 0x00000018, 0x000000a8 }, - { 0x00002016, 0x000000ab }, - { 0x00006012, 0x000000a2 }, - { 0x00008010, 0x00000088 }, - { 0x00000018, 0x000000ab }, - { 0x00004014, 0x000000a2 }, - { 0x00006012, 0x000000a6 }, - { 0x00000018, 0x000000a2 }, - { 0x00005013, 0x0000009c }, - { 0x00000018, 0x00000088 }, + { 0x00000018, 0x000000A8, 0x0 }, + { 0x00004013, 0x000000A9, 0x0 }, + { 0x00007011, 0x000000A2, 0x0 }, + { 0x00009010, 0x0000009C, 0x0 }, + { 0x00000018, 0x000000A9, 0x0 }, + { 0x00006013, 0x000000A2, 0x0 }, + { 0x00007011, 0x000000A6, 0x0 }, + { 0x00000018, 0x000000AB, 0x0 }, + { 0x00007013, 0x0000009F, 0x0 }, + { 0x00000018, 0x000000DF, 0x0 }, }; +/* + * Skylake U + * eDP 1.4 low vswing translation parameters + */ +static const struct ddi_buf_trans skl_u_ddi_translations_edp[] = { + { 0x00000018, 0x000000A8, 0x0 }, + { 0x00004013, 0x000000A9, 0x0 }, + { 0x00007011, 0x000000A2, 0x0 }, + { 0x00009010, 0x0000009C, 0x0 }, + { 0x00000018, 0x000000A9, 0x0 }, + { 0x00006013, 0x000000A2, 0x0 }, + { 0x00007011, 0x000000A6, 0x0 }, + { 0x00002016, 0x000000AB, 0x0 }, + { 0x00005013, 0x0000009F, 0x0 }, + { 0x00000018, 0x000000DF, 0x0 }, +}; +/* + * Skylake Y with 0.95V VccIO + * eDP 1.4 low vswing translation parameters + */ +static const struct ddi_buf_trans skl_y_085v_ddi_translations_edp[] = { + { 0x00000018, 0x000000A8, 0x0 }, + { 0x00004013, 0x000000AB, 0x0 }, + { 0x00007011, 0x000000A4, 0x0 }, + { 0x00009010, 0x000000DF, 0x0 }, + { 0x00000018, 0x000000AA, 0x0 }, + { 0x00006013, 0x000000A4, 0x0 }, + { 0x00007011, 0x0000009D, 0x0 }, + { 0x00000018, 0x000000A0, 0x0 }, + { 0x00006012, 0x000000DF, 0x0 }, + { 0x00000018, 0x0000008A, 0x0 }, +}; + +/* Skylake H, S and U, and Skylake Y with 0.95V VccIO */ static const struct ddi_buf_trans skl_ddi_translations_hdmi[] = { - { 0x00000018, 0x000000ac }, - { 0x00005012, 0x0000009d }, - { 0x00007011, 0x00000088 }, - { 0x00000018, 0x000000a1 }, - { 0x00000018, 0x00000098 }, - { 0x00004013, 0x00000088 }, - { 0x00006012, 0x00000087 }, - { 0x00000018, 0x000000df }, - { 0x00003015, 0x00000087 }, - { 0x00003015, 0x000000c7 }, - { 0x00000018, 0x000000c7 }, + { 0x00000018, 0x000000AC, 0x0 }, + { 0x00005012, 0x0000009D, 0x0 }, + { 0x00007011, 0x00000088, 0x0 }, + { 0x00000018, 0x000000A1, 0x0 }, + { 0x00000018, 0x00000098, 0x0 }, + { 0x00004013, 0x00000088, 0x0 }, + { 0x00006012, 0x00000087, 0x0 }, + { 0x00000018, 0x000000DF, 0x0 }, + { 0x00003015, 0x00000087, 0x0 }, /* Default */ + { 0x00003015, 0x000000C7, 0x0 }, + { 0x00000018, 0x000000C7, 0x0 }, +}; + +/* Skylake Y with 0.85V VccIO */ +static const struct ddi_buf_trans skl_y_085v_ddi_translations_hdmi[] = { + { 0x00000018, 0x000000A1, 0x0 }, + { 0x00005012, 0x000000DF, 0x0 }, + { 0x00007011, 0x00000084, 0x0 }, + { 0x00000018, 0x000000A4, 0x0 }, + { 0x00000018, 0x0000009D, 0x0 }, + { 0x00004013, 0x00000080, 0x0 }, + { 0x00006013, 0x000000C7, 0x0 }, + { 0x00000018, 0x0000008A, 0x0 }, + { 0x00003015, 0x000000C7, 0x0 }, /* Default */ + { 0x80003015, 0x000000C7, 0x7 }, /* Uses I_boost */ + { 0x00000018, 0x000000C7, 0x0 }, }; struct bxt_ddi_buf_trans { @@ -190,7 +270,7 @@ static const struct bxt_ddi_buf_trans bxt_ddi_translations_dp[] = { { 154, 0x9A, 0, 64, false }, /* 6: 600 6 */ { 102, 0x9A, 0, 128, false }, /* 7: 800 0 */ { 154, 0x9A, 0, 85, false }, /* 8: 800 3.5 */ - { 154, 0x9A, 1, 128, false }, /* 9: 1200 0 */ + { 154, 0x9A, 1, 128, false }, /* 9: 1200 0 */ }; /* BSpec has 2 recommended values - entries 0 and 8. @@ -249,6 +329,99 @@ intel_dig_port_supports_hdmi(const struct intel_digital_port *intel_dig_port) return intel_dig_port->hdmi.hdmi_reg; } +static const struct ddi_buf_trans *skl_get_buf_trans_dp(struct drm_device *dev, + int *n_entries) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + const struct ddi_buf_trans *ddi_translations; + static int is_095v = -1; + + if (is_095v == -1) { + u32 spr1 = I915_READ(UAIMI_SPR1); + is_095v = spr1 & SKL_VCCIO_MASK; + } + + if (IS_SKL_ULX(dev) && !is_095v) { + ddi_translations = skl_y_085v_ddi_translations_dp; + *n_entries = ARRAY_SIZE(skl_y_085v_ddi_translations_dp); + } else if (IS_SKL_ULT(dev)) { + ddi_translations = skl_u_ddi_translations_dp; + *n_entries = ARRAY_SIZE(skl_u_ddi_translations_dp); + } else { + ddi_translations = skl_ddi_translations_dp; + *n_entries = ARRAY_SIZE(skl_ddi_translations_dp); + } + + return ddi_translations; +} + +static const struct ddi_buf_trans *skl_get_buf_trans_edp(struct drm_device *dev, + int *n_entries) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + const struct ddi_buf_trans *ddi_translations; + static int is_095v = -1; + + if (is_095v == -1) { + u32 spr1 = I915_READ(UAIMI_SPR1); + is_095v = spr1 & SKL_VCCIO_MASK; + } + + if (IS_SKL_ULX(dev) && !is_095v) { + if (dev_priv->edp_low_vswing) { + ddi_translations = skl_y_085v_ddi_translations_edp; + *n_entries = + ARRAY_SIZE(skl_y_085v_ddi_translations_edp); + } else { + ddi_translations = skl_y_085v_ddi_translations_dp; + *n_entries = + ARRAY_SIZE(skl_y_085v_ddi_translations_dp); + } + } else if (IS_SKL_ULT(dev)) { + if (dev_priv->edp_low_vswing) { + ddi_translations = skl_u_ddi_translations_edp; + *n_entries = ARRAY_SIZE(skl_u_ddi_translations_edp); + } else { + ddi_translations = skl_u_ddi_translations_dp; + *n_entries = ARRAY_SIZE(skl_u_ddi_translations_dp); + } + } else { + if (dev_priv->edp_low_vswing) { + ddi_translations = skl_ddi_translations_edp; + *n_entries = ARRAY_SIZE(skl_ddi_translations_edp); + } else { + ddi_translations = skl_ddi_translations_dp; + *n_entries = ARRAY_SIZE(skl_ddi_translations_dp); + } + } + + return ddi_translations; +} + +static const struct ddi_buf_trans * +skl_get_buf_trans_hdmi(struct drm_device *dev, + int *n_entries) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + const struct ddi_buf_trans *ddi_translations; + static int is_095v = -1; + + if (is_095v == -1) { + u32 spr1 = I915_READ(UAIMI_SPR1); + is_095v = spr1 & SKL_VCCIO_MASK; + } + + if (IS_SKL_ULX(dev) && !is_095v) { + ddi_translations = skl_y_085v_ddi_translations_hdmi; + *n_entries = ARRAY_SIZE(skl_y_085v_ddi_translations_hdmi); + } else { + ddi_translations = skl_ddi_translations_hdmi; + *n_entries = ARRAY_SIZE(skl_ddi_translations_hdmi); + } + + return ddi_translations; +} + /* * Starting with Haswell, DDI port buffers must be programmed with correct * values in advance. The buffer values are different for FDI and DP modes, @@ -279,20 +452,13 @@ static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port, INTEL_OUTPUT_HDMI); return; } else if (IS_SKYLAKE(dev)) { - ddi_translations_fdi = NULL; - ddi_translations_dp = skl_ddi_translations_dp; - n_dp_entries = ARRAY_SIZE(skl_ddi_translations_dp); - if (dev_priv->edp_low_vswing) { - ddi_translations_edp = skl_ddi_translations_edp; - n_edp_entries = ARRAY_SIZE(skl_ddi_translations_edp); - } else { - ddi_translations_edp = skl_ddi_translations_dp; - n_edp_entries = ARRAY_SIZE(skl_ddi_translations_dp); - } - - ddi_translations_hdmi = skl_ddi_translations_hdmi; - n_hdmi_entries = ARRAY_SIZE(skl_ddi_translations_hdmi); - hdmi_default_entry = 7; + ddi_translations_dp = + skl_get_buf_trans_dp(dev, &n_dp_entries); + ddi_translations_edp = + skl_get_buf_trans_edp(dev, &n_edp_entries); + ddi_translations_hdmi = + skl_get_buf_trans_hdmi(dev, &n_hdmi_entries); + hdmi_default_entry = 8; } else if (IS_BROADWELL(dev)) { ddi_translations_fdi = bdw_ddi_translations_fdi; ddi_translations_dp = bdw_ddi_translations_dp; @@ -1806,6 +1972,47 @@ void intel_ddi_disable_pipe_clock(struct intel_crtc *intel_crtc) TRANS_CLK_SEL_DISABLED); } +void skl_ddi_set_iboost(struct drm_device *dev, u32 level, + enum port port, int type) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + const struct ddi_buf_trans *ddi_translations; + uint8_t iboost; + int n_entries; + u32 reg; + + if (type == INTEL_OUTPUT_DISPLAYPORT) { + ddi_translations = skl_get_buf_trans_dp(dev, &n_entries); + iboost = ddi_translations[port].i_boost; + } else if (type == INTEL_OUTPUT_EDP) { + ddi_translations = skl_get_buf_trans_edp(dev, &n_entries); + iboost = ddi_translations[port].i_boost; + } else if (type == INTEL_OUTPUT_HDMI) { + ddi_translations = skl_get_buf_trans_hdmi(dev, &n_entries); + iboost = ddi_translations[port].i_boost; + } else { + return; + } + + /* Make sure that the requested I_boost is valid */ + if (iboost && iboost != 0x1 && iboost != 0x3 && iboost != 0x7) { + DRM_ERROR("Invalid I_boost value %u\n", iboost); + return; + } + + reg = I915_READ(DISPIO_CR_TX_BMU_CR0); + reg &= ~BALANCE_LEG_MASK(port); + reg &= ~(1 << (BALANCE_LEG_DISABLE_SHIFT + port)); + + if (iboost) { + reg |= iboost << BALANCE_LEG_SHIFT(port); + } else { + reg |= 1 << (BALANCE_LEG_DISABLE_SHIFT + port); + } + + I915_WRITE(DISPIO_CR_TX_BMU_CR0, reg); +} + void bxt_ddi_vswing_sequence(struct drm_device *dev, u32 level, enum port port, int type) { diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index f52eef138247..807c77d8dabc 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -3454,17 +3454,10 @@ hsw_signal_levels(uint8_t train_set) } } -static void bxt_signal_levels(struct intel_dp *intel_dp) +static uint32_t get_signal_level(int signal_levels) { - struct intel_digital_port *dport = dp_to_dig_port(intel_dp); - enum port port = dport->port; - struct drm_device *dev = dport->base.base.dev; - struct intel_encoder *encoder = &dport->base; - uint8_t train_set = intel_dp->train_set[0]; - uint32_t level = 0; + uint32_t level; - int signal_levels = train_set & (DP_TRAIN_VOLTAGE_SWING_MASK | - DP_TRAIN_PRE_EMPHASIS_MASK); switch (signal_levels) { default: DRM_DEBUG_KMS("Unsupported voltage swing/pre-emph level\n"); @@ -3500,6 +3493,38 @@ static void bxt_signal_levels(struct intel_dp *intel_dp) break; } + return level; +} + +static void skl_set_iboost(struct intel_dp *intel_dp) +{ + struct intel_digital_port *dport = dp_to_dig_port(intel_dp); + enum port port = dport->port; + struct drm_device *dev = dport->base.base.dev; + struct intel_encoder *encoder = &dport->base; + uint8_t train_set = intel_dp->train_set[0]; + uint32_t level; + + int signal_levels = train_set & (DP_TRAIN_VOLTAGE_SWING_MASK | + DP_TRAIN_PRE_EMPHASIS_MASK); + level = get_signal_level(signal_levels); + + skl_ddi_set_iboost(dev, level, port, encoder->type); +} + +static void bxt_signal_levels(struct intel_dp *intel_dp) +{ + struct intel_digital_port *dport = dp_to_dig_port(intel_dp); + enum port port = dport->port; + struct drm_device *dev = dport->base.base.dev; + struct intel_encoder *encoder = &dport->base; + uint8_t train_set = intel_dp->train_set[0]; + uint32_t level = 0; + + int signal_levels = train_set & (DP_TRAIN_VOLTAGE_SWING_MASK | + DP_TRAIN_PRE_EMPHASIS_MASK); + level = get_signal_level(signal_levels); + bxt_ddi_vswing_sequence(dev, level, port, encoder->type); } @@ -3520,6 +3545,9 @@ intel_dp_set_signal_levels(struct intel_dp *intel_dp, uint32_t *DP) } else if (HAS_DDI(dev)) { signal_levels = hsw_signal_levels(train_set); mask = DDI_BUF_EMP_MASK; + + if (IS_SKYLAKE(dev)) + skl_set_iboost(intel_dp); } else if (IS_CHERRYVIEW(dev)) { signal_levels = chv_signal_levels(intel_dp); mask = 0; diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index bcafefcf048b..b2ebecef6dec 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -950,6 +950,8 @@ void intel_ddi_init_dp_buf_reg(struct intel_encoder *encoder); void intel_ddi_clock_get(struct intel_encoder *encoder, struct intel_crtc_state *pipe_config); void intel_ddi_set_vc_payload_alloc(struct drm_crtc *crtc, bool state); +void skl_ddi_set_iboost(struct drm_device *dev, u32 level, + enum port port, int type); void bxt_ddi_vswing_sequence(struct drm_device *dev, u32 level, enum port port, int type);