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path: root/drivers/gpu/drm/i915/intel_ddi.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_ddi.c')
-rw-r--r--drivers/gpu/drm/i915/intel_ddi.c1117
1 files changed, 750 insertions, 367 deletions
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index cacb07b7a8f1..61575f67a626 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 and S */
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[] = {
+ { 0x0000201B, 0x000000A2, 0x0 },
+ { 0x00005012, 0x00000088, 0x0 },
+ { 0x00007011, 0x00000087, 0x0 },
+ { 0x80009010, 0x000000C7, 0x1 }, /* Uses I_boost level 0x1 */
+ { 0x0000201B, 0x0000009D, 0x0 },
+ { 0x00005012, 0x000000C7, 0x0 },
+ { 0x00007011, 0x000000C7, 0x0 },
+ { 0x00002016, 0x00000088, 0x0 },
+ { 0x00005012, 0x000000C7, 0x0 },
+};
+
+/* Skylake Y */
+static const struct ddi_buf_trans skl_y_ddi_translations_dp[] = {
+ { 0x00000018, 0x000000A2, 0x0 },
+ { 0x00005012, 0x00000088, 0x0 },
+ { 0x00007011, 0x00000087, 0x0 },
+ { 0x80009010, 0x000000C7, 0x3 }, /* Uses I_boost level 0x3 */
+ { 0x00000018, 0x0000009D, 0x0 },
+ { 0x00005012, 0x000000C7, 0x0 },
+ { 0x00007011, 0x000000C7, 0x0 },
+ { 0x00000018, 0x00000088, 0x0 },
+ { 0x00005012, 0x000000C7, 0x0 },
+};
+
+/*
+ * Skylake H and S
+ * 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
+ * eDP 1.4 low vswing translation parameters
+ */
+static const struct ddi_buf_trans skl_y_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 U, H and S */
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 */
+static const struct ddi_buf_trans skl_y_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 level 0x7 */
+ { 0x00000018, 0x000000C7, 0x0 },
};
struct bxt_ddi_buf_trans {
@@ -181,16 +261,16 @@ struct bxt_ddi_buf_trans {
*/
static const struct bxt_ddi_buf_trans bxt_ddi_translations_dp[] = {
/* Idx NT mV diff db */
- { 52, 0, 0, 128, true }, /* 0: 400 0 */
- { 78, 0, 0, 85, false }, /* 1: 400 3.5 */
- { 104, 0, 0, 64, false }, /* 2: 400 6 */
- { 154, 0, 0, 43, false }, /* 3: 400 9.5 */
- { 77, 0, 0, 128, false }, /* 4: 600 0 */
- { 116, 0, 0, 85, false }, /* 5: 600 3.5 */
- { 154, 0, 0, 64, false }, /* 6: 600 6 */
- { 102, 0, 0, 128, false }, /* 7: 800 0 */
- { 154, 0, 0, 85, false }, /* 8: 800 3.5 */
- { 154, 0x9A, 1, 128, false }, /* 9: 1200 0 */
+ { 52, 0x9A, 0, 128, true }, /* 0: 400 0 */
+ { 78, 0x9A, 0, 85, false }, /* 1: 400 3.5 */
+ { 104, 0x9A, 0, 64, false }, /* 2: 400 6 */
+ { 154, 0x9A, 0, 43, false }, /* 3: 400 9.5 */
+ { 77, 0x9A, 0, 128, false }, /* 4: 600 0 */
+ { 116, 0x9A, 0, 85, false }, /* 5: 600 3.5 */
+ { 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 */
};
/* BSpec has 2 recommended values - entries 0 and 8.
@@ -198,18 +278,21 @@ static const struct bxt_ddi_buf_trans bxt_ddi_translations_dp[] = {
*/
static const struct bxt_ddi_buf_trans bxt_ddi_translations_hdmi[] = {
/* Idx NT mV diff db */
- { 52, 0, 0, 128, false }, /* 0: 400 0 */
- { 52, 0, 0, 85, false }, /* 1: 400 3.5 */
- { 52, 0, 0, 64, false }, /* 2: 400 6 */
- { 42, 0, 0, 43, false }, /* 3: 400 9.5 */
- { 77, 0, 0, 128, false }, /* 4: 600 0 */
- { 77, 0, 0, 85, false }, /* 5: 600 3.5 */
- { 77, 0, 0, 64, false }, /* 6: 600 6 */
- { 102, 0, 0, 128, false }, /* 7: 800 0 */
- { 102, 0, 0, 85, false }, /* 8: 800 3.5 */
+ { 52, 0x9A, 0, 128, false }, /* 0: 400 0 */
+ { 52, 0x9A, 0, 85, false }, /* 1: 400 3.5 */
+ { 52, 0x9A, 0, 64, false }, /* 2: 400 6 */
+ { 42, 0x9A, 0, 43, false }, /* 3: 400 9.5 */
+ { 77, 0x9A, 0, 128, false }, /* 4: 600 0 */
+ { 77, 0x9A, 0, 85, false }, /* 5: 600 3.5 */
+ { 77, 0x9A, 0, 64, false }, /* 6: 600 6 */
+ { 102, 0x9A, 0, 128, false }, /* 7: 800 0 */
+ { 102, 0x9A, 0, 85, false }, /* 8: 800 3.5 */
{ 154, 0x9A, 1, 128, true }, /* 9: 1200 0 */
};
+static void bxt_ddi_vswing_sequence(struct drm_device *dev, u32 level,
+ enum port port, int type);
+
static void ddi_get_encoder_port(struct intel_encoder *intel_encoder,
struct intel_digital_port **dig_port,
enum port *port)
@@ -249,6 +332,77 @@ 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)
+{
+ const struct ddi_buf_trans *ddi_translations;
+
+ if (IS_SKL_ULX(dev)) {
+ ddi_translations = skl_y_ddi_translations_dp;
+ *n_entries = ARRAY_SIZE(skl_y_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;
+
+ if (IS_SKL_ULX(dev)) {
+ if (dev_priv->edp_low_vswing) {
+ ddi_translations = skl_y_ddi_translations_edp;
+ *n_entries = ARRAY_SIZE(skl_y_ddi_translations_edp);
+ } else {
+ ddi_translations = skl_y_ddi_translations_dp;
+ *n_entries = ARRAY_SIZE(skl_y_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)
+{
+ const struct ddi_buf_trans *ddi_translations;
+
+ if (IS_SKL_ULX(dev)) {
+ ddi_translations = skl_y_ddi_translations_hdmi;
+ *n_entries = ARRAY_SIZE(skl_y_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,
@@ -261,6 +415,7 @@ static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port,
{
struct drm_i915_private *dev_priv = dev->dev_private;
u32 reg;
+ u32 iboost_bit = 0;
int i, n_hdmi_entries, n_dp_entries, n_edp_entries, hdmi_default_entry,
size;
int hdmi_level = dev_priv->vbt.ddi_port_info[port].hdmi_level_shift;
@@ -280,19 +435,17 @@ static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port,
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;
+ /* If we're boosting the current, set bit 31 of trans1 */
+ if (dev_priv->vbt.ddi_port_info[port].hdmi_boost_level ||
+ dev_priv->vbt.ddi_port_info[port].dp_boost_level)
+ iboost_bit = 1<<31;
} else if (IS_BROADWELL(dev)) {
ddi_translations_fdi = bdw_ddi_translations_fdi;
ddi_translations_dp = bdw_ddi_translations_dp;
@@ -353,7 +506,7 @@ static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port,
}
for (i = 0, reg = DDI_BUF_TRANS(port); i < size; i++) {
- I915_WRITE(reg, ddi_translations[i].trans1);
+ I915_WRITE(reg, ddi_translations[i].trans1 | iboost_bit);
reg += 4;
I915_WRITE(reg, ddi_translations[i].trans2);
reg += 4;
@@ -368,7 +521,7 @@ static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port,
hdmi_level = hdmi_default_entry;
/* Entry 9 is for HDMI: */
- I915_WRITE(reg, ddi_translations_hdmi[hdmi_level].trans1);
+ I915_WRITE(reg, ddi_translations_hdmi[hdmi_level].trans1 | iboost_bit);
reg += 4;
I915_WRITE(reg, ddi_translations_hdmi[hdmi_level].trans2);
reg += 4;
@@ -625,11 +778,11 @@ intel_ddi_get_crtc_new_encoder(struct intel_crtc_state *crtc_state)
(void) (&__a == &__b); \
__a > __b ? (__a - __b) : (__b - __a); })
-struct wrpll_rnp {
+struct hsw_wrpll_rnp {
unsigned p, n2, r2;
};
-static unsigned wrpll_get_budget_for_freq(int clock)
+static unsigned hsw_wrpll_get_budget_for_freq(int clock)
{
unsigned budget;
@@ -703,9 +856,9 @@ static unsigned wrpll_get_budget_for_freq(int clock)
return budget;
}
-static void wrpll_update_rnp(uint64_t freq2k, unsigned budget,
- unsigned r2, unsigned n2, unsigned p,
- struct wrpll_rnp *best)
+static void hsw_wrpll_update_rnp(uint64_t freq2k, unsigned budget,
+ unsigned r2, unsigned n2, unsigned p,
+ struct hsw_wrpll_rnp *best)
{
uint64_t a, b, c, d, diff, diff_best;
@@ -762,8 +915,7 @@ static void wrpll_update_rnp(uint64_t freq2k, unsigned budget,
/* Otherwise a < c && b >= d, do nothing */
}
-static int intel_ddi_calc_wrpll_link(struct drm_i915_private *dev_priv,
- int reg)
+static int hsw_ddi_calc_wrpll_link(struct drm_i915_private *dev_priv, int reg)
{
int refclk = LC_FREQ;
int n, p, r;
@@ -856,6 +1008,26 @@ static int skl_calc_wrpll_link(struct drm_i915_private *dev_priv,
return dco_freq / (p0 * p1 * p2 * 5);
}
+static void ddi_dotclock_get(struct intel_crtc_state *pipe_config)
+{
+ int dotclock;
+
+ if (pipe_config->has_pch_encoder)
+ dotclock = intel_dotclock_calculate(pipe_config->port_clock,
+ &pipe_config->fdi_m_n);
+ else if (pipe_config->has_dp_encoder)
+ dotclock = intel_dotclock_calculate(pipe_config->port_clock,
+ &pipe_config->dp_m_n);
+ else if (pipe_config->has_hdmi_sink && pipe_config->pipe_bpp == 36)
+ dotclock = pipe_config->port_clock * 2 / 3;
+ else
+ dotclock = pipe_config->port_clock;
+
+ if (pipe_config->pixel_multiplier)
+ dotclock /= pipe_config->pixel_multiplier;
+
+ pipe_config->base.adjusted_mode.crtc_clock = dotclock;
+}
static void skl_ddi_clock_get(struct intel_encoder *encoder,
struct intel_crtc_state *pipe_config)
@@ -902,12 +1074,7 @@ static void skl_ddi_clock_get(struct intel_encoder *encoder,
pipe_config->port_clock = link_clock;
- if (pipe_config->has_dp_encoder)
- pipe_config->base.adjusted_mode.crtc_clock =
- intel_dotclock_calculate(pipe_config->port_clock,
- &pipe_config->dp_m_n);
- else
- pipe_config->base.adjusted_mode.crtc_clock = pipe_config->port_clock;
+ ddi_dotclock_get(pipe_config);
}
static void hsw_ddi_clock_get(struct intel_encoder *encoder,
@@ -929,10 +1096,10 @@ static void hsw_ddi_clock_get(struct intel_encoder *encoder,
link_clock = 270000;
break;
case PORT_CLK_SEL_WRPLL1:
- link_clock = intel_ddi_calc_wrpll_link(dev_priv, WRPLL_CTL1);
+ link_clock = hsw_ddi_calc_wrpll_link(dev_priv, WRPLL_CTL1);
break;
case PORT_CLK_SEL_WRPLL2:
- link_clock = intel_ddi_calc_wrpll_link(dev_priv, WRPLL_CTL2);
+ link_clock = hsw_ddi_calc_wrpll_link(dev_priv, WRPLL_CTL2);
break;
case PORT_CLK_SEL_SPLL:
pll = I915_READ(SPLL_CTL) & SPLL_PLL_FREQ_MASK;
@@ -954,23 +1121,32 @@ static void hsw_ddi_clock_get(struct intel_encoder *encoder,
pipe_config->port_clock = link_clock * 2;
- if (pipe_config->has_pch_encoder)
- pipe_config->base.adjusted_mode.crtc_clock =
- intel_dotclock_calculate(pipe_config->port_clock,
- &pipe_config->fdi_m_n);
- else if (pipe_config->has_dp_encoder)
- pipe_config->base.adjusted_mode.crtc_clock =
- intel_dotclock_calculate(pipe_config->port_clock,
- &pipe_config->dp_m_n);
- else
- pipe_config->base.adjusted_mode.crtc_clock = pipe_config->port_clock;
+ ddi_dotclock_get(pipe_config);
}
static int bxt_calc_pll_link(struct drm_i915_private *dev_priv,
enum intel_dpll_id dpll)
{
- /* FIXME formula not available in bspec */
- return 0;
+ struct intel_shared_dpll *pll;
+ struct intel_dpll_hw_state *state;
+ intel_clock_t clock;
+
+ /* For DDI ports we always use a shared PLL. */
+ if (WARN_ON(dpll == DPLL_ID_PRIVATE))
+ return 0;
+
+ pll = &dev_priv->shared_dplls[dpll];
+ state = &pll->config.hw_state;
+
+ clock.m1 = 2;
+ clock.m2 = (state->pll0 & PORT_PLL_M2_MASK) << 22;
+ if (state->pll3 & PORT_PLL_M2_FRAC_ENABLE)
+ clock.m2 |= state->pll2 & PORT_PLL_M2_FRAC_MASK;
+ clock.n = (state->pll1 & PORT_PLL_N_MASK) >> PORT_PLL_N_SHIFT;
+ clock.p1 = (state->ebb0 & PORT_PLL_P1_MASK) >> PORT_PLL_P1_SHIFT;
+ clock.p2 = (state->ebb0 & PORT_PLL_P2_MASK) >> PORT_PLL_P2_SHIFT;
+
+ return chv_calc_dpll_params(100000, &clock);
}
static void bxt_ddi_clock_get(struct intel_encoder *encoder,
@@ -980,16 +1156,9 @@ static void bxt_ddi_clock_get(struct intel_encoder *encoder,
enum port port = intel_ddi_get_encoder_port(encoder);
uint32_t dpll = port;
- pipe_config->port_clock =
- bxt_calc_pll_link(dev_priv, dpll);
+ pipe_config->port_clock = bxt_calc_pll_link(dev_priv, dpll);
- if (pipe_config->has_dp_encoder)
- pipe_config->base.adjusted_mode.crtc_clock =
- intel_dotclock_calculate(pipe_config->port_clock,
- &pipe_config->dp_m_n);
- else
- pipe_config->base.adjusted_mode.crtc_clock =
- pipe_config->port_clock;
+ ddi_dotclock_get(pipe_config);
}
void intel_ddi_clock_get(struct intel_encoder *encoder,
@@ -1011,12 +1180,12 @@ hsw_ddi_calculate_wrpll(int clock /* in Hz */,
{
uint64_t freq2k;
unsigned p, n2, r2;
- struct wrpll_rnp best = { 0, 0, 0 };
+ struct hsw_wrpll_rnp best = { 0, 0, 0 };
unsigned budget;
freq2k = clock / 100;
- budget = wrpll_get_budget_for_freq(clock);
+ budget = hsw_wrpll_get_budget_for_freq(clock);
/* Special case handling for 540 pixel clock: bypass WR PLL entirely
* and directly pass the LC PLL to it. */
@@ -1060,8 +1229,8 @@ hsw_ddi_calculate_wrpll(int clock /* in Hz */,
n2++) {
for (p = P_MIN; p <= P_MAX; p += P_INC)
- wrpll_update_rnp(freq2k, budget,
- r2, n2, p, &best);
+ hsw_wrpll_update_rnp(freq2k, budget,
+ r2, n2, p, &best);
}
}
@@ -1105,6 +1274,102 @@ hsw_ddi_pll_select(struct intel_crtc *intel_crtc,
return true;
}
+struct skl_wrpll_context {
+ uint64_t min_deviation; /* current minimal deviation */
+ uint64_t central_freq; /* chosen central freq */
+ uint64_t dco_freq; /* chosen dco freq */
+ unsigned int p; /* chosen divider */
+};
+
+static void skl_wrpll_context_init(struct skl_wrpll_context *ctx)
+{
+ memset(ctx, 0, sizeof(*ctx));
+
+ ctx->min_deviation = U64_MAX;
+}
+
+/* DCO freq must be within +1%/-6% of the DCO central freq */
+#define SKL_DCO_MAX_PDEVIATION 100
+#define SKL_DCO_MAX_NDEVIATION 600
+
+static void skl_wrpll_try_divider(struct skl_wrpll_context *ctx,
+ uint64_t central_freq,
+ uint64_t dco_freq,
+ unsigned int divider)
+{
+ uint64_t deviation;
+
+ deviation = div64_u64(10000 * abs_diff(dco_freq, central_freq),
+ central_freq);
+
+ /* positive deviation */
+ if (dco_freq >= central_freq) {
+ if (deviation < SKL_DCO_MAX_PDEVIATION &&
+ deviation < ctx->min_deviation) {
+ ctx->min_deviation = deviation;
+ ctx->central_freq = central_freq;
+ ctx->dco_freq = dco_freq;
+ ctx->p = divider;
+ }
+ /* negative deviation */
+ } else if (deviation < SKL_DCO_MAX_NDEVIATION &&
+ deviation < ctx->min_deviation) {
+ ctx->min_deviation = deviation;
+ ctx->central_freq = central_freq;
+ ctx->dco_freq = dco_freq;
+ ctx->p = divider;
+ }
+}
+
+static void skl_wrpll_get_multipliers(unsigned int p,
+ unsigned int *p0 /* out */,
+ unsigned int *p1 /* out */,
+ unsigned int *p2 /* out */)
+{
+ /* even dividers */
+ if (p % 2 == 0) {
+ unsigned int half = p / 2;
+
+ if (half == 1 || half == 2 || half == 3 || half == 5) {
+ *p0 = 2;
+ *p1 = 1;
+ *p2 = half;
+ } else if (half % 2 == 0) {
+ *p0 = 2;
+ *p1 = half / 2;
+ *p2 = 2;
+ } else if (half % 3 == 0) {
+ *p0 = 3;
+ *p1 = half / 3;
+ *p2 = 2;
+ } else if (half % 7 == 0) {
+ *p0 = 7;
+ *p1 = half / 7;
+ *p2 = 2;
+ }
+ } else if (p == 3 || p == 9) { /* 3, 5, 7, 9, 15, 21, 35 */
+ *p0 = 3;
+ *p1 = 1;
+ *p2 = p / 3;
+ } else if (p == 5 || p == 7) {
+ *p0 = p;
+ *p1 = 1;
+ *p2 = 1;
+ } else if (p == 15) {
+ *p0 = 3;
+ *p1 = 1;
+ *p2 = 5;
+ } else if (p == 21) {
+ *p0 = 7;
+ *p1 = 1;
+ *p2 = 3;
+ } else if (p == 35) {
+ *p0 = 7;
+ *p1 = 1;
+ *p2 = 5;
+ }
+}
+
struct skl_wrpll_params {
uint32_t dco_fraction;
uint32_t dco_integer;
@@ -1115,150 +1380,145 @@ struct skl_wrpll_params {
uint32_t central_freq;
};
-static void
-skl_ddi_calculate_wrpll(int clock /* in Hz */,
- struct skl_wrpll_params *wrpll_params)
+static void skl_wrpll_params_populate(struct skl_wrpll_params *params,
+ uint64_t afe_clock,
+ uint64_t central_freq,
+ uint32_t p0, uint32_t p1, uint32_t p2)
{
- uint64_t afe_clock = clock * 5; /* AFE Clock is 5x Pixel clock */
- uint64_t dco_central_freq[3] = {8400000000ULL,
- 9000000000ULL,
- 9600000000ULL};
- uint32_t min_dco_deviation = 400;
- uint32_t min_dco_index = 3;
- uint32_t P0[4] = {1, 2, 3, 7};
- uint32_t P2[4] = {1, 2, 3, 5};
- bool found = false;
- uint32_t candidate_p = 0;
- uint32_t candidate_p0[3] = {0}, candidate_p1[3] = {0};
- uint32_t candidate_p2[3] = {0};
- uint32_t dco_central_freq_deviation[3];
- uint32_t i, P1, k, dco_count;
- bool retry_with_odd = false;
uint64_t dco_freq;
- /* Determine P0, P1 or P2 */
- for (dco_count = 0; dco_count < 3; dco_count++) {
- found = false;
- candidate_p =
- div64_u64(dco_central_freq[dco_count], afe_clock);
- if (retry_with_odd == false)
- candidate_p = (candidate_p % 2 == 0 ?
- candidate_p : candidate_p + 1);
-
- for (P1 = 1; P1 < candidate_p; P1++) {
- for (i = 0; i < 4; i++) {
- if (!(P0[i] != 1 || P1 == 1))
- continue;
-
- for (k = 0; k < 4; k++) {
- if (P1 != 1 && P2[k] != 2)
- continue;
-
- if (candidate_p == P0[i] * P1 * P2[k]) {
- /* Found possible P0, P1, P2 */
- found = true;
- candidate_p0[dco_count] = P0[i];
- candidate_p1[dco_count] = P1;
- candidate_p2[dco_count] = P2[k];
- goto found;
- }
-
- }
- }
- }
+ switch (central_freq) {
+ case 9600000000ULL:
+ params->central_freq = 0;
+ break;
+ case 9000000000ULL:
+ params->central_freq = 1;
+ break;
+ case 8400000000ULL:
+ params->central_freq = 3;
+ }
-found:
- if (found) {
- dco_central_freq_deviation[dco_count] =
- div64_u64(10000 *
- abs_diff((candidate_p * afe_clock),
- dco_central_freq[dco_count]),
- dco_central_freq[dco_count]);
-
- if (dco_central_freq_deviation[dco_count] <
- min_dco_deviation) {
- min_dco_deviation =
- dco_central_freq_deviation[dco_count];
- min_dco_index = dco_count;
- }
- }
+ switch (p0) {
+ case 1:
+ params->pdiv = 0;
+ break;
+ case 2:
+ params->pdiv = 1;
+ break;
+ case 3:
+ params->pdiv = 2;
+ break;
+ case 7:
+ params->pdiv = 4;
+ break;
+ default:
+ WARN(1, "Incorrect PDiv\n");
+ }
- if (min_dco_index > 2 && dco_count == 2) {
- retry_with_odd = true;
- dco_count = 0;
- }
+ switch (p2) {
+ case 5:
+ params->kdiv = 0;
+ break;
+ case 2:
+ params->kdiv = 1;
+ break;
+ case 3:
+ params->kdiv = 2;
+ break;
+ case 1:
+ params->kdiv = 3;
+ break;
+ default:
+ WARN(1, "Incorrect KDiv\n");
}
- if (min_dco_index > 2) {
- WARN(1, "No valid values found for the given pixel clock\n");
- } else {
- wrpll_params->central_freq = dco_central_freq[min_dco_index];
+ params->qdiv_ratio = p1;
+ params->qdiv_mode = (params->qdiv_ratio == 1) ? 0 : 1;
- switch (dco_central_freq[min_dco_index]) {
- case 9600000000ULL:
- wrpll_params->central_freq = 0;
- break;
- case 9000000000ULL:
- wrpll_params->central_freq = 1;
- break;
- case 8400000000ULL:
- wrpll_params->central_freq = 3;
- }
+ dco_freq = p0 * p1 * p2 * afe_clock;
- switch (candidate_p0[min_dco_index]) {
- case 1:
- wrpll_params->pdiv = 0;
- break;
- case 2:
- wrpll_params->pdiv = 1;
- break;
- case 3:
- wrpll_params->pdiv = 2;
- break;
- case 7:
- wrpll_params->pdiv = 4;
- break;
- default:
- WARN(1, "Incorrect PDiv\n");
- }
+ /*
+ * Intermediate values are in Hz.
+ * Divide by MHz to match bsepc
+ */
+ params->dco_integer = div_u64(dco_freq, 24 * MHz(1));
+ params->dco_fraction =
+ div_u64((div_u64(dco_freq, 24) -
+ params->dco_integer * MHz(1)) * 0x8000, MHz(1));
+}
- switch (candidate_p2[min_dco_index]) {
- case 5:
- wrpll_params->kdiv = 0;
- break;
- case 2:
- wrpll_params->kdiv = 1;
- break;
- case 3:
- wrpll_params->kdiv = 2;
- break;
- case 1:
- wrpll_params->kdiv = 3;
- break;
- default:
- WARN(1, "Incorrect KDiv\n");
+static bool
+skl_ddi_calculate_wrpll(int clock /* in Hz */,
+ struct skl_wrpll_params *wrpll_params)
+{
+ uint64_t afe_clock = clock * 5; /* AFE Clock is 5x Pixel clock */
+ uint64_t dco_central_freq[3] = {8400000000ULL,
+ 9000000000ULL,
+ 9600000000ULL};
+ static const int even_dividers[] = { 4, 6, 8, 10, 12, 14, 16, 18, 20,
+ 24, 28, 30, 32, 36, 40, 42, 44,
+ 48, 52, 54, 56, 60, 64, 66, 68,
+ 70, 72, 76, 78, 80, 84, 88, 90,
+ 92, 96, 98 };
+ static const int odd_dividers[] = { 3, 5, 7, 9, 15, 21, 35 };
+ static const struct {
+ const int *list;
+ int n_dividers;
+ } dividers[] = {
+ { even_dividers, ARRAY_SIZE(even_dividers) },
+ { odd_dividers, ARRAY_SIZE(odd_dividers) },
+ };
+ struct skl_wrpll_context ctx;
+ unsigned int dco, d, i;
+ unsigned int p0, p1, p2;
+
+ skl_wrpll_context_init(&ctx);
+
+ for (d = 0; d < ARRAY_SIZE(dividers); d++) {
+ for (dco = 0; dco < ARRAY_SIZE(dco_central_freq); dco++) {
+ for (i = 0; i < dividers[d].n_dividers; i++) {
+ unsigned int p = dividers[d].list[i];
+ uint64_t dco_freq = p * afe_clock;
+
+ skl_wrpll_try_divider(&ctx,
+ dco_central_freq[dco],
+ dco_freq,
+ p);
+ /*
+ * Skip the remaining dividers if we're sure to
+ * have found the definitive divider, we can't
+ * improve a 0 deviation.
+ */
+ if (ctx.min_deviation == 0)
+ goto skip_remaining_dividers;
+ }
}
- wrpll_params->qdiv_ratio = candidate_p1[min_dco_index];
- wrpll_params->qdiv_mode =
- (wrpll_params->qdiv_ratio == 1) ? 0 : 1;
-
- dco_freq = candidate_p0[min_dco_index] *
- candidate_p1[min_dco_index] *
- candidate_p2[min_dco_index] * afe_clock;
-
+skip_remaining_dividers:
/*
- * Intermediate values are in Hz.
- * Divide by MHz to match bsepc
+ * If a solution is found with an even divider, prefer
+ * this one.
*/
- wrpll_params->dco_integer = div_u64(dco_freq, (24 * MHz(1)));
- wrpll_params->dco_fraction =
- div_u64(((div_u64(dco_freq, 24) -
- wrpll_params->dco_integer * MHz(1)) * 0x8000), MHz(1));
+ if (d == 0 && ctx.p)
+ break;
+ }
+ if (!ctx.p) {
+ DRM_DEBUG_DRIVER("No valid divider found for %dHz\n", clock);
+ return false;
}
-}
+ /*
+ * gcc incorrectly analyses that these can be used without being
+ * initialized. To be fair, it's hard to guess.
+ */
+ p0 = p1 = p2 = 0;
+ skl_wrpll_get_multipliers(ctx.p, &p0, &p1, &p2);
+ skl_wrpll_params_populate(wrpll_params, afe_clock, ctx.central_freq,
+ p0, p1, p2);
+
+ return true;
+}
static bool
skl_ddi_pll_select(struct intel_crtc *intel_crtc,
@@ -1281,7 +1541,8 @@ skl_ddi_pll_select(struct intel_crtc *intel_crtc,
ctrl1 |= DPLL_CTRL1_HDMI_MODE(0);
- skl_ddi_calculate_wrpll(clock * 1000, &wrpll_params);
+ if (!skl_ddi_calculate_wrpll(clock * 1000, &wrpll_params))
+ return false;
cfgcr1 = DPLL_CFGCR1_FREQ_ENABLE |
DPLL_CFGCR1_DCO_FRACTION(wrpll_params.dco_fraction) |
@@ -1293,17 +1554,14 @@ skl_ddi_pll_select(struct intel_crtc *intel_crtc,
DPLL_CFGCR2_PDIV(wrpll_params.pdiv) |
wrpll_params.central_freq;
} else if (intel_encoder->type == INTEL_OUTPUT_DISPLAYPORT) {
- struct drm_encoder *encoder = &intel_encoder->base;
- struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
-
- switch (intel_dp->link_bw) {
- case DP_LINK_BW_1_62:
+ switch (crtc_state->port_clock / 2) {
+ case 81000:
ctrl1 |= DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_810, 0);
break;
- case DP_LINK_BW_2_7:
+ case 135000:
ctrl1 |= DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_1350, 0);
break;
- case DP_LINK_BW_5_4:
+ case 270000:
ctrl1 |= DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_2700, 0);
break;
}
@@ -1334,6 +1592,7 @@ skl_ddi_pll_select(struct intel_crtc *intel_crtc,
/* bxt clock parameters */
struct bxt_clk_div {
+ int clock;
uint32_t p1;
uint32_t p2;
uint32_t m2_int;
@@ -1343,14 +1602,14 @@ struct bxt_clk_div {
};
/* pre-calculated values for DP linkrates */
-static struct bxt_clk_div bxt_dp_clk_val[7] = {
- /* 162 */ {4, 2, 32, 1677722, 1, 1},
- /* 270 */ {4, 1, 27, 0, 0, 1},
- /* 540 */ {2, 1, 27, 0, 0, 1},
- /* 216 */ {3, 2, 32, 1677722, 1, 1},
- /* 243 */ {4, 1, 24, 1258291, 1, 1},
- /* 324 */ {4, 1, 32, 1677722, 1, 1},
- /* 432 */ {3, 1, 32, 1677722, 1, 1}
+static const struct bxt_clk_div bxt_dp_clk_val[] = {
+ {162000, 4, 2, 32, 1677722, 1, 1},
+ {270000, 4, 1, 27, 0, 0, 1},
+ {540000, 2, 1, 27, 0, 0, 1},
+ {216000, 3, 2, 32, 1677722, 1, 1},
+ {243000, 4, 1, 24, 1258291, 1, 1},
+ {324000, 4, 1, 32, 1677722, 1, 1},
+ {432000, 3, 1, 32, 1677722, 1, 1}
};
static bool
@@ -1363,7 +1622,7 @@ bxt_ddi_pll_select(struct intel_crtc *intel_crtc,
struct bxt_clk_div clk_div = {0};
int vco = 0;
uint32_t prop_coef, int_coef, gain_ctl, targ_cnt;
- uint32_t dcoampovr_en_h, dco_amp, lanestagger;
+ uint32_t lanestagger;
if (intel_encoder->type == INTEL_OUTPUT_HDMI) {
intel_clock_t best_clock;
@@ -1390,29 +1649,19 @@ bxt_ddi_pll_select(struct intel_crtc *intel_crtc,
vco = best_clock.vco;
} else if (intel_encoder->type == INTEL_OUTPUT_DISPLAYPORT ||
intel_encoder->type == INTEL_OUTPUT_EDP) {
- struct drm_encoder *encoder = &intel_encoder->base;
- struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+ int i;
- switch (intel_dp->link_bw) {
- case DP_LINK_BW_1_62:
- clk_div = bxt_dp_clk_val[0];
- break;
- case DP_LINK_BW_2_7:
- clk_div = bxt_dp_clk_val[1];
- break;
- case DP_LINK_BW_5_4:
- clk_div = bxt_dp_clk_val[2];
- break;
- default:
- clk_div = bxt_dp_clk_val[0];
- DRM_ERROR("Unknown link rate\n");
+ clk_div = bxt_dp_clk_val[0];
+ for (i = 0; i < ARRAY_SIZE(bxt_dp_clk_val); ++i) {
+ if (bxt_dp_clk_val[i].clock == clock) {
+ clk_div = bxt_dp_clk_val[i];
+ break;
+ }
}
vco = clock * 10 / 2 * clk_div.p1 * clk_div.p2;
}
- dco_amp = 15;
- dcoampovr_en_h = 0;
- if (vco >= 6200000 && vco <= 6480000) {
+ if (vco >= 6200000 && vco <= 6700000) {
prop_coef = 4;
int_coef = 9;
gain_ctl = 3;
@@ -1423,8 +1672,6 @@ bxt_ddi_pll_select(struct intel_crtc *intel_crtc,
int_coef = 11;
gain_ctl = 3;
targ_cnt = 9;
- if (vco >= 4800000 && vco < 5400000)
- dcoampovr_en_h = 1;
} else if (vco == 5400000) {
prop_coef = 3;
int_coef = 8;
@@ -1466,10 +1713,13 @@ bxt_ddi_pll_select(struct intel_crtc *intel_crtc,
crtc_state->dpll_hw_state.pll8 = targ_cnt;
- if (dcoampovr_en_h)
- crtc_state->dpll_hw_state.pll10 = PORT_PLL_DCO_AMP_OVR_EN_H;
+ crtc_state->dpll_hw_state.pll9 = 5 << PORT_PLL_LOCK_THRESHOLD_SHIFT;
- crtc_state->dpll_hw_state.pll10 |= PORT_PLL_DCO_AMP(dco_amp);
+ crtc_state->dpll_hw_state.pll10 =
+ PORT_PLL_DCO_AMP(PORT_PLL_DCO_AMP_DEFAULT)
+ | PORT_PLL_DCO_AMP_OVR_EN_H;
+
+ crtc_state->dpll_hw_state.ebb4 = PORT_PLL_10BIT_CLK_ENABLE;
crtc_state->dpll_hw_state.pcsdw12 =
LANESTAGGER_STRAP_OVRD | lanestagger;
@@ -1799,8 +2049,65 @@ void intel_ddi_disable_pipe_clock(struct intel_crtc *intel_crtc)
TRANS_CLK_SEL_DISABLED);
}
-void bxt_ddi_vswing_sequence(struct drm_device *dev, u32 level,
- enum port port, int type)
+static 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;
+ uint8_t dp_iboost, hdmi_iboost;
+ int n_entries;
+ u32 reg;
+
+ /* VBT may override standard boost values */
+ dp_iboost = dev_priv->vbt.ddi_port_info[port].dp_boost_level;
+ hdmi_iboost = dev_priv->vbt.ddi_port_info[port].hdmi_boost_level;
+
+ if (type == INTEL_OUTPUT_DISPLAYPORT) {
+ if (dp_iboost) {
+ iboost = dp_iboost;
+ } else {
+ ddi_translations = skl_get_buf_trans_dp(dev, &n_entries);
+ iboost = ddi_translations[port].i_boost;
+ }
+ } else if (type == INTEL_OUTPUT_EDP) {
+ if (dp_iboost) {
+ iboost = dp_iboost;
+ } else {
+ ddi_translations = skl_get_buf_trans_edp(dev, &n_entries);
+ iboost = ddi_translations[port].i_boost;
+ }
+ } else if (type == INTEL_OUTPUT_HDMI) {
+ if (hdmi_iboost) {
+ iboost = hdmi_iboost;
+ } else {
+ 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);
+}
+
+static void bxt_ddi_vswing_sequence(struct drm_device *dev, u32 level,
+ enum port port, int type)
{
struct drm_i915_private *dev_priv = dev->dev_private;
const struct bxt_ddi_buf_trans *ddi_translations;
@@ -1860,6 +2167,73 @@ void bxt_ddi_vswing_sequence(struct drm_device *dev, u32 level,
I915_WRITE(BXT_PORT_PCS_DW10_GRP(port), val);
}
+static uint32_t translate_signal_level(int signal_levels)
+{
+ uint32_t level;
+
+ switch (signal_levels) {
+ default:
+ DRM_DEBUG_KMS("Unsupported voltage swing/pre-emphasis level: 0x%x\n",
+ signal_levels);
+ case DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_0:
+ level = 0;
+ break;
+ case DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_1:
+ level = 1;
+ break;
+ case DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_2:
+ level = 2;
+ break;
+ case DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_3:
+ level = 3;
+ break;
+
+ case DP_TRAIN_VOLTAGE_SWING_LEVEL_1 | DP_TRAIN_PRE_EMPH_LEVEL_0:
+ level = 4;
+ break;
+ case DP_TRAIN_VOLTAGE_SWING_LEVEL_1 | DP_TRAIN_PRE_EMPH_LEVEL_1:
+ level = 5;
+ break;
+ case DP_TRAIN_VOLTAGE_SWING_LEVEL_1 | DP_TRAIN_PRE_EMPH_LEVEL_2:
+ level = 6;
+ break;
+
+ case DP_TRAIN_VOLTAGE_SWING_LEVEL_2 | DP_TRAIN_PRE_EMPH_LEVEL_0:
+ level = 7;
+ break;
+ case DP_TRAIN_VOLTAGE_SWING_LEVEL_2 | DP_TRAIN_PRE_EMPH_LEVEL_1:
+ level = 8;
+ break;
+
+ case DP_TRAIN_VOLTAGE_SWING_LEVEL_3 | DP_TRAIN_PRE_EMPH_LEVEL_0:
+ level = 9;
+ break;
+ }
+
+ return level;
+}
+
+uint32_t ddi_signal_levels(struct intel_dp *intel_dp)
+{
+ struct intel_digital_port *dport = dp_to_dig_port(intel_dp);
+ struct drm_device *dev = dport->base.base.dev;
+ struct intel_encoder *encoder = &dport->base;
+ uint8_t train_set = intel_dp->train_set[0];
+ int signal_levels = train_set & (DP_TRAIN_VOLTAGE_SWING_MASK |
+ DP_TRAIN_PRE_EMPHASIS_MASK);
+ enum port port = dport->port;
+ uint32_t level;
+
+ level = translate_signal_level(signal_levels);
+
+ if (IS_SKYLAKE(dev))
+ skl_ddi_set_iboost(dev, level, port, encoder->type);
+ else if (IS_BROXTON(dev))
+ bxt_ddi_vswing_sequence(dev, level, port, encoder->type);
+
+ return DDI_BUF_TRANS_SELECT(level);
+}
+
static void intel_ddi_pre_enable(struct intel_encoder *intel_encoder)
{
struct drm_encoder *encoder = &intel_encoder->base;
@@ -2404,7 +2778,7 @@ static void bxt_ddi_pll_enable(struct drm_i915_private *dev_priv,
temp = I915_READ(BXT_PORT_PLL(port, 9));
temp &= ~PORT_PLL_LOCK_THRESHOLD_MASK;
- temp |= (5 << 1);
+ temp |= pll->config.hw_state.pll9;
I915_WRITE(BXT_PORT_PLL(port, 9), temp);
temp = I915_READ(BXT_PORT_PLL(port, 10));
@@ -2417,8 +2791,8 @@ static void bxt_ddi_pll_enable(struct drm_i915_private *dev_priv,
temp = I915_READ(BXT_PORT_PLL_EBB_4(port));
temp |= PORT_PLL_RECALIBRATE;
I915_WRITE(BXT_PORT_PLL_EBB_4(port), temp);
- /* Enable 10 bit clock */
- temp |= PORT_PLL_10BIT_CLK_ENABLE;
+ temp &= ~PORT_PLL_10BIT_CLK_ENABLE;
+ temp |= pll->config.hw_state.ebb4;
I915_WRITE(BXT_PORT_PLL_EBB_4(port), temp);
/* Enable PLL */
@@ -2469,13 +2843,38 @@ static bool bxt_ddi_pll_get_hw_state(struct drm_i915_private *dev_priv,
return false;
hw_state->ebb0 = I915_READ(BXT_PORT_PLL_EBB_0(port));
+ hw_state->ebb0 &= PORT_PLL_P1_MASK | PORT_PLL_P2_MASK;
+
+ hw_state->ebb4 = I915_READ(BXT_PORT_PLL_EBB_4(port));
+ hw_state->ebb4 &= PORT_PLL_10BIT_CLK_ENABLE;
+
hw_state->pll0 = I915_READ(BXT_PORT_PLL(port, 0));
+ hw_state->pll0 &= PORT_PLL_M2_MASK;
+
hw_state->pll1 = I915_READ(BXT_PORT_PLL(port, 1));
+ hw_state->pll1 &= PORT_PLL_N_MASK;
+
hw_state->pll2 = I915_READ(BXT_PORT_PLL(port, 2));
+ hw_state->pll2 &= PORT_PLL_M2_FRAC_MASK;
+
hw_state->pll3 = I915_READ(BXT_PORT_PLL(port, 3));
+ hw_state->pll3 &= PORT_PLL_M2_FRAC_ENABLE;
+
hw_state->pll6 = I915_READ(BXT_PORT_PLL(port, 6));
+ hw_state->pll6 &= PORT_PLL_PROP_COEFF_MASK |
+ PORT_PLL_INT_COEFF_MASK |
+ PORT_PLL_GAIN_CTL_MASK;
+
hw_state->pll8 = I915_READ(BXT_PORT_PLL(port, 8));
+ hw_state->pll8 &= PORT_PLL_TARGET_CNT_MASK;
+
+ hw_state->pll9 = I915_READ(BXT_PORT_PLL(port, 9));
+ hw_state->pll9 &= PORT_PLL_LOCK_THRESHOLD_MASK;
+
hw_state->pll10 = I915_READ(BXT_PORT_PLL(port, 10));
+ hw_state->pll10 &= PORT_PLL_DCO_AMP_OVR_EN_H |
+ PORT_PLL_DCO_AMP_MASK;
+
/*
* While we write to the group register to program all lanes at once we
* can read only lane registers. We configure all lanes the same way, so
@@ -2486,6 +2885,7 @@ static bool bxt_ddi_pll_get_hw_state(struct drm_i915_private *dev_priv,
DRM_DEBUG_DRIVER("lane stagger config different for lane 01 (%08x) and 23 (%08x)\n",
hw_state->pcsdw12,
I915_READ(BXT_PORT_PCS_DW12_LN23(port)));
+ hw_state->pcsdw12 &= LANE_STAGGER_MASK | LANESTAGGER_STRAP_OVRD;
return true;
}
@@ -2510,7 +2910,6 @@ void intel_ddi_pll_init(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
uint32_t val = I915_READ(LCPLL_CTL);
- int cdclk_freq;
if (IS_SKYLAKE(dev))
skl_shared_dplls_init(dev_priv);
@@ -2519,10 +2918,10 @@ void intel_ddi_pll_init(struct drm_device *dev)
else
hsw_shared_dplls_init(dev_priv);
- cdclk_freq = dev_priv->display.get_display_clock_speed(dev);
- DRM_DEBUG_KMS("CDCLK running at %dKHz\n", cdclk_freq);
-
if (IS_SKYLAKE(dev)) {
+ int cdclk_freq;
+
+ cdclk_freq = dev_priv->display.get_display_clock_speed(dev);
dev_priv->skl_boot_cdclk = cdclk_freq;
if (!(I915_READ(LCPLL1_CTL) & LCPLL_PLL_ENABLE))
DRM_ERROR("LCPLL1 is disabled\n");
@@ -2618,20 +3017,6 @@ void intel_ddi_fdi_disable(struct drm_crtc *crtc)
I915_WRITE(_FDI_RXA_CTL, val);
}
-static void intel_ddi_hot_plug(struct intel_encoder *intel_encoder)
-{
- struct intel_digital_port *intel_dig_port = enc_to_dig_port(&intel_encoder->base);
- int type = intel_dig_port->base.type;
-
- if (type != INTEL_OUTPUT_DISPLAYPORT &&
- type != INTEL_OUTPUT_EDP &&
- type != INTEL_OUTPUT_UNKNOWN) {
- return;
- }
-
- intel_dp_hot_plug(intel_encoder);
-}
-
void intel_ddi_get_config(struct intel_encoder *encoder,
struct intel_crtc_state *pipe_config)
{
@@ -2793,10 +3178,9 @@ void intel_ddi_init(struct drm_device *dev, enum port port)
dev_priv->vbt.ddi_port_info[port].supports_hdmi);
init_dp = dev_priv->vbt.ddi_port_info[port].supports_dp;
if (!init_dp && !init_hdmi) {
- DRM_DEBUG_KMS("VBT says port %c is not DVI/HDMI/DP compatible, assuming it is\n",
+ DRM_DEBUG_KMS("VBT says port %c is not DVI/HDMI/DP compatible, respect it\n",
port_name(port));
- init_hdmi = true;
- init_dp = true;
+ return;
}
intel_dig_port = kzalloc(sizeof(*intel_dig_port), GFP_KERNEL);
@@ -2825,14 +3209,13 @@ void intel_ddi_init(struct drm_device *dev, enum port port)
intel_encoder->type = INTEL_OUTPUT_UNKNOWN;
intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
intel_encoder->cloneable = 0;
- intel_encoder->hot_plug = intel_ddi_hot_plug;
if (init_dp) {
if (!intel_ddi_init_dp_connector(intel_dig_port))
goto err;
intel_dig_port->hpd_pulse = intel_dp_hpd_pulse;
- dev_priv->hpd_irq_port[port] = intel_dig_port;
+ dev_priv->hotplug.irq_port[port] = intel_dig_port;
}
/* In theory we don't need the encoder->type check, but leave it just in
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-16 04:34:36 +0000