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These changes are the raw update to linux-4.4.6-rt14. Kernel sources
[kvmfornfv.git] / kernel / drivers / gpu / drm / i915 / i915_params.c
diff --git a/kernel/drivers/gpu/drm/i915/i915_params.c b/kernel/drivers/gpu/drm/i915/i915_params.c
index bb64415..4be13a5 100644 (file)
--- a/kernel/drivers/gpu/drm/i915/i915_params.c
+++ b/kernel/drivers/gpu/drm/i915/i915_params.c
@@ -28,7 +28,6 @@ struct i915_params i915 __read_mostly = {
        .modeset = -1,
        .panel_ignore_lid = 1,
        .semaphores = -1,
-       .lvds_downclock = 0,
        .lvds_channel_mode = 0,
        .panel_use_ssc = -1,
        .vbt_sdvo_panel_type = -1,
@@ -39,7 +38,7 @@ struct i915_params i915 __read_mostly = {
        .enable_ppgtt = -1,
        .enable_psr = 0,
        .preliminary_hw_support = IS_ENABLED(CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT),
-       .disable_power_well = 1,
+       .disable_power_well = -1,
        .enable_ips = 1,
        .fastboot = 0,
        .prefault_disable = 0,
@@ -53,14 +52,17 @@ struct i915_params i915 __read_mostly = {
        .mmio_debug = 0,
        .verbose_state_checks = 1,
        .nuclear_pageflip = 0,
+       .edp_vswing = 0,
+       .enable_guc_submission = false,
+       .guc_log_level = -1,
 };
 
 module_param_named(modeset, i915.modeset, int, 0400);
 MODULE_PARM_DESC(modeset,
-       "Use kernel modesetting [KMS] (0=DRM_I915_KMS from .config, "
+       "Use kernel modesetting [KMS] (0=disable, "
        "1=on, -1=force vga console preference [default])");
 
-module_param_named(panel_ignore_lid, i915.panel_ignore_lid, int, 0600);
+module_param_named_unsafe(panel_ignore_lid, i915.panel_ignore_lid, int, 0600);
 MODULE_PARM_DESC(panel_ignore_lid,
        "Override lid status (0=autodetect, 1=autodetect disabled [default], "
        "-1=force lid closed, -2=force lid open)");
@@ -83,30 +85,25 @@ MODULE_PARM_DESC(enable_fbc,
        "Enable frame buffer compression for power savings "
        "(default: -1 (use per-chip default))");
 
-module_param_named(lvds_downclock, i915.lvds_downclock, int, 0400);
-MODULE_PARM_DESC(lvds_downclock,
-       "Use panel (LVDS/eDP) downclocking for power savings "
-       "(default: false)");
-
-module_param_named(lvds_channel_mode, i915.lvds_channel_mode, int, 0600);
+module_param_named_unsafe(lvds_channel_mode, i915.lvds_channel_mode, int, 0600);
 MODULE_PARM_DESC(lvds_channel_mode,
         "Specify LVDS channel mode "
         "(0=probe BIOS [default], 1=single-channel, 2=dual-channel)");
 
-module_param_named(lvds_use_ssc, i915.panel_use_ssc, int, 0600);
+module_param_named_unsafe(lvds_use_ssc, i915.panel_use_ssc, int, 0600);
 MODULE_PARM_DESC(lvds_use_ssc,
        "Use Spread Spectrum Clock with panels [LVDS/eDP] "
        "(default: auto from VBT)");
 
-module_param_named(vbt_sdvo_panel_type, i915.vbt_sdvo_panel_type, int, 0600);
+module_param_named_unsafe(vbt_sdvo_panel_type, i915.vbt_sdvo_panel_type, int, 0600);
 MODULE_PARM_DESC(vbt_sdvo_panel_type,
        "Override/Ignore selection of SDVO panel mode in the VBT "
        "(-2=ignore, -1=auto [default], index in VBT BIOS table)");
 
-module_param_named(reset, i915.reset, bool, 0600);
+module_param_named_unsafe(reset, i915.reset, bool, 0600);
 MODULE_PARM_DESC(reset, "Attempt GPU resets (default: true)");
 
-module_param_named(enable_hangcheck, i915.enable_hangcheck, bool, 0644);
+module_param_named_unsafe(enable_hangcheck, i915.enable_hangcheck, bool, 0644);
 MODULE_PARM_DESC(enable_hangcheck,
        "Periodically check GPU activity for detecting hangs. "
        "WARNING: Disabling this can cause system wide hangs. "
@@ -117,23 +114,24 @@ MODULE_PARM_DESC(enable_ppgtt,
        "Override PPGTT usage. "
        "(-1=auto [default], 0=disabled, 1=aliasing, 2=full)");
 
-module_param_named(enable_execlists, i915.enable_execlists, int, 0400);
+module_param_named_unsafe(enable_execlists, i915.enable_execlists, int, 0400);
 MODULE_PARM_DESC(enable_execlists,
        "Override execlists usage. "
        "(-1=auto [default], 0=disabled, 1=enabled)");
 
-module_param_named(enable_psr, i915.enable_psr, int, 0600);
+module_param_named_unsafe(enable_psr, i915.enable_psr, int, 0600);
 MODULE_PARM_DESC(enable_psr, "Enable PSR (default: false)");
 
-module_param_named(preliminary_hw_support, i915.preliminary_hw_support, int, 0600);
+module_param_named_unsafe(preliminary_hw_support, i915.preliminary_hw_support, int, 0600);
 MODULE_PARM_DESC(preliminary_hw_support,
        "Enable preliminary hardware support.");
 
-module_param_named(disable_power_well, i915.disable_power_well, int, 0600);
+module_param_named_unsafe(disable_power_well, i915.disable_power_well, int, 0600);
 MODULE_PARM_DESC(disable_power_well,
-       "Disable the power well when possible (default: true)");
+       "Disable display power wells when possible "
+       "(-1=auto [default], 0=power wells always on, 1=power wells disabled when possible)");
 
-module_param_named(enable_ips, i915.enable_ips, int, 0600);
+module_param_named_unsafe(enable_ips, i915.enable_ips, int, 0600);
 MODULE_PARM_DESC(enable_ips, "Enable IPS (default: true)");
 
 module_param_named(fastboot, i915.fastboot, bool, 0600);
@@ -150,7 +148,7 @@ MODULE_PARM_DESC(load_detect_test,
        "Force-enable the VGA load detect code for testing (default:false). "
        "For developers only.");
 
-module_param_named(invert_brightness, i915.invert_brightness, int, 0600);
+module_param_named_unsafe(invert_brightness, i915.invert_brightness, int, 0600);
 MODULE_PARM_DESC(invert_brightness,
        "Invert backlight brightness "
        "(-1 force normal, 0 machine defaults, 1 force inversion), please "
@@ -161,14 +159,14 @@ MODULE_PARM_DESC(invert_brightness,
 module_param_named(disable_display, i915.disable_display, bool, 0600);
 MODULE_PARM_DESC(disable_display, "Disable display (default: false)");
 
-module_param_named(disable_vtd_wa, i915.disable_vtd_wa, bool, 0600);
+module_param_named_unsafe(disable_vtd_wa, i915.disable_vtd_wa, bool, 0600);
 MODULE_PARM_DESC(disable_vtd_wa, "Disable all VT-d workarounds (default: false)");
 
-module_param_named(enable_cmd_parser, i915.enable_cmd_parser, int, 0600);
+module_param_named_unsafe(enable_cmd_parser, i915.enable_cmd_parser, int, 0600);
 MODULE_PARM_DESC(enable_cmd_parser,
                 "Enable command parsing (1=enabled [default], 0=disabled)");
 
-module_param_named(use_mmio_flip, i915.use_mmio_flip, int, 0600);
+module_param_named_unsafe(use_mmio_flip, i915.use_mmio_flip, int, 0600);
 MODULE_PARM_DESC(use_mmio_flip,
                 "use MMIO flips (-1=never, 0=driver discretion [default], 1=always)");
 
@@ -183,4 +181,18 @@ MODULE_PARM_DESC(verbose_state_checks,
 
 module_param_named_unsafe(nuclear_pageflip, i915.nuclear_pageflip, bool, 0600);
 MODULE_PARM_DESC(nuclear_pageflip,
-                "Force atomic modeset functionality; only planes work for now (default: false).");
+                "Force atomic modeset functionality; asynchronous mode is not yet supported. (default: false).");
+
+/* WA to get away with the default setting in VBT for early platforms.Will be removed */
+module_param_named_unsafe(edp_vswing, i915.edp_vswing, int, 0400);
+MODULE_PARM_DESC(edp_vswing,
+                "Ignore/Override vswing pre-emph table selection from VBT "
+                "(0=use value from vbt [default], 1=low power swing(200mV),"
+                "2=default swing(400mV))");
+
+module_param_named_unsafe(enable_guc_submission, i915.enable_guc_submission, bool, 0400);
+MODULE_PARM_DESC(enable_guc_submission, "Enable GuC submission (default:false)");
+
+module_param_named(guc_log_level, i915.guc_log_level, int, 0400);
+MODULE_PARM_DESC(guc_log_level,
+       "GuC firmware logging level (-1:disabled (default), 0-3:enabled)");