drm/i915: Update i915.reset to handle engine resets

In preparation for engine reset work update this parameter to handle more
than one type of reset. Default at the moment is still full gpu reset.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170615201828.23144-3-michel.thierry@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170620095751.13127-4-chris@chris-wilson.co.uk

diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
index b6a7e36..045cadb 100644 (file)
--- a/drivers/gpu/drm/i915/i915_params.c
+++ b/drivers/gpu/drm/i915/i915_params.c
@@ -46,7 +46,7 @@ struct i915_params i915 __read_mostly = {
        .prefault_disable = 0,
        .load_detect_test = 0,
        .force_reset_modeset_test = 0,
-       .reset = true,
+       .reset = 1,
        .error_capture = true,
        .invert_brightness = 0,
        .disable_display = 0,
@@ -115,8 +115,8 @@ 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_unsafe(reset, i915.reset, bool, 0600);
-MODULE_PARM_DESC(reset, "Attempt GPU resets (default: true)");
+module_param_named_unsafe(reset, i915.reset, int, 0600);
+MODULE_PARM_DESC(reset, "Attempt GPU resets (0=disabled, 1=full gpu reset [default], 2=engine reset)");
 
 #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
 module_param_named(error_capture, i915.error_capture, bool, 0600);

diff --git a/drivers/gpu/drm/i915/i915_params.h b/drivers/gpu/drm/i915/i915_params.h
index 34148cc..febbfdb 100644 (file)
--- a/drivers/gpu/drm/i915/i915_params.h
+++ b/drivers/gpu/drm/i915/i915_params.h
@@ -51,6 +51,7 @@
        func(int, use_mmio_flip); \
        func(int, mmio_debug); \
        func(int, edp_vswing); \
+       func(int, reset); \
        func(unsigned int, inject_load_failure); \
        /* leave bools at the end to not create holes */ \
        func(bool, alpha_support); \
@@ -60,7 +61,6 @@
        func(bool, prefault_disable); \
        func(bool, load_detect_test); \
        func(bool, force_reset_modeset_test); \
-       func(bool, reset); \
        func(bool, error_capture); \
        func(bool, disable_display); \
        func(bool, verbose_state_checks); \