[PATCH v9 02/21] drm/i915: Update i915.reset to handle engine resets

Michel Thierry
2017-06-15T20:18:30Z

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>
---
drivers/gpu/drm/i915/i915_params.c | 6 +++---
drivers/gpu/drm/i915/i915_params.h | 2 +-
2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
index b6a7e363d076..045cadb77285 100644
--- 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 34148cc8637c..febbfdbd30bd 100644
--- 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); \