From: Tim Gore <[email protected]> Add a function that is a place for workarounds that are GT related but not required per ring. This function is called on driver load and also after a reset and on resume, so it is safe for workarounds that get clobbered in these situations.
Signed-off-by: Tim Gore <[email protected]> --- drivers/gpu/drm/i915/i915_gem_gtt.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 7377b67..fe960d5 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -2132,6 +2132,16 @@ static void i915_address_space_init(struct i915_address_space *vm, list_add_tail(&vm->global_link, &dev_priv->vm_list); } +void gtt_write_workarounds(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + + /* This function is for gtt related workarounds. This function is + * called on driver load and after a GPU reset, so you can place + * workarounds here even if they get overwritten by GPU reset. + */ +} + int i915_ppgtt_init(struct drm_device *dev, struct i915_hw_ppgtt *ppgtt) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -2148,6 +2158,8 @@ int i915_ppgtt_init(struct drm_device *dev, struct i915_hw_ppgtt *ppgtt) int i915_ppgtt_init_hw(struct drm_device *dev) { + gtt_write_workarounds(dev); + /* In the case of execlists, PPGTT is enabled by the context descriptor * and the PDPs are contained within the context itself. We don't * need to do anything here. */ -- 1.9.1 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
