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drm/i915/uc: Create intel_uc_init_mmio

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This patch adds new function intel_uc_init_mmio which will initialize
MMIO access related variables prior to uc load/init.

v2: Removed unnecessary export of guc_send_init_regs. Created
intel_uc_init_mmio that currently wraps guc_init_send_regs. (Michal)

v3 (Michal): add kerneldoc (Joonas)

Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171004153327.32608-4-michal.wajdeczko@intel.com
This commit is contained in:
Sagar Arun Kamble 2017-10-04 15:33:24 +00:00 committed by Joonas Lahtinen
parent c23b4f460e
commit 1fc556fa34
3 changed files with 16 additions and 2 deletions
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2
drivers/gpu/drm/i915/i915_drv.c
View file

@ -1007,6 +1007,8 @@ static int i915_driver_init_mmio(struct drm_i915_private *dev_priv)
intel_uncore_init(dev_priv);
intel_uc_init_mmio(dev_priv);
ret = intel_engines_init_mmio(dev_priv);
if (ret)
goto err_uncore;

15
drivers/gpu/drm/i915/intel_uc.c
View file

@ -288,6 +288,19 @@ static void guc_init_send_regs(struct intel_guc *guc)
guc->send_regs.fw_domains = fw_domains;
}
/**
* intel_uc_init_mmio - setup uC MMIO access
*
* @dev_priv: device private
*
* Setup minimal state necessary for MMIO accesses later in the
* initialization sequence.
*/
void intel_uc_init_mmio(struct drm_i915_private *dev_priv)
{
guc_init_send_regs(&dev_priv->guc);
}
static void guc_capture_load_err_log(struct intel_guc *guc)
{
if (!guc->log.vma || i915_modparams.guc_log_level < 0)
@ -309,8 +322,6 @@ static int guc_enable_communication(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
guc_init_send_regs(guc);
if (HAS_GUC_CT(dev_priv))
return intel_guc_enable_ct(guc);

1
drivers/gpu/drm/i915/intel_uc.h
View file

@ -202,6 +202,7 @@ struct intel_huc {
/* intel_uc.c */
void intel_uc_sanitize_options(struct drm_i915_private *dev_priv);
void intel_uc_init_early(struct drm_i915_private *dev_priv);
void intel_uc_init_mmio(struct drm_i915_private *dev_priv);
void intel_uc_init_fw(struct drm_i915_private *dev_priv);
void intel_uc_fini_fw(struct drm_i915_private *dev_priv);
int intel_uc_init_hw(struct drm_i915_private *dev_priv);