Let intel_guc_init_fw() focus on determining and fetching the correct
firmware.
This patch introduces intel_uc_sanitize_options() that is called from
intel_sanitize_options().
Then, if we have GuC, we can call intel_guc_intel_fw() conditionally and
we do not have to do the internal checks.
v2: fix comment, notify when nuking GuC explicitly enabled (M. Wajdeczko)
v3: fix comment again, change the nuke message (M. Wajdeczko)
v4: update title to reflect new function name + rebase
Cc: Michal Winiarski <michal.winiar...@intel.com>
Cc: Michal Wajdeczko <michal.wajdec...@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospu...@intel.com>
Cc: Joonas Lahtinen <joonas.lahti...@linux.intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hi...@intel.com>
---
drivers/gpu/drm/i915/i915_drv.c | 2 ++
drivers/gpu/drm/i915/intel_guc_loader.c | 14 --------------
drivers/gpu/drm/i915/intel_uc.c | 28 +++++++++++++++++++++++++++-
drivers/gpu/drm/i915/intel_uc.h | 1 +
4 files changed, 30 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 56624bf..7964e7f 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -993,6 +993,8 @@ static void intel_sanitize_options(struct drm_i915_private
*dev_priv)
i915.semaphores = intel_sanitize_semaphores(dev_priv, i915.semaphores);
DRM_DEBUG_DRIVER("use GPU semaphores? %s\n", yesno(i915.semaphores));
+
+ intel_uc_sanitize_options(dev_priv);
}
/**
diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c
b/drivers/gpu/drm/i915/intel_guc_loader.c
index 87b7a39..5bd1e4a 100644
--- a/drivers/gpu/drm/i915/intel_guc_loader.c
+++ b/drivers/gpu/drm/i915/intel_guc_loader.c
@@ -601,17 +601,6 @@ void intel_guc_init_fw(struct intel_guc *guc)
struct drm_i915_private *dev_priv = guc_to_i915(guc);
const char *fw_path;
- if (!HAS_GUC(dev_priv)) {
- i915.enable_guc_loading = 0;
- i915.enable_guc_submission = 0;
- } else {
- /* A negative value means "use platform default" */
- if (i915.enable_guc_loading < 0)
- i915.enable_guc_loading = HAS_GUC_UCODE(dev_priv);
- if (i915.enable_guc_submission < 0)
- i915.enable_guc_submission = HAS_GUC_SCHED(dev_priv);
- }
-
if (!HAS_GUC_UCODE(dev_priv)) {
fw_path = NULL;
} else if (IS_SKYLAKE(dev_priv)) {
@@ -634,9 +623,6 @@ void intel_guc_init_fw(struct intel_guc *guc)
guc->fw.fetch_status = INTEL_UC_FIRMWARE_NONE;
guc->fw.load_status = INTEL_UC_FIRMWARE_NONE;
- /* Early (and silent) return if GuC loading is disabled */
- if (!i915.enable_guc_loading)
- return;
if (fw_path == NULL)
return;
if (*fw_path == '\0')
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index 5c204e6..8f5aa58 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -26,6 +26,27 @@
#include "intel_uc.h"
#include <linux/firmware.h>
+void intel_uc_sanitize_options(struct drm_i915_private *dev_priv)
+{
+ if (!HAS_GUC(dev_priv)) {
+ if (i915.enable_guc_loading > 0)
+ DRM_INFO("Ignoring GuC options, no hardware");
+
+ i915.enable_guc_loading = 0;
+ i915.enable_guc_submission = 0;
+ } else {
+ /* A negative value means "use platform default" */
+ if (i915.enable_guc_loading < 0)
+ i915.enable_guc_loading = HAS_GUC_UCODE(dev_priv);
+ if (i915.enable_guc_submission < 0)
+ i915.enable_guc_submission = HAS_GUC_SCHED(dev_priv);
+
+ /* can't enable guc submission without guc loaded */
+ if (!i915.enable_guc_loading)
+ i915.enable_guc_submission = 0;
+ }
+}
+
void intel_uc_init_early(struct drm_i915_private *dev_priv)
{
mutex_init(&dev_priv->guc.send_mutex);
@@ -33,7 +54,12 @@ void intel_uc_init_early(struct drm_i915_private *dev_priv)
void intel_uc_init_fw(struct drm_i915_private *dev_priv)
{
- intel_huc_init_fw(&dev_priv->huc);
+ if (!i915.enable_guc_loading)
+ return;
+
+ if (HAS_HUC_UCODE(dev_priv))
+ intel_huc_init_fw(&dev_priv->huc);
+
intel_guc_init_fw(&dev_priv->guc);
}
diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h
index 221f169..f8d8816 100644
--- a/drivers/gpu/drm/i915/intel_uc.h
+++ b/drivers/gpu/drm/i915/intel_uc.h
@@ -184,6 +184,7 @@ 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_fw(struct drm_i915_private *dev_priv);
int intel_guc_send(struct intel_guc *guc, const u32 *action, u32 len);
--
2.9.3
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