We currently have two module parameters that control GuC:
"enable_guc_loading" and "enable_guc_submission". Whenever
we need submission=1, we also need loading=1.We also need
loading=1 when we want to want to verify the HuC, which
is every time we have a HuC (but all platforms with HuC
have a GuC and viceversa).
The above module parameters are being replaced by a single
enable_guc modparam.
v2: Clarifying the commit message (Anusha)
v3: Unify seq_puts messages, Re-factoring code as per review (Michal)
v4: Rebase
v5: Separating message unification into a separate patch
v6: Re-factoring code (Sagar, Michal)
Rebase
v7: Applying review comments (Sagar)
Rebase
v8: Change to NEEDS_GUC_FW (Chris)
Applying review comments (Michal)
Clarifying commit message (Joonas)
v9: Applying review comments (Michal)
v10: Introducing enable_guc modparam
Applying review comments (Michal)
Signed-off-by: Sujaritha Sundaresan <sujaritha.sundare...@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospu...@intel.com>
Cc: Joonas Lahtinen <joonas.lahti...@linux.intel.com>
Cc: Michal Wajdeczko <michal.wajdec...@intel.com>
Cc: Oscar Mateo <oscar.ma...@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kam...@intel.com>
---
drivers/gpu/drm/i915/i915_debugfs.c | 6 +--
drivers/gpu/drm/i915/i915_drv.h | 12 +++--
drivers/gpu/drm/i915/i915_gem_context.c | 4 +-
drivers/gpu/drm/i915/i915_gem_gtt.c | 2 +-
drivers/gpu/drm/i915/i915_irq.c | 4 +-
drivers/gpu/drm/i915/i915_params.c | 11 ++--
drivers/gpu/drm/i915/i915_params.h | 3 +-
drivers/gpu/drm/i915/intel_guc.c | 2 +-
drivers/gpu/drm/i915/intel_guc_log.c | 6 +--
drivers/gpu/drm/i915/intel_uc.c | 96
++++++++++++++++++++++----------------
10 files changed, 77 insertions(+), 69 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
b/drivers/gpu/drm/i915/i915_debugfs.c
index cb3e5aa..c12452d 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2360,7 +2360,7 @@ static int i915_huc_load_status_info(struct seq_file *m,
void *data)
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct drm_printer p;
- if (!HAS_HUC_UCODE(dev_priv)) {
+ if (!HAS_HUC(dev_priv)) {
seq_puts(m, "not supported\n");
return 0;
}
@@ -2381,7 +2381,7 @@ static int i915_guc_load_status_info(struct seq_file *m,
void *data)
struct drm_printer p;
u32 tmp, i;
- if (!HAS_GUC_UCODE(dev_priv)) {
+ if (!HAS_GUC(dev_priv)) {
seq_puts(m, "not supported\n");
return 0;
}
@@ -2466,7 +2466,7 @@ static bool check_guc_submission(struct seq_file *m)
seq_printf(m, "GuC submission %s\n",
HAS_GUC(dev_priv) ?
"not supported" :
- HAS_GUC_SCHED(dev_priv) ?
+ NEEDS_GUC_LOAD(dev_priv) ?
"disabled" :
"failed");
return false;
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 2b76625..c4e1c7e 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -3220,10 +3220,16 @@ static inline unsigned int i915_sg_segment_size(void)
* properties, so we have separate macros to test them.
*/
#define HAS_GUC(dev_priv) ((dev_priv)->info.has_guc)
+#define HAS_HUC(dev_priv) (HAS_GUC(dev_priv))
#define HAS_GUC_CT(dev_priv) ((dev_priv)->info.has_guc_ct)
-#define HAS_GUC_UCODE(dev_priv) (HAS_GUC(dev_priv))
-#define HAS_GUC_SCHED(dev_priv) (HAS_GUC(dev_priv))
-#define HAS_HUC_UCODE(dev_priv) (HAS_GUC(dev_priv))
+#define HAS_GUC_FW(dev_priv) \
+ ((dev_priv)->guc.fw.fetch_status == INTEL_UC_FIRMWARE_SUCCESS)
+#define HAS_HUC_FW(dev_priv) \
+ ((dev_priv)->huc.fw.fetch_status == INTEL_UC_FIRMWARE_SUCCESS)
+
+#define NEEDS_GUC_LOAD(dev_priv) \
+ (HAS_GUC(dev_priv) && HAS_GUC_FW(dev_priv) && \
+ (HAS_HUC_FW(dev_priv) || i915_modparams.enable_guc))
#define HAS_RESOURCE_STREAMER(dev_priv)
((dev_priv)->info.has_resource_streamer)
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c
b/drivers/gpu/drm/i915/i915_gem_context.c
index c1efbaf..f9240dd 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -316,7 +316,7 @@ static u32 default_desc_template(const struct
drm_i915_private *i915,
* present or not in use we still need a small bias as ring wraparound
* at offset 0 sometimes hangs. No idea why.
*/
- if (HAS_GUC(dev_priv) && i915_modparams.enable_guc_loading)
+ if (NEEDS_GUC_LOAD(dev_priv))
ctx->ggtt_offset_bias = GUC_WOPCM_TOP;
else
ctx->ggtt_offset_bias = I915_GTT_PAGE_SIZE;
@@ -409,7 +409,7 @@ struct i915_gem_context *
i915_gem_context_set_closed(ctx); /* not user accessible */
i915_gem_context_clear_bannable(ctx);
i915_gem_context_set_force_single_submission(ctx);
- if (!i915_modparams.enable_guc_submission)
+ if (!i915_modparams.enable_guc)
ctx->ring_size = 512 * PAGE_SIZE; /* Max ring buffer size */
GEM_BUG_ON(i915_gem_context_is_kernel(ctx));
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c
b/drivers/gpu/drm/i915/i915_gem_gtt.c
index f92a39f..9892239 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -3503,7 +3503,7 @@ int i915_ggtt_probe_hw(struct drm_i915_private *dev_priv)
* currently don't have any bits spare to pass in this upper
* restriction!
*/
- if (HAS_GUC(dev_priv) && i915_modparams.enable_guc_loading) {
+ if (NEEDS_GUC_LOAD(dev_priv)) {
ggtt->base.total = min_t(u64, ggtt->base.total, GUC_GGTT_TOP);
ggtt->mappable_end = min(ggtt->mappable_end, ggtt->base.total);
}
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 4fb183a..e3b6fe8 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1400,7 +1400,7 @@ static void snb_gt_irq_handler(struct drm_i915_private
*dev_priv,
if (iir & (GT_RENDER_USER_INTERRUPT << test_shift)) {
notify_ring(engine);
- tasklet |= i915_modparams.enable_guc_submission;
+ tasklet |= i915_modparams.enable_guc;
}
if (tasklet)
@@ -4032,7 +4032,7 @@ void intel_irq_init(struct drm_i915_private *dev_priv)
for (i = 0; i < MAX_L3_SLICES; ++i)
dev_priv->l3_parity.remap_info[i] = NULL;
- if (HAS_GUC_SCHED(dev_priv))
+ if (HAS_GUC(dev_priv))
dev_priv->pm_guc_events = GEN9_GUC_TO_HOST_INT_EVENT;
/* Let's track the enabled rps events */
diff --git a/drivers/gpu/drm/i915/i915_params.c
b/drivers/gpu/drm/i915/i915_params.c
index b4faeb6..6a5ce47 100644
--- a/drivers/gpu/drm/i915/i915_params.c
+++ b/drivers/gpu/drm/i915/i915_params.c
@@ -162,13 +162,10 @@ struct i915_params i915_modparams __read_mostly = {
"(0=use value from vbt [default], 1=low power swing(200mV),"
"2=default swing(400mV))");
-i915_param_named_unsafe(enable_guc_loading, int, 0400,
- "Enable GuC firmware loading "
- "(-1=auto, 0=never [default], 1=if available, 2=required)");
-
-i915_param_named_unsafe(enable_guc_submission, int, 0400,
- "Enable GuC submission "
- "(-1=auto, 0=never [default], 1=if available, 2=required)");
+i915_param_named_unsafe(enable_guc, int, 0400,
+ "Enable GuC submission and loading"
+ "(-1=auto [default], 0=disable GuC loading, 1=enable GuC submision"
+ "2=enable HuC, 3=enable GuC submission and HuC)");
i915_param_named(guc_log_level, int, 0400,
"GuC firmware logging level (-1:disabled (default), 0-3:enabled)");
diff --git a/drivers/gpu/drm/i915/i915_params.h
b/drivers/gpu/drm/i915/i915_params.h
index c729226..7bf4dce 100644
--- a/drivers/gpu/drm/i915/i915_params.h
+++ b/drivers/gpu/drm/i915/i915_params.h
@@ -44,8 +44,7 @@
param(int, disable_power_well, -1) \
param(int, enable_ips, 1) \
param(int, invert_brightness, 0) \
- param(int, enable_guc_loading, 0) \
- param(int, enable_guc_submission, 0) \
+ param(int, enable_guc, -1) \
param(int, guc_log_level, -1) \
param(char *, guc_firmware_path, NULL) \
param(char *, huc_firmware_path, NULL) \
diff --git a/drivers/gpu/drm/i915/intel_guc.c b/drivers/gpu/drm/i915/intel_guc.c
index 823d0c2..629ef5d 100644
--- a/drivers/gpu/drm/i915/intel_guc.c
+++ b/drivers/gpu/drm/i915/intel_guc.c
@@ -128,7 +128,7 @@ void intel_guc_init_params(struct intel_guc *guc)
}
/* If GuC submission is enabled, set up additional parameters here */
- if (i915_modparams.enable_guc_submission) {
+ if (i915_modparams.enable_guc) {
u32 ads = guc_ggtt_offset(guc->ads_vma) >> PAGE_SHIFT;
u32 pgs = guc_ggtt_offset(dev_priv->guc.stage_desc_pool);
u32 ctx_in_16 = GUC_MAX_STAGE_DESCRIPTORS / 16;
diff --git a/drivers/gpu/drm/i915/intel_guc_log.c
b/drivers/gpu/drm/i915/intel_guc_log.c
index 76d3eb1..6d7823b 100644
--- a/drivers/gpu/drm/i915/intel_guc_log.c
+++ b/drivers/gpu/drm/i915/intel_guc_log.c
@@ -505,7 +505,7 @@ static void guc_flush_logs(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
- if (!i915_modparams.enable_guc_submission ||
+ if (!HAS_GUC_FW(dev_priv) ||
(i915_modparams.guc_log_level < 0))
return;
@@ -646,7 +646,7 @@ int i915_guc_log_control(struct drm_i915_private *dev_priv,
u64 control_val)
void i915_guc_log_register(struct drm_i915_private *dev_priv)
{
- if (!i915_modparams.enable_guc_submission ||
+ if (!HAS_GUC_FW(dev_priv) ||
(i915_modparams.guc_log_level < 0))
return;
@@ -657,7 +657,7 @@ void i915_guc_log_register(struct drm_i915_private
*dev_priv)
void i915_guc_log_unregister(struct drm_i915_private *dev_priv)
{
- if (!i915_modparams.enable_guc_submission)
+ if (!HAS_GUC_FW(dev_priv))
return;
mutex_lock(&dev_priv->drm.struct_mutex);
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index 1e2a30a..233f680 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -47,38 +47,45 @@ static int __intel_uc_reset_hw(struct drm_i915_private
*dev_priv)
return ret;
}
+/*
+ * With enable_guc defined as follows:
+ *
+ * -1=auto [default]
+ * 0=disable GuC loading
+ * 1=enable GuC submission
+ * 2=enable HuC
+ * 3=enable GuC submission and HuC
+ */
+
void intel_uc_sanitize_options(struct drm_i915_private *dev_priv)
{
- if (!HAS_GUC(dev_priv)) {
- if (i915_modparams.enable_guc_loading > 0 ||
- i915_modparams.enable_guc_submission > 0)
- DRM_INFO("Ignoring GuC options, no hardware\n");
-
- i915_modparams.enable_guc_loading = 0;
- i915_modparams.enable_guc_submission = 0;
- return;
+ int auto_enable_guc = 0;
+ // note that in the future this can be defined in more granular way
+ // int auto_enable_guc = !HAS_GUC_FW(dev_priv) ? 0 :
+ // IS_GEN9(dev_priv) ? 1 :
+ // IS_GEN10(dev_priv) ? 2:
+ // 3;
+
+ /* Making sure that our auto is well defined */
+ GEM_BUG_ON(auto_enable_guc < 0);
+ GEM_BUG_ON((auto_enable_guc > 0) && !HAS_GUC_FW(dev_priv));
+ GEM_BUG_ON((auto_enable_guc & 2) && !HAS_HUC_FW(dev_priv));
+
+ if (i915_modparams.enable_guc < 0)
+ i915_modparams.enable_guc = auto_enable_guc;
+
+ if (i915_modparams.enable_guc > 0) {
+ if (!HAS_GUC(dev_priv) || !HAS_GUC_FW(dev_priv)) {
+ DRM_INFO("Ignoring option enable_guc=%d - %s\n",
+ i915_modparams.enable_guc,
+ !HAS_GUC(dev_priv) ? "no GuC hardware" :
+ "no GuC firmware");
+ i915_modparams.enable_guc = 0;
+ }
}
- /* A negative value means "use platform default" */
- if (i915_modparams.enable_guc_loading < 0)
- i915_modparams.enable_guc_loading = HAS_GUC_UCODE(dev_priv);
-
- /* Verify firmware version */
- if (i915_modparams.enable_guc_loading) {
- if (HAS_HUC_UCODE(dev_priv))
- intel_huc_select_fw(&dev_priv->huc);
-
- if (intel_guc_fw_select(&dev_priv->guc))
- i915_modparams.enable_guc_loading = 0;
+ if (i915_modparams.enable_guc & 2) {
+ if (!HAS_HUC_FW(dev_priv)) {
+ DRM_INFO("Ignoring option enable_guc=%d - %s\n",
+ i915_modparams.enable_guc, "no HuC firmware");
+ i915_modparams.enable_guc = 0;
+ }
}
-
- /* Can't enable guc submission without guc loaded */
- if (!i915_modparams.enable_guc_loading)
- i915_modparams.enable_guc_submission = 0;
-
- /* A negative value means "use platform default" */
- if (i915_modparams.enable_guc_submission < 0)
- i915_modparams.enable_guc_submission = HAS_GUC_SCHED(dev_priv);
}
void intel_uc_init_early(struct drm_i915_private *dev_priv)
@@ -154,7 +161,7 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
struct intel_guc *guc = &dev_priv->guc;
int ret, attempts;
- if (!i915_modparams.enable_guc_loading)
+ if (!NEEDS_GUC_LOAD(dev_priv))
return 0;
guc_disable_communication(guc);
@@ -163,7 +170,7 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
/* We need to notify the guc whenever we change the GGTT */
i915_ggtt_enable_guc(dev_priv);
- if (i915_modparams.enable_guc_submission) {
+ if (i915_modparams.enable_guc) {
/*
* This is stuff we need to have available at fw load time
* if we are planning to enable submission later
@@ -213,7 +220,7 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
goto err_log_capture;
intel_huc_auth(&dev_priv->huc);
- if (i915_modparams.enable_guc_submission) {
+ if (i915_modparams.enable_guc) {
if (i915_modparams.guc_log_level >= 0)
gen9_enable_guc_interrupts(dev_priv);
@@ -223,7 +230,7 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
}
dev_info(dev_priv->drm.dev, "GuC %s (firmware %s [version %u.%u])\n",
- i915_modparams.enable_guc_submission ? "submission enabled" :
+ i915_modparams.enable_guc ? "submission enabled" :
"loaded",
guc->fw.path,
guc->fw.major_ver_found, guc->fw.minor_ver_found);
@@ -245,27 +252,21 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
err_log_capture:
guc_capture_load_err_log(guc);
err_submission:
- if (i915_modparams.enable_guc_submission)
+ if (i915_modparams.enable_guc)
intel_guc_submission_fini(guc);
err_guc:
i915_ggtt_disable_guc(dev_priv);
- if (i915_modparams.enable_guc_loading > 1 ||
- i915_modparams.enable_guc_submission > 1) {
+ if (i915_modparams.enable_guc > 1) {
DRM_ERROR("GuC init failed. Firmware loading disabled.\n");
ret = -EIO;
+ } else if (i915_modparams.enable_guc == 1) {
+ DRM_NOTE("Falling back from GuC submission to execlist mode\n");
+ ret = 0;
} else {
- DRM_NOTE("GuC init failed. Firmware loading disabled.\n");
ret = 0;
}
- if (i915_modparams.enable_guc_submission) {
- i915_modparams.enable_guc_submission = 0;
- DRM_NOTE("Falling back from GuC submission to execlist mode\n");
- }
-
- i915_modparams.enable_guc_loading = 0;
-
return ret;
}
@@ -275,15 +276,15 @@ void intel_uc_fini_hw(struct drm_i915_private *dev_priv)
guc_free_load_err_log(guc);
- if (!i915_modparams.enable_guc_loading)
+ if (!NEEDS_GUC_LOAD(dev_priv))
return;
- if (i915_modparams.enable_guc_submission)
+ if (i915_modparams.enable_guc)
intel_guc_submission_disable(guc);
guc_disable_communication(guc);
- if (i915_modparams.enable_guc_submission) {
+ if (i915_modparams.enable_guc) {
gen9_disable_guc_interrupts(dev_priv);
intel_guc_submission_fini(guc);
}
--
1.9.1
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