On Wed, 04 Oct 2017 00:56:18 +0200, Sujaritha Sundaresan
<sujaritha.sundaresan@xxxxxxxxx> wrote:
We currently have two module parameters that control GuC:
"enable_guc_loading" and "enable_guc_submission".
Whenever we need i915_modparams.enable_guc_submission=1, we also need
enable_guc_loading=1.
We also need enable_guc_loading=1 when we want to verify the HuC,
which is every time we have a HuC (but all platforms with HuC have a GuC
and viceversa).
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
Cc: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
Cc: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx>
Cc: Oscar Mateo <oscar.mateo@xxxxxxxxx>
Cc: Sagar Arun Kamble <sagar.a.kamble@xxxxxxxxx>
Signed-off-by: Sujaritha Sundaresan <sujaritha.sundaresan@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_debugfs.c | 11 +++++--
drivers/gpu/drm/i915/i915_drv.h | 9 ++++--
drivers/gpu/drm/i915/i915_gem_context.c | 2 +-
drivers/gpu/drm/i915/i915_gem_gtt.c | 2 +-
drivers/gpu/drm/i915/i915_irq.c | 2 +-
drivers/gpu/drm/i915/i915_params.c | 5 ----
drivers/gpu/drm/i915/i915_params.h | 1 -
drivers/gpu/drm/i915/intel_guc_loader.c | 7 +++--
drivers/gpu/drm/i915/intel_huc.c | 4 ++-
drivers/gpu/drm/i915/intel_uc.c | 51
+++++++++++++++++----------------
drivers/gpu/drm/i915/intel_uc.h | 2 +-
drivers/gpu/drm/i915/intel_uncore.c | 4 +--
12 files changed, 52 insertions(+), 48 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
b/drivers/gpu/drm/i915/i915_debugfs.c
index 53e40dd..4fde4b2 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2336,8 +2336,10 @@ 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 intel_uc_fw *huc_fw = &dev_priv->huc.fw;
- if (!HAS_HUC_UCODE(dev_priv))
+ if (!HAS_GUC(dev_priv)){
+ seq_puts(m, "not supported\n");
This line should be added in patch 1/5
return 0;
+ }
seq_puts(m, "HuC firmware status:\n");
seq_printf(m, "\tpath: %s\n", huc_fw->path);
@@ -2369,8 +2371,11 @@ static int i915_guc_load_status_info(struct
seq_file *m, void *data)
struct intel_uc_fw *guc_fw = &dev_priv->guc.fw;
u32 tmp, i;
- if (!HAS_GUC_UCODE(dev_priv))
+ if (!HAS_GUC(dev_priv)){
+ seq_puts(m, "not supported\n");
Same here.
return 0;
+
+ }
seq_printf(m, "GuC firmware status:\n");
seq_printf(m, "\tpath: %s\n",
@@ -2465,7 +2470,7 @@ static bool check_guc_submission(struct seq_file
*m)
if (!guc->execbuf_client) {
seq_printf(m, "GuC submission %s\n",
- HAS_GUC_SCHED(dev_priv) ?
+ HAS_GUC(dev_priv) ?
"disabled" :
"not supported");
return false;
diff --git a/drivers/gpu/drm/i915/i915_drv.h
b/drivers/gpu/drm/i915/i915_drv.h
index 61a4be9..6479b72 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -3141,9 +3141,12 @@ static inline unsigned int
i915_sg_segment_size(void)
*/
#define HAS_GUC(dev_priv) ((dev_priv)->info.has_guc)
#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_UCODE(dev_priv) ((dev_priv)->guc.fw.path != NULL)
+#define HAS_HUC_UCODE(dev_priv) ((dev_priv)->guc.fw.path != NULL)
^^^
huc ?
+
+#define NEEDS_GUC_LOADING(dev_priv) \
+ (HAS_GUC(dev_priv) && \
+ (i915_modparams.enable_guc_submission || HAS_HUC_UCODE(dev_priv)))
#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 921ee36..0890341 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -314,7 +314,7 @@ 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_LOADING(dev_priv))
ctx->ggtt_offset_bias = GUC_WOPCM_TOP;
else
ctx->ggtt_offset_bias = I915_GTT_PAGE_SIZE;
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c
b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 64d7852..a32935a 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -3292,7 +3292,7 @@ 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_LOADING(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 6a07ef3..60cdf0d 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -3956,7 +3956,7 @@ 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 (NEEDS_GUC_LOADING(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 ec65341..30344e1 100644
--- a/drivers/gpu/drm/i915/i915_params.c
+++ b/drivers/gpu/drm/i915/i915_params.c
@@ -63,7 +63,6 @@ struct i915_params i915_modparams __read_mostly = {
.verbose_state_checks = 1,
.nuclear_pageflip = 0,
.edp_vswing = 0,
- .enable_guc_loading = 0,
Needs rebase
.enable_guc_submission = 0,
.guc_log_level = -1,
.guc_firmware_path = NULL,
@@ -201,10 +200,6 @@ 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)");
diff --git a/drivers/gpu/drm/i915/i915_params.h
b/drivers/gpu/drm/i915/i915_params.h
index a2cbb47..b26df06 100644
--- a/drivers/gpu/drm/i915/i915_params.h
+++ b/drivers/gpu/drm/i915/i915_params.h
@@ -44,7 +44,6 @@
func(int, disable_power_well); \
func(int, enable_ips); \
func(int, invert_brightness); \
- func(int, enable_guc_loading); \
Needs rebase
func(int, enable_guc_submission); \
func(int, guc_log_level); \
func(char *, guc_firmware_path); \
diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c
b/drivers/gpu/drm/i915/intel_guc_loader.c
index c9e25be..4210680 100644
--- a/drivers/gpu/drm/i915/intel_guc_loader.c
+++ b/drivers/gpu/drm/i915/intel_guc_loader.c
@@ -382,7 +382,7 @@ int intel_guc_init_hw(struct intel_guc *guc)
*
* Return: zero when we know firmware, non-zero in other case
*/
-int intel_guc_select_fw(struct intel_guc *guc)
+void intel_guc_select_fw(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
@@ -412,8 +412,9 @@ int intel_guc_select_fw(struct intel_guc *guc)
guc->fw.major_ver_wanted = GLK_FW_MAJOR;
guc->fw.minor_ver_wanted = GLK_FW_MINOR;
} else {
- DRM_ERROR("No GuC firmware known for platform with GuC!\n");
- return -ENOENT;
+ if(HAS_GUC(dev_priv))
+ DRM_ERROR("NO GUC FW konown for a platform with GuC!\n");
+ return;
}
return 0;
diff --git a/drivers/gpu/drm/i915/intel_huc.c
b/drivers/gpu/drm/i915/intel_huc.c
index 6e1779b..ee9e786 100644
--- a/drivers/gpu/drm/i915/intel_huc.c
+++ b/drivers/gpu/drm/i915/intel_huc.c
@@ -176,7 +176,9 @@ void intel_huc_select_fw(struct intel_huc *huc)
huc->fw.major_ver_wanted = GLK_HUC_FW_MAJOR;
huc->fw.minor_ver_wanted = GLK_HUC_FW_MINOR;
} else {
- DRM_ERROR("No HuC firmware known for platform with HuC!\n");
+ /* For now, everything with a GuC also has a HuC */
Hmm, maybe above shall be added to
#define HAS_HUC(dev_priv) HAS_GUC(dev_priv)
+ if (HAS_GUC(dev_priv))
And then use here HAS_HUC() ?
+ DRM_ERROR("No HuC FW known for a platform with HuC!\n");
return;
}
}
diff --git a/drivers/gpu/drm/i915/intel_uc.c
b/drivers/gpu/drm/i915/intel_uc.c
index 9018540..4290b35 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -63,35 +63,31 @@ static int __intel_uc_reset_hw(struct
drm_i915_private *dev_priv)
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)
+ if (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;
}
- /* 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_select_fw(&dev_priv->guc))
- i915_modparams.enable_guc_loading = 0;
+ if (!HAS_GUC(dev_priv)){
Unreachable code
+ if (i915_modparams.enable_guc_submission > 0){
+ DRM_INFO("Ignoring GuC submission enable enable, no FW\n");
+ i915_modparams.enable_guc_submission = 0;
+ return;
+ }
}
/* Can't enable guc submission without guc loaded */
- if (!i915_modparams.enable_guc_loading)
+ if (!i915_modparams.enable_guc_submission < 0)
i915_modparams.enable_guc_submission = 0;
+ return;
/* A negative value means "use platform default" */
if (i915_modparams.enable_guc_submission < 0)
- i915_modparams.enable_guc_submission = HAS_GUC_SCHED(dev_priv);
+ i915_modparams.enable_guc_submission = 1;
}
static void gen8_guc_raise_irq(struct intel_guc *guc)
@@ -106,6 +102,8 @@ void intel_uc_init_early(struct drm_i915_private
*dev_priv)
struct intel_guc *guc = &dev_priv->guc;
intel_guc_ct_init_early(&guc->ct);
Maybe following lines shall be guarded with HAS_GUC/HAS_HUC
like you did in fini_fw ?
+ intel_guc_select_fw(&dev_priv->guc);
+ intel_huc_select_fw(&dev_priv->huc);
Btw, note that we already has "guc" local variable ...
mutex_init(&guc->send_mutex);
guc->send = intel_guc_send_nop;
@@ -258,6 +256,8 @@ void intel_uc_init_fw(struct drm_i915_private
*dev_priv)
void intel_uc_fini_fw(struct drm_i915_private *dev_priv)
{
+ if (!HAS_GUC(dev_priv))
+ return;
__intel_uc_fw_fini(&dev_priv->guc.fw);
__intel_uc_fw_fini(&dev_priv->huc.fw);
}
@@ -333,7 +333,7 @@ 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_LOADING(dev_priv))
return 0;
guc_disable_communication(guc);
@@ -423,19 +423,20 @@ int intel_uc_init_hw(struct drm_i915_private
*dev_priv)
i915_ggtt_disable_guc(dev_priv);
DRM_ERROR("GuC init failed\n");
- if (i915_modparams.enable_guc_loading > 1 ||
- i915_modparams.enable_guc_submission > 1)
+ if (i915_modparams.enable_guc_submission > 1){
+ DRM_NOTE("GuC is required, so marking the GPU as wedged\n");
ret = -EIO;
- else
- 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");
+ else if (i915_modparams.enable_guc_submission == 1){
+ DRM_NOTE("Falling back from GuC submission to execlist mode\n");
+ i915_modparams.enable_guc_submission = 0;
+ ret = 0;
}
- i915_modparams.enable_guc_loading = 0;
- DRM_NOTE("GuC firmware loading disabled\n");
+ else
+ ret = 0;
return ret;
}
@@ -444,7 +445,7 @@ void intel_uc_fini_hw(struct drm_i915_private
*dev_priv)
{
guc_free_load_err_log(&dev_priv->guc);
- if (!i915_modparams.enable_guc_loading)
+ if (!NEEDS_GUC_LOADING(dev_priv))
return;
if (i915_modparams.enable_guc_submission)
diff --git a/drivers/gpu/drm/i915/intel_uc.h
b/drivers/gpu/drm/i915/intel_uc.h
index 7703c9a..58d787e 100644
--- a/drivers/gpu/drm/i915/intel_uc.h
+++ b/drivers/gpu/drm/i915/intel_uc.h
@@ -223,7 +223,7 @@ static inline void intel_guc_notify(struct intel_guc
*guc)
}
/* intel_guc_loader.c */
-int intel_guc_select_fw(struct intel_guc *guc);
+void intel_guc_select_fw(struct intel_guc *guc);
int intel_guc_init_hw(struct intel_guc *guc);
int intel_guc_suspend(struct drm_i915_private *dev_priv);
int intel_guc_resume(struct drm_i915_private *dev_priv);
diff --git a/drivers/gpu/drm/i915/intel_uncore.c
b/drivers/gpu/drm/i915/intel_uncore.c
index b3c3f94..0164f41 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -1786,12 +1786,10 @@ int intel_guc_reset(struct drm_i915_private
*dev_priv)
{
int ret;
- if (!HAS_GUC(dev_priv))
- return -EINVAL;
+ GEM_BUG_ON(!HAS_GUC(dev_priv));
intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
ret = gen6_hw_domain_reset(dev_priv, GEN9_GRDOM_GUC);
- intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
return ret;
}
btw, beware of https://patchwork.freedesktop.org/series/31340/
Michal
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