[Intel-gfx] [PATCH 01/51] drm/i915/guc: Add new GuC interface defines and structures

Matthew Brost
2021-07-16T19:59:36Z

Add new GuC interface defines and structures while maintaining old ones
in parallel.

Cc: John Harrison <john.c.harrison@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
---
.../gpu/drm/i915/gt/uc/abi/guc_actions_abi.h | 14 +++++++
drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h | 41 +++++++++++++++++++
2 files changed, 55 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
index 2d6198e63ebe..57e18babdf4b 100644
--- a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
+++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
@@ -124,10 +124,24 @@ enum intel_guc_action {
INTEL_GUC_ACTION_FORCE_LOG_BUFFER_FLUSH = 0x302,
INTEL_GUC_ACTION_ENTER_S_STATE = 0x501,
INTEL_GUC_ACTION_EXIT_S_STATE = 0x502,
+ INTEL_GUC_ACTION_GLOBAL_SCHED_POLICY_CHANGE = 0x506,
+ INTEL_GUC_ACTION_SCHED_CONTEXT = 0x1000,
+ INTEL_GUC_ACTION_SCHED_CONTEXT_MODE_SET = 0x1001,
+ INTEL_GUC_ACTION_SCHED_CONTEXT_MODE_DONE = 0x1002,
+ INTEL_GUC_ACTION_SCHED_ENGINE_MODE_SET = 0x1003,
+ INTEL_GUC_ACTION_SCHED_ENGINE_MODE_DONE = 0x1004,
+ INTEL_GUC_ACTION_SET_CONTEXT_PRIORITY = 0x1005,
+ INTEL_GUC_ACTION_SET_CONTEXT_EXECUTION_QUANTUM = 0x1006,
+ INTEL_GUC_ACTION_SET_CONTEXT_PREEMPTION_TIMEOUT = 0x1007,
+ INTEL_GUC_ACTION_CONTEXT_RESET_NOTIFICATION = 0x1008,
+ INTEL_GUC_ACTION_ENGINE_FAILURE_NOTIFICATION = 0x1009,
INTEL_GUC_ACTION_SLPC_REQUEST = 0x3003,
INTEL_GUC_ACTION_AUTHENTICATE_HUC = 0x4000,
+ INTEL_GUC_ACTION_REGISTER_CONTEXT = 0x4502,
+ INTEL_GUC_ACTION_DEREGISTER_CONTEXT = 0x4503,
INTEL_GUC_ACTION_REGISTER_COMMAND_TRANSPORT_BUFFER = 0x4505,
INTEL_GUC_ACTION_DEREGISTER_COMMAND_TRANSPORT_BUFFER = 0x4506,
+ INTEL_GUC_ACTION_DEREGISTER_CONTEXT_DONE = 0x4600,
INTEL_GUC_ACTION_LIMIT
};

diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
index 617ec601648d..28245a217a39 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
@@ -17,6 +17,9 @@
#include "abi/guc_communication_ctb_abi.h"
#include "abi/guc_messages_abi.h"

+#define GUC_CONTEXT_DISABLE 0
+#define GUC_CONTEXT_ENABLE 1
+
#define GUC_CLIENT_PRIORITY_KMD_HIGH 0
#define GUC_CLIENT_PRIORITY_HIGH 1
#define GUC_CLIENT_PRIORITY_KMD_NORMAL 2
@@ -26,6 +29,9 @@
#define GUC_MAX_STAGE_DESCRIPTORS 1024
#define GUC_INVALID_STAGE_ID GUC_MAX_STAGE_DESCRIPTORS

+#define GUC_MAX_LRC_DESCRIPTORS 65535
+#define GUC_INVALID_LRC_ID GUC_MAX_LRC_DESCRIPTORS
+
#define GUC_RENDER_ENGINE 0
#define GUC_VIDEO_ENGINE 1
#define GUC_BLITTER_ENGINE 2
@@ -237,6 +243,41 @@ struct guc_stage_desc {
u64 desc_private;
} __packed;

+#define CONTEXT_REGISTRATION_FLAG_KMD BIT(0)
+
+#define CONTEXT_POLICY_DEFAULT_EXECUTION_QUANTUM_US 1000000
+#define CONTEXT_POLICY_DEFAULT_PREEMPTION_TIME_US 500000
+
+/* Preempt to idle on quantum expiry */
+#define CONTEXT_POLICY_FLAG_PREEMPT_TO_IDLE BIT(0)
+
+/*
+ * GuC Context registration descriptor.
+ * FIXME: This is only required to exist during context registration.
+ * The current 1:1 between guc_lrc_desc and LRCs for the lifetime of the LRC
+ * is not required.
+ */
+struct guc_lrc_desc {
+ u32 hw_context_desc;
+ u32 slpm_perf_mode_hint; /* SPLC v1 only */
+ u32 slpm_freq_hint;
+ u32 engine_submit_mask; /* In logical space */
+ u8 engine_class;
+ u8 reserved0[3];
+ u32 priority;
+ u32 process_desc;
+ u32 wq_addr;
+ u32 wq_size;
+ u32 context_flags; /* CONTEXT_REGISTRATION_* */
+ /* Time for one workload to execute. (in micro seconds) */
+ u32 execution_quantum;
+ /* Time to wait for a preemption request to complete before issuing a
+ * reset. (in micro seconds). */
+ u32 preemption_timeout;
+ u32 policy_flags; /* CONTEXT_POLICY_* */
+ u32 reserved1[19];
+} __packed;
+
#define GUC_POWER_UNSPECIFIED 0
#define GUC_POWER_D0 1
#define GUC_POWER_D1 2
--
2.28.0