Commit d7965152 authored by Robert Bragg's avatar Robert Bragg Committed by Daniel Vetter
Browse files

drm/i915: Enable i915 perf stream for Haswell OA unit 



Gen graphics hardware can be set up to periodically write snapshots of
performance counters into a circular buffer via its Observation
Architecture and this patch exposes that capability to userspace via the
i915 perf interface.

v2:
   Make sure to initialize ->specific_ctx_id when opening, without
   relying on _pin_notify hook, in case ctx already pinned.
v3:
   Revert back to pinning ctx upfront when opening stream, removing
   need to hook in to pinning and to update OACONTROL on the fly.

Signed-off-by: default avatarRobert Bragg <robert@sixbynine.org>
Signed-off-by: default avatarZhenyu Wang <zhenyuw@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: default avatarMatthew Auld <matthew.auld@intel.com>
Reviewed-by: default avatarSourab Gupta <sourab.gupta@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161107194957.3385-7-robert@sixbynine.org
parent 8a3003dd

drivers/gpu/drm/i915/i915_drv.h

+56 −10
Original line number Diff line number Diff line
@@ -1797,6 +1797,11 @@ struct intel_wm_config { 
	bool sprites_scaled;

};



struct i915_oa_format {

	u32 format;

	int size;

};



struct i915_oa_reg {

	i915_reg_t addr;

	u32 value;
@@ -1817,11 +1822,6 @@ struct i915_perf_stream_ops { 
	 */

	void (*disable)(struct i915_perf_stream *stream);



	/* Return: true if any i915 perf records are ready to read()

	 * for this stream.

	 */

	bool (*can_read)(struct i915_perf_stream *stream);



	/* Call poll_wait, passing a wait queue that will be woken

	 * once there is something ready to read() for the stream

	 */
@@ -1831,9 +1831,7 @@ struct i915_perf_stream_ops { 


	/* For handling a blocking read, wait until there is something

	 * to ready to read() for the stream. E.g. wait on the same

	 * wait queue that would be passed to poll_wait() until

	 * ->can_read() returns true (if its safe to call ->can_read()

	 * without the i915 perf lock held).

	 * wait queue that would be passed to poll_wait().

	 */

	int (*wait_unlocked)(struct i915_perf_stream *stream);
@@ -1873,11 +1871,28 @@ struct i915_perf_stream { 
	struct list_head link;



	u32 sample_flags;

	int sample_size;



	struct i915_gem_context *ctx;

	bool enabled;



	struct i915_perf_stream_ops *ops;

	const struct i915_perf_stream_ops *ops;

};



struct i915_oa_ops {

	void (*init_oa_buffer)(struct drm_i915_private *dev_priv);

	int (*enable_metric_set)(struct drm_i915_private *dev_priv);

	void (*disable_metric_set)(struct drm_i915_private *dev_priv);

	void (*oa_enable)(struct drm_i915_private *dev_priv);

	void (*oa_disable)(struct drm_i915_private *dev_priv);

	void (*update_oacontrol)(struct drm_i915_private *dev_priv);

	void (*update_hw_ctx_id_locked)(struct drm_i915_private *dev_priv,

					u32 ctx_id);

	int (*read)(struct i915_perf_stream *stream,

		    char __user *buf,

		    size_t count,

		    size_t *offset);

	bool (*oa_buffer_is_empty)(struct drm_i915_private *dev_priv);

};



struct drm_i915_private {
@@ -2177,16 +2192,47 @@ struct drm_i915_private { 


	struct {

		bool initialized;



		struct mutex lock;

		struct list_head streams;



		spinlock_t hook_lock;



		struct {

			u32 metrics_set;

			struct i915_perf_stream *exclusive_stream;



			u32 specific_ctx_id;

			struct i915_vma *pinned_rcs_vma;



			struct hrtimer poll_check_timer;

			wait_queue_head_t poll_wq;

			bool pollin;



			bool periodic;

			int period_exponent;

			int timestamp_frequency;



			int tail_margin;



			int metrics_set;



			const struct i915_oa_reg *mux_regs;

			int mux_regs_len;

			const struct i915_oa_reg *b_counter_regs;

			int b_counter_regs_len;



			struct {

				struct i915_vma *vma;

				u8 *vaddr;

				int format;

				int format_size;

			} oa_buffer;



			u32 gen7_latched_oastatus1;



			struct i915_oa_ops ops;

			const struct i915_oa_format *oa_formats;

			int n_builtin_sets;

		} oa;

	} perf;

drivers/gpu/drm/i915/i915_perf.c

+1019 −17

File changed.

Preview size limit exceeded, changes collapsed.

drivers/gpu/drm/i915/i915_reg.h

+338 −0
Original line number Diff line number Diff line
@@ -616,6 +616,343 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg) 
#define HSW_CS_GPR_UDW(n)               _MMIO(0x2600 + (n) * 8 + 4)



#define GEN7_OACONTROL _MMIO(0x2360)

#define  GEN7_OACONTROL_CTX_MASK	    0xFFFFF000

#define  GEN7_OACONTROL_TIMER_PERIOD_MASK   0x3F

#define  GEN7_OACONTROL_TIMER_PERIOD_SHIFT  6

#define  GEN7_OACONTROL_TIMER_ENABLE	    (1<<5)

#define  GEN7_OACONTROL_FORMAT_A13	    (0<<2)

#define  GEN7_OACONTROL_FORMAT_A29	    (1<<2)

#define  GEN7_OACONTROL_FORMAT_A13_B8_C8    (2<<2)

#define  GEN7_OACONTROL_FORMAT_A29_B8_C8    (3<<2)

#define  GEN7_OACONTROL_FORMAT_B4_C8	    (4<<2)

#define  GEN7_OACONTROL_FORMAT_A45_B8_C8    (5<<2)

#define  GEN7_OACONTROL_FORMAT_B4_C8_A16    (6<<2)

#define  GEN7_OACONTROL_FORMAT_C4_B8	    (7<<2)

#define  GEN7_OACONTROL_FORMAT_SHIFT	    2

#define  GEN7_OACONTROL_PER_CTX_ENABLE	    (1<<1)

#define  GEN7_OACONTROL_ENABLE		    (1<<0)



#define GEN8_OACTXID _MMIO(0x2364)



#define GEN8_OACONTROL _MMIO(0x2B00)

#define  GEN8_OA_REPORT_FORMAT_A12	    (0<<2)

#define  GEN8_OA_REPORT_FORMAT_A12_B8_C8    (2<<2)

#define  GEN8_OA_REPORT_FORMAT_A36_B8_C8    (5<<2)

#define  GEN8_OA_REPORT_FORMAT_C4_B8	    (7<<2)

#define  GEN8_OA_REPORT_FORMAT_SHIFT	    2

#define  GEN8_OA_SPECIFIC_CONTEXT_ENABLE    (1<<1)

#define  GEN8_OA_COUNTER_ENABLE             (1<<0)



#define GEN8_OACTXCONTROL _MMIO(0x2360)

#define  GEN8_OA_TIMER_PERIOD_MASK	    0x3F

#define  GEN8_OA_TIMER_PERIOD_SHIFT	    2

#define  GEN8_OA_TIMER_ENABLE		    (1<<1)

#define  GEN8_OA_COUNTER_RESUME		    (1<<0)



#define GEN7_OABUFFER _MMIO(0x23B0) /* R/W */

#define  GEN7_OABUFFER_OVERRUN_DISABLE	    (1<<3)

#define  GEN7_OABUFFER_EDGE_TRIGGER	    (1<<2)

#define  GEN7_OABUFFER_STOP_RESUME_ENABLE   (1<<1)

#define  GEN7_OABUFFER_RESUME		    (1<<0)



#define GEN8_OABUFFER _MMIO(0x2b14)



#define GEN7_OASTATUS1 _MMIO(0x2364)

#define  GEN7_OASTATUS1_TAIL_MASK	    0xffffffc0

#define  GEN7_OASTATUS1_COUNTER_OVERFLOW    (1<<2)

#define  GEN7_OASTATUS1_OABUFFER_OVERFLOW   (1<<1)

#define  GEN7_OASTATUS1_REPORT_LOST	    (1<<0)



#define GEN7_OASTATUS2 _MMIO(0x2368)

#define GEN7_OASTATUS2_HEAD_MASK    0xffffffc0



#define GEN8_OASTATUS _MMIO(0x2b08)

#define  GEN8_OASTATUS_OVERRUN_STATUS	    (1<<3)

#define  GEN8_OASTATUS_COUNTER_OVERFLOW     (1<<2)

#define  GEN8_OASTATUS_OABUFFER_OVERFLOW    (1<<1)

#define  GEN8_OASTATUS_REPORT_LOST	    (1<<0)



#define GEN8_OAHEADPTR _MMIO(0x2B0C)

#define GEN8_OATAILPTR _MMIO(0x2B10)



#define OABUFFER_SIZE_128K  (0<<3)

#define OABUFFER_SIZE_256K  (1<<3)

#define OABUFFER_SIZE_512K  (2<<3)

#define OABUFFER_SIZE_1M    (3<<3)

#define OABUFFER_SIZE_2M    (4<<3)

#define OABUFFER_SIZE_4M    (5<<3)

#define OABUFFER_SIZE_8M    (6<<3)

#define OABUFFER_SIZE_16M   (7<<3)



#define OA_MEM_SELECT_GGTT  (1<<0)



#define EU_PERF_CNTL0	    _MMIO(0xe458)



#define GDT_CHICKEN_BITS    _MMIO(0x9840)

#define GT_NOA_ENABLE	    0x00000080



/*

 * OA Boolean state

 */



#define OAREPORTTRIG1 _MMIO(0x2740)

#define OAREPORTTRIG1_THRESHOLD_MASK 0xffff

#define OAREPORTTRIG1_EDGE_LEVEL_TRIGER_SELECT_MASK 0xffff0000 /* 0=level */



#define OAREPORTTRIG2 _MMIO(0x2744)

#define OAREPORTTRIG2_INVERT_A_0  (1<<0)

#define OAREPORTTRIG2_INVERT_A_1  (1<<1)

#define OAREPORTTRIG2_INVERT_A_2  (1<<2)

#define OAREPORTTRIG2_INVERT_A_3  (1<<3)

#define OAREPORTTRIG2_INVERT_A_4  (1<<4)

#define OAREPORTTRIG2_INVERT_A_5  (1<<5)

#define OAREPORTTRIG2_INVERT_A_6  (1<<6)

#define OAREPORTTRIG2_INVERT_A_7  (1<<7)

#define OAREPORTTRIG2_INVERT_A_8  (1<<8)

#define OAREPORTTRIG2_INVERT_A_9  (1<<9)

#define OAREPORTTRIG2_INVERT_A_10 (1<<10)

#define OAREPORTTRIG2_INVERT_A_11 (1<<11)

#define OAREPORTTRIG2_INVERT_A_12 (1<<12)

#define OAREPORTTRIG2_INVERT_A_13 (1<<13)

#define OAREPORTTRIG2_INVERT_A_14 (1<<14)

#define OAREPORTTRIG2_INVERT_A_15 (1<<15)

#define OAREPORTTRIG2_INVERT_B_0  (1<<16)

#define OAREPORTTRIG2_INVERT_B_1  (1<<17)

#define OAREPORTTRIG2_INVERT_B_2  (1<<18)

#define OAREPORTTRIG2_INVERT_B_3  (1<<19)

#define OAREPORTTRIG2_INVERT_C_0  (1<<20)

#define OAREPORTTRIG2_INVERT_C_1  (1<<21)

#define OAREPORTTRIG2_INVERT_D_0  (1<<22)

#define OAREPORTTRIG2_THRESHOLD_ENABLE	    (1<<23)

#define OAREPORTTRIG2_REPORT_TRIGGER_ENABLE (1<<31)



#define OAREPORTTRIG3 _MMIO(0x2748)

#define OAREPORTTRIG3_NOA_SELECT_MASK	    0xf

#define OAREPORTTRIG3_NOA_SELECT_8_SHIFT    0

#define OAREPORTTRIG3_NOA_SELECT_9_SHIFT    4

#define OAREPORTTRIG3_NOA_SELECT_10_SHIFT   8

#define OAREPORTTRIG3_NOA_SELECT_11_SHIFT   12

#define OAREPORTTRIG3_NOA_SELECT_12_SHIFT   16

#define OAREPORTTRIG3_NOA_SELECT_13_SHIFT   20

#define OAREPORTTRIG3_NOA_SELECT_14_SHIFT   24

#define OAREPORTTRIG3_NOA_SELECT_15_SHIFT   28



#define OAREPORTTRIG4 _MMIO(0x274c)

#define OAREPORTTRIG4_NOA_SELECT_MASK	    0xf

#define OAREPORTTRIG4_NOA_SELECT_0_SHIFT    0

#define OAREPORTTRIG4_NOA_SELECT_1_SHIFT    4

#define OAREPORTTRIG4_NOA_SELECT_2_SHIFT    8

#define OAREPORTTRIG4_NOA_SELECT_3_SHIFT    12

#define OAREPORTTRIG4_NOA_SELECT_4_SHIFT    16

#define OAREPORTTRIG4_NOA_SELECT_5_SHIFT    20

#define OAREPORTTRIG4_NOA_SELECT_6_SHIFT    24

#define OAREPORTTRIG4_NOA_SELECT_7_SHIFT    28



#define OAREPORTTRIG5 _MMIO(0x2750)

#define OAREPORTTRIG5_THRESHOLD_MASK 0xffff

#define OAREPORTTRIG5_EDGE_LEVEL_TRIGER_SELECT_MASK 0xffff0000 /* 0=level */



#define OAREPORTTRIG6 _MMIO(0x2754)

#define OAREPORTTRIG6_INVERT_A_0  (1<<0)

#define OAREPORTTRIG6_INVERT_A_1  (1<<1)

#define OAREPORTTRIG6_INVERT_A_2  (1<<2)

#define OAREPORTTRIG6_INVERT_A_3  (1<<3)

#define OAREPORTTRIG6_INVERT_A_4  (1<<4)

#define OAREPORTTRIG6_INVERT_A_5  (1<<5)

#define OAREPORTTRIG6_INVERT_A_6  (1<<6)

#define OAREPORTTRIG6_INVERT_A_7  (1<<7)

#define OAREPORTTRIG6_INVERT_A_8  (1<<8)

#define OAREPORTTRIG6_INVERT_A_9  (1<<9)

#define OAREPORTTRIG6_INVERT_A_10 (1<<10)

#define OAREPORTTRIG6_INVERT_A_11 (1<<11)

#define OAREPORTTRIG6_INVERT_A_12 (1<<12)

#define OAREPORTTRIG6_INVERT_A_13 (1<<13)

#define OAREPORTTRIG6_INVERT_A_14 (1<<14)

#define OAREPORTTRIG6_INVERT_A_15 (1<<15)

#define OAREPORTTRIG6_INVERT_B_0  (1<<16)

#define OAREPORTTRIG6_INVERT_B_1  (1<<17)

#define OAREPORTTRIG6_INVERT_B_2  (1<<18)

#define OAREPORTTRIG6_INVERT_B_3  (1<<19)

#define OAREPORTTRIG6_INVERT_C_0  (1<<20)

#define OAREPORTTRIG6_INVERT_C_1  (1<<21)

#define OAREPORTTRIG6_INVERT_D_0  (1<<22)

#define OAREPORTTRIG6_THRESHOLD_ENABLE	    (1<<23)

#define OAREPORTTRIG6_REPORT_TRIGGER_ENABLE (1<<31)



#define OAREPORTTRIG7 _MMIO(0x2758)

#define OAREPORTTRIG7_NOA_SELECT_MASK	    0xf

#define OAREPORTTRIG7_NOA_SELECT_8_SHIFT    0

#define OAREPORTTRIG7_NOA_SELECT_9_SHIFT    4

#define OAREPORTTRIG7_NOA_SELECT_10_SHIFT   8

#define OAREPORTTRIG7_NOA_SELECT_11_SHIFT   12

#define OAREPORTTRIG7_NOA_SELECT_12_SHIFT   16

#define OAREPORTTRIG7_NOA_SELECT_13_SHIFT   20

#define OAREPORTTRIG7_NOA_SELECT_14_SHIFT   24

#define OAREPORTTRIG7_NOA_SELECT_15_SHIFT   28



#define OAREPORTTRIG8 _MMIO(0x275c)

#define OAREPORTTRIG8_NOA_SELECT_MASK	    0xf

#define OAREPORTTRIG8_NOA_SELECT_0_SHIFT    0

#define OAREPORTTRIG8_NOA_SELECT_1_SHIFT    4

#define OAREPORTTRIG8_NOA_SELECT_2_SHIFT    8

#define OAREPORTTRIG8_NOA_SELECT_3_SHIFT    12

#define OAREPORTTRIG8_NOA_SELECT_4_SHIFT    16

#define OAREPORTTRIG8_NOA_SELECT_5_SHIFT    20

#define OAREPORTTRIG8_NOA_SELECT_6_SHIFT    24

#define OAREPORTTRIG8_NOA_SELECT_7_SHIFT    28



#define OASTARTTRIG1 _MMIO(0x2710)

#define OASTARTTRIG1_THRESHOLD_COUNT_MASK_MBZ 0xffff0000

#define OASTARTTRIG1_THRESHOLD_MASK	      0xffff



#define OASTARTTRIG2 _MMIO(0x2714)

#define OASTARTTRIG2_INVERT_A_0 (1<<0)

#define OASTARTTRIG2_INVERT_A_1 (1<<1)

#define OASTARTTRIG2_INVERT_A_2 (1<<2)

#define OASTARTTRIG2_INVERT_A_3 (1<<3)

#define OASTARTTRIG2_INVERT_A_4 (1<<4)

#define OASTARTTRIG2_INVERT_A_5 (1<<5)

#define OASTARTTRIG2_INVERT_A_6 (1<<6)

#define OASTARTTRIG2_INVERT_A_7 (1<<7)

#define OASTARTTRIG2_INVERT_A_8 (1<<8)

#define OASTARTTRIG2_INVERT_A_9 (1<<9)

#define OASTARTTRIG2_INVERT_A_10 (1<<10)

#define OASTARTTRIG2_INVERT_A_11 (1<<11)

#define OASTARTTRIG2_INVERT_A_12 (1<<12)

#define OASTARTTRIG2_INVERT_A_13 (1<<13)

#define OASTARTTRIG2_INVERT_A_14 (1<<14)

#define OASTARTTRIG2_INVERT_A_15 (1<<15)

#define OASTARTTRIG2_INVERT_B_0 (1<<16)

#define OASTARTTRIG2_INVERT_B_1 (1<<17)

#define OASTARTTRIG2_INVERT_B_2 (1<<18)

#define OASTARTTRIG2_INVERT_B_3 (1<<19)

#define OASTARTTRIG2_INVERT_C_0 (1<<20)

#define OASTARTTRIG2_INVERT_C_1 (1<<21)

#define OASTARTTRIG2_INVERT_D_0 (1<<22)

#define OASTARTTRIG2_THRESHOLD_ENABLE	    (1<<23)

#define OASTARTTRIG2_START_TRIG_FLAG_MBZ    (1<<24)

#define OASTARTTRIG2_EVENT_SELECT_0  (1<<28)

#define OASTARTTRIG2_EVENT_SELECT_1  (1<<29)

#define OASTARTTRIG2_EVENT_SELECT_2  (1<<30)

#define OASTARTTRIG2_EVENT_SELECT_3  (1<<31)



#define OASTARTTRIG3 _MMIO(0x2718)

#define OASTARTTRIG3_NOA_SELECT_MASK	   0xf

#define OASTARTTRIG3_NOA_SELECT_8_SHIFT    0

#define OASTARTTRIG3_NOA_SELECT_9_SHIFT    4

#define OASTARTTRIG3_NOA_SELECT_10_SHIFT   8

#define OASTARTTRIG3_NOA_SELECT_11_SHIFT   12

#define OASTARTTRIG3_NOA_SELECT_12_SHIFT   16

#define OASTARTTRIG3_NOA_SELECT_13_SHIFT   20

#define OASTARTTRIG3_NOA_SELECT_14_SHIFT   24

#define OASTARTTRIG3_NOA_SELECT_15_SHIFT   28



#define OASTARTTRIG4 _MMIO(0x271c)

#define OASTARTTRIG4_NOA_SELECT_MASK	    0xf

#define OASTARTTRIG4_NOA_SELECT_0_SHIFT    0

#define OASTARTTRIG4_NOA_SELECT_1_SHIFT    4

#define OASTARTTRIG4_NOA_SELECT_2_SHIFT    8

#define OASTARTTRIG4_NOA_SELECT_3_SHIFT    12

#define OASTARTTRIG4_NOA_SELECT_4_SHIFT    16

#define OASTARTTRIG4_NOA_SELECT_5_SHIFT    20

#define OASTARTTRIG4_NOA_SELECT_6_SHIFT    24

#define OASTARTTRIG4_NOA_SELECT_7_SHIFT    28



#define OASTARTTRIG5 _MMIO(0x2720)

#define OASTARTTRIG5_THRESHOLD_COUNT_MASK_MBZ 0xffff0000

#define OASTARTTRIG5_THRESHOLD_MASK	      0xffff



#define OASTARTTRIG6 _MMIO(0x2724)

#define OASTARTTRIG6_INVERT_A_0 (1<<0)

#define OASTARTTRIG6_INVERT_A_1 (1<<1)

#define OASTARTTRIG6_INVERT_A_2 (1<<2)

#define OASTARTTRIG6_INVERT_A_3 (1<<3)

#define OASTARTTRIG6_INVERT_A_4 (1<<4)

#define OASTARTTRIG6_INVERT_A_5 (1<<5)

#define OASTARTTRIG6_INVERT_A_6 (1<<6)

#define OASTARTTRIG6_INVERT_A_7 (1<<7)

#define OASTARTTRIG6_INVERT_A_8 (1<<8)

#define OASTARTTRIG6_INVERT_A_9 (1<<9)

#define OASTARTTRIG6_INVERT_A_10 (1<<10)

#define OASTARTTRIG6_INVERT_A_11 (1<<11)

#define OASTARTTRIG6_INVERT_A_12 (1<<12)

#define OASTARTTRIG6_INVERT_A_13 (1<<13)

#define OASTARTTRIG6_INVERT_A_14 (1<<14)

#define OASTARTTRIG6_INVERT_A_15 (1<<15)

#define OASTARTTRIG6_INVERT_B_0 (1<<16)

#define OASTARTTRIG6_INVERT_B_1 (1<<17)

#define OASTARTTRIG6_INVERT_B_2 (1<<18)

#define OASTARTTRIG6_INVERT_B_3 (1<<19)

#define OASTARTTRIG6_INVERT_C_0 (1<<20)

#define OASTARTTRIG6_INVERT_C_1 (1<<21)

#define OASTARTTRIG6_INVERT_D_0 (1<<22)

#define OASTARTTRIG6_THRESHOLD_ENABLE	    (1<<23)

#define OASTARTTRIG6_START_TRIG_FLAG_MBZ    (1<<24)

#define OASTARTTRIG6_EVENT_SELECT_4  (1<<28)

#define OASTARTTRIG6_EVENT_SELECT_5  (1<<29)

#define OASTARTTRIG6_EVENT_SELECT_6  (1<<30)

#define OASTARTTRIG6_EVENT_SELECT_7  (1<<31)



#define OASTARTTRIG7 _MMIO(0x2728)

#define OASTARTTRIG7_NOA_SELECT_MASK	   0xf

#define OASTARTTRIG7_NOA_SELECT_8_SHIFT    0

#define OASTARTTRIG7_NOA_SELECT_9_SHIFT    4

#define OASTARTTRIG7_NOA_SELECT_10_SHIFT   8

#define OASTARTTRIG7_NOA_SELECT_11_SHIFT   12

#define OASTARTTRIG7_NOA_SELECT_12_SHIFT   16

#define OASTARTTRIG7_NOA_SELECT_13_SHIFT   20

#define OASTARTTRIG7_NOA_SELECT_14_SHIFT   24

#define OASTARTTRIG7_NOA_SELECT_15_SHIFT   28



#define OASTARTTRIG8 _MMIO(0x272c)

#define OASTARTTRIG8_NOA_SELECT_MASK	   0xf

#define OASTARTTRIG8_NOA_SELECT_0_SHIFT    0

#define OASTARTTRIG8_NOA_SELECT_1_SHIFT    4

#define OASTARTTRIG8_NOA_SELECT_2_SHIFT    8

#define OASTARTTRIG8_NOA_SELECT_3_SHIFT    12

#define OASTARTTRIG8_NOA_SELECT_4_SHIFT    16

#define OASTARTTRIG8_NOA_SELECT_5_SHIFT    20

#define OASTARTTRIG8_NOA_SELECT_6_SHIFT    24

#define OASTARTTRIG8_NOA_SELECT_7_SHIFT    28



/* CECX_0 */

#define OACEC_COMPARE_LESS_OR_EQUAL	6

#define OACEC_COMPARE_NOT_EQUAL		5

#define OACEC_COMPARE_LESS_THAN		4

#define OACEC_COMPARE_GREATER_OR_EQUAL	3

#define OACEC_COMPARE_EQUAL		2

#define OACEC_COMPARE_GREATER_THAN	1

#define OACEC_COMPARE_ANY_EQUAL		0



#define OACEC_COMPARE_VALUE_MASK    0xffff

#define OACEC_COMPARE_VALUE_SHIFT   3



#define OACEC_SELECT_NOA	(0<<19)

#define OACEC_SELECT_PREV	(1<<19)

#define OACEC_SELECT_BOOLEAN	(2<<19)



/* CECX_1 */

#define OACEC_MASK_MASK		    0xffff

#define OACEC_CONSIDERATIONS_MASK   0xffff

#define OACEC_CONSIDERATIONS_SHIFT  16



#define OACEC0_0 _MMIO(0x2770)

#define OACEC0_1 _MMIO(0x2774)

#define OACEC1_0 _MMIO(0x2778)

#define OACEC1_1 _MMIO(0x277c)

#define OACEC2_0 _MMIO(0x2780)

#define OACEC2_1 _MMIO(0x2784)

#define OACEC3_0 _MMIO(0x2788)

#define OACEC3_1 _MMIO(0x278c)

#define OACEC4_0 _MMIO(0x2790)

#define OACEC4_1 _MMIO(0x2794)

#define OACEC5_0 _MMIO(0x2798)

#define OACEC5_1 _MMIO(0x279c)

#define OACEC6_0 _MMIO(0x27a0)

#define OACEC6_1 _MMIO(0x27a4)

#define OACEC7_0 _MMIO(0x27a8)

#define OACEC7_1 _MMIO(0x27ac)





#define _GEN7_PIPEA_DE_LOAD_SL	0x70068

#define _GEN7_PIPEB_DE_LOAD_SL	0x71068
@@ -6914,6 +7251,7 @@ enum { 
# define GEN6_RCCUNIT_CLOCK_GATE_DISABLE		(1 << 11)



#define GEN6_UCGCTL3				_MMIO(0x9408)

# define GEN6_OACSUNIT_CLOCK_GATE_DISABLE		(1 << 20)



#define GEN7_UCGCTL4				_MMIO(0x940c)

#define  GEN7_L3BANK2X_CLOCK_GATE_DISABLE	(1<<25)

include/uapi/drm/i915_drm.h

+69 −2
Original line number Diff line number Diff line
@@ -1230,6 +1230,18 @@ struct drm_i915_gem_context_param { 
	__u64 value;

};



enum drm_i915_oa_format {

	I915_OA_FORMAT_A13 = 1,

	I915_OA_FORMAT_A29,

	I915_OA_FORMAT_A13_B8_C8,

	I915_OA_FORMAT_B4_C8,

	I915_OA_FORMAT_A45_B8_C8,

	I915_OA_FORMAT_B4_C8_A16,

	I915_OA_FORMAT_C4_B8,



	I915_OA_FORMAT_MAX	    /* non-ABI */

};



enum drm_i915_perf_property_id {

	/**

	 * Open the stream for a specific context handle (as used with
@@ -1238,6 +1250,32 @@ enum drm_i915_perf_property_id { 
	 */

	DRM_I915_PERF_PROP_CTX_HANDLE = 1,



	/**

	 * A value of 1 requests the inclusion of raw OA unit reports as

	 * part of stream samples.

	 */

	DRM_I915_PERF_PROP_SAMPLE_OA,



	/**

	 * The value specifies which set of OA unit metrics should be

	 * be configured, defining the contents of any OA unit reports.

	 */

	DRM_I915_PERF_PROP_OA_METRICS_SET,



	/**

	 * The value specifies the size and layout of OA unit reports.

	 */

	DRM_I915_PERF_PROP_OA_FORMAT,



	/**

	 * Specifying this property implicitly requests periodic OA unit

	 * sampling and (at least on Haswell) the sampling frequency is derived

	 * from this exponent as follows:

	 *

	 *   80ns * 2^(period_exponent + 1)

	 */

	DRM_I915_PERF_PROP_OA_EXPONENT,



	DRM_I915_PERF_PROP_MAX /* non-ABI */

};
@@ -1257,7 +1295,23 @@ struct drm_i915_perf_open_param { 
	__u64 __user properties_ptr;

};



/**

 * Enable data capture for a stream that was either opened in a disabled state

 * via I915_PERF_FLAG_DISABLED or was later disabled via

 * I915_PERF_IOCTL_DISABLE.

 *

 * It is intended to be cheaper to disable and enable a stream than it may be

 * to close and re-open a stream with the same configuration.

 *

 * It's undefined whether any pending data for the stream will be lost.

 */

#define I915_PERF_IOCTL_ENABLE	_IO('i', 0x0)



/**

 * Disable data capture for a stream.

 *

 * It is an error to try and read a stream that is disabled.

 */

#define I915_PERF_IOCTL_DISABLE	_IO('i', 0x1)



/**
@@ -1281,17 +1335,30 @@ enum drm_i915_perf_record_type { 
	 * every sample.

	 *

	 * The order of these sample properties given by userspace has no

	 * affect on the ordering of data within a sample. The order will be

	 * affect on the ordering of data within a sample. The order is

	 * documented here.

	 *

	 * struct {

	 *     struct drm_i915_perf_record_header header;

	 *

	 *     TODO: itemize extensible sample data here

	 *     { u32 oa_report[]; } && DRM_I915_PERF_PROP_SAMPLE_OA

	 * };

	 */

	DRM_I915_PERF_RECORD_SAMPLE = 1,



	/*

	 * Indicates that one or more OA reports were not written by the

	 * hardware. This can happen for example if an MI_REPORT_PERF_COUNT

	 * command collides with periodic sampling - which would be more likely

	 * at higher sampling frequencies.

	 */

	DRM_I915_PERF_RECORD_OA_REPORT_LOST = 2,



	/**

	 * An error occurred that resulted in all pending OA reports being lost.

	 */

	DRM_I915_PERF_RECORD_OA_BUFFER_LOST = 3,



	DRM_I915_PERF_RECORD_MAX /* non-ABI */

};

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