drivers/gpu/drm/i915/gt/intel_rps.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/i915/gt/intel_rps.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/i915/gt/intel_rps.h
Extension
.h
Size
4353 bytes
Lines
134
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef INTEL_RPS_H
#define INTEL_RPS_H

#include "intel_rps_types.h"
#include "i915_reg_defs.h"

struct i915_request;
struct drm_printer;

#define GT_FREQUENCY_MULTIPLIER 50
#define GEN9_FREQ_SCALER 3

void intel_rps_init_early(struct intel_rps *rps);
void intel_rps_init(struct intel_rps *rps);
void intel_rps_sanitize(struct intel_rps *rps);

void intel_rps_driver_register(struct intel_rps *rps);
void intel_rps_driver_unregister(struct intel_rps *rps);

void intel_rps_enable(struct intel_rps *rps);
void intel_rps_disable(struct intel_rps *rps);

void intel_rps_park(struct intel_rps *rps);
void intel_rps_unpark(struct intel_rps *rps);
void intel_rps_boost(struct i915_request *rq);
void intel_rps_dec_waiters(struct intel_rps *rps);
u32 intel_rps_get_boost_frequency(struct intel_rps *rps);
int intel_rps_set_boost_frequency(struct intel_rps *rps, u32 freq);

int intel_rps_set(struct intel_rps *rps, u8 val);
void intel_rps_mark_interactive(struct intel_rps *rps, bool interactive);

int intel_gpu_freq(struct intel_rps *rps, int val);
int intel_freq_opcode(struct intel_rps *rps, int val);
u8 intel_rps_get_up_threshold(struct intel_rps *rps);
int intel_rps_set_up_threshold(struct intel_rps *rps, u8 threshold);
u8 intel_rps_get_down_threshold(struct intel_rps *rps);
int intel_rps_set_down_threshold(struct intel_rps *rps, u8 threshold);
u32 intel_rps_read_actual_frequency(struct intel_rps *rps);
u32 intel_rps_read_actual_frequency_fw(struct intel_rps *rps);
u32 intel_rps_get_requested_frequency(struct intel_rps *rps);
u32 intel_rps_get_min_frequency(struct intel_rps *rps);
u32 intel_rps_get_min_raw_freq(struct intel_rps *rps);
int intel_rps_set_min_frequency(struct intel_rps *rps, u32 val);
u32 intel_rps_get_max_frequency(struct intel_rps *rps);
u32 intel_rps_get_max_raw_freq(struct intel_rps *rps);
int intel_rps_set_max_frequency(struct intel_rps *rps, u32 val);
u32 intel_rps_get_rp0_frequency(struct intel_rps *rps);
u32 intel_rps_get_rp1_frequency(struct intel_rps *rps);
u32 intel_rps_get_rpn_frequency(struct intel_rps *rps);
u32 intel_rps_read_punit_req_frequency(struct intel_rps *rps);
u32 intel_rps_read_rpstat(struct intel_rps *rps);
void gen6_rps_get_freq_caps(struct intel_rps *rps, struct intel_rps_freq_caps *caps);
void intel_rps_raise_unslice(struct intel_rps *rps);
void intel_rps_lower_unslice(struct intel_rps *rps);

u32 intel_rps_read_throttle_reason(struct intel_rps *rps);
bool rps_read_mask_mmio(struct intel_rps *rps, i915_reg_t reg32, u32 mask);

void gen6_rps_frequency_dump(struct intel_rps *rps, struct drm_printer *p);

void gen5_rps_irq_handler(struct intel_rps *rps);
void gen6_rps_irq_handler(struct intel_rps *rps, u32 pm_iir);
void gen11_rps_irq_handler(struct intel_rps *rps, u32 pm_iir);

static inline bool intel_rps_is_enabled(const struct intel_rps *rps)
{
	return test_bit(INTEL_RPS_ENABLED, &rps->flags);
}

static inline void intel_rps_set_enabled(struct intel_rps *rps)
{
	set_bit(INTEL_RPS_ENABLED, &rps->flags);
}

static inline void intel_rps_clear_enabled(struct intel_rps *rps)
{
	clear_bit(INTEL_RPS_ENABLED, &rps->flags);
}

static inline bool intel_rps_is_active(const struct intel_rps *rps)
{
	return test_bit(INTEL_RPS_ACTIVE, &rps->flags);
}

static inline void intel_rps_set_active(struct intel_rps *rps)
{
	set_bit(INTEL_RPS_ACTIVE, &rps->flags);
}

Annotation

Implementation Notes