mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-08-31 22:23:05 +00:00
9c75b16cab
Expose system timestamp and frequency supported by the GPU. Mali uses an external timer as GPU system time. On ARM, this is wired to the generic arch timer so we wire cntfrq_el0 as device frequency. This new uAPI will be used in Mesa to implement timestamp queries and VK_KHR_calibrated_timestamps. v2: - Rewrote to use GPU timestamp register - Add missing include for arch_timer_get_cntfrq - Rework commit message v3: - Move panfrost_cycle_counter_get and panfrost_cycle_counter_put to panfrost_ioctl_query_timestamp - Handle possible overflow in panfrost_timestamp_read Signed-off-by: Mary Guillemard <mary.guillemard@collabora.com> Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Steven Price <steven.price@arm.com> Signed-off-by: Steven Price <steven.price@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240819080224.24914-2-mary.guillemard@collabora.com
28 lines
996 B
C
28 lines
996 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/* Copyright 2018 Marty E. Plummer <hanetzer@startmail.com> */
|
|
/* Copyright 2019 Collabora ltd. */
|
|
|
|
#ifndef __PANFROST_GPU_H__
|
|
#define __PANFROST_GPU_H__
|
|
|
|
struct panfrost_device;
|
|
|
|
int panfrost_gpu_init(struct panfrost_device *pfdev);
|
|
void panfrost_gpu_fini(struct panfrost_device *pfdev);
|
|
|
|
u32 panfrost_gpu_get_latest_flush_id(struct panfrost_device *pfdev);
|
|
|
|
int panfrost_gpu_soft_reset(struct panfrost_device *pfdev);
|
|
void panfrost_gpu_power_on(struct panfrost_device *pfdev);
|
|
void panfrost_gpu_power_off(struct panfrost_device *pfdev);
|
|
void panfrost_gpu_suspend_irq(struct panfrost_device *pfdev);
|
|
|
|
void panfrost_cycle_counter_get(struct panfrost_device *pfdev);
|
|
void panfrost_cycle_counter_put(struct panfrost_device *pfdev);
|
|
unsigned long long panfrost_cycle_counter_read(struct panfrost_device *pfdev);
|
|
unsigned long long panfrost_timestamp_read(struct panfrost_device *pfdev);
|
|
|
|
void panfrost_gpu_amlogic_quirk(struct panfrost_device *pfdev);
|
|
|
|
#endif
|