mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-24 06:21:34 +07:00
4bced8bea0
Midgard/Bifrost GPUs have a bunch of feature registers providing details of what the hardware supports. Panfrost already reads these, this patch exports them all to user space so that the jobs created by the user space driver can be tuned for the particular hardware implementation. Signed-off-by: Steven Price <steven.price@arm.com> Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190724105626.53552-1-steven.price@arm.com
138 lines
2.9 KiB
C
138 lines
2.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/* Copyright 2018 Marty E. Plummer <hanetzer@startmail.com> */
|
|
/* Copyright 2019 Linaro, Ltd, Rob Herring <robh@kernel.org> */
|
|
|
|
#ifndef __PANFROST_DEVICE_H__
|
|
#define __PANFROST_DEVICE_H__
|
|
|
|
#include <linux/spinlock.h>
|
|
#include <drm/drm_device.h>
|
|
#include <drm/drm_mm.h>
|
|
#include <drm/gpu_scheduler.h>
|
|
|
|
struct panfrost_device;
|
|
struct panfrost_mmu;
|
|
struct panfrost_job_slot;
|
|
struct panfrost_job;
|
|
struct panfrost_perfcnt;
|
|
|
|
#define NUM_JOB_SLOTS 3
|
|
|
|
struct panfrost_features {
|
|
u16 id;
|
|
u16 revision;
|
|
|
|
u64 shader_present;
|
|
u64 tiler_present;
|
|
u64 l2_present;
|
|
u64 stack_present;
|
|
u32 as_present;
|
|
u32 js_present;
|
|
|
|
u32 l2_features;
|
|
u32 core_features;
|
|
u32 tiler_features;
|
|
u32 mem_features;
|
|
u32 mmu_features;
|
|
u32 thread_features;
|
|
u32 max_threads;
|
|
u32 thread_max_workgroup_sz;
|
|
u32 thread_max_barrier_sz;
|
|
u32 coherency_features;
|
|
u32 texture_features[4];
|
|
u32 js_features[16];
|
|
|
|
u32 nr_core_groups;
|
|
u32 thread_tls_alloc;
|
|
|
|
unsigned long hw_features[64 / BITS_PER_LONG];
|
|
unsigned long hw_issues[64 / BITS_PER_LONG];
|
|
};
|
|
|
|
struct panfrost_devfreq_slot {
|
|
ktime_t busy_time;
|
|
ktime_t idle_time;
|
|
ktime_t time_last_update;
|
|
bool busy;
|
|
};
|
|
|
|
struct panfrost_device {
|
|
struct device *dev;
|
|
struct drm_device *ddev;
|
|
struct platform_device *pdev;
|
|
|
|
spinlock_t hwaccess_lock;
|
|
|
|
struct drm_mm mm;
|
|
spinlock_t mm_lock;
|
|
|
|
void __iomem *iomem;
|
|
struct clk *clock;
|
|
struct clk *bus_clock;
|
|
struct regulator *regulator;
|
|
struct reset_control *rstc;
|
|
|
|
struct panfrost_features features;
|
|
|
|
struct panfrost_mmu *mmu;
|
|
struct panfrost_job_slot *js;
|
|
|
|
struct panfrost_job *jobs[NUM_JOB_SLOTS];
|
|
struct list_head scheduled_jobs;
|
|
|
|
struct panfrost_perfcnt *perfcnt;
|
|
|
|
struct mutex sched_lock;
|
|
struct mutex reset_lock;
|
|
|
|
struct {
|
|
struct devfreq *devfreq;
|
|
struct thermal_cooling_device *cooling;
|
|
unsigned long cur_freq;
|
|
unsigned long cur_volt;
|
|
struct panfrost_devfreq_slot slot[NUM_JOB_SLOTS];
|
|
} devfreq;
|
|
};
|
|
|
|
struct panfrost_file_priv {
|
|
struct panfrost_device *pfdev;
|
|
|
|
struct drm_sched_entity sched_entity[NUM_JOB_SLOTS];
|
|
};
|
|
|
|
static inline struct panfrost_device *to_panfrost_device(struct drm_device *ddev)
|
|
{
|
|
return ddev->dev_private;
|
|
}
|
|
|
|
static inline int panfrost_model_cmp(struct panfrost_device *pfdev, s32 id)
|
|
{
|
|
s32 match_id = pfdev->features.id;
|
|
|
|
if (match_id & 0xf000)
|
|
match_id &= 0xf00f;
|
|
return match_id - id;
|
|
}
|
|
|
|
static inline bool panfrost_model_is_bifrost(struct panfrost_device *pfdev)
|
|
{
|
|
return panfrost_model_cmp(pfdev, 0x1000) >= 0;
|
|
}
|
|
|
|
static inline bool panfrost_model_eq(struct panfrost_device *pfdev, s32 id)
|
|
{
|
|
return !panfrost_model_cmp(pfdev, id);
|
|
}
|
|
|
|
int panfrost_unstable_ioctl_check(void);
|
|
|
|
int panfrost_device_init(struct panfrost_device *pfdev);
|
|
void panfrost_device_fini(struct panfrost_device *pfdev);
|
|
|
|
int panfrost_device_resume(struct device *dev);
|
|
int panfrost_device_suspend(struct device *dev);
|
|
|
|
const char *panfrost_exception_name(struct panfrost_device *pfdev, u32 exception_code);
|
|
|
|
#endif
|