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/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2019 Intel Corporation
*/
#ifndef __INTEL_DE_H__
#define __INTEL_DE_H__
#include "i915_drv.h"
#include "i915_trace.h"
#include "intel_uncore.h"
static inline u32
intel_de_read(struct drm_i915_private *i915, i915_reg_t reg)
{
u32 val;
intel_dmc_wl_get(i915, reg);
val = intel_uncore_read(&i915->uncore, reg);
intel_dmc_wl_put(i915, reg);
return val;
}
static inline u8
intel_de_read8(struct drm_i915_private *i915, i915_reg_t reg)
{
u8 val;
intel_dmc_wl_get(i915, reg);
val = intel_uncore_read8(&i915->uncore, reg);
intel_dmc_wl_put(i915, reg);
return val;
}
static inline u64
intel_de_read64_2x32(struct drm_i915_private *i915,
i915_reg_t lower_reg, i915_reg_t upper_reg)
{
u64 val;
intel_dmc_wl_get(i915, lower_reg);
intel_dmc_wl_get(i915, upper_reg);
val = intel_uncore_read64_2x32(&i915->uncore, lower_reg, upper_reg);
intel_dmc_wl_put(i915, upper_reg);
intel_dmc_wl_put(i915, lower_reg);
return val;
}
static inline void
intel_de_posting_read(struct drm_i915_private *i915, i915_reg_t reg)
{
intel_dmc_wl_get(i915, reg);
intel_uncore_posting_read(&i915->uncore, reg);
intel_dmc_wl_put(i915, reg);
}
static inline void
intel_de_write(struct drm_i915_private *i915, i915_reg_t reg, u32 val)
{
intel_dmc_wl_get(i915, reg);
intel_uncore_write(&i915->uncore, reg, val);
intel_dmc_wl_put(i915, reg);
}
static inline u32
__intel_de_rmw_nowl(struct drm_i915_private *i915, i915_reg_t reg,
u32 clear, u32 set)
{
return intel_uncore_rmw(&i915->uncore, reg, clear, set);
}
static inline u32
intel_de_rmw(struct drm_i915_private *i915, i915_reg_t reg, u32 clear, u32 set)
{
u32 val;
intel_dmc_wl_get(i915, reg);
val = __intel_de_rmw_nowl(i915, reg, clear, set);
intel_dmc_wl_put(i915, reg);
return val;
}
static inline int
__intel_wait_for_register_nowl(struct drm_i915_private *i915, i915_reg_t reg,
u32 mask, u32 value, unsigned int timeout)
{
return intel_wait_for_register(&i915->uncore, reg, mask,
value, timeout);
}
static inline int
intel_de_wait(struct drm_i915_private *i915, i915_reg_t reg,
u32 mask, u32 value, unsigned int timeout)
{
int ret;
intel_dmc_wl_get(i915, reg);
ret = __intel_wait_for_register_nowl(i915, reg, mask, value, timeout);
intel_dmc_wl_put(i915, reg);
return ret;
}
static inline int
intel_de_wait_fw(struct drm_i915_private *i915, i915_reg_t reg,
u32 mask, u32 value, unsigned int timeout)
{
int ret;
intel_dmc_wl_get(i915, reg);
ret = intel_wait_for_register_fw(&i915->uncore, reg, mask, value, timeout);
intel_dmc_wl_put(i915, reg);
return ret;
}
static inline int
intel_de_wait_custom(struct drm_i915_private *i915, i915_reg_t reg,
u32 mask, u32 value,
unsigned int fast_timeout_us,
unsigned int slow_timeout_ms, u32 *out_value)
{
int ret;
intel_dmc_wl_get(i915, reg);
ret = __intel_wait_for_register(&i915->uncore, reg, mask, value,
fast_timeout_us, slow_timeout_ms, out_value);
intel_dmc_wl_put(i915, reg);
return ret;
}
static inline int
intel_de_wait_for_set(struct drm_i915_private *i915, i915_reg_t reg,
u32 mask, unsigned int timeout)
{
return intel_de_wait(i915, reg, mask, mask, timeout);
}
static inline int
intel_de_wait_for_clear(struct drm_i915_private *i915, i915_reg_t reg,
u32 mask, unsigned int timeout)
{
return intel_de_wait(i915, reg, mask, 0, timeout);
}
/*
* Unlocked mmio-accessors, think carefully before using these.
*
* Certain architectures will die if the same cacheline is concurrently accessed
* by different clients (e.g. on Ivybridge). Access to registers should
* therefore generally be serialised, by either the dev_priv->uncore.lock or
* a more localised lock guarding all access to that bank of registers.
*/
static inline u32
intel_de_read_fw(struct drm_i915_private *i915, i915_reg_t reg)
{
u32 val;
val = intel_uncore_read_fw(&i915->uncore, reg);
trace_i915_reg_rw(false, reg, val, sizeof(val), true);
return val;
}
static inline void
intel_de_write_fw(struct drm_i915_private *i915, i915_reg_t reg, u32 val)
{
trace_i915_reg_rw(true, reg, val, sizeof(val), true);
intel_uncore_write_fw(&i915->uncore, reg, val);
}
static inline u32
intel_de_read_notrace(struct drm_i915_private *i915, i915_reg_t reg)
{
return intel_uncore_read_notrace(&i915->uncore, reg);
}
static inline void
intel_de_write_notrace(struct drm_i915_private *i915, i915_reg_t reg, u32 val)
{
intel_uncore_write_notrace(&i915->uncore, reg, val);
}
#endif /* __INTEL_DE_H__ */
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