238 lines
5.7 KiB
C
238 lines
5.7 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2019 Intel Corporation
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*/
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#ifndef __INTEL_DE_H__
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#define __INTEL_DE_H__
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#include "i915_drv.h"
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#include "i915_trace.h"
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#include "intel_dsb.h"
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#include "intel_uncore.h"
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static inline struct intel_uncore *__to_uncore(struct intel_display *display)
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{
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return &to_i915(display->drm)->uncore;
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}
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static inline u32
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__intel_de_read(struct intel_display *display, i915_reg_t reg)
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{
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u32 val;
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intel_dmc_wl_get(display, reg);
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val = intel_uncore_read(__to_uncore(display), reg);
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intel_dmc_wl_put(display, reg);
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return val;
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}
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#define intel_de_read(p,...) __intel_de_read(__to_intel_display(p), __VA_ARGS__)
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static inline u8
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intel_de_read8(struct intel_display *display, i915_reg_t reg)
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{
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u8 val;
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intel_dmc_wl_get(display, reg);
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val = intel_uncore_read8(__to_uncore(display), reg);
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intel_dmc_wl_put(display, reg);
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return val;
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}
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static inline u64
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intel_de_read64_2x32(struct intel_display *display,
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i915_reg_t lower_reg, i915_reg_t upper_reg)
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{
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u64 val;
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intel_dmc_wl_get(display, lower_reg);
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intel_dmc_wl_get(display, upper_reg);
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val = intel_uncore_read64_2x32(__to_uncore(display), lower_reg,
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upper_reg);
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intel_dmc_wl_put(display, upper_reg);
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intel_dmc_wl_put(display, lower_reg);
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return val;
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}
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static inline void
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__intel_de_posting_read(struct intel_display *display, i915_reg_t reg)
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{
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intel_dmc_wl_get(display, reg);
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intel_uncore_posting_read(__to_uncore(display), reg);
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intel_dmc_wl_put(display, reg);
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}
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#define intel_de_posting_read(p,...) __intel_de_posting_read(__to_intel_display(p), __VA_ARGS__)
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static inline void
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__intel_de_write(struct intel_display *display, i915_reg_t reg, u32 val)
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{
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intel_dmc_wl_get(display, reg);
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intel_uncore_write(__to_uncore(display), reg, val);
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intel_dmc_wl_put(display, reg);
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}
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#define intel_de_write(p,...) __intel_de_write(__to_intel_display(p), __VA_ARGS__)
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static inline u32
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__intel_de_rmw_nowl(struct intel_display *display, i915_reg_t reg,
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u32 clear, u32 set)
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{
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return intel_uncore_rmw(__to_uncore(display), reg, clear, set);
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}
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static inline u32
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__intel_de_rmw(struct intel_display *display, i915_reg_t reg, u32 clear,
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u32 set)
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{
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u32 val;
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intel_dmc_wl_get(display, reg);
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val = __intel_de_rmw_nowl(display, reg, clear, set);
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intel_dmc_wl_put(display, reg);
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return val;
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}
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#define intel_de_rmw(p,...) __intel_de_rmw(__to_intel_display(p), __VA_ARGS__)
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static inline int
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__intel_de_wait_for_register_nowl(struct intel_display *display,
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i915_reg_t reg,
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u32 mask, u32 value, unsigned int timeout)
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{
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return intel_wait_for_register(__to_uncore(display), reg, mask,
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value, timeout);
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}
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static inline int
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intel_de_wait(struct intel_display *display, i915_reg_t reg,
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u32 mask, u32 value, unsigned int timeout)
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{
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int ret;
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intel_dmc_wl_get(display, reg);
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ret = __intel_de_wait_for_register_nowl(display, reg, mask, value,
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timeout);
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intel_dmc_wl_put(display, reg);
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return ret;
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}
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static inline int
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intel_de_wait_fw(struct intel_display *display, i915_reg_t reg,
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u32 mask, u32 value, unsigned int timeout)
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{
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int ret;
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intel_dmc_wl_get(display, reg);
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ret = intel_wait_for_register_fw(__to_uncore(display), reg, mask,
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value, timeout);
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intel_dmc_wl_put(display, reg);
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return ret;
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}
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static inline int
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intel_de_wait_custom(struct intel_display *display, i915_reg_t reg,
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u32 mask, u32 value,
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unsigned int fast_timeout_us,
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unsigned int slow_timeout_ms, u32 *out_value)
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{
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int ret;
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intel_dmc_wl_get(display, reg);
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ret = __intel_wait_for_register(__to_uncore(display), reg, mask,
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value,
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fast_timeout_us, slow_timeout_ms, out_value);
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intel_dmc_wl_put(display, reg);
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return ret;
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}
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static inline int
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__intel_de_wait_for_set(struct intel_display *display, i915_reg_t reg,
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u32 mask, unsigned int timeout)
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{
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return intel_de_wait(display, reg, mask, mask, timeout);
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}
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#define intel_de_wait_for_set(p,...) __intel_de_wait_for_set(__to_intel_display(p), __VA_ARGS__)
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static inline int
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__intel_de_wait_for_clear(struct intel_display *display, i915_reg_t reg,
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u32 mask, unsigned int timeout)
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{
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return intel_de_wait(display, reg, mask, 0, timeout);
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}
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#define intel_de_wait_for_clear(p,...) __intel_de_wait_for_clear(__to_intel_display(p), __VA_ARGS__)
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/*
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* Unlocked mmio-accessors, think carefully before using these.
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*
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* Certain architectures will die if the same cacheline is concurrently accessed
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* by different clients (e.g. on Ivybridge). Access to registers should
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* therefore generally be serialised, by either the dev_priv->uncore.lock or
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* a more localised lock guarding all access to that bank of registers.
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*/
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static inline u32
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__intel_de_read_fw(struct intel_display *display, i915_reg_t reg)
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{
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u32 val;
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val = intel_uncore_read_fw(__to_uncore(display), reg);
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trace_i915_reg_rw(false, reg, val, sizeof(val), true);
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return val;
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}
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#define intel_de_read_fw(p,...) __intel_de_read_fw(__to_intel_display(p), __VA_ARGS__)
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static inline void
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__intel_de_write_fw(struct intel_display *display, i915_reg_t reg, u32 val)
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{
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trace_i915_reg_rw(true, reg, val, sizeof(val), true);
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intel_uncore_write_fw(__to_uncore(display), reg, val);
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}
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#define intel_de_write_fw(p,...) __intel_de_write_fw(__to_intel_display(p), __VA_ARGS__)
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static inline u32
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intel_de_read_notrace(struct intel_display *display, i915_reg_t reg)
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{
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return intel_uncore_read_notrace(__to_uncore(display), reg);
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}
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static inline void
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intel_de_write_notrace(struct intel_display *display, i915_reg_t reg, u32 val)
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{
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intel_uncore_write_notrace(__to_uncore(display), reg, val);
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}
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static __always_inline void
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intel_de_write_dsb(struct intel_display *display, struct intel_dsb *dsb,
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i915_reg_t reg, u32 val)
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{
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if (dsb)
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intel_dsb_reg_write(dsb, reg, val);
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else
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intel_de_write_fw(display, reg, val);
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}
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#endif /* __INTEL_DE_H__ */
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