/* * Copyright © 2017 Intel Corporation * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS * IN THE SOFTWARE. * */ #ifndef __INTEL_UNCORE_H__ #define __INTEL_UNCORE_H__ #include #include #include #include "i915_reg.h" struct drm_i915_private; enum forcewake_domain_id { FW_DOMAIN_ID_RENDER = 0, FW_DOMAIN_ID_BLITTER, FW_DOMAIN_ID_MEDIA, FW_DOMAIN_ID_COUNT }; enum forcewake_domains { FORCEWAKE_RENDER = BIT(FW_DOMAIN_ID_RENDER), FORCEWAKE_BLITTER = BIT(FW_DOMAIN_ID_BLITTER), FORCEWAKE_MEDIA = BIT(FW_DOMAIN_ID_MEDIA), FORCEWAKE_ALL = (FORCEWAKE_RENDER | FORCEWAKE_BLITTER | FORCEWAKE_MEDIA) }; struct intel_uncore_funcs { void (*force_wake_get)(struct drm_i915_private *dev_priv, enum forcewake_domains domains); void (*force_wake_put)(struct drm_i915_private *dev_priv, enum forcewake_domains domains); uint8_t (*mmio_readb)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace); uint16_t (*mmio_readw)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace); uint32_t (*mmio_readl)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace); uint64_t (*mmio_readq)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace); void (*mmio_writeb)(struct drm_i915_private *dev_priv, i915_reg_t r, uint8_t val, bool trace); void (*mmio_writew)(struct drm_i915_private *dev_priv, i915_reg_t r, uint16_t val, bool trace); void (*mmio_writel)(struct drm_i915_private *dev_priv, i915_reg_t r, uint32_t val, bool trace); }; struct intel_forcewake_range { u32 start; u32 end; enum forcewake_domains domains; }; struct intel_uncore { spinlock_t lock; /** lock is also taken in irq contexts. */ const struct intel_forcewake_range *fw_domains_table; unsigned int fw_domains_table_entries; struct notifier_block pmic_bus_access_nb; struct intel_uncore_funcs funcs; unsigned int fifo_count; enum forcewake_domains fw_domains; enum forcewake_domains fw_domains_active; u32 fw_set; u32 fw_clear; u32 fw_reset; struct intel_uncore_forcewake_domain { enum forcewake_domain_id id; enum forcewake_domains mask; unsigned int wake_count; bool active; struct hrtimer timer; i915_reg_t reg_set; i915_reg_t reg_ack; } fw_domain[FW_DOMAIN_ID_COUNT]; struct { unsigned int count; int saved_mmio_check; int saved_mmio_debug; } user_forcewake; int unclaimed_mmio_check; }; /* Iterate over initialised fw domains */ #define for_each_fw_domain_masked(domain__, mask__, dev_priv__, tmp__) \ for (tmp__ = (mask__); \ tmp__ ? (domain__ = &(dev_priv__)->uncore.fw_domain[__mask_next_bit(tmp__)]), 1 : 0;) #define for_each_fw_domain(domain__, dev_priv__, tmp__) \ for_each_fw_domain_masked(domain__, (dev_priv__)->uncore.fw_domains, dev_priv__, tmp__) void intel_uncore_sanitize(struct drm_i915_private *dev_priv); void intel_uncore_init(struct drm_i915_private *dev_priv); bool intel_uncore_unclaimed_mmio(struct drm_i915_private *dev_priv); bool intel_uncore_arm_unclaimed_mmio_detection(struct drm_i915_private *dev_priv); void intel_uncore_fini(struct drm_i915_private *dev_priv); void intel_uncore_suspend(struct drm_i915_private *dev_priv); void intel_uncore_resume_early(struct drm_i915_private *dev_priv); void intel_uncore_runtime_resume(struct drm_i915_private *dev_priv); u64 intel_uncore_edram_size(struct drm_i915_private *dev_priv); void assert_forcewakes_inactive(struct drm_i915_private *dev_priv); void assert_forcewakes_active(struct drm_i915_private *dev_priv, enum forcewake_domains fw_domains); const char *intel_uncore_forcewake_domain_to_str(const enum forcewake_domain_id id); enum forcewake_domains intel_uncore_forcewake_for_reg(struct drm_i915_private *dev_priv, i915_reg_t reg, unsigned int op); #define FW_REG_READ (1) #define FW_REG_WRITE (2) void intel_uncore_forcewake_get(struct drm_i915_private *dev_priv, enum forcewake_domains domains); void intel_uncore_forcewake_put(struct drm_i915_private *dev_priv, enum forcewake_domains domains); /* Like above but the caller must manage the uncore.lock itself. * Must be used with I915_READ_FW and friends. */ void intel_uncore_forcewake_get__locked(struct drm_i915_private *dev_priv, enum forcewake_domains domains); void intel_uncore_forcewake_put__locked(struct drm_i915_private *dev_priv, enum forcewake_domains domains); void intel_uncore_forcewake_user_get(struct drm_i915_private *dev_priv); void intel_uncore_forcewake_user_put(struct drm_i915_private *dev_priv); int __intel_wait_for_register(struct drm_i915_private *dev_priv, i915_reg_t reg, u32 mask, u32 value, unsigned int fast_timeout_us, unsigned int slow_timeout_ms, u32 *out_value); static inline int intel_wait_for_register(struct drm_i915_private *dev_priv, i915_reg_t reg, u32 mask, u32 value, unsigned int timeout_ms) { return __intel_wait_for_register(dev_priv, reg, mask, value, 2, timeout_ms, NULL); } int __intel_wait_for_register_fw(struct drm_i915_private *dev_priv, i915_reg_t reg, u32 mask, u32 value, unsigned int fast_timeout_us, unsigned int slow_timeout_ms, u32 *out_value); static inline int intel_wait_for_register_fw(struct drm_i915_private *dev_priv, i915_reg_t reg, u32 mask, u32 value, unsigned int timeout_ms) { return __intel_wait_for_register_fw(dev_priv, reg, mask, value, 2, timeout_ms, NULL); } #define raw_reg_read(base, reg) \ readl(base + i915_mmio_reg_offset(reg)) #define raw_reg_write(base, reg, value) \ writel(value, base + i915_mmio_reg_offset(reg)) #endif /* !__INTEL_UNCORE_H__ */