2 * Copyright © 2017 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
25 #ifndef __INTEL_UNCORE_H__
26 #define __INTEL_UNCORE_H__
28 struct drm_i915_private
;
30 enum forcewake_domain_id
{
31 FW_DOMAIN_ID_RENDER
= 0,
38 enum forcewake_domains
{
39 FORCEWAKE_RENDER
= BIT(FW_DOMAIN_ID_RENDER
),
40 FORCEWAKE_BLITTER
= BIT(FW_DOMAIN_ID_BLITTER
),
41 FORCEWAKE_MEDIA
= BIT(FW_DOMAIN_ID_MEDIA
),
42 FORCEWAKE_ALL
= (FORCEWAKE_RENDER
|
47 struct intel_uncore_funcs
{
48 void (*force_wake_get
)(struct drm_i915_private
*dev_priv
,
49 enum forcewake_domains domains
);
50 void (*force_wake_put
)(struct drm_i915_private
*dev_priv
,
51 enum forcewake_domains domains
);
53 uint8_t (*mmio_readb
)(struct drm_i915_private
*dev_priv
,
54 i915_reg_t r
, bool trace
);
55 uint16_t (*mmio_readw
)(struct drm_i915_private
*dev_priv
,
56 i915_reg_t r
, bool trace
);
57 uint32_t (*mmio_readl
)(struct drm_i915_private
*dev_priv
,
58 i915_reg_t r
, bool trace
);
59 uint64_t (*mmio_readq
)(struct drm_i915_private
*dev_priv
,
60 i915_reg_t r
, bool trace
);
62 void (*mmio_writeb
)(struct drm_i915_private
*dev_priv
,
63 i915_reg_t r
, uint8_t val
, bool trace
);
64 void (*mmio_writew
)(struct drm_i915_private
*dev_priv
,
65 i915_reg_t r
, uint16_t val
, bool trace
);
66 void (*mmio_writel
)(struct drm_i915_private
*dev_priv
,
67 i915_reg_t r
, uint32_t val
, bool trace
);
70 struct intel_forcewake_range
{
74 enum forcewake_domains domains
;
78 spinlock_t lock
; /** lock is also taken in irq contexts. */
80 const struct intel_forcewake_range
*fw_domains_table
;
81 unsigned int fw_domains_table_entries
;
83 struct notifier_block pmic_bus_access_nb
;
84 struct intel_uncore_funcs funcs
;
86 unsigned int fifo_count
;
88 enum forcewake_domains fw_domains
;
89 enum forcewake_domains fw_domains_active
;
95 struct intel_uncore_forcewake_domain
{
96 enum forcewake_domain_id id
;
97 enum forcewake_domains mask
;
98 unsigned int wake_count
;
100 struct hrtimer timer
;
103 } fw_domain
[FW_DOMAIN_ID_COUNT
];
108 int saved_mmio_check
;
109 int saved_mmio_debug
;
112 int unclaimed_mmio_check
;
115 /* Iterate over initialised fw domains */
116 #define for_each_fw_domain_masked(domain__, mask__, dev_priv__, tmp__) \
117 for (tmp__ = (mask__); \
118 tmp__ ? (domain__ = &(dev_priv__)->uncore.fw_domain[__mask_next_bit(tmp__)]), 1 : 0;)
120 #define for_each_fw_domain(domain__, dev_priv__, tmp__) \
121 for_each_fw_domain_masked(domain__, (dev_priv__)->uncore.fw_domains, dev_priv__, tmp__)
124 void intel_uncore_sanitize(struct drm_i915_private
*dev_priv
);
125 void intel_uncore_init(struct drm_i915_private
*dev_priv
);
126 bool intel_uncore_unclaimed_mmio(struct drm_i915_private
*dev_priv
);
127 bool intel_uncore_arm_unclaimed_mmio_detection(struct drm_i915_private
*dev_priv
);
128 void intel_uncore_fini(struct drm_i915_private
*dev_priv
);
129 void intel_uncore_suspend(struct drm_i915_private
*dev_priv
);
130 void intel_uncore_resume_early(struct drm_i915_private
*dev_priv
);
132 u64
intel_uncore_edram_size(struct drm_i915_private
*dev_priv
);
133 void assert_forcewakes_inactive(struct drm_i915_private
*dev_priv
);
134 const char *intel_uncore_forcewake_domain_to_str(const enum forcewake_domain_id id
);
136 enum forcewake_domains
137 intel_uncore_forcewake_for_reg(struct drm_i915_private
*dev_priv
,
138 i915_reg_t reg
, unsigned int op
);
139 #define FW_REG_READ (1)
140 #define FW_REG_WRITE (2)
142 void intel_uncore_forcewake_get(struct drm_i915_private
*dev_priv
,
143 enum forcewake_domains domains
);
144 void intel_uncore_forcewake_put(struct drm_i915_private
*dev_priv
,
145 enum forcewake_domains domains
);
146 /* Like above but the caller must manage the uncore.lock itself.
147 * Must be used with I915_READ_FW and friends.
149 void intel_uncore_forcewake_get__locked(struct drm_i915_private
*dev_priv
,
150 enum forcewake_domains domains
);
151 void intel_uncore_forcewake_put__locked(struct drm_i915_private
*dev_priv
,
152 enum forcewake_domains domains
);
154 void intel_uncore_forcewake_user_get(struct drm_i915_private
*dev_priv
);
155 void intel_uncore_forcewake_user_put(struct drm_i915_private
*dev_priv
);
157 int intel_wait_for_register(struct drm_i915_private
*dev_priv
,
161 unsigned int timeout_ms
);
162 int __intel_wait_for_register_fw(struct drm_i915_private
*dev_priv
,
166 unsigned int fast_timeout_us
,
167 unsigned int slow_timeout_ms
,
170 int intel_wait_for_register_fw(struct drm_i915_private
*dev_priv
,
174 unsigned int timeout_ms
)
176 return __intel_wait_for_register_fw(dev_priv
, reg
, mask
, value
,
177 2, timeout_ms
, NULL
);
180 #endif /* !__INTEL_UNCORE_H__ */