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1 /*
2  * Copyright 2012-15 Advanced Micro Devices, Inc.
3  *
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:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: AMD
23  *
24  */
25 
26 #ifndef __DAL_DCHUBBUB_H__
27 #define __DAL_DCHUBBUB_H__
28 
29 
30 enum dcc_control {
31 	dcc_control__256_256_xxx,
32 	dcc_control__128_128_xxx,
33 	dcc_control__256_64_64,
34 	dcc_control__256_128_128,
35 };
36 
37 enum segment_order {
38 	segment_order__na,
39 	segment_order__contiguous,
40 	segment_order__non_contiguous,
41 };
42 
43 struct dcn_hubbub_wm_set {
44 	uint32_t wm_set;
45 	uint32_t data_urgent;
46 	uint32_t pte_meta_urgent;
47 	uint32_t sr_enter;
48 	uint32_t sr_exit;
49 	uint32_t dram_clk_chanage;
50 };
51 
52 struct dcn_hubbub_wm {
53 	struct dcn_hubbub_wm_set sets[4];
54 };
55 
56 enum dcn_hubbub_page_table_depth {
57 	DCN_PAGE_TABLE_DEPTH_1_LEVEL,
58 	DCN_PAGE_TABLE_DEPTH_2_LEVEL,
59 	DCN_PAGE_TABLE_DEPTH_3_LEVEL,
60 	DCN_PAGE_TABLE_DEPTH_4_LEVEL
61 };
62 
63 enum dcn_hubbub_page_table_block_size {
64 	DCN_PAGE_TABLE_BLOCK_SIZE_4KB = 0,
65 	DCN_PAGE_TABLE_BLOCK_SIZE_64KB = 4,
66 	DCN_PAGE_TABLE_BLOCK_SIZE_32KB = 3
67 };
68 
69 struct dcn_hubbub_phys_addr_config {
70 	struct {
71 		uint64_t fb_top;
72 		uint64_t fb_offset;
73 		uint64_t fb_base;
74 		uint64_t agp_top;
75 		uint64_t agp_bot;
76 		uint64_t agp_base;
77 	} system_aperture;
78 
79 	struct {
80 		uint64_t page_table_start_addr;
81 		uint64_t page_table_end_addr;
82 		uint64_t page_table_base_addr;
83 	} gart_config;
84 
85 	uint64_t page_table_default_page_addr;
86 };
87 
88 struct dcn_hubbub_virt_addr_config {
89 	uint64_t				page_table_start_addr;
90 	uint64_t				page_table_end_addr;
91 	enum dcn_hubbub_page_table_block_size	page_table_block_size;
92 	enum dcn_hubbub_page_table_depth	page_table_depth;
93 	uint64_t				page_table_base_addr;
94 };
95 
96 struct hubbub_addr_config {
97 	struct dcn_hubbub_phys_addr_config pa_config;
98 	struct dcn_hubbub_virt_addr_config va_config;
99 	struct {
100 		uint64_t aperture_check_fault;
101 		uint64_t generic_fault;
102 	} default_addrs;
103 };
104 
105 struct dcn_hubbub_state {
106 	uint32_t vm_fault_addr_msb;
107 	uint32_t vm_fault_addr_lsb;
108 	uint32_t vm_error_status;
109 	uint32_t vm_error_vmid;
110 	uint32_t vm_error_pipe;
111 	uint32_t vm_error_mode;
112 };
113 
114 struct hubbub_funcs {
115 	void (*update_dchub)(
116 			struct hubbub *hubbub,
117 			struct dchub_init_data *dh_data);
118 
119 	int (*init_dchub_sys_ctx)(
120 			struct hubbub *hubbub,
121 			struct dcn_hubbub_phys_addr_config *pa_config);
122 	void (*init_vm_ctx)(
123 			struct hubbub *hubbub,
124 			struct dcn_hubbub_virt_addr_config *va_config,
125 			int vmid);
126 
127 	bool (*get_dcc_compression_cap)(struct hubbub *hubbub,
128 			const struct dc_dcc_surface_param *input,
129 			struct dc_surface_dcc_cap *output);
130 
131 	bool (*dcc_support_swizzle)(
132 			enum swizzle_mode_values swizzle,
133 			unsigned int bytes_per_element,
134 			enum segment_order *segment_order_horz,
135 			enum segment_order *segment_order_vert);
136 
137 	bool (*dcc_support_pixel_format)(
138 			enum surface_pixel_format format,
139 			unsigned int *bytes_per_element);
140 
141 	void (*wm_read_state)(struct hubbub *hubbub,
142 			struct dcn_hubbub_wm *wm);
143 
144 	void (*get_dchub_ref_freq)(struct hubbub *hubbub,
145 			unsigned int dccg_ref_freq_inKhz,
146 			unsigned int *dchub_ref_freq_inKhz);
147 
148 	bool (*program_watermarks)(
149 			struct hubbub *hubbub,
150 			struct dcn_watermark_set *watermarks,
151 			unsigned int refclk_mhz,
152 			bool safe_to_lower);
153 
154 	bool (*is_allow_self_refresh_enabled)(struct hubbub *hubbub);
155 	void (*allow_self_refresh_control)(struct hubbub *hubbub, bool allow);
156 
157 	bool (*verify_allow_pstate_change_high)(struct hubbub *hubbub);
158 
159 	void (*apply_DEDCN21_147_wa)(struct hubbub *hubbub);
160 
161 	void (*force_wm_propagate_to_pipes)(struct hubbub *hubbub);
162 
163 	void (*hubbub_read_state)(struct hubbub *hubbub, struct dcn_hubbub_state *hubbub_state);
164 
165 	void (*force_pstate_change_control)(struct hubbub *hubbub, bool force, bool allow);
166 
167 	void (*init_watermarks)(struct hubbub *hubbub);
168 	void (*program_det_size)(struct hubbub *hubbub, int hubp_inst, unsigned det_buffer_size_in_kbyte);
169 	void (*program_compbuf_size)(struct hubbub *hubbub, unsigned compbuf_size_kb, bool safe_to_increase);
170 	void (*init_crb)(struct hubbub *hubbub);
171 };
172 
173 struct hubbub {
174 	const struct hubbub_funcs *funcs;
175 	struct dc_context *ctx;
176 	bool riommu_active;
177 };
178 
179 #endif
180