1// SPDX-License-Identifier: GPL-2.0-only OR MIT
2/* Copyright (c) 2023 Imagination Technologies Ltd. */
3
4#include "pvr_device.h"
5#include "pvr_device_info.h"
6#include "pvr_rogue_fwif_dev_info.h"
7
8#include <drm/drm_print.h>
9
10#include <linux/bits.h>
11#include <linux/minmax.h>
12#include <linux/stddef.h>
13#include <linux/types.h>
14
15#define QUIRK_MAPPING(quirk) \
16 [PVR_FW_HAS_BRN_##quirk] = offsetof(struct pvr_device, quirks.has_brn##quirk)
17
18static const uintptr_t quirks_mapping[] = {
19 QUIRK_MAPPING(44079),
20 QUIRK_MAPPING(47217),
21 QUIRK_MAPPING(48492),
22 QUIRK_MAPPING(48545),
23 QUIRK_MAPPING(49927),
24 QUIRK_MAPPING(50767),
25 QUIRK_MAPPING(51764),
26 QUIRK_MAPPING(62269),
27 QUIRK_MAPPING(63142),
28 QUIRK_MAPPING(63553),
29 QUIRK_MAPPING(66011),
30 QUIRK_MAPPING(71242),
31};
32
33#undef QUIRK_MAPPING
34
35#define ENHANCEMENT_MAPPING(enhancement) \
36 [PVR_FW_HAS_ERN_##enhancement] = offsetof(struct pvr_device, \
37 enhancements.has_ern##enhancement)
38
39static const uintptr_t enhancements_mapping[] = {
40 ENHANCEMENT_MAPPING(35421),
41 ENHANCEMENT_MAPPING(38020),
42 ENHANCEMENT_MAPPING(38748),
43 ENHANCEMENT_MAPPING(42064),
44 ENHANCEMENT_MAPPING(42290),
45 ENHANCEMENT_MAPPING(42606),
46 ENHANCEMENT_MAPPING(47025),
47 ENHANCEMENT_MAPPING(57596),
48};
49
50#undef ENHANCEMENT_MAPPING
51
52static void pvr_device_info_set_common(struct pvr_device *pvr_dev, const u64 *bitmask,
53 u32 bitmask_size, const uintptr_t *mapping, u32 mapping_max)
54{
55 const u32 mapping_max_size = (mapping_max + 63) >> 6;
56 const u32 nr_bits = min(bitmask_size * 64, mapping_max);
57
58 /* Warn if any unsupported values in the bitmask. */
59 if (bitmask_size > mapping_max_size) {
60 if (mapping == quirks_mapping)
61 drm_warn(from_pvr_device(pvr_dev), "Unsupported quirks in firmware image");
62 else
63 drm_warn(from_pvr_device(pvr_dev),
64 "Unsupported enhancements in firmware image");
65 } else if (bitmask_size == mapping_max_size && (mapping_max & 63)) {
66 u64 invalid_mask = ~0ull << (mapping_max & 63);
67
68 if (bitmask[bitmask_size - 1] & invalid_mask) {
69 if (mapping == quirks_mapping)
70 drm_warn(from_pvr_device(pvr_dev),
71 "Unsupported quirks in firmware image");
72 else
73 drm_warn(from_pvr_device(pvr_dev),
74 "Unsupported enhancements in firmware image");
75 }
76 }
77
78 for (u32 i = 0; i < nr_bits; i++) {
79 if (bitmask[i >> 6] & BIT_ULL(i & 63))
80 *(bool *)((u8 *)pvr_dev + mapping[i]) = true;
81 }
82}
83
84/**
85 * pvr_device_info_set_quirks() - Set device quirks from device information in firmware
86 * @pvr_dev: Device pointer.
87 * @quirks: Pointer to quirks mask in device information.
88 * @quirks_size: Size of quirks mask, in u64s.
89 */
90void pvr_device_info_set_quirks(struct pvr_device *pvr_dev, const u64 *quirks, u32 quirks_size)
91{
92 BUILD_BUG_ON(ARRAY_SIZE(quirks_mapping) != PVR_FW_HAS_BRN_MAX);
93
94 pvr_device_info_set_common(pvr_dev, bitmask: quirks, bitmask_size: quirks_size, mapping: quirks_mapping,
95 ARRAY_SIZE(quirks_mapping));
96}
97
98/**
99 * pvr_device_info_set_enhancements() - Set device enhancements from device information in firmware
100 * @pvr_dev: Device pointer.
101 * @enhancements: Pointer to enhancements mask in device information.
102 * @enhancements_size: Size of enhancements mask, in u64s.
103 */
104void pvr_device_info_set_enhancements(struct pvr_device *pvr_dev, const u64 *enhancements,
105 u32 enhancements_size)
106{
107 BUILD_BUG_ON(ARRAY_SIZE(enhancements_mapping) != PVR_FW_HAS_ERN_MAX);
108
109 pvr_device_info_set_common(pvr_dev, bitmask: enhancements, bitmask_size: enhancements_size,
110 mapping: enhancements_mapping, ARRAY_SIZE(enhancements_mapping));
111}
112
113#define FEATURE_MAPPING(fw_feature, feature) \
114 [PVR_FW_HAS_FEATURE_##fw_feature] = { \
115 .flag_offset = offsetof(struct pvr_device, features.has_##feature), \
116 .value_offset = 0 \
117 }
118
119#define FEATURE_MAPPING_VALUE(fw_feature, feature) \
120 [PVR_FW_HAS_FEATURE_##fw_feature] = { \
121 .flag_offset = offsetof(struct pvr_device, features.has_##feature), \
122 .value_offset = offsetof(struct pvr_device, features.feature) \
123 }
124
125static const struct {
126 uintptr_t flag_offset;
127 uintptr_t value_offset;
128} features_mapping[] = {
129 FEATURE_MAPPING(AXI_ACELITE, axi_acelite),
130 FEATURE_MAPPING_VALUE(CDM_CONTROL_STREAM_FORMAT, cdm_control_stream_format),
131 FEATURE_MAPPING(CLUSTER_GROUPING, cluster_grouping),
132 FEATURE_MAPPING_VALUE(COMMON_STORE_SIZE_IN_DWORDS, common_store_size_in_dwords),
133 FEATURE_MAPPING(COMPUTE, compute),
134 FEATURE_MAPPING(COMPUTE_MORTON_CAPABLE, compute_morton_capable),
135 FEATURE_MAPPING(COMPUTE_OVERLAP, compute_overlap),
136 FEATURE_MAPPING(COREID_PER_OS, coreid_per_os),
137 FEATURE_MAPPING(DYNAMIC_DUST_POWER, dynamic_dust_power),
138 FEATURE_MAPPING_VALUE(ECC_RAMS, ecc_rams),
139 FEATURE_MAPPING_VALUE(FBCDC, fbcdc),
140 FEATURE_MAPPING_VALUE(FBCDC_ALGORITHM, fbcdc_algorithm),
141 FEATURE_MAPPING_VALUE(FBCDC_ARCHITECTURE, fbcdc_architecture),
142 FEATURE_MAPPING_VALUE(FBC_MAX_DEFAULT_DESCRIPTORS, fbc_max_default_descriptors),
143 FEATURE_MAPPING_VALUE(FBC_MAX_LARGE_DESCRIPTORS, fbc_max_large_descriptors),
144 FEATURE_MAPPING(FB_CDC_V4, fb_cdc_v4),
145 FEATURE_MAPPING(GPU_MULTICORE_SUPPORT, gpu_multicore_support),
146 FEATURE_MAPPING(GPU_VIRTUALISATION, gpu_virtualisation),
147 FEATURE_MAPPING(GS_RTA_SUPPORT, gs_rta_support),
148 FEATURE_MAPPING(IRQ_PER_OS, irq_per_os),
149 FEATURE_MAPPING_VALUE(ISP_MAX_TILES_IN_FLIGHT, isp_max_tiles_in_flight),
150 FEATURE_MAPPING_VALUE(ISP_SAMPLES_PER_PIXEL, isp_samples_per_pixel),
151 FEATURE_MAPPING(ISP_ZLS_D24_S8_PACKING_OGL_MODE, isp_zls_d24_s8_packing_ogl_mode),
152 FEATURE_MAPPING_VALUE(LAYOUT_MARS, layout_mars),
153 FEATURE_MAPPING_VALUE(MAX_PARTITIONS, max_partitions),
154 FEATURE_MAPPING_VALUE(META, meta),
155 FEATURE_MAPPING_VALUE(META_COREMEM_SIZE, meta_coremem_size),
156 FEATURE_MAPPING(MIPS, mips),
157 FEATURE_MAPPING_VALUE(NUM_CLUSTERS, num_clusters),
158 FEATURE_MAPPING_VALUE(NUM_ISP_IPP_PIPES, num_isp_ipp_pipes),
159 FEATURE_MAPPING_VALUE(NUM_OSIDS, num_osids),
160 FEATURE_MAPPING_VALUE(NUM_RASTER_PIPES, num_raster_pipes),
161 FEATURE_MAPPING(PBE2_IN_XE, pbe2_in_xe),
162 FEATURE_MAPPING(PBVNC_COREID_REG, pbvnc_coreid_reg),
163 FEATURE_MAPPING(PERFBUS, perfbus),
164 FEATURE_MAPPING(PERF_COUNTER_BATCH, perf_counter_batch),
165 FEATURE_MAPPING_VALUE(PHYS_BUS_WIDTH, phys_bus_width),
166 FEATURE_MAPPING(RISCV_FW_PROCESSOR, riscv_fw_processor),
167 FEATURE_MAPPING(ROGUEXE, roguexe),
168 FEATURE_MAPPING(S7_TOP_INFRASTRUCTURE, s7_top_infrastructure),
169 FEATURE_MAPPING(SIMPLE_INTERNAL_PARAMETER_FORMAT, simple_internal_parameter_format),
170 FEATURE_MAPPING(SIMPLE_INTERNAL_PARAMETER_FORMAT_V2, simple_internal_parameter_format_v2),
171 FEATURE_MAPPING_VALUE(SIMPLE_PARAMETER_FORMAT_VERSION, simple_parameter_format_version),
172 FEATURE_MAPPING_VALUE(SLC_BANKS, slc_banks),
173 FEATURE_MAPPING_VALUE(SLC_CACHE_LINE_SIZE_BITS, slc_cache_line_size_bits),
174 FEATURE_MAPPING(SLC_SIZE_CONFIGURABLE, slc_size_configurable),
175 FEATURE_MAPPING_VALUE(SLC_SIZE_IN_KILOBYTES, slc_size_in_kilobytes),
176 FEATURE_MAPPING(SOC_TIMER, soc_timer),
177 FEATURE_MAPPING(SYS_BUS_SECURE_RESET, sys_bus_secure_reset),
178 FEATURE_MAPPING(TESSELLATION, tessellation),
179 FEATURE_MAPPING(TILE_REGION_PROTECTION, tile_region_protection),
180 FEATURE_MAPPING_VALUE(TILE_SIZE_X, tile_size_x),
181 FEATURE_MAPPING_VALUE(TILE_SIZE_Y, tile_size_y),
182 FEATURE_MAPPING(TLA, tla),
183 FEATURE_MAPPING(TPU_CEM_DATAMASTER_GLOBAL_REGISTERS, tpu_cem_datamaster_global_registers),
184 FEATURE_MAPPING(TPU_DM_GLOBAL_REGISTERS, tpu_dm_global_registers),
185 FEATURE_MAPPING(TPU_FILTERING_MODE_CONTROL, tpu_filtering_mode_control),
186 FEATURE_MAPPING_VALUE(USC_MIN_OUTPUT_REGISTERS_PER_PIX, usc_min_output_registers_per_pix),
187 FEATURE_MAPPING(VDM_DRAWINDIRECT, vdm_drawindirect),
188 FEATURE_MAPPING(VDM_OBJECT_LEVEL_LLS, vdm_object_level_lls),
189 FEATURE_MAPPING_VALUE(VIRTUAL_ADDRESS_SPACE_BITS, virtual_address_space_bits),
190 FEATURE_MAPPING(WATCHDOG_TIMER, watchdog_timer),
191 FEATURE_MAPPING(WORKGROUP_PROTECTION, workgroup_protection),
192 FEATURE_MAPPING_VALUE(XE_ARCHITECTURE, xe_architecture),
193 FEATURE_MAPPING(XE_MEMORY_HIERARCHY, xe_memory_hierarchy),
194 FEATURE_MAPPING(XE_TPU2, xe_tpu2),
195 FEATURE_MAPPING_VALUE(XPU_MAX_REGBANKS_ADDR_WIDTH, xpu_max_regbanks_addr_width),
196 FEATURE_MAPPING_VALUE(XPU_MAX_SLAVES, xpu_max_slaves),
197 FEATURE_MAPPING_VALUE(XPU_REGISTER_BROADCAST, xpu_register_broadcast),
198 FEATURE_MAPPING(XT_TOP_INFRASTRUCTURE, xt_top_infrastructure),
199 FEATURE_MAPPING(ZLS_SUBTILE, zls_subtile),
200};
201
202#undef FEATURE_MAPPING_VALUE
203#undef FEATURE_MAPPING
204
205/**
206 * pvr_device_info_set_features() - Set device features from device information in firmware
207 * @pvr_dev: Device pointer.
208 * @features: Pointer to features mask in device information.
209 * @features_size: Size of features mask, in u64s.
210 * @feature_param_size: Size of feature parameters, in u64s.
211 *
212 * Returns:
213 * * 0 on success, or
214 * * -%EINVAL on malformed stream.
215 */
216int pvr_device_info_set_features(struct pvr_device *pvr_dev, const u64 *features, u32 features_size,
217 u32 feature_param_size)
218{
219 const u32 mapping_max = ARRAY_SIZE(features_mapping);
220 const u32 mapping_max_size = (mapping_max + 63) >> 6;
221 const u32 nr_bits = min(features_size * 64, mapping_max);
222 const u64 *feature_params = features + features_size;
223 u32 param_idx = 0;
224
225 BUILD_BUG_ON(ARRAY_SIZE(features_mapping) != PVR_FW_HAS_FEATURE_MAX);
226
227 /* Verify no unsupported values in the bitmask. */
228 if (features_size > mapping_max_size) {
229 drm_warn(from_pvr_device(pvr_dev), "Unsupported features in firmware image");
230 } else if (features_size == mapping_max_size &&
231 ((mapping_max & 63) != 0)) {
232 u64 invalid_mask = ~0ull << (mapping_max & 63);
233
234 if (features[features_size - 1] & invalid_mask)
235 drm_warn(from_pvr_device(pvr_dev),
236 "Unsupported features in firmware image");
237 }
238
239 for (u32 i = 0; i < nr_bits; i++) {
240 if (features[i >> 6] & BIT_ULL(i & 63)) {
241 *(bool *)((u8 *)pvr_dev + features_mapping[i].flag_offset) = true;
242
243 if (features_mapping[i].value_offset) {
244 if (param_idx >= feature_param_size)
245 return -EINVAL;
246
247 *(u64 *)((u8 *)pvr_dev + features_mapping[i].value_offset) =
248 feature_params[param_idx];
249 param_idx++;
250 }
251 }
252 }
253
254 return 0;
255}
256

source code of linux/drivers/gpu/drm/imagination/pvr_device_info.c