drm/tegra/firewall.c

17 static int fw_next(struct tegra_drm_firewall *fw, u32 *word)
19 	if (fw->pos == fw->end)
22 	*word = fw->data[fw->pos++];
27 static bool fw_check_addr_valid(struct tegra_drm_firewall *fw, u32 offset)
31 	for (i = 0; i < fw->submit->num_used_mappings; i++) {
32 		struct tegra_drm_mapping *m = fw->submit->used_mappings[i].mapping;
41 static int fw_check_reg(struct tegra_drm_firewall *fw, u32 offset)
47 	err = fw_next(fw, &word);
51 	if (!fw->client->ops->is_addr_reg)
54 	is_addr = fw->client->ops->is_addr_reg(fw->client->base.dev, fw->class,
60 	if (!fw_check_addr_valid(fw, word))
66 static int fw_check_regs_seq(struct tegra_drm_firewall *fw, u32 offset,
72 		if (fw_check_reg(fw, offset))
82 static int fw_check_regs_mask(struct tegra_drm_firewall *fw, u32 offset,
89 		if (fw_check_reg(fw, offset+bit))
96 static int fw_check_regs_imm(struct tegra_drm_firewall *fw, u32 offset)
100 	if (!fw->client->ops->is_addr_reg)
103 	is_addr = fw->client->ops->is_addr_reg(fw->client->base.dev, fw->class,
111 static int fw_check_class(struct tegra_drm_firewall *fw, u32 class)
113 	if (!fw->client->ops->is_valid_class) {
114 		if (class == fw->client->base.class)
120 	if (!fw->client->ops->is_valid_class(class))
148 	struct tegra_drm_firewall fw = {
160 	while (fw.pos != fw.end) {
163 		err = fw_next(&fw, &word);
174 			err = fw_check_class(&fw, class);
175 			fw.class = class;
178 				err = fw_check_regs_mask(&fw, offset, mask);
182 					 offset, mask, class, fw.pos-1);
187 			err = fw_check_regs_seq(&fw, offset, count, true);
191 					 offset, count, fw.class, fw.pos-1);
196 			err = fw_check_regs_seq(&fw, offset, count, false);
200 					 offset, count, fw.class, fw.pos-1);
205 			err = fw_check_regs_mask(&fw, offset, mask);
209 					 offset, mask, fw.class, fw.pos-1);
214 			err = fw_check_regs_imm(&fw, offset);
218 					 offset, fw.class, fw.pos-1);
229 			err = fw_check_regs_seq(&fw, offset, payload, true);
233 					 offset, fw.class, fw.pos-1);
240 			err = fw_check_regs_seq(&fw, offset, payload, false);
244 					 offset, fw.class, fw.pos-1);
248 				 fw.pos-1);