1 // SPDX-License-Identifier: MIT
3  * Copyright © 2017-2019 Intel Corporation
26  *    |    Size   +--------------------+
28  *    |     |     +--------------------+
30  *    |     |     +------------------- +
34  *    |           +------------------- + <== HuC Firmware Top
73  * intel_wopcm_init_early() - Early initialization of the WOPCM.
86 		wopcm->size = GEN11_WOPCM_SIZE;  in intel_wopcm_init_early()
88 		wopcm->size = GEN9_WOPCM_SIZE;  in intel_wopcm_init_early()
90 	drm_dbg(&i915->drm, "WOPCM: %uK\n", wopcm->size / 1024);  in intel_wopcm_init_early()
115 	    (guc_wopcm_size - offset) < sizeof(u32)) {  in gen9_check_dword_gap()
116 		drm_err(&i915->drm,  in gen9_check_dword_gap()
134 	if (huc_fw_size > guc_wopcm_size - GUC_WOPCM_RESERVED) {  in gen9_check_huc_fw_fits()
135 		drm_err(&i915->drm, "WOPCM: no space for %s: %uK < %uK\n",  in gen9_check_huc_fw_fits()
137 			(guc_wopcm_size - GUC_WOPCM_RESERVED) / SZ_1K,  in gen9_check_huc_fw_fits()
167 	size = wopcm_size - ctx_rsvd;  in __check_layout()
169 		drm_err(&i915->drm,  in __check_layout()
178 		drm_err(&i915->drm, "WOPCM: no space for %s: %uK < %uK\n",  in __check_layout()
186 		drm_err(&i915->drm, "WOPCM: no space for %s: %uK < %uK\n",  in __check_layout()
213 	if (!HAS_GUC_DEPRIVILEGE(uncore->i915))  in __wopcm_regs_writable()
220  * intel_wopcm_init() - Initialize the WOPCM structure.
233 	u32 guc_fw_size = intel_uc_fw_get_upload_size(&gt->uc.guc.fw);  in intel_wopcm_init()
234 	u32 huc_fw_size = intel_uc_fw_get_upload_size(&gt->uc.huc.fw);  in intel_wopcm_init()
236 	u32 wopcm_size = wopcm->size;  in intel_wopcm_init()
244 	GEM_BUG_ON(wopcm->guc.base);  in intel_wopcm_init()
245 	GEM_BUG_ON(wopcm->guc.size);  in intel_wopcm_init()
253 	if (__wopcm_regs_locked(gt->uncore, &guc_wopcm_base, &guc_wopcm_size)) {  in intel_wopcm_init()
254 		drm_dbg(&i915->drm, "GuC WOPCM is already locked [%uK, %uK)\n",  in intel_wopcm_init()
260 		 * This is perfectly fine when i915 programs the registers, but  in intel_wopcm_init()
262 		 * writable from i915 and are instead pre-programmed by the  in intel_wopcm_init()
268 		 * were pre-programmed with an invalid value, we will still  in intel_wopcm_init()
271 		if (!__wopcm_regs_writable(gt->uncore))  in intel_wopcm_init()
288 	guc_wopcm_base = min(guc_wopcm_base, wopcm_size - ctx_rsvd);  in intel_wopcm_init()
291 	guc_wopcm_size = wopcm_size - ctx_rsvd - guc_wopcm_base;  in intel_wopcm_init()
294 	drm_dbg(&i915->drm, "Calculated GuC WOPCM [%uK, %uK)\n",  in intel_wopcm_init()
300 		wopcm->guc.base = guc_wopcm_base;  in intel_wopcm_init()
301 		wopcm->guc.size = guc_wopcm_size;  in intel_wopcm_init()
302 		GEM_BUG_ON(!wopcm->guc.base);  in intel_wopcm_init()
303 		GEM_BUG_ON(!wopcm->guc.size);  in intel_wopcm_init()