1 /* 2 * Copyright © 2022 Imagination Technologies Ltd. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a copy 5 * of this software and associated documentation files (the "Software"), to deal 6 * in the Software without restriction, including without limitation the rights 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 8 * copies of the Software, and to permit persons to whom the Software is 9 * furnished to do so, subject to the following conditions: 10 * 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 13 * Software. 14 * 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 THE 18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 * SOFTWARE. 22 */ 23 24 /* This file is based on rgx_fwif_shared.h and rgx_fwif_client.h. It contains 25 * information about the firmware that is needed by the driver. 26 */ 27 28 #ifndef PVR_ROGUE_FW_H 29 #define PVR_ROGUE_FW_H 30 31 /** 32 * Maximum PB free list size supported by RGX and Services. 33 * 34 * Maximum PB free list size must ensure that no PM address space can be fully 35 * used, because if the full address space was used it would wrap and corrupt 36 * itself. Since there are two freelists (local is always minimum sized) this 37 * can be described as following three conditions being met: 38 * 39 * Minimum PB + Maximum PB < ALIST PM address space size (16GB) 40 * Minimum PB + Maximum PB < TE PM address space size (16GB) / NUM_TE_PIPES 41 * Minimum PB + Maximum PB < VCE PM address space size (16GB) / NUM_VCE_PIPES 42 * 43 * Since the max of NUM_TE_PIPES and NUM_VCE_PIPES is 4, we have a hard limit 44 * of 4GB minus the Minimum PB. For convenience we take the smaller power-of-2 45 * value of 2GB. This is far more than any normal application would request 46 * or use. 47 */ 48 #define ROGUE_FREE_LIST_MAX_SIZE (2ULL * 1024ULL * 1024ULL * 1024ULL) 49 50 /* FIXME: This will change based on the firmware configuration, which will vary 51 * depending on the BVNC and firmware version. The powervr KM driver allows this 52 * information to be queried, but the pvrsrvkm KM driver doesn't. This 53 * information should really be queried from the winsys. 54 */ 55 /* Indicates the number of Render Target Datas in a Render Target Dataset. */ 56 #define ROGUE_NUM_RTDATAS 2U 57 58 #endif /* PVR_ROGUE_FW_H */ 59