| /* |
| * Copyright (C) 2019 Collabora, Ltd. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| * |
| * Authors: |
| * Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> |
| */ |
| |
| #include <xf86drm.h> |
| |
| #include "util/u_math.h" |
| #include "util/macros.h" |
| #include "drm-uapi/panfrost_drm.h" |
| #include "pan_encoder.h" |
| |
| /* Abstraction over the raw drm_panfrost_get_param ioctl for fetching |
| * information about devices */ |
| |
| static __u64 |
| panfrost_query_raw( |
| int fd, |
| enum drm_panfrost_param param, |
| bool required, |
| unsigned default_value) |
| { |
| struct drm_panfrost_get_param get_param = {0,}; |
| ASSERTED int ret; |
| |
| get_param.param = DRM_PANFROST_PARAM_GPU_PROD_ID; |
| ret = drmIoctl(fd, DRM_IOCTL_PANFROST_GET_PARAM, &get_param); |
| |
| if (ret) { |
| assert(!required); |
| return default_value; |
| } |
| |
| return get_param.value; |
| } |
| |
| unsigned |
| panfrost_query_gpu_version(int fd) |
| { |
| return panfrost_query_raw(fd, DRM_PANFROST_PARAM_GPU_PROD_ID, true, 0); |
| } |
| |
| unsigned |
| panfrost_query_core_count(int fd) |
| { |
| /* On older kernels, worst-case to 16 cores */ |
| |
| unsigned mask = panfrost_query_raw(fd, |
| DRM_PANFROST_PARAM_SHADER_PRESENT, false, 0xffff); |
| |
| return util_bitcount(mask); |
| } |
| |
| unsigned |
| panfrost_query_thread_tls_alloc(int fd) |
| { |
| /* On older kernels, we worst-case to 1024 threads, the architectural |
| * maximum for Midgard */ |
| |
| return panfrost_query_raw(fd, |
| DRM_PANFROST_PARAM_THREAD_TLS_ALLOC, false, 1024); |
| } |
| |
| /* Given a GPU ID like 0x860, return a prettified model name */ |
| |
| const char * |
| panfrost_model_name(unsigned gpu_id) |
| { |
| switch (gpu_id) { |
| case 0x600: return "Mali T600 (Panfrost)"; |
| case 0x620: return "Mali T620 (Panfrost)"; |
| case 0x720: return "Mali T720 (Panfrost)"; |
| case 0x820: return "Mali T820 (Panfrost)"; |
| case 0x830: return "Mali T830 (Panfrost)"; |
| case 0x750: return "Mali T760 (Panfrost)"; |
| case 0x860: return "Mali T860 (Panfrost)"; |
| case 0x880: return "Mali T880 (Panfrost)"; |
| default: |
| unreachable("Invalid GPU ID"); |
| } |
| } |