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09a2c74cfd
This gives us a string representation of a GPU ID. Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
102 lines
3.2 KiB
C
102 lines
3.2 KiB
C
/*
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* Copyright (C) 2019 Collabora, Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Authors:
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* Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
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*/
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#include <xf86drm.h>
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#include "util/u_math.h"
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#include "util/macros.h"
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#include "drm-uapi/panfrost_drm.h"
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#include "pan_encoder.h"
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/* Abstraction over the raw drm_panfrost_get_param ioctl for fetching
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* information about devices */
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static __u64
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panfrost_query_raw(
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int fd,
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enum drm_panfrost_param param,
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bool required,
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unsigned default_value)
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{
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struct drm_panfrost_get_param get_param = {0,};
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ASSERTED int ret;
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get_param.param = DRM_PANFROST_PARAM_GPU_PROD_ID;
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ret = drmIoctl(fd, DRM_IOCTL_PANFROST_GET_PARAM, &get_param);
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if (ret) {
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assert(!required);
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return default_value;
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}
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return get_param.value;
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}
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unsigned
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panfrost_query_gpu_version(int fd)
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{
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return panfrost_query_raw(fd, DRM_PANFROST_PARAM_GPU_PROD_ID, true, 0);
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}
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unsigned
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panfrost_query_core_count(int fd)
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{
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/* On older kernels, worst-case to 16 cores */
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unsigned mask = panfrost_query_raw(fd,
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DRM_PANFROST_PARAM_SHADER_PRESENT, false, 0xffff);
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return util_bitcount(mask);
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}
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unsigned
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panfrost_query_thread_tls_alloc(int fd)
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{
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/* On older kernels, we worst-case to 1024 threads, the architectural
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* maximum for Midgard */
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return panfrost_query_raw(fd,
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DRM_PANFROST_PARAM_THREAD_TLS_ALLOC, false, 1024);
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}
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/* Given a GPU ID like 0x860, return a prettified model name */
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const char *
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panfrost_model_name(unsigned gpu_id)
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{
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switch (gpu_id) {
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case 0x600: return "Mali T600 (Panfrost)";
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case 0x620: return "Mali T620 (Panfrost)";
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case 0x720: return "Mali T720 (Panfrost)";
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case 0x820: return "Mali T820 (Panfrost)";
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case 0x830: return "Mali T830 (Panfrost)";
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case 0x750: return "Mali T760 (Panfrost)";
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case 0x860: return "Mali T860 (Panfrost)";
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case 0x880: return "Mali T880 (Panfrost)";
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default:
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unreachable("Invalid GPU ID");
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}
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}
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