+++ /dev/null
-/*
- * 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 "util/hash_table.h"
-#include "util/u_thread.h"
-#include "drm-uapi/panfrost_drm.h"
-#include "pan_encoder.h"
-#include "pan_device.h"
-#include "panfrost-quirks.h"
-#include "pan_bo.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 = param;
- 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 256 threads, the architectural
- * maximum for Midgard. On my current kernel/hardware, I'm seeing this
- * readback as 0, so we'll worst-case there too */
-
- unsigned tls = panfrost_query_raw(fd,
- DRM_PANFROST_PARAM_THREAD_TLS_ALLOC, false, 256);
-
- if (tls)
- return tls;
- else
- return 256;
-}
-
-static uint32_t
-panfrost_query_compressed_formats(int fd)
-{
- /* If unspecified, assume ASTC/ETC only. Factory default for Juno, and
- * should exist on any Mali configuration. All hardware should report
- * these texture formats but the kernel might not be new enough. */
-
- uint32_t default_set =
- (1 << MALI_ETC2_RGB8) |
- (1 << MALI_ETC2_R11_UNORM) |
- (1 << MALI_ETC2_RGBA8) |
- (1 << MALI_ETC2_RG11_UNORM) |
- (1 << MALI_ETC2_R11_SNORM) |
- (1 << MALI_ETC2_RG11_SNORM) |
- (1 << MALI_ETC2_RGB8A1) |
- (1 << MALI_ASTC_3D_LDR) |
- (1 << MALI_ASTC_3D_HDR) |
- (1 << MALI_ASTC_2D_LDR) |
- (1 << MALI_ASTC_2D_HDR);
-
- return panfrost_query_raw(fd, DRM_PANFROST_PARAM_TEXTURE_FEATURES0,
- false, default_set);
-}
-
-/* DRM_PANFROST_PARAM_TEXTURE_FEATURES0 will return a bitmask of supported
- * compressed formats, so we offer a helper to test if a format is supported */
-
-bool
-panfrost_supports_compressed_format(struct panfrost_device *dev, unsigned fmt)
-{
- if (MALI_EXTRACT_TYPE(fmt) != MALI_FORMAT_COMPRESSED)
- return true;
-
- unsigned idx = fmt & ~MALI_FORMAT_COMPRESSED;
- assert(idx < 32);
-
- return dev->compressed_formats & (1 << idx);
-}
-
-/* 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)";
- case 0x7093: return "Mali G31 (Panfrost)";
- case 0x7212: return "Mali G52 (Panfrost)";
- default:
- unreachable("Invalid GPU ID");
- }
-}
-
-void
-panfrost_open_device(void *memctx, int fd, struct panfrost_device *dev)
-{
- dev->fd = fd;
- dev->memctx = memctx;
- dev->gpu_id = panfrost_query_gpu_version(fd);
- dev->core_count = panfrost_query_core_count(fd);
- dev->thread_tls_alloc = panfrost_query_thread_tls_alloc(fd);
- dev->kernel_version = drmGetVersion(fd);
- dev->quirks = panfrost_get_quirks(dev->gpu_id);
- dev->compressed_formats = panfrost_query_compressed_formats(fd);
-
- util_sparse_array_init(&dev->bo_map, sizeof(struct panfrost_bo), 512);
-
- pthread_mutex_init(&dev->bo_cache.lock, NULL);
- list_inithead(&dev->bo_cache.lru);
-
- for (unsigned i = 0; i < ARRAY_SIZE(dev->bo_cache.buckets); ++i)
- list_inithead(&dev->bo_cache.buckets[i]);
-}
-
-void
-panfrost_close_device(struct panfrost_device *dev)
-{
- panfrost_bo_unreference(dev->blit_shaders.bo);
- panfrost_bo_cache_evict_all(dev);
- pthread_mutex_destroy(&dev->bo_cache.lock);
- drmFreeVersion(dev->kernel_version);
- util_sparse_array_finish(&dev->bo_map);
-
-}
projects / mesa.git / blobdiff