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author | Jack Diver <diverj@google.com> | 2022-09-02 11:38:04 +0000 |
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committer | Jack Diver <diverj@google.com> | 2022-09-02 14:33:02 +0000 |
commit | c30533582604fe0365bc3ce4e9e8e19dec3109da (patch) | |
tree | 2dc4d074c820b535e9f18b8cd81d7e91bff042e5 /mali_kbase/mali_kbase_debug_mem_zones.c | |
parent | 88d7d984fed1c2a4358ce2bbc334e82d71e3a391 (diff) | |
download | gpu-c30533582604fe0365bc3ce4e9e8e19dec3109da.tar.gz |
Mali Valhall Android DDK r38p1-01eac0
VX504X08X-BU-00000-r38p1-01eac0 - Valhall Android DDK
VX504X08X-BU-60000-r38p1-01eac0 - Valhall Android Document Bundle
VX504X08X-DC-11001-r38p1-01eac0 - Valhall Android DDK Software Errata
VX504X08X-SW-99006-r38p1-01eac0 - Valhall Android Renderscript AOSP parts
Signed-off-by: Jack Diver <diverj@google.com>
Change-Id: I242060ad8ddc14475bda657cbbbe6b6c26ecfd57
Diffstat (limited to 'mali_kbase/mali_kbase_debug_mem_zones.c')
-rw-r--r-- | mali_kbase/mali_kbase_debug_mem_zones.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/mali_kbase/mali_kbase_debug_mem_zones.c b/mali_kbase/mali_kbase_debug_mem_zones.c new file mode 100644 index 0000000..1f8db32 --- /dev/null +++ b/mali_kbase/mali_kbase_debug_mem_zones.c @@ -0,0 +1,116 @@ +// SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note +/* + * + * (C) COPYRIGHT 2022 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation, and any use by you of this program is subject to the terms + * of such GNU license. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, you can access it online at + * http://www.gnu.org/licenses/gpl-2.0.html. + * + */ + +/* + * Debugfs interface to dump information about GPU_VA memory zones + */ + +#include "mali_kbase_debug_mem_zones.h" +#include "mali_kbase.h" + +#include <linux/list.h> +#include <linux/file.h> + +#if IS_ENABLED(CONFIG_DEBUG_FS) + +/** + * debug_mem_zones_show - Show information about GPU_VA memory zones + * @sfile: The debugfs entry + * @data: Data associated with the entry + * + * This function is called to get the contents of the @c mem_zones debugfs file. + * This lists the start address and size (in pages) of each initialized memory + * zone within GPU_VA memory. + * + * Return: + * 0 if successfully prints data in debugfs entry file + * -1 if it encountered an error + */ +static int debug_mem_zones_show(struct seq_file *sfile, void *data) +{ + struct kbase_context *const kctx = sfile->private; + size_t i; + + const char *zone_names[KBASE_REG_ZONE_MAX] = { + "SAME_VA", + "CUSTOM_VA", + "EXEC_VA" +#if MALI_USE_CSF + , + "MCU_SHARED_VA", + "EXEC_FIXED_VA", + "FIXED_VA" +#endif + }; + + kbase_gpu_vm_lock(kctx); + + for (i = 0; i < KBASE_REG_ZONE_MAX; i++) { + struct kbase_reg_zone *reg_zone = &kctx->reg_zone[i]; + + if (reg_zone->base_pfn) { + seq_printf(sfile, "%15s %zu 0x%.16llx 0x%.16llx\n", zone_names[i], i, + reg_zone->base_pfn, reg_zone->va_size_pages); + } + } + + kbase_gpu_vm_unlock(kctx); + return 0; +} + +/* + * File operations related to debugfs entry for mem_zones + */ +static int debug_mem_zones_open(struct inode *in, struct file *file) +{ + return single_open(file, debug_mem_zones_show, in->i_private); +} + +static const struct file_operations kbase_debug_mem_zones_fops = { + .owner = THIS_MODULE, + .open = debug_mem_zones_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +/* + * Initialize debugfs entry for mem_zones + */ +void kbase_debug_mem_zones_init(struct kbase_context *const kctx) +{ + /* Caller already ensures this, but we keep the pattern for + * maintenance safety. + */ + if (WARN_ON(!kctx) || WARN_ON(IS_ERR_OR_NULL(kctx->kctx_dentry))) + return; + + debugfs_create_file("mem_zones", 0400, kctx->kctx_dentry, kctx, + &kbase_debug_mem_zones_fops); +} +#else +/* + * Stub functions for when debugfs is disabled + */ +void kbase_debug_mem_zones_init(struct kbase_context *const kctx) +{ +} +#endif |