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nest-open-source / manifest_repos / mali-driver / f195aa6e0fc5ace54e419c4367fe304c26a00f07 / . / bifrost / r38p2 / kernel / drivers / gpu / arm / midgard / csf / mali_kbase_csf_firmware.c
blob: 0631540cfec8f0c6a81d88052a144a6e822f1009 [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
/*
*
* (C) COPYRIGHT 2018-2022 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.
*
*/
#include "mali_kbase.h"
#include "mali_kbase_csf_firmware_cfg.h"
#include "mali_kbase_csf_firmware_log.h"
#include "mali_kbase_csf_trace_buffer.h"
#include "mali_kbase_csf_timeout.h"
#include "mali_kbase_mem.h"
#include "mali_kbase_mem_pool_group.h"
#include "mali_kbase_reset_gpu.h"
#include "mali_kbase_ctx_sched.h"
#include "mali_kbase_csf_scheduler.h"
#include <mali_kbase_hwaccess_time.h>
#include "device/mali_kbase_device.h"
#include "backend/gpu/mali_kbase_pm_internal.h"
#include "tl/mali_kbase_timeline_priv.h"
#include "tl/mali_kbase_tracepoints.h"
#include "mali_kbase_csf_tl_reader.h"
#include "backend/gpu/mali_kbase_clk_rate_trace_mgr.h"
#include <csf/ipa_control/mali_kbase_csf_ipa_control.h>
#include <csf/mali_kbase_csf_registers.h>
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/firmware.h>
#include <linux/mman.h>
#include <linux/string.h>
#include <linux/mutex.h>
#include <linux/ctype.h>
#if (KERNEL_VERSION(4, 13, 0) <= LINUX_VERSION_CODE)
#include <linux/set_memory.h>
#endif
#include <mmu/mali_kbase_mmu.h>
#include <asm/arch_timer.h>
#include <linux/delay.h>
#define MALI_MAX_FIRMWARE_NAME_LEN ((size_t)20)
static char fw_name[MALI_MAX_FIRMWARE_NAME_LEN] = "mali_csffw.bin";
module_param_string(fw_name, fw_name, sizeof(fw_name), 0644);
MODULE_PARM_DESC(fw_name, "firmware image");
/* The waiting time for firmware to boot */
static unsigned int csf_firmware_boot_timeout_ms;
module_param(csf_firmware_boot_timeout_ms, uint, 0444);
MODULE_PARM_DESC(csf_firmware_boot_timeout_ms,
"Maximum time to wait for firmware to boot.");
#ifdef CONFIG_MALI_DEBUG
/* Makes Driver wait indefinitely for an acknowledgment for the different
* requests it sends to firmware. Otherwise the timeouts interfere with the
* use of debugger for source-level debugging of firmware as Driver initiates
* a GPU reset when a request times out, which always happen when a debugger
* is connected.
*/
bool fw_debug; /* Default value of 0/false */
module_param(fw_debug, bool, 0444);
MODULE_PARM_DESC(fw_debug,
"Enables effective use of a debugger for debugging firmware code.");
#endif
#define FIRMWARE_HEADER_MAGIC (0xC3F13A6Eul)
#define FIRMWARE_HEADER_VERSION (0ul)
#define FIRMWARE_HEADER_LENGTH (0x14ul)
#define CSF_FIRMWARE_ENTRY_SUPPORTED_FLAGS \
(CSF_FIRMWARE_ENTRY_READ | \
CSF_FIRMWARE_ENTRY_WRITE | \
CSF_FIRMWARE_ENTRY_EXECUTE | \
CSF_FIRMWARE_ENTRY_PROTECTED | \
CSF_FIRMWARE_ENTRY_SHARED | \
CSF_FIRMWARE_ENTRY_ZERO | \
CSF_FIRMWARE_ENTRY_CACHE_MODE)
#define CSF_FIRMWARE_ENTRY_TYPE_INTERFACE (0)
#define CSF_FIRMWARE_ENTRY_TYPE_CONFIGURATION (1)
#define CSF_FIRMWARE_ENTRY_TYPE_FUTF_TEST (2)
#define CSF_FIRMWARE_ENTRY_TYPE_TRACE_BUFFER (3)
#define CSF_FIRMWARE_ENTRY_TYPE_TIMELINE_METADATA (4)
#define CSF_FIRMWARE_ENTRY_TYPE_BUILD_INFO_METADATA (6)
#define CSF_FIRMWARE_CACHE_MODE_NONE (0ul << 3)
#define CSF_FIRMWARE_CACHE_MODE_CACHED (1ul << 3)
#define CSF_FIRMWARE_CACHE_MODE_UNCACHED_COHERENT (2ul << 3)
#define CSF_FIRMWARE_CACHE_MODE_CACHED_COHERENT (3ul << 3)
#define INTERFACE_ENTRY_NAME_OFFSET (0x14)
#define TL_METADATA_ENTRY_NAME_OFFSET (0x8)
#define BUILD_INFO_METADATA_SIZE_OFFSET (0x4)
#define BUILD_INFO_GIT_SHA_LEN (40U)
#define BUILD_INFO_GIT_DIRTY_LEN (1U)
#define BUILD_INFO_GIT_SHA_PATTERN "git_sha: "
#define CSF_MAX_FW_STOP_LOOPS (100000)
#define CSF_GLB_REQ_CFG_MASK \
(GLB_REQ_CFG_ALLOC_EN_MASK | GLB_REQ_CFG_PROGRESS_TIMER_MASK | \
GLB_REQ_CFG_PWROFF_TIMER_MASK | GLB_REQ_IDLE_ENABLE_MASK)
static inline u32 input_page_read(const u32 *const input, const u32 offset)
{
WARN_ON(offset % sizeof(u32));
return input[offset / sizeof(u32)];
}
static inline void input_page_write(u32 *const input, const u32 offset,
const u32 value)
{
WARN_ON(offset % sizeof(u32));
input[offset / sizeof(u32)] = value;
}
static inline void input_page_partial_write(u32 *const input, const u32 offset,
u32 value, u32 mask)
{
WARN_ON(offset % sizeof(u32));
input[offset / sizeof(u32)] =
(input_page_read(input, offset) & ~mask) | (value & mask);
}
static inline u32 output_page_read(const u32 *const output, const u32 offset)
{
WARN_ON(offset % sizeof(u32));
return output[offset / sizeof(u32)];
}
static unsigned int entry_type(u32 header)
{
return header & 0xFF;
}
static unsigned int entry_size(u32 header)
{
return (header >> 8) & 0xFF;
}
static bool entry_update(u32 header)
{
return (header >> 30) & 0x1;
}
static bool entry_optional(u32 header)
{
return (header >> 31) & 0x1;
}
/**
* struct firmware_timeline_metadata - Timeline metadata item within the MCU firmware
*
* @node: List head linking all timeline metadata to
* kbase_device:csf.firmware_timeline_metadata.
* @name: NUL-terminated string naming the metadata.
* @data: Metadata content.
* @size: Metadata size.
*/
struct firmware_timeline_metadata {
struct list_head node;
char *name;
char *data;
size_t size;
};
/* The shared interface area, used for communicating with firmware, is managed
* like a virtual memory zone. Reserve the virtual space from that zone
* corresponding to shared interface entry parsed from the firmware image.
* The shared_reg_rbtree should have been initialized before calling this
* function.
*/
static int setup_shared_iface_static_region(struct kbase_device *kbdev)
{
struct kbase_csf_firmware_interface *interface =
kbdev->csf.shared_interface;
struct kbase_va_region *reg;
int ret = -ENOMEM;
if (!interface)
return -EINVAL;
reg = kbase_alloc_free_region(&kbdev->csf.shared_reg_rbtree, 0,
interface->num_pages_aligned, KBASE_REG_ZONE_MCU_SHARED);
if (reg) {
mutex_lock(&kbdev->csf.reg_lock);
ret = kbase_add_va_region_rbtree(kbdev, reg,
interface->virtual, interface->num_pages_aligned, 1);
mutex_unlock(&kbdev->csf.reg_lock);
if (ret)
kfree(reg);
else
reg->flags &= ~KBASE_REG_FREE;
}
return ret;
}
static int wait_mcu_status_value(struct kbase_device *kbdev, u32 val)
{
u32 max_loops = CSF_MAX_FW_STOP_LOOPS;
/* wait for the MCU_STATUS register to reach the given status value */
while (--max_loops &&
(kbase_reg_read(kbdev, GPU_CONTROL_REG(MCU_STATUS)) != val)) {
}
return (max_loops == 0) ? -1 : 0;
}
void kbase_csf_firmware_disable_mcu(struct kbase_device *kbdev)
{
KBASE_TLSTREAM_TL_KBASE_CSFFW_FW_DISABLING(kbdev, kbase_backend_get_cycle_cnt(kbdev));
kbase_reg_write(kbdev, GPU_CONTROL_REG(MCU_CONTROL), MCU_CNTRL_DISABLE);
}
static void wait_for_firmware_stop(struct kbase_device *kbdev)
{
if (wait_mcu_status_value(kbdev, MCU_CNTRL_DISABLE) < 0) {
/* This error shall go away once MIDJM-2371 is closed */
dev_err(kbdev->dev, "Firmware failed to stop");
}
KBASE_TLSTREAM_TL_KBASE_CSFFW_FW_OFF(kbdev, kbase_backend_get_cycle_cnt(kbdev));
}
void kbase_csf_firmware_disable_mcu_wait(struct kbase_device *kbdev)
{
wait_for_firmware_stop(kbdev);
}
static void stop_csf_firmware(struct kbase_device *kbdev)
{
/* Stop the MCU firmware */
kbase_csf_firmware_disable_mcu(kbdev);
wait_for_firmware_stop(kbdev);
}
static void wait_for_firmware_boot(struct kbase_device *kbdev)
{
long wait_timeout;
long remaining;
if (!csf_firmware_boot_timeout_ms)
csf_firmware_boot_timeout_ms =
kbase_get_timeout_ms(kbdev, CSF_FIRMWARE_BOOT_TIMEOUT);
wait_timeout = kbase_csf_timeout_in_jiffies(csf_firmware_boot_timeout_ms);
/* Firmware will generate a global interface interrupt once booting
* is complete
*/
remaining = wait_event_timeout(kbdev->csf.event_wait,
kbdev->csf.interrupt_received == true, wait_timeout);
if (!remaining)
dev_err(kbdev->dev, "Timed out waiting for fw boot completion");
kbdev->csf.interrupt_received = false;
}
static void boot_csf_firmware(struct kbase_device *kbdev)
{
kbase_csf_firmware_enable_mcu(kbdev);
wait_for_firmware_boot(kbdev);
}
static void wait_ready(struct kbase_device *kbdev)
{
u32 max_loops = KBASE_AS_INACTIVE_MAX_LOOPS;
u32 val;
val = kbase_reg_read(kbdev, MMU_AS_REG(MCU_AS_NR, AS_STATUS));
/* Wait for a while for the update command to take effect */
while (--max_loops && (val & AS_STATUS_AS_ACTIVE))
val = kbase_reg_read(kbdev, MMU_AS_REG(MCU_AS_NR, AS_STATUS));
if (max_loops == 0)
dev_err(kbdev->dev, "AS_ACTIVE bit stuck, might be caused by slow/unstable GPU clock or possible faulty FPGA connector\n");
}
static void unload_mmu_tables(struct kbase_device *kbdev)
{
unsigned long irq_flags;
mutex_lock(&kbdev->mmu_hw_mutex);
spin_lock_irqsave(&kbdev->hwaccess_lock, irq_flags);
if (kbdev->pm.backend.gpu_powered)
kbase_mmu_disable_as(kbdev, MCU_AS_NR);
spin_unlock_irqrestore(&kbdev->hwaccess_lock, irq_flags);
mutex_unlock(&kbdev->mmu_hw_mutex);
}
static void load_mmu_tables(struct kbase_device *kbdev)
{
unsigned long irq_flags;
mutex_lock(&kbdev->mmu_hw_mutex);
spin_lock_irqsave(&kbdev->hwaccess_lock, irq_flags);
kbase_mmu_update(kbdev, &kbdev->csf.mcu_mmu, MCU_AS_NR);
spin_unlock_irqrestore(&kbdev->hwaccess_lock, irq_flags);
mutex_unlock(&kbdev->mmu_hw_mutex);
/* Wait for a while for the update command to take effect */
wait_ready(kbdev);
}
/**
* convert_mem_flags() - Convert firmware memory flags to GPU region flags
*
* Return: GPU memory region flags
*
* @kbdev: Instance of GPU platform device (used to determine system coherency)
* @flags: Flags of an "interface memory setup" section in a firmware image
* @cm: appropriate cache mode chosen for the "interface memory setup"
* section, which could be different from the cache mode requested by
* firmware.
*/
static unsigned long convert_mem_flags(const struct kbase_device * const kbdev,
const u32 flags, u32 *cm)
{
unsigned long mem_flags = 0;
u32 cache_mode = flags & CSF_FIRMWARE_ENTRY_CACHE_MODE;
bool is_shared = (flags & CSF_FIRMWARE_ENTRY_SHARED) ? true : false;
/* The memory flags control the access permissions for the MCU, the
* shader cores/tiler are not expected to access this memory
*/
if (flags & CSF_FIRMWARE_ENTRY_READ)
mem_flags |= KBASE_REG_GPU_RD;
if (flags & CSF_FIRMWARE_ENTRY_WRITE)
mem_flags |= KBASE_REG_GPU_WR;
if ((flags & CSF_FIRMWARE_ENTRY_EXECUTE) == 0)
mem_flags |= KBASE_REG_GPU_NX;
if (flags & CSF_FIRMWARE_ENTRY_PROTECTED)
mem_flags |= KBASE_REG_PROTECTED;
/* Substitute uncached coherent memory for cached coherent memory if
* the system does not support ACE coherency.
*/
if ((cache_mode == CSF_FIRMWARE_CACHE_MODE_CACHED_COHERENT) &&
(kbdev->system_coherency != COHERENCY_ACE))
cache_mode = CSF_FIRMWARE_CACHE_MODE_UNCACHED_COHERENT;
/* Substitute uncached incoherent memory for uncached coherent memory
* if the system does not support ACE-Lite coherency.
*/
if ((cache_mode == CSF_FIRMWARE_CACHE_MODE_UNCACHED_COHERENT) &&
(kbdev->system_coherency == COHERENCY_NONE))
cache_mode = CSF_FIRMWARE_CACHE_MODE_NONE;
*cm = cache_mode;
switch (cache_mode) {
case CSF_FIRMWARE_CACHE_MODE_NONE:
mem_flags |=
KBASE_REG_MEMATTR_INDEX(AS_MEMATTR_INDEX_NON_CACHEABLE);
break;
case CSF_FIRMWARE_CACHE_MODE_CACHED:
mem_flags |=
KBASE_REG_MEMATTR_INDEX(
AS_MEMATTR_INDEX_IMPL_DEF_CACHE_POLICY);
break;
case CSF_FIRMWARE_CACHE_MODE_UNCACHED_COHERENT:
case CSF_FIRMWARE_CACHE_MODE_CACHED_COHERENT:
WARN_ON(!is_shared);
mem_flags |= KBASE_REG_SHARE_BOTH |
KBASE_REG_MEMATTR_INDEX(AS_MEMATTR_INDEX_SHARED);
break;
default:
dev_err(kbdev->dev,
"Firmware contains interface with unsupported cache mode\n");
break;
}
return mem_flags;
}
static void load_fw_image_section(struct kbase_device *kbdev, const u8 *data,
struct tagged_addr *phys, u32 num_pages, u32 flags,
u32 data_start, u32 data_end)
{
u32 data_pos = data_start;
u32 data_len = data_end - data_start;
u32 page_num;
u32 page_limit;
if (flags & CSF_FIRMWARE_ENTRY_ZERO)
page_limit = num_pages;
else
page_limit = (data_len + PAGE_SIZE - 1) / PAGE_SIZE;
for (page_num = 0; page_num < page_limit; ++page_num) {
struct page *const page = as_page(phys[page_num]);
char *const p = kmap_atomic(page);
u32 const copy_len = min_t(u32, PAGE_SIZE, data_len);
if (copy_len > 0) {
memcpy(p, data + data_pos, copy_len);
data_pos += copy_len;
data_len -= copy_len;
}
if (flags & CSF_FIRMWARE_ENTRY_ZERO) {
u32 const zi_len = PAGE_SIZE - copy_len;
memset(p + copy_len, 0, zi_len);
}
kbase_sync_single_for_device(kbdev, kbase_dma_addr(page),
PAGE_SIZE, DMA_TO_DEVICE);
kunmap_atomic(p);
}
}
static int reload_fw_image(struct kbase_device *kbdev)
{
const u32 magic = FIRMWARE_HEADER_MAGIC;
struct kbase_csf_firmware_interface *interface;
struct kbase_csf_mcu_fw *const mcu_fw = &kbdev->csf.fw;
int ret = 0;
if (WARN_ON(mcu_fw->data == NULL)) {
dev_err(kbdev->dev, "Firmware image copy not loaded\n");
ret = -EINVAL;
goto out;
}
/* Do a basic sanity check on MAGIC signature */
if (memcmp(mcu_fw->data, &magic, sizeof(magic)) != 0) {
dev_err(kbdev->dev, "Incorrect magic value, firmware image could have been corrupted\n");
ret = -EINVAL;
goto out;
}
list_for_each_entry(interface, &kbdev->csf.firmware_interfaces, node) {
/* Dont skip re-loading any section if full reload was requested */
if (!kbdev->csf.firmware_full_reload_needed) {
/* Skip reload of text & read only data sections */
if ((interface->flags & CSF_FIRMWARE_ENTRY_EXECUTE) ||
!(interface->flags & CSF_FIRMWARE_ENTRY_WRITE))
continue;
}
load_fw_image_section(kbdev, mcu_fw->data, interface->phys, interface->num_pages,
interface->flags, interface->data_start, interface->data_end);
}
kbdev->csf.firmware_full_reload_needed = false;
kbase_csf_firmware_reload_trace_buffers_data(kbdev);
out:
return ret;
}
/**
* entry_find_large_page_to_reuse() - Find if the large page of previously parsed
* FW interface entry can be reused to store
* the contents of new FW interface entry.
*
* @kbdev: Kbase device structure
* @virtual_start: Start of the virtual address range required for an entry allocation
* @virtual_end: End of the virtual address range required for an entry allocation
* @phys: Pointer to the array of physical (tagged) addresses making up the new
* FW interface entry. It is an output parameter which would be made to
* point to an already existing array allocated for the previously parsed
* FW interface entry using large page(s). If no appropriate entry is
* found it is set to NULL.
* @pma: Pointer to a protected memory allocation. It is an output parameter
* which would be made to the protected memory allocation of a previously
* parsed FW interface entry using large page(s) from protected memory.
* If no appropriate entry is found it is set to NULL.
* @num_pages: Number of pages requested.
* @num_pages_aligned: This is an output parameter used to carry the number of 4KB pages
* within the 2MB pages aligned allocation.
* @is_small_page: This is an output flag used to select between the small and large page
* to be used for the FW entry allocation.
*
* Go through all the already initialized interfaces and find if a previously
* allocated large page can be used to store contents of new FW interface entry.
*
* Return: true if a large page can be reused, false otherwise.
*/
static inline bool entry_find_large_page_to_reuse(
struct kbase_device *kbdev, const u32 virtual_start, const u32 virtual_end,
struct tagged_addr **phys, struct protected_memory_allocation ***pma,
u32 num_pages, u32 *num_pages_aligned, bool *is_small_page)
{
struct kbase_csf_firmware_interface *interface = NULL;
struct kbase_csf_firmware_interface *target_interface = NULL;
u32 virtual_diff_min = U32_MAX;
bool reuse_large_page = false;
CSTD_UNUSED(interface);
CSTD_UNUSED(target_interface);
CSTD_UNUSED(virtual_diff_min);
*num_pages_aligned = num_pages;
*is_small_page = true;
*phys = NULL;
*pma = NULL;
return reuse_large_page;
}
/**
* parse_memory_setup_entry() - Process an "interface memory setup" section
*
* @kbdev: Kbase device structure
* @fw: The firmware image containing the section
* @entry: Pointer to the start of the section
* @size: Size (in bytes) of the section
*
* Read an "interface memory setup" section from the firmware image and create
* the necessary memory region including the MMU page tables. If successful
* the interface will be added to the kbase_device:csf.firmware_interfaces list.
*
* Return: 0 if successful, negative error code on failure
*/
static int parse_memory_setup_entry(struct kbase_device *kbdev,
const struct kbase_csf_mcu_fw *const fw, const u32 *entry,
unsigned int size)
{
int ret = 0;
const u32 flags = entry[0];
const u32 virtual_start = entry[1];
const u32 virtual_end = entry[2];
const u32 data_start = entry[3];
const u32 data_end = entry[4];
u32 num_pages;
u32 num_pages_aligned;
char *name;
struct tagged_addr *phys = NULL;
struct kbase_csf_firmware_interface *interface = NULL;
bool allocated_pages = false, protected_mode = false;
unsigned long mem_flags = 0;
u32 cache_mode = 0;
struct protected_memory_allocation **pma = NULL;
bool reuse_pages = false;
bool is_small_page = true;
if (data_end < data_start) {
dev_err(kbdev->dev, "Firmware corrupt, data_end < data_start (0x%x<0x%x)\n",
data_end, data_start);
return -EINVAL;
}
if (virtual_end < virtual_start) {
dev_err(kbdev->dev, "Firmware corrupt, virtual_end < virtual_start (0x%x<0x%x)\n",
virtual_end, virtual_start);
return -EINVAL;
}
if (data_end > fw->size) {
dev_err(kbdev->dev, "Firmware corrupt, file truncated? data_end=0x%x > fw->size=0x%zx\n",
data_end, fw->size);
return -EINVAL;
}
if ((virtual_start & ~PAGE_MASK) != 0 ||
(virtual_end & ~PAGE_MASK) != 0) {
dev_err(kbdev->dev, "Firmware corrupt: virtual addresses not page aligned: 0x%x-0x%x\n",
virtual_start, virtual_end);
return -EINVAL;
}
if ((flags & CSF_FIRMWARE_ENTRY_SUPPORTED_FLAGS) != flags) {
dev_err(kbdev->dev, "Firmware contains interface with unsupported flags (0x%x)\n",
flags);
return -EINVAL;
}
if (flags & CSF_FIRMWARE_ENTRY_PROTECTED)
protected_mode = true;
if (protected_mode && kbdev->csf.pma_dev == NULL) {
dev_err(kbdev->dev,
"Protected memory allocator not found, Firmware protected mode entry will not be supported");
return 0;
}
num_pages = (virtual_end - virtual_start)
>> PAGE_SHIFT;
reuse_pages = entry_find_large_page_to_reuse(
kbdev, virtual_start, virtual_end, &phys, &pma,
num_pages, &num_pages_aligned, &is_small_page);
if (!reuse_pages)
phys = kmalloc_array(num_pages_aligned, sizeof(*phys), GFP_KERNEL);
if (!phys)
return -ENOMEM;
if (protected_mode) {
if (!reuse_pages) {
pma = kbase_csf_protected_memory_alloc(
kbdev, phys, num_pages_aligned, is_small_page);
}
if (!pma)
ret = -ENOMEM;
} else {
if (!reuse_pages) {
ret = kbase_mem_pool_alloc_pages(
kbase_mem_pool_group_select(
kbdev, KBASE_MEM_GROUP_CSF_FW, is_small_page),
num_pages_aligned, phys, false);
}
}
if (ret < 0) {
dev_err(kbdev->dev,
"Failed to allocate %u physical pages for the firmware interface entry at VA 0x%x\n",
num_pages_aligned, virtual_start);
goto out;
}
allocated_pages = true;
load_fw_image_section(kbdev, fw->data, phys, num_pages, flags,
data_start, data_end);
/* Allocate enough memory for the struct kbase_csf_firmware_interface and
* the name of the interface. An extra byte is allocated to place a
* NUL-terminator in. This should already be included according to the
* specification but here we add it anyway to be robust against a
* corrupt firmware image.
*/
interface = kmalloc(sizeof(*interface) +
size - INTERFACE_ENTRY_NAME_OFFSET + 1, GFP_KERNEL);
if (!interface) {
ret = -ENOMEM;
goto out;
}
name = (void *)(interface + 1);
memcpy(name, entry + (INTERFACE_ENTRY_NAME_OFFSET / sizeof(*entry)),
size - INTERFACE_ENTRY_NAME_OFFSET);
name[size - INTERFACE_ENTRY_NAME_OFFSET] = 0;
interface->name = name;
interface->phys = phys;
interface->reuse_pages = reuse_pages;
interface->is_small_page = is_small_page;
interface->num_pages = num_pages;
interface->num_pages_aligned = num_pages_aligned;
interface->virtual = virtual_start;
interface->kernel_map = NULL;
interface->flags = flags;
interface->data_start = data_start;
interface->data_end = data_end;
interface->pma = pma;
mem_flags = convert_mem_flags(kbdev, flags, &cache_mode);
if (flags & CSF_FIRMWARE_ENTRY_SHARED) {
struct page **page_list;
u32 i;
pgprot_t cpu_map_prot;
u32 mem_attr_index = KBASE_REG_MEMATTR_VALUE(mem_flags);
/* Since SHARED memory type was used for mapping shared memory
* on GPU side, it can be mapped as cached on CPU side on both
* types of coherent platforms.
*/
if ((cache_mode == CSF_FIRMWARE_CACHE_MODE_CACHED_COHERENT) ||
(cache_mode == CSF_FIRMWARE_CACHE_MODE_UNCACHED_COHERENT)) {
WARN_ON(mem_attr_index !=
AS_MEMATTR_INDEX_SHARED);
cpu_map_prot = PAGE_KERNEL;
} else {
WARN_ON(mem_attr_index !=
AS_MEMATTR_INDEX_NON_CACHEABLE);
cpu_map_prot = pgprot_writecombine(PAGE_KERNEL);
}
page_list = kmalloc_array(num_pages, sizeof(*page_list),
GFP_KERNEL);
if (!page_list) {
ret = -ENOMEM;
goto out;
}
for (i = 0; i < num_pages; i++)
page_list[i] = as_page(phys[i]);
interface->kernel_map = vmap(page_list, num_pages, VM_MAP,
cpu_map_prot);
kfree(page_list);
if (!interface->kernel_map) {
ret = -ENOMEM;
goto out;
}
}
/* Start location of the shared interface area is fixed and is
* specified in firmware spec, and so there shall only be a
* single entry with that start address.
*/
if (virtual_start == (KBASE_REG_ZONE_MCU_SHARED_BASE << PAGE_SHIFT))
kbdev->csf.shared_interface = interface;
list_add(&interface->node, &kbdev->csf.firmware_interfaces);
if (!reuse_pages) {
ret = kbase_mmu_insert_pages_no_flush(kbdev, &kbdev->csf.mcu_mmu,
virtual_start >> PAGE_SHIFT, phys,
num_pages_aligned, mem_flags,
KBASE_MEM_GROUP_CSF_FW, NULL);
if (ret != 0) {
dev_err(kbdev->dev, "Failed to insert firmware pages\n");
/* The interface has been added to the list, so cleanup will
* be handled by firmware unloading
*/
}
}
dev_dbg(kbdev->dev, "Processed section '%s'", name);
return ret;
out:
if (allocated_pages) {
if (!reuse_pages) {
if (protected_mode) {
kbase_csf_protected_memory_free(
kbdev, pma, num_pages_aligned, is_small_page);
} else {
kbase_mem_pool_free_pages(
kbase_mem_pool_group_select(
kbdev, KBASE_MEM_GROUP_CSF_FW, is_small_page),
num_pages_aligned, phys, false, false);
}
}
}
if (!reuse_pages)
kfree(phys);
kfree(interface);
return ret;
}
/**
* parse_timeline_metadata_entry() - Process a "timeline metadata" section
*
* Return: 0 if successful, negative error code on failure
*
* @kbdev: Kbase device structure
* @fw: Firmware image containing the section
* @entry: Pointer to the section
* @size: Size (in bytes) of the section
*/
static int parse_timeline_metadata_entry(struct kbase_device *kbdev,
const struct kbase_csf_mcu_fw *const fw, const u32 *entry,
unsigned int size)
{
const u32 data_start = entry[0];
const u32 data_size = entry[1];
const u32 data_end = data_start + data_size;
const char *name = (char *)&entry[2];
struct firmware_timeline_metadata *metadata;
const unsigned int name_len =
size - TL_METADATA_ENTRY_NAME_OFFSET;
size_t allocation_size = sizeof(*metadata) + name_len + 1 + data_size;
if (data_end > fw->size) {
dev_err(kbdev->dev,
"Firmware corrupt, file truncated? data_end=0x%x > fw->size=0x%zx",
data_end, fw->size);
return -EINVAL;
}
/* Allocate enough space for firmware_timeline_metadata,
* its name and the content.
*/
metadata = kmalloc(allocation_size, GFP_KERNEL);
if (!metadata)
return -ENOMEM;
metadata->name = (char *)(metadata + 1);
metadata->data = (char *)(metadata + 1) + name_len + 1;
metadata->size = data_size;
memcpy(metadata->name, name, name_len);
metadata->name[name_len] = 0;
/* Copy metadata's content. */
memcpy(metadata->data, fw->data + data_start, data_size);
list_add(&metadata->node, &kbdev->csf.firmware_timeline_metadata);
dev_dbg(kbdev->dev, "Timeline metadata '%s'", metadata->name);
return 0;
}
/**
* parse_build_info_metadata_entry() - Process a "build info metadata" section
* @kbdev: Kbase device structure
* @fw: Firmware image containing the section
* @entry: Pointer to the section
* @size: Size (in bytes) of the section
*
* This prints the git SHA of the firmware on firmware load.
*
* Return: 0 if successful, negative error code on failure
*/
static int parse_build_info_metadata_entry(struct kbase_device *kbdev,
const struct kbase_csf_mcu_fw *const fw,
const u32 *entry, unsigned int size)
{
const u32 meta_start_addr = entry[0];
char *ptr = NULL;
size_t sha_pattern_len = strlen(BUILD_INFO_GIT_SHA_PATTERN);
/* Only print git SHA to avoid releasing sensitive information */
ptr = strstr(fw->data + meta_start_addr, BUILD_INFO_GIT_SHA_PATTERN);
/* Check that we won't overrun the found string */
if (ptr &&
strlen(ptr) >= BUILD_INFO_GIT_SHA_LEN + BUILD_INFO_GIT_DIRTY_LEN + sha_pattern_len) {
char git_sha[BUILD_INFO_GIT_SHA_LEN + BUILD_INFO_GIT_DIRTY_LEN + 1];
int i = 0;
/* Move ptr to start of SHA */
ptr += sha_pattern_len;
for (i = 0; i < BUILD_INFO_GIT_SHA_LEN; i++) {
/* Ensure that the SHA is made up of hex digits */
if (!isxdigit(ptr[i]))
break;
git_sha[i] = ptr[i];
}
/* Check if the next char indicates git SHA is dirty */
if (ptr[i] == ' ' || ptr[i] == '+') {
git_sha[i] = ptr[i];
i++;
}
git_sha[i] = '\0';
dev_info(kbdev->dev, "Mali firmware git_sha: %s\n", git_sha);
} else
dev_info(kbdev->dev, "Mali firmware git_sha not found or invalid\n");
return 0;
}
/**
* load_firmware_entry() - Process an entry from a firmware image
*
* @kbdev: Kbase device
* @fw: Firmware image containing the entry
* @offset: Byte offset within the image of the entry to load
* @header: Header word of the entry
*
* Read an entry from a firmware image and do any necessary work (e.g. loading
* the data into page accessible to the MCU).
*
* Unknown entries are ignored if the 'optional' flag is set within the entry,
* otherwise the function will fail with -EINVAL
*
* Return: 0 if successful, negative error code on failure
*/
static int load_firmware_entry(struct kbase_device *kbdev, const struct kbase_csf_mcu_fw *const fw,
u32 offset, u32 header)
{
const unsigned int type = entry_type(header);
unsigned int size = entry_size(header);
const bool optional = entry_optional(header);
/* Update is used with configuration and tracebuffer entries to
* initiate a FIRMWARE_CONFIG_UPDATE, instead of triggering a
* silent reset.
*/
const bool updatable = entry_update(header);
const u32 *entry = (void *)(fw->data + offset);
if ((offset % sizeof(*entry)) || (size % sizeof(*entry))) {
dev_err(kbdev->dev, "Firmware entry isn't 32 bit aligned, offset=0x%x size=0x%x\n",
offset, size);
return -EINVAL;
}
if (size < sizeof(*entry)) {
dev_err(kbdev->dev, "Size field too small: %u\n", size);
return -EINVAL;
}
/* Remove the header */
entry++;
size -= sizeof(*entry);
switch (type) {
case CSF_FIRMWARE_ENTRY_TYPE_INTERFACE:
/* Interface memory setup */
if (size < INTERFACE_ENTRY_NAME_OFFSET + sizeof(*entry)) {
dev_err(kbdev->dev, "Interface memory setup entry too short (size=%u)\n",
size);
return -EINVAL;
}
return parse_memory_setup_entry(kbdev, fw, entry, size);
case CSF_FIRMWARE_ENTRY_TYPE_CONFIGURATION:
/* Configuration option */
if (size < CONFIGURATION_ENTRY_NAME_OFFSET + sizeof(*entry)) {
dev_err(kbdev->dev, "Configuration option entry too short (size=%u)\n",
size);
return -EINVAL;
}
return kbase_csf_firmware_cfg_option_entry_parse(
kbdev, fw, entry, size, updatable);
case CSF_FIRMWARE_ENTRY_TYPE_TRACE_BUFFER:
/* Trace buffer */
if (size < TRACE_BUFFER_ENTRY_NAME_OFFSET + sizeof(*entry)) {
dev_err(kbdev->dev, "Trace Buffer entry too short (size=%u)\n",
size);
return -EINVAL;
}
return kbase_csf_firmware_parse_trace_buffer_entry(
kbdev, entry, size, updatable);
case CSF_FIRMWARE_ENTRY_TYPE_TIMELINE_METADATA:
/* Meta data section */
if (size < TL_METADATA_ENTRY_NAME_OFFSET + sizeof(*entry)) {
dev_err(kbdev->dev, "Timeline metadata entry too short (size=%u)\n",
size);
return -EINVAL;
}
return parse_timeline_metadata_entry(kbdev, fw, entry, size);
case CSF_FIRMWARE_ENTRY_TYPE_BUILD_INFO_METADATA:
if (size < BUILD_INFO_METADATA_SIZE_OFFSET + sizeof(*entry)) {
dev_err(kbdev->dev, "Build info metadata entry too short (size=%u)\n",
size);
return -EINVAL;
}
return parse_build_info_metadata_entry(kbdev, fw, entry, size);
}
if (!optional) {
dev_err(kbdev->dev,
"Unsupported non-optional entry type %u in firmware\n",
type);
return -EINVAL;
}
return 0;
}
static void free_global_iface(struct kbase_device *kbdev)
{
struct kbase_csf_global_iface *iface = &kbdev->csf.global_iface;
if (iface->groups) {
unsigned int gid;
for (gid = 0; gid < iface->group_num; ++gid)
kfree(iface->groups[gid].streams);
kfree(iface->groups);
iface->groups = NULL;
}
}
/**
* iface_gpu_va_to_cpu - Convert a GPU VA address within the shared interface
* region to a CPU address, using the existing mapping.
* @kbdev: Device pointer
* @gpu_va: GPU VA to convert
*
* Return: A CPU pointer to the location within the shared interface region, or
* NULL on failure.
*/
static inline void *iface_gpu_va_to_cpu(struct kbase_device *kbdev, u32 gpu_va)
{
struct kbase_csf_firmware_interface *interface =
kbdev->csf.shared_interface;
u8 *kernel_base = interface->kernel_map;
if (gpu_va < interface->virtual ||
gpu_va >= interface->virtual + interface->num_pages * PAGE_SIZE) {
dev_err(kbdev->dev,
"Interface address 0x%x not within %u-page region at 0x%x",
gpu_va, interface->num_pages,
interface->virtual);
return NULL;
}
return (void *)(kernel_base + (gpu_va - interface->virtual));
}
static int parse_cmd_stream_info(struct kbase_device *kbdev,
struct kbase_csf_cmd_stream_info *sinfo,
u32 *stream_base)
{
sinfo->kbdev = kbdev;
sinfo->features = stream_base[STREAM_FEATURES/4];
sinfo->input = iface_gpu_va_to_cpu(kbdev,
stream_base[STREAM_INPUT_VA/4]);
sinfo->output = iface_gpu_va_to_cpu(kbdev,
stream_base[STREAM_OUTPUT_VA/4]);
if (sinfo->input == NULL || sinfo->output == NULL)
return -EINVAL;
return 0;
}
static int parse_cmd_stream_group_info(struct kbase_device *kbdev,
struct kbase_csf_cmd_stream_group_info *ginfo,
u32 *group_base, u32 group_stride)
{
unsigned int sid;
ginfo->kbdev = kbdev;
ginfo->features = group_base[GROUP_FEATURES/4];
ginfo->input = iface_gpu_va_to_cpu(kbdev,
group_base[GROUP_INPUT_VA/4]);
ginfo->output = iface_gpu_va_to_cpu(kbdev,
group_base[GROUP_OUTPUT_VA/4]);
if (ginfo->input == NULL || ginfo->output == NULL)
return -ENOMEM;
ginfo->suspend_size = group_base[GROUP_SUSPEND_SIZE/4];
ginfo->protm_suspend_size = group_base[GROUP_PROTM_SUSPEND_SIZE/4];
ginfo->stream_num = group_base[GROUP_STREAM_NUM/4];
if (ginfo->stream_num < MIN_SUPPORTED_STREAMS_PER_GROUP ||
ginfo->stream_num > MAX_SUPPORTED_STREAMS_PER_GROUP) {
dev_err(kbdev->dev, "CSG with %u CSs out of range %u-%u",
ginfo->stream_num,
MIN_SUPPORTED_STREAMS_PER_GROUP,
MAX_SUPPORTED_STREAMS_PER_GROUP);
return -EINVAL;
}
ginfo->stream_stride = group_base[GROUP_STREAM_STRIDE/4];
if (ginfo->stream_num * ginfo->stream_stride > group_stride) {
dev_err(kbdev->dev,
"group stride of 0x%x exceeded by %u CSs with stride 0x%x",
group_stride, ginfo->stream_num,
ginfo->stream_stride);
return -EINVAL;
}
ginfo->streams = kmalloc_array(ginfo->stream_num,
sizeof(*ginfo->streams), GFP_KERNEL);
if (!ginfo->streams)
return -ENOMEM;
for (sid = 0; sid < ginfo->stream_num; sid++) {
int err;
u32 *stream_base = group_base + (STREAM_CONTROL_0 +
ginfo->stream_stride * sid) / 4;
err = parse_cmd_stream_info(kbdev, &ginfo->streams[sid],
stream_base);
if (err < 0) {
/* caller will free the memory for CSs array */
return err;
}
}
return 0;
}
static u32 get_firmware_version(struct kbase_device *kbdev)
{
struct kbase_csf_firmware_interface *interface =
kbdev->csf.shared_interface;
u32 *shared_info = interface->kernel_map;
return shared_info[GLB_VERSION/4];
}
static int parse_capabilities(struct kbase_device *kbdev)
{
struct kbase_csf_firmware_interface *interface =
kbdev->csf.shared_interface;
u32 *shared_info = interface->kernel_map;
struct kbase_csf_global_iface *iface = &kbdev->csf.global_iface;
unsigned int gid;
/* All offsets are in bytes, so divide by 4 for access via a u32 pointer
*/
/* The version number of the global interface is expected to be a
* non-zero value. If it's not, the firmware may not have booted.
*/
iface->version = get_firmware_version(kbdev);
if (!iface->version) {
dev_err(kbdev->dev, "Version check failed. Firmware may have failed to boot.");
return -EINVAL;
}
iface->kbdev = kbdev;
iface->features = shared_info[GLB_FEATURES/4];
iface->input = iface_gpu_va_to_cpu(kbdev, shared_info[GLB_INPUT_VA/4]);
iface->output = iface_gpu_va_to_cpu(kbdev,
shared_info[GLB_OUTPUT_VA/4]);
if (iface->input == NULL || iface->output == NULL)
return -ENOMEM;
iface->group_num = shared_info[GLB_GROUP_NUM/4];
if (iface->group_num < MIN_SUPPORTED_CSGS ||
iface->group_num > MAX_SUPPORTED_CSGS) {
dev_err(kbdev->dev,
"Interface containing %u CSGs outside of range %u-%u",
iface->group_num, MIN_SUPPORTED_CSGS,
MAX_SUPPORTED_CSGS);
return -EINVAL;
}
iface->group_stride = shared_info[GLB_GROUP_STRIDE/4];
iface->prfcnt_size = shared_info[GLB_PRFCNT_SIZE/4];
if (iface->version >= kbase_csf_interface_version(1, 1, 0))
iface->instr_features = shared_info[GLB_INSTR_FEATURES / 4];
else
iface->instr_features = 0;
if ((GROUP_CONTROL_0 +
(unsigned long)iface->group_num * iface->group_stride) >
(interface->num_pages * PAGE_SIZE)) {
dev_err(kbdev->dev,
"interface size of %u pages exceeded by %u CSGs with stride 0x%x",
interface->num_pages, iface->group_num,
iface->group_stride);
return -EINVAL;
}
WARN_ON(iface->groups);
iface->groups = kcalloc(iface->group_num, sizeof(*iface->groups),
GFP_KERNEL);
if (!iface->groups)
return -ENOMEM;
for (gid = 0; gid < iface->group_num; gid++) {
int err;
u32 *group_base = shared_info + (GROUP_CONTROL_0 +
iface->group_stride * gid) / 4;
err = parse_cmd_stream_group_info(kbdev, &iface->groups[gid],
group_base, iface->group_stride);
if (err < 0) {
free_global_iface(kbdev);
return err;
}
}
return 0;
}
static inline void access_firmware_memory(struct kbase_device *kbdev,
u32 gpu_addr, u32 *value, const bool read)
{
struct kbase_csf_firmware_interface *interface;
list_for_each_entry(interface, &kbdev->csf.firmware_interfaces, node) {
if ((gpu_addr >= interface->virtual) &&
(gpu_addr < interface->virtual + (interface->num_pages << PAGE_SHIFT))) {
u32 offset_bytes = gpu_addr - interface->virtual;
u32 page_num = offset_bytes >> PAGE_SHIFT;
u32 offset_in_page = offset_bytes & ~PAGE_MASK;
struct page *target_page = as_page(
interface->phys[page_num]);
u32 *cpu_addr = kmap_atomic(target_page);
if (read) {
kbase_sync_single_for_device(kbdev,
kbase_dma_addr(target_page) + offset_in_page,
sizeof(u32), DMA_BIDIRECTIONAL);
*value = cpu_addr[offset_in_page >> 2];
} else {
cpu_addr[offset_in_page >> 2] = *value;
kbase_sync_single_for_device(kbdev,
kbase_dma_addr(target_page) + offset_in_page,
sizeof(u32), DMA_BIDIRECTIONAL);
}
kunmap_atomic(cpu_addr);
return;
}
}
dev_warn(kbdev->dev, "Invalid GPU VA %x passed\n", gpu_addr);
}
void kbase_csf_read_firmware_memory(struct kbase_device *kbdev,
u32 gpu_addr, u32 *value)
{
access_firmware_memory(kbdev, gpu_addr, value, true);
}
void kbase_csf_update_firmware_memory(struct kbase_device *kbdev,
u32 gpu_addr, u32 value)
{
access_firmware_memory(kbdev, gpu_addr, &value, false);
}
void kbase_csf_firmware_cs_input(
const struct kbase_csf_cmd_stream_info *const info, const u32 offset,
const u32 value)
{
const struct kbase_device * const kbdev = info->kbdev;
dev_dbg(kbdev->dev, "cs input w: reg %08x val %08x\n", offset, value);
input_page_write(info->input, offset, value);
}
u32 kbase_csf_firmware_cs_input_read(
const struct kbase_csf_cmd_stream_info *const info,
const u32 offset)
{
const struct kbase_device * const kbdev = info->kbdev;
u32 const val = input_page_read(info->input, offset);
dev_dbg(kbdev->dev, "cs input r: reg %08x val %08x\n", offset, val);
return val;
}
void kbase_csf_firmware_cs_input_mask(
const struct kbase_csf_cmd_stream_info *const info, const u32 offset,
const u32 value, const u32 mask)
{
const struct kbase_device * const kbdev = info->kbdev;
dev_dbg(kbdev->dev, "cs input w: reg %08x val %08x mask %08x\n",
offset, value, mask);
input_page_partial_write(info->input, offset, value, mask);
}
u32 kbase_csf_firmware_cs_output(
const struct kbase_csf_cmd_stream_info *const info, const u32 offset)
{
const struct kbase_device * const kbdev = info->kbdev;
u32 const val = output_page_read(info->output, offset);
dev_dbg(kbdev->dev, "cs output r: reg %08x val %08x\n", offset, val);
return val;
}
void kbase_csf_firmware_csg_input(
const struct kbase_csf_cmd_stream_group_info *const info,
const u32 offset, const u32 value)
{
const struct kbase_device * const kbdev = info->kbdev;
dev_dbg(kbdev->dev, "csg input w: reg %08x val %08x\n",
offset, value);
input_page_write(info->input, offset, value);
}
u32 kbase_csf_firmware_csg_input_read(
const struct kbase_csf_cmd_stream_group_info *const info,
const u32 offset)
{
const struct kbase_device * const kbdev = info->kbdev;
u32 const val = input_page_read(info->input, offset);
dev_dbg(kbdev->dev, "csg input r: reg %08x val %08x\n", offset, val);
return val;
}
void kbase_csf_firmware_csg_input_mask(
const struct kbase_csf_cmd_stream_group_info *const info,
const u32 offset, const u32 value, const u32 mask)
{
const struct kbase_device * const kbdev = info->kbdev;
dev_dbg(kbdev->dev, "csg input w: reg %08x val %08x mask %08x\n",
offset, value, mask);
input_page_partial_write(info->input, offset, value, mask);
}
u32 kbase_csf_firmware_csg_output(
const struct kbase_csf_cmd_stream_group_info *const info,
const u32 offset)
{
const struct kbase_device * const kbdev = info->kbdev;
u32 const val = output_page_read(info->output, offset);
dev_dbg(kbdev->dev, "csg output r: reg %08x val %08x\n", offset, val);
return val;
}
KBASE_EXPORT_TEST_API(kbase_csf_firmware_csg_output);
void kbase_csf_firmware_global_input(
const struct kbase_csf_global_iface *const iface, const u32 offset,
const u32 value)
{
const struct kbase_device * const kbdev = iface->kbdev;
dev_dbg(kbdev->dev, "glob input w: reg %08x val %08x\n", offset, value);
input_page_write(iface->input, offset, value);
}
KBASE_EXPORT_TEST_API(kbase_csf_firmware_global_input);
void kbase_csf_firmware_global_input_mask(
const struct kbase_csf_global_iface *const iface, const u32 offset,
const u32 value, const u32 mask)
{
const struct kbase_device * const kbdev = iface->kbdev;
dev_dbg(kbdev->dev, "glob input w: reg %08x val %08x mask %08x\n",
offset, value, mask);
input_page_partial_write(iface->input, offset, value, mask);
}
KBASE_EXPORT_TEST_API(kbase_csf_firmware_global_input_mask);
u32 kbase_csf_firmware_global_input_read(
const struct kbase_csf_global_iface *const iface, const u32 offset)
{
const struct kbase_device * const kbdev = iface->kbdev;
u32 const val = input_page_read(iface->input, offset);
dev_dbg(kbdev->dev, "glob input r: reg %08x val %08x\n", offset, val);
return val;
}
u32 kbase_csf_firmware_global_output(
const struct kbase_csf_global_iface *const iface, const u32 offset)
{
const struct kbase_device * const kbdev = iface->kbdev;
u32 const val = output_page_read(iface->output, offset);
dev_dbg(kbdev->dev, "glob output r: reg %08x val %08x\n", offset, val);
return val;
}
KBASE_EXPORT_TEST_API(kbase_csf_firmware_global_output);
/**
* csf_doorbell_offset() - Calculate the offset to the CSF host doorbell
* @doorbell_nr: Doorbell number
*
* Return: CSF host register offset for the specified doorbell number.
*/
static u32 csf_doorbell_offset(int doorbell_nr)
{
WARN_ON(doorbell_nr < 0);
WARN_ON(doorbell_nr >= CSF_NUM_DOORBELL);
return CSF_HW_DOORBELL_PAGE_OFFSET + (doorbell_nr * CSF_HW_DOORBELL_PAGE_SIZE);
}
void kbase_csf_ring_doorbell(struct kbase_device *kbdev, int doorbell_nr)
{
kbase_reg_write(kbdev, csf_doorbell_offset(doorbell_nr), (u32)1);
}
EXPORT_SYMBOL(kbase_csf_ring_doorbell);
/**
* handle_internal_firmware_fatal - Handler for CS internal firmware fault.
*
* @kbdev: Pointer to kbase device
*
* Report group fatal error to user space for all GPU command queue groups
* in the device, terminate them and reset GPU.
*/
static void handle_internal_firmware_fatal(struct kbase_device *const kbdev)
{
int as;
for (as = 0; as < kbdev->nr_hw_address_spaces; as++) {
unsigned long flags;
struct kbase_context *kctx;
struct kbase_fault fault;
if (as == MCU_AS_NR)
continue;
/* Only handle the fault for an active address space. Lock is
* taken here to atomically get reference to context in an
* active address space and retain its refcount.
*/
spin_lock_irqsave(&kbdev->hwaccess_lock, flags);
kctx = kbase_ctx_sched_as_to_ctx_nolock(kbdev, as);
if (kctx) {
kbase_ctx_sched_retain_ctx_refcount(kctx);
spin_unlock_irqrestore(&kbdev->hwaccess_lock, flags);
} else {
spin_unlock_irqrestore(&kbdev->hwaccess_lock, flags);
continue;
}
fault = (struct kbase_fault) {
.status = GPU_EXCEPTION_TYPE_SW_FAULT_1,
};
kbase_csf_ctx_handle_fault(kctx, &fault);
kbase_ctx_sched_release_ctx_lock(kctx);
}
if (kbase_prepare_to_reset_gpu(kbdev,
RESET_FLAGS_HWC_UNRECOVERABLE_ERROR))
kbase_reset_gpu(kbdev);
}
/**
* firmware_error_worker - Worker function for handling firmware internal error
*
* @data: Pointer to a work_struct embedded in kbase device.
*
* Handle the CS internal firmware error
*/
static void firmware_error_worker(struct work_struct *const data)
{
struct kbase_device *const kbdev =
container_of(data, struct kbase_device, csf.fw_error_work);
handle_internal_firmware_fatal(kbdev);
}
static bool global_request_complete(struct kbase_device *const kbdev,
u32 const req_mask)
{
struct kbase_csf_global_iface *global_iface =
&kbdev->csf.global_iface;
bool complete = false;
unsigned long flags;
kbase_csf_scheduler_spin_lock(kbdev, &flags);
if ((kbase_csf_firmware_global_output(global_iface, GLB_ACK) &
req_mask) ==
(kbase_csf_firmware_global_input_read(global_iface, GLB_REQ) &
req_mask))
complete = true;
kbase_csf_scheduler_spin_unlock(kbdev, flags);
return complete;
}
static int wait_for_global_request_with_timeout(struct kbase_device *const kbdev,
u32 const req_mask, unsigned int timeout_ms)
{
const long wait_timeout = kbase_csf_timeout_in_jiffies(timeout_ms);
long remaining;
int err = 0;
remaining = wait_event_timeout(kbdev->csf.event_wait,
global_request_complete(kbdev, req_mask),
wait_timeout);
if (!remaining) {
dev_warn(kbdev->dev,
"[%llu] Timeout (%d ms) waiting for global request %x to complete",
kbase_backend_get_cycle_cnt(kbdev), timeout_ms, req_mask);
err = -ETIMEDOUT;
}
return err;
}
static int wait_for_global_request(struct kbase_device *const kbdev, u32 const req_mask)
{
return wait_for_global_request_with_timeout(kbdev, req_mask, kbdev->csf.fw_timeout_ms);
}
static void set_global_request(
const struct kbase_csf_global_iface *const global_iface,
u32 const req_mask)
{
u32 glb_req;
kbase_csf_scheduler_spin_lock_assert_held(global_iface->kbdev);
glb_req = kbase_csf_firmware_global_output(global_iface, GLB_ACK);
glb_req ^= req_mask;
kbase_csf_firmware_global_input_mask(global_iface, GLB_REQ, glb_req,
req_mask);
}
static void enable_endpoints_global(
const struct kbase_csf_global_iface *const global_iface,
u64 const shader_core_mask)
{
kbase_csf_firmware_global_input(global_iface, GLB_ALLOC_EN_LO,
shader_core_mask & U32_MAX);
kbase_csf_firmware_global_input(global_iface, GLB_ALLOC_EN_HI,
shader_core_mask >> 32);
set_global_request(global_iface, GLB_REQ_CFG_ALLOC_EN_MASK);
}
static void enable_shader_poweroff_timer(struct kbase_device *const kbdev,
const struct kbase_csf_global_iface *const global_iface)
{
u32 pwroff_reg;
if (kbdev->csf.firmware_hctl_core_pwr)
pwroff_reg =
GLB_PWROFF_TIMER_TIMER_SOURCE_SET(DISABLE_GLB_PWROFF_TIMER,
GLB_PWROFF_TIMER_TIMER_SOURCE_SYSTEM_TIMESTAMP);
else
pwroff_reg = kbdev->csf.mcu_core_pwroff_dur_count;
kbase_csf_firmware_global_input(global_iface, GLB_PWROFF_TIMER,
pwroff_reg);
set_global_request(global_iface, GLB_REQ_CFG_PWROFF_TIMER_MASK);
/* Save the programed reg value in its shadow field */
kbdev->csf.mcu_core_pwroff_reg_shadow = pwroff_reg;
dev_dbg(kbdev->dev, "GLB_PWROFF_TIMER set to 0x%.8x\n", pwroff_reg);
}
static void set_timeout_global(
const struct kbase_csf_global_iface *const global_iface,
u64 const timeout)
{
kbase_csf_firmware_global_input(global_iface, GLB_PROGRESS_TIMER,
timeout / GLB_PROGRESS_TIMER_TIMEOUT_SCALE);
set_global_request(global_iface, GLB_REQ_CFG_PROGRESS_TIMER_MASK);
}
static void enable_gpu_idle_timer(struct kbase_device *const kbdev)
{
struct kbase_csf_global_iface *global_iface = &kbdev->csf.global_iface;
kbase_csf_scheduler_spin_lock_assert_held(kbdev);
kbase_csf_firmware_global_input(global_iface, GLB_IDLE_TIMER,
kbdev->csf.gpu_idle_dur_count);
kbase_csf_firmware_global_input_mask(global_iface, GLB_REQ, GLB_REQ_REQ_IDLE_ENABLE,
GLB_REQ_IDLE_ENABLE_MASK);
dev_dbg(kbdev->dev, "Enabling GPU idle timer with count-value: 0x%.8x",
kbdev->csf.gpu_idle_dur_count);
}
static void global_init(struct kbase_device *const kbdev, u64 core_mask)
{
u32 const ack_irq_mask =
GLB_ACK_IRQ_MASK_CFG_ALLOC_EN_MASK | GLB_ACK_IRQ_MASK_PING_MASK |
GLB_ACK_IRQ_MASK_CFG_PROGRESS_TIMER_MASK | GLB_ACK_IRQ_MASK_PROTM_ENTER_MASK |
GLB_ACK_IRQ_MASK_PROTM_EXIT_MASK | GLB_ACK_IRQ_MASK_FIRMWARE_CONFIG_UPDATE_MASK |
GLB_ACK_IRQ_MASK_CFG_PWROFF_TIMER_MASK | GLB_ACK_IRQ_MASK_IDLE_EVENT_MASK |
GLB_ACK_IRQ_MASK_IDLE_ENABLE_MASK;
const struct kbase_csf_global_iface *const global_iface =
&kbdev->csf.global_iface;
unsigned long flags;
kbase_csf_scheduler_spin_lock(kbdev, &flags);
/* Update shader core allocation enable mask */
enable_endpoints_global(global_iface, core_mask);
enable_shader_poweroff_timer(kbdev, global_iface);
set_timeout_global(global_iface, kbase_csf_timeout_get(kbdev));
/* The GPU idle timer is always enabled for simplicity. Checks will be
* done before scheduling the GPU idle worker to see if it is
* appropriate for the current power policy.
*/
enable_gpu_idle_timer(kbdev);
/* Unmask the interrupts */
kbase_csf_firmware_global_input(global_iface,
GLB_ACK_IRQ_MASK, ack_irq_mask);
kbase_csf_ring_doorbell(kbdev, CSF_KERNEL_DOORBELL_NR);
kbase_csf_scheduler_spin_unlock(kbdev, flags);
}
/**
* global_init_on_boot - Sends a global request to control various features.
*
* @kbdev: Instance of a GPU platform device that implements a CSF interface
*
* Currently only the request to enable endpoints and timeout for GPU progress
* timer is sent.
*
* Return: 0 on success, or negative on failure.
*/
static int global_init_on_boot(struct kbase_device *const kbdev)
{
unsigned long flags;
u64 core_mask;
spin_lock_irqsave(&kbdev->hwaccess_lock, flags);
core_mask = kbase_pm_ca_get_core_mask(kbdev);
kbdev->csf.firmware_hctl_core_pwr =
kbase_pm_no_mcu_core_pwroff(kbdev);
spin_unlock_irqrestore(&kbdev->hwaccess_lock, flags);
global_init(kbdev, core_mask);
return wait_for_global_request(kbdev, CSF_GLB_REQ_CFG_MASK);
}
void kbase_csf_firmware_global_reinit(struct kbase_device *kbdev,
u64 core_mask)
{
lockdep_assert_held(&kbdev->hwaccess_lock);
kbdev->csf.glb_init_request_pending = true;
kbdev->csf.firmware_hctl_core_pwr =
kbase_pm_no_mcu_core_pwroff(kbdev);
global_init(kbdev, core_mask);
}
bool kbase_csf_firmware_global_reinit_complete(struct kbase_device *kbdev)
{
lockdep_assert_held(&kbdev->hwaccess_lock);
WARN_ON(!kbdev->csf.glb_init_request_pending);
if (global_request_complete(kbdev, CSF_GLB_REQ_CFG_MASK))
kbdev->csf.glb_init_request_pending = false;
return !kbdev->csf.glb_init_request_pending;
}
void kbase_csf_firmware_update_core_attr(struct kbase_device *kbdev,
bool update_core_pwroff_timer, bool update_core_mask, u64 core_mask)
{
unsigned long flags;
lockdep_assert_held(&kbdev->hwaccess_lock);
kbase_csf_scheduler_spin_lock(kbdev, &flags);
if (update_core_mask)
enable_endpoints_global(&kbdev->csf.global_iface, core_mask);
if (update_core_pwroff_timer)
enable_shader_poweroff_timer(kbdev, &kbdev->csf.global_iface);
kbase_csf_ring_doorbell(kbdev, CSF_KERNEL_DOORBELL_NR);
kbase_csf_scheduler_spin_unlock(kbdev, flags);
}
bool kbase_csf_firmware_core_attr_updated(struct kbase_device *kbdev)
{
lockdep_assert_held(&kbdev->hwaccess_lock);
return global_request_complete(kbdev, GLB_REQ_CFG_ALLOC_EN_MASK |
GLB_REQ_CFG_PWROFF_TIMER_MASK);
}
/**
* kbase_csf_firmware_reload_worker() - reload the fw image and re-enable the MCU
* @work: CSF Work item for reloading the firmware.
*
* This helper function will reload the firmware image and re-enable the MCU.
* It is supposed to be called after MCU(GPU) has been reset.
* Unlike the initial boot the firmware binary image is not parsed completely.
* Only the data sections, which were loaded in memory during the initial boot,
* are re-initialized either by zeroing them or copying their data from the
* firmware binary image. The memory allocation for the firmware pages and
* MMU programming is not needed for the reboot, presuming the firmware binary
* file on the filesystem would not change.
*/
static void kbase_csf_firmware_reload_worker(struct work_struct *work)
{
struct kbase_device *kbdev = container_of(work, struct kbase_device,
csf.firmware_reload_work);
int err;
dev_info(kbdev->dev, "reloading firmware");
KBASE_TLSTREAM_TL_KBASE_CSFFW_FW_RELOADING(kbdev, kbase_backend_get_cycle_cnt(kbdev));
/* Reload just the data sections from firmware binary image */
err = reload_fw_image(kbdev);
if (err)
return;
kbase_csf_tl_reader_reset(&kbdev->timeline->csf_tl_reader);
/* Reboot the firmware */
kbase_csf_firmware_enable_mcu(kbdev);
}
void kbase_csf_firmware_trigger_reload(struct kbase_device *kbdev)
{
lockdep_assert_held(&kbdev->hwaccess_lock);
kbdev->csf.firmware_reloaded = false;
if (kbdev->csf.firmware_reload_needed) {
kbdev->csf.firmware_reload_needed = false;
queue_work(system_wq, &kbdev->csf.firmware_reload_work);
} else {
kbase_csf_firmware_enable_mcu(kbdev);
}
}
void kbase_csf_firmware_reload_completed(struct kbase_device *kbdev)
{
u32 version;
lockdep_assert_held(&kbdev->hwaccess_lock);
if (unlikely(!kbdev->csf.firmware_inited))
return;
/* Check firmware rebooted properly: we do not expect
* the version number to change with a running reboot.
*/
version = get_firmware_version(kbdev);
if (version != kbdev->csf.global_iface.version)
dev_err(kbdev->dev, "Version check failed in firmware reboot.");
KBASE_KTRACE_ADD(kbdev, CSF_FIRMWARE_REBOOT, NULL, 0u);
/* Tell MCU state machine to transit to next state */
kbdev->csf.firmware_reloaded = true;
kbase_pm_update_state(kbdev);
}
static u32 convert_dur_to_idle_count(struct kbase_device *kbdev, const u32 dur_ms)
{
#define HYSTERESIS_VAL_UNIT_SHIFT (10)
/* Get the cntfreq_el0 value, which drives the SYSTEM_TIMESTAMP */
u64 freq = arch_timer_get_cntfrq();
u64 dur_val = dur_ms;
u32 cnt_val_u32, reg_val_u32;
bool src_system_timestamp = freq > 0;
if (!src_system_timestamp) {
/* Get the cycle_counter source alternative */
spin_lock(&kbdev->pm.clk_rtm.lock);
if (kbdev->pm.clk_rtm.clks[0])
freq = kbdev->pm.clk_rtm.clks[0]->clock_val;
else
dev_warn(kbdev->dev, "No GPU clock, unexpected integration issue!");
spin_unlock(&kbdev->pm.clk_rtm.lock);
dev_info(
kbdev->dev,
"Can't get the timestamp frequency, use cycle counter format with firmware idle hysteresis!");
}
/* Formula for dur_val = ((dur_ms/1000) * freq_HZ) >> 10) */
dur_val = (dur_val * freq) >> HYSTERESIS_VAL_UNIT_SHIFT;
dur_val = div_u64(dur_val, 1000);
/* Interface limits the value field to S32_MAX */
cnt_val_u32 = (dur_val > S32_MAX) ? S32_MAX : (u32)dur_val;
reg_val_u32 = GLB_IDLE_TIMER_TIMEOUT_SET(0, cnt_val_u32);
/* add the source flag */
if (src_system_timestamp)
reg_val_u32 = GLB_IDLE_TIMER_TIMER_SOURCE_SET(reg_val_u32,
GLB_IDLE_TIMER_TIMER_SOURCE_SYSTEM_TIMESTAMP);
else
reg_val_u32 = GLB_IDLE_TIMER_TIMER_SOURCE_SET(reg_val_u32,
GLB_IDLE_TIMER_TIMER_SOURCE_GPU_COUNTER);
return reg_val_u32;
}
u32 kbase_csf_firmware_get_gpu_idle_hysteresis_time(struct kbase_device *kbdev)
{
unsigned long flags;
u32 dur;
kbase_csf_scheduler_spin_lock(kbdev, &flags);
dur = kbdev->csf.gpu_idle_hysteresis_ms;
kbase_csf_scheduler_spin_unlock(kbdev, flags);
return dur;
}
u32 kbase_csf_firmware_set_gpu_idle_hysteresis_time(struct kbase_device *kbdev, u32 dur)
{
unsigned long flags;
const u32 hysteresis_val = convert_dur_to_idle_count(kbdev, dur);
/* The 'fw_load_lock' is taken to synchronize against the deferred
* loading of FW, where the idle timer will be enabled.
*/
mutex_lock(&kbdev->fw_load_lock);
if (unlikely(!kbdev->csf.firmware_inited)) {
kbase_csf_scheduler_spin_lock(kbdev, &flags);
kbdev->csf.gpu_idle_hysteresis_ms = dur;
kbdev->csf.gpu_idle_dur_count = hysteresis_val;
kbase_csf_scheduler_spin_unlock(kbdev, flags);
mutex_unlock(&kbdev->fw_load_lock);
goto end;
}
mutex_unlock(&kbdev->fw_load_lock);
kbase_csf_scheduler_pm_active(kbdev);
if (kbase_csf_scheduler_wait_mcu_active(kbdev)) {
dev_err(kbdev->dev,
"Unable to activate the MCU, the idle hysteresis value shall remain unchanged");
kbase_csf_scheduler_pm_idle(kbdev);
return kbdev->csf.gpu_idle_dur_count;
}
/* The 'reg_lock' is also taken and is held till the update is not
* complete, to ensure the update of idle timer value by multiple Users
* gets serialized.
*/
mutex_lock(&kbdev->csf.reg_lock);
/* The firmware only reads the new idle timer value when the timer is
* disabled.
*/
kbase_csf_scheduler_spin_lock(kbdev, &flags);
kbase_csf_firmware_disable_gpu_idle_timer(kbdev);
kbase_csf_scheduler_spin_unlock(kbdev, flags);
/* Ensure that the request has taken effect */
wait_for_global_request(kbdev, GLB_REQ_IDLE_DISABLE_MASK);
kbase_csf_scheduler_spin_lock(kbdev, &flags);
kbdev->csf.gpu_idle_hysteresis_ms = dur;
kbdev->csf.gpu_idle_dur_count = hysteresis_val;
kbase_csf_firmware_enable_gpu_idle_timer(kbdev);
kbase_csf_scheduler_spin_unlock(kbdev, flags);
wait_for_global_request(kbdev, GLB_REQ_IDLE_ENABLE_MASK);
mutex_unlock(&kbdev->csf.reg_lock);
kbase_csf_scheduler_pm_idle(kbdev);
end:
dev_dbg(kbdev->dev, "CSF set firmware idle hysteresis count-value: 0x%.8x",
hysteresis_val);
return hysteresis_val;
}
static u32 convert_dur_to_core_pwroff_count(struct kbase_device *kbdev, const u32 dur_us)
{
#define PWROFF_VAL_UNIT_SHIFT (10)
/* Get the cntfreq_el0 value, which drives the SYSTEM_TIMESTAMP */
u64 freq = arch_timer_get_cntfrq();
u64 dur_val = dur_us;
u32 cnt_val_u32, reg_val_u32;
bool src_system_timestamp = freq > 0;
if (!src_system_timestamp) {
/* Get the cycle_counter source alternative */
spin_lock(&kbdev->pm.clk_rtm.lock);
if (kbdev->pm.clk_rtm.clks[0])
freq = kbdev->pm.clk_rtm.clks[0]->clock_val;
else
dev_warn(kbdev->dev, "No GPU clock, unexpected integration issue!");
spin_unlock(&kbdev->pm.clk_rtm.lock);
dev_info(
kbdev->dev,
"Can't get the timestamp frequency, use cycle counter with MCU shader Core Poweroff timer!");
}
/* Formula for dur_val = ((dur_us/1e6) * freq_HZ) >> 10) */
dur_val = (dur_val * freq) >> HYSTERESIS_VAL_UNIT_SHIFT;
dur_val = div_u64(dur_val, 1000000);
/* Interface limits the value field to S32_MAX */
cnt_val_u32 = (dur_val > S32_MAX) ? S32_MAX : (u32)dur_val;
reg_val_u32 = GLB_PWROFF_TIMER_TIMEOUT_SET(0, cnt_val_u32);
/* add the source flag */
if (src_system_timestamp)
reg_val_u32 = GLB_PWROFF_TIMER_TIMER_SOURCE_SET(reg_val_u32,
GLB_PWROFF_TIMER_TIMER_SOURCE_SYSTEM_TIMESTAMP);
else
reg_val_u32 = GLB_PWROFF_TIMER_TIMER_SOURCE_SET(reg_val_u32,
GLB_PWROFF_TIMER_TIMER_SOURCE_GPU_COUNTER);
return reg_val_u32;
}
u32 kbase_csf_firmware_get_mcu_core_pwroff_time(struct kbase_device *kbdev)
{
u32 pwroff;
unsigned long flags;
spin_lock_irqsave(&kbdev->hwaccess_lock, flags);
pwroff = kbdev->csf.mcu_core_pwroff_dur_us;
spin_unlock_irqrestore(&kbdev->hwaccess_lock, flags);
return pwroff;
}
u32 kbase_csf_firmware_set_mcu_core_pwroff_time(struct kbase_device *kbdev, u32 dur)
{
unsigned long flags;
const u32 pwroff = convert_dur_to_core_pwroff_count(kbdev, dur);
spin_lock_irqsave(&kbdev->hwaccess_lock, flags);
kbdev->csf.mcu_core_pwroff_dur_us = dur;
kbdev->csf.mcu_core_pwroff_dur_count = pwroff;
spin_unlock_irqrestore(&kbdev->hwaccess_lock, flags);
dev_dbg(kbdev->dev, "MCU shader Core Poweroff input update: 0x%.8x", pwroff);
return pwroff;
}
/**
* kbase_device_csf_iterator_trace_init - Send request to enable iterator
* trace port.
* @kbdev: Kernel base device pointer
*
* Return: 0 on success (or if enable request is not sent), or error
* code -EINVAL on failure of GPU to acknowledge enable request.
*/
static int kbase_device_csf_iterator_trace_init(struct kbase_device *kbdev)
{
/* Enable the iterator trace port if supported by the GPU.
* It requires the GPU to have a nonzero "iter_trace_enable"
* property in the device tree, and the FW must advertise
* this feature in GLB_FEATURES.
*/
if (kbdev->pm.backend.gpu_powered) {
/* check device tree for iterator trace enable property */
const void *iter_trace_param = of_get_property(
kbdev->dev->of_node,
"iter_trace_enable", NULL);
const struct kbase_csf_global_iface *iface =
&kbdev->csf.global_iface;
if (iter_trace_param) {
u32 iter_trace_value = be32_to_cpup(iter_trace_param);
if ((iface->features &
GLB_FEATURES_ITER_TRACE_SUPPORTED_MASK) &&
iter_trace_value) {
long ack_timeout;
ack_timeout = kbase_csf_timeout_in_jiffies(
kbase_get_timeout_ms(kbdev, CSF_FIRMWARE_TIMEOUT));
/* write enable request to global input */
kbase_csf_firmware_global_input_mask(
iface, GLB_REQ,
GLB_REQ_ITER_TRACE_ENABLE_MASK,
GLB_REQ_ITER_TRACE_ENABLE_MASK);
/* Ring global doorbell */
kbase_csf_ring_doorbell(kbdev,
CSF_KERNEL_DOORBELL_NR);
ack_timeout = wait_event_timeout(
kbdev->csf.event_wait,
!((kbase_csf_firmware_global_input_read(
iface, GLB_REQ) ^
kbase_csf_firmware_global_output(
iface, GLB_ACK)) &
GLB_REQ_ITER_TRACE_ENABLE_MASK),
ack_timeout);
return ack_timeout ? 0 : -EINVAL;
}
}
}
return 0;
}
int kbase_csf_firmware_early_init(struct kbase_device *kbdev)
{
init_waitqueue_head(&kbdev->csf.event_wait);
kbdev->csf.interrupt_received = false;
kbdev->csf.fw_timeout_ms =
kbase_get_timeout_ms(kbdev, CSF_FIRMWARE_TIMEOUT);
kbdev->csf.mcu_core_pwroff_dur_us = DEFAULT_GLB_PWROFF_TIMEOUT_US;
kbdev->csf.mcu_core_pwroff_dur_count = convert_dur_to_core_pwroff_count(
kbdev, DEFAULT_GLB_PWROFF_TIMEOUT_US);
INIT_LIST_HEAD(&kbdev->csf.firmware_interfaces);
INIT_LIST_HEAD(&kbdev->csf.firmware_config);
INIT_LIST_HEAD(&kbdev->csf.firmware_timeline_metadata);
INIT_LIST_HEAD(&kbdev->csf.firmware_trace_buffers.list);
INIT_WORK(&kbdev->csf.firmware_reload_work,
kbase_csf_firmware_reload_worker);
INIT_WORK(&kbdev->csf.fw_error_work, firmware_error_worker);
mutex_init(&kbdev->csf.reg_lock);
kbdev->csf.fw = (struct kbase_csf_mcu_fw){ .data = NULL };
return 0;
}
void kbase_csf_firmware_early_term(struct kbase_device *kbdev)
{
mutex_destroy(&kbdev->csf.reg_lock);
}
int kbase_csf_firmware_late_init(struct kbase_device *kbdev)
{
kbdev->csf.gpu_idle_hysteresis_ms = FIRMWARE_IDLE_HYSTERESIS_TIME_MS;
#ifdef KBASE_PM_RUNTIME
if (kbase_pm_gpu_sleep_allowed(kbdev))
kbdev->csf.gpu_idle_hysteresis_ms /= FIRMWARE_IDLE_HYSTERESIS_GPU_SLEEP_SCALER;
#endif
WARN_ON(!kbdev->csf.gpu_idle_hysteresis_ms);
kbdev->csf.gpu_idle_dur_count =
convert_dur_to_idle_count(kbdev, kbdev->csf.gpu_idle_hysteresis_ms);
return 0;
}
int kbase_csf_firmware_load_init(struct kbase_device *kbdev)
{
const struct firmware *firmware = NULL;
struct kbase_csf_mcu_fw *const mcu_fw = &kbdev->csf.fw;
const u32 magic = FIRMWARE_HEADER_MAGIC;
u8 version_major, version_minor;
u32 version_hash;
u32 entry_end_offset;
u32 entry_offset;
int ret;
lockdep_assert_held(&kbdev->fw_load_lock);
if (WARN_ON((kbdev->as_free & MCU_AS_BITMASK) == 0))
return -EINVAL;
kbdev->as_free &= ~MCU_AS_BITMASK;
ret = kbase_mmu_init(kbdev, &kbdev->csf.mcu_mmu, NULL,
BASE_MEM_GROUP_DEFAULT);
if (ret != 0) {
/* Release the address space */
kbdev->as_free |= MCU_AS_BITMASK;
return ret;
}
ret = kbase_mcu_shared_interface_region_tracker_init(kbdev);
if (ret != 0) {
dev_err(kbdev->dev,
"Failed to setup the rb tree for managing shared interface segment\n");
goto err_out;
}
if (request_firmware(&firmware, fw_name, kbdev->dev) != 0) {
dev_err(kbdev->dev,
"Failed to load firmware image '%s'\n",
fw_name);
ret = -ENOENT;
} else {
/* Try to save a copy and then release the loaded firmware image */
mcu_fw->size = firmware->size;
mcu_fw->data = vmalloc((unsigned long)mcu_fw->size);
if (mcu_fw->data == NULL) {
ret = -ENOMEM;
} else {
memcpy(mcu_fw->data, firmware->data, mcu_fw->size);
dev_dbg(kbdev->dev, "Firmware image (%zu-bytes) retained in csf.fw\n",
mcu_fw->size);
}
release_firmware(firmware);
}
/* If error in loading or saving the image, branches to error out */
if (ret)
goto err_out;
if (mcu_fw->size < FIRMWARE_HEADER_LENGTH) {
dev_err(kbdev->dev, "Firmware too small\n");
ret = -EINVAL;
goto err_out;
}
if (memcmp(mcu_fw->data, &magic, sizeof(magic)) != 0) {
dev_err(kbdev->dev, "Incorrect firmware magic\n");
ret = -EINVAL;
goto err_out;
}
version_minor = mcu_fw->data[4];
version_major = mcu_fw->data[5];
if (version_major != FIRMWARE_HEADER_VERSION) {
dev_err(kbdev->dev,
"Firmware header version %d.%d not understood\n",
version_major, version_minor);
ret = -EINVAL;
goto err_out;
}
memcpy(&version_hash, &mcu_fw->data[8], sizeof(version_hash));
dev_notice(kbdev->dev, "Loading Mali firmware 0x%x", version_hash);
memcpy(&entry_end_offset, &mcu_fw->data[0x10], sizeof(entry_end_offset));
if (entry_end_offset > mcu_fw->size) {
dev_err(kbdev->dev, "Firmware image is truncated\n");
ret = -EINVAL;
goto err_out;
}
entry_offset = FIRMWARE_HEADER_LENGTH;
while (entry_offset < entry_end_offset) {
u32 header;
unsigned int size;
memcpy(&header, &mcu_fw->data[entry_offset], sizeof(header));
size = entry_size(header);
ret = load_firmware_entry(kbdev, mcu_fw, entry_offset, header);
if (ret != 0) {
dev_err(kbdev->dev, "Failed to load firmware image\n");
goto err_out;
}
entry_offset += size;
}
if (!kbdev->csf.shared_interface) {
dev_err(kbdev->dev, "Shared interface region not found\n");
ret = -EINVAL;
goto err_out;
} else {
ret = setup_shared_iface_static_region(kbdev);
if (ret != 0) {
dev_err(kbdev->dev, "Failed to insert a region for shared iface entry parsed from fw image\n");
goto err_out;
}
}
ret = kbase_csf_firmware_trace_buffers_init(kbdev);
if (ret != 0) {
dev_err(kbdev->dev, "Failed to initialize trace buffers\n");
goto err_out;
}
/* Make sure L2 cache is powered up */
kbase_pm_wait_for_l2_powered(kbdev);
/* Load the MMU tables into the selected address space */
load_mmu_tables(kbdev);
boot_csf_firmware(kbdev);
ret = parse_capabilities(kbdev);
if (ret != 0)
goto err_out;
ret = kbase_csf_doorbell_mapping_init(kbdev);
if (ret != 0)
goto err_out;
ret = kbase_csf_scheduler_init(kbdev);
if (ret != 0)
goto err_out;
ret = kbase_csf_setup_dummy_user_reg_page(kbdev);
if (ret != 0)
goto err_out;
ret = kbase_csf_timeout_init(kbdev);
if (ret != 0)
goto err_out;
ret = global_init_on_boot(kbdev);
if (ret != 0)
goto err_out;
ret = kbase_csf_firmware_cfg_init(kbdev);
if (ret != 0)
goto err_out;
ret = kbase_device_csf_iterator_trace_init(kbdev);
if (ret != 0)
goto err_out;
ret = kbase_csf_firmware_log_init(kbdev);
if (ret != 0) {
dev_err(kbdev->dev, "Failed to initialize FW trace (err %d)", ret);
goto err_out;
}
/* Firmware loaded successfully, ret = 0 */
KBASE_KTRACE_ADD(kbdev, CSF_FIRMWARE_BOOT, NULL,
(((u64)version_hash) << 32) |
(((u64)version_major) << 8) | version_minor);
return 0;
err_out:
kbase_csf_firmware_unload_term(kbdev);
return ret;
}
void kbase_csf_firmware_unload_term(struct kbase_device *kbdev)
{
unsigned long flags;
int ret = 0;
cancel_work_sync(&kbdev->csf.fw_error_work);
ret = kbase_reset_gpu_wait(kbdev);
WARN(ret, "failed to wait for GPU reset");
kbase_csf_firmware_log_term(kbdev);
kbase_csf_firmware_cfg_term(kbdev);
kbase_csf_timeout_term(kbdev);
kbase_csf_free_dummy_user_reg_page(kbdev);
kbase_csf_scheduler_term(kbdev);
kbase_csf_doorbell_mapping_term(kbdev);
/* Explicitly trigger the disabling of MCU through the state machine and
* wait for its completion. It may not have been disabled yet due to the
* power policy.
*/
kbdev->pm.backend.mcu_desired = false;
kbase_pm_wait_for_desired_state(kbdev);
free_global_iface(kbdev);
spin_lock_irqsave(&kbdev->hwaccess_lock, flags);
kbdev->csf.firmware_inited = false;
if (WARN_ON(kbdev->pm.backend.mcu_state != KBASE_MCU_OFF)) {
kbdev->pm.backend.mcu_state = KBASE_MCU_OFF;
stop_csf_firmware(kbdev);
}
spin_unlock_irqrestore(&kbdev->hwaccess_lock, flags);
unload_mmu_tables(kbdev);
kbase_csf_firmware_trace_buffers_term(kbdev);
while (!list_empty(&kbdev->csf.firmware_interfaces)) {
struct kbase_csf_firmware_interface *interface;
interface =
list_first_entry(&kbdev->csf.firmware_interfaces,
struct kbase_csf_firmware_interface,
node);
list_del(&interface->node);
vunmap(interface->kernel_map);
if (!interface->reuse_pages) {
if (interface->flags & CSF_FIRMWARE_ENTRY_PROTECTED) {
kbase_csf_protected_memory_free(
kbdev, interface->pma, interface->num_pages_aligned,
interface->is_small_page);
} else {
kbase_mem_pool_free_pages(
kbase_mem_pool_group_select(
kbdev, KBASE_MEM_GROUP_CSF_FW,
interface->is_small_page),
interface->num_pages_aligned,
interface->phys,
true, false);
}
kfree(interface->phys);
}
kfree(interface);
}
while (!list_empty(&kbdev->csf.firmware_timeline_metadata)) {
struct firmware_timeline_metadata *metadata;
metadata = list_first_entry(
&kbdev->csf.firmware_timeline_metadata,
struct firmware_timeline_metadata,
node);
list_del(&metadata->node);
kfree(metadata);
}
if (kbdev->csf.fw.data) {
/* Free the copy of the firmware image */
vfree(kbdev->csf.fw.data);
kbdev->csf.fw.data = NULL;
dev_dbg(kbdev->dev, "Free retained image csf.fw (%zu-bytes)\n", kbdev->csf.fw.size);
}
/* This will also free up the region allocated for the shared interface
* entry parsed from the firmware image.
*/
kbase_mcu_shared_interface_region_tracker_term(kbdev);
kbase_mmu_term(kbdev, &kbdev->csf.mcu_mmu);
/* Release the address space */
kbdev->as_free |= MCU_AS_BITMASK;
}
void kbase_csf_firmware_enable_gpu_idle_timer(struct kbase_device *kbdev)
{
struct kbase_csf_global_iface *global_iface = &kbdev->csf.global_iface;
const u32 glb_req = kbase_csf_firmware_global_input_read(global_iface, GLB_REQ);
kbase_csf_scheduler_spin_lock_assert_held(kbdev);
/* The scheduler is assumed to only call the enable when its internal
* state indicates that the idle timer has previously been disabled. So
* on entry the expected field values are:
* 1. GLOBAL_INPUT_BLOCK.GLB_REQ.IDLE_ENABLE: 0
* 2. GLOBAL_OUTPUT_BLOCK.GLB_ACK.IDLE_ENABLE: 0, or, on 1 -> 0
*/
if (glb_req & GLB_REQ_IDLE_ENABLE_MASK)
dev_err(kbdev->dev, "Incoherent scheduler state on REQ_IDLE_ENABLE!");
enable_gpu_idle_timer(kbdev);
kbase_csf_ring_doorbell(kbdev, CSF_KERNEL_DOORBELL_NR);
}
void kbase_csf_firmware_disable_gpu_idle_timer(struct kbase_device *kbdev)
{
struct kbase_csf_global_iface *global_iface = &kbdev->csf.global_iface;
kbase_csf_scheduler_spin_lock_assert_held(kbdev);
kbase_csf_firmware_global_input_mask(global_iface, GLB_REQ,
GLB_REQ_REQ_IDLE_DISABLE,
GLB_REQ_IDLE_DISABLE_MASK);
dev_dbg(kbdev->dev, "Sending request to disable gpu idle timer");
kbase_csf_ring_doorbell(kbdev, CSF_KERNEL_DOORBELL_NR);
}
void kbase_csf_firmware_ping(struct kbase_device *const kbdev)
{
const struct kbase_csf_global_iface *const global_iface =
&kbdev->csf.global_iface;
unsigned long flags;
kbase_csf_scheduler_spin_lock(kbdev, &flags);
set_global_request(global_iface, GLB_REQ_PING_MASK);
kbase_csf_ring_doorbell(kbdev, CSF_KERNEL_DOORBELL_NR);
kbase_csf_scheduler_spin_unlock(kbdev, flags);
}
int kbase_csf_firmware_ping_wait(struct kbase_device *const kbdev, unsigned int wait_timeout_ms)
{
kbase_csf_firmware_ping(kbdev);
return wait_for_global_request_with_timeout(kbdev, GLB_REQ_PING_MASK, wait_timeout_ms);
}
int kbase_csf_firmware_set_timeout(struct kbase_device *const kbdev,
u64 const timeout)
{
const struct kbase_csf_global_iface *const global_iface =
&kbdev->csf.global_iface;
unsigned long flags;
int err;
/* The 'reg_lock' is also taken and is held till the update is not
* complete, to ensure the update of timeout value by multiple Users
* gets serialized.
*/
mutex_lock(&kbdev->csf.reg_lock);
kbase_csf_scheduler_spin_lock(kbdev, &flags);
set_timeout_global(global_iface, timeout);
kbase_csf_ring_doorbell(kbdev, CSF_KERNEL_DOORBELL_NR);
kbase_csf_scheduler_spin_unlock(kbdev, flags);
err = wait_for_global_request(kbdev, GLB_REQ_CFG_PROGRESS_TIMER_MASK);
mutex_unlock(&kbdev->csf.reg_lock);
return err;
}
void kbase_csf_enter_protected_mode(struct kbase_device *kbdev)
{
struct kbase_csf_global_iface *global_iface = &kbdev->csf.global_iface;
KBASE_TLSTREAM_AUX_PROTECTED_ENTER_START(kbdev, kbdev);
kbase_csf_scheduler_spin_lock_assert_held(kbdev);
set_global_request(global_iface, GLB_REQ_PROTM_ENTER_MASK);
dev_dbg(kbdev->dev, "Sending request to enter protected mode");
kbase_csf_ring_doorbell(kbdev, CSF_KERNEL_DOORBELL_NR);
}
int kbase_csf_wait_protected_mode_enter(struct kbase_device *kbdev)
{
int err;
lockdep_assert_held(&kbdev->mmu_hw_mutex);
err = wait_for_global_request(kbdev, GLB_REQ_PROTM_ENTER_MASK);
if (!err) {
#define WAIT_TIMEOUT 5000 /* 50ms timeout */
#define DELAY_TIME_IN_US 10
const int max_iterations = WAIT_TIMEOUT;
int loop;
/* Wait for the GPU to actually enter protected mode */
for (loop = 0; loop < max_iterations; loop++) {
unsigned long flags;
bool pmode_exited;
if (kbase_reg_read(kbdev, GPU_CONTROL_REG(GPU_STATUS)) &
GPU_STATUS_PROTECTED_MODE_ACTIVE)
break;
/* Check if GPU already exited the protected mode */
kbase_csf_scheduler_spin_lock(kbdev, &flags);
pmode_exited =
!kbase_csf_scheduler_protected_mode_in_use(kbdev);
kbase_csf_scheduler_spin_unlock(kbdev, flags);
if (pmode_exited)
break;
udelay(DELAY_TIME_IN_US);
}
if (loop == max_iterations) {
dev_err(kbdev->dev, "Timeout for actual pmode entry after PROTM_ENTER ack");
err = -ETIMEDOUT;
}
}
if (unlikely(err)) {
if (kbase_prepare_to_reset_gpu(kbdev, RESET_FLAGS_HWC_UNRECOVERABLE_ERROR))
kbase_reset_gpu(kbdev);
}
KBASE_TLSTREAM_AUX_PROTECTED_ENTER_END(kbdev, kbdev);
return err;
}
void kbase_csf_firmware_trigger_mcu_halt(struct kbase_device *kbdev)
{
struct kbase_csf_global_iface *global_iface = &kbdev->csf.global_iface;
unsigned long flags;
KBASE_TLSTREAM_TL_KBASE_CSFFW_FW_REQUEST_HALT(kbdev, kbase_backend_get_cycle_cnt(kbdev));
kbase_csf_scheduler_spin_lock(kbdev, &flags);
/* Validate there are no on-slot groups when sending the
* halt request to firmware.
*/
WARN_ON(kbase_csf_scheduler_get_nr_active_csgs_locked(kbdev));
set_global_request(global_iface, GLB_REQ_HALT_MASK);
dev_dbg(kbdev->dev, "Sending request to HALT MCU");
kbase_csf_ring_doorbell(kbdev, CSF_KERNEL_DOORBELL_NR);
kbase_csf_scheduler_spin_unlock(kbdev, flags);
}
void kbase_csf_firmware_enable_mcu(struct kbase_device *kbdev)
{
KBASE_TLSTREAM_TL_KBASE_CSFFW_FW_ENABLING(kbdev, kbase_backend_get_cycle_cnt(kbdev));
/* Trigger the boot of MCU firmware, Use the AUTO mode as
* otherwise on fast reset, to exit protected mode, MCU will
* not reboot by itself to enter normal mode.
*/
kbase_reg_write(kbdev, GPU_CONTROL_REG(MCU_CONTROL), MCU_CNTRL_AUTO);
}
#ifdef KBASE_PM_RUNTIME
void kbase_csf_firmware_trigger_mcu_sleep(struct kbase_device *kbdev)
{
struct kbase_csf_global_iface *global_iface = &kbdev->csf.global_iface;
unsigned long flags;
KBASE_TLSTREAM_TL_KBASE_CSFFW_FW_REQUEST_SLEEP(kbdev, kbase_backend_get_cycle_cnt(kbdev));
kbase_csf_scheduler_spin_lock(kbdev, &flags);
set_global_request(global_iface, GLB_REQ_SLEEP_MASK);
dev_dbg(kbdev->dev, "Sending sleep request to MCU");
kbase_csf_ring_doorbell(kbdev, CSF_KERNEL_DOORBELL_NR);
kbase_csf_scheduler_spin_unlock(kbdev, flags);
}
bool kbase_csf_firmware_is_mcu_in_sleep(struct kbase_device *kbdev)
{
lockdep_assert_held(&kbdev->hwaccess_lock);
return (global_request_complete(kbdev, GLB_REQ_SLEEP_MASK) &&
kbase_csf_firmware_mcu_halted(kbdev));
}
#endif
int kbase_csf_trigger_firmware_config_update(struct kbase_device *kbdev)
{
struct kbase_csf_global_iface *global_iface = &kbdev->csf.global_iface;
unsigned long flags;
int err = 0;
/* Ensure GPU is powered-up until we complete config update.*/
kbase_csf_scheduler_pm_active(kbdev);
kbase_csf_scheduler_wait_mcu_active(kbdev);
/* The 'reg_lock' is also taken and is held till the update is
* complete, to ensure the config update gets serialized.
*/
mutex_lock(&kbdev->csf.reg_lock);
kbase_csf_scheduler_spin_lock(kbdev, &flags);
set_global_request(global_iface, GLB_REQ_FIRMWARE_CONFIG_UPDATE_MASK);
dev_dbg(kbdev->dev, "Sending request for FIRMWARE_CONFIG_UPDATE");
kbase_csf_ring_doorbell(kbdev, CSF_KERNEL_DOORBELL_NR);
kbase_csf_scheduler_spin_unlock(kbdev, flags);
err = wait_for_global_request(kbdev,
GLB_REQ_FIRMWARE_CONFIG_UPDATE_MASK);
mutex_unlock(&kbdev->csf.reg_lock);
kbase_csf_scheduler_pm_idle(kbdev);
return err;
}
/**
* copy_grp_and_stm - Copy CS and/or group data
*
* @iface: Global CSF interface provided by the firmware.
* @group_data: Pointer where to store all the group data
* (sequentially).
* @max_group_num: The maximum number of groups to be read. Can be 0, in
* which case group_data is unused.
* @stream_data: Pointer where to store all the CS data
* (sequentially).
* @max_total_stream_num: The maximum number of CSs to be read.
* Can be 0, in which case stream_data is unused.
*
* Return: Total number of CSs, summed across all groups.
*/
static u32 copy_grp_and_stm(
const struct kbase_csf_global_iface * const iface,
struct basep_cs_group_control * const group_data,
u32 max_group_num,
struct basep_cs_stream_control * const stream_data,
u32 max_total_stream_num)
{
u32 i, total_stream_num = 0;
if (WARN_ON((max_group_num > 0) && !group_data))
max_group_num = 0;
if (WARN_ON((max_total_stream_num > 0) && !stream_data))
max_total_stream_num = 0;
for (i = 0; i < iface->group_num; i++) {
u32 j;
if (i < max_group_num) {
group_data[i].features = iface->groups[i].features;
group_data[i].stream_num = iface->groups[i].stream_num;
group_data[i].suspend_size =
iface->groups[i].suspend_size;
}
for (j = 0; j < iface->groups[i].stream_num; j++) {
if (total_stream_num < max_total_stream_num)
stream_data[total_stream_num].features =
iface->groups[i].streams[j].features;
total_stream_num++;
}
}
return total_stream_num;
}
u32 kbase_csf_firmware_get_glb_iface(
struct kbase_device *kbdev,
struct basep_cs_group_control *const group_data,
u32 const max_group_num,
struct basep_cs_stream_control *const stream_data,
u32 const max_total_stream_num, u32 *const glb_version,
u32 *const features, u32 *const group_num, u32 *const prfcnt_size,
u32 *instr_features)
{
const struct kbase_csf_global_iface * const iface =
&kbdev->csf.global_iface;
if (WARN_ON(!glb_version) || WARN_ON(!features) ||
WARN_ON(!group_num) || WARN_ON(!prfcnt_size) ||
WARN_ON(!instr_features))
return 0;
*glb_version = iface->version;
*features = iface->features;
*group_num = iface->group_num;
*prfcnt_size = iface->prfcnt_size;
*instr_features = iface->instr_features;
return copy_grp_and_stm(iface, group_data, max_group_num,
stream_data, max_total_stream_num);
}
const char *kbase_csf_firmware_get_timeline_metadata(
struct kbase_device *kbdev, const char *name, size_t *size)
{
struct firmware_timeline_metadata *metadata;
list_for_each_entry(
metadata, &kbdev->csf.firmware_timeline_metadata, node) {
if (!strcmp(metadata->name, name)) {
*size = metadata->size;
return metadata->data;
}
}
*size = 0;
return NULL;
}
int kbase_csf_firmware_mcu_shared_mapping_init(
struct kbase_device *kbdev,
unsigned int num_pages,
unsigned long cpu_map_properties,
unsigned long gpu_map_properties,
struct kbase_csf_mapping *csf_mapping)
{
struct tagged_addr *phys;
struct kbase_va_region *va_reg;
struct page **page_list;
void *cpu_addr;
int i, ret = 0;
pgprot_t cpu_map_prot = PAGE_KERNEL;
unsigned long gpu_map_prot;
if (cpu_map_properties & PROT_READ)
cpu_map_prot = PAGE_KERNEL_RO;
if (kbdev->system_coherency == COHERENCY_ACE) {
gpu_map_prot =
KBASE_REG_MEMATTR_INDEX(AS_MEMATTR_INDEX_DEFAULT_ACE);
} else {
gpu_map_prot =
KBASE_REG_MEMATTR_INDEX(AS_MEMATTR_INDEX_NON_CACHEABLE);
cpu_map_prot = pgprot_writecombine(cpu_map_prot);
}
phys = kmalloc_array(num_pages, sizeof(*phys), GFP_KERNEL);
if (!phys)
goto out;
page_list = kmalloc_array(num_pages, sizeof(*page_list), GFP_KERNEL);
if (!page_list)
goto page_list_alloc_error;
ret = kbase_mem_pool_alloc_pages(
&kbdev->mem_pools.small[KBASE_MEM_GROUP_CSF_FW],
num_pages, phys, false);
if (ret <= 0)
goto phys_mem_pool_alloc_error;
for (i = 0; i < num_pages; i++)
page_list[i] = as_page(phys[i]);
cpu_addr = vmap(page_list, num_pages, VM_MAP, cpu_map_prot);
if (!cpu_addr)
goto vmap_error;
va_reg = kbase_alloc_free_region(&kbdev->csf.shared_reg_rbtree, 0,
num_pages, KBASE_REG_ZONE_MCU_SHARED);
if (!va_reg)
goto va_region_alloc_error;
mutex_lock(&kbdev->csf.reg_lock);
ret = kbase_add_va_region_rbtree(kbdev, va_reg, 0, num_pages, 1);
va_reg->flags &= ~KBASE_REG_FREE;
if (ret)
goto va_region_add_error;
mutex_unlock(&kbdev->csf.reg_lock);
gpu_map_properties &= (KBASE_REG_GPU_RD | KBASE_REG_GPU_WR);
gpu_map_properties |= gpu_map_prot;
ret = kbase_mmu_insert_pages_no_flush(kbdev, &kbdev->csf.mcu_mmu, va_reg->start_pfn,
&phys[0], num_pages, gpu_map_properties,
KBASE_MEM_GROUP_CSF_FW, NULL);
if (ret)
goto mmu_insert_pages_error;
kfree(page_list);
csf_mapping->phys = phys;
csf_mapping->cpu_addr = cpu_addr;
csf_mapping->va_reg = va_reg;
csf_mapping->num_pages = num_pages;
return 0;
mmu_insert_pages_error:
mutex_lock(&kbdev->csf.reg_lock);
kbase_remove_va_region(kbdev, va_reg);
va_region_add_error:
kbase_free_alloced_region(va_reg);
mutex_unlock(&kbdev->csf.reg_lock);
va_region_alloc_error:
vunmap(cpu_addr);
vmap_error:
kbase_mem_pool_free_pages(
&kbdev->mem_pools.small[KBASE_MEM_GROUP_CSF_FW],
num_pages, phys, false, false);
phys_mem_pool_alloc_error:
kfree(page_list);
page_list_alloc_error:
kfree(phys);
out:
/* Zero-initialize the mapping to make sure that the termination
* function doesn't try to unmap or free random addresses.
*/
csf_mapping->phys = NULL;
csf_mapping->cpu_addr = NULL;
csf_mapping->va_reg = NULL;
csf_mapping->num_pages = 0;
return -ENOMEM;
}
void kbase_csf_firmware_mcu_shared_mapping_term(
struct kbase_device *kbdev, struct kbase_csf_mapping *csf_mapping)
{
if (csf_mapping->va_reg) {
mutex_lock(&kbdev->csf.reg_lock);
kbase_remove_va_region(kbdev, csf_mapping->va_reg);
kbase_free_alloced_region(csf_mapping->va_reg);
mutex_unlock(&kbdev->csf.reg_lock);
}
if (csf_mapping->phys) {
kbase_mem_pool_free_pages(
&kbdev->mem_pools.small[KBASE_MEM_GROUP_CSF_FW],
csf_mapping->num_pages, csf_mapping->phys, false,
false);
}
vunmap(csf_mapping->cpu_addr);
kfree(csf_mapping->phys);
}