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kernel_samsung_sm7125/drivers/gpu/msm/kgsl_pool.c

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/* Copyright (c) 2016-2017, 2019-2020, The Linux Foundation. All rights reserved.
* Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* 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.
*
*/
#include <linux/vmalloc.h>
#include <asm/cacheflush.h>
#include <linux/slab.h>
#include <linux/highmem.h>
#include <linux/version.h>
#include "kgsl.h"
#include "kgsl_device.h"
#include "kgsl_pool.h"
#define KGSL_MAX_POOLS 4
#define KGSL_MAX_POOL_ORDER 8
#define KGSL_MAX_RESERVED_PAGES 4096
/**
* struct kgsl_page_pool - Structure to hold information for the pool
* @pool_order: Page order describing the size of the page
* @page_count: Number of pages currently present in the pool
* @reserved_pages: Number of pages reserved at init for the pool
* @allocation_allowed: Tells if reserved pool gets exhausted, can we allocate
* from system memory
* @list_lock: Spinlock for page list in the pool
* @page_list: List of pages held/reserved in this pool
*/
struct kgsl_page_pool {
unsigned int pool_order;
int page_count;
unsigned int reserved_pages;
bool allocation_allowed;
spinlock_t list_lock;
struct list_head page_list;
};
static struct kgsl_page_pool kgsl_pools[KGSL_MAX_POOLS];
static int kgsl_num_pools;
static int kgsl_pool_max_pages;
/* Returns KGSL pool corresponding to input page order*/
static struct kgsl_page_pool *
_kgsl_get_pool_from_order(unsigned int order)
{
int i;
for (i = 0; i < kgsl_num_pools; i++) {
if (kgsl_pools[i].pool_order == order)
return &kgsl_pools[i];
}
return NULL;
}
/* Map the page into kernel and zero it out */
static void
_kgsl_pool_zero_page(struct page *p, unsigned int pool_order)
{
int i;
for (i = 0; i < (1 << pool_order); i++) {
struct page *page = nth_page(p, i);
void *addr = kmap_atomic(page);
memset(addr, 0, PAGE_SIZE);
dmac_flush_range(addr, addr + PAGE_SIZE);
kunmap_atomic(addr);
}
}
/* Add a page to specified pool */
static void
_kgsl_pool_add_page(struct kgsl_page_pool *pool, struct page *p)
{
/*
* Sanity check to make sure we don't re-pool a page that
* somebody else has a reference to.
*/
if (WARN_ON_ONCE(unlikely(page_count(p) > 1))) {
__free_pages(p, pool->pool_order);
return;
}
_kgsl_pool_zero_page(p, pool->pool_order);
spin_lock(&pool->list_lock);
list_add_tail(&p->lru, &pool->page_list);
pool->page_count++;
spin_unlock(&pool->list_lock);
Merge android-4.14.159 (f960b38) into msm-4.14 * refs/heads/tmp-f960b38: Linux 4.14.159 of: unittest: fix memory leak in attach_node_and_children raid5: need to set STRIPE_HANDLE for batch head gpiolib: acpi: Add Terra Pad 1061 to the run_edge_events_on_boot_blacklist kernel/module.c: wakeup processes in module_wq on module unload gfs2: fix glock reference problem in gfs2_trans_remove_revoke net/mlx5e: Fix SFF 8472 eeprom length sunrpc: fix crash when cache_head become valid before update workqueue: Fix missing kfree(rescuer) in destroy_workqueue() blk-mq: make sure that line break can be printed mfd: rk808: Fix RK818 ID template ext4: fix a bug in ext4_wait_for_tail_page_commit mm/shmem.c: cast the type of unmap_start to u64 firmware: qcom: scm: Ensure 'a0' status code is treated as signed ext4: work around deleting a file with i_nlink == 0 safely powerpc: Fix vDSO clock_getres() powerpc: Avoid clang warnings around setjmp and longjmp ath10k: fix fw crash by moving chip reset after napi disabled media: vimc: fix component match compare mlxsw: spectrum_router: Refresh nexthop neighbour when it becomes dead power: supply: cpcap-battery: Fix signed counter sample register x86/MCE/AMD: Carve out the MC4_MISC thresholding quirk x86/MCE/AMD: Turn off MC4_MISC thresholding on all family 0x15 models e100: Fix passing zero to 'PTR_ERR' warning in e100_load_ucode_wait drbd: Change drbd_request_detach_interruptible's return type to int scsi: lpfc: Correct code setting non existent bits in sli4 ABORT WQE scsi: lpfc: Cap NPIV vports to 256 omap: pdata-quirks: remove openpandora quirks for mmc3 and wl1251 phy: renesas: rcar-gen3-usb2: Fix sysfs interface of "role" iio: adis16480: Add debugfs_reg_access entry xhci: make sure interrupts are restored to correct state xhci: Fix memory leak in xhci_add_in_port() scsi: qla2xxx: Fix message indicating vectors used by driver scsi: qla2xxx: Always check the qla2x00_wait_for_hba_online() return value scsi: qla2xxx: Fix qla24xx_process_bidir_cmd() scsi: qla2xxx: Fix session lookup in qlt_abort_work() scsi: qla2xxx: Fix DMA unmap leak scsi: zfcp: trace channel log even for FCP command responses block: fix single range discard merge reiserfs: fix extended attributes on the root directory ext4: Fix credit estimate for final inode freeing quota: fix livelock in dquot_writeback_dquots ext2: check err when partial != NULL quota: Check that quota is not dirty before release video/hdmi: Fix AVI bar unpack powerpc/xive: Skip ioremap() of ESB pages for LSI interrupts powerpc: Allow flush_icache_range to work across ranges >4GB powerpc/xive: Prevent page fault issues in the machine crash handler powerpc: Allow 64bit VDSO __kernel_sync_dicache to work across ranges >4GB ppdev: fix PPGETTIME/PPSETTIME ioctls ARM: dts: omap3-tao3530: Fix incorrect MMC card detection GPIO polarity mmc: host: omap_hsmmc: add code for special init of wl1251 to get rid of pandora_wl1251_init_card pinctrl: samsung: Fix device node refcount leaks in S3C64xx wakeup controller init pinctrl: samsung: Fix device node refcount leaks in init code pinctrl: samsung: Fix device node refcount leaks in S3C24xx wakeup controller init pinctrl: samsung: Add of_node_put() before return in error path ACPI: PM: Avoid attaching ACPI PM domain to certain devices ACPI: bus: Fix NULL pointer check in acpi_bus_get_private_data() ACPI: OSL: only free map once in osl.c cpufreq: powernv: fix stack bloat and hard limit on number of CPUs PM / devfreq: Lock devfreq in trans_stat_show intel_th: pci: Add Tiger Lake CPU support intel_th: pci: Add Ice Lake CPU support intel_th: Fix a double put_device() in error path cpuidle: Do not unset the driver if it is there already media: cec.h: CEC_OP_REC_FLAG_ values were swapped media: radio: wl1273: fix interrupt masking on release media: bdisp: fix memleak on release s390/mm: properly clear _PAGE_NOEXEC bit when it is not supported ar5523: check NULL before memcpy() in ar5523_cmd() cgroup: pids: use atomic64_t for pids->limit blk-mq: avoid sysfs buffer overflow with too many CPU cores ASoC: Jack: Fix NULL pointer dereference in snd_soc_jack_report workqueue: Fix pwq ref leak in rescuer_thread() workqueue: Fix spurious sanity check failures in destroy_workqueue() dm zoned: reduce overhead of backing device checks hwrng: omap - Fix RNG wait loop timeout watchdog: aspeed: Fix clock behaviour for ast2600 md/raid0: Fix an error message in raid0_make_request() ALSA: hda - Fix pending unsol events at shutdown ovl: relax WARN_ON() on rename to self lib: raid6: fix awk build warnings rtlwifi: rtl8192de: Fix missing enable interrupt flag rtlwifi: rtl8192de: Fix missing callback that tests for hw release of buffer rtlwifi: rtl8192de: Fix missing code to retrieve RX buffer address btrfs: record all roots for rename exchange on a subvol Btrfs: send, skip backreference walking for extents with many references btrfs: Remove btrfs_bio::flags member Btrfs: fix negative subv_writers counter and data space leak after buffered write btrfs: use refcount_inc_not_zero in kill_all_nodes btrfs: check page->mapping when loading free space cache usb: dwc3: ep0: Clear started flag on completion virtio-balloon: fix managed page counts when migrating pages between zones mtd: spear_smi: Fix Write Burst mode tpm: add check after commands attribs tab allocation usb: mon: Fix a deadlock in usbmon between mmap and read usb: core: urb: fix URB structure initialization function USB: adutux: fix interface sanity check USB: serial: io_edgeport: fix epic endpoint lookup USB: idmouse: fix interface sanity checks USB: atm: ueagle-atm: add missing endpoint check iio: humidity: hdc100x: fix IIO_HUMIDITYRELATIVE channel reporting ARM: dts: pandora-common: define wl1251 as child node of mmc3 xhci: handle some XHCI_TRUST_TX_LENGTH quirks cases as default behaviour. xhci: Increase STS_HALT timeout in xhci_suspend() usb: xhci: only set D3hot for pci device staging: gigaset: add endpoint-type sanity check staging: gigaset: fix illegal free on probe errors staging: gigaset: fix general protection fault on probe staging: rtl8712: fix interface sanity check staging: rtl8188eu: fix interface sanity check usb: Allow USB device to be warm reset in suspended state USB: documentation: flags on usb-storage versus UAS USB: uas: heed CAPACITY_HEURISTICS USB: uas: honor flag to avoid CAPACITY16 media: venus: remove invalid compat_ioctl32 handler scsi: qla2xxx: Fix driver unload hang usb: gadget: pch_udc: fix use after free usb: gadget: configfs: Fix missing spin_lock_init() appletalk: Set error code if register_snap_client failed appletalk: Fix potential NULL pointer dereference in unregister_snap_client KVM: x86: fix out-of-bounds write in KVM_GET_EMULATED_CPUID (CVE-2019-19332) ASoC: rsnd: fixup MIX kctrl registration binder: Handle start==NULL in binder_update_page_range() thermal: Fix deadlock in thermal thermal_zone_device_check iomap: Fix pipe page leakage during splicing RDMA/qib: Validate ->show()/store() callbacks before calling them spi: atmel: Fix CS high support crypto: user - fix memory leak in crypto_report crypto: ecdh - fix big endian bug in ECC library crypto: ccp - fix uninitialized list head crypto: af_alg - cast ki_complete ternary op to int crypto: crypto4xx - fix double-free in crypto4xx_destroy_sdr KVM: x86: fix presentation of TSX feature in ARCH_CAPABILITIES KVM: x86: do not modify masked bits of shared MSRs KVM: arm/arm64: vgic: Don't rely on the wrong pending table drm/i810: Prevent underflow in ioctl jbd2: Fix possible overflow in jbd2_log_space_left() kernfs: fix ino wrap-around detection can: slcan: Fix use-after-free Read in slcan_open tty: vt: keyboard: reject invalid keycodes CIFS: Fix SMB2 oplock break processing CIFS: Fix NULL-pointer dereference in smb2_push_mandatory_locks x86/PCI: Avoid AMD FCH XHCI USB PME# from D0 defect Input: Fix memory leak in psxpad_spi_probe coresight: etm4x: Fix input validation for sysfs. Input: goodix - add upside-down quirk for Teclast X89 tablet Input: synaptics-rmi4 - don't increment rmiaddr for SMBus transfers Input: synaptics-rmi4 - re-enable IRQs in f34v7_do_reflash Input: synaptics - switch another X1 Carbon 6 to RMI/SMbus ALSA: hda - Add mute led support for HP ProBook 645 G4 ALSA: pcm: oss: Avoid potential buffer overflows ALSA: hda/realtek - Dell headphone has noise on unmute for ALC236 fuse: verify attributes fuse: verify nlink sched/fair: Scale bandwidth quota and period without losing quota/period ratio precision tcp: exit if nothing to retransmit on RTO timeout net: aquantia: fix RSS table and key sizes media: vimc: fix start stream when link is disabled ARM: dts: sunxi: Fix PMU compatible strings usb: mtu3: fix dbginfo in qmu_tx_zlp_error_handler mlx4: Use snprintf instead of complicated strcpy IB/hfi1: Close VNIC sdma_progress sleep window IB/hfi1: Ignore LNI errors before DC8051 transitions to Polling state mlxsw: spectrum_router: Relax GRE decap matching check firmware: qcom: scm: fix compilation error when disabled media: stkwebcam: Bugfix for wrong return values tty: Don't block on IO when ldisc change is pending nfsd: Return EPERM, not EACCES, in some SETATTR cases MIPS: OCTEON: cvmx_pko_mem_debug8: use oldest forward compatible definition clk: renesas: r8a77995: Correct parent clock of DU powerpc/math-emu: Update macros from GCC pstore/ram: Avoid NULL deref in ftrace merging failure path net/mlx4_core: Fix return codes of unsupported operations dlm: fix invalid cluster name warning ARM: dts: realview: Fix some more duplicate regulator nodes clk: sunxi-ng: h3/h5: Fix CSI_MCLK parent ARM: dts: pxa: clean up USB controller nodes mtd: fix mtd_oobavail() incoherent returned value kbuild: fix single target build for external module modpost: skip ELF local symbols during section mismatch check tcp: fix SNMP TCP timeout under-estimation tcp: fix SNMP under-estimation on failed retransmission tcp: fix off-by-one bug on aborting window-probing socket ARM: dts: realview-pbx: Fix duplicate regulator nodes ARM: dts: mmp2: fix the gpio interrupt cell number net/x25: fix null_x25_address handling net/x25: fix called/calling length calculation in x25_parse_address_block arm64: dts: meson-gxl-khadas-vim: fix GPIO lines names arm64: dts: meson-gxbb-odroidc2: fix GPIO lines names arm64: dts: meson-gxbb-nanopi-k2: fix GPIO lines names arm64: dts: meson-gxl-libretech-cc: fix GPIO lines names ARM: OMAP1/2: fix SoC name printing ASoC: au8540: use 64-bit arithmetic instead of 32-bit nfsd: fix a warning in __cld_pipe_upcall() ARM: debug: enable UART1 for socfpga Cyclone5 dlm: NULL check before kmem_cache_destroy is not needed ARM: dts: sun8i: v3s: Change pinctrl nodes to avoid warning ARM: dts: sun5i: a10s: Fix HDMI output DTC warning ASoC: rsnd: tidyup registering method for rsnd_kctrl_new() lockd: fix decoding of TEST results i2c: imx: don't print error message on probe defer serial: imx: fix error handling in console_setup altera-stapl: check for a null key before strcasecmp'ing it dma-mapping: fix return type of dma_set_max_seg_size() sparc: Correct ctx->saw_frame_pointer logic. f2fs: fix to allow node segment for GC by ioctl path ARM: dts: rockchip: Assign the proper GPIO clocks for rv1108 ARM: dts: rockchip: Fix the PMU interrupt number for rv1108 f2fs: change segment to section in f2fs_ioc_gc_range f2fs: fix count of seg_freed to make sec_freed correct ACPI: fix acpi_find_child_device() invocation in acpi_preset_companion() usb: dwc3: don't log probe deferrals; but do log other error codes usb: dwc3: debugfs: Properly print/set link state for HS dmaengine: dw-dmac: implement dma protection control setting dmaengine: coh901318: Remove unused variable dmaengine: coh901318: Fix a double-lock bug media: cec: report Vendor ID after initialization media: pulse8-cec: return 0 when invalidating the logical address ARM: dts: exynos: Use Samsung SoC specific compatible for DWC2 module rtc: dt-binding: abx80x: fix resistance scale rtc: max8997: Fix the returned value in case of error in 'max8997_rtc_read_alarm()' math-emu/soft-fp.h: (_FP_ROUND_ZERO) cast 0 to void to fix warning net/smc: use after free fix in smc_wr_tx_put_slot() MIPS: OCTEON: octeon-platform: fix typing iomap: sub-block dio needs to zeroout beyond EOF net-next/hinic:fix a bug in set mac address regulator: Fix return value of _set_load() stub clk: rockchip: fix ID of 8ch clock of I2S1 for rk3328 clk: rockchip: fix I2S1 clock gate register for rk3328 mm/vmstat.c: fix NUMA statistics updates Staging: iio: adt7316: Fix i2c data reading, set the data field pinctrl: qcom: ssbi-gpio: fix gpio-hog related boot issues crypto: bcm - fix normal/non key hash algorithm failure crypto: ecc - check for invalid values in the key verification test scsi: zfcp: drop default switch case which might paper over missing case net: dsa: mv88e6xxx: Work around mv886e6161 SERDES missing MII_PHYSID2 MIPS: SiByte: Enable ZONE_DMA32 for LittleSur dlm: fix missing idr_destroy for recover_idr ARM: dts: rockchip: Fix rk3288-rock2 vcc_flash name clk: rockchip: fix rk3188 sclk_mac_lbtest parameter ordering clk: rockchip: fix rk3188 sclk_smc gate data i40e: don't restart nway if autoneg not supported rtc: s3c-rtc: Avoid using broken ALMYEAR register net: ethernet: ti: cpts: correct debug for expired txq skb extcon: max8997: Fix lack of path setting in USB device mode dlm: fix possible call to kfree() for non-initialized pointer clk: sunxi-ng: a64: Fix gate bit of DSI DPHY net/mlx5: Release resource on error flow ARM: 8813/1: Make aligned 2-byte getuser()/putuser() atomic on ARMv6+ iwlwifi: mvm: Send non offchannel traffic via AP sta iwlwifi: mvm: synchronize TID queue removal cxgb4vf: fix memleak in mac_hlist initialization serial: core: Allow processing sysrq at port unlock time i2c: core: fix use after free in of_i2c_notify net: ep93xx_eth: fix mismatch of request_mem_region in remove rsxx: add missed destroy_workqueue calls in remove ALSA: pcm: Fix stream lock usage in snd_pcm_period_elapsed() sched/core: Avoid spurious lock dependencies Input: cyttsp4_core - fix use after free bug xfrm: release device reference for invalid state NFC: nxp-nci: Fix NULL pointer dereference after I2C communication error audit_get_nd(): don't unlock parent too early exportfs_decode_fh(): negative pinned may become positive without the parent locked iwlwifi: pcie: don't consider IV len in A-MSDU RDMA/hns: Correct the value of HNS_ROCE_HEM_CHUNK_LEN autofs: fix a leak in autofs_expire_indirect() serial: ifx6x60: add missed pm_runtime_disable serial: serial_core: Perform NULL checks for break_ctl ops serial: pl011: Fix DMA ->flush_buffer() tty: serial: msm_serial: Fix flow control tty: serial: fsl_lpuart: use the sg count from dma_map_sg usb: gadget: u_serial: add missing port entry locking arm64: tegra: Fix 'active-low' warning for Jetson TX1 regulator rsi: release skb if rsi_prepare_beacon fails ANDROID: staging: android: ion: Fix build when CONFIG_ION_SYSTEM_HEAP=n ANDROID: staging: android: ion: Expose total heap and pool sizes via sysfs UPSTREAM: include/linux/slab.h: fix sparse warning in kmalloc_type() UPSTREAM: mm, slab: shorten kmalloc cache names for large sizes UPSTREAM: mm, proc: add KReclaimable to /proc/meminfo BACKPORT: mm: rename and change semantics of nr_indirectly_reclaimable_bytes UPSTREAM: dcache: allocate external names from reclaimable kmalloc caches BACKPORT: mm, slab/slub: introduce kmalloc-reclaimable caches UPSTREAM: mm, slab: combine kmalloc_caches and kmalloc_dma_caches ANDROID: kbuild: disable SCS by default in allmodconfig ANDROID: arm64: cuttlefish_defconfig: enable LTO, CFI, and SCS BACKPORT: FROMLIST: arm64: implement Shadow Call Stack FROMLIST: arm64: disable SCS for hypervisor code BACKPORT: FROMLIST: arm64: vdso: disable Shadow Call Stack FROMLIST: arm64: preserve x18 when CPU is suspended FROMLIST: arm64: reserve x18 from general allocation with SCS FROMLIST: arm64: disable function graph tracing with SCS FROMLIST: scs: add support for stack usage debugging FROMLIST: scs: add accounting FROMLIST: add support for Clang's Shadow Call Stack (SCS) FROMLIST: arm64: kernel: avoid x18 in __cpu_soft_restart FROMLIST: arm64: kvm: stop treating register x18 as caller save FROMLIST: arm64/lib: copy_page: avoid x18 register in assembler code FROMLIST: arm64: mm: avoid x18 in idmap_kpti_install_ng_mappings ANDROID: use non-canonical CFI jump tables ANDROID: arm64: add __nocfi to __apply_alternatives ANDROID: arm64: add __pa_function ANDROID: arm64: allow ThinLTO to be selected ANDROID: soc/tegra: disable ARCH_TEGRA_210_SOC with LTO FROMLIST: arm64: fix alternatives with LLVM's integrated assembler ANDROID: irqchip/gic-v3: rename gic_of_init to work around a ThinLTO+CFI bug ANDROID: kbuild: limit LTO inlining ANDROID: kbuild: merge module sections with LTO ANDROID: init: ensure initcall ordering with LTO Revert "ANDROID: HACK: init: ensure initcall ordering with LTO" ANDROID: add support for ThinLTO ANDROID: Switch to LLD ANDROID: clang: update to 10.0.1 ANDROID: arm64: add atomic_ll_sc.o to obj-y if using lld ANDROID: enable ARM64_ERRATUM_843419 by default with LTO_CLANG ANDROID: kbuild: allow lld to be used with CONFIG_LTO_CLANG ANDROID: Makefile: set -Qunused-arguments sooner BACKPORT: FROMLIST: Makefile: lld: tell clang to use lld BACKPORT: FROMLIST: Makefile: lld: set -O2 linker flag when linking with LLD ANDROID: scripts/Kbuild: add ld-name support for ld.lld UPSTREAM: bpf: permit multiple bpf attachments for a single perf event UPSTREAM: bpf: use the same condition in perf event set/free bpf handler UPSTREAM: bpf: multi program support for cgroup+bpf BACKPORT: serdev: make synchronous write return bytes written UPSTREAM: gnss: serial: fix synchronous write timeout UPSTREAM: gnss: fix potential error pointer dereference BACKPORT: gnss: add receiver type support UPSTREAM: dt-bindings: add generic gnss binding UPSTREAM: gnss: add generic serial driver ANDROID: cuttlefish_defconfig: Enable CONFIG_SERIAL_DEV_BUS ANDROID: cuttlefish_defconfig: Enable CONFIG_GNSS BACKPORT: gnss: add GNSS receiver subsystem UPSTREAM: arm64: Validate tagged addresses in access_ok() called from kernel threads BACKPORT: ARM: 8905/1: Emit __gnu_mcount_nc when using Clang 10.0.0 or newer fs/lock: skip lock owner pid translation in case we are in init_pid_ns f2fs: stop GC when the victim becomes fully valid f2fs: expose main_blkaddr in sysfs f2fs: choose hardlimit when softlimit is larger than hardlimit in f2fs_statfs_project() f2fs: Fix deadlock in f2fs_gc() context during atomic files handling f2fs: show f2fs instance in printk_ratelimited f2fs: fix potential overflow f2fs: fix to update dir's i_pino during cross_rename f2fs: support aligned pinned file f2fs: avoid kernel panic on corruption test f2fs: fix wrong description in document f2fs: cache global IPU bio f2fs: fix to avoid memory leakage in f2fs_listxattr f2fs: check total_segments from devices in raw_super f2fs: update multi-dev metadata in resize_fs f2fs: mark recovery flag correctly in read_raw_super_block() f2fs: fix to update time in lazytime mode vfs: don't allow writes to swap files mm: set S_SWAPFILE on blockdev swap devices Conflicts: drivers/Makefile drivers/staging/android/ion/ion.c drivers/staging/android/ion/ion.h drivers/staging/android/ion/ion_page_pool.c drivers/usb/dwc3/core.c drivers/usb/dwc3/debugfs.c drivers/usb/dwc3/ep0.c fs/f2fs/data.c include/linux/mmzone.h mm/vmstat.c Discarded below patches, as usb patches not applicable and block patch causing stability issues: usb: dwc3: ep0: Clear started flag on completion usb: dwc3: don't log probe deferrals; but do log other error codes block: fix single range discard merge Fixed build errors in below files: drivers/gpu/msm/kgsl_pool.c drivers/staging/android/ion/ion_page_pool.c kernel/taskstats.c Fixed bootup issue in: arch/arm64/mm/proc.s Change-Id: I0a16824c251c14c63af78f9cfd9ede5e82c427fc Signed-off-by: Srinivasarao P <spathi@codeaurora.org> Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
5 years ago
mod_node_page_state(page_pgdat(p), NR_KERNEL_MISC_RECLAIMABLE,
(1 << pool->pool_order));
}
/* Returns a page from specified pool */
static struct page *
_kgsl_pool_get_page(struct kgsl_page_pool *pool)
{
struct page *p = NULL;
spin_lock(&pool->list_lock);
if (pool->page_count) {
p = list_first_entry(&pool->page_list, struct page, lru);
pool->page_count--;
list_del(&p->lru);
}
spin_unlock(&pool->list_lock);
if (p != NULL)
mod_node_page_state(page_pgdat(p),
Merge android-4.14.159 (f960b38) into msm-4.14 * refs/heads/tmp-f960b38: Linux 4.14.159 of: unittest: fix memory leak in attach_node_and_children raid5: need to set STRIPE_HANDLE for batch head gpiolib: acpi: Add Terra Pad 1061 to the run_edge_events_on_boot_blacklist kernel/module.c: wakeup processes in module_wq on module unload gfs2: fix glock reference problem in gfs2_trans_remove_revoke net/mlx5e: Fix SFF 8472 eeprom length sunrpc: fix crash when cache_head become valid before update workqueue: Fix missing kfree(rescuer) in destroy_workqueue() blk-mq: make sure that line break can be printed mfd: rk808: Fix RK818 ID template ext4: fix a bug in ext4_wait_for_tail_page_commit mm/shmem.c: cast the type of unmap_start to u64 firmware: qcom: scm: Ensure 'a0' status code is treated as signed ext4: work around deleting a file with i_nlink == 0 safely powerpc: Fix vDSO clock_getres() powerpc: Avoid clang warnings around setjmp and longjmp ath10k: fix fw crash by moving chip reset after napi disabled media: vimc: fix component match compare mlxsw: spectrum_router: Refresh nexthop neighbour when it becomes dead power: supply: cpcap-battery: Fix signed counter sample register x86/MCE/AMD: Carve out the MC4_MISC thresholding quirk x86/MCE/AMD: Turn off MC4_MISC thresholding on all family 0x15 models e100: Fix passing zero to 'PTR_ERR' warning in e100_load_ucode_wait drbd: Change drbd_request_detach_interruptible's return type to int scsi: lpfc: Correct code setting non existent bits in sli4 ABORT WQE scsi: lpfc: Cap NPIV vports to 256 omap: pdata-quirks: remove openpandora quirks for mmc3 and wl1251 phy: renesas: rcar-gen3-usb2: Fix sysfs interface of "role" iio: adis16480: Add debugfs_reg_access entry xhci: make sure interrupts are restored to correct state xhci: Fix memory leak in xhci_add_in_port() scsi: qla2xxx: Fix message indicating vectors used by driver scsi: qla2xxx: Always check the qla2x00_wait_for_hba_online() return value scsi: qla2xxx: Fix qla24xx_process_bidir_cmd() scsi: qla2xxx: Fix session lookup in qlt_abort_work() scsi: qla2xxx: Fix DMA unmap leak scsi: zfcp: trace channel log even for FCP command responses block: fix single range discard merge reiserfs: fix extended attributes on the root directory ext4: Fix credit estimate for final inode freeing quota: fix livelock in dquot_writeback_dquots ext2: check err when partial != NULL quota: Check that quota is not dirty before release video/hdmi: Fix AVI bar unpack powerpc/xive: Skip ioremap() of ESB pages for LSI interrupts powerpc: Allow flush_icache_range to work across ranges >4GB powerpc/xive: Prevent page fault issues in the machine crash handler powerpc: Allow 64bit VDSO __kernel_sync_dicache to work across ranges >4GB ppdev: fix PPGETTIME/PPSETTIME ioctls ARM: dts: omap3-tao3530: Fix incorrect MMC card detection GPIO polarity mmc: host: omap_hsmmc: add code for special init of wl1251 to get rid of pandora_wl1251_init_card pinctrl: samsung: Fix device node refcount leaks in S3C64xx wakeup controller init pinctrl: samsung: Fix device node refcount leaks in init code pinctrl: samsung: Fix device node refcount leaks in S3C24xx wakeup controller init pinctrl: samsung: Add of_node_put() before return in error path ACPI: PM: Avoid attaching ACPI PM domain to certain devices ACPI: bus: Fix NULL pointer check in acpi_bus_get_private_data() ACPI: OSL: only free map once in osl.c cpufreq: powernv: fix stack bloat and hard limit on number of CPUs PM / devfreq: Lock devfreq in trans_stat_show intel_th: pci: Add Tiger Lake CPU support intel_th: pci: Add Ice Lake CPU support intel_th: Fix a double put_device() in error path cpuidle: Do not unset the driver if it is there already media: cec.h: CEC_OP_REC_FLAG_ values were swapped media: radio: wl1273: fix interrupt masking on release media: bdisp: fix memleak on release s390/mm: properly clear _PAGE_NOEXEC bit when it is not supported ar5523: check NULL before memcpy() in ar5523_cmd() cgroup: pids: use atomic64_t for pids->limit blk-mq: avoid sysfs buffer overflow with too many CPU cores ASoC: Jack: Fix NULL pointer dereference in snd_soc_jack_report workqueue: Fix pwq ref leak in rescuer_thread() workqueue: Fix spurious sanity check failures in destroy_workqueue() dm zoned: reduce overhead of backing device checks hwrng: omap - Fix RNG wait loop timeout watchdog: aspeed: Fix clock behaviour for ast2600 md/raid0: Fix an error message in raid0_make_request() ALSA: hda - Fix pending unsol events at shutdown ovl: relax WARN_ON() on rename to self lib: raid6: fix awk build warnings rtlwifi: rtl8192de: Fix missing enable interrupt flag rtlwifi: rtl8192de: Fix missing callback that tests for hw release of buffer rtlwifi: rtl8192de: Fix missing code to retrieve RX buffer address btrfs: record all roots for rename exchange on a subvol Btrfs: send, skip backreference walking for extents with many references btrfs: Remove btrfs_bio::flags member Btrfs: fix negative subv_writers counter and data space leak after buffered write btrfs: use refcount_inc_not_zero in kill_all_nodes btrfs: check page->mapping when loading free space cache usb: dwc3: ep0: Clear started flag on completion virtio-balloon: fix managed page counts when migrating pages between zones mtd: spear_smi: Fix Write Burst mode tpm: add check after commands attribs tab allocation usb: mon: Fix a deadlock in usbmon between mmap and read usb: core: urb: fix URB structure initialization function USB: adutux: fix interface sanity check USB: serial: io_edgeport: fix epic endpoint lookup USB: idmouse: fix interface sanity checks USB: atm: ueagle-atm: add missing endpoint check iio: humidity: hdc100x: fix IIO_HUMIDITYRELATIVE channel reporting ARM: dts: pandora-common: define wl1251 as child node of mmc3 xhci: handle some XHCI_TRUST_TX_LENGTH quirks cases as default behaviour. xhci: Increase STS_HALT timeout in xhci_suspend() usb: xhci: only set D3hot for pci device staging: gigaset: add endpoint-type sanity check staging: gigaset: fix illegal free on probe errors staging: gigaset: fix general protection fault on probe staging: rtl8712: fix interface sanity check staging: rtl8188eu: fix interface sanity check usb: Allow USB device to be warm reset in suspended state USB: documentation: flags on usb-storage versus UAS USB: uas: heed CAPACITY_HEURISTICS USB: uas: honor flag to avoid CAPACITY16 media: venus: remove invalid compat_ioctl32 handler scsi: qla2xxx: Fix driver unload hang usb: gadget: pch_udc: fix use after free usb: gadget: configfs: Fix missing spin_lock_init() appletalk: Set error code if register_snap_client failed appletalk: Fix potential NULL pointer dereference in unregister_snap_client KVM: x86: fix out-of-bounds write in KVM_GET_EMULATED_CPUID (CVE-2019-19332) ASoC: rsnd: fixup MIX kctrl registration binder: Handle start==NULL in binder_update_page_range() thermal: Fix deadlock in thermal thermal_zone_device_check iomap: Fix pipe page leakage during splicing RDMA/qib: Validate ->show()/store() callbacks before calling them spi: atmel: Fix CS high support crypto: user - fix memory leak in crypto_report crypto: ecdh - fix big endian bug in ECC library crypto: ccp - fix uninitialized list head crypto: af_alg - cast ki_complete ternary op to int crypto: crypto4xx - fix double-free in crypto4xx_destroy_sdr KVM: x86: fix presentation of TSX feature in ARCH_CAPABILITIES KVM: x86: do not modify masked bits of shared MSRs KVM: arm/arm64: vgic: Don't rely on the wrong pending table drm/i810: Prevent underflow in ioctl jbd2: Fix possible overflow in jbd2_log_space_left() kernfs: fix ino wrap-around detection can: slcan: Fix use-after-free Read in slcan_open tty: vt: keyboard: reject invalid keycodes CIFS: Fix SMB2 oplock break processing CIFS: Fix NULL-pointer dereference in smb2_push_mandatory_locks x86/PCI: Avoid AMD FCH XHCI USB PME# from D0 defect Input: Fix memory leak in psxpad_spi_probe coresight: etm4x: Fix input validation for sysfs. Input: goodix - add upside-down quirk for Teclast X89 tablet Input: synaptics-rmi4 - don't increment rmiaddr for SMBus transfers Input: synaptics-rmi4 - re-enable IRQs in f34v7_do_reflash Input: synaptics - switch another X1 Carbon 6 to RMI/SMbus ALSA: hda - Add mute led support for HP ProBook 645 G4 ALSA: pcm: oss: Avoid potential buffer overflows ALSA: hda/realtek - Dell headphone has noise on unmute for ALC236 fuse: verify attributes fuse: verify nlink sched/fair: Scale bandwidth quota and period without losing quota/period ratio precision tcp: exit if nothing to retransmit on RTO timeout net: aquantia: fix RSS table and key sizes media: vimc: fix start stream when link is disabled ARM: dts: sunxi: Fix PMU compatible strings usb: mtu3: fix dbginfo in qmu_tx_zlp_error_handler mlx4: Use snprintf instead of complicated strcpy IB/hfi1: Close VNIC sdma_progress sleep window IB/hfi1: Ignore LNI errors before DC8051 transitions to Polling state mlxsw: spectrum_router: Relax GRE decap matching check firmware: qcom: scm: fix compilation error when disabled media: stkwebcam: Bugfix for wrong return values tty: Don't block on IO when ldisc change is pending nfsd: Return EPERM, not EACCES, in some SETATTR cases MIPS: OCTEON: cvmx_pko_mem_debug8: use oldest forward compatible definition clk: renesas: r8a77995: Correct parent clock of DU powerpc/math-emu: Update macros from GCC pstore/ram: Avoid NULL deref in ftrace merging failure path net/mlx4_core: Fix return codes of unsupported operations dlm: fix invalid cluster name warning ARM: dts: realview: Fix some more duplicate regulator nodes clk: sunxi-ng: h3/h5: Fix CSI_MCLK parent ARM: dts: pxa: clean up USB controller nodes mtd: fix mtd_oobavail() incoherent returned value kbuild: fix single target build for external module modpost: skip ELF local symbols during section mismatch check tcp: fix SNMP TCP timeout under-estimation tcp: fix SNMP under-estimation on failed retransmission tcp: fix off-by-one bug on aborting window-probing socket ARM: dts: realview-pbx: Fix duplicate regulator nodes ARM: dts: mmp2: fix the gpio interrupt cell number net/x25: fix null_x25_address handling net/x25: fix called/calling length calculation in x25_parse_address_block arm64: dts: meson-gxl-khadas-vim: fix GPIO lines names arm64: dts: meson-gxbb-odroidc2: fix GPIO lines names arm64: dts: meson-gxbb-nanopi-k2: fix GPIO lines names arm64: dts: meson-gxl-libretech-cc: fix GPIO lines names ARM: OMAP1/2: fix SoC name printing ASoC: au8540: use 64-bit arithmetic instead of 32-bit nfsd: fix a warning in __cld_pipe_upcall() ARM: debug: enable UART1 for socfpga Cyclone5 dlm: NULL check before kmem_cache_destroy is not needed ARM: dts: sun8i: v3s: Change pinctrl nodes to avoid warning ARM: dts: sun5i: a10s: Fix HDMI output DTC warning ASoC: rsnd: tidyup registering method for rsnd_kctrl_new() lockd: fix decoding of TEST results i2c: imx: don't print error message on probe defer serial: imx: fix error handling in console_setup altera-stapl: check for a null key before strcasecmp'ing it dma-mapping: fix return type of dma_set_max_seg_size() sparc: Correct ctx->saw_frame_pointer logic. f2fs: fix to allow node segment for GC by ioctl path ARM: dts: rockchip: Assign the proper GPIO clocks for rv1108 ARM: dts: rockchip: Fix the PMU interrupt number for rv1108 f2fs: change segment to section in f2fs_ioc_gc_range f2fs: fix count of seg_freed to make sec_freed correct ACPI: fix acpi_find_child_device() invocation in acpi_preset_companion() usb: dwc3: don't log probe deferrals; but do log other error codes usb: dwc3: debugfs: Properly print/set link state for HS dmaengine: dw-dmac: implement dma protection control setting dmaengine: coh901318: Remove unused variable dmaengine: coh901318: Fix a double-lock bug media: cec: report Vendor ID after initialization media: pulse8-cec: return 0 when invalidating the logical address ARM: dts: exynos: Use Samsung SoC specific compatible for DWC2 module rtc: dt-binding: abx80x: fix resistance scale rtc: max8997: Fix the returned value in case of error in 'max8997_rtc_read_alarm()' math-emu/soft-fp.h: (_FP_ROUND_ZERO) cast 0 to void to fix warning net/smc: use after free fix in smc_wr_tx_put_slot() MIPS: OCTEON: octeon-platform: fix typing iomap: sub-block dio needs to zeroout beyond EOF net-next/hinic:fix a bug in set mac address regulator: Fix return value of _set_load() stub clk: rockchip: fix ID of 8ch clock of I2S1 for rk3328 clk: rockchip: fix I2S1 clock gate register for rk3328 mm/vmstat.c: fix NUMA statistics updates Staging: iio: adt7316: Fix i2c data reading, set the data field pinctrl: qcom: ssbi-gpio: fix gpio-hog related boot issues crypto: bcm - fix normal/non key hash algorithm failure crypto: ecc - check for invalid values in the key verification test scsi: zfcp: drop default switch case which might paper over missing case net: dsa: mv88e6xxx: Work around mv886e6161 SERDES missing MII_PHYSID2 MIPS: SiByte: Enable ZONE_DMA32 for LittleSur dlm: fix missing idr_destroy for recover_idr ARM: dts: rockchip: Fix rk3288-rock2 vcc_flash name clk: rockchip: fix rk3188 sclk_mac_lbtest parameter ordering clk: rockchip: fix rk3188 sclk_smc gate data i40e: don't restart nway if autoneg not supported rtc: s3c-rtc: Avoid using broken ALMYEAR register net: ethernet: ti: cpts: correct debug for expired txq skb extcon: max8997: Fix lack of path setting in USB device mode dlm: fix possible call to kfree() for non-initialized pointer clk: sunxi-ng: a64: Fix gate bit of DSI DPHY net/mlx5: Release resource on error flow ARM: 8813/1: Make aligned 2-byte getuser()/putuser() atomic on ARMv6+ iwlwifi: mvm: Send non offchannel traffic via AP sta iwlwifi: mvm: synchronize TID queue removal cxgb4vf: fix memleak in mac_hlist initialization serial: core: Allow processing sysrq at port unlock time i2c: core: fix use after free in of_i2c_notify net: ep93xx_eth: fix mismatch of request_mem_region in remove rsxx: add missed destroy_workqueue calls in remove ALSA: pcm: Fix stream lock usage in snd_pcm_period_elapsed() sched/core: Avoid spurious lock dependencies Input: cyttsp4_core - fix use after free bug xfrm: release device reference for invalid state NFC: nxp-nci: Fix NULL pointer dereference after I2C communication error audit_get_nd(): don't unlock parent too early exportfs_decode_fh(): negative pinned may become positive without the parent locked iwlwifi: pcie: don't consider IV len in A-MSDU RDMA/hns: Correct the value of HNS_ROCE_HEM_CHUNK_LEN autofs: fix a leak in autofs_expire_indirect() serial: ifx6x60: add missed pm_runtime_disable serial: serial_core: Perform NULL checks for break_ctl ops serial: pl011: Fix DMA ->flush_buffer() tty: serial: msm_serial: Fix flow control tty: serial: fsl_lpuart: use the sg count from dma_map_sg usb: gadget: u_serial: add missing port entry locking arm64: tegra: Fix 'active-low' warning for Jetson TX1 regulator rsi: release skb if rsi_prepare_beacon fails ANDROID: staging: android: ion: Fix build when CONFIG_ION_SYSTEM_HEAP=n ANDROID: staging: android: ion: Expose total heap and pool sizes via sysfs UPSTREAM: include/linux/slab.h: fix sparse warning in kmalloc_type() UPSTREAM: mm, slab: shorten kmalloc cache names for large sizes UPSTREAM: mm, proc: add KReclaimable to /proc/meminfo BACKPORT: mm: rename and change semantics of nr_indirectly_reclaimable_bytes UPSTREAM: dcache: allocate external names from reclaimable kmalloc caches BACKPORT: mm, slab/slub: introduce kmalloc-reclaimable caches UPSTREAM: mm, slab: combine kmalloc_caches and kmalloc_dma_caches ANDROID: kbuild: disable SCS by default in allmodconfig ANDROID: arm64: cuttlefish_defconfig: enable LTO, CFI, and SCS BACKPORT: FROMLIST: arm64: implement Shadow Call Stack FROMLIST: arm64: disable SCS for hypervisor code BACKPORT: FROMLIST: arm64: vdso: disable Shadow Call Stack FROMLIST: arm64: preserve x18 when CPU is suspended FROMLIST: arm64: reserve x18 from general allocation with SCS FROMLIST: arm64: disable function graph tracing with SCS FROMLIST: scs: add support for stack usage debugging FROMLIST: scs: add accounting FROMLIST: add support for Clang's Shadow Call Stack (SCS) FROMLIST: arm64: kernel: avoid x18 in __cpu_soft_restart FROMLIST: arm64: kvm: stop treating register x18 as caller save FROMLIST: arm64/lib: copy_page: avoid x18 register in assembler code FROMLIST: arm64: mm: avoid x18 in idmap_kpti_install_ng_mappings ANDROID: use non-canonical CFI jump tables ANDROID: arm64: add __nocfi to __apply_alternatives ANDROID: arm64: add __pa_function ANDROID: arm64: allow ThinLTO to be selected ANDROID: soc/tegra: disable ARCH_TEGRA_210_SOC with LTO FROMLIST: arm64: fix alternatives with LLVM's integrated assembler ANDROID: irqchip/gic-v3: rename gic_of_init to work around a ThinLTO+CFI bug ANDROID: kbuild: limit LTO inlining ANDROID: kbuild: merge module sections with LTO ANDROID: init: ensure initcall ordering with LTO Revert "ANDROID: HACK: init: ensure initcall ordering with LTO" ANDROID: add support for ThinLTO ANDROID: Switch to LLD ANDROID: clang: update to 10.0.1 ANDROID: arm64: add atomic_ll_sc.o to obj-y if using lld ANDROID: enable ARM64_ERRATUM_843419 by default with LTO_CLANG ANDROID: kbuild: allow lld to be used with CONFIG_LTO_CLANG ANDROID: Makefile: set -Qunused-arguments sooner BACKPORT: FROMLIST: Makefile: lld: tell clang to use lld BACKPORT: FROMLIST: Makefile: lld: set -O2 linker flag when linking with LLD ANDROID: scripts/Kbuild: add ld-name support for ld.lld UPSTREAM: bpf: permit multiple bpf attachments for a single perf event UPSTREAM: bpf: use the same condition in perf event set/free bpf handler UPSTREAM: bpf: multi program support for cgroup+bpf BACKPORT: serdev: make synchronous write return bytes written UPSTREAM: gnss: serial: fix synchronous write timeout UPSTREAM: gnss: fix potential error pointer dereference BACKPORT: gnss: add receiver type support UPSTREAM: dt-bindings: add generic gnss binding UPSTREAM: gnss: add generic serial driver ANDROID: cuttlefish_defconfig: Enable CONFIG_SERIAL_DEV_BUS ANDROID: cuttlefish_defconfig: Enable CONFIG_GNSS BACKPORT: gnss: add GNSS receiver subsystem UPSTREAM: arm64: Validate tagged addresses in access_ok() called from kernel threads BACKPORT: ARM: 8905/1: Emit __gnu_mcount_nc when using Clang 10.0.0 or newer fs/lock: skip lock owner pid translation in case we are in init_pid_ns f2fs: stop GC when the victim becomes fully valid f2fs: expose main_blkaddr in sysfs f2fs: choose hardlimit when softlimit is larger than hardlimit in f2fs_statfs_project() f2fs: Fix deadlock in f2fs_gc() context during atomic files handling f2fs: show f2fs instance in printk_ratelimited f2fs: fix potential overflow f2fs: fix to update dir's i_pino during cross_rename f2fs: support aligned pinned file f2fs: avoid kernel panic on corruption test f2fs: fix wrong description in document f2fs: cache global IPU bio f2fs: fix to avoid memory leakage in f2fs_listxattr f2fs: check total_segments from devices in raw_super f2fs: update multi-dev metadata in resize_fs f2fs: mark recovery flag correctly in read_raw_super_block() f2fs: fix to update time in lazytime mode vfs: don't allow writes to swap files mm: set S_SWAPFILE on blockdev swap devices Conflicts: drivers/Makefile drivers/staging/android/ion/ion.c drivers/staging/android/ion/ion.h drivers/staging/android/ion/ion_page_pool.c drivers/usb/dwc3/core.c drivers/usb/dwc3/debugfs.c drivers/usb/dwc3/ep0.c fs/f2fs/data.c include/linux/mmzone.h mm/vmstat.c Discarded below patches, as usb patches not applicable and block patch causing stability issues: usb: dwc3: ep0: Clear started flag on completion usb: dwc3: don't log probe deferrals; but do log other error codes block: fix single range discard merge Fixed build errors in below files: drivers/gpu/msm/kgsl_pool.c drivers/staging/android/ion/ion_page_pool.c kernel/taskstats.c Fixed bootup issue in: arch/arm64/mm/proc.s Change-Id: I0a16824c251c14c63af78f9cfd9ede5e82c427fc Signed-off-by: Srinivasarao P <spathi@codeaurora.org> Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
5 years ago
NR_KERNEL_MISC_RECLAIMABLE,
-(1 << pool->pool_order));
return p;
}
/* Returns the number of pages in specified pool */
static int
kgsl_pool_size(struct kgsl_page_pool *kgsl_pool)
{
int size;
spin_lock(&kgsl_pool->list_lock);
size = kgsl_pool->page_count * (1 << kgsl_pool->pool_order);
spin_unlock(&kgsl_pool->list_lock);
return size;
}
/* Returns the number of pages in all kgsl page pools */
static int kgsl_pool_size_total(void)
{
int i;
int total = 0;
for (i = 0; i < kgsl_num_pools; i++)
total += kgsl_pool_size(&kgsl_pools[i]);
return total;
}
/*
* This will shrink the specified pool by num_pages or its pool_size,
* whichever is smaller.
*/
static unsigned int
_kgsl_pool_shrink(struct kgsl_page_pool *pool, int num_pages)
{
int j;
unsigned int pcount = 0;
if (pool == NULL || num_pages <= 0)
return pcount;
for (j = 0; j < num_pages >> pool->pool_order; j++) {
struct page *page = _kgsl_pool_get_page(pool);
if (page != NULL) {
__free_pages(page, pool->pool_order);
pcount += (1 << pool->pool_order);
} else {
/* Break as this pool is empty */
break;
}
}
return pcount;
}
/*
* This function reduces the total pool size
* to number of pages specified by target_pages.
*
* If target_pages are greater than current pool size
* nothing needs to be done otherwise remove
* (current_pool_size - target_pages) pages from pool
* starting from higher order pool.
*/
static unsigned long
kgsl_pool_reduce(unsigned int target_pages, bool exit)
{
int total_pages = 0;
int i;
int nr_removed;
struct kgsl_page_pool *pool;
unsigned long pcount = 0;
total_pages = kgsl_pool_size_total();
for (i = (kgsl_num_pools - 1); i >= 0; i--) {
pool = &kgsl_pools[i];
/*
* Only reduce the pool sizes for pools which are allowed to
* allocate memory unless we are at close, in which case the
* reserved memory for all pools needs to be freed
*/
if (!pool->allocation_allowed && !exit)
continue;
total_pages -= pcount;
nr_removed = total_pages - target_pages;
if (nr_removed <= 0)
return pcount;
/* Round up to integral number of pages in this pool */
nr_removed = ALIGN(nr_removed, 1 << pool->pool_order);
/* Remove nr_removed pages from this pool*/
pcount += _kgsl_pool_shrink(pool, nr_removed);
}
return pcount;
}
/**
* kgsl_pool_free_sgt() - Free scatter-gather list
* @sgt: pointer of the sg list
*
* Free the sg list by collapsing any physical adjacent pages.
* Pages are added back to the pool, if pool has sufficient space
* otherwise they are given back to system.
*/
void kgsl_pool_free_sgt(struct sg_table *sgt)
{
int i;
struct scatterlist *sg;
for_each_sg(sgt->sgl, sg, sgt->nents, i) {
/*
* sg_alloc_table_from_pages() will collapse any physically
* adjacent pages into a single scatterlist entry. We cannot
* just call __free_pages() on the entire set since we cannot
* ensure that the size is a whole order. Instead, free each
* page or compound page group individually.
*/
struct page *p = sg_page(sg), *next;
unsigned int count;
unsigned int j = 0;
while (j < (sg->length/PAGE_SIZE)) {
count = 1 << compound_order(p);
next = nth_page(p, count);
kgsl_pool_free_page(p);
p = next;
j += count;
}
}
}
/**
* kgsl_pool_free_pages() - Free pages in the pages array
* @pages: pointer of the pages array
*
* Free the pages by collapsing any physical adjacent pages.
* Pages are added back to the pool, if pool has sufficient space
* otherwise they are given back to system.
*/
void kgsl_pool_free_pages(struct page **pages, unsigned int pcount)
{
int i;
if (pages == NULL || pcount == 0)
return;
if (WARN(!kern_addr_valid((unsigned long)pages),
"Address of pages=%pK is not valid\n", pages))
return;
for (i = 0; i < pcount;) {
/*
* Free each page or compound page group individually.
*/
struct page *p = pages[i];
if (WARN(!kern_addr_valid((unsigned long)p),
"Address of page=%pK is not valid\n", p))
return;
i += 1 << compound_order(p);
kgsl_pool_free_page(p);
}
}
static int kgsl_pool_idx_lookup(unsigned int order)
{
int i;
for (i = 0; i < kgsl_num_pools; i++)
if (order == kgsl_pools[i].pool_order)
return i;
return -ENOMEM;
}
static int kgsl_pool_get_retry_order(unsigned int order)
{
int i;
for (i = kgsl_num_pools-1; i > 0; i--)
if (order >= kgsl_pools[i].pool_order)
return kgsl_pools[i].pool_order;
return 0;
}
/**
* kgsl_pool_alloc_page() - Allocate a page of requested size
* @page_size: Size of the page to be allocated
* @pages: pointer to hold list of pages, should be big enough to hold
* requested page
* @len: Length of array pages.
*
* Return total page count on success and negative value on failure
*/
int kgsl_pool_alloc_page(int *page_size, struct page **pages,
unsigned int pages_len, unsigned int *align)
{
int j;
int pcount = 0;
struct kgsl_page_pool *pool;
struct page *page = NULL;
struct page *p = NULL;
int order = get_order(*page_size);
int pool_idx;
size_t size = 0;
if ((pages == NULL) || pages_len < (*page_size >> PAGE_SHIFT))
return -EINVAL;
/* If the pool is not configured get pages from the system */
if (!kgsl_num_pools) {
gfp_t gfp_mask = kgsl_gfp_mask(order);
page = alloc_pages(gfp_mask, order);
if (page == NULL) {
/* Retry with lower order pages */
if (order > 0) {
size = PAGE_SIZE << --order;
goto eagain;
} else
return -ENOMEM;
}
_kgsl_pool_zero_page(page, order);
goto done;
}
pool = _kgsl_get_pool_from_order(order);
if (pool == NULL) {
/* Retry with lower order pages */
if (order > 0) {
size = PAGE_SIZE << kgsl_pool_get_retry_order(order);
goto eagain;
} else {
/*
* Fall back to direct allocation in case
* pool with zero order is not present
*/
gfp_t gfp_mask = kgsl_gfp_mask(order);
page = alloc_pages(gfp_mask, order);
if (page == NULL)
return -ENOMEM;
_kgsl_pool_zero_page(page, order);
goto done;
}
}
pool_idx = kgsl_pool_idx_lookup(order);
page = _kgsl_pool_get_page(pool);
/* Allocate a new page if not allocated from pool */
if (page == NULL) {
gfp_t gfp_mask = kgsl_gfp_mask(order);
/* Only allocate non-reserved memory for certain pools */
if (!pool->allocation_allowed && pool_idx > 0) {
size = PAGE_SIZE <<
kgsl_pools[pool_idx-1].pool_order;
goto eagain;
}
page = alloc_pages(gfp_mask, order);
if (!page) {
if (pool_idx > 0) {
/* Retry with lower order pages */
size = PAGE_SIZE <<
kgsl_pools[pool_idx-1].pool_order;
goto eagain;
} else
return -ENOMEM;
}
_kgsl_pool_zero_page(page, order);
}
done:
for (j = 0; j < (*page_size >> PAGE_SHIFT); j++) {
p = nth_page(page, j);
pages[pcount] = p;
pcount++;
}
mod_node_page_state(page_pgdat(page), NR_UNRECLAIMABLE_PAGES,
(1 << order));
return pcount;
eagain:
*page_size = kgsl_get_page_size(size,
ilog2(size));
*align = ilog2(*page_size);
return -EAGAIN;
}
void kgsl_pool_free_page(struct page *page)
{
struct kgsl_page_pool *pool;
int page_order;
if (page == NULL)
return;
page_order = compound_order(page);
mod_node_page_state(page_pgdat(page), NR_UNRECLAIMABLE_PAGES,
-(1 << page_order));
if (!kgsl_pool_max_pages ||
(kgsl_pool_size_total() < kgsl_pool_max_pages)) {
pool = _kgsl_get_pool_from_order(page_order);
if (pool != NULL) {
_kgsl_pool_add_page(pool, page);
return;
}
}
/* Give back to system as not added to pool */
__free_pages(page, page_order);
}
/*
* Return true if the pool of specified page size is supported
* or no pools are supported otherwise return false.
*/
bool kgsl_pool_avaialable(int page_size)
{
int i;
if (!kgsl_num_pools)
return true;
for (i = 0; i < kgsl_num_pools; i++)
if (ilog2(page_size >> PAGE_SHIFT) == kgsl_pools[i].pool_order)
return true;
return false;
}
static void kgsl_pool_reserve_pages(void)
{
int i, j;
for (i = 0; i < kgsl_num_pools; i++) {
struct page *page;
for (j = 0; j < kgsl_pools[i].reserved_pages; j++) {
int order = kgsl_pools[i].pool_order;
gfp_t gfp_mask = kgsl_gfp_mask(order);
page = alloc_pages(gfp_mask, order);
if (page != NULL)
_kgsl_pool_add_page(&kgsl_pools[i], page);
}
}
}
/* Functions for the shrinker */
static unsigned long
kgsl_pool_shrink_scan_objects(struct shrinker *shrinker,
struct shrink_control *sc)
{
/* nr represents number of pages to be removed*/
int nr = sc->nr_to_scan;
int total_pages = kgsl_pool_size_total();
/* Target pages represents new pool size */
int target_pages = (nr > total_pages) ? 0 : (total_pages - nr);
/* Reduce pool size to target_pages */
return kgsl_pool_reduce(target_pages, false);
}
static unsigned long
kgsl_pool_shrink_count_objects(struct shrinker *shrinker,
struct shrink_control *sc)
{
/* Return total pool size as everything in pool can be freed */
return kgsl_pool_size_total();
}
/* Shrinker callback data*/
static struct shrinker kgsl_pool_shrinker = {
.count_objects = kgsl_pool_shrink_count_objects,
.scan_objects = kgsl_pool_shrink_scan_objects,
.seeks = DEFAULT_SEEKS,
.batch = 0,
};
static void kgsl_pool_config(unsigned int order, unsigned int reserved_pages,
bool allocation_allowed)
{
#ifdef CONFIG_ALLOC_BUFFERS_IN_4K_CHUNKS
if (order > 0) {
pr_info("%s: Pool order:%d not supprted.!!\n", __func__, order);
return;
}
#endif
if ((order > KGSL_MAX_POOL_ORDER) ||
(reserved_pages > KGSL_MAX_RESERVED_PAGES))
return;
kgsl_pools[kgsl_num_pools].pool_order = order;
kgsl_pools[kgsl_num_pools].reserved_pages = reserved_pages;
kgsl_pools[kgsl_num_pools].allocation_allowed = allocation_allowed;
spin_lock_init(&kgsl_pools[kgsl_num_pools].list_lock);
INIT_LIST_HEAD(&kgsl_pools[kgsl_num_pools].page_list);
kgsl_num_pools++;
}
static void kgsl_of_parse_mempools(struct device_node *node)
{
struct device_node *child;
unsigned int page_size, reserved_pages = 0;
bool allocation_allowed;
for_each_child_of_node(node, child) {
unsigned int index;
if (of_property_read_u32(child, "reg", &index))
return;
if (index >= KGSL_MAX_POOLS)
continue;
if (of_property_read_u32(child, "qcom,mempool-page-size",
&page_size))
return;
of_property_read_u32(child, "qcom,mempool-reserved",
&reserved_pages);
allocation_allowed = of_property_read_bool(child,
"qcom,mempool-allocate");
kgsl_pool_config(ilog2(page_size >> PAGE_SHIFT), reserved_pages,
allocation_allowed);
}
}
static void kgsl_of_get_mempools(struct device_node *parent)
{
struct device_node *node;
node = of_find_compatible_node(parent, NULL, "qcom,gpu-mempools");
if (node != NULL) {
/* Get Max pages limit for mempool */
of_property_read_u32(node, "qcom,mempool-max-pages",
&kgsl_pool_max_pages);
kgsl_of_parse_mempools(node);
}
}
void kgsl_init_page_pools(struct platform_device *pdev)
{
/* Get GPU mempools data and configure pools */
kgsl_of_get_mempools(pdev->dev.of_node);
/* Reserve the appropriate number of pages for each pool */
kgsl_pool_reserve_pages();
/* Initialize shrinker */
register_shrinker(&kgsl_pool_shrinker);
}
void kgsl_exit_page_pools(void)
{
/* Release all pages in pools, if any.*/
kgsl_pool_reduce(0, true);
/* Unregister shrinker */
unregister_shrinker(&kgsl_pool_shrinker);
}