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Qualcomm ARM Based Driver Updates for v4.20

Browse Source 
* Refactor of SCM compatibles and clock requirements
 * SMEM cleanup
 * Add LLCC EDAC driver
 * Fixes for GENI clocks and macros
 * Fix includes for llcc-slice and smem
 * String overflow fixes for APR and wcnss_ctrl
 * Fixup for COMPILE_TEST of qcom driver Kconfigs
 * Cleanup of Kconfig depends of rpmh, smd_rpm, smsm, and smp2p
 * Add SCM dependencies to SPM and rmtfs-mem
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Merge tag 'qcom-drivers-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into next/drivers

Qualcomm ARM Based Driver Updates for v4.20

* Refactor of SCM compatibles and clock requirements
* SMEM cleanup
* Add LLCC EDAC driver
* Fixes for GENI clocks and macros
* Fix includes for llcc-slice and smem
* String overflow fixes for APR and wcnss_ctrl
* Fixup for COMPILE_TEST of qcom driver Kconfigs
* Cleanup of Kconfig depends of rpmh, smd_rpm, smsm, and smp2p
* Add SCM dependencies to SPM and rmtfs-mem

* tag 'qcom-drivers-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux: (38 commits)
  soc: qcom: geni: geni_se_clk_freq_match() should always accept multiples
  soc: qcom: geni: Don't ignore clk_round_rate() errors in geni_se_clk_tbl_get()
  soc: qcom: geni: Make version macros simpler
  dt-bindings: firmware: scm: Add MSM8998 and SDM845
  firmware: qcom: scm: Refactor clock handling
  dt-bindings: firmware: scm: Refactor compatibles and clocks
  soc: qcom: smem: a few last cleanups
  soc: qcom: smem: verify partition host ids match
  soc: qcom: smem: small change in global entry loop
  soc: qcom: smem: verify partition offset_free_uncached
  soc: qcom: smem: verify partition header size
  soc: qcom: smem: introduce qcom_smem_partition_header()
  soc: qcom: smem: require order of host ids to match
  soc: qcom: smem: verify both host ids in partition header
  soc: qcom: smem: small refactor in qcom_smem_enumerate_partitions()
  soc: qcom: smem: always ignore partitions with 0 offset or size
  soc: qcom: smem: initialize region struct only when successful
  soc: qcom: smem: rename variable in qcom_smem_get_global()
  drivers: qcom: rpmh-rsc: clear wait_for_compl after use
  soc: qcom: rmtfs-mem: Validate that scm is available
  ...

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2018-10-02 10:11:05 +02:00
commit 64d20b774f
18 changed files with 732 additions and 202 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
Documentation/devicetree/bindings/arm/msm/qcom,llcc.txt
View File

@ -16,11 +16,26 @@ Properties:
- reg:
Usage: required
Value Type: <prop-encoded-array>
Definition: Start address and the the size of the register region.
Definition: The first element specifies the llcc base start address and
the size of the register region. The second element specifies
the llcc broadcast base address and size of the register region.
- reg-names:
Usage: required
Value Type: <stringlist>
Definition: Register region names. Must be "llcc_base", "llcc_broadcast_base".
- interrupts:
Usage: required
Definition: The interrupt is associated with the llcc edac device.
It's used for llcc cache single and double bit error detection
and reporting.
Example:
cache-controller@1100000 {
compatible = "qcom,sdm845-llcc";
reg = <0x1100000 0x250000>;
reg = <0x1100000 0x200000>, <0x1300000 0x50000> ;
reg-names = "llcc_base", "llcc_broadcast_base";
interrupts = <GIC_SPI 582 IRQ_TYPE_LEVEL_HIGH>;
};

33
Documentation/devicetree/bindings/firmware/qcom,scm.txt
View File

@ -7,16 +7,23 @@ assorted actions.
Required properties:
- compatible: must contain one of the following:
* "qcom,scm-apq8064" for APQ8064 platforms
* "qcom,scm-msm8660" for MSM8660 platforms
* "qcom,scm-msm8690" for MSM8690 platforms
* "qcom,scm-msm8996" for MSM8996 platforms
* "qcom,scm-ipq4019" for IPQ4019 platforms
* "qcom,scm" for later processors (MSM8916, APQ8084, MSM8974, etc)
- clocks: One to three clocks may be required based on compatible.
* No clock required for "qcom,scm-msm8996", "qcom,scm-ipq4019"
* Only core clock required for "qcom,scm-apq8064", "qcom,scm-msm8660", and "qcom,scm-msm8960"
* Core, iface, and bus clocks required for "qcom,scm"
* "qcom,scm-apq8064"
* "qcom,scm-apq8084"
* "qcom,scm-msm8660"
* "qcom,scm-msm8916"
* "qcom,scm-msm8960"
* "qcom,scm-msm8974"
* "qcom,scm-msm8996"
* "qcom,scm-msm8998"
* "qcom,scm-ipq4019"
* "qcom,scm-sdm845"
and:
* "qcom,scm"
- clocks: Specifies clocks needed by the SCM interface, if any:
* core clock required for "qcom,scm-apq8064", "qcom,scm-msm8660" and
"qcom,scm-msm8960"
* core, iface and bus clocks required for "qcom,scm-apq8084",
"qcom,scm-msm8916" and "qcom,scm-msm8974"
- clock-names: Must contain "core" for the core clock, "iface" for the interface
clock and "bus" for the bus clock per the requirements of the compatible.
- qcom,dload-mode: phandle to the TCSR hardware block and offset of the
@ -26,8 +33,10 @@ Example for MSM8916:
firmware {
scm {
compatible = "qcom,scm";
clocks = <&gcc GCC_CRYPTO_CLK> , <&gcc GCC_CRYPTO_AXI_CLK>, <&gcc GCC_CRYPTO_AHB_CLK>;
compatible = "qcom,msm8916", "qcom,scm";
clocks = <&gcc GCC_CRYPTO_CLK> ,
<&gcc GCC_CRYPTO_AXI_CLK>,
<&gcc GCC_CRYPTO_AHB_CLK>;
clock-names = "core", "bus", "iface";
};
};

8
MAINTAINERS
View File

@ -5347,6 +5347,14 @@ L: linux-edac@vger.kernel.org
S: Maintained
F: drivers/edac/ti_edac.c
EDAC-QCOM
M: Channagoud Kadabi <ckadabi@codeaurora.org>
M: Venkata Narendra Kumar Gutta <vnkgutta@codeaurora.org>
L: linux-arm-msm@vger.kernel.org
L: linux-edac@vger.kernel.org
S: Maintained
F: drivers/edac/qcom_edac.c
EDIROL UA-101/UA-1000 DRIVER
M: Clemens Ladisch <clemens@ladisch.de>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)

14
drivers/edac/Kconfig
View File

@ -460,4 +460,18 @@ config EDAC_TI
Support for error detection and correction on the
TI SoCs.
config EDAC_QCOM
tristate "QCOM EDAC Controller"
depends on ARCH_QCOM && QCOM_LLCC
help
Support for error detection and correction on the
Qualcomm Technologies, Inc. SoCs.
This driver reports Single Bit Errors (SBEs) and Double Bit Errors (DBEs).
As of now, it supports error reporting for Last Level Cache Controller (LLCC)
of Tag RAM and Data RAM.
For debugging issues having to do with stability and overall system
health, you should probably say 'Y' here.
endif # EDAC

1
drivers/edac/Makefile
View File

@ -77,3 +77,4 @@ obj-$(CONFIG_EDAC_ALTERA) += altera_edac.o
obj-$(CONFIG_EDAC_SYNOPSYS) += synopsys_edac.o
obj-$(CONFIG_EDAC_XGENE) += xgene_edac.o
obj-$(CONFIG_EDAC_TI) += ti_edac.o
obj-$(CONFIG_EDAC_QCOM) += qcom_edac.o

414
drivers/edac/qcom_edac.c Normal file
View File

@ -0,0 +1,414 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2018, The Linux Foundation. All rights reserved.
*/
#include <linux/edac.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/soc/qcom/llcc-qcom.h>
#include "edac_mc.h"
#include "edac_device.h"
#define EDAC_LLCC "qcom_llcc"
#define LLCC_ERP_PANIC_ON_UE 1
#define TRP_SYN_REG_CNT 6
#define DRP_SYN_REG_CNT 8
#define LLCC_COMMON_STATUS0 0x0003000c
#define LLCC_LB_CNT_MASK GENMASK(31, 28)
#define LLCC_LB_CNT_SHIFT 28
/* Single & double bit syndrome register offsets */
#define TRP_ECC_SB_ERR_SYN0 0x0002304c
#define TRP_ECC_DB_ERR_SYN0 0x00020370
#define DRP_ECC_SB_ERR_SYN0 0x0004204c
#define DRP_ECC_DB_ERR_SYN0 0x00042070
/* Error register offsets */
#define TRP_ECC_ERROR_STATUS1 0x00020348
#define TRP_ECC_ERROR_STATUS0 0x00020344
#define DRP_ECC_ERROR_STATUS1 0x00042048
#define DRP_ECC_ERROR_STATUS0 0x00042044
/* TRP, DRP interrupt register offsets */
#define DRP_INTERRUPT_STATUS 0x00041000
#define TRP_INTERRUPT_0_STATUS 0x00020480
#define DRP_INTERRUPT_CLEAR 0x00041008
#define DRP_ECC_ERROR_CNTR_CLEAR 0x00040004
#define TRP_INTERRUPT_0_CLEAR 0x00020484
#define TRP_ECC_ERROR_CNTR_CLEAR 0x00020440
/* Mask and shift macros */
#define ECC_DB_ERR_COUNT_MASK GENMASK(4, 0)
#define ECC_DB_ERR_WAYS_MASK GENMASK(31, 16)
#define ECC_DB_ERR_WAYS_SHIFT BIT(4)
#define ECC_SB_ERR_COUNT_MASK GENMASK(23, 16)
#define ECC_SB_ERR_COUNT_SHIFT BIT(4)
#define ECC_SB_ERR_WAYS_MASK GENMASK(15, 0)
#define SB_ECC_ERROR BIT(0)
#define DB_ECC_ERROR BIT(1)
#define DRP_TRP_INT_CLEAR GENMASK(1, 0)
#define DRP_TRP_CNT_CLEAR GENMASK(1, 0)
/* Config registers offsets*/
#define DRP_ECC_ERROR_CFG 0x00040000
/* Tag RAM, Data RAM interrupt register offsets */
#define CMN_INTERRUPT_0_ENABLE 0x0003001c
#define CMN_INTERRUPT_2_ENABLE 0x0003003c
#define TRP_INTERRUPT_0_ENABLE 0x00020488
#define DRP_INTERRUPT_ENABLE 0x0004100c
#define SB_ERROR_THRESHOLD 0x1
#define SB_ERROR_THRESHOLD_SHIFT 24
#define SB_DB_TRP_INTERRUPT_ENABLE 0x3
#define TRP0_INTERRUPT_ENABLE 0x1
#define DRP0_INTERRUPT_ENABLE BIT(6)
#define SB_DB_DRP_INTERRUPT_ENABLE 0x3
enum {
LLCC_DRAM_CE = 0,
LLCC_DRAM_UE,
LLCC_TRAM_CE,
LLCC_TRAM_UE,
};
static const struct llcc_edac_reg_data edac_reg_data[] = {
[LLCC_DRAM_CE] = {
.name = "DRAM Single-bit",
.synd_reg = DRP_ECC_SB_ERR_SYN0,
.count_status_reg = DRP_ECC_ERROR_STATUS1,
.ways_status_reg = DRP_ECC_ERROR_STATUS0,
.reg_cnt = DRP_SYN_REG_CNT,
.count_mask = ECC_SB_ERR_COUNT_MASK,
.ways_mask = ECC_SB_ERR_WAYS_MASK,
.count_shift = ECC_SB_ERR_COUNT_SHIFT,
},
[LLCC_DRAM_UE] = {
.name = "DRAM Double-bit",
.synd_reg = DRP_ECC_DB_ERR_SYN0,
.count_status_reg = DRP_ECC_ERROR_STATUS1,
.ways_status_reg = DRP_ECC_ERROR_STATUS0,
.reg_cnt = DRP_SYN_REG_CNT,
.count_mask = ECC_DB_ERR_COUNT_MASK,
.ways_mask = ECC_DB_ERR_WAYS_MASK,
.ways_shift = ECC_DB_ERR_WAYS_SHIFT,
},
[LLCC_TRAM_CE] = {
.name = "TRAM Single-bit",
.synd_reg = TRP_ECC_SB_ERR_SYN0,
.count_status_reg = TRP_ECC_ERROR_STATUS1,
.ways_status_reg = TRP_ECC_ERROR_STATUS0,
.reg_cnt = TRP_SYN_REG_CNT,
.count_mask = ECC_SB_ERR_COUNT_MASK,
.ways_mask = ECC_SB_ERR_WAYS_MASK,
.count_shift = ECC_SB_ERR_COUNT_SHIFT,
},
[LLCC_TRAM_UE] = {
.name = "TRAM Double-bit",
.synd_reg = TRP_ECC_DB_ERR_SYN0,
.count_status_reg = TRP_ECC_ERROR_STATUS1,
.ways_status_reg = TRP_ECC_ERROR_STATUS0,
.reg_cnt = TRP_SYN_REG_CNT,
.count_mask = ECC_DB_ERR_COUNT_MASK,
.ways_mask = ECC_DB_ERR_WAYS_MASK,
.ways_shift = ECC_DB_ERR_WAYS_SHIFT,
},
};
static int qcom_llcc_core_setup(struct regmap *llcc_bcast_regmap)
{
u32 sb_err_threshold;
int ret;
/*
* Configure interrupt enable registers such that Tag, Data RAM related
* interrupts are propagated to interrupt controller for servicing
*/
ret = regmap_update_bits(llcc_bcast_regmap, CMN_INTERRUPT_2_ENABLE,
TRP0_INTERRUPT_ENABLE,
TRP0_INTERRUPT_ENABLE);
if (ret)
return ret;
ret = regmap_update_bits(llcc_bcast_regmap, TRP_INTERRUPT_0_ENABLE,
SB_DB_TRP_INTERRUPT_ENABLE,
SB_DB_TRP_INTERRUPT_ENABLE);
if (ret)
return ret;
sb_err_threshold = (SB_ERROR_THRESHOLD << SB_ERROR_THRESHOLD_SHIFT);
ret = regmap_write(llcc_bcast_regmap, DRP_ECC_ERROR_CFG,
sb_err_threshold);
if (ret)
return ret;
ret = regmap_update_bits(llcc_bcast_regmap, CMN_INTERRUPT_2_ENABLE,
DRP0_INTERRUPT_ENABLE,
DRP0_INTERRUPT_ENABLE);
if (ret)
return ret;
ret = regmap_write(llcc_bcast_regmap, DRP_INTERRUPT_ENABLE,
SB_DB_DRP_INTERRUPT_ENABLE);
return ret;
}
/* Clear the error interrupt and counter registers */
static int
qcom_llcc_clear_error_status(int err_type, struct llcc_drv_data *drv)
{
int ret = 0;
switch (err_type) {
case LLCC_DRAM_CE:
case LLCC_DRAM_UE:
ret = regmap_write(drv->bcast_regmap, DRP_INTERRUPT_CLEAR,
DRP_TRP_INT_CLEAR);
if (ret)
return ret;
ret = regmap_write(drv->bcast_regmap, DRP_ECC_ERROR_CNTR_CLEAR,
DRP_TRP_CNT_CLEAR);
if (ret)
return ret;
break;
case LLCC_TRAM_CE:
case LLCC_TRAM_UE:
ret = regmap_write(drv->bcast_regmap, TRP_INTERRUPT_0_CLEAR,
DRP_TRP_INT_CLEAR);
if (ret)
return ret;
ret = regmap_write(drv->bcast_regmap, TRP_ECC_ERROR_CNTR_CLEAR,
DRP_TRP_CNT_CLEAR);
if (ret)
return ret;
break;
default:
ret = -EINVAL;
edac_printk(KERN_CRIT, EDAC_LLCC, "Unexpected error type: %d\n",
err_type);
}
return ret;
}
/* Dump Syndrome registers data for Tag RAM, Data RAM bit errors*/
static int
dump_syn_reg_values(struct llcc_drv_data *drv, u32 bank, int err_type)
{
struct llcc_edac_reg_data reg_data = edac_reg_data[err_type];
int err_cnt, err_ways, ret, i;
u32 synd_reg, synd_val;
for (i = 0; i < reg_data.reg_cnt; i++) {
synd_reg = reg_data.synd_reg + (i * 4);
ret = regmap_read(drv->regmap, drv->offsets[bank] + synd_reg,
&synd_val);
if (ret)
goto clear;
edac_printk(KERN_CRIT, EDAC_LLCC, "%s: ECC_SYN%d: 0x%8x\n",
reg_data.name, i, synd_val);
}
ret = regmap_read(drv->regmap,
drv->offsets[bank] + reg_data.count_status_reg,
&err_cnt);
if (ret)
goto clear;
err_cnt &= reg_data.count_mask;
err_cnt >>= reg_data.count_shift;
edac_printk(KERN_CRIT, EDAC_LLCC, "%s: Error count: 0x%4x\n",
reg_data.name, err_cnt);
ret = regmap_read(drv->regmap,
drv->offsets[bank] + reg_data.ways_status_reg,
&err_ways);
if (ret)
goto clear;
err_ways &= reg_data.ways_mask;
err_ways >>= reg_data.ways_shift;
edac_printk(KERN_CRIT, EDAC_LLCC, "%s: Error ways: 0x%4x\n",
reg_data.name, err_ways);
clear:
return qcom_llcc_clear_error_status(err_type, drv);
}
static int
dump_syn_reg(struct edac_device_ctl_info *edev_ctl, int err_type, u32 bank)
{
struct llcc_drv_data *drv = edev_ctl->pvt_info;
int ret;
ret = dump_syn_reg_values(drv, bank, err_type);
if (ret)
return ret;
switch (err_type) {
case LLCC_DRAM_CE:
edac_device_handle_ce(edev_ctl, 0, bank,
"LLCC Data RAM correctable Error");
break;
case LLCC_DRAM_UE:
edac_device_handle_ue(edev_ctl, 0, bank,
"LLCC Data RAM uncorrectable Error");
break;
case LLCC_TRAM_CE:
edac_device_handle_ce(edev_ctl, 0, bank,
"LLCC Tag RAM correctable Error");
break;
case LLCC_TRAM_UE:
edac_device_handle_ue(edev_ctl, 0, bank,
"LLCC Tag RAM uncorrectable Error");
break;
default:
ret = -EINVAL;
edac_printk(KERN_CRIT, EDAC_LLCC, "Unexpected error type: %d\n",
err_type);
}
return ret;
}
static irqreturn_t
llcc_ecc_irq_handler(int irq, void *edev_ctl)
{
struct edac_device_ctl_info *edac_dev_ctl = edev_ctl;
struct llcc_drv_data *drv = edac_dev_ctl->pvt_info;
irqreturn_t irq_rc = IRQ_NONE;
u32 drp_error, trp_error, i;
bool irq_handled;
int ret;
/* Iterate over the banks and look for Tag RAM or Data RAM errors */
for (i = 0; i < drv->num_banks; i++) {
ret = regmap_read(drv->regmap,
drv->offsets[i] + DRP_INTERRUPT_STATUS,
&drp_error);
if (!ret && (drp_error & SB_ECC_ERROR)) {
edac_printk(KERN_CRIT, EDAC_LLCC,
"Single Bit Error detected in Data RAM\n");
ret = dump_syn_reg(edev_ctl, LLCC_DRAM_CE, i);
} else if (!ret && (drp_error & DB_ECC_ERROR)) {
edac_printk(KERN_CRIT, EDAC_LLCC,
"Double Bit Error detected in Data RAM\n");
ret = dump_syn_reg(edev_ctl, LLCC_DRAM_UE, i);
}
if (!ret)
irq_handled = true;
ret = regmap_read(drv->regmap,
drv->offsets[i] + TRP_INTERRUPT_0_STATUS,
&trp_error);
if (!ret && (trp_error & SB_ECC_ERROR)) {
edac_printk(KERN_CRIT, EDAC_LLCC,
"Single Bit Error detected in Tag RAM\n");
ret = dump_syn_reg(edev_ctl, LLCC_TRAM_CE, i);
} else if (!ret && (trp_error & DB_ECC_ERROR)) {
edac_printk(KERN_CRIT, EDAC_LLCC,
"Double Bit Error detected in Tag RAM\n");
ret = dump_syn_reg(edev_ctl, LLCC_TRAM_UE, i);
}
if (!ret)
irq_handled = true;
}
if (irq_handled)
irq_rc = IRQ_HANDLED;
return irq_rc;
}
static int qcom_llcc_edac_probe(struct platform_device *pdev)
{
struct llcc_drv_data *llcc_driv_data = pdev->dev.platform_data;
struct edac_device_ctl_info *edev_ctl;
struct device *dev = &pdev->dev;
int ecc_irq;
int rc;
rc = qcom_llcc_core_setup(llcc_driv_data->bcast_regmap);
if (rc)
return rc;
/* Allocate edac control info */
edev_ctl = edac_device_alloc_ctl_info(0, "qcom-llcc", 1, "bank",
llcc_driv_data->num_banks, 1,
NULL, 0,
edac_device_alloc_index());
if (!edev_ctl)
return -ENOMEM;
edev_ctl->dev = dev;
edev_ctl->mod_name = dev_name(dev);
edev_ctl->dev_name = dev_name(dev);
edev_ctl->ctl_name = "llcc";
edev_ctl->panic_on_ue = LLCC_ERP_PANIC_ON_UE;
edev_ctl->pvt_info = llcc_driv_data;
rc = edac_device_add_device(edev_ctl);
if (rc)
goto out_mem;
platform_set_drvdata(pdev, edev_ctl);
/* Request for ecc irq */
ecc_irq = llcc_driv_data->ecc_irq;
if (ecc_irq < 0) {
rc = -ENODEV;
goto out_dev;
}
rc = devm_request_irq(dev, ecc_irq, llcc_ecc_irq_handler,
IRQF_TRIGGER_HIGH, "llcc_ecc", edev_ctl);
if (rc)
goto out_dev;
return rc;
out_dev:
edac_device_del_device(edev_ctl->dev);
out_mem:
edac_device_free_ctl_info(edev_ctl);
return rc;
}
static int qcom_llcc_edac_remove(struct platform_device *pdev)
{
struct edac_device_ctl_info *edev_ctl = dev_get_drvdata(&pdev->dev);
edac_device_del_device(edev_ctl->dev);
edac_device_free_ctl_info(edev_ctl);
return 0;
}
static struct platform_driver qcom_llcc_edac_driver = {
.probe = qcom_llcc_edac_probe,
.remove = qcom_llcc_edac_remove,
.driver = {
.name = "qcom_llcc_edac",
},
};
module_platform_driver(qcom_llcc_edac_driver);
MODULE_DESCRIPTION("QCOM EDAC driver");
MODULE_LICENSE("GPL v2");

74
drivers/firmware/qcom_scm.c
View File

@ -525,34 +525,44 @@ static int qcom_scm_probe(struct platform_device *pdev)
return ret;
clks = (unsigned long)of_device_get_match_data(&pdev->dev);
if (clks & SCM_HAS_CORE_CLK) {
scm->core_clk = devm_clk_get(&pdev->dev, "core");
if (IS_ERR(scm->core_clk)) {
if (PTR_ERR(scm->core_clk) != -EPROBE_DEFER)
dev_err(&pdev->dev,
"failed to acquire core clk\n");
scm->core_clk = devm_clk_get(&pdev->dev, "core");
if (IS_ERR(scm->core_clk)) {
if (PTR_ERR(scm->core_clk) == -EPROBE_DEFER)
return PTR_ERR(scm->core_clk);
if (clks & SCM_HAS_CORE_CLK) {
dev_err(&pdev->dev, "failed to acquire core clk\n");
return PTR_ERR(scm->core_clk);
}
scm->core_clk = NULL;
}
if (clks & SCM_HAS_IFACE_CLK) {
scm->iface_clk = devm_clk_get(&pdev->dev, "iface");
if (IS_ERR(scm->iface_clk)) {
if (PTR_ERR(scm->iface_clk) != -EPROBE_DEFER)
dev_err(&pdev->dev,
"failed to acquire iface clk\n");
scm->iface_clk = devm_clk_get(&pdev->dev, "iface");
if (IS_ERR(scm->iface_clk)) {
if (PTR_ERR(scm->iface_clk) == -EPROBE_DEFER)
return PTR_ERR(scm->iface_clk);
if (clks & SCM_HAS_IFACE_CLK) {
dev_err(&pdev->dev, "failed to acquire iface clk\n");
return PTR_ERR(scm->iface_clk);
}
scm->iface_clk = NULL;
}
if (clks & SCM_HAS_BUS_CLK) {
scm->bus_clk = devm_clk_get(&pdev->dev, "bus");
if (IS_ERR(scm->bus_clk)) {
if (PTR_ERR(scm->bus_clk) != -EPROBE_DEFER)
dev_err(&pdev->dev,
"failed to acquire bus clk\n");
scm->bus_clk = devm_clk_get(&pdev->dev, "bus");
if (IS_ERR(scm->bus_clk)) {
if (PTR_ERR(scm->bus_clk) == -EPROBE_DEFER)
return PTR_ERR(scm->bus_clk);
if (clks & SCM_HAS_BUS_CLK) {
dev_err(&pdev->dev, "failed to acquire bus clk\n");
return PTR_ERR(scm->bus_clk);
}
scm->bus_clk = NULL;
}
scm->reset.ops = &qcom_scm_pas_reset_ops;
@ -594,23 +604,23 @@ static const struct of_device_id qcom_scm_dt_match[] = {
{ .compatible = "qcom,scm-apq8064",
/* FIXME: This should have .data = (void *) SCM_HAS_CORE_CLK */
},
{ .compatible = "qcom,scm-msm8660",
.data = (void *) SCM_HAS_CORE_CLK,
{ .compatible = "qcom,scm-apq8084", .data = (void *)(SCM_HAS_CORE_CLK |
SCM_HAS_IFACE_CLK |
SCM_HAS_BUS_CLK)
},
{ .compatible = "qcom,scm-msm8960",
.data = (void *) SCM_HAS_CORE_CLK,
{ .compatible = "qcom,scm-ipq4019" },
{ .compatible = "qcom,scm-msm8660", .data = (void *) SCM_HAS_CORE_CLK },
{ .compatible = "qcom,scm-msm8960", .data = (void *) SCM_HAS_CORE_CLK },
{ .compatible = "qcom,scm-msm8916", .data = (void *)(SCM_HAS_CORE_CLK |
SCM_HAS_IFACE_CLK |
SCM_HAS_BUS_CLK)
},
{ .compatible = "qcom,scm-msm8996",
.data = NULL, /* no clocks */
},
{ .compatible = "qcom,scm-ipq4019",
.data = NULL, /* no clocks */
},
{ .compatible = "qcom,scm",
.data = (void *)(SCM_HAS_CORE_CLK
| SCM_HAS_IFACE_CLK
| SCM_HAS_BUS_CLK),
{ .compatible = "qcom,scm-msm8974", .data = (void *)(SCM_HAS_CORE_CLK |
SCM_HAS_IFACE_CLK |
SCM_HAS_BUS_CLK)
},
{ .compatible = "qcom,scm-msm8996" },
{ .compatible = "qcom,scm" },
{}
};

21
drivers/soc/qcom/Kconfig
View File

@ -33,7 +33,7 @@ config QCOM_GLINK_SSR
config QCOM_GSBI
tristate "QCOM General Serial Bus Interface"
depends on ARCH_QCOM
depends on ARCH_QCOM || COMPILE_TEST
select MFD_SYSCON
help
Say y here to enable GSBI support. The GSBI provides control
@ -42,7 +42,7 @@ config QCOM_GSBI
config QCOM_LLCC
tristate "Qualcomm Technologies, Inc. LLCC driver"
depends on ARCH_QCOM
depends on ARCH_QCOM || COMPILE_TEST
help
Qualcomm Technologies, Inc. platform specific
Last Level Cache Controller(LLCC) driver. This provides interfaces
@ -73,7 +73,8 @@ config QCOM_PM
config QCOM_QMI_HELPERS
tristate
depends on ARCH_QCOM && NET
depends on ARCH_QCOM || COMPILE_TEST
depends on NET
help
Helper library for handling QMI encoded messages. QMI encoded
messages are used in communication between the majority of QRTR
@ -94,7 +95,7 @@ config QCOM_RMTFS_MEM
config QCOM_RPMH
bool "Qualcomm RPM-Hardened (RPMH) Communication"
depends on ARCH_QCOM && ARM64 && OF || COMPILE_TEST
depends on ARCH_QCOM && ARM64 || COMPILE_TEST
help
Support for communication with the hardened-RPM blocks in
Qualcomm Technologies Inc (QTI) SoCs. RPMH communication uses an
@ -104,7 +105,7 @@ config QCOM_RPMH
config QCOM_SMEM
tristate "Qualcomm Shared Memory Manager (SMEM)"
depends on ARCH_QCOM
depends on ARCH_QCOM || COMPILE_TEST
depends on HWSPINLOCK
help
Say y here to enable support for the Qualcomm Shared Memory Manager.
@ -113,8 +114,8 @@ config QCOM_SMEM
config QCOM_SMD_RPM
tristate "Qualcomm Resource Power Manager (RPM) over SMD"
depends on ARCH_QCOM
depends on RPMSG && OF
depends on ARCH_QCOM || COMPILE_TEST
depends on RPMSG
help
If you say yes to this option, support will be included for the
Resource Power Manager system found in the Qualcomm 8974 based
@ -134,6 +135,7 @@ config QCOM_SMP2P
depends on MAILBOX
depends on QCOM_SMEM
select QCOM_SMEM_STATE
select IRQ_DOMAIN
help
Say yes here to support the Qualcomm Shared Memory Point to Point
protocol.
@ -142,13 +144,14 @@ config QCOM_SMSM
tristate "Qualcomm Shared Memory State Machine"
depends on QCOM_SMEM
select QCOM_SMEM_STATE
select IRQ_DOMAIN
help
Say yes here to support the Qualcomm Shared Memory State Machine.
The state machine is represented by bits in shared memory.
config QCOM_WCNSS_CTRL
tristate "Qualcomm WCNSS control driver"
depends on ARCH_QCOM
depends on ARCH_QCOM || COMPILE_TEST
depends on RPMSG
help
Client driver for the WCNSS_CTRL SMD channel, used to download nv
@ -156,7 +159,7 @@ config QCOM_WCNSS_CTRL
config QCOM_APR
tristate "Qualcomm APR Bus (Asynchronous Packet Router)"
depends on ARCH_QCOM
depends on ARCH_QCOM || COMPILE_TEST
depends on RPMSG
help
Enable APR IPC protocol support between

6
drivers/soc/qcom/apr.c
View File

@ -87,7 +87,7 @@ static int apr_callback(struct rpmsg_device *rpdev, void *buf,
}
if (hdr->pkt_size < APR_HDR_SIZE || hdr->pkt_size != len) {
dev_err(apr->dev, "APR: Wrong paket size\n");
dev_err(apr->dev, "APR: Wrong packet size\n");
return -EINVAL;
}
@ -219,9 +219,9 @@ static int apr_add_device(struct device *dev, struct device_node *np,
adev->domain_id = id->domain_id;
adev->version = id->svc_version;
if (np)
strncpy(adev->name, np->name, APR_NAME_SIZE);
strscpy(adev->name, np->name, APR_NAME_SIZE);
else
strncpy(adev->name, id->name, APR_NAME_SIZE);
strscpy(adev->name, id->name, APR_NAME_SIZE);
dev_set_name(&adev->dev, "aprsvc:%s:%x:%x", adev->name,
id->domain_id, id->svc_id);

74
drivers/soc/qcom/llcc-slice.c
View File

@ -13,6 +13,7 @@
#include <linux/mutex.h>
#include <linux/of_device.h>
#include <linux/regmap.h>
#include <linux/sizes.h>
#include <linux/slab.h>
#include <linux/soc/qcom/llcc-qcom.h>
@ -106,22 +107,24 @@ static int llcc_update_act_ctrl(u32 sid,
u32 slice_status;
int ret;
act_ctrl_reg = drv_data->bcast_off + LLCC_TRP_ACT_CTRLn(sid);
status_reg = drv_data->bcast_off + LLCC_TRP_STATUSn(sid);
act_ctrl_reg = LLCC_TRP_ACT_CTRLn(sid);
status_reg = LLCC_TRP_STATUSn(sid);
/* Set the ACTIVE trigger */
act_ctrl_reg_val |= ACT_CTRL_ACT_TRIG;
ret = regmap_write(drv_data->regmap, act_ctrl_reg, act_ctrl_reg_val);
ret = regmap_write(drv_data->bcast_regmap, act_ctrl_reg,
act_ctrl_reg_val);
if (ret)
return ret;
/* Clear the ACTIVE trigger */
act_ctrl_reg_val &= ~ACT_CTRL_ACT_TRIG;
ret = regmap_write(drv_data->regmap, act_ctrl_reg, act_ctrl_reg_val);
ret = regmap_write(drv_data->bcast_regmap, act_ctrl_reg,
act_ctrl_reg_val);
if (ret)
return ret;
ret = regmap_read_poll_timeout(drv_data->regmap, status_reg,
ret = regmap_read_poll_timeout(drv_data->bcast_regmap, status_reg,
slice_status, !(slice_status & status),
0, LLCC_STATUS_READ_DELAY);
return ret;
@ -223,19 +226,16 @@ static int qcom_llcc_cfg_program(struct platform_device *pdev)
u32 attr0_val;
u32 max_cap_cacheline;
u32 sz;
int ret;
int ret = 0;
const struct llcc_slice_config *llcc_table;
struct llcc_slice_desc desc;
u32 bcast_off = drv_data->bcast_off;
sz = drv_data->cfg_size;
llcc_table = drv_data->cfg;
for (i = 0; i < sz; i++) {
attr1_cfg = bcast_off +
LLCC_TRP_ATTR1_CFGn(llcc_table[i].slice_id);
attr0_cfg = bcast_off +
LLCC_TRP_ATTR0_CFGn(llcc_table[i].slice_id);
attr1_cfg = LLCC_TRP_ATTR1_CFGn(llcc_table[i].slice_id);
attr0_cfg = LLCC_TRP_ATTR0_CFGn(llcc_table[i].slice_id);
attr1_val = llcc_table[i].cache_mode;
attr1_val |= llcc_table[i].probe_target_ways <<
@ -260,10 +260,12 @@ static int qcom_llcc_cfg_program(struct platform_device *pdev)
attr0_val = llcc_table[i].res_ways & ATTR0_RES_WAYS_MASK;
attr0_val |= llcc_table[i].bonus_ways << ATTR0_BONUS_WAYS_SHIFT;
ret = regmap_write(drv_data->regmap, attr1_cfg, attr1_val);
ret = regmap_write(drv_data->bcast_regmap, attr1_cfg,
attr1_val);
if (ret)
return ret;
ret = regmap_write(drv_data->regmap, attr0_cfg, attr0_val);
ret = regmap_write(drv_data->bcast_regmap, attr0_cfg,
attr0_val);
if (ret)
return ret;
if (llcc_table[i].activate_on_init) {
@ -279,24 +281,37 @@ int qcom_llcc_probe(struct platform_device *pdev,
{
u32 num_banks;
struct device *dev = &pdev->dev;
struct resource *res;
void __iomem *base;
struct resource *llcc_banks_res, *llcc_bcast_res;
void __iomem *llcc_banks_base, *llcc_bcast_base;
int ret, i;
struct platform_device *llcc_edac;
drv_data = devm_kzalloc(dev, sizeof(*drv_data), GFP_KERNEL);
if (!drv_data)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(base))
return PTR_ERR(base);
llcc_banks_res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
"llcc_base");
llcc_banks_base = devm_ioremap_resource(&pdev->dev, llcc_banks_res);
if (IS_ERR(llcc_banks_base))
return PTR_ERR(llcc_banks_base);
drv_data->regmap = devm_regmap_init_mmio(dev, base,
&llcc_regmap_config);
drv_data->regmap = devm_regmap_init_mmio(dev, llcc_banks_base,
&llcc_regmap_config);
if (IS_ERR(drv_data->regmap))
return PTR_ERR(drv_data->regmap);
llcc_bcast_res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
"llcc_broadcast_base");
llcc_bcast_base = devm_ioremap_resource(&pdev->dev, llcc_bcast_res);
if (IS_ERR(llcc_bcast_base))
return PTR_ERR(llcc_bcast_base);
drv_data->bcast_regmap = devm_regmap_init_mmio(dev, llcc_bcast_base,
&llcc_regmap_config);
if (IS_ERR(drv_data->bcast_regmap))
return PTR_ERR(drv_data->bcast_regmap);
ret = regmap_read(drv_data->regmap, LLCC_COMMON_STATUS0,
&num_banks);
if (ret)
@ -318,8 +333,6 @@ int qcom_llcc_probe(struct platform_device *pdev,
for (i = 0; i < num_banks; i++)
drv_data->offsets[i] = i * BANK_OFFSET_STRIDE;
drv_data->bcast_off = num_banks * BANK_OFFSET_STRIDE;
drv_data->bitmap = devm_kcalloc(dev,
BITS_TO_LONGS(drv_data->max_slices), sizeof(unsigned long),
GFP_KERNEL);
@ -331,7 +344,20 @@ int qcom_llcc_probe(struct platform_device *pdev,
mutex_init(&drv_data->lock);
platform_set_drvdata(pdev, drv_data);
return qcom_llcc_cfg_program(pdev);
ret = qcom_llcc_cfg_program(pdev);
if (ret)
return ret;
drv_data->ecc_irq = platform_get_irq(pdev, 0);
if (drv_data->ecc_irq >= 0) {
llcc_edac = platform_device_register_data(&pdev->dev,
"qcom_llcc_edac", -1, drv_data,
sizeof(*drv_data));
if (IS_ERR(llcc_edac))
dev_err(dev, "Failed to register llcc edac driver\n");
}
return ret;
}
EXPORT_SYMBOL_GPL(qcom_llcc_probe);

41
drivers/soc/qcom/qcom-geni-se.c
View File

@ -513,7 +513,7 @@ EXPORT_SYMBOL(geni_se_resources_on);
*/
int geni_se_clk_tbl_get(struct geni_se *se, unsigned long **tbl)
{
unsigned long freq = 0;
long freq = 0;
int i;
if (se->clk_perf_tbl) {
@ -529,7 +529,7 @@ int geni_se_clk_tbl_get(struct geni_se *se, unsigned long **tbl)
for (i = 0; i < MAX_CLK_PERF_LEVEL; i++) {
freq = clk_round_rate(se->clk, freq + 1);
if (!freq || freq == se->clk_perf_tbl[i - 1])
if (freq <= 0 || freq == se->clk_perf_tbl[i - 1])
break;
se->clk_perf_tbl[i] = freq;
}
@ -544,16 +544,17 @@ EXPORT_SYMBOL(geni_se_clk_tbl_get);
* @se: Pointer to the concerned serial engine.
* @req_freq: Requested clock frequency.
* @index: Index of the resultant frequency in the table.
* @res_freq: Resultant frequency which matches or is closer to the
* requested frequency.
* @res_freq: Resultant frequency of the source clock.
* @exact: Flag to indicate exact multiple requirement of the requested
* frequency.
*
* This function is called by the protocol drivers to determine the matching
* or exact multiple of the requested frequency, as provided by the serial
* engine clock in order to meet the performance requirements. If there is
* no matching or exact multiple of the requested frequency found, then it
* selects the closest floor frequency, if exact flag is not set.
* This function is called by the protocol drivers to determine the best match
* of the requested frequency as provided by the serial engine clock in order
* to meet the performance requirements.
*
* If we return success:
* - if @exact is true then @res_freq / <an_integer> == @req_freq
* - if @exact is false then @res_freq / <an_integer> <= @req_freq
*
* Return: 0 on success, standard Linux error codes on failure.
*/
@ -564,6 +565,9 @@ int geni_se_clk_freq_match(struct geni_se *se, unsigned long req_freq,
unsigned long *tbl;
int num_clk_levels;
int i;
unsigned long best_delta;
unsigned long new_delta;
unsigned int divider;
num_clk_levels = geni_se_clk_tbl_get(se, &tbl);
if (num_clk_levels < 0)
@ -572,18 +576,21 @@ int geni_se_clk_freq_match(struct geni_se *se, unsigned long req_freq,
if (num_clk_levels == 0)
return -EINVAL;
*res_freq = 0;
best_delta = ULONG_MAX;
for (i = 0; i < num_clk_levels; i++) {
if (!(tbl[i] % req_freq)) {
divider = DIV_ROUND_UP(tbl[i], req_freq);
new_delta = req_freq - tbl[i] / divider;
if (new_delta < best_delta) {
/* We have a new best! */
*index = i;
*res_freq = tbl[i];
return 0;
}
if (!(*res_freq) || ((tbl[i] > *res_freq) &&
(tbl[i] < req_freq))) {
*index = i;
*res_freq = tbl[i];
/* If the new best is exact then we're done */
if (new_delta == 0)
return 0;
/* Record how close we got */
best_delta = new_delta;
}
}

5
drivers/soc/qcom/rmtfs_mem.c
View File

@ -212,6 +212,11 @@ static int qcom_rmtfs_mem_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "failed to parse qcom,vmid\n");
goto remove_cdev;
} else if (!ret) {
if (!qcom_scm_is_available()) {
ret = -EPROBE_DEFER;
goto remove_cdev;
}
perms[0].vmid = QCOM_SCM_VMID_HLOS;
perms[0].perm = QCOM_SCM_PERM_RW;
perms[1].vmid = vmid;

2
drivers/soc/qcom/rpmh-rsc.c
View File

@ -121,6 +121,7 @@ static int tcs_invalidate(struct rsc_drv *drv, int type)
return -EAGAIN;
}
write_tcs_reg_sync(drv, RSC_DRV_CMD_ENABLE, m, 0);
write_tcs_reg_sync(drv, RSC_DRV_CMD_WAIT_FOR_CMPL, m, 0);
}
bitmap_zero(tcs->slots, MAX_TCS_SLOTS);
spin_unlock(&tcs->lock);
@ -239,6 +240,7 @@ static irqreturn_t tcs_tx_done(int irq, void *p)
skip:
/* Reclaim the TCS */
write_tcs_reg(drv, RSC_DRV_CMD_ENABLE, i, 0);
write_tcs_reg(drv, RSC_DRV_CMD_WAIT_FOR_CMPL, i, 0);
write_tcs_reg(drv, RSC_DRV_IRQ_CLEAR, 0, BIT(i));
spin_lock(&drv->lock);
clear_bit(i, drv->tcs_in_use);

174
drivers/soc/qcom/smem.c
View File

@ -18,6 +18,7 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/platform_device.h>
#include <linux/sizes.h>
#include <linux/slab.h>
#include <linux/soc/qcom/smem.h>
@ -277,7 +278,7 @@ struct qcom_smem {
u32 item_count;
unsigned num_regions;
struct smem_region regions[0];
struct smem_region regions[];
};
static void *
@ -489,7 +490,7 @@ static void *qcom_smem_get_global(struct qcom_smem *smem,
size_t *size)
{
struct smem_header *header;
struct smem_region *area;
struct smem_region *region;
struct smem_global_entry *entry;
u32 aux_base;
unsigned i;
@ -502,12 +503,12 @@ static void *qcom_smem_get_global(struct qcom_smem *smem,
aux_base = le32_to_cpu(entry->aux_base) & AUX_BASE_MASK;
for (i = 0; i < smem->num_regions; i++) {
area = &smem->regions[i];
region = &smem->regions[i];
if (area->aux_base == aux_base || !aux_base) {
if (region->aux_base == aux_base || !aux_base) {
if (size != NULL)
*size = le32_to_cpu(entry->size);
return area->virt_base + le32_to_cpu(entry->offset);
return region->virt_base + le32_to_cpu(entry->offset);
}
}
@ -722,12 +723,59 @@ static u32 qcom_smem_get_item_count(struct qcom_smem *smem)
return le16_to_cpu(info->num_items);
}
/*
* Validate the partition header for a partition whose partition
* table entry is supplied. Returns a pointer to its header if
* valid, or a null pointer otherwise.
*/
static struct smem_partition_header *
qcom_smem_partition_header(struct qcom_smem *smem,
struct smem_ptable_entry *entry, u16 host0, u16 host1)
{
struct smem_partition_header *header;
u32 size;
header = smem->regions[0].virt_base + le32_to_cpu(entry->offset);
if (memcmp(header->magic, SMEM_PART_MAGIC, sizeof(header->magic))) {
dev_err(smem->dev, "bad partition magic %02x %02x %02x %02x\n",
header->magic[0], header->magic[1],
header->magic[2], header->magic[3]);
return NULL;
}
if (host0 != le16_to_cpu(header->host0)) {
dev_err(smem->dev, "bad host0 (%hu != %hu)\n",
host0, le16_to_cpu(header->host0));
return NULL;
}
if (host1 != le16_to_cpu(header->host1)) {
dev_err(smem->dev, "bad host1 (%hu != %hu)\n",
host1, le16_to_cpu(header->host1));
return NULL;
}
size = le32_to_cpu(header->size);
if (size != le32_to_cpu(entry->size)) {
dev_err(smem->dev, "bad partition size (%u != %u)\n",
size, le32_to_cpu(entry->size));
return NULL;
}
if (le32_to_cpu(header->offset_free_uncached) > size) {
dev_err(smem->dev, "bad partition free uncached (%u > %u)\n",
le32_to_cpu(header->offset_free_uncached), size);
return NULL;
}
return header;
}
static int qcom_smem_set_global_partition(struct qcom_smem *smem)
{
struct smem_partition_header *header;
struct smem_ptable_entry *entry;
struct smem_ptable *ptable;
u32 host0, host1, size;
bool found = false;
int i;
@ -742,10 +790,15 @@ static int qcom_smem_set_global_partition(struct qcom_smem *smem)
for (i = 0; i < le32_to_cpu(ptable->num_entries); i++) {
entry = &ptable->entry[i];
host0 = le16_to_cpu(entry->host0);
host1 = le16_to_cpu(entry->host1);
if (!le32_to_cpu(entry->offset))
continue;
if (!le32_to_cpu(entry->size))
continue;
if (host0 == SMEM_GLOBAL_HOST && host0 == host1) {
if (le16_to_cpu(entry->host0) != SMEM_GLOBAL_HOST)
continue;
if (le16_to_cpu(entry->host1) == SMEM_GLOBAL_HOST) {
found = true;
break;
}
@ -756,36 +809,10 @@ static int qcom_smem_set_global_partition(struct qcom_smem *smem)
return -EINVAL;
}
if (!le32_to_cpu(entry->offset) || !le32_to_cpu(entry->size)) {
dev_err(smem->dev, "Invalid entry for global partition\n");
header = qcom_smem_partition_header(smem, entry,
SMEM_GLOBAL_HOST, SMEM_GLOBAL_HOST);
if (!header)
return -EINVAL;
}
header = smem->regions[0].virt_base + le32_to_cpu(entry->offset);
host0 = le16_to_cpu(header->host0);
host1 = le16_to_cpu(header->host1);
if (memcmp(header->magic, SMEM_PART_MAGIC, sizeof(header->magic))) {
dev_err(smem->dev, "Global partition has invalid magic\n");
return -EINVAL;
}
if (host0 != SMEM_GLOBAL_HOST && host1 != SMEM_GLOBAL_HOST) {
dev_err(smem->dev, "Global partition hosts are invalid\n");
return -EINVAL;
}
if (le32_to_cpu(header->size) != le32_to_cpu(entry->size)) {
dev_err(smem->dev, "Global partition has invalid size\n");
return -EINVAL;
}
size = le32_to_cpu(header->offset_free_uncached);
if (size > le32_to_cpu(header->size)) {
dev_err(smem->dev,
"Global partition has invalid free pointer\n");
return -EINVAL;
}
smem->global_partition = header;
smem->global_cacheline = le32_to_cpu(entry->cacheline);
@ -793,14 +820,14 @@ static int qcom_smem_set_global_partition(struct qcom_smem *smem)
return 0;
}
static int qcom_smem_enumerate_partitions(struct qcom_smem *smem,
unsigned int local_host)
static int
qcom_smem_enumerate_partitions(struct qcom_smem *smem, u16 local_host)
{
struct smem_partition_header *header;
struct smem_ptable_entry *entry;
struct smem_ptable *ptable;
unsigned int remote_host;
u32 host0, host1;
u16 host0, host1;
int i;
ptable = qcom_smem_get_ptable(smem);
@ -809,71 +836,33 @@ static int qcom_smem_enumerate_partitions(struct qcom_smem *smem,
for (i = 0; i < le32_to_cpu(ptable->num_entries); i++) {
entry = &ptable->entry[i];
host0 = le16_to_cpu(entry->host0);
host1 = le16_to_cpu(entry->host1);
if (host0 != local_host && host1 != local_host)
continue;
if (!le32_to_cpu(entry->offset))
continue;
if (!le32_to_cpu(entry->size))
continue;
host0 = le16_to_cpu(entry->host0);
host1 = le16_to_cpu(entry->host1);
if (host0 == local_host)
remote_host = host1;
else
else if (host1 == local_host)
remote_host = host0;
else
continue;
if (remote_host >= SMEM_HOST_COUNT) {
dev_err(smem->dev,
"Invalid remote host %d\n",
remote_host);
dev_err(smem->dev, "bad host %hu\n", remote_host);
return -EINVAL;
}
if (smem->partitions[remote_host]) {
dev_err(smem->dev,
"Already found a partition for host %d\n",
remote_host);
dev_err(smem->dev, "duplicate host %hu\n", remote_host);
return -EINVAL;
}
header = smem->regions[0].virt_base + le32_to_cpu(entry->offset);
host0 = le16_to_cpu(header->host0);
host1 = le16_to_cpu(header->host1);
if (memcmp(header->magic, SMEM_PART_MAGIC,
sizeof(header->magic))) {
dev_err(smem->dev,
"Partition %d has invalid magic\n", i);
header = qcom_smem_partition_header(smem, entry, host0, host1);
if (!header)
return -EINVAL;
}
if (host0 != local_host && host1 != local_host) {
dev_err(smem->dev,
"Partition %d hosts are invalid\n", i);
return -EINVAL;
}
if (host0 != remote_host && host1 != remote_host) {
dev_err(smem->dev,
"Partition %d hosts are invalid\n", i);
return -EINVAL;
}
if (le32_to_cpu(header->size) != le32_to_cpu(entry->size)) {
dev_err(smem->dev,
"Partition %d has invalid size\n", i);
return -EINVAL;
}
if (le32_to_cpu(header->offset_free_uncached) > le32_to_cpu(header->size)) {
dev_err(smem->dev,
"Partition %d has invalid free pointer\n", i);
return -EINVAL;
}
smem->partitions[remote_host] = header;
smem->cacheline[remote_host] = le32_to_cpu(entry->cacheline);
@ -887,6 +876,7 @@ static int qcom_smem_map_memory(struct qcom_smem *smem, struct device *dev,
{
struct device_node *np;
struct resource r;
resource_size_t size;
int ret;
np = of_parse_phandle(dev->of_node, name, 0);
@ -899,12 +889,13 @@ static int qcom_smem_map_memory(struct qcom_smem *smem, struct device *dev,
of_node_put(np);
if (ret)
return ret;
size = resource_size(&r);
smem->regions[i].aux_base = (u32)r.start;
smem->regions[i].size = resource_size(&r);
smem->regions[i].virt_base = devm_ioremap_wc(dev, r.start, resource_size(&r));
smem->regions[i].virt_base = devm_ioremap_wc(dev, r.start, size);
if (!smem->regions[i].virt_base)
return -ENOMEM;
smem->regions[i].aux_base = (u32)r.start;
smem->regions[i].size = size;
return 0;
}
@ -962,6 +953,7 @@ static int qcom_smem_probe(struct platform_device *pdev)
return -EINVAL;
}
BUILD_BUG_ON(SMEM_HOST_APPS >= SMEM_HOST_COUNT);
ret = qcom_smem_enumerate_partitions(smem, SMEM_HOST_APPS);
if (ret < 0 && ret != -ENOENT)
return ret;

3
drivers/soc/qcom/spm.c
View File

@ -219,6 +219,9 @@ static int __init qcom_cpuidle_init(struct device_node *cpu_node, int cpu)
cpumask_t mask;
bool use_scm_power_down = false;
if (!qcom_scm_is_available())
return -EPROBE_DEFER;
for (i = 0; ; i++) {
state_node = of_parse_phandle(cpu_node, "cpu-idle-states", i);
if (!state_node)

2
drivers/soc/qcom/wcnss_ctrl.c
View File

@ -281,7 +281,7 @@ struct rpmsg_endpoint *qcom_wcnss_open_channel(void *wcnss, const char *name, rp
struct rpmsg_channel_info chinfo;
struct wcnss_ctrl *_wcnss = wcnss;
strncpy(chinfo.name, name, sizeof(chinfo.name));
strscpy(chinfo.name, name, sizeof(chinfo.name));
chinfo.src = RPMSG_ADDR_ANY;
chinfo.dst = RPMSG_ADDR_ANY;

13
include/linux/qcom-geni-se.h
View File

@ -225,19 +225,14 @@ struct geni_se {
#define HW_VER_MINOR_SHFT 16
#define HW_VER_STEP_MASK GENMASK(15, 0)
#define GENI_SE_VERSION_MAJOR(ver) ((ver & HW_VER_MAJOR_MASK) >> HW_VER_MAJOR_SHFT)
#define GENI_SE_VERSION_MINOR(ver) ((ver & HW_VER_MINOR_MASK) >> HW_VER_MINOR_SHFT)
#define GENI_SE_VERSION_STEP(ver) (ver & HW_VER_STEP_MASK)
#if IS_ENABLED(CONFIG_QCOM_GENI_SE)
u32 geni_se_get_qup_hw_version(struct geni_se *se);
#define geni_se_get_wrapper_version(se, major, minor, step) do { \
u32 ver; \
\
ver = geni_se_get_qup_hw_version(se); \
major = (ver & HW_VER_MAJOR_MASK) >> HW_VER_MAJOR_SHFT; \
minor = (ver & HW_VER_MINOR_MASK) >> HW_VER_MINOR_SHFT; \
step = version & HW_VER_STEP_MASK; \
} while (0)
/**
* geni_se_read_proto() - Read the protocol configured for a serial engine
* @se: Pointer to the concerned serial engine.

30
include/linux/soc/qcom/llcc-qcom.h
View File

@ -70,25 +70,51 @@ struct llcc_slice_config {
/**
* llcc_drv_data - Data associated with the llcc driver
* @regmap: regmap associated with the llcc device
* @bcast_regmap: regmap associated with llcc broadcast offset
* @cfg: pointer to the data structure for slice configuration
* @lock: mutex associated with each slice
* @cfg_size: size of the config data table
* @max_slices: max slices as read from device tree
* @bcast_off: Offset of the broadcast bank
* @num_banks: Number of llcc banks
* @bitmap: Bit map to track the active slice ids
* @offsets: Pointer to the bank offsets array
* @ecc_irq: interrupt for llcc cache error detection and reporting
*/
struct llcc_drv_data {
struct regmap *regmap;
struct regmap *bcast_regmap;
const struct llcc_slice_config *cfg;
struct mutex lock;
u32 cfg_size;
u32 max_slices;
u32 bcast_off;
u32 num_banks;
unsigned long *bitmap;
u32 *offsets;
int ecc_irq;
};
/**
* llcc_edac_reg_data - llcc edac registers data for each error type
* @name: Name of the error
* @synd_reg: Syndrome register address
* @count_status_reg: Status register address to read the error count
* @ways_status_reg: Status register address to read the error ways
* @reg_cnt: Number of registers
* @count_mask: Mask value to get the error count
* @ways_mask: Mask value to get the error ways
* @count_shift: Shift value to get the error count
* @ways_shift: Shift value to get the error ways
*/
struct llcc_edac_reg_data {
char *name;
u64 synd_reg;
u64 count_status_reg;
u64 ways_status_reg;
u32 reg_cnt;
u32 count_mask;
u32 ways_mask;
u8 count_shift;
u8 ways_shift;
};
#if IS_ENABLED(CONFIG_QCOM_LLCC)