| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1643453979557@kroah.com>
Date: Sat, 29 Jan 2022 11:59:40 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
torvalds@...ux-foundation.org, stable@...r.kernel.org
Cc: lwn@....net, jslaby@...e.cz,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: Linux 5.4.175
diff --git a/Makefile b/Makefile
index 3075f06f7713..2f6c51097d00 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 4
-SUBLEVEL = 174
+SUBLEVEL = 175
EXTRAVERSION =
NAME = Kleptomaniac Octopus
diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi
index 50c64146d492..af81f386793c 100644
--- a/arch/arm/boot/dts/bcm283x.dtsi
+++ b/arch/arm/boot/dts/bcm283x.dtsi
@@ -183,6 +183,7 @@
interrupt-controller;
#interrupt-cells = <2>;
+ gpio-ranges = <&gpio 0 0 54>;
/* Defines pin muxing groups according to
* BCM2835-ARM-Peripherals.pdf page 102.
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h
index 08b35587bc6d..352c102f3459 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h
+++ b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h
@@ -118,6 +118,9 @@ struct drm_i915_gem_object {
I915_SELFTEST_DECLARE(struct list_head st_link);
+ unsigned long flags;
+#define I915_BO_WAS_BOUND_BIT 0
+
/*
* Is the object to be mapped as read-only to the GPU
* Only honoured if hardware has relevant pte bit
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_pages.c b/drivers/gpu/drm/i915/gem/i915_gem_pages.c
index 18f0ce0135c1..aa63fa0ab575 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_pages.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_pages.c
@@ -8,6 +8,8 @@
#include "i915_gem_object.h"
#include "i915_scatterlist.h"
+#include "gt/intel_gt.h"
+
void __i915_gem_object_set_pages(struct drm_i915_gem_object *obj,
struct sg_table *pages,
unsigned int sg_page_sizes)
@@ -176,6 +178,14 @@ __i915_gem_object_unset_pages(struct drm_i915_gem_object *obj)
__i915_gem_object_reset_page_iter(obj);
obj->mm.page_sizes.phys = obj->mm.page_sizes.sg = 0;
+ if (test_and_clear_bit(I915_BO_WAS_BOUND_BIT, &obj->flags)) {
+ struct drm_i915_private *i915 = to_i915(obj->base.dev);
+ intel_wakeref_t wakeref;
+
+ with_intel_runtime_pm_if_in_use(&i915->runtime_pm, wakeref)
+ intel_gt_invalidate_tlbs(&i915->gt);
+ }
+
return pages;
}
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index d48ec9a76ed1..c8c070375d29 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -15,6 +15,8 @@ void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
spin_lock_init(>->irq_lock);
+ mutex_init(>->tlb_invalidate_lock);
+
INIT_LIST_HEAD(>->closed_vma);
spin_lock_init(>->closed_lock);
@@ -266,3 +268,100 @@ void intel_gt_driver_late_release(struct intel_gt *gt)
intel_uc_driver_late_release(>->uc);
intel_gt_fini_reset(gt);
}
+
+struct reg_and_bit {
+ i915_reg_t reg;
+ u32 bit;
+};
+
+static struct reg_and_bit
+get_reg_and_bit(const struct intel_engine_cs *engine, const bool gen8,
+ const i915_reg_t *regs, const unsigned int num)
+{
+ const unsigned int class = engine->class;
+ struct reg_and_bit rb = { };
+
+ if (WARN_ON_ONCE(class >= num || !regs[class].reg))
+ return rb;
+
+ rb.reg = regs[class];
+ if (gen8 && class == VIDEO_DECODE_CLASS)
+ rb.reg.reg += 4 * engine->instance; /* GEN8_M2TCR */
+ else
+ rb.bit = engine->instance;
+
+ rb.bit = BIT(rb.bit);
+
+ return rb;
+}
+
+void intel_gt_invalidate_tlbs(struct intel_gt *gt)
+{
+ static const i915_reg_t gen8_regs[] = {
+ [RENDER_CLASS] = GEN8_RTCR,
+ [VIDEO_DECODE_CLASS] = GEN8_M1TCR, /* , GEN8_M2TCR */
+ [VIDEO_ENHANCEMENT_CLASS] = GEN8_VTCR,
+ [COPY_ENGINE_CLASS] = GEN8_BTCR,
+ };
+ static const i915_reg_t gen12_regs[] = {
+ [RENDER_CLASS] = GEN12_GFX_TLB_INV_CR,
+ [VIDEO_DECODE_CLASS] = GEN12_VD_TLB_INV_CR,
+ [VIDEO_ENHANCEMENT_CLASS] = GEN12_VE_TLB_INV_CR,
+ [COPY_ENGINE_CLASS] = GEN12_BLT_TLB_INV_CR,
+ };
+ struct drm_i915_private *i915 = gt->i915;
+ struct intel_uncore *uncore = gt->uncore;
+ struct intel_engine_cs *engine;
+ enum intel_engine_id id;
+ const i915_reg_t *regs;
+ unsigned int num = 0;
+
+ if (I915_SELFTEST_ONLY(gt->awake == -ENODEV))
+ return;
+
+ if (INTEL_GEN(i915) == 12) {
+ regs = gen12_regs;
+ num = ARRAY_SIZE(gen12_regs);
+ } else if (INTEL_GEN(i915) >= 8 && INTEL_GEN(i915) <= 11) {
+ regs = gen8_regs;
+ num = ARRAY_SIZE(gen8_regs);
+ } else if (INTEL_GEN(i915) < 8) {
+ return;
+ }
+
+ if (WARN_ONCE(!num, "Platform does not implement TLB invalidation!"))
+ return;
+
+ GEM_TRACE("\n");
+
+ assert_rpm_wakelock_held(&i915->runtime_pm);
+
+ mutex_lock(>->tlb_invalidate_lock);
+ intel_uncore_forcewake_get(uncore, FORCEWAKE_ALL);
+
+ for_each_engine(engine, gt, id) {
+ /*
+ * HW architecture suggest typical invalidation time at 40us,
+ * with pessimistic cases up to 100us and a recommendation to
+ * cap at 1ms. We go a bit higher just in case.
+ */
+ const unsigned int timeout_us = 100;
+ const unsigned int timeout_ms = 4;
+ struct reg_and_bit rb;
+
+ rb = get_reg_and_bit(engine, regs == gen8_regs, regs, num);
+ if (!i915_mmio_reg_offset(rb.reg))
+ continue;
+
+ intel_uncore_write_fw(uncore, rb.reg, rb.bit);
+ if (__intel_wait_for_register_fw(uncore,
+ rb.reg, rb.bit, 0,
+ timeout_us, timeout_ms,
+ NULL))
+ DRM_ERROR_RATELIMITED("%s TLB invalidation did not complete in %ums!\n",
+ engine->name, timeout_ms);
+ }
+
+ intel_uncore_forcewake_put(uncore, FORCEWAKE_ALL);
+ mutex_unlock(>->tlb_invalidate_lock);
+}
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h b/drivers/gpu/drm/i915/gt/intel_gt.h
index 4920cb351f10..4eab15bdcd97 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt.h
@@ -57,4 +57,6 @@ static inline bool intel_gt_is_wedged(struct intel_gt *gt)
void intel_gt_queue_hangcheck(struct intel_gt *gt);
+void intel_gt_invalidate_tlbs(struct intel_gt *gt);
+
#endif /* __INTEL_GT_H__ */
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h
index dc295c196d11..82a78719b32d 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h
@@ -40,6 +40,8 @@ struct intel_gt {
struct intel_uc uc;
+ struct mutex tlb_invalidate_lock;
+
struct intel_gt_timelines {
spinlock_t lock; /* protects active_list */
struct list_head active_list;
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 7b6e68f082f8..1386d0f5eac6 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -2519,6 +2519,12 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
#define GAMT_CHKN_DISABLE_DYNAMIC_CREDIT_SHARING (1 << 28)
#define GAMT_CHKN_DISABLE_I2M_CYCLE_ON_WR_PORT (1 << 24)
+#define GEN8_RTCR _MMIO(0x4260)
+#define GEN8_M1TCR _MMIO(0x4264)
+#define GEN8_M2TCR _MMIO(0x4268)
+#define GEN8_BTCR _MMIO(0x426c)
+#define GEN8_VTCR _MMIO(0x4270)
+
#if 0
#define PRB0_TAIL _MMIO(0x2030)
#define PRB0_HEAD _MMIO(0x2034)
@@ -2602,6 +2608,11 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
#define FAULT_VA_HIGH_BITS (0xf << 0)
#define FAULT_GTT_SEL (1 << 4)
+#define GEN12_GFX_TLB_INV_CR _MMIO(0xced8)
+#define GEN12_VD_TLB_INV_CR _MMIO(0xcedc)
+#define GEN12_VE_TLB_INV_CR _MMIO(0xcee0)
+#define GEN12_BLT_TLB_INV_CR _MMIO(0xcee4)
+
#define FPGA_DBG _MMIO(0x42300)
#define FPGA_DBG_RM_NOCLAIM (1 << 31)
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index e0e677b2a3a9..c24f49ee10d7 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -341,6 +341,10 @@ int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
return ret;
vma->flags |= bind_flags;
+
+ if (vma->obj)
+ set_bit(I915_BO_WAS_BOUND_BIT, &vma->obj->flags);
+
return 0;
}
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index 5eb73ded8e07..765f7a62870d 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -1002,15 +1002,14 @@ extern int vmw_execbuf_fence_commands(struct drm_file *file_priv,
struct vmw_private *dev_priv,
struct vmw_fence_obj **p_fence,
uint32_t *p_handle);
-extern void vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
+extern int vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
struct vmw_fpriv *vmw_fp,
int ret,
struct drm_vmw_fence_rep __user
*user_fence_rep,
struct vmw_fence_obj *fence,
uint32_t fence_handle,
- int32_t out_fence_fd,
- struct sync_file *sync_file);
+ int32_t out_fence_fd);
bool vmw_cmd_describe(const void *buf, u32 *size, char const **cmd);
/**
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
index ff86d49dc5e8..e3d20048075b 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
@@ -3413,17 +3413,17 @@ int vmw_execbuf_fence_commands(struct drm_file *file_priv,
* Also if copying fails, user-space will be unable to signal the fence object
* so we wait for it immediately, and then unreference the user-space reference.
*/
-void
+int
vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
struct vmw_fpriv *vmw_fp, int ret,
struct drm_vmw_fence_rep __user *user_fence_rep,
struct vmw_fence_obj *fence, uint32_t fence_handle,
- int32_t out_fence_fd, struct sync_file *sync_file)
+ int32_t out_fence_fd)
{
struct drm_vmw_fence_rep fence_rep;
if (user_fence_rep == NULL)
- return;
+ return 0;
memset(&fence_rep, 0, sizeof(fence_rep));
@@ -3451,20 +3451,14 @@ vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
* handle.
*/
if (unlikely(ret != 0) && (fence_rep.error == 0)) {
- if (sync_file)
- fput(sync_file->file);
-
- if (fence_rep.fd != -1) {
- put_unused_fd(fence_rep.fd);
- fence_rep.fd = -1;
- }
-
ttm_ref_object_base_unref(vmw_fp->tfile, fence_handle,
TTM_REF_USAGE);
VMW_DEBUG_USER("Fence copy error. Syncing.\n");
(void) vmw_fence_obj_wait(fence, false, false,
VMW_FENCE_WAIT_TIMEOUT);
}
+
+ return ret ? -EFAULT : 0;
}
/**
@@ -3806,16 +3800,23 @@ int vmw_execbuf_process(struct drm_file *file_priv,
(void) vmw_fence_obj_wait(fence, false, false,
VMW_FENCE_WAIT_TIMEOUT);
+ }
+ }
+
+ ret = vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv), ret,
+ user_fence_rep, fence, handle, out_fence_fd);
+
+ if (sync_file) {
+ if (ret) {
+ /* usercopy of fence failed, put the file object */
+ fput(sync_file->file);
+ put_unused_fd(out_fence_fd);
} else {
/* Link the fence with the FD created earlier */
fd_install(out_fence_fd, sync_file->file);
}
}
- vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv), ret,
- user_fence_rep, fence, handle, out_fence_fd,
- sync_file);
-
/* Don't unreference when handing fence out */
if (unlikely(out_fence != NULL)) {
*out_fence = fence;
@@ -3833,7 +3834,7 @@ int vmw_execbuf_process(struct drm_file *file_priv,
*/
vmw_validation_unref_lists(&val_ctx);
- return 0;
+ return ret;
out_unlock_binding:
mutex_unlock(&dev_priv->binding_mutex);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
index 178a6cd1a06f..874093a0b04f 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
@@ -1171,7 +1171,7 @@ int vmw_fence_event_ioctl(struct drm_device *dev, void *data,
}
vmw_execbuf_copy_fence_user(dev_priv, vmw_fp, 0, user_fence_rep, fence,
- handle, -1, NULL);
+ handle, -1);
vmw_fence_obj_unreference(&fence);
return 0;
out_no_create:
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 33b151988747..0b800c354049 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -2570,7 +2570,7 @@ void vmw_kms_helper_validation_finish(struct vmw_private *dev_priv,
if (file_priv)
vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv),
ret, user_fence_rep, fence,
- handle, -1, NULL);
+ handle, -1);
if (out_fence)
*out_fence = fence;
else
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 2c01e2ebef7a..d97c19ef7583 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -218,8 +218,7 @@ static struct esdhc_soc_data usdhc_imx7ulp_data = {
static struct esdhc_soc_data usdhc_imx8qxp_data = {
.flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING
| ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200
- | ESDHC_FLAG_HS400 | ESDHC_FLAG_HS400_ES
- | ESDHC_FLAG_CQHCI,
+ | ESDHC_FLAG_HS400 | ESDHC_FLAG_HS400_ES,
};
struct pltfm_imx_data {
diff --git a/drivers/pinctrl/bcm/pinctrl-bcm2835.c b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
index 0de1a3a96984..fa742535f679 100644
--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
+++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
@@ -19,6 +19,7 @@
#include <linux/irq.h>
#include <linux/irqdesc.h>
#include <linux/init.h>
+#include <linux/interrupt.h>
#include <linux/of_address.h>
#include <linux/of.h>
#include <linux/of_irq.h>
@@ -37,12 +38,10 @@
#define MODULE_NAME "pinctrl-bcm2835"
#define BCM2835_NUM_GPIOS 54
+#define BCM2711_NUM_GPIOS 58
#define BCM2835_NUM_BANKS 2
#define BCM2835_NUM_IRQS 3
-#define BCM2835_PIN_BITMAP_SZ \
- DIV_ROUND_UP(BCM2835_NUM_GPIOS, sizeof(unsigned long) * 8)
-
/* GPIO register offsets */
#define GPFSEL0 0x0 /* Function Select */
#define GPSET0 0x1c /* Pin Output Set */
@@ -78,13 +77,15 @@
struct bcm2835_pinctrl {
struct device *dev;
void __iomem *base;
+ int *wake_irq;
/* note: locking assumes each bank will have its own unsigned long */
unsigned long enabled_irq_map[BCM2835_NUM_BANKS];
- unsigned int irq_type[BCM2835_NUM_GPIOS];
+ unsigned int irq_type[BCM2711_NUM_GPIOS];
struct pinctrl_dev *pctl_dev;
struct gpio_chip gpio_chip;
+ struct pinctrl_desc pctl_desc;
struct pinctrl_gpio_range gpio_range;
raw_spinlock_t irq_lock[BCM2835_NUM_BANKS];
@@ -147,6 +148,10 @@ static struct pinctrl_pin_desc bcm2835_gpio_pins[] = {
BCM2835_GPIO_PIN(51),
BCM2835_GPIO_PIN(52),
BCM2835_GPIO_PIN(53),
+ BCM2835_GPIO_PIN(54),
+ BCM2835_GPIO_PIN(55),
+ BCM2835_GPIO_PIN(56),
+ BCM2835_GPIO_PIN(57),
};
/* one pin per group */
@@ -205,6 +210,10 @@ static const char * const bcm2835_gpio_groups[] = {
"gpio51",
"gpio52",
"gpio53",
+ "gpio54",
+ "gpio55",
+ "gpio56",
+ "gpio57",
};
enum bcm2835_fsel {
@@ -355,6 +364,22 @@ static const struct gpio_chip bcm2835_gpio_chip = {
.can_sleep = false,
};
+static const struct gpio_chip bcm2711_gpio_chip = {
+ .label = "pinctrl-bcm2711",
+ .owner = THIS_MODULE,
+ .request = gpiochip_generic_request,
+ .free = gpiochip_generic_free,
+ .direction_input = bcm2835_gpio_direction_input,
+ .direction_output = bcm2835_gpio_direction_output,
+ .get_direction = bcm2835_gpio_get_direction,
+ .get = bcm2835_gpio_get,
+ .set = bcm2835_gpio_set,
+ .set_config = gpiochip_generic_config,
+ .base = -1,
+ .ngpio = BCM2711_NUM_GPIOS,
+ .can_sleep = false,
+};
+
static void bcm2835_gpio_irq_handle_bank(struct bcm2835_pinctrl *pc,
unsigned int bank, u32 mask)
{
@@ -401,7 +426,7 @@ static void bcm2835_gpio_irq_handler(struct irq_desc *desc)
bcm2835_gpio_irq_handle_bank(pc, 0, 0xf0000000);
bcm2835_gpio_irq_handle_bank(pc, 1, 0x00003fff);
break;
- case 2: /* IRQ2 covers GPIOs 46-53 */
+ case 2: /* IRQ2 covers GPIOs 46-57 */
bcm2835_gpio_irq_handle_bank(pc, 1, 0x003fc000);
break;
}
@@ -409,6 +434,11 @@ static void bcm2835_gpio_irq_handler(struct irq_desc *desc)
chained_irq_exit(host_chip, desc);
}
+static irqreturn_t bcm2835_gpio_wake_irq_handler(int irq, void *dev_id)
+{
+ return IRQ_HANDLED;
+}
+
static inline void __bcm2835_gpio_irq_config(struct bcm2835_pinctrl *pc,
unsigned reg, unsigned offset, bool enable)
{
@@ -608,6 +638,34 @@ static void bcm2835_gpio_irq_ack(struct irq_data *data)
bcm2835_gpio_set_bit(pc, GPEDS0, gpio);
}
+static int bcm2835_gpio_irq_set_wake(struct irq_data *data, unsigned int on)
+{
+ struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
+ struct bcm2835_pinctrl *pc = gpiochip_get_data(chip);
+ unsigned gpio = irqd_to_hwirq(data);
+ unsigned int irqgroup;
+ int ret = -EINVAL;
+
+ if (!pc->wake_irq)
+ return ret;
+
+ if (gpio <= 27)
+ irqgroup = 0;
+ else if (gpio >= 28 && gpio <= 45)
+ irqgroup = 1;
+ else if (gpio >= 46 && gpio <= 57)
+ irqgroup = 2;
+ else
+ return ret;
+
+ if (on)
+ ret = enable_irq_wake(pc->wake_irq[irqgroup]);
+ else
+ ret = disable_irq_wake(pc->wake_irq[irqgroup]);
+
+ return ret;
+}
+
static struct irq_chip bcm2835_gpio_irq_chip = {
.name = MODULE_NAME,
.irq_enable = bcm2835_gpio_irq_enable,
@@ -616,11 +674,13 @@ static struct irq_chip bcm2835_gpio_irq_chip = {
.irq_ack = bcm2835_gpio_irq_ack,
.irq_mask = bcm2835_gpio_irq_disable,
.irq_unmask = bcm2835_gpio_irq_enable,
+ .irq_set_wake = bcm2835_gpio_irq_set_wake,
+ .flags = IRQCHIP_MASK_ON_SUSPEND,
};
static int bcm2835_pctl_get_groups_count(struct pinctrl_dev *pctldev)
{
- return ARRAY_SIZE(bcm2835_gpio_groups);
+ return BCM2835_NUM_GPIOS;
}
static const char *bcm2835_pctl_get_group_name(struct pinctrl_dev *pctldev,
@@ -778,7 +838,7 @@ static int bcm2835_pctl_dt_node_to_map(struct pinctrl_dev *pctldev,
err = of_property_read_u32_index(np, "brcm,pins", i, &pin);
if (err)
goto out;
- if (pin >= ARRAY_SIZE(bcm2835_gpio_pins)) {
+ if (pin >= pc->pctl_desc.npins) {
dev_err(pc->dev, "%pOF: invalid brcm,pins value %d\n",
np, pin);
err = -EINVAL;
@@ -854,7 +914,7 @@ static int bcm2835_pmx_get_function_groups(struct pinctrl_dev *pctldev,
{
/* every pin can do every function */
*groups = bcm2835_gpio_groups;
- *num_groups = ARRAY_SIZE(bcm2835_gpio_groups);
+ *num_groups = BCM2835_NUM_GPIOS;
return 0;
}
@@ -1054,29 +1114,66 @@ static const struct pinconf_ops bcm2711_pinconf_ops = {
.pin_config_set = bcm2711_pinconf_set,
};
-static struct pinctrl_desc bcm2835_pinctrl_desc = {
+static const struct pinctrl_desc bcm2835_pinctrl_desc = {
.name = MODULE_NAME,
.pins = bcm2835_gpio_pins,
- .npins = ARRAY_SIZE(bcm2835_gpio_pins),
+ .npins = BCM2835_NUM_GPIOS,
.pctlops = &bcm2835_pctl_ops,
.pmxops = &bcm2835_pmx_ops,
.confops = &bcm2835_pinconf_ops,
.owner = THIS_MODULE,
};
-static struct pinctrl_gpio_range bcm2835_pinctrl_gpio_range = {
+static const struct pinctrl_desc bcm2711_pinctrl_desc = {
+ .name = "pinctrl-bcm2711",
+ .pins = bcm2835_gpio_pins,
+ .npins = BCM2711_NUM_GPIOS,
+ .pctlops = &bcm2835_pctl_ops,
+ .pmxops = &bcm2835_pmx_ops,
+ .confops = &bcm2711_pinconf_ops,
+ .owner = THIS_MODULE,
+};
+
+static const struct pinctrl_gpio_range bcm2835_pinctrl_gpio_range = {
.name = MODULE_NAME,
.npins = BCM2835_NUM_GPIOS,
};
+static const struct pinctrl_gpio_range bcm2711_pinctrl_gpio_range = {
+ .name = "pinctrl-bcm2711",
+ .npins = BCM2711_NUM_GPIOS,
+};
+
+struct bcm_plat_data {
+ const struct gpio_chip *gpio_chip;
+ const struct pinctrl_desc *pctl_desc;
+ const struct pinctrl_gpio_range *gpio_range;
+};
+
+static const struct bcm_plat_data bcm2835_plat_data = {
+ .gpio_chip = &bcm2835_gpio_chip,
+ .pctl_desc = &bcm2835_pinctrl_desc,
+ .gpio_range = &bcm2835_pinctrl_gpio_range,
+};
+
+static const struct bcm_plat_data bcm2711_plat_data = {
+ .gpio_chip = &bcm2711_gpio_chip,
+ .pctl_desc = &bcm2711_pinctrl_desc,
+ .gpio_range = &bcm2711_pinctrl_gpio_range,
+};
+
static const struct of_device_id bcm2835_pinctrl_match[] = {
{
.compatible = "brcm,bcm2835-gpio",
- .data = &bcm2835_pinconf_ops,
+ .data = &bcm2835_plat_data,
},
{
.compatible = "brcm,bcm2711-gpio",
- .data = &bcm2711_pinconf_ops,
+ .data = &bcm2711_plat_data,
+ },
+ {
+ .compatible = "brcm,bcm7211-gpio",
+ .data = &bcm2711_plat_data,
},
{}
};
@@ -1085,14 +1182,16 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
+ const struct bcm_plat_data *pdata;
struct bcm2835_pinctrl *pc;
struct gpio_irq_chip *girq;
struct resource iomem;
int err, i;
const struct of_device_id *match;
+ int is_7211 = 0;
- BUILD_BUG_ON(ARRAY_SIZE(bcm2835_gpio_pins) != BCM2835_NUM_GPIOS);
- BUILD_BUG_ON(ARRAY_SIZE(bcm2835_gpio_groups) != BCM2835_NUM_GPIOS);
+ BUILD_BUG_ON(ARRAY_SIZE(bcm2835_gpio_pins) != BCM2711_NUM_GPIOS);
+ BUILD_BUG_ON(ARRAY_SIZE(bcm2835_gpio_groups) != BCM2711_NUM_GPIOS);
pc = devm_kzalloc(dev, sizeof(*pc), GFP_KERNEL);
if (!pc)
@@ -1111,7 +1210,14 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
if (IS_ERR(pc->base))
return PTR_ERR(pc->base);
- pc->gpio_chip = bcm2835_gpio_chip;
+ match = of_match_node(bcm2835_pinctrl_match, pdev->dev.of_node);
+ if (!match)
+ return -EINVAL;
+
+ pdata = match->data;
+ is_7211 = of_device_is_compatible(np, "brcm,bcm7211-gpio");
+
+ pc->gpio_chip = *pdata->gpio_chip;
pc->gpio_chip.parent = dev;
pc->gpio_chip.of_node = np;
@@ -1135,6 +1241,18 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
raw_spin_lock_init(&pc->irq_lock[i]);
}
+ pc->pctl_desc = *pdata->pctl_desc;
+ pc->pctl_dev = devm_pinctrl_register(dev, &pc->pctl_desc, pc);
+ if (IS_ERR(pc->pctl_dev)) {
+ gpiochip_remove(&pc->gpio_chip);
+ return PTR_ERR(pc->pctl_dev);
+ }
+
+ pc->gpio_range = *pdata->gpio_range;
+ pc->gpio_range.base = pc->gpio_chip.base;
+ pc->gpio_range.gc = &pc->gpio_chip;
+ pinctrl_add_gpio_range(pc->pctl_dev, &pc->gpio_range);
+
girq = &pc->gpio_chip.irq;
girq->chip = &bcm2835_gpio_irq_chip;
girq->parent_handler = bcm2835_gpio_irq_handler;
@@ -1142,8 +1260,19 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
girq->parents = devm_kcalloc(dev, BCM2835_NUM_IRQS,
sizeof(*girq->parents),
GFP_KERNEL);
- if (!girq->parents)
+ if (!girq->parents) {
+ pinctrl_remove_gpio_range(pc->pctl_dev, &pc->gpio_range);
return -ENOMEM;
+ }
+
+ if (is_7211) {
+ pc->wake_irq = devm_kcalloc(dev, BCM2835_NUM_IRQS,
+ sizeof(*pc->wake_irq),
+ GFP_KERNEL);
+ if (!pc->wake_irq)
+ return -ENOMEM;
+ }
+
/*
* Use the same handler for all groups: this is necessary
* since we use one gpiochip to cover all lines - the
@@ -1151,34 +1280,44 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
* bank that was firing the IRQ and look up the per-group
* and bank data.
*/
- for (i = 0; i < BCM2835_NUM_IRQS; i++)
+ for (i = 0; i < BCM2835_NUM_IRQS; i++) {
+ int len;
+ char *name;
+
girq->parents[i] = irq_of_parse_and_map(np, i);
+ if (!is_7211)
+ continue;
+
+ /* Skip over the all banks interrupts */
+ pc->wake_irq[i] = irq_of_parse_and_map(np, i +
+ BCM2835_NUM_IRQS + 1);
+
+ len = strlen(dev_name(pc->dev)) + 16;
+ name = devm_kzalloc(pc->dev, len, GFP_KERNEL);
+ if (!name)
+ return -ENOMEM;
+
+ snprintf(name, len, "%s:bank%d", dev_name(pc->dev), i);
+
+ /* These are optional interrupts */
+ err = devm_request_irq(dev, pc->wake_irq[i],
+ bcm2835_gpio_wake_irq_handler,
+ IRQF_SHARED, name, pc);
+ if (err)
+ dev_warn(dev, "unable to request wake IRQ %d\n",
+ pc->wake_irq[i]);
+ }
+
girq->default_type = IRQ_TYPE_NONE;
girq->handler = handle_level_irq;
err = gpiochip_add_data(&pc->gpio_chip, pc);
if (err) {
dev_err(dev, "could not add GPIO chip\n");
+ pinctrl_remove_gpio_range(pc->pctl_dev, &pc->gpio_range);
return err;
}
- match = of_match_node(bcm2835_pinctrl_match, pdev->dev.of_node);
- if (match) {
- bcm2835_pinctrl_desc.confops =
- (const struct pinconf_ops *)match->data;
- }
-
- pc->pctl_dev = devm_pinctrl_register(dev, &bcm2835_pinctrl_desc, pc);
- if (IS_ERR(pc->pctl_dev)) {
- gpiochip_remove(&pc->gpio_chip);
- return PTR_ERR(pc->pctl_dev);
- }
-
- pc->gpio_range = bcm2835_pinctrl_gpio_range;
- pc->gpio_range.base = pc->gpio_chip.base;
- pc->gpio_range.gc = &pc->gpio_chip;
- pinctrl_add_gpio_range(pc->pctl_dev, &pc->gpio_range);
-
return 0;
}
diff --git a/fs/select.c b/fs/select.c
index e51796063cb6..7716d9d5be1e 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -458,9 +458,11 @@ static int max_select_fd(unsigned long n, fd_set_bits *fds)
return max;
}
-#define POLLIN_SET (EPOLLRDNORM | EPOLLRDBAND | EPOLLIN | EPOLLHUP | EPOLLERR)
-#define POLLOUT_SET (EPOLLWRBAND | EPOLLWRNORM | EPOLLOUT | EPOLLERR)
-#define POLLEX_SET (EPOLLPRI)
+#define POLLIN_SET (EPOLLRDNORM | EPOLLRDBAND | EPOLLIN | EPOLLHUP | EPOLLERR |\
+ EPOLLNVAL)
+#define POLLOUT_SET (EPOLLWRBAND | EPOLLWRNORM | EPOLLOUT | EPOLLERR |\
+ EPOLLNVAL)
+#define POLLEX_SET (EPOLLPRI | EPOLLNVAL)
static inline void wait_key_set(poll_table *wait, unsigned long in,
unsigned long out, unsigned long bit,
@@ -527,6 +529,7 @@ static int do_select(int n, fd_set_bits *fds, struct timespec64 *end_time)
break;
if (!(bit & all_bits))
continue;
+ mask = EPOLLNVAL;
f = fdget(i);
if (f.file) {
wait_key_set(wait, in, out, bit,
@@ -534,34 +537,34 @@ static int do_select(int n, fd_set_bits *fds, struct timespec64 *end_time)
mask = vfs_poll(f.file, wait);
fdput(f);
- if ((mask & POLLIN_SET) && (in & bit)) {
- res_in |= bit;
- retval++;
- wait->_qproc = NULL;
- }
- if ((mask & POLLOUT_SET) && (out & bit)) {
- res_out |= bit;
- retval++;
- wait->_qproc = NULL;
- }
- if ((mask & POLLEX_SET) && (ex & bit)) {
- res_ex |= bit;
- retval++;
- wait->_qproc = NULL;
- }
- /* got something, stop busy polling */
- if (retval) {
- can_busy_loop = false;
- busy_flag = 0;
-
- /*
- * only remember a returned
- * POLL_BUSY_LOOP if we asked for it
- */
- } else if (busy_flag & mask)
- can_busy_loop = true;
-
}
+ if ((mask & POLLIN_SET) && (in & bit)) {
+ res_in |= bit;
+ retval++;
+ wait->_qproc = NULL;
+ }
+ if ((mask & POLLOUT_SET) && (out & bit)) {
+ res_out |= bit;
+ retval++;
+ wait->_qproc = NULL;
+ }
+ if ((mask & POLLEX_SET) && (ex & bit)) {
+ res_ex |= bit;
+ retval++;
+ wait->_qproc = NULL;
+ }
+ /* got something, stop busy polling */
+ if (retval) {
+ can_busy_loop = false;
+ busy_flag = 0;
+
+ /*
+ * only remember a returned
+ * POLL_BUSY_LOOP if we asked for it
+ */
+ } else if (busy_flag & mask)
+ can_busy_loop = true;
+
}
if (res_in)
*rinp = res_in;
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 7777c35e0a17..5797cf2909b0 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1358,10 +1358,11 @@ static void __maybe_unused rcu_advance_cbs_nowake(struct rcu_node *rnp,
struct rcu_data *rdp)
{
rcu_lockdep_assert_cblist_protected(rdp);
- if (!rcu_seq_state(rcu_seq_current(&rnp->gp_seq)) ||
- !raw_spin_trylock_rcu_node(rnp))
+ if (!rcu_seq_state(rcu_seq_current(&rnp->gp_seq)) || !raw_spin_trylock_rcu_node(rnp))
return;
- WARN_ON_ONCE(rcu_advance_cbs(rnp, rdp));
+ // The grace period cannot end while we hold the rcu_node lock.
+ if (rcu_seq_state(rcu_seq_current(&rnp->gp_seq)))
+ WARN_ON_ONCE(rcu_advance_cbs(rnp, rdp));
raw_spin_unlock_rcu_node(rnp);
}
Powered by blists - more mailing lists