Re: Linux 4.11.6

From: Greg KH
Date: Sat Jun 17 2017 - 06:19:14 EST

Next message: Greg KH: "Linux 4.11.6"
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In reply to: Greg KH: "Linux 4.11.6"
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diff --git a/Makefile b/Makefile
index 5b3a81d3262e..e46e99cbe5d1 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 4
PATCHLEVEL = 11
-SUBLEVEL = 5
+SUBLEVEL = 6
EXTRAVERSION =
NAME = Fearless Coyote

diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index f3920d684b0e..61d945297449 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -233,12 +233,17 @@ ENTRY(sie64a)
lctlg %c1,%c1,__LC_USER_ASCE # load primary asce
.Lsie_done:
# some program checks are suppressing. C code (e.g. do_protection_exception)
-# will rewind the PSW by the ILC, which is 4 bytes in case of SIE. Other
-# instructions between sie64a and .Lsie_done should not cause program
-# interrupts. So lets use a nop (47 00 00 00) as a landing pad.
+# will rewind the PSW by the ILC, which is often 4 bytes in case of SIE. There
+# are some corner cases (e.g. runtime instrumentation) where ILC is unpredictable.
+# Other instructions between sie64a and .Lsie_done should not cause program
+# interrupts. So lets use 3 nops as a landing pad for all possible rewinds.
# See also .Lcleanup_sie
-.Lrewind_pad:
- nop 0
+.Lrewind_pad6:
+ nopr 7
+.Lrewind_pad4:
+ nopr 7
+.Lrewind_pad2:
+ nopr 7
.globl sie_exit
sie_exit:
lg %r14,__SF_EMPTY+8(%r15) # load guest register save area
@@ -251,7 +256,9 @@ sie_exit:
stg %r14,__SF_EMPTY+16(%r15) # set exit reason code
j sie_exit

- EX_TABLE(.Lrewind_pad,.Lsie_fault)
+ EX_TABLE(.Lrewind_pad6,.Lsie_fault)
+ EX_TABLE(.Lrewind_pad4,.Lsie_fault)
+ EX_TABLE(.Lrewind_pad2,.Lsie_fault)
EX_TABLE(sie_exit,.Lsie_fault)
EXPORT_SYMBOL(sie64a)
EXPORT_SYMBOL(sie_exit)
diff --git a/arch/x86/platform/efi/efi-bgrt.c b/arch/x86/platform/efi/efi-bgrt.c
index 8bf27323f7a3..b58233e4ed71 100644
--- a/arch/x86/platform/efi/efi-bgrt.c
+++ b/arch/x86/platform/efi/efi-bgrt.c
@@ -27,6 +27,26 @@ struct bmp_header {
u32 size;
} __packed;

+static bool efi_bgrt_addr_valid(u64 addr)
+{
+ efi_memory_desc_t *md;
+
+ for_each_efi_memory_desc(md) {
+ u64 size;
+ u64 end;
+
+ if (md->type != EFI_BOOT_SERVICES_DATA)
+ continue;
+
+ size = md->num_pages << EFI_PAGE_SHIFT;
+ end = md->phys_addr + size;
+ if (addr >= md->phys_addr && addr < end)
+ return true;
+ }
+
+ return false;
+}
+
void __init efi_bgrt_init(struct acpi_table_header *table)
{
void *image;
@@ -36,7 +56,7 @@ void __init efi_bgrt_init(struct acpi_table_header *table)
if (acpi_disabled)
return;

- if (!efi_enabled(EFI_BOOT))
+ if (!efi_enabled(EFI_MEMMAP))
return;

if (table->length < sizeof(bgrt_tab)) {
@@ -65,6 +85,10 @@ void __init efi_bgrt_init(struct acpi_table_header *table)
goto out;
}

+ if (!efi_bgrt_addr_valid(bgrt->image_address)) {
+ pr_notice("Ignoring BGRT: invalid image address\n");
+ goto out;
+ }
image = early_memremap(bgrt->image_address, sizeof(bmp_header));
if (!image) {
pr_notice("Ignoring BGRT: failed to map image header memory\n");
diff --git a/arch/xtensa/include/asm/irq.h b/arch/xtensa/include/asm/irq.h
index f71f88ea7646..19707db966f1 100644
--- a/arch/xtensa/include/asm/irq.h
+++ b/arch/xtensa/include/asm/irq.h
@@ -29,7 +29,8 @@ static inline void variant_irq_disable(unsigned int irq) { }
# define PLATFORM_NR_IRQS 0
#endif
#define XTENSA_NR_IRQS XCHAL_NUM_INTERRUPTS
-#define NR_IRQS (XTENSA_NR_IRQS + VARIANT_NR_IRQS + PLATFORM_NR_IRQS)
+#define NR_IRQS (XTENSA_NR_IRQS + VARIANT_NR_IRQS + PLATFORM_NR_IRQS + 1)
+#define XTENSA_PIC_LINUX_IRQ(hwirq) ((hwirq) + 1)

#if VARIANT_NR_IRQS == 0
static inline void variant_init_irq(void) { }
diff --git a/arch/xtensa/kernel/irq.c b/arch/xtensa/kernel/irq.c
index a265edd6ac37..99341028cc77 100644
--- a/arch/xtensa/kernel/irq.c
+++ b/arch/xtensa/kernel/irq.c
@@ -34,11 +34,6 @@ asmlinkage void do_IRQ(int hwirq, struct pt_regs *regs)
{
int irq = irq_find_mapping(NULL, hwirq);

- if (hwirq >= NR_IRQS) {
- printk(KERN_EMERG "%s: cannot handle IRQ %d\n",
- __func__, hwirq);
- }
-
#ifdef CONFIG_DEBUG_STACKOVERFLOW
/* Debugging check for stack overflow: is there less than 1KB free? */
{
diff --git a/arch/xtensa/platforms/xtfpga/include/platform/hardware.h b/arch/xtensa/platforms/xtfpga/include/platform/hardware.h
index dbeea2b440a1..1fda7e20dfcb 100644
--- a/arch/xtensa/platforms/xtfpga/include/platform/hardware.h
+++ b/arch/xtensa/platforms/xtfpga/include/platform/hardware.h
@@ -24,16 +24,18 @@

/* Interrupt configuration. */

-#define PLATFORM_NR_IRQS 10
+#define PLATFORM_NR_IRQS 0

/* Default assignment of LX60 devices to external interrupts. */

#ifdef CONFIG_XTENSA_MX
#define DUART16552_INTNUM XCHAL_EXTINT3_NUM
#define OETH_IRQ XCHAL_EXTINT4_NUM
+#define C67X00_IRQ XCHAL_EXTINT8_NUM
#else
#define DUART16552_INTNUM XCHAL_EXTINT0_NUM
#define OETH_IRQ XCHAL_EXTINT1_NUM
+#define C67X00_IRQ XCHAL_EXTINT5_NUM
#endif

/*
@@ -63,5 +65,5 @@

#define C67X00_PADDR (XCHAL_KIO_PADDR + 0x0D0D0000)
#define C67X00_SIZE 0x10
-#define C67X00_IRQ 5
+
#endif /* __XTENSA_XTAVNET_HARDWARE_H */
diff --git a/arch/xtensa/platforms/xtfpga/setup.c b/arch/xtensa/platforms/xtfpga/setup.c
index 779be723eb2b..42285f35d313 100644
--- a/arch/xtensa/platforms/xtfpga/setup.c
+++ b/arch/xtensa/platforms/xtfpga/setup.c
@@ -175,8 +175,8 @@ static struct resource ethoc_res[] = {
.flags = IORESOURCE_MEM,
},
[2] = { /* IRQ number */
- .start = OETH_IRQ,
- .end = OETH_IRQ,
+ .start = XTENSA_PIC_LINUX_IRQ(OETH_IRQ),
+ .end = XTENSA_PIC_LINUX_IRQ(OETH_IRQ),
.flags = IORESOURCE_IRQ,
},
};
@@ -213,8 +213,8 @@ static struct resource c67x00_res[] = {
.flags = IORESOURCE_MEM,
},
[1] = { /* IRQ number */
- .start = C67X00_IRQ,
- .end = C67X00_IRQ,
+ .start = XTENSA_PIC_LINUX_IRQ(C67X00_IRQ),
+ .end = XTENSA_PIC_LINUX_IRQ(C67X00_IRQ),
.flags = IORESOURCE_IRQ,
},
};
@@ -247,7 +247,7 @@ static struct resource serial_resource = {
static struct plat_serial8250_port serial_platform_data[] = {
[0] = {
.mapbase = DUART16552_PADDR,
- .irq = DUART16552_INTNUM,
+ .irq = XTENSA_PIC_LINUX_IRQ(DUART16552_INTNUM),
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
UPF_IOREMAP,
.iotype = XCHAL_HAVE_BE ? UPIO_MEM32BE : UPIO_MEM32,
diff --git a/block/partitions/msdos.c b/block/partitions/msdos.c
index 93e7c1b32edd..5610cd537da7 100644
--- a/block/partitions/msdos.c
+++ b/block/partitions/msdos.c
@@ -300,6 +300,8 @@ static void parse_bsd(struct parsed_partitions *state,
continue;
bsd_start = le32_to_cpu(p->p_offset);
bsd_size = le32_to_cpu(p->p_size);
+ if (memcmp(flavour, "bsd\0", 4) == 0)
+ bsd_start += offset;
if (offset == bsd_start && size == bsd_size)
/* full parent partition, we have it already */
continue;
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 66dbb3c4c6d8..edacd31ae1a1 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1206,6 +1206,15 @@ int i915_driver_load(struct pci_dev *pdev, const struct pci_device_id *ent)
goto out_free_priv;

pci_set_drvdata(pdev, &dev_priv->drm);
+ /*
+ * Disable the system suspend direct complete optimization, which can
+ * leave the device suspended skipping the driver's suspend handlers
+ * if the device was already runtime suspended. This is needed due to
+ * the difference in our runtime and system suspend sequence and
+ * becaue the HDA driver may require us to enable the audio power
+ * domain during system suspend.
+ */
+ pdev->dev_flags |= PCI_DEV_FLAGS_NEEDS_RESUME;

ret = i915_driver_init_early(dev_priv, ent);
if (ret < 0)
@@ -1243,10 +1252,6 @@ int i915_driver_load(struct pci_dev *pdev, const struct pci_device_id *ent)

dev_priv->ipc_enabled = false;

- /* Everything is in place, we can now relax! */
- DRM_INFO("Initialized %s %d.%d.%d %s for %s on minor %d\n",
- driver.name, driver.major, driver.minor, driver.patchlevel,
- driver.date, pci_name(pdev), dev_priv->drm.primary->index);
if (IS_ENABLED(CONFIG_DRM_I915_DEBUG))
DRM_INFO("DRM_I915_DEBUG enabled\n");
if (IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM))
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 96e45a4d5441..6eb83684b97b 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -755,10 +755,6 @@ static bool gen8_ppgtt_clear_pt(struct i915_address_space *vm,
GEM_BUG_ON(pte_end > GEN8_PTES);

bitmap_clear(pt->used_ptes, pte, num_entries);
- if (USES_FULL_PPGTT(vm->i915)) {
- if (bitmap_empty(pt->used_ptes, GEN8_PTES))
- return true;
- }

pt_vaddr = kmap_px(pt);

@@ -798,9 +794,6 @@ static bool gen8_ppgtt_clear_pd(struct i915_address_space *vm,
}
}

- if (bitmap_empty(pd->used_pdes, I915_PDES))
- return true;
-
return false;
}

@@ -829,9 +822,6 @@ static bool gen8_ppgtt_clear_pdp(struct i915_address_space *vm,

mark_tlbs_dirty(ppgtt);

- if (bitmap_empty(pdp->used_pdpes, I915_PDPES_PER_PDP(dev_priv)))
- return true;
-
return false;
}

@@ -3292,7 +3282,8 @@ void i915_ggtt_enable_guc(struct drm_i915_private *i915)

void i915_ggtt_disable_guc(struct drm_i915_private *i915)
{
- i915->ggtt.invalidate = gen6_ggtt_invalidate;
+ if (i915->ggtt.invalidate == guc_ggtt_invalidate)
+ i915->ggtt.invalidate = gen6_ggtt_invalidate;
}

void i915_gem_restore_gtt_mappings(struct drm_i915_private *dev_priv)
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 9bbbd4e83e3c..9bfe9520e7a8 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -389,7 +389,6 @@ static const struct intel_device_info intel_skylake_gt3_info = {
.has_hw_contexts = 1, \
.has_logical_ring_contexts = 1, \
.has_guc = 1, \
- .has_decoupled_mmio = 1, \
.has_aliasing_ppgtt = 1, \
.has_full_ppgtt = 1, \
.has_full_48bit_ppgtt = 1, \
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index ed1f4f272b4f..5370dbec7a7d 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13808,6 +13808,15 @@ static void update_scanline_offset(struct intel_crtc *crtc)
* type. For DP ports it behaves like most other platforms, but on HDMI
* there's an extra 1 line difference. So we need to add two instead of
* one to the value.
+ *
+ * On VLV/CHV DSI the scanline counter would appear to increment
+ * approx. 1/3 of a scanline before start of vblank. Unfortunately
+ * that means we can't tell whether we're in vblank or not while
+ * we're on that particular line. We must still set scanline_offset
+ * to 1 so that the vblank timestamps come out correct when we query
+ * the scanline counter from within the vblank interrupt handler.
+ * However if queried just before the start of vblank we'll get an
+ * answer that's slightly in the future.
*/
if (IS_GEN2(dev_priv)) {
const struct drm_display_mode *adjusted_mode = &crtc->config->base.adjusted_mode;
diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
index 89fe5c8464df..96414399bed7 100644
--- a/drivers/gpu/drm/i915/intel_fbc.c
+++ b/drivers/gpu/drm/i915/intel_fbc.c
@@ -82,20 +82,10 @@ static unsigned int get_crtc_fence_y_offset(struct intel_crtc *crtc)
static void intel_fbc_get_plane_source_size(struct intel_fbc_state_cache *cache,
int *width, int *height)
{
- int w, h;
-
- if (drm_rotation_90_or_270(cache->plane.rotation)) {
- w = cache->plane.src_h;
- h = cache->plane.src_w;
- } else {
- w = cache->plane.src_w;
- h = cache->plane.src_h;
- }
-
if (width)
- *width = w;
+ *width = cache->plane.src_w;
if (height)
- *height = h;
+ *height = cache->plane.src_h;
}

static int intel_fbc_calculate_cfb_size(struct drm_i915_private *dev_priv,
@@ -747,6 +737,11 @@ static void intel_fbc_update_state_cache(struct intel_crtc *crtc,
ilk_pipe_pixel_rate(crtc_state);

cache->plane.rotation = plane_state->base.rotation;
+ /*
+ * Src coordinates are already rotated by 270 degrees for
+ * the 90/270 degree plane rotation cases (to match the
+ * GTT mapping), hence no need to account for rotation here.
+ */
cache->plane.src_w = drm_rect_width(&plane_state->base.src) >> 16;
cache->plane.src_h = drm_rect_height(&plane_state->base.src) >> 16;
cache->plane.visible = plane_state->base.visible;
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 6a29784d2b41..5132e0cdc684 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4140,11 +4140,19 @@ skl_compute_wm(struct drm_atomic_state *state)
struct drm_crtc_state *cstate;
struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
struct skl_wm_values *results = &intel_state->wm_results;
+ struct drm_device *dev = state->dev;
struct skl_pipe_wm *pipe_wm;
bool changed = false;
int ret, i;

/*
+ * When we distrust bios wm we always need to recompute to set the
+ * expected DDB allocations for each CRTC.
+ */
+ if (to_i915(dev)->wm.distrust_bios_wm)
+ changed = true;
+
+ /*
* If this transaction isn't actually touching any CRTC's, don't
* bother with watermark calculation. Note that if we pass this
* test, we're guaranteed to hold at least one CRTC state mutex,
@@ -4154,6 +4162,7 @@ skl_compute_wm(struct drm_atomic_state *state)
*/
for_each_crtc_in_state(state, crtc, cstate, i)
changed = true;
+
if (!changed)
return 0;

diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 9481ca9a3ae7..59d792b127b9 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -81,10 +81,13 @@ int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode,
*/
void intel_pipe_update_start(struct intel_crtc *crtc)
{
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
const struct drm_display_mode *adjusted_mode = &crtc->config->base.adjusted_mode;
long timeout = msecs_to_jiffies_timeout(1);
int scanline, min, max, vblank_start;
wait_queue_head_t *wq = drm_crtc_vblank_waitqueue(&crtc->base);
+ bool need_vlv_dsi_wa = (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) &&
+ intel_crtc_has_type(crtc->config, INTEL_OUTPUT_DSI);
DEFINE_WAIT(wait);

vblank_start = adjusted_mode->crtc_vblank_start;
@@ -136,6 +139,24 @@ void intel_pipe_update_start(struct intel_crtc *crtc)

drm_crtc_vblank_put(&crtc->base);

+ /*
+ * On VLV/CHV DSI the scanline counter would appear to
+ * increment approx. 1/3 of a scanline before start of vblank.
+ * The registers still get latched at start of vblank however.
+ * This means we must not write any registers on the first
+ * line of vblank (since not the whole line is actually in
+ * vblank). And unfortunately we can't use the interrupt to
+ * wait here since it will fire too soon. We could use the
+ * frame start interrupt instead since it will fire after the
+ * critical scanline, but that would require more changes
+ * in the interrupt code. So for now we'll just do the nasty
+ * thing and poll for the bad scanline to pass us by.
+ *
+ * FIXME figure out if BXT+ DSI suffers from this as well
+ */
+ while (need_vlv_dsi_wa && scanline == vblank_start)
+ scanline = intel_get_crtc_scanline(crtc);
+
crtc->debug.scanline_start = scanline;
crtc->debug.start_vbl_time = ktime_get();
crtc->debug.start_vbl_count = intel_crtc_get_vblank_counter(crtc);
diff --git a/drivers/irqchip/irq-xtensa-mx.c b/drivers/irqchip/irq-xtensa-mx.c
index bb3ac5fe5846..72a391e01011 100644
--- a/drivers/irqchip/irq-xtensa-mx.c
+++ b/drivers/irqchip/irq-xtensa-mx.c
@@ -142,7 +142,7 @@ static struct irq_chip xtensa_mx_irq_chip = {
int __init xtensa_mx_init_legacy(struct device_node *interrupt_parent)
{
struct irq_domain *root_domain =
- irq_domain_add_legacy(NULL, NR_IRQS, 0, 0,
+ irq_domain_add_legacy(NULL, NR_IRQS - 1, 1, 0,
&xtensa_mx_irq_domain_ops,
&xtensa_mx_irq_chip);
irq_set_default_host(root_domain);
diff --git a/drivers/irqchip/irq-xtensa-pic.c b/drivers/irqchip/irq-xtensa-pic.c
index 472ae1770964..f728755fa292 100644
--- a/drivers/irqchip/irq-xtensa-pic.c
+++ b/drivers/irqchip/irq-xtensa-pic.c
@@ -89,7 +89,7 @@ static struct irq_chip xtensa_irq_chip = {
int __init xtensa_pic_init_legacy(struct device_node *interrupt_parent)
{
struct irq_domain *root_domain =
- irq_domain_add_legacy(NULL, NR_IRQS, 0, 0,
+ irq_domain_add_legacy(NULL, NR_IRQS - 1, 1, 0,
&xtensa_irq_domain_ops, &xtensa_irq_chip);
irq_set_default_host(root_domain);
return 0;
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index d35c0162f9f2..0f6f9a97a81c 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -2142,7 +2142,8 @@ bool pci_dev_keep_suspended(struct pci_dev *pci_dev)

if (!pm_runtime_suspended(dev)
|| pci_target_state(pci_dev) != pci_dev->current_state
- || platform_pci_need_resume(pci_dev))
+ || platform_pci_need_resume(pci_dev)
+ || (pci_dev->dev_flags & PCI_DEV_FLAGS_NEEDS_RESUME))
return false;

/*
diff --git a/include/linux/pci.h b/include/linux/pci.h
index eb3da1a04e6c..b2d5580cd9e2 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -178,6 +178,11 @@ enum pci_dev_flags {
PCI_DEV_FLAGS_NO_PM_RESET = (__force pci_dev_flags_t) (1 << 7),
/* Get VPD from function 0 VPD */
PCI_DEV_FLAGS_VPD_REF_F0 = (__force pci_dev_flags_t) (1 << 8),
+ /*
+ * Resume before calling the driver's system suspend hooks, disabling
+ * the direct_complete optimization.
+ */
+ PCI_DEV_FLAGS_NEEDS_RESUME = (__force pci_dev_flags_t) (1 << 11),
};

enum pci_irq_reroute_variant {

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