[Nouveau] [PATCH AUTOSEL 6.0 01/44] drm/nouveau/nouveau_bo: fix potential memory leak in nouveau_bo_alloc()

[Nouveau] [PATCH AUTOSEL 6.0 01/44] drm/nouveau/nouveau_bo: fix potential memory leak in nouveau_bo_alloc()

[Sasha Levin]

From: Jianglei Nie <niejianglei2021@163.com>

[ Upstream commit 6dc548745d5b5102e3c53dc5097296ac270b6c69 ]

nouveau_bo_alloc() allocates a memory chunk for "nvbo" with kzalloc().
When some error occurs, "nvbo" should be released. But when
WARN_ON(pi < 0)) equals true, the function return ERR_PTR without
releasing the "nvbo", which will lead to a memory leak.

We should release the "nvbo" with kfree() if WARN_ON(pi < 0)) equals true.

Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220705094306.2244103-1-niejianglei2021@163.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/nouveau/nouveau_bo.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index e29175e4b44c..07a327ad5e2a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -281,8 +281,10 @@ nouveau_bo_alloc(struct nouveau_cli *cli, u64 *size, int *align, u32 domain,
 			break;
 	}
 
-	if (WARN_ON(pi < 0))
+	if (WARN_ON(pi < 0)) {
+		kfree(nvbo);
 		return ERR_PTR(-EINVAL);
+	}
 
 	/* Disable compression if suitable settings couldn't be found. */
 	if (nvbo->comp && !vmm->page[pi].comp) {
-- 
2.35.1

[PATCH AUTOSEL 6.0 01/44] drm/nouveau/nouveau_bo: fix potential memory leak in nouveau_bo_alloc()

[Sasha Levin]

From: Jianglei Nie <niejianglei2021@163.com>

[ Upstream commit 6dc548745d5b5102e3c53dc5097296ac270b6c69 ]

nouveau_bo_alloc() allocates a memory chunk for "nvbo" with kzalloc().
When some error occurs, "nvbo" should be released. But when
WARN_ON(pi < 0)) equals true, the function return ERR_PTR without
releasing the "nvbo", which will lead to a memory leak.

We should release the "nvbo" with kfree() if WARN_ON(pi < 0)) equals true.

Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220705094306.2244103-1-niejianglei2021@163.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/nouveau/nouveau_bo.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index e29175e4b44c..07a327ad5e2a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -281,8 +281,10 @@ nouveau_bo_alloc(struct nouveau_cli *cli, u64 *size, int *align, u32 domain,
 			break;
 	}
 
-	if (WARN_ON(pi < 0))
+	if (WARN_ON(pi < 0)) {
+		kfree(nvbo);
 		return ERR_PTR(-EINVAL);
+	}
 
 	/* Disable compression if suitable settings couldn't be found. */
 	if (nvbo->comp && !vmm->page[pi].comp) {
-- 
2.35.1

[PATCH AUTOSEL 6.0 01/44] drm/nouveau/nouveau_bo: fix potential memory leak in nouveau_bo_alloc()

[Sasha Levin]

From: Jianglei Nie <niejianglei2021@163.com>

[ Upstream commit 6dc548745d5b5102e3c53dc5097296ac270b6c69 ]

nouveau_bo_alloc() allocates a memory chunk for "nvbo" with kzalloc().
When some error occurs, "nvbo" should be released. But when
WARN_ON(pi < 0)) equals true, the function return ERR_PTR without
releasing the "nvbo", which will lead to a memory leak.

We should release the "nvbo" with kfree() if WARN_ON(pi < 0)) equals true.

Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220705094306.2244103-1-niejianglei2021@163.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/nouveau/nouveau_bo.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index e29175e4b44c..07a327ad5e2a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -281,8 +281,10 @@ nouveau_bo_alloc(struct nouveau_cli *cli, u64 *size, int *align, u32 domain,
 			break;
 	}
 
-	if (WARN_ON(pi < 0))
+	if (WARN_ON(pi < 0)) {
+		kfree(nvbo);
 		return ERR_PTR(-EINVAL);
+	}
 
 	/* Disable compression if suitable settings couldn't be found. */
 	if (nvbo->comp && !vmm->page[pi].comp) {
-- 
2.35.1

[PATCH AUTOSEL 6.0 02/44] drm: Use size_t type for len variable in drm_copy_field()

[Sasha Levin]

From: Javier Martinez Canillas <javierm@redhat.com>

[ Upstream commit 94dc3471d1b2b58b3728558d0e3f264e9ce6ff59 ]

The strlen() function returns a size_t which is an unsigned int on 32-bit
arches and an unsigned long on 64-bit arches. But in the drm_copy_field()
function, the strlen() return value is assigned to an 'int len' variable.

Later, the len variable is passed as copy_from_user() third argument that
is an unsigned long parameter as well.

In theory, this can lead to an integer overflow via type conversion. Since
the assignment happens to a signed int lvalue instead of a size_t lvalue.

In practice though, that's unlikely since the values copied are set by DRM
drivers and not controlled by userspace. But using a size_t for len is the
correct thing to do anyways.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220705100215.572498-2-javierm@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_ioctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index 8faad23dc1d8..e1b9a03e619c 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -472,7 +472,7 @@ EXPORT_SYMBOL(drm_invalid_op);
  */
 static int drm_copy_field(char __user *buf, size_t *buf_len, const char *value)
 {
-	int len;
+	size_t len;
 
 	/* don't overflow userbuf */
 	len = strlen(value);
-- 
2.35.1

[PATCH AUTOSEL 6.0 02/44] drm: Use size_t type for len variable in drm_copy_field()

[Sasha Levin]

From: Javier Martinez Canillas <javierm@redhat.com>

[ Upstream commit 94dc3471d1b2b58b3728558d0e3f264e9ce6ff59 ]

The strlen() function returns a size_t which is an unsigned int on 32-bit
arches and an unsigned long on 64-bit arches. But in the drm_copy_field()
function, the strlen() return value is assigned to an 'int len' variable.

Later, the len variable is passed as copy_from_user() third argument that
is an unsigned long parameter as well.

In theory, this can lead to an integer overflow via type conversion. Since
the assignment happens to a signed int lvalue instead of a size_t lvalue.

In practice though, that's unlikely since the values copied are set by DRM
drivers and not controlled by userspace. But using a size_t for len is the
correct thing to do anyways.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220705100215.572498-2-javierm@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_ioctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index 8faad23dc1d8..e1b9a03e619c 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -472,7 +472,7 @@ EXPORT_SYMBOL(drm_invalid_op);
  */
 static int drm_copy_field(char __user *buf, size_t *buf_len, const char *value)
 {
-	int len;
+	size_t len;
 
 	/* don't overflow userbuf */
 	len = strlen(value);
-- 
2.35.1

[PATCH AUTOSEL 6.0 03/44] drm: Prevent drm_copy_field() to attempt copying a NULL pointer

[Sasha Levin]

From: Javier Martinez Canillas <javierm@redhat.com>

[ Upstream commit f6ee30407e883042482ad4ad30da5eaba47872ee ]

There are some struct drm_driver fields that are required by drivers since
drm_copy_field() attempts to copy them to user-space via DRM_IOCTL_VERSION.

But it can be possible that a driver has a bug and did not set some of the
fields, which leads to drm_copy_field() attempting to copy a NULL pointer:

[ +10.395966] Unable to handle kernel access to user memory outside uaccess routines at virtual address 0000000000000000
[  +0.010955] Mem abort info:
[  +0.002835]   ESR = 0x0000000096000004
[  +0.003872]   EC = 0x25: DABT (current EL), IL = 32 bits
[  +0.005395]   SET = 0, FnV = 0
[  +0.003113]   EA = 0, S1PTW = 0
[  +0.003182]   FSC = 0x04: level 0 translation fault
[  +0.004964] Data abort info:
[  +0.002919]   ISV = 0, ISS = 0x00000004
[  +0.003886]   CM = 0, WnR = 0
[  +0.003040] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000115dad000
[  +0.006536] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000
[  +0.006925] Internal error: Oops: 96000004 [#1] SMP
...
[  +0.011113] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[  +0.007061] pc : __pi_strlen+0x14/0x150
[  +0.003895] lr : drm_copy_field+0x30/0x1a4
[  +0.004156] sp : ffff8000094b3a50
[  +0.003355] x29: ffff8000094b3a50 x28: ffff8000094b3b70 x27: 0000000000000040
[  +0.007242] x26: ffff443743c2ba00 x25: 0000000000000000 x24: 0000000000000040
[  +0.007243] x23: ffff443743c2ba00 x22: ffff8000094b3b70 x21: 0000000000000000
[  +0.007241] x20: 0000000000000000 x19: ffff8000094b3b90 x18: 0000000000000000
[  +0.007241] x17: 0000000000000000 x16: 0000000000000000 x15: 0000aaab14b9af40
[  +0.007241] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000
[  +0.007239] x11: 0000000000000000 x10: 0000000000000000 x9 : ffffa524ad67d4d8
[  +0.007242] x8 : 0101010101010101 x7 : 7f7f7f7f7f7f7f7f x6 : 6c6e6263606e7141
[  +0.007239] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000
[  +0.007241] x2 : 0000000000000000 x1 : ffff8000094b3b90 x0 : 0000000000000000
[  +0.007240] Call trace:
[  +0.002475]  __pi_strlen+0x14/0x150
[  +0.003537]  drm_version+0x84/0xac
[  +0.003448]  drm_ioctl_kernel+0xa8/0x16c
[  +0.003975]  drm_ioctl+0x270/0x580
[  +0.003448]  __arm64_sys_ioctl+0xb8/0xfc
[  +0.003978]  invoke_syscall+0x78/0x100
[  +0.003799]  el0_svc_common.constprop.0+0x4c/0xf4
[  +0.004767]  do_el0_svc+0x38/0x4c
[  +0.003357]  el0_svc+0x34/0x100
[  +0.003185]  el0t_64_sync_handler+0x11c/0x150
[  +0.004418]  el0t_64_sync+0x190/0x194
[  +0.003716] Code: 92402c04 b200c3e8 f13fc09f 5400088c (a9400c02)
[  +0.006180] ---[ end trace 0000000000000000 ]---

Reported-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220705100215.572498-3-javierm@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_ioctl.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index e1b9a03e619c..ca2a6e6101dc 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -474,6 +474,12 @@ static int drm_copy_field(char __user *buf, size_t *buf_len, const char *value)
 {
 	size_t len;
 
+	/* don't attempt to copy a NULL pointer */
+	if (WARN_ONCE(!value, "BUG: the value to copy was not set!")) {
+		*buf_len = 0;
+		return 0;
+	}
+
 	/* don't overflow userbuf */
 	len = strlen(value);
 	if (len > *buf_len)
-- 
2.35.1

[PATCH AUTOSEL 6.0 03/44] drm: Prevent drm_copy_field() to attempt copying a NULL pointer

[Sasha Levin]

From: Javier Martinez Canillas <javierm@redhat.com>

[ Upstream commit f6ee30407e883042482ad4ad30da5eaba47872ee ]

There are some struct drm_driver fields that are required by drivers since
drm_copy_field() attempts to copy them to user-space via DRM_IOCTL_VERSION.

But it can be possible that a driver has a bug and did not set some of the
fields, which leads to drm_copy_field() attempting to copy a NULL pointer:

[ +10.395966] Unable to handle kernel access to user memory outside uaccess routines at virtual address 0000000000000000
[  +0.010955] Mem abort info:
[  +0.002835]   ESR = 0x0000000096000004
[  +0.003872]   EC = 0x25: DABT (current EL), IL = 32 bits
[  +0.005395]   SET = 0, FnV = 0
[  +0.003113]   EA = 0, S1PTW = 0
[  +0.003182]   FSC = 0x04: level 0 translation fault
[  +0.004964] Data abort info:
[  +0.002919]   ISV = 0, ISS = 0x00000004
[  +0.003886]   CM = 0, WnR = 0
[  +0.003040] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000115dad000
[  +0.006536] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000
[  +0.006925] Internal error: Oops: 96000004 [#1] SMP
...
[  +0.011113] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[  +0.007061] pc : __pi_strlen+0x14/0x150
[  +0.003895] lr : drm_copy_field+0x30/0x1a4
[  +0.004156] sp : ffff8000094b3a50
[  +0.003355] x29: ffff8000094b3a50 x28: ffff8000094b3b70 x27: 0000000000000040
[  +0.007242] x26: ffff443743c2ba00 x25: 0000000000000000 x24: 0000000000000040
[  +0.007243] x23: ffff443743c2ba00 x22: ffff8000094b3b70 x21: 0000000000000000
[  +0.007241] x20: 0000000000000000 x19: ffff8000094b3b90 x18: 0000000000000000
[  +0.007241] x17: 0000000000000000 x16: 0000000000000000 x15: 0000aaab14b9af40
[  +0.007241] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000
[  +0.007239] x11: 0000000000000000 x10: 0000000000000000 x9 : ffffa524ad67d4d8
[  +0.007242] x8 : 0101010101010101 x7 : 7f7f7f7f7f7f7f7f x6 : 6c6e6263606e7141
[  +0.007239] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000
[  +0.007241] x2 : 0000000000000000 x1 : ffff8000094b3b90 x0 : 0000000000000000
[  +0.007240] Call trace:
[  +0.002475]  __pi_strlen+0x14/0x150
[  +0.003537]  drm_version+0x84/0xac
[  +0.003448]  drm_ioctl_kernel+0xa8/0x16c
[  +0.003975]  drm_ioctl+0x270/0x580
[  +0.003448]  __arm64_sys_ioctl+0xb8/0xfc
[  +0.003978]  invoke_syscall+0x78/0x100
[  +0.003799]  el0_svc_common.constprop.0+0x4c/0xf4
[  +0.004767]  do_el0_svc+0x38/0x4c
[  +0.003357]  el0_svc+0x34/0x100
[  +0.003185]  el0t_64_sync_handler+0x11c/0x150
[  +0.004418]  el0t_64_sync+0x190/0x194
[  +0.003716] Code: 92402c04 b200c3e8 f13fc09f 5400088c (a9400c02)
[  +0.006180] ---[ end trace 0000000000000000 ]---

Reported-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220705100215.572498-3-javierm@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_ioctl.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index e1b9a03e619c..ca2a6e6101dc 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -474,6 +474,12 @@ static int drm_copy_field(char __user *buf, size_t *buf_len, const char *value)
 {
 	size_t len;
 
+	/* don't attempt to copy a NULL pointer */
+	if (WARN_ONCE(!value, "BUG: the value to copy was not set!")) {
+		*buf_len = 0;
+		return 0;
+	}
+
 	/* don't overflow userbuf */
 	len = strlen(value);
 	if (len > *buf_len)
-- 
2.35.1

[PATCH AUTOSEL 6.0 04/44] drm/komeda: Fix handling of atomic commits in the atomic_commit_tail hook

[Sasha Levin]

From: Liviu Dudau <liviu.dudau@arm.com>

[ Upstream commit eaa225b6b52233d45457fd33730e1528c604d92d ]

Komeda driver relies on the generic DRM atomic helper functions to handle
commits. It only implements an atomic_commit_tail hook for the
mode_config_helper_funcs and even that one is pretty close to the generic
implementation with the exception of additional dma_fence signalling.

What the generic helper framework doesn't do is waiting for the actual
hardware to signal that the commit parameters have been written into the
appropriate registers. As we signal CRTC events only on the irq handlers,
we need to flush the configuration and wait for the hardware to respond.

Add the Komeda specific implementation for atomic_commit_hw_done() that
flushes and waits for flip done before calling drm_atomic_helper_commit_hw_done().

The fix was prompted by a patch from Carsten Haitzler where he was trying to
solve the same issue but in a different way that I think can lead to wrong
event signaling to userspace.

Reported-by: Carsten Haitzler <carsten.haitzler@arm.com>
Tested-by: Carsten Haitzler <carsten.haitzler@arm.com>
Reviewed-by: Carsten Haitzler <carsten.haitzler@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220722122139.288486-1-liviu.dudau@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../gpu/drm/arm/display/komeda/komeda_crtc.c  |  4 ++--
 .../gpu/drm/arm/display/komeda/komeda_kms.c   | 21 ++++++++++++++++++-
 .../gpu/drm/arm/display/komeda/komeda_kms.h   |  2 ++
 3 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
index 59172acb9738..292f533d8cf0 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
@@ -235,7 +235,7 @@ void komeda_crtc_handle_event(struct komeda_crtc   *kcrtc,
 			crtc->state->event = NULL;
 			drm_crtc_send_vblank_event(crtc, event);
 		} else {
-			DRM_WARN("CRTC[%d]: FLIP happen but no pending commit.\n",
+			DRM_WARN("CRTC[%d]: FLIP happened but no pending commit.\n",
 				 drm_crtc_index(&kcrtc->base));
 		}
 		spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
@@ -286,7 +286,7 @@ komeda_crtc_atomic_enable(struct drm_crtc *crtc,
 	komeda_crtc_do_flush(crtc, old);
 }
 
-static void
+void
 komeda_crtc_flush_and_wait_for_flip_done(struct komeda_crtc *kcrtc,
 					 struct completion *input_flip_done)
 {
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
index 93b7f09b96ca..327051bba5b6 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
@@ -69,6 +69,25 @@ static const struct drm_driver komeda_kms_driver = {
 	.minor = 1,
 };
 
+static void komeda_kms_atomic_commit_hw_done(struct drm_atomic_state *state)
+{
+	struct drm_device *dev = state->dev;
+	struct komeda_kms_dev *kms = to_kdev(dev);
+	int i;
+
+	for (i = 0; i < kms->n_crtcs; i++) {
+		struct komeda_crtc *kcrtc = &kms->crtcs[i];
+
+		if (kcrtc->base.state->active) {
+			struct completion *flip_done = NULL;
+			if (kcrtc->base.state->event)
+				flip_done = kcrtc->base.state->event->base.completion;
+			komeda_crtc_flush_and_wait_for_flip_done(kcrtc, flip_done);
+		}
+	}
+	drm_atomic_helper_commit_hw_done(state);
+}
+
 static void komeda_kms_commit_tail(struct drm_atomic_state *old_state)
 {
 	struct drm_device *dev = old_state->dev;
@@ -81,7 +100,7 @@ static void komeda_kms_commit_tail(struct drm_atomic_state *old_state)
 
 	drm_atomic_helper_commit_modeset_enables(dev, old_state);
 
-	drm_atomic_helper_commit_hw_done(old_state);
+	komeda_kms_atomic_commit_hw_done(old_state);
 
 	drm_atomic_helper_wait_for_flip_done(dev, old_state);
 
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.h b/drivers/gpu/drm/arm/display/komeda/komeda_kms.h
index 7889e380ab23..7339339ef6b8 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.h
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.h
@@ -183,6 +183,8 @@ void komeda_kms_cleanup_private_objs(struct komeda_kms_dev *kms);
 
 void komeda_crtc_handle_event(struct komeda_crtc   *kcrtc,
 			      struct komeda_events *evts);
+void komeda_crtc_flush_and_wait_for_flip_done(struct komeda_crtc *kcrtc,
+					      struct completion *input_flip_done);
 
 struct komeda_kms_dev *komeda_kms_attach(struct komeda_dev *mdev);
 void komeda_kms_detach(struct komeda_kms_dev *kms);
-- 
2.35.1

[PATCH AUTOSEL 6.0 04/44] drm/komeda: Fix handling of atomic commits in the atomic_commit_tail hook

[Sasha Levin]

From: Liviu Dudau <liviu.dudau@arm.com>

[ Upstream commit eaa225b6b52233d45457fd33730e1528c604d92d ]

Komeda driver relies on the generic DRM atomic helper functions to handle
commits. It only implements an atomic_commit_tail hook for the
mode_config_helper_funcs and even that one is pretty close to the generic
implementation with the exception of additional dma_fence signalling.

What the generic helper framework doesn't do is waiting for the actual
hardware to signal that the commit parameters have been written into the
appropriate registers. As we signal CRTC events only on the irq handlers,
we need to flush the configuration and wait for the hardware to respond.

Add the Komeda specific implementation for atomic_commit_hw_done() that
flushes and waits for flip done before calling drm_atomic_helper_commit_hw_done().

The fix was prompted by a patch from Carsten Haitzler where he was trying to
solve the same issue but in a different way that I think can lead to wrong
event signaling to userspace.

Reported-by: Carsten Haitzler <carsten.haitzler@arm.com>
Tested-by: Carsten Haitzler <carsten.haitzler@arm.com>
Reviewed-by: Carsten Haitzler <carsten.haitzler@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220722122139.288486-1-liviu.dudau@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../gpu/drm/arm/display/komeda/komeda_crtc.c  |  4 ++--
 .../gpu/drm/arm/display/komeda/komeda_kms.c   | 21 ++++++++++++++++++-
 .../gpu/drm/arm/display/komeda/komeda_kms.h   |  2 ++
 3 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
index 59172acb9738..292f533d8cf0 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
@@ -235,7 +235,7 @@ void komeda_crtc_handle_event(struct komeda_crtc   *kcrtc,
 			crtc->state->event = NULL;
 			drm_crtc_send_vblank_event(crtc, event);
 		} else {
-			DRM_WARN("CRTC[%d]: FLIP happen but no pending commit.\n",
+			DRM_WARN("CRTC[%d]: FLIP happened but no pending commit.\n",
 				 drm_crtc_index(&kcrtc->base));
 		}
 		spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
@@ -286,7 +286,7 @@ komeda_crtc_atomic_enable(struct drm_crtc *crtc,
 	komeda_crtc_do_flush(crtc, old);
 }
 
-static void
+void
 komeda_crtc_flush_and_wait_for_flip_done(struct komeda_crtc *kcrtc,
 					 struct completion *input_flip_done)
 {
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
index 93b7f09b96ca..327051bba5b6 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
@@ -69,6 +69,25 @@ static const struct drm_driver komeda_kms_driver = {
 	.minor = 1,
 };
 
+static void komeda_kms_atomic_commit_hw_done(struct drm_atomic_state *state)
+{
+	struct drm_device *dev = state->dev;
+	struct komeda_kms_dev *kms = to_kdev(dev);
+	int i;
+
+	for (i = 0; i < kms->n_crtcs; i++) {
+		struct komeda_crtc *kcrtc = &kms->crtcs[i];
+
+		if (kcrtc->base.state->active) {
+			struct completion *flip_done = NULL;
+			if (kcrtc->base.state->event)
+				flip_done = kcrtc->base.state->event->base.completion;
+			komeda_crtc_flush_and_wait_for_flip_done(kcrtc, flip_done);
+		}
+	}
+	drm_atomic_helper_commit_hw_done(state);
+}
+
 static void komeda_kms_commit_tail(struct drm_atomic_state *old_state)
 {
 	struct drm_device *dev = old_state->dev;
@@ -81,7 +100,7 @@ static void komeda_kms_commit_tail(struct drm_atomic_state *old_state)
 
 	drm_atomic_helper_commit_modeset_enables(dev, old_state);
 
-	drm_atomic_helper_commit_hw_done(old_state);
+	komeda_kms_atomic_commit_hw_done(old_state);
 
 	drm_atomic_helper_wait_for_flip_done(dev, old_state);
 
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.h b/drivers/gpu/drm/arm/display/komeda/komeda_kms.h
index 7889e380ab23..7339339ef6b8 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.h
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.h
@@ -183,6 +183,8 @@ void komeda_kms_cleanup_private_objs(struct komeda_kms_dev *kms);
 
 void komeda_crtc_handle_event(struct komeda_crtc   *kcrtc,
 			      struct komeda_events *evts);
+void komeda_crtc_flush_and_wait_for_flip_done(struct komeda_crtc *kcrtc,
+					      struct completion *input_flip_done);
 
 struct komeda_kms_dev *komeda_kms_attach(struct komeda_dev *mdev);
 void komeda_kms_detach(struct komeda_kms_dev *kms);
-- 
2.35.1

[PATCH AUTOSEL 6.0 05/44] gpu: lontium-lt9611: Fix NULL pointer dereference in lt9611_connector_init()

[Sasha Levin]

From: Zeng Jingxiang <linuszeng@tencent.com>

[ Upstream commit ef8886f321c5dab8124b9153d25afa2a71d05323 ]

A NULL check for bridge->encoder shows that it may be NULL, but it
already been dereferenced on all paths leading to the check.
812	if (!bridge->encoder) {

Dereference the pointer bridge->encoder.
810	drm_connector_attach_encoder(&lt9611->connector, bridge->encoder);

Signed-off-by: Zeng Jingxiang <linuszeng@tencent.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220727073119.1578972-1-zengjx95@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/bridge/lontium-lt9611.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c
index 8a60e83482a0..5fccacc159f0 100644
--- a/drivers/gpu/drm/bridge/lontium-lt9611.c
+++ b/drivers/gpu/drm/bridge/lontium-lt9611.c
@@ -813,13 +813,14 @@ static int lt9611_connector_init(struct drm_bridge *bridge, struct lt9611 *lt961
 
 	drm_connector_helper_add(&lt9611->connector,
 				 &lt9611_bridge_connector_helper_funcs);
-	drm_connector_attach_encoder(&lt9611->connector, bridge->encoder);
 
 	if (!bridge->encoder) {
 		DRM_ERROR("Parent encoder object not found");
 		return -ENODEV;
 	}
 
+	drm_connector_attach_encoder(&lt9611->connector, bridge->encoder);
+
 	return 0;
 }
 
-- 
2.35.1

[PATCH AUTOSEL 6.0 05/44] gpu: lontium-lt9611: Fix NULL pointer dereference in lt9611_connector_init()

[Sasha Levin]

From: Zeng Jingxiang <linuszeng@tencent.com>

[ Upstream commit ef8886f321c5dab8124b9153d25afa2a71d05323 ]

A NULL check for bridge->encoder shows that it may be NULL, but it
already been dereferenced on all paths leading to the check.
812	if (!bridge->encoder) {

Dereference the pointer bridge->encoder.
810	drm_connector_attach_encoder(&lt9611->connector, bridge->encoder);

Signed-off-by: Zeng Jingxiang <linuszeng@tencent.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220727073119.1578972-1-zengjx95@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/bridge/lontium-lt9611.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c
index 8a60e83482a0..5fccacc159f0 100644
--- a/drivers/gpu/drm/bridge/lontium-lt9611.c
+++ b/drivers/gpu/drm/bridge/lontium-lt9611.c
@@ -813,13 +813,14 @@ static int lt9611_connector_init(struct drm_bridge *bridge, struct lt9611 *lt961
 
 	drm_connector_helper_add(&lt9611->connector,
 				 &lt9611_bridge_connector_helper_funcs);
-	drm_connector_attach_encoder(&lt9611->connector, bridge->encoder);
 
 	if (!bridge->encoder) {
 		DRM_ERROR("Parent encoder object not found");
 		return -ENODEV;
 	}
 
+	drm_connector_attach_encoder(&lt9611->connector, bridge->encoder);
+
 	return 0;
 }
 
-- 
2.35.1

[PATCH AUTOSEL 6.0 06/44] drm/amd/display: fix overflow on MIN_I64 definition

[Sasha Levin]

From: David Gow <davidgow@google.com>

[ Upstream commit 6ae0632d17759852c07e2d1e0a31c728eb6ba246 ]

The definition of MIN_I64 in bw_fixed.c can cause gcc to whinge about
integer overflow, because it is treated as a positive value, which is
then negated. The temporary positive value is not necessarily
representable.

This causes the following warning:
../drivers/gpu/drm/amd/amdgpu/../display/dc/dml/calcs/bw_fixed.c:30:19:
warning: integer overflow in expression ‘-9223372036854775808’ of type
‘long long int’ results in ‘-9223372036854775808’ [-Woverflow]
  30 |         (int64_t)(-(1LL << 63))
     |                   ^

Writing out (-MAX_I64 - 1) works instead.

Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Tales Aparecida <tales.aparecida@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c b/drivers/gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c
index 6ca288fb5fb9..2d46bc527b21 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c
@@ -26,12 +26,12 @@
 #include "bw_fixed.h"
 
 
-#define MIN_I64 \
-	(int64_t)(-(1LL << 63))
-
 #define MAX_I64 \
 	(int64_t)((1ULL << 63) - 1)
 
+#define MIN_I64 \
+	(-MAX_I64 - 1)
+
 #define FRACTIONAL_PART_MASK \
 	((1ULL << BW_FIXED_BITS_PER_FRACTIONAL_PART) - 1)
 
-- 
2.35.1

[PATCH AUTOSEL 6.0 06/44] drm/amd/display: fix overflow on MIN_I64 definition

[Sasha Levin]

From: David Gow <davidgow@google.com>

[ Upstream commit 6ae0632d17759852c07e2d1e0a31c728eb6ba246 ]

The definition of MIN_I64 in bw_fixed.c can cause gcc to whinge about
integer overflow, because it is treated as a positive value, which is
then negated. The temporary positive value is not necessarily
representable.

This causes the following warning:
../drivers/gpu/drm/amd/amdgpu/../display/dc/dml/calcs/bw_fixed.c:30:19:
warning: integer overflow in expression ‘-9223372036854775808’ of type
‘long long int’ results in ‘-9223372036854775808’ [-Woverflow]
  30 |         (int64_t)(-(1LL << 63))
     |                   ^

Writing out (-MAX_I64 - 1) works instead.

Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Tales Aparecida <tales.aparecida@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c b/drivers/gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c
index 6ca288fb5fb9..2d46bc527b21 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c
@@ -26,12 +26,12 @@
 #include "bw_fixed.h"
 
 
-#define MIN_I64 \
-	(int64_t)(-(1LL << 63))
-
 #define MAX_I64 \
 	(int64_t)((1ULL << 63) - 1)
 
+#define MIN_I64 \
+	(-MAX_I64 - 1)
+
 #define FRACTIONAL_PART_MASK \
 	((1ULL << BW_FIXED_BITS_PER_FRACTIONAL_PART) - 1)
 
-- 
2.35.1

[PATCH AUTOSEL 6.0 06/44] drm/amd/display: fix overflow on MIN_I64 definition

[Sasha Levin]

From: David Gow <davidgow@google.com>

[ Upstream commit 6ae0632d17759852c07e2d1e0a31c728eb6ba246 ]

The definition of MIN_I64 in bw_fixed.c can cause gcc to whinge about
integer overflow, because it is treated as a positive value, which is
then negated. The temporary positive value is not necessarily
representable.

This causes the following warning:
../drivers/gpu/drm/amd/amdgpu/../display/dc/dml/calcs/bw_fixed.c:30:19:
warning: integer overflow in expression ‘-9223372036854775808’ of type
‘long long int’ results in ‘-9223372036854775808’ [-Woverflow]
  30 |         (int64_t)(-(1LL << 63))
     |                   ^

Writing out (-MAX_I64 - 1) works instead.

Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Tales Aparecida <tales.aparecida@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c b/drivers/gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c
index 6ca288fb5fb9..2d46bc527b21 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c
@@ -26,12 +26,12 @@
 #include "bw_fixed.h"
 
 
-#define MIN_I64 \
-	(int64_t)(-(1LL << 63))
-
 #define MAX_I64 \
 	(int64_t)((1ULL << 63) - 1)
 
+#define MIN_I64 \
+	(-MAX_I64 - 1)
+
 #define FRACTIONAL_PART_MASK \
 	((1ULL << BW_FIXED_BITS_PER_FRACTIONAL_PART) - 1)
 
-- 
2.35.1

[PATCH AUTOSEL 6.0 07/44] ALSA: hda: Fix page fault in snd_hda_codec_shutdown()

[Sasha Levin]

From: Cezary Rojewski <cezary.rojewski@intel.com>

[ Upstream commit f2bd1c5ae2cb0cf9525c9bffc0038c12dd7e1338 ]

If early probe of HDAudio bus driver fails e.g.: due to missing
firmware file, snd_hda_codec_shutdown() ends in manipulating
uninitialized codec->pcm_list_head causing page fault.

Initialization of HDAudio codec in ASoC is split in two:
- snd_hda_codec_device_init()
- snd_hda_codec_device_new()

snd_hda_codec_device_init() is called during probe_codecs() by HDAudio
bus driver while snd_hda_codec_device_new() is called by
codec-component's ->probe(). The second call will not happen until all
components required by related sound card are present within the ASoC
framework. With firmware failing to load during the PCI's deferred
initialization i.e.: probe_work(), no platform components are ever
registered. HDAudio codec enumeration is done at that point though, so
the codec components became registered to ASoC framework, calling
snd_hda_codec_device_init() in the process.

Now, during platform reboot snd_hda_codec_shutdown() is called for every
codec found on the HDAudio bus causing oops if any of them has not
completed both of their initialization steps. Relocating field
initialization fixes the issue.

Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220816111727.3218543-7-cezary.rojewski@intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/hda/hda_codec.c | 41 +++++++++++++++++++--------------------
 1 file changed, 20 insertions(+), 21 deletions(-)

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 384426d7e9dd..4ae8b9574778 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -931,8 +931,28 @@ snd_hda_codec_device_init(struct hda_bus *bus, unsigned int codec_addr,
 	}
 
 	codec->bus = bus;
+	codec->depop_delay = -1;
+	codec->fixup_id = HDA_FIXUP_ID_NOT_SET;
+	codec->core.dev.release = snd_hda_codec_dev_release;
+	codec->core.exec_verb = codec_exec_verb;
 	codec->core.type = HDA_DEV_LEGACY;
 
+	mutex_init(&codec->spdif_mutex);
+	mutex_init(&codec->control_mutex);
+	snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
+	snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
+	snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
+	snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
+	snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
+	snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
+	snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
+	snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
+	INIT_LIST_HEAD(&codec->conn_list);
+	INIT_LIST_HEAD(&codec->pcm_list_head);
+	INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
+	refcount_set(&codec->pcm_ref, 1);
+	init_waitqueue_head(&codec->remove_sleep);
+
 	return codec;
 }
 EXPORT_SYMBOL_GPL(snd_hda_codec_device_init);
@@ -985,29 +1005,8 @@ int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
 	if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
 		return -EINVAL;
 
-	codec->core.dev.release = snd_hda_codec_dev_release;
-	codec->core.exec_verb = codec_exec_verb;
-
 	codec->card = card;
 	codec->addr = codec_addr;
-	mutex_init(&codec->spdif_mutex);
-	mutex_init(&codec->control_mutex);
-	snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
-	snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
-	snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
-	snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
-	snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
-	snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
-	snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
-	snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
-	INIT_LIST_HEAD(&codec->conn_list);
-	INIT_LIST_HEAD(&codec->pcm_list_head);
-	refcount_set(&codec->pcm_ref, 1);
-	init_waitqueue_head(&codec->remove_sleep);
-
-	INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
-	codec->depop_delay = -1;
-	codec->fixup_id = HDA_FIXUP_ID_NOT_SET;
 
 #ifdef CONFIG_PM
 	codec->power_jiffies = jiffies;
-- 
2.35.1

[PATCH AUTOSEL 6.0 07/44] ALSA: hda: Fix page fault in snd_hda_codec_shutdown()

[Sasha Levin]

From: Cezary Rojewski <cezary.rojewski@intel.com>

[ Upstream commit f2bd1c5ae2cb0cf9525c9bffc0038c12dd7e1338 ]

If early probe of HDAudio bus driver fails e.g.: due to missing
firmware file, snd_hda_codec_shutdown() ends in manipulating
uninitialized codec->pcm_list_head causing page fault.

Initialization of HDAudio codec in ASoC is split in two:
- snd_hda_codec_device_init()
- snd_hda_codec_device_new()

snd_hda_codec_device_init() is called during probe_codecs() by HDAudio
bus driver while snd_hda_codec_device_new() is called by
codec-component's ->probe(). The second call will not happen until all
components required by related sound card are present within the ASoC
framework. With firmware failing to load during the PCI's deferred
initialization i.e.: probe_work(), no platform components are ever
registered. HDAudio codec enumeration is done at that point though, so
the codec components became registered to ASoC framework, calling
snd_hda_codec_device_init() in the process.

Now, during platform reboot snd_hda_codec_shutdown() is called for every
codec found on the HDAudio bus causing oops if any of them has not
completed both of their initialization steps. Relocating field
initialization fixes the issue.

Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220816111727.3218543-7-cezary.rojewski@intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/hda/hda_codec.c | 41 +++++++++++++++++++--------------------
 1 file changed, 20 insertions(+), 21 deletions(-)

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 384426d7e9dd..4ae8b9574778 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -931,8 +931,28 @@ snd_hda_codec_device_init(struct hda_bus *bus, unsigned int codec_addr,
 	}
 
 	codec->bus = bus;
+	codec->depop_delay = -1;
+	codec->fixup_id = HDA_FIXUP_ID_NOT_SET;
+	codec->core.dev.release = snd_hda_codec_dev_release;
+	codec->core.exec_verb = codec_exec_verb;
 	codec->core.type = HDA_DEV_LEGACY;
 
+	mutex_init(&codec->spdif_mutex);
+	mutex_init(&codec->control_mutex);
+	snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
+	snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
+	snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
+	snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
+	snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
+	snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
+	snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
+	snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
+	INIT_LIST_HEAD(&codec->conn_list);
+	INIT_LIST_HEAD(&codec->pcm_list_head);
+	INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
+	refcount_set(&codec->pcm_ref, 1);
+	init_waitqueue_head(&codec->remove_sleep);
+
 	return codec;
 }
 EXPORT_SYMBOL_GPL(snd_hda_codec_device_init);
@@ -985,29 +1005,8 @@ int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
 	if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
 		return -EINVAL;
 
-	codec->core.dev.release = snd_hda_codec_dev_release;
-	codec->core.exec_verb = codec_exec_verb;
-
 	codec->card = card;
 	codec->addr = codec_addr;
-	mutex_init(&codec->spdif_mutex);
-	mutex_init(&codec->control_mutex);
-	snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
-	snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
-	snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
-	snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
-	snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
-	snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
-	snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
-	snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
-	INIT_LIST_HEAD(&codec->conn_list);
-	INIT_LIST_HEAD(&codec->pcm_list_head);
-	refcount_set(&codec->pcm_ref, 1);
-	init_waitqueue_head(&codec->remove_sleep);
-
-	INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
-	codec->depop_delay = -1;
-	codec->fixup_id = HDA_FIXUP_ID_NOT_SET;
 
 #ifdef CONFIG_PM
 	codec->power_jiffies = jiffies;
-- 
2.35.1

[PATCH AUTOSEL 6.0 08/44] ALSA: usb-audio: Add quirk to enable Avid Mbox 3 support

[Sasha Levin]

From: Conner Knox <connerknoxpublic@gmail.com>

[ Upstream commit b01104fc62b6194c852124f6c6df1c0a5c031fc1 ]

Add support for Avid Mbox3 USB audio interface at 48kHz

Signed-off-by: Conner Knox <connerknoxpublic@gmail.com>
Link: https://lore.kernel.org/r/20220818201433.16360-1-mbarriolinares@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/usb/quirks-table.h |  76 ++++++++++
 sound/usb/quirks.c       | 302 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 378 insertions(+)

diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index f93201a830b5..06dfdd45cff8 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -2985,6 +2985,82 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 		}
 	}
 },
+/* DIGIDESIGN MBOX 3 */
+{
+	USB_DEVICE(0x0dba, 0x5000),
+	.driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
+		.vendor_name = "Digidesign",
+		.product_name = "Mbox 3",
+		.ifnum = QUIRK_ANY_INTERFACE,
+		.type = QUIRK_COMPOSITE,
+		.data = (const struct snd_usb_audio_quirk[]) {
+			{
+				.ifnum = 0,
+				.type = QUIRK_IGNORE_INTERFACE
+			},
+			{
+				.ifnum = 1,
+				.type = QUIRK_IGNORE_INTERFACE
+			},
+			{
+				.ifnum = 2,
+				.type = QUIRK_AUDIO_FIXED_ENDPOINT,
+				.data = &(const struct audioformat) {
+					.formats = SNDRV_PCM_FMTBIT_S24_3LE,
+					.channels = 4,
+					.iface = 2,
+					.altsetting = 1,
+					.altset_idx = 1,
+					.attributes = 0x00,
+					.endpoint = 0x01,
+					.ep_attr = USB_ENDPOINT_XFER_ISOC |
+						USB_ENDPOINT_SYNC_ASYNC,
+					.rates = SNDRV_PCM_RATE_48000,
+					.rate_min = 48000,
+					.rate_max = 48000,
+					.nr_rates = 1,
+					.rate_table = (unsigned int[]) {
+						48000
+					}
+				}
+			},
+			{
+				.ifnum = 3,
+				.type = QUIRK_AUDIO_FIXED_ENDPOINT,
+				.data = &(const struct audioformat) {
+					.formats = SNDRV_PCM_FMTBIT_S24_3LE,
+					.channels = 4,
+					.iface = 3,
+					.altsetting = 1,
+					.altset_idx = 1,
+					.endpoint = 0x81,
+					.attributes = 0x00,
+					.ep_attr = USB_ENDPOINT_XFER_ISOC |
+						USB_ENDPOINT_SYNC_ASYNC,
+					.maxpacksize = 0x009c,
+					.rates = SNDRV_PCM_RATE_48000,
+					.rate_min = 48000,
+					.rate_max = 48000,
+					.nr_rates = 1,
+					.rate_table = (unsigned int[]) {
+						48000
+					}
+				}
+			},
+			{
+				.ifnum = 4,
+				.type = QUIRK_MIDI_FIXED_ENDPOINT,
+				.data = &(const struct snd_usb_midi_endpoint_info) {
+					.out_cables = 0x0001,
+					.in_cables  = 0x0001
+				}
+			},
+			{
+				.ifnum = -1
+			}
+		}
+	}
+},
 {
 	/* Tascam US122 MKII - playback-only support */
 	USB_DEVICE_VENDOR_SPEC(0x0644, 0x8021),
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 5b4d8f5eade2..194c75c45628 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1020,6 +1020,304 @@ static int snd_usb_axefx3_boot_quirk(struct usb_device *dev)
 	return 0;
 }
 
+static void mbox3_setup_48_24_magic(struct usb_device *dev)
+{
+	/* The Mbox 3 is "little endian" */
+	/* max volume is: 0x0000. */
+	/* min volume is: 0x0080 (shown in little endian form) */
+
+
+	/* Load 48000Hz rate into buffer */
+	u8 com_buff[4] = {0x80, 0xbb, 0x00, 0x00};
+
+	/* Set 48000Hz sample rate */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			0x01, 0x21, 0x0100, 0x0001, &com_buff, 4);  //Is this really needed?
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			0x01, 0x21, 0x0100, 0x8101, &com_buff, 4);
+
+	/* Deactivate Tuner */
+	/* on  = 0x01*/
+	/* off = 0x00*/
+	com_buff[0] = 0x00;
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+		0x01, 0x21, 0x0003, 0x2001, &com_buff, 1);
+
+	/* Set clock source to Internal (as opposed to S/PDIF) */
+	com_buff[0] = 0x01;
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0100, 0x8001, &com_buff, 1);
+
+	/* Mute the hardware loopbacks to start the device in a known state. */
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x80;
+	/* Analogue input 1 left channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0110, 0x4001, &com_buff, 2);
+	/* Analogue input 1 right channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0111, 0x4001, &com_buff, 2);
+	/* Analogue input 2 left channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0114, 0x4001, &com_buff, 2);
+	/* Analogue input 2 right channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0115, 0x4001, &com_buff, 2);
+	/* Analogue input 3 left channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0118, 0x4001, &com_buff, 2);
+	/* Analogue input 3 right channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0119, 0x4001, &com_buff, 2);
+	/* Analogue input 4 left channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x011c, 0x4001, &com_buff, 2);
+	/* Analogue input 4 right channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x011d, 0x4001, &com_buff, 2);
+
+	/* Set software sends to output */
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x00;
+	/* Analogue software return 1 left channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0100, 0x4001, &com_buff, 2);
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x80;
+	/* Analogue software return 1 right channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0101, 0x4001, &com_buff, 2);
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x80;
+	/* Analogue software return 2 left channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0104, 0x4001, &com_buff, 2);
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x00;
+	/* Analogue software return 2 right channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0105, 0x4001, &com_buff, 2);
+
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x80;
+	/* Analogue software return 3 left channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0108, 0x4001, &com_buff, 2);
+	/* Analogue software return 3 right channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0109, 0x4001, &com_buff, 2);
+	/* Analogue software return 4 left channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x010c, 0x4001, &com_buff, 2);
+	/* Analogue software return 4 right channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x010d, 0x4001, &com_buff, 2);
+
+	/* Return to muting sends */
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x80;
+	/* Analogue fx return left channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0120, 0x4001, &com_buff, 2);
+	/* Analogue fx return right channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0121, 0x4001, &com_buff, 2);
+
+	/* Analogue software input 1 fx send: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0100, 0x4201, &com_buff, 2);
+	/* Analogue software input 2 fx send: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0101, 0x4201, &com_buff, 2);
+	/* Analogue software input 3 fx send: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0102, 0x4201, &com_buff, 2);
+	/* Analogue software input 4 fx send: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0103, 0x4201, &com_buff, 2);
+	/* Analogue input 1 fx send: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0104, 0x4201, &com_buff, 2);
+	/* Analogue input 2 fx send: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0105, 0x4201, &com_buff, 2);
+	/* Analogue input 3 fx send: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0106, 0x4201, &com_buff, 2);
+	/* Analogue input 4 fx send: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0107, 0x4201, &com_buff, 2);
+
+	/* Toggle allowing host control */
+	com_buff[0] = 0x02;
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			3, 0x21, 0x0000, 0x2001, &com_buff, 1);
+
+	/* Do not dim fx returns */
+	com_buff[0] = 0x00;
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			3, 0x21, 0x0002, 0x2001, &com_buff, 1);
+
+	/* Do not set fx returns to mono */
+	com_buff[0] = 0x00;
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			3, 0x21, 0x0001, 0x2001, &com_buff, 1);
+
+	/* Mute the S/PDIF hardware loopback
+	 * same odd volume logic here as above
+	 */
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x80;
+	/* S/PDIF hardware input 1 left channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0112, 0x4001, &com_buff, 2);
+	/* S/PDIF hardware input 1 right channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0113, 0x4001, &com_buff, 2);
+	/* S/PDIF hardware input 2 left channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0116, 0x4001, &com_buff, 2);
+	/* S/PDIF hardware input 2 right channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0117, 0x4001, &com_buff, 2);
+	/* S/PDIF hardware input 3 left channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x011a, 0x4001, &com_buff, 2);
+	/* S/PDIF hardware input 3 right channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x011b, 0x4001, &com_buff, 2);
+	/* S/PDIF hardware input 4 left channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x011e, 0x4001, &com_buff, 2);
+	/* S/PDIF hardware input 4 right channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x011f, 0x4001, &com_buff, 2);
+	/* S/PDIF software return 1 left channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0102, 0x4001, &com_buff, 2);
+	/* S/PDIF software return 1 right channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0103, 0x4001, &com_buff, 2);
+	/* S/PDIF software return 2 left channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0106, 0x4001, &com_buff, 2);
+	/* S/PDIF software return 2 right channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0107, 0x4001, &com_buff, 2);
+
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x00;
+	/* S/PDIF software return 3 left channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x010a, 0x4001, &com_buff, 2);
+
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x80;
+	/* S/PDIF software return 3 right channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x010b, 0x4001, &com_buff, 2);
+	/* S/PDIF software return 4 left channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x010e, 0x4001, &com_buff, 2);
+
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x00;
+	/* S/PDIF software return 4 right channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x010f, 0x4001, &com_buff, 2);
+
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x80;
+	/* S/PDIF fx returns left channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0122, 0x4001, &com_buff, 2);
+	/* S/PDIF fx returns right channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0123, 0x4001, &com_buff, 2);
+
+	/* Set the dropdown "Effect" to the first option */
+	/* Room1  = 0x00 */
+	/* Room2  = 0x01 */
+	/* Room3  = 0x02 */
+	/* Hall 1 = 0x03 */
+	/* Hall 2 = 0x04 */
+	/* Plate  = 0x05 */
+	/* Delay  = 0x06 */
+	/* Echo   = 0x07 */
+	com_buff[0] = 0x00;
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0200, 0x4301, &com_buff, 1);	/* max is 0xff */
+	/* min is 0x00 */
+
+
+	/* Set the effect duration to 0 */
+	/* max is 0xffff */
+	/* min is 0x0000 */
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x00;
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0400, 0x4301, &com_buff, 2);
+
+	/* Set the effect volume and feedback to 0 */
+	/* max is 0xff */
+	/* min is 0x00 */
+	com_buff[0] = 0x00;
+	/* feedback: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0500, 0x4301, &com_buff, 1);
+	/* volume: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0300, 0x4301, &com_buff, 1);
+
+	/* Set soft button hold duration */
+	/* 0x03 = 250ms */
+	/* 0x05 = 500ms DEFAULT */
+	/* 0x08 = 750ms */
+	/* 0x0a = 1sec */
+	com_buff[0] = 0x05;
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			3, 0x21, 0x0005, 0x2001, &com_buff, 1);
+
+	/* Use dim LEDs for button of state */
+	com_buff[0] = 0x00;
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			3, 0x21, 0x0004, 0x2001, &com_buff, 1);
+}
+
+#define MBOX3_DESCRIPTOR_SIZE	464
+
+static int snd_usb_mbox3_boot_quirk(struct usb_device *dev)
+{
+	struct usb_host_config *config = dev->actconfig;
+	int err;
+	int descriptor_size;
+
+	descriptor_size = le16_to_cpu(get_cfg_desc(config)->wTotalLength);
+
+	if (descriptor_size != MBOX3_DESCRIPTOR_SIZE) {
+		dev_err(&dev->dev, "Invalid descriptor size=%d.\n", descriptor_size);
+		return -ENODEV;
+	}
+
+	dev_dbg(&dev->dev, "device initialised!\n");
+
+	err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
+		&dev->descriptor, sizeof(dev->descriptor));
+	config = dev->actconfig;
+	if (err < 0)
+		dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err);
+
+	err = usb_reset_configuration(dev);
+	if (err < 0)
+		dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err);
+	dev_dbg(&dev->dev, "mbox3_boot: new boot length = %d\n",
+		le16_to_cpu(get_cfg_desc(config)->wTotalLength));
+
+	mbox3_setup_48_24_magic(dev);
+	dev_info(&dev->dev, "Digidesign Mbox 3: 24bit 48kHz");
+
+	return 0; /* Successful boot */
+}
 
 #define MICROBOOK_BUF_SIZE 128
 
@@ -1324,6 +1622,10 @@ int snd_usb_apply_boot_quirk(struct usb_device *dev,
 	case USB_ID(0x0dba, 0x3000):
 		/* Digidesign Mbox 2 */
 		return snd_usb_mbox2_boot_quirk(dev);
+	case USB_ID(0x0dba, 0x5000):
+		/* Digidesign Mbox 3 */
+		return snd_usb_mbox3_boot_quirk(dev);
+
 
 	case USB_ID(0x1235, 0x0010): /* Focusrite Novation Saffire 6 USB */
 	case USB_ID(0x1235, 0x0018): /* Focusrite Novation Twitch */
-- 
2.35.1

[PATCH AUTOSEL 6.0 08/44] ALSA: usb-audio: Add quirk to enable Avid Mbox 3 support

[Sasha Levin]

From: Conner Knox <connerknoxpublic@gmail.com>

[ Upstream commit b01104fc62b6194c852124f6c6df1c0a5c031fc1 ]

Add support for Avid Mbox3 USB audio interface at 48kHz

Signed-off-by: Conner Knox <connerknoxpublic@gmail.com>
Link: https://lore.kernel.org/r/20220818201433.16360-1-mbarriolinares@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/usb/quirks-table.h |  76 ++++++++++
 sound/usb/quirks.c       | 302 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 378 insertions(+)

diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index f93201a830b5..06dfdd45cff8 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -2985,6 +2985,82 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 		}
 	}
 },
+/* DIGIDESIGN MBOX 3 */
+{
+	USB_DEVICE(0x0dba, 0x5000),
+	.driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
+		.vendor_name = "Digidesign",
+		.product_name = "Mbox 3",
+		.ifnum = QUIRK_ANY_INTERFACE,
+		.type = QUIRK_COMPOSITE,
+		.data = (const struct snd_usb_audio_quirk[]) {
+			{
+				.ifnum = 0,
+				.type = QUIRK_IGNORE_INTERFACE
+			},
+			{
+				.ifnum = 1,
+				.type = QUIRK_IGNORE_INTERFACE
+			},
+			{
+				.ifnum = 2,
+				.type = QUIRK_AUDIO_FIXED_ENDPOINT,
+				.data = &(const struct audioformat) {
+					.formats = SNDRV_PCM_FMTBIT_S24_3LE,
+					.channels = 4,
+					.iface = 2,
+					.altsetting = 1,
+					.altset_idx = 1,
+					.attributes = 0x00,
+					.endpoint = 0x01,
+					.ep_attr = USB_ENDPOINT_XFER_ISOC |
+						USB_ENDPOINT_SYNC_ASYNC,
+					.rates = SNDRV_PCM_RATE_48000,
+					.rate_min = 48000,
+					.rate_max = 48000,
+					.nr_rates = 1,
+					.rate_table = (unsigned int[]) {
+						48000
+					}
+				}
+			},
+			{
+				.ifnum = 3,
+				.type = QUIRK_AUDIO_FIXED_ENDPOINT,
+				.data = &(const struct audioformat) {
+					.formats = SNDRV_PCM_FMTBIT_S24_3LE,
+					.channels = 4,
+					.iface = 3,
+					.altsetting = 1,
+					.altset_idx = 1,
+					.endpoint = 0x81,
+					.attributes = 0x00,
+					.ep_attr = USB_ENDPOINT_XFER_ISOC |
+						USB_ENDPOINT_SYNC_ASYNC,
+					.maxpacksize = 0x009c,
+					.rates = SNDRV_PCM_RATE_48000,
+					.rate_min = 48000,
+					.rate_max = 48000,
+					.nr_rates = 1,
+					.rate_table = (unsigned int[]) {
+						48000
+					}
+				}
+			},
+			{
+				.ifnum = 4,
+				.type = QUIRK_MIDI_FIXED_ENDPOINT,
+				.data = &(const struct snd_usb_midi_endpoint_info) {
+					.out_cables = 0x0001,
+					.in_cables  = 0x0001
+				}
+			},
+			{
+				.ifnum = -1
+			}
+		}
+	}
+},
 {
 	/* Tascam US122 MKII - playback-only support */
 	USB_DEVICE_VENDOR_SPEC(0x0644, 0x8021),
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 5b4d8f5eade2..194c75c45628 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1020,6 +1020,304 @@ static int snd_usb_axefx3_boot_quirk(struct usb_device *dev)
 	return 0;
 }
 
+static void mbox3_setup_48_24_magic(struct usb_device *dev)
+{
+	/* The Mbox 3 is "little endian" */
+	/* max volume is: 0x0000. */
+	/* min volume is: 0x0080 (shown in little endian form) */
+
+
+	/* Load 48000Hz rate into buffer */
+	u8 com_buff[4] = {0x80, 0xbb, 0x00, 0x00};
+
+	/* Set 48000Hz sample rate */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			0x01, 0x21, 0x0100, 0x0001, &com_buff, 4);  //Is this really needed?
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			0x01, 0x21, 0x0100, 0x8101, &com_buff, 4);
+
+	/* Deactivate Tuner */
+	/* on  = 0x01*/
+	/* off = 0x00*/
+	com_buff[0] = 0x00;
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+		0x01, 0x21, 0x0003, 0x2001, &com_buff, 1);
+
+	/* Set clock source to Internal (as opposed to S/PDIF) */
+	com_buff[0] = 0x01;
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0100, 0x8001, &com_buff, 1);
+
+	/* Mute the hardware loopbacks to start the device in a known state. */
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x80;
+	/* Analogue input 1 left channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0110, 0x4001, &com_buff, 2);
+	/* Analogue input 1 right channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0111, 0x4001, &com_buff, 2);
+	/* Analogue input 2 left channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0114, 0x4001, &com_buff, 2);
+	/* Analogue input 2 right channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0115, 0x4001, &com_buff, 2);
+	/* Analogue input 3 left channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0118, 0x4001, &com_buff, 2);
+	/* Analogue input 3 right channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0119, 0x4001, &com_buff, 2);
+	/* Analogue input 4 left channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x011c, 0x4001, &com_buff, 2);
+	/* Analogue input 4 right channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x011d, 0x4001, &com_buff, 2);
+
+	/* Set software sends to output */
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x00;
+	/* Analogue software return 1 left channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0100, 0x4001, &com_buff, 2);
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x80;
+	/* Analogue software return 1 right channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0101, 0x4001, &com_buff, 2);
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x80;
+	/* Analogue software return 2 left channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0104, 0x4001, &com_buff, 2);
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x00;
+	/* Analogue software return 2 right channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0105, 0x4001, &com_buff, 2);
+
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x80;
+	/* Analogue software return 3 left channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0108, 0x4001, &com_buff, 2);
+	/* Analogue software return 3 right channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0109, 0x4001, &com_buff, 2);
+	/* Analogue software return 4 left channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x010c, 0x4001, &com_buff, 2);
+	/* Analogue software return 4 right channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x010d, 0x4001, &com_buff, 2);
+
+	/* Return to muting sends */
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x80;
+	/* Analogue fx return left channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0120, 0x4001, &com_buff, 2);
+	/* Analogue fx return right channel: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0121, 0x4001, &com_buff, 2);
+
+	/* Analogue software input 1 fx send: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0100, 0x4201, &com_buff, 2);
+	/* Analogue software input 2 fx send: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0101, 0x4201, &com_buff, 2);
+	/* Analogue software input 3 fx send: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0102, 0x4201, &com_buff, 2);
+	/* Analogue software input 4 fx send: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0103, 0x4201, &com_buff, 2);
+	/* Analogue input 1 fx send: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0104, 0x4201, &com_buff, 2);
+	/* Analogue input 2 fx send: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0105, 0x4201, &com_buff, 2);
+	/* Analogue input 3 fx send: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0106, 0x4201, &com_buff, 2);
+	/* Analogue input 4 fx send: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0107, 0x4201, &com_buff, 2);
+
+	/* Toggle allowing host control */
+	com_buff[0] = 0x02;
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			3, 0x21, 0x0000, 0x2001, &com_buff, 1);
+
+	/* Do not dim fx returns */
+	com_buff[0] = 0x00;
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			3, 0x21, 0x0002, 0x2001, &com_buff, 1);
+
+	/* Do not set fx returns to mono */
+	com_buff[0] = 0x00;
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			3, 0x21, 0x0001, 0x2001, &com_buff, 1);
+
+	/* Mute the S/PDIF hardware loopback
+	 * same odd volume logic here as above
+	 */
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x80;
+	/* S/PDIF hardware input 1 left channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0112, 0x4001, &com_buff, 2);
+	/* S/PDIF hardware input 1 right channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0113, 0x4001, &com_buff, 2);
+	/* S/PDIF hardware input 2 left channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0116, 0x4001, &com_buff, 2);
+	/* S/PDIF hardware input 2 right channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0117, 0x4001, &com_buff, 2);
+	/* S/PDIF hardware input 3 left channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x011a, 0x4001, &com_buff, 2);
+	/* S/PDIF hardware input 3 right channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x011b, 0x4001, &com_buff, 2);
+	/* S/PDIF hardware input 4 left channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x011e, 0x4001, &com_buff, 2);
+	/* S/PDIF hardware input 4 right channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x011f, 0x4001, &com_buff, 2);
+	/* S/PDIF software return 1 left channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0102, 0x4001, &com_buff, 2);
+	/* S/PDIF software return 1 right channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0103, 0x4001, &com_buff, 2);
+	/* S/PDIF software return 2 left channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0106, 0x4001, &com_buff, 2);
+	/* S/PDIF software return 2 right channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0107, 0x4001, &com_buff, 2);
+
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x00;
+	/* S/PDIF software return 3 left channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x010a, 0x4001, &com_buff, 2);
+
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x80;
+	/* S/PDIF software return 3 right channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x010b, 0x4001, &com_buff, 2);
+	/* S/PDIF software return 4 left channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x010e, 0x4001, &com_buff, 2);
+
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x00;
+	/* S/PDIF software return 4 right channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x010f, 0x4001, &com_buff, 2);
+
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x80;
+	/* S/PDIF fx returns left channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0122, 0x4001, &com_buff, 2);
+	/* S/PDIF fx returns right channel */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0123, 0x4001, &com_buff, 2);
+
+	/* Set the dropdown "Effect" to the first option */
+	/* Room1  = 0x00 */
+	/* Room2  = 0x01 */
+	/* Room3  = 0x02 */
+	/* Hall 1 = 0x03 */
+	/* Hall 2 = 0x04 */
+	/* Plate  = 0x05 */
+	/* Delay  = 0x06 */
+	/* Echo   = 0x07 */
+	com_buff[0] = 0x00;
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0200, 0x4301, &com_buff, 1);	/* max is 0xff */
+	/* min is 0x00 */
+
+
+	/* Set the effect duration to 0 */
+	/* max is 0xffff */
+	/* min is 0x0000 */
+	com_buff[0] = 0x00;
+	com_buff[1] = 0x00;
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0400, 0x4301, &com_buff, 2);
+
+	/* Set the effect volume and feedback to 0 */
+	/* max is 0xff */
+	/* min is 0x00 */
+	com_buff[0] = 0x00;
+	/* feedback: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0500, 0x4301, &com_buff, 1);
+	/* volume: */
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			1, 0x21, 0x0300, 0x4301, &com_buff, 1);
+
+	/* Set soft button hold duration */
+	/* 0x03 = 250ms */
+	/* 0x05 = 500ms DEFAULT */
+	/* 0x08 = 750ms */
+	/* 0x0a = 1sec */
+	com_buff[0] = 0x05;
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			3, 0x21, 0x0005, 0x2001, &com_buff, 1);
+
+	/* Use dim LEDs for button of state */
+	com_buff[0] = 0x00;
+	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+			3, 0x21, 0x0004, 0x2001, &com_buff, 1);
+}
+
+#define MBOX3_DESCRIPTOR_SIZE	464
+
+static int snd_usb_mbox3_boot_quirk(struct usb_device *dev)
+{
+	struct usb_host_config *config = dev->actconfig;
+	int err;
+	int descriptor_size;
+
+	descriptor_size = le16_to_cpu(get_cfg_desc(config)->wTotalLength);
+
+	if (descriptor_size != MBOX3_DESCRIPTOR_SIZE) {
+		dev_err(&dev->dev, "Invalid descriptor size=%d.\n", descriptor_size);
+		return -ENODEV;
+	}
+
+	dev_dbg(&dev->dev, "device initialised!\n");
+
+	err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
+		&dev->descriptor, sizeof(dev->descriptor));
+	config = dev->actconfig;
+	if (err < 0)
+		dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err);
+
+	err = usb_reset_configuration(dev);
+	if (err < 0)
+		dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err);
+	dev_dbg(&dev->dev, "mbox3_boot: new boot length = %d\n",
+		le16_to_cpu(get_cfg_desc(config)->wTotalLength));
+
+	mbox3_setup_48_24_magic(dev);
+	dev_info(&dev->dev, "Digidesign Mbox 3: 24bit 48kHz");
+
+	return 0; /* Successful boot */
+}
 
 #define MICROBOOK_BUF_SIZE 128
 
@@ -1324,6 +1622,10 @@ int snd_usb_apply_boot_quirk(struct usb_device *dev,
 	case USB_ID(0x0dba, 0x3000):
 		/* Digidesign Mbox 2 */
 		return snd_usb_mbox2_boot_quirk(dev);
+	case USB_ID(0x0dba, 0x5000):
+		/* Digidesign Mbox 3 */
+		return snd_usb_mbox3_boot_quirk(dev);
+
 
 	case USB_ID(0x1235, 0x0010): /* Focusrite Novation Saffire 6 USB */
 	case USB_ID(0x1235, 0x0018): /* Focusrite Novation Twitch */
-- 
2.35.1

[PATCH AUTOSEL 6.0 09/44] udmabuf: Set ubuf->sg = NULL if the creation of sg table fails

[Sasha Levin]

From: Vivek Kasireddy <vivek.kasireddy@intel.com>

[ Upstream commit d9c04a1b7a15b5e74b2977461d9511e497f05d8f ]

When userspace tries to map the dmabuf and if for some reason
(e.g. OOM) the creation of the sg table fails, ubuf->sg needs to be
set to NULL. Otherwise, when the userspace subsequently closes the
dmabuf fd, we'd try to erroneously free the invalid sg table from
release_udmabuf resulting in the following crash reported by syzbot:

general protection fault, probably for non-canonical address
0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 3609 Comm: syz-executor487 Not tainted
5.19.0-syzkaller-13930-g7ebfc85e2cd7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 07/22/2022
RIP: 0010:dma_unmap_sgtable include/linux/dma-mapping.h:378 [inline]
RIP: 0010:put_sg_table drivers/dma-buf/udmabuf.c:89 [inline]
RIP: 0010:release_udmabuf+0xcb/0x4f0 drivers/dma-buf/udmabuf.c:114
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 2b 04 00 00 48 8d 7d 0c 4c
8b 63 30 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14
02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 e2
RSP: 0018:ffffc900037efd30 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffffff8cb67800 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff84ad27e0 RDI: 0000000000000000
RBP: fffffffffffffff4 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000008c07c R12: ffff88801fa05000
R13: ffff888073db07e8 R14: ffff888025c25440 R15: 0000000000000000
FS:  0000555555fc4300(0000) GS:ffff8880b9a00000(0000)
knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc1c0ce06e4 CR3: 00000000715e6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 dma_buf_release+0x157/0x2d0 drivers/dma-buf/dma-buf.c:78
 __dentry_kill+0x42b/0x640 fs/dcache.c:612
 dentry_kill fs/dcache.c:733 [inline]
 dput+0x806/0xdb0 fs/dcache.c:913
 __fput+0x39c/0x9d0 fs/file_table.c:333
 task_work_run+0xdd/0x1a0 kernel/task_work.c:177
 ptrace_notify+0x114/0x140 kernel/signal.c:2353
 ptrace_report_syscall include/linux/ptrace.h:420 [inline]
 ptrace_report_syscall_exit include/linux/ptrace.h:482 [inline]
 syscall_exit_work kernel/entry/common.c:249 [inline]
 syscall_exit_to_user_mode_prepare+0x129/0x280 kernel/entry/common.c:276
 __syscall_exit_to_user_mode_work kernel/entry/common.c:281 [inline]
 syscall_exit_to_user_mode+0x9/0x50 kernel/entry/common.c:294
 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc1c0c35b6b
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24
0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00
f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007ffd78a06090 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007fc1c0c35b6b
RDX: 0000000020000280 RSI: 0000000040086200 RDI: 0000000000000006
RBP: 0000000000000007 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 000000000000000c
R13: 0000000000000003 R14: 00007fc1c0cfe4a0 R15: 00007ffd78a06140
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dma_unmap_sgtable include/linux/dma-mapping.h:378 [inline]
RIP: 0010:put_sg_table drivers/dma-buf/udmabuf.c:89 [inline]
RIP: 0010:release_udmabuf+0xcb/0x4f0 drivers/dma-buf/udmabuf.c:114

Reported-by: syzbot+c80e9ef5d8bb45894db0@syzkaller.appspotmail.com
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20220825063522.801264-1-vivek.kasireddy@intel.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma-buf/udmabuf.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c
index 38e8767ec371..bf11d32205f3 100644
--- a/drivers/dma-buf/udmabuf.c
+++ b/drivers/dma-buf/udmabuf.c
@@ -124,17 +124,20 @@ static int begin_cpu_udmabuf(struct dma_buf *buf,
 {
 	struct udmabuf *ubuf = buf->priv;
 	struct device *dev = ubuf->device->this_device;
+	int ret = 0;
 
 	if (!ubuf->sg) {
 		ubuf->sg = get_sg_table(dev, buf, direction);
-		if (IS_ERR(ubuf->sg))
-			return PTR_ERR(ubuf->sg);
+		if (IS_ERR(ubuf->sg)) {
+			ret = PTR_ERR(ubuf->sg);
+			ubuf->sg = NULL;
+		}
 	} else {
 		dma_sync_sg_for_cpu(dev, ubuf->sg->sgl, ubuf->sg->nents,
 				    direction);
 	}
 
-	return 0;
+	return ret;
 }
 
 static int end_cpu_udmabuf(struct dma_buf *buf,
-- 
2.35.1

[PATCH AUTOSEL 6.0 09/44] udmabuf: Set ubuf->sg = NULL if the creation of sg table fails

[Sasha Levin]

From: Vivek Kasireddy <vivek.kasireddy@intel.com>

[ Upstream commit d9c04a1b7a15b5e74b2977461d9511e497f05d8f ]

When userspace tries to map the dmabuf and if for some reason
(e.g. OOM) the creation of the sg table fails, ubuf->sg needs to be
set to NULL. Otherwise, when the userspace subsequently closes the
dmabuf fd, we'd try to erroneously free the invalid sg table from
release_udmabuf resulting in the following crash reported by syzbot:

general protection fault, probably for non-canonical address
0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 3609 Comm: syz-executor487 Not tainted
5.19.0-syzkaller-13930-g7ebfc85e2cd7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 07/22/2022
RIP: 0010:dma_unmap_sgtable include/linux/dma-mapping.h:378 [inline]
RIP: 0010:put_sg_table drivers/dma-buf/udmabuf.c:89 [inline]
RIP: 0010:release_udmabuf+0xcb/0x4f0 drivers/dma-buf/udmabuf.c:114
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 2b 04 00 00 48 8d 7d 0c 4c
8b 63 30 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14
02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 e2
RSP: 0018:ffffc900037efd30 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffffff8cb67800 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff84ad27e0 RDI: 0000000000000000
RBP: fffffffffffffff4 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000008c07c R12: ffff88801fa05000
R13: ffff888073db07e8 R14: ffff888025c25440 R15: 0000000000000000
FS:  0000555555fc4300(0000) GS:ffff8880b9a00000(0000)
knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc1c0ce06e4 CR3: 00000000715e6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 dma_buf_release+0x157/0x2d0 drivers/dma-buf/dma-buf.c:78
 __dentry_kill+0x42b/0x640 fs/dcache.c:612
 dentry_kill fs/dcache.c:733 [inline]
 dput+0x806/0xdb0 fs/dcache.c:913
 __fput+0x39c/0x9d0 fs/file_table.c:333
 task_work_run+0xdd/0x1a0 kernel/task_work.c:177
 ptrace_notify+0x114/0x140 kernel/signal.c:2353
 ptrace_report_syscall include/linux/ptrace.h:420 [inline]
 ptrace_report_syscall_exit include/linux/ptrace.h:482 [inline]
 syscall_exit_work kernel/entry/common.c:249 [inline]
 syscall_exit_to_user_mode_prepare+0x129/0x280 kernel/entry/common.c:276
 __syscall_exit_to_user_mode_work kernel/entry/common.c:281 [inline]
 syscall_exit_to_user_mode+0x9/0x50 kernel/entry/common.c:294
 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc1c0c35b6b
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24
0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00
f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007ffd78a06090 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007fc1c0c35b6b
RDX: 0000000020000280 RSI: 0000000040086200 RDI: 0000000000000006
RBP: 0000000000000007 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 000000000000000c
R13: 0000000000000003 R14: 00007fc1c0cfe4a0 R15: 00007ffd78a06140
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dma_unmap_sgtable include/linux/dma-mapping.h:378 [inline]
RIP: 0010:put_sg_table drivers/dma-buf/udmabuf.c:89 [inline]
RIP: 0010:release_udmabuf+0xcb/0x4f0 drivers/dma-buf/udmabuf.c:114

Reported-by: syzbot+c80e9ef5d8bb45894db0@syzkaller.appspotmail.com
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20220825063522.801264-1-vivek.kasireddy@intel.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma-buf/udmabuf.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c
index 38e8767ec371..bf11d32205f3 100644
--- a/drivers/dma-buf/udmabuf.c
+++ b/drivers/dma-buf/udmabuf.c
@@ -124,17 +124,20 @@ static int begin_cpu_udmabuf(struct dma_buf *buf,
 {
 	struct udmabuf *ubuf = buf->priv;
 	struct device *dev = ubuf->device->this_device;
+	int ret = 0;
 
 	if (!ubuf->sg) {
 		ubuf->sg = get_sg_table(dev, buf, direction);
-		if (IS_ERR(ubuf->sg))
-			return PTR_ERR(ubuf->sg);
+		if (IS_ERR(ubuf->sg)) {
+			ret = PTR_ERR(ubuf->sg);
+			ubuf->sg = NULL;
+		}
 	} else {
 		dma_sync_sg_for_cpu(dev, ubuf->sg->sgl, ubuf->sg->nents,
 				    direction);
 	}
 
-	return 0;
+	return ret;
 }
 
 static int end_cpu_udmabuf(struct dma_buf *buf,
-- 
2.35.1

[PATCH AUTOSEL 6.0 10/44] platform/x86: pmc_atom: Improve quirk message to be less cryptic

[Sasha Levin]

From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

[ Upstream commit 32c9b75640aeb1b144f9e2963c1640f4cef7c6f2 ]

Not everyone can get what "critclks" means in the message, improve
it to make less cryptic.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220801113734.36131-2-andriy.shevchenko@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/pmc_atom.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/pmc_atom.c b/drivers/platform/x86/pmc_atom.c
index 5c757c7f64de..f4046572a9fe 100644
--- a/drivers/platform/x86/pmc_atom.c
+++ b/drivers/platform/x86/pmc_atom.c
@@ -354,7 +354,7 @@ static bool pmc_clk_is_critical = true;
 
 static int dmi_callback(const struct dmi_system_id *d)
 {
-	pr_info("%s critclks quirk enabled\n", d->ident);
+	pr_info("%s: PMC critical clocks quirk enabled\n", d->ident);
 
 	return 1;
 }
-- 
2.35.1

[PATCH AUTOSEL 6.0 11/44] drm/amd: fix potential memory leak

[Sasha Levin]

From: Bernard Zhao <bernard@vivo.com>

[ Upstream commit 6160216fd2c97107e8a9ab39863b056d677fcd85 ]

This patch fix potential memory leak (clk_src) when function run
into last return NULL.

s/free/kfree/ - Alex

Signed-off-by: Bernard Zhao <bernard@vivo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
index 44ac1c2aabf5..b96e8089aaa3 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
@@ -1719,6 +1719,7 @@ static struct clock_source *dcn30_clock_source_create(
 	}
 
 	BREAK_TO_DEBUGGER();
+	kfree(clk_src);
 	return NULL;
 }
 
-- 
2.35.1

[PATCH AUTOSEL 6.0 11/44] drm/amd: fix potential memory leak

[Sasha Levin]

From: Bernard Zhao <bernard@vivo.com>

[ Upstream commit 6160216fd2c97107e8a9ab39863b056d677fcd85 ]

This patch fix potential memory leak (clk_src) when function run
into last return NULL.

s/free/kfree/ - Alex

Signed-off-by: Bernard Zhao <bernard@vivo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
index 44ac1c2aabf5..b96e8089aaa3 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
@@ -1719,6 +1719,7 @@ static struct clock_source *dcn30_clock_source_create(
 	}
 
 	BREAK_TO_DEBUGGER();
+	kfree(clk_src);
 	return NULL;
 }
 
-- 
2.35.1

[PATCH AUTOSEL 6.0 11/44] drm/amd: fix potential memory leak

[Sasha Levin]

From: Bernard Zhao <bernard@vivo.com>

[ Upstream commit 6160216fd2c97107e8a9ab39863b056d677fcd85 ]

This patch fix potential memory leak (clk_src) when function run
into last return NULL.

s/free/kfree/ - Alex

Signed-off-by: Bernard Zhao <bernard@vivo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
index 44ac1c2aabf5..b96e8089aaa3 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
@@ -1719,6 +1719,7 @@ static struct clock_source *dcn30_clock_source_create(
 	}
 
 	BREAK_TO_DEBUGGER();
+	kfree(clk_src);
 	return NULL;
 }
 
-- 
2.35.1

[PATCH AUTOSEL 6.0 12/44] drm: bridge: dw_hdmi: only trigger hotplug event on link change

[Sasha Levin]

From: Lucas Stach <l.stach@pengutronix.de>

[ Upstream commit da09daf881082266e4075657fac53c7966de8e4d ]

There are two events that signal a real change of the link state: HPD going
high means the sink is newly connected or wants the source to re-read the
EDID, RX sense going low is a indication that the link has been disconnected.

Ignore the other two events that also trigger interrupts, but don't need
immediate attention: HPD going low does not necessarily mean the link has
been lost and should not trigger a immediate read of the status. RX sense
going high also does not require a detect cycle, as HPD going high is the
right point in time to read the EDID.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> (v1)
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220826185733.3213248-1-l.stach@pengutronix.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 25a60eb4d67c..40d8ca37f5bc 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -3096,6 +3096,7 @@ static irqreturn_t dw_hdmi_irq(int irq, void *dev_id)
 {
 	struct dw_hdmi *hdmi = dev_id;
 	u8 intr_stat, phy_int_pol, phy_pol_mask, phy_stat;
+	enum drm_connector_status status = connector_status_unknown;
 
 	intr_stat = hdmi_readb(hdmi, HDMI_IH_PHY_STAT0);
 	phy_int_pol = hdmi_readb(hdmi, HDMI_PHY_POL0);
@@ -3134,13 +3135,15 @@ static irqreturn_t dw_hdmi_irq(int irq, void *dev_id)
 			cec_notifier_phys_addr_invalidate(hdmi->cec_notifier);
 			mutex_unlock(&hdmi->cec_notifier_mutex);
 		}
-	}
 
-	if (intr_stat & HDMI_IH_PHY_STAT0_HPD) {
-		enum drm_connector_status status = phy_int_pol & HDMI_PHY_HPD
-						 ? connector_status_connected
-						 : connector_status_disconnected;
+		if (phy_stat & HDMI_PHY_HPD)
+			status = connector_status_connected;
+
+		if (!(phy_stat & (HDMI_PHY_HPD | HDMI_PHY_RX_SENSE)))
+			status = connector_status_disconnected;
+	}
 
+	if (status != connector_status_unknown) {
 		dev_dbg(hdmi->dev, "EVENT=%s\n",
 			status == connector_status_connected ?
 			"plugin" : "plugout");
-- 
2.35.1

[PATCH AUTOSEL 6.0 12/44] drm: bridge: dw_hdmi: only trigger hotplug event on link change

[Sasha Levin]

From: Lucas Stach <l.stach@pengutronix.de>

[ Upstream commit da09daf881082266e4075657fac53c7966de8e4d ]

There are two events that signal a real change of the link state: HPD going
high means the sink is newly connected or wants the source to re-read the
EDID, RX sense going low is a indication that the link has been disconnected.

Ignore the other two events that also trigger interrupts, but don't need
immediate attention: HPD going low does not necessarily mean the link has
been lost and should not trigger a immediate read of the status. RX sense
going high also does not require a detect cycle, as HPD going high is the
right point in time to read the EDID.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> (v1)
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220826185733.3213248-1-l.stach@pengutronix.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 25a60eb4d67c..40d8ca37f5bc 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -3096,6 +3096,7 @@ static irqreturn_t dw_hdmi_irq(int irq, void *dev_id)
 {
 	struct dw_hdmi *hdmi = dev_id;
 	u8 intr_stat, phy_int_pol, phy_pol_mask, phy_stat;
+	enum drm_connector_status status = connector_status_unknown;
 
 	intr_stat = hdmi_readb(hdmi, HDMI_IH_PHY_STAT0);
 	phy_int_pol = hdmi_readb(hdmi, HDMI_PHY_POL0);
@@ -3134,13 +3135,15 @@ static irqreturn_t dw_hdmi_irq(int irq, void *dev_id)
 			cec_notifier_phys_addr_invalidate(hdmi->cec_notifier);
 			mutex_unlock(&hdmi->cec_notifier_mutex);
 		}
-	}
 
-	if (intr_stat & HDMI_IH_PHY_STAT0_HPD) {
-		enum drm_connector_status status = phy_int_pol & HDMI_PHY_HPD
-						 ? connector_status_connected
-						 : connector_status_disconnected;
+		if (phy_stat & HDMI_PHY_HPD)
+			status = connector_status_connected;
+
+		if (!(phy_stat & (HDMI_PHY_HPD | HDMI_PHY_RX_SENSE)))
+			status = connector_status_disconnected;
+	}
 
+	if (status != connector_status_unknown) {
 		dev_dbg(hdmi->dev, "EVENT=%s\n",
 			status == connector_status_connected ?
 			"plugin" : "plugout");
-- 
2.35.1

[PATCH AUTOSEL 6.0 13/44] drm/amd/display: Fix variable dereferenced before check

[Sasha Levin]

From: sunliming <sunliming@kylinos.cn>

[ Upstream commit 45a92f45f4578ff89da7dc5ef50bab4ef870f3b7 ]

Fixes the following smatch warning:

drivers/gpu/drm/amd/amdgpu/../display/dc/dc_dmub_srv.c:311 dc_dmub_srv_p_state_delegate()
warn: variable dereferenced before check 'dc' (see line 309)

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: sunliming <sunliming@kylinos.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
index 52a61b3e5a8b..2e243b70747f 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
+++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
@@ -323,11 +323,13 @@ bool dc_dmub_srv_p_state_delegate(struct dc *dc, bool should_manage_pstate, stru
 	struct dmub_cmd_fw_assisted_mclk_switch_config *config_data = &cmd.fw_assisted_mclk_switch.config_data;
 	int i = 0;
 	int ramp_up_num_steps = 1; // TODO: Ramp is currently disabled. Reenable it.
-	uint8_t visual_confirm_enabled = dc->debug.visual_confirm == VISUAL_CONFIRM_FAMS;
+	uint8_t visual_confirm_enabled;
 
 	if (dc == NULL)
 		return false;
 
+	visual_confirm_enabled = dc->debug.visual_confirm == VISUAL_CONFIRM_FAMS;
+
 	// Format command.
 	cmd.fw_assisted_mclk_switch.header.type = DMUB_CMD__FW_ASSISTED_MCLK_SWITCH;
 	cmd.fw_assisted_mclk_switch.header.sub_type = DMUB_CMD__FAMS_SETUP_FW_CTRL;
-- 
2.35.1

[PATCH AUTOSEL 6.0 13/44] drm/amd/display: Fix variable dereferenced before check

[Sasha Levin]

From: sunliming <sunliming@kylinos.cn>

[ Upstream commit 45a92f45f4578ff89da7dc5ef50bab4ef870f3b7 ]

Fixes the following smatch warning:

drivers/gpu/drm/amd/amdgpu/../display/dc/dc_dmub_srv.c:311 dc_dmub_srv_p_state_delegate()
warn: variable dereferenced before check 'dc' (see line 309)

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: sunliming <sunliming@kylinos.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
index 52a61b3e5a8b..2e243b70747f 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
+++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
@@ -323,11 +323,13 @@ bool dc_dmub_srv_p_state_delegate(struct dc *dc, bool should_manage_pstate, stru
 	struct dmub_cmd_fw_assisted_mclk_switch_config *config_data = &cmd.fw_assisted_mclk_switch.config_data;
 	int i = 0;
 	int ramp_up_num_steps = 1; // TODO: Ramp is currently disabled. Reenable it.
-	uint8_t visual_confirm_enabled = dc->debug.visual_confirm == VISUAL_CONFIRM_FAMS;
+	uint8_t visual_confirm_enabled;
 
 	if (dc == NULL)
 		return false;
 
+	visual_confirm_enabled = dc->debug.visual_confirm == VISUAL_CONFIRM_FAMS;
+
 	// Format command.
 	cmd.fw_assisted_mclk_switch.header.type = DMUB_CMD__FW_ASSISTED_MCLK_SWITCH;
 	cmd.fw_assisted_mclk_switch.header.sub_type = DMUB_CMD__FAMS_SETUP_FW_CTRL;
-- 
2.35.1

[PATCH AUTOSEL 6.0 13/44] drm/amd/display: Fix variable dereferenced before check

[Sasha Levin]

From: sunliming <sunliming@kylinos.cn>

[ Upstream commit 45a92f45f4578ff89da7dc5ef50bab4ef870f3b7 ]

Fixes the following smatch warning:

drivers/gpu/drm/amd/amdgpu/../display/dc/dc_dmub_srv.c:311 dc_dmub_srv_p_state_delegate()
warn: variable dereferenced before check 'dc' (see line 309)

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: sunliming <sunliming@kylinos.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
index 52a61b3e5a8b..2e243b70747f 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
+++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
@@ -323,11 +323,13 @@ bool dc_dmub_srv_p_state_delegate(struct dc *dc, bool should_manage_pstate, stru
 	struct dmub_cmd_fw_assisted_mclk_switch_config *config_data = &cmd.fw_assisted_mclk_switch.config_data;
 	int i = 0;
 	int ramp_up_num_steps = 1; // TODO: Ramp is currently disabled. Reenable it.
-	uint8_t visual_confirm_enabled = dc->debug.visual_confirm == VISUAL_CONFIRM_FAMS;
+	uint8_t visual_confirm_enabled;
 
 	if (dc == NULL)
 		return false;
 
+	visual_confirm_enabled = dc->debug.visual_confirm == VISUAL_CONFIRM_FAMS;
+
 	// Format command.
 	cmd.fw_assisted_mclk_switch.header.type = DMUB_CMD__FW_ASSISTED_MCLK_SWITCH;
 	cmd.fw_assisted_mclk_switch.header.sub_type = DMUB_CMD__FAMS_SETUP_FW_CTRL;
-- 
2.35.1

[PATCH AUTOSEL 6.0 14/44] drm/amdgpu: Skip the program of MMMC_VM_AGP_* in SRIOV on MMHUB v3_0_0

[Sasha Levin]

From: Yifan Zha <Yifan.Zha@amd.com>

[ Upstream commit c1026c6f319724dc88fc08d9d9d35bcbdf492b42 ]

[Why]
VF should not program these registers, the value were defined in the host.

[How]
Skip writing them in SRIOV environment and program them on host side.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Yifan Zha <Yifan.Zha@amd.com>
Signed-off-by: Horace Chen <horace.chen@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c
index bc11b2de37ae..a1d26c4d80b8 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c
@@ -169,17 +169,17 @@ static void mmhub_v3_0_init_system_aperture_regs(struct amdgpu_device *adev)
 	uint64_t value;
 	uint32_t tmp;
 
-	/* Disable AGP. */
-	WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BASE, 0);
-	WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_TOP, 0);
-	WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BOT, 0x00FFFFFF);
-
 	if (!amdgpu_sriov_vf(adev)) {
 		/*
 		 * the new L1 policy will block SRIOV guest from writing
 		 * these regs, and they will be programed at host.
 		 * so skip programing these regs.
 		 */
+		/* Disable AGP. */
+		WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BASE, 0);
+		WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_TOP, 0);
+		WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BOT, 0x00FFFFFF);
+
 		/* Program the system aperture low logical page number. */
 		WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_LOW_ADDR,
 			     adev->gmc.vram_start >> 18);
-- 
2.35.1

[PATCH AUTOSEL 6.0 14/44] drm/amdgpu: Skip the program of MMMC_VM_AGP_* in SRIOV on MMHUB v3_0_0

[Sasha Levin]

From: Yifan Zha <Yifan.Zha@amd.com>

[ Upstream commit c1026c6f319724dc88fc08d9d9d35bcbdf492b42 ]

[Why]
VF should not program these registers, the value were defined in the host.

[How]
Skip writing them in SRIOV environment and program them on host side.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Yifan Zha <Yifan.Zha@amd.com>
Signed-off-by: Horace Chen <horace.chen@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c
index bc11b2de37ae..a1d26c4d80b8 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c
@@ -169,17 +169,17 @@ static void mmhub_v3_0_init_system_aperture_regs(struct amdgpu_device *adev)
 	uint64_t value;
 	uint32_t tmp;
 
-	/* Disable AGP. */
-	WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BASE, 0);
-	WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_TOP, 0);
-	WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BOT, 0x00FFFFFF);
-
 	if (!amdgpu_sriov_vf(adev)) {
 		/*
 		 * the new L1 policy will block SRIOV guest from writing
 		 * these regs, and they will be programed at host.
 		 * so skip programing these regs.
 		 */
+		/* Disable AGP. */
+		WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BASE, 0);
+		WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_TOP, 0);
+		WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BOT, 0x00FFFFFF);
+
 		/* Program the system aperture low logical page number. */
 		WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_LOW_ADDR,
 			     adev->gmc.vram_start >> 18);
-- 
2.35.1

[PATCH AUTOSEL 6.0 14/44] drm/amdgpu: Skip the program of MMMC_VM_AGP_* in SRIOV on MMHUB v3_0_0

[Sasha Levin]

From: Yifan Zha <Yifan.Zha@amd.com>

[ Upstream commit c1026c6f319724dc88fc08d9d9d35bcbdf492b42 ]

[Why]
VF should not program these registers, the value were defined in the host.

[How]
Skip writing them in SRIOV environment and program them on host side.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Yifan Zha <Yifan.Zha@amd.com>
Signed-off-by: Horace Chen <horace.chen@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c
index bc11b2de37ae..a1d26c4d80b8 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c
@@ -169,17 +169,17 @@ static void mmhub_v3_0_init_system_aperture_regs(struct amdgpu_device *adev)
 	uint64_t value;
 	uint32_t tmp;
 
-	/* Disable AGP. */
-	WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BASE, 0);
-	WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_TOP, 0);
-	WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BOT, 0x00FFFFFF);
-
 	if (!amdgpu_sriov_vf(adev)) {
 		/*
 		 * the new L1 policy will block SRIOV guest from writing
 		 * these regs, and they will be programed at host.
 		 * so skip programing these regs.
 		 */
+		/* Disable AGP. */
+		WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BASE, 0);
+		WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_TOP, 0);
+		WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BOT, 0x00FFFFFF);
+
 		/* Program the system aperture low logical page number. */
 		WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_LOW_ADDR,
 			     adev->gmc.vram_start >> 18);
-- 
2.35.1

[PATCH AUTOSEL 6.0 15/44] drm/admgpu: Skip CG/PG on SOC21 under SRIOV VF

[Sasha Levin]

From: Yifan Zha <Yifan.Zha@amd.com>

[ Upstream commit 828418259254863e0af5805bd712284e2bd88e3b ]

[Why]
There is no CG(Clock Gating)/PG(Power Gating) requirement on SRIOV VF.
For multi VF, VF should not enable any CG/PG features.
For one VF, PF will program CG/PG related registers.

[How]
Do not set any cg/pg flag bit at early init under sriov.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Yifan Zha <Yifan.Zha@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/soc21.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/soc21.c b/drivers/gpu/drm/amd/amdgpu/soc21.c
index 6e564b549b9f..224fd7effd5c 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc21.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc21.c
@@ -583,6 +583,10 @@ static int soc21_common_early_init(void *handle)
 			AMD_PG_SUPPORT_JPEG |
 			AMD_PG_SUPPORT_ATHUB |
 			AMD_PG_SUPPORT_MMHUB;
+		if (amdgpu_sriov_vf(adev)) {
+			adev->cg_flags = 0;
+			adev->pg_flags = 0;
+		}
 		adev->external_rev_id = adev->rev_id + 0x1; // TODO: need update
 		break;
 	case IP_VERSION(11, 0, 2):
-- 
2.35.1

[PATCH AUTOSEL 6.0 15/44] drm/admgpu: Skip CG/PG on SOC21 under SRIOV VF

[Sasha Levin]

From: Yifan Zha <Yifan.Zha@amd.com>

[ Upstream commit 828418259254863e0af5805bd712284e2bd88e3b ]

[Why]
There is no CG(Clock Gating)/PG(Power Gating) requirement on SRIOV VF.
For multi VF, VF should not enable any CG/PG features.
For one VF, PF will program CG/PG related registers.

[How]
Do not set any cg/pg flag bit at early init under sriov.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Yifan Zha <Yifan.Zha@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/soc21.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/soc21.c b/drivers/gpu/drm/amd/amdgpu/soc21.c
index 6e564b549b9f..224fd7effd5c 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc21.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc21.c
@@ -583,6 +583,10 @@ static int soc21_common_early_init(void *handle)
 			AMD_PG_SUPPORT_JPEG |
 			AMD_PG_SUPPORT_ATHUB |
 			AMD_PG_SUPPORT_MMHUB;
+		if (amdgpu_sriov_vf(adev)) {
+			adev->cg_flags = 0;
+			adev->pg_flags = 0;
+		}
 		adev->external_rev_id = adev->rev_id + 0x1; // TODO: need update
 		break;
 	case IP_VERSION(11, 0, 2):
-- 
2.35.1

[PATCH AUTOSEL 6.0 15/44] drm/admgpu: Skip CG/PG on SOC21 under SRIOV VF

[Sasha Levin]

From: Yifan Zha <Yifan.Zha@amd.com>

[ Upstream commit 828418259254863e0af5805bd712284e2bd88e3b ]

[Why]
There is no CG(Clock Gating)/PG(Power Gating) requirement on SRIOV VF.
For multi VF, VF should not enable any CG/PG features.
For one VF, PF will program CG/PG related registers.

[How]
Do not set any cg/pg flag bit at early init under sriov.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Yifan Zha <Yifan.Zha@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/soc21.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/soc21.c b/drivers/gpu/drm/amd/amdgpu/soc21.c
index 6e564b549b9f..224fd7effd5c 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc21.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc21.c
@@ -583,6 +583,10 @@ static int soc21_common_early_init(void *handle)
 			AMD_PG_SUPPORT_JPEG |
 			AMD_PG_SUPPORT_ATHUB |
 			AMD_PG_SUPPORT_MMHUB;
+		if (amdgpu_sriov_vf(adev)) {
+			adev->cg_flags = 0;
+			adev->pg_flags = 0;
+		}
 		adev->external_rev_id = adev->rev_id + 0x1; // TODO: need update
 		break;
 	case IP_VERSION(11, 0, 2):
-- 
2.35.1

[PATCH AUTOSEL 6.0 16/44] drm: hide unregistered connectors from GETCONNECTOR IOCTL

[Sasha Levin]

From: Simon Ser <contact@emersion.fr>

[ Upstream commit 981f09295687f856d5345e19c7084aca481c1395 ]

When registering a connector, the kernel sends a hotplug uevent in
drm_connector_register(). When unregistering a connector, drivers
are expected to send a uevent as well. However, user-space has no way
to figure out that the connector isn't registered anymore: it'll still
be reported in GETCONNECTOR IOCTLs.

The documentation for DRM_CONNECTOR_UNREGISTERED states:

> The connector […] has since been unregistered and removed from
> userspace, or the connector was unregistered before it had a chance
> to be exposed to userspace

Signed-off-by: Simon Ser <contact@emersion.fr>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220801133754.461037-1-contact@emersion.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_mode_config.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/drm_mode_config.c b/drivers/gpu/drm/drm_mode_config.c
index 59b34f07cfce..7f118c4821a6 100644
--- a/drivers/gpu/drm/drm_mode_config.c
+++ b/drivers/gpu/drm/drm_mode_config.c
@@ -151,6 +151,9 @@ int drm_mode_getresources(struct drm_device *dev, void *data,
 	count = 0;
 	connector_id = u64_to_user_ptr(card_res->connector_id_ptr);
 	drm_for_each_connector_iter(connector, &conn_iter) {
+		if (connector->registration_state != DRM_CONNECTOR_REGISTERED)
+			continue;
+
 		/* only expose writeback connectors if userspace understands them */
 		if (!file_priv->writeback_connectors &&
 		    (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK))
-- 
2.35.1

[PATCH AUTOSEL 6.0 16/44] drm: hide unregistered connectors from GETCONNECTOR IOCTL

[Sasha Levin]

From: Simon Ser <contact@emersion.fr>

[ Upstream commit 981f09295687f856d5345e19c7084aca481c1395 ]

When registering a connector, the kernel sends a hotplug uevent in
drm_connector_register(). When unregistering a connector, drivers
are expected to send a uevent as well. However, user-space has no way
to figure out that the connector isn't registered anymore: it'll still
be reported in GETCONNECTOR IOCTLs.

The documentation for DRM_CONNECTOR_UNREGISTERED states:

> The connector […] has since been unregistered and removed from
> userspace, or the connector was unregistered before it had a chance
> to be exposed to userspace

Signed-off-by: Simon Ser <contact@emersion.fr>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220801133754.461037-1-contact@emersion.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_mode_config.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/drm_mode_config.c b/drivers/gpu/drm/drm_mode_config.c
index 59b34f07cfce..7f118c4821a6 100644
--- a/drivers/gpu/drm/drm_mode_config.c
+++ b/drivers/gpu/drm/drm_mode_config.c
@@ -151,6 +151,9 @@ int drm_mode_getresources(struct drm_device *dev, void *data,
 	count = 0;
 	connector_id = u64_to_user_ptr(card_res->connector_id_ptr);
 	drm_for_each_connector_iter(connector, &conn_iter) {
+		if (connector->registration_state != DRM_CONNECTOR_REGISTERED)
+			continue;
+
 		/* only expose writeback connectors if userspace understands them */
 		if (!file_priv->writeback_connectors &&
 		    (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK))
-- 
2.35.1

[PATCH AUTOSEL 6.0 17/44] ALSA: usb-audio: Register card at the last interface

[Sasha Levin]

From: Takashi Iwai <tiwai@suse.de>

[ Upstream commit 6392dcd1d0c7034ccf630ec55fc9e5810ecadf3b ]

The USB-audio driver matches per interface, and as default, it
registers the card instance at the very first instance.  This can be a
problem for the devices that have multiple interfaces to be probed, as
the udev rule isn't applied properly for the later appearing
interfaces.  Although we introduced the delayed_register option and
the quirks for covering those shortcomings, it's nothing but a
workaround for specific devices.

This patch is an another attempt to fix the problem in a more generic
way.  Now the driver checks the whole USB device descriptor at the
very first time when an interface is attached to a sound card.  It
looks at each matching interface in the descriptor and remembers the
last matching one.  The snd_card_register() is invoked only when this
last interface is probed.

After this change, the quirks for the delayed registration become
superfluous, hence they are removed along with the patch.  OTOH, the
delayed_register option is still kept, as it might be useful for some
corner cases (e.g. a special driver overtakes the interface probe from
the standard driver, and the last interface probe may miss).

Link: https://lore.kernel.org/r/20220904161247.16461-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/usb/card.c     | 32 +++++++++++++++++++++++++-------
 sound/usb/quirks.c   | 42 ------------------------------------------
 sound/usb/quirks.h   |  2 --
 sound/usb/usbaudio.h |  1 +
 4 files changed, 26 insertions(+), 51 deletions(-)

diff --git a/sound/usb/card.c b/sound/usb/card.c
index 706d249a9ad6..3aea241435fb 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -690,7 +690,7 @@ static bool get_alias_id(struct usb_device *dev, unsigned int *id)
 	return false;
 }
 
-static bool check_delayed_register_option(struct snd_usb_audio *chip, int iface)
+static int check_delayed_register_option(struct snd_usb_audio *chip)
 {
 	int i;
 	unsigned int id, inum;
@@ -699,14 +699,31 @@ static bool check_delayed_register_option(struct snd_usb_audio *chip, int iface)
 		if (delayed_register[i] &&
 		    sscanf(delayed_register[i], "%x:%x", &id, &inum) == 2 &&
 		    id == chip->usb_id)
-			return iface < inum;
+			return inum;
 	}
 
-	return false;
+	return -1;
 }
 
 static const struct usb_device_id usb_audio_ids[]; /* defined below */
 
+/* look for the last interface that matches with our ids and remember it */
+static void find_last_interface(struct snd_usb_audio *chip)
+{
+	struct usb_host_config *config = chip->dev->actconfig;
+	struct usb_interface *intf;
+	int i;
+
+	if (!config)
+		return;
+	for (i = 0; i < config->desc.bNumInterfaces; i++) {
+		intf = config->interface[i];
+		if (usb_match_id(intf, usb_audio_ids))
+			chip->last_iface = intf->altsetting[0].desc.bInterfaceNumber;
+	}
+	usb_audio_dbg(chip, "Found last interface = %d\n", chip->last_iface);
+}
+
 /* look for the corresponding quirk */
 static const struct snd_usb_audio_quirk *
 get_alias_quirk(struct usb_device *dev, unsigned int id)
@@ -813,6 +830,7 @@ static int usb_audio_probe(struct usb_interface *intf,
 			err = -ENODEV;
 			goto __error;
 		}
+		find_last_interface(chip);
 	}
 
 	if (chip->num_interfaces >= MAX_CARD_INTERFACES) {
@@ -862,11 +880,11 @@ static int usb_audio_probe(struct usb_interface *intf,
 		chip->need_delayed_register = false; /* clear again */
 	}
 
-	/* we are allowed to call snd_card_register() many times, but first
-	 * check to see if a device needs to skip it or do anything special
+	/* register card if we reach to the last interface or to the specified
+	 * one given via option
 	 */
-	if (!snd_usb_registration_quirk(chip, ifnum) &&
-	    !check_delayed_register_option(chip, ifnum)) {
+	if (check_delayed_register_option(chip) == ifnum ||
+	    chip->last_iface == ifnum) {
 		err = snd_card_register(chip->card);
 		if (err < 0)
 			goto __error;
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 194c75c45628..eadac586bcc8 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -2030,48 +2030,6 @@ void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip,
 	}
 }
 
-/*
- * registration quirk:
- * the registration is skipped if a device matches with the given ID,
- * unless the interface reaches to the defined one.  This is for delaying
- * the registration until the last known interface, so that the card and
- * devices appear at the same time.
- */
-
-struct registration_quirk {
-	unsigned int usb_id;	/* composed via USB_ID() */
-	unsigned int interface;	/* the interface to trigger register */
-};
-
-#define REG_QUIRK_ENTRY(vendor, product, iface) \
-	{ .usb_id = USB_ID(vendor, product), .interface = (iface) }
-
-static const struct registration_quirk registration_quirks[] = {
-	REG_QUIRK_ENTRY(0x0951, 0x16d8, 2),	/* Kingston HyperX AMP */
-	REG_QUIRK_ENTRY(0x0951, 0x16ed, 2),	/* Kingston HyperX Cloud Alpha S */
-	REG_QUIRK_ENTRY(0x0951, 0x16ea, 2),	/* Kingston HyperX Cloud Flight S */
-	REG_QUIRK_ENTRY(0x0ecb, 0x1f46, 2),	/* JBL Quantum 600 */
-	REG_QUIRK_ENTRY(0x0ecb, 0x1f47, 2),	/* JBL Quantum 800 */
-	REG_QUIRK_ENTRY(0x0ecb, 0x1f4c, 2),	/* JBL Quantum 400 */
-	REG_QUIRK_ENTRY(0x0ecb, 0x2039, 2),	/* JBL Quantum 400 */
-	REG_QUIRK_ENTRY(0x0ecb, 0x203c, 2),	/* JBL Quantum 600 */
-	REG_QUIRK_ENTRY(0x0ecb, 0x203e, 2),	/* JBL Quantum 800 */
-	{ 0 }					/* terminator */
-};
-
-/* return true if skipping registration */
-bool snd_usb_registration_quirk(struct snd_usb_audio *chip, int iface)
-{
-	const struct registration_quirk *q;
-
-	for (q = registration_quirks; q->usb_id; q++)
-		if (chip->usb_id == q->usb_id)
-			return iface < q->interface;
-
-	/* Register as normal */
-	return false;
-}
-
 /*
  * driver behavior quirk flags
  */
diff --git a/sound/usb/quirks.h b/sound/usb/quirks.h
index 31abb7cb01a5..f9bfd5ac7bab 100644
--- a/sound/usb/quirks.h
+++ b/sound/usb/quirks.h
@@ -48,8 +48,6 @@ void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip,
 					  struct audioformat *fp,
 					  int stream);
 
-bool snd_usb_registration_quirk(struct snd_usb_audio *chip, int iface);
-
 void snd_usb_init_quirk_flags(struct snd_usb_audio *chip);
 
 #endif /* __USBAUDIO_QUIRKS_H */
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
index ffbb4b0d09a0..2c6575029b1c 100644
--- a/sound/usb/usbaudio.h
+++ b/sound/usb/usbaudio.h
@@ -37,6 +37,7 @@ struct snd_usb_audio {
 	unsigned int quirk_flags;
 	unsigned int need_delayed_register:1; /* warn for delayed registration */
 	int num_interfaces;
+	int last_iface;
 	int num_suspended_intf;
 	int sample_rate_read_error;
 
-- 
2.35.1

[PATCH AUTOSEL 6.0 17/44] ALSA: usb-audio: Register card at the last interface

[Sasha Levin]

From: Takashi Iwai <tiwai@suse.de>

[ Upstream commit 6392dcd1d0c7034ccf630ec55fc9e5810ecadf3b ]

The USB-audio driver matches per interface, and as default, it
registers the card instance at the very first instance.  This can be a
problem for the devices that have multiple interfaces to be probed, as
the udev rule isn't applied properly for the later appearing
interfaces.  Although we introduced the delayed_register option and
the quirks for covering those shortcomings, it's nothing but a
workaround for specific devices.

This patch is an another attempt to fix the problem in a more generic
way.  Now the driver checks the whole USB device descriptor at the
very first time when an interface is attached to a sound card.  It
looks at each matching interface in the descriptor and remembers the
last matching one.  The snd_card_register() is invoked only when this
last interface is probed.

After this change, the quirks for the delayed registration become
superfluous, hence they are removed along with the patch.  OTOH, the
delayed_register option is still kept, as it might be useful for some
corner cases (e.g. a special driver overtakes the interface probe from
the standard driver, and the last interface probe may miss).

Link: https://lore.kernel.org/r/20220904161247.16461-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/usb/card.c     | 32 +++++++++++++++++++++++++-------
 sound/usb/quirks.c   | 42 ------------------------------------------
 sound/usb/quirks.h   |  2 --
 sound/usb/usbaudio.h |  1 +
 4 files changed, 26 insertions(+), 51 deletions(-)

diff --git a/sound/usb/card.c b/sound/usb/card.c
index 706d249a9ad6..3aea241435fb 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -690,7 +690,7 @@ static bool get_alias_id(struct usb_device *dev, unsigned int *id)
 	return false;
 }
 
-static bool check_delayed_register_option(struct snd_usb_audio *chip, int iface)
+static int check_delayed_register_option(struct snd_usb_audio *chip)
 {
 	int i;
 	unsigned int id, inum;
@@ -699,14 +699,31 @@ static bool check_delayed_register_option(struct snd_usb_audio *chip, int iface)
 		if (delayed_register[i] &&
 		    sscanf(delayed_register[i], "%x:%x", &id, &inum) == 2 &&
 		    id == chip->usb_id)
-			return iface < inum;
+			return inum;
 	}
 
-	return false;
+	return -1;
 }
 
 static const struct usb_device_id usb_audio_ids[]; /* defined below */
 
+/* look for the last interface that matches with our ids and remember it */
+static void find_last_interface(struct snd_usb_audio *chip)
+{
+	struct usb_host_config *config = chip->dev->actconfig;
+	struct usb_interface *intf;
+	int i;
+
+	if (!config)
+		return;
+	for (i = 0; i < config->desc.bNumInterfaces; i++) {
+		intf = config->interface[i];
+		if (usb_match_id(intf, usb_audio_ids))
+			chip->last_iface = intf->altsetting[0].desc.bInterfaceNumber;
+	}
+	usb_audio_dbg(chip, "Found last interface = %d\n", chip->last_iface);
+}
+
 /* look for the corresponding quirk */
 static const struct snd_usb_audio_quirk *
 get_alias_quirk(struct usb_device *dev, unsigned int id)
@@ -813,6 +830,7 @@ static int usb_audio_probe(struct usb_interface *intf,
 			err = -ENODEV;
 			goto __error;
 		}
+		find_last_interface(chip);
 	}
 
 	if (chip->num_interfaces >= MAX_CARD_INTERFACES) {
@@ -862,11 +880,11 @@ static int usb_audio_probe(struct usb_interface *intf,
 		chip->need_delayed_register = false; /* clear again */
 	}
 
-	/* we are allowed to call snd_card_register() many times, but first
-	 * check to see if a device needs to skip it or do anything special
+	/* register card if we reach to the last interface or to the specified
+	 * one given via option
 	 */
-	if (!snd_usb_registration_quirk(chip, ifnum) &&
-	    !check_delayed_register_option(chip, ifnum)) {
+	if (check_delayed_register_option(chip) == ifnum ||
+	    chip->last_iface == ifnum) {
 		err = snd_card_register(chip->card);
 		if (err < 0)
 			goto __error;
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 194c75c45628..eadac586bcc8 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -2030,48 +2030,6 @@ void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip,
 	}
 }
 
-/*
- * registration quirk:
- * the registration is skipped if a device matches with the given ID,
- * unless the interface reaches to the defined one.  This is for delaying
- * the registration until the last known interface, so that the card and
- * devices appear at the same time.
- */
-
-struct registration_quirk {
-	unsigned int usb_id;	/* composed via USB_ID() */
-	unsigned int interface;	/* the interface to trigger register */
-};
-
-#define REG_QUIRK_ENTRY(vendor, product, iface) \
-	{ .usb_id = USB_ID(vendor, product), .interface = (iface) }
-
-static const struct registration_quirk registration_quirks[] = {
-	REG_QUIRK_ENTRY(0x0951, 0x16d8, 2),	/* Kingston HyperX AMP */
-	REG_QUIRK_ENTRY(0x0951, 0x16ed, 2),	/* Kingston HyperX Cloud Alpha S */
-	REG_QUIRK_ENTRY(0x0951, 0x16ea, 2),	/* Kingston HyperX Cloud Flight S */
-	REG_QUIRK_ENTRY(0x0ecb, 0x1f46, 2),	/* JBL Quantum 600 */
-	REG_QUIRK_ENTRY(0x0ecb, 0x1f47, 2),	/* JBL Quantum 800 */
-	REG_QUIRK_ENTRY(0x0ecb, 0x1f4c, 2),	/* JBL Quantum 400 */
-	REG_QUIRK_ENTRY(0x0ecb, 0x2039, 2),	/* JBL Quantum 400 */
-	REG_QUIRK_ENTRY(0x0ecb, 0x203c, 2),	/* JBL Quantum 600 */
-	REG_QUIRK_ENTRY(0x0ecb, 0x203e, 2),	/* JBL Quantum 800 */
-	{ 0 }					/* terminator */
-};
-
-/* return true if skipping registration */
-bool snd_usb_registration_quirk(struct snd_usb_audio *chip, int iface)
-{
-	const struct registration_quirk *q;
-
-	for (q = registration_quirks; q->usb_id; q++)
-		if (chip->usb_id == q->usb_id)
-			return iface < q->interface;
-
-	/* Register as normal */
-	return false;
-}
-
 /*
  * driver behavior quirk flags
  */
diff --git a/sound/usb/quirks.h b/sound/usb/quirks.h
index 31abb7cb01a5..f9bfd5ac7bab 100644
--- a/sound/usb/quirks.h
+++ b/sound/usb/quirks.h
@@ -48,8 +48,6 @@ void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip,
 					  struct audioformat *fp,
 					  int stream);
 
-bool snd_usb_registration_quirk(struct snd_usb_audio *chip, int iface);
-
 void snd_usb_init_quirk_flags(struct snd_usb_audio *chip);
 
 #endif /* __USBAUDIO_QUIRKS_H */
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
index ffbb4b0d09a0..2c6575029b1c 100644
--- a/sound/usb/usbaudio.h
+++ b/sound/usb/usbaudio.h
@@ -37,6 +37,7 @@ struct snd_usb_audio {
 	unsigned int quirk_flags;
 	unsigned int need_delayed_register:1; /* warn for delayed registration */
 	int num_interfaces;
+	int last_iface;
 	int num_suspended_intf;
 	int sample_rate_read_error;
 
-- 
2.35.1

[PATCH AUTOSEL 6.0 18/44] drm/vc4: vec: Fix timings for VEC modes

[Sasha Levin]

From: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>

[ Upstream commit 30d7565be96b3946c18a1ce3fd538f7946839092 ]

This commit fixes vertical timings of the VEC (composite output) modes
to accurately represent the 525-line ("NTSC") and 625-line ("PAL") ITU-R
standards.

Previous timings were actually defined as 502 and 601 lines, resulting
in non-standard 62.69 Hz and 52 Hz signals being generated,
respectively.

Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220728-rpi-analog-tv-properties-v2-28-459522d653a7@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/vc4/vc4_vec.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_vec.c b/drivers/gpu/drm/vc4/vc4_vec.c
index 11fc3d6f66b1..4e2250b8fa23 100644
--- a/drivers/gpu/drm/vc4/vc4_vec.c
+++ b/drivers/gpu/drm/vc4/vc4_vec.c
@@ -256,7 +256,7 @@ static void vc4_vec_ntsc_j_mode_set(struct vc4_vec *vec)
 static const struct drm_display_mode ntsc_mode = {
 	DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 13500,
 		 720, 720 + 14, 720 + 14 + 64, 720 + 14 + 64 + 60, 0,
-		 480, 480 + 3, 480 + 3 + 3, 480 + 3 + 3 + 16, 0,
+		 480, 480 + 7, 480 + 7 + 6, 525, 0,
 		 DRM_MODE_FLAG_INTERLACE)
 };
 
@@ -278,7 +278,7 @@ static void vc4_vec_pal_m_mode_set(struct vc4_vec *vec)
 static const struct drm_display_mode pal_mode = {
 	DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 13500,
 		 720, 720 + 20, 720 + 20 + 64, 720 + 20 + 64 + 60, 0,
-		 576, 576 + 2, 576 + 2 + 3, 576 + 2 + 3 + 20, 0,
+		 576, 576 + 4, 576 + 4 + 6, 625, 0,
 		 DRM_MODE_FLAG_INTERLACE)
 };
 
-- 
2.35.1

[PATCH AUTOSEL 6.0 18/44] drm/vc4: vec: Fix timings for VEC modes

[Sasha Levin]

From: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>

[ Upstream commit 30d7565be96b3946c18a1ce3fd538f7946839092 ]

This commit fixes vertical timings of the VEC (composite output) modes
to accurately represent the 525-line ("NTSC") and 625-line ("PAL") ITU-R
standards.

Previous timings were actually defined as 502 and 601 lines, resulting
in non-standard 62.69 Hz and 52 Hz signals being generated,
respectively.

Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220728-rpi-analog-tv-properties-v2-28-459522d653a7@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/vc4/vc4_vec.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_vec.c b/drivers/gpu/drm/vc4/vc4_vec.c
index 11fc3d6f66b1..4e2250b8fa23 100644
--- a/drivers/gpu/drm/vc4/vc4_vec.c
+++ b/drivers/gpu/drm/vc4/vc4_vec.c
@@ -256,7 +256,7 @@ static void vc4_vec_ntsc_j_mode_set(struct vc4_vec *vec)
 static const struct drm_display_mode ntsc_mode = {
 	DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 13500,
 		 720, 720 + 14, 720 + 14 + 64, 720 + 14 + 64 + 60, 0,
-		 480, 480 + 3, 480 + 3 + 3, 480 + 3 + 3 + 16, 0,
+		 480, 480 + 7, 480 + 7 + 6, 525, 0,
 		 DRM_MODE_FLAG_INTERLACE)
 };
 
@@ -278,7 +278,7 @@ static void vc4_vec_pal_m_mode_set(struct vc4_vec *vec)
 static const struct drm_display_mode pal_mode = {
 	DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 13500,
 		 720, 720 + 20, 720 + 20 + 64, 720 + 20 + 64 + 60, 0,
-		 576, 576 + 2, 576 + 2 + 3, 576 + 2 + 3 + 20, 0,
+		 576, 576 + 4, 576 + 4 + 6, 625, 0,
 		 DRM_MODE_FLAG_INTERLACE)
 };
 
-- 
2.35.1

[PATCH AUTOSEL 6.0 19/44] ACPI: video: Change disable_backlight_sysfs_if quirks to acpi_backlight=native

[Sasha Levin]

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit c5b94f5b7819348c59f9949b2b75c341a114cdd4 ]

Some Toshibas have a broken acpi-video interface for brightness control
and need a special firmware call on resume to turn the panel back on.
So far these have been using the disable_backlight_sysfs_if workaround
to deal with this.

The recent x86/acpi backlight refactoring has broken this workaround:
1. This workaround relies on acpi_video_get_backlight_type() returning
   acpi_video so that the acpi_video code actually runs; and
2. this relies on the actual native GPU driver to offer the sysfs
   backlight interface to userspace.

After the refactor this breaks since the native driver will no
longer register its backlight-device if acpi_video_get_backlight_type()
does not return native and making it return native breaks 1.

Keeping the acpi_video backlight handling on resume active, while not
using it to set the brightness, is necessary because it does a _BCM
call on resume which is necessary to turn the panel back on on resume.

Looking at the DSDT shows that this _BCM call results in a Toshiba
HCI_SET HCI_LCD_BRIGHTNESS call, which turns the panel back on.

This kind of special vendor specific handling really belongs in
the vendor specific acpi driver. An earlier patch in this series
modifies toshiba_acpi to make the necessary HCI_SET call on resume
on affected models.

With toshiba_acpi taking care of the HCI_SET call on resume,
the acpi_video code no longer needs to call _BCM on resume.

So instead of using the (now broken) disable_backlight_sysfs_if
workaround, simply setting acpi_backlight=native to disable
the broken apci-video interface is sufficient fix things now.

After this there are no more users of the disable_backlight_sysfs_if
flag and as discussed above the flag also no longer works as intended,
so remove the disable_backlight_sysfs_if flag entirely.

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Arvid Norlander <lkml@vorpal.se>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/acpi_video.c   | 48 -------------------------------------
 drivers/acpi/video_detect.c | 35 +++++++++++++++++++++++++++
 2 files changed, 35 insertions(+), 48 deletions(-)

diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c
index 5cbe2196176d..8da63f146fe1 100644
--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -47,9 +47,6 @@ module_param(brightness_switch_enabled, bool, 0644);
 static bool allow_duplicates;
 module_param(allow_duplicates, bool, 0644);
 
-static int disable_backlight_sysfs_if = -1;
-module_param(disable_backlight_sysfs_if, int, 0444);
-
 #define REPORT_OUTPUT_KEY_EVENTS		0x01
 #define REPORT_BRIGHTNESS_KEY_EVENTS		0x02
 static int report_key_events = -1;
@@ -382,14 +379,6 @@ static int video_set_bqc_offset(const struct dmi_system_id *d)
 	return 0;
 }
 
-static int video_disable_backlight_sysfs_if(
-	const struct dmi_system_id *d)
-{
-	if (disable_backlight_sysfs_if == -1)
-		disable_backlight_sysfs_if = 1;
-	return 0;
-}
-
 static int video_set_device_id_scheme(const struct dmi_system_id *d)
 {
 	device_id_scheme = true;
@@ -462,40 +451,6 @@ static const struct dmi_system_id video_dmi_table[] = {
 		},
 	},
 
-	/*
-	 * Some machines have a broken acpi-video interface for brightness
-	 * control, but still need an acpi_video_device_lcd_set_level() call
-	 * on resume to turn the backlight power on.  We Enable backlight
-	 * control on these systems, but do not register a backlight sysfs
-	 * as brightness control does not work.
-	 */
-	{
-	 /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
-	 .callback = video_disable_backlight_sysfs_if,
-	 .ident = "Toshiba Portege R700",
-	 .matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"),
-		},
-	},
-	{
-	 /* https://bugs.freedesktop.org/show_bug.cgi?id=82634 */
-	 .callback = video_disable_backlight_sysfs_if,
-	 .ident = "Toshiba Portege R830",
-	 .matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R830"),
-		},
-	},
-	{
-	 /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
-	 .callback = video_disable_backlight_sysfs_if,
-	 .ident = "Toshiba Satellite R830",
-	 .matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE R830"),
-		},
-	},
 	/*
 	 * Some machine's _DOD IDs don't have bit 31(Device ID Scheme) set
 	 * but the IDs actually follow the Device ID Scheme.
@@ -1758,9 +1713,6 @@ static void acpi_video_dev_register_backlight(struct acpi_video_device *device)
 	if (result)
 		return;
 
-	if (disable_backlight_sysfs_if > 0)
-		return;
-
 	name = kasprintf(GFP_KERNEL, "acpi_video%d", count);
 	if (!name)
 		return;
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 5d7f38016a24..c370de174fd3 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -514,6 +514,41 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
 		DMI_MATCH(DMI_BOARD_NAME, "PF5LUXG"),
 		},
 	},
+	/*
+	 * These Toshibas have a broken acpi-video interface for brightness
+	 * control. They also have an issue where the panel is off after
+	 * suspend until a special firmware call is made to turn it back
+	 * on. This is handled by the toshiba_acpi kernel module, so that
+	 * module must be enabled for these models to work correctly.
+	 */
+	{
+	 /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
+	 .callback = video_detect_force_native,
+	 /* Toshiba Portégé R700 */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"),
+		},
+	},
+	{
+	 /* Portégé: https://bugs.freedesktop.org/show_bug.cgi?id=82634 */
+	 /* Satellite: https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
+	 .callback = video_detect_force_native,
+	 /* Toshiba Satellite/Portégé R830 */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "R830"),
+		},
+	},
+	{
+	 .callback = video_detect_force_native,
+	 /* Toshiba Satellite/Portégé Z830 */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "Z830"),
+		},
+	},
+
 	/*
 	 * Desktops which falsely report a backlight and which our heuristics
 	 * for this do not catch.
-- 
2.35.1

[PATCH AUTOSEL 6.0 20/44] drm: panel-orientation-quirks: Add quirk for Anbernic Win600

[Sasha Levin]

From: Maya Matuszczyk <maccraft123mc@gmail.com>

[ Upstream commit 770e19076065e079a32f33eb11be2057c87f1cde ]

This device is another x86 gaming handheld, and as (hopefully) there is
only one set of DMI IDs it's using DMI_EXACT_MATCH

Signed-off-by: Maya Matuszczyk <maccraft123mc@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220803182402.1217293-1-maccraft123mc@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_panel_orientation_quirks.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index fc1728d46ac2..64b194af003c 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -128,6 +128,12 @@ static const struct dmi_system_id orientation_data[] = {
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
+	}, {	/* Anbernic Win600 */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Anbernic"),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Win600"),
+		},
+		.driver_data = (void *)&lcd720x1280_rightside_up,
 	}, {	/* Asus T100HA */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
-- 
2.35.1

[PATCH AUTOSEL 6.0 20/44] drm: panel-orientation-quirks: Add quirk for Anbernic Win600

[Sasha Levin]

From: Maya Matuszczyk <maccraft123mc@gmail.com>

[ Upstream commit 770e19076065e079a32f33eb11be2057c87f1cde ]

This device is another x86 gaming handheld, and as (hopefully) there is
only one set of DMI IDs it's using DMI_EXACT_MATCH

Signed-off-by: Maya Matuszczyk <maccraft123mc@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220803182402.1217293-1-maccraft123mc@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_panel_orientation_quirks.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index fc1728d46ac2..64b194af003c 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -128,6 +128,12 @@ static const struct dmi_system_id orientation_data[] = {
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
+	}, {	/* Anbernic Win600 */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Anbernic"),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Win600"),
+		},
+		.driver_data = (void *)&lcd720x1280_rightside_up,
 	}, {	/* Asus T100HA */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
-- 
2.35.1

[PATCH AUTOSEL 6.0 21/44] drm: panel-orientation-quirks: Add quirk for Aya Neo Air

[Sasha Levin]

From: Maya Matuszczyk <maccraft123mc@gmail.com>

[ Upstream commit e10ea7b9b90219da305a16b3c1252169715a807b ]

Yet another x86 gaming handheld.

This one has many SKUs with quite a few of DMI strings,
so let's just use a catchall, just as with Aya Neo Next.

Signed-off-by: Maya Matuszczyk <maccraft123mc@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220825191946.1678798-1-maccraft123mc@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_panel_orientation_quirks.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index 64b194af003c..8a0c0e0bb5bd 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -103,6 +103,12 @@ static const struct drm_dmi_panel_orientation_data lcd800x1280_rightside_up = {
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };
 
+static const struct drm_dmi_panel_orientation_data lcd1080x1920_leftside_up = {
+	.width = 1080,
+	.height = 1920,
+	.orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
+};
+
 static const struct drm_dmi_panel_orientation_data lcd1200x1920_rightside_up = {
 	.width = 1200,
 	.height = 1920,
@@ -158,6 +164,12 @@ static const struct dmi_system_id orientation_data[] = {
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "AYA NEO 2021"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
+	}, {	/* AYA NEO AIR */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "AYANEO"),
+		  DMI_MATCH(DMI_BOARD_NAME, "AIR"),
+		},
+		.driver_data = (void *)&lcd1080x1920_leftside_up,
 	}, {	/* AYA NEO NEXT */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AYANEO"),
-- 
2.35.1

[PATCH AUTOSEL 6.0 21/44] drm: panel-orientation-quirks: Add quirk for Aya Neo Air

[Sasha Levin]

From: Maya Matuszczyk <maccraft123mc@gmail.com>

[ Upstream commit e10ea7b9b90219da305a16b3c1252169715a807b ]

Yet another x86 gaming handheld.

This one has many SKUs with quite a few of DMI strings,
so let's just use a catchall, just as with Aya Neo Next.

Signed-off-by: Maya Matuszczyk <maccraft123mc@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220825191946.1678798-1-maccraft123mc@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_panel_orientation_quirks.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index 64b194af003c..8a0c0e0bb5bd 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -103,6 +103,12 @@ static const struct drm_dmi_panel_orientation_data lcd800x1280_rightside_up = {
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };
 
+static const struct drm_dmi_panel_orientation_data lcd1080x1920_leftside_up = {
+	.width = 1080,
+	.height = 1920,
+	.orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
+};
+
 static const struct drm_dmi_panel_orientation_data lcd1200x1920_rightside_up = {
 	.width = 1200,
 	.height = 1920,
@@ -158,6 +164,12 @@ static const struct dmi_system_id orientation_data[] = {
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "AYA NEO 2021"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
+	}, {	/* AYA NEO AIR */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "AYANEO"),
+		  DMI_MATCH(DMI_BOARD_NAME, "AIR"),
+		},
+		.driver_data = (void *)&lcd1080x1920_leftside_up,
 	}, {	/* AYA NEO NEXT */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AYANEO"),
-- 
2.35.1

[PATCH AUTOSEL 6.0 22/44] platform/chrome: cros_ec: Notify the PM of wake events during resume

[Sasha Levin]

From: Jameson Thies <jthies@google.com>

[ Upstream commit 8edd2752b0aa498b3a61f3caee8f79f7e0567fad ]

cros_ec_handle_event in the cros_ec driver can notify the PM of wake
events. When a device is suspended, cros_ec_handle_event will not check
MKBP events. Instead, received MKBP events are checked during resume by
cros_ec_report_events_during_suspend. But
cros_ec_report_events_during_suspend cannot notify the PM if received
events are wake events, causing wake events to not be reported if
received while the device is suspended.

Update cros_ec_report_events_during_suspend to notify the PM of wake
events during resume by calling pm_wakeup_event.

Signed-off-by: Jameson Thies <jthies@google.com>
Reviewed-by: Prashant Malani <pmalani@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
Link: https://lore.kernel.org/r/20220913204954.2931042-1-jthies@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/chrome/cros_ec.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/chrome/cros_ec.c b/drivers/platform/chrome/cros_ec.c
index 8aace50d446d..110df0fd4b00 100644
--- a/drivers/platform/chrome/cros_ec.c
+++ b/drivers/platform/chrome/cros_ec.c
@@ -349,10 +349,16 @@ EXPORT_SYMBOL(cros_ec_suspend);
 
 static void cros_ec_report_events_during_suspend(struct cros_ec_device *ec_dev)
 {
+	bool wake_event;
+
 	while (ec_dev->mkbp_event_supported &&
-	       cros_ec_get_next_event(ec_dev, NULL, NULL) > 0)
+	       cros_ec_get_next_event(ec_dev, &wake_event, NULL) > 0) {
 		blocking_notifier_call_chain(&ec_dev->event_notifier,
 					     1, ec_dev);
+
+		if (wake_event && device_may_wakeup(ec_dev->dev))
+			pm_wakeup_event(ec_dev->dev, 0);
+	}
 }
 
 /**
-- 
2.35.1

[PATCH AUTOSEL 6.0 23/44] platform/x86: hp-wmi: Setting thermal profile fails with 0x06

[Sasha Levin]

From: Jorge Lopez <jorge.lopez2@hp.com>

[ Upstream commit 00b1829294b7c88ecba92c661fbe6fe347b364d2 ]

Error 0x06 (invalid command parameter) is reported by hp-wmi module
when reading the current thermal profile and then proceed to set it
back. The failing condition occurs in Linux NixOS after user
configures the thermal profile to ‘quiet mode’ in Windows.  Quiet Fan
Mode is supported in Windows but was not supported in hp-wmi module.

This fix adds support for PLATFORM_PROFILE_QUIET in hp-wmi module for
HP notebooks other than HP Omen series.  Quiet thermal profile is not
supported in HP Omen series notebooks.

Signed-off-by: Jorge Lopez <jorge.lopez2@hp.com>
Link: https://lore.kernel.org/r/20220912192603.4001-1-jorge.lopez2@hp.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/hp-wmi.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index bc7020e9df9e..fc8dbbd6fc7c 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -177,7 +177,8 @@ enum hp_thermal_profile_omen_v1 {
 enum hp_thermal_profile {
 	HP_THERMAL_PROFILE_PERFORMANCE	= 0x00,
 	HP_THERMAL_PROFILE_DEFAULT		= 0x01,
-	HP_THERMAL_PROFILE_COOL			= 0x02
+	HP_THERMAL_PROFILE_COOL			= 0x02,
+	HP_THERMAL_PROFILE_QUIET		= 0x03,
 };
 
 #define IS_HWBLOCKED(x) ((x & HPWMI_POWER_FW_OR_HW) != HPWMI_POWER_FW_OR_HW)
@@ -1194,6 +1195,9 @@ static int hp_wmi_platform_profile_get(struct platform_profile_handler *pprof,
 	case HP_THERMAL_PROFILE_COOL:
 		*profile =  PLATFORM_PROFILE_COOL;
 		break;
+	case HP_THERMAL_PROFILE_QUIET:
+		*profile = PLATFORM_PROFILE_QUIET;
+		break;
 	default:
 		return -EINVAL;
 	}
@@ -1216,6 +1220,9 @@ static int hp_wmi_platform_profile_set(struct platform_profile_handler *pprof,
 	case PLATFORM_PROFILE_COOL:
 		tp =  HP_THERMAL_PROFILE_COOL;
 		break;
+	case PLATFORM_PROFILE_QUIET:
+		tp = HP_THERMAL_PROFILE_QUIET;
+		break;
 	default:
 		return -EOPNOTSUPP;
 	}
@@ -1263,6 +1270,8 @@ static int thermal_profile_setup(void)
 
 		platform_profile_handler.profile_get = hp_wmi_platform_profile_get;
 		platform_profile_handler.profile_set = hp_wmi_platform_profile_set;
+
+		set_bit(PLATFORM_PROFILE_QUIET, platform_profile_handler.choices);
 	}
 
 	set_bit(PLATFORM_PROFILE_COOL, platform_profile_handler.choices);
-- 
2.35.1

[PATCH AUTOSEL 6.0 24/44] platform/x86: msi-laptop: Change DMI match / alias strings to fix module autoloading

[Sasha Levin]

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit 2a2565272a3628e45d61625e36ef17af7af4e3de ]

On a MSI S270 with Fedora 37 x86_64 / systemd-251.4 the module does not
properly autoload.

This is likely caused by issues with how systemd-udevd handles the single
quote char (') which is part of the sys_vendor / chassis_vendor strings
on this laptop. As a workaround remove the single quote char + everything
behind it from the sys_vendor + chassis_vendor matches. This fixes
the module not autoloading.

Link: https://github.com/systemd/systemd/issues/24715
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220917210407.647432-1-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/msi-laptop.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
index 24ffc8e2d2d1..d8a94968aedc 100644
--- a/drivers/platform/x86/msi-laptop.c
+++ b/drivers/platform/x86/msi-laptop.c
@@ -596,11 +596,10 @@ static const struct dmi_system_id msi_dmi_table[] __initconst = {
 	{
 		.ident = "MSI S270",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "MICRO-STAR INT'L CO.,LTD"),
+			DMI_MATCH(DMI_SYS_VENDOR, "MICRO-STAR INT"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "MS-1013"),
 			DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
-			DMI_MATCH(DMI_CHASSIS_VENDOR,
-				  "MICRO-STAR INT'L CO.,LTD")
+			DMI_MATCH(DMI_CHASSIS_VENDOR, "MICRO-STAR INT")
 		},
 		.driver_data = &quirk_old_ec_model,
 		.callback = dmi_check_cb
@@ -633,8 +632,7 @@ static const struct dmi_system_id msi_dmi_table[] __initconst = {
 			DMI_MATCH(DMI_SYS_VENDOR, "NOTEBOOK"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "SAM2000"),
 			DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
-			DMI_MATCH(DMI_CHASSIS_VENDOR,
-				  "MICRO-STAR INT'L CO.,LTD")
+			DMI_MATCH(DMI_CHASSIS_VENDOR, "MICRO-STAR INT")
 		},
 		.driver_data = &quirk_old_ec_model,
 		.callback = dmi_check_cb
-- 
2.35.1

[PATCH AUTOSEL 6.0 25/44] ALSA: intel-dspconfig: add ES8336 support for AlderLake-PS

[Sasha Levin]

From: Muralidhar Reddy <muralidhar.reddy@intel.com>

[ Upstream commit 9db1c9fa214ef41d098633ff40a87284ca6e1870 ]

added quirks for ESS8336 for AlderLake-PS

Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Muralidhar Reddy <muralidhar.reddy@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220919114548.42769-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/hda/intel-dsp-config.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/hda/intel-dsp-config.c b/sound/hda/intel-dsp-config.c
index 5a478649f338..b9eb3208f288 100644
--- a/sound/hda/intel-dsp-config.c
+++ b/sound/hda/intel-dsp-config.c
@@ -427,6 +427,11 @@ static const struct config_entry config_table[] = {
 		.device = 0x51cd,
 	},
 	/* Alderlake-PS */
+	{
+		.flags = FLAG_SOF,
+		.device = 0x51c9,
+		.codec_hid =  &essx_83x6,
+	},
 	{
 		.flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 		.device = 0x51c9,
-- 
2.35.1

[PATCH AUTOSEL 6.0 25/44] ALSA: intel-dspconfig: add ES8336 support for AlderLake-PS

[Sasha Levin]

From: Muralidhar Reddy <muralidhar.reddy@intel.com>

[ Upstream commit 9db1c9fa214ef41d098633ff40a87284ca6e1870 ]

added quirks for ESS8336 for AlderLake-PS

Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Muralidhar Reddy <muralidhar.reddy@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220919114548.42769-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/hda/intel-dsp-config.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/hda/intel-dsp-config.c b/sound/hda/intel-dsp-config.c
index 5a478649f338..b9eb3208f288 100644
--- a/sound/hda/intel-dsp-config.c
+++ b/sound/hda/intel-dsp-config.c
@@ -427,6 +427,11 @@ static const struct config_entry config_table[] = {
 		.device = 0x51cd,
 	},
 	/* Alderlake-PS */
+	{
+		.flags = FLAG_SOF,
+		.device = 0x51c9,
+		.codec_hid =  &essx_83x6,
+	},
 	{
 		.flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 		.device = 0x51c9,
-- 
2.35.1

[PATCH AUTOSEL 6.0 26/44] ASoC: SOF: pci: Change DMI match info to support all Chrome platforms

[Sasha Levin]

From: Jairaj Arava <jairaj.arava@intel.com>

[ Upstream commit c1c1fc8103f794a10c5c15e3c17879caf4f42c8f ]

In some Chrome platforms if OEM's use their own string as SYS_VENDOR than
"Google", it leads to firmware load failure from intel/sof/community path.

Hence, changing SYS_VENDOR to PRODUCT_FAMILY in which "Google" is used
as common prefix and is supported in all Chrome platforms.

Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Chao Song <chao.song@intel.com>
Reviewed-by: Curtis Malainey <curtis@malainey.com>
Signed-off-by: Jairaj Arava <jairaj.arava@intel.com>
Signed-off-by: Curtis Malainey <cujomalainey@chromium.org>
Signed-off-by: Sathyanarayana Nujella <sathyanarayana.nujella@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220919114429.42700-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/sof/sof-pci-dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/sof/sof-pci-dev.c b/sound/soc/sof/sof-pci-dev.c
index d627092b399d..643fd1036d60 100644
--- a/sound/soc/sof/sof-pci-dev.c
+++ b/sound/soc/sof/sof-pci-dev.c
@@ -138,7 +138,7 @@ static const struct dmi_system_id community_key_platforms[] = {
 		.ident = "Google Chromebooks",
 		.callback = chromebook_use_community_key,
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Google"),
+			DMI_MATCH(DMI_PRODUCT_FAMILY, "Google"),
 		}
 	},
 	{},
-- 
2.35.1

[PATCH AUTOSEL 6.0 26/44] ASoC: SOF: pci: Change DMI match info to support all Chrome platforms

[Sasha Levin]

From: Jairaj Arava <jairaj.arava@intel.com>

[ Upstream commit c1c1fc8103f794a10c5c15e3c17879caf4f42c8f ]

In some Chrome platforms if OEM's use their own string as SYS_VENDOR than
"Google", it leads to firmware load failure from intel/sof/community path.

Hence, changing SYS_VENDOR to PRODUCT_FAMILY in which "Google" is used
as common prefix and is supported in all Chrome platforms.

Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Chao Song <chao.song@intel.com>
Reviewed-by: Curtis Malainey <curtis@malainey.com>
Signed-off-by: Jairaj Arava <jairaj.arava@intel.com>
Signed-off-by: Curtis Malainey <cujomalainey@chromium.org>
Signed-off-by: Sathyanarayana Nujella <sathyanarayana.nujella@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220919114429.42700-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/sof/sof-pci-dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/sof/sof-pci-dev.c b/sound/soc/sof/sof-pci-dev.c
index d627092b399d..643fd1036d60 100644
--- a/sound/soc/sof/sof-pci-dev.c
+++ b/sound/soc/sof/sof-pci-dev.c
@@ -138,7 +138,7 @@ static const struct dmi_system_id community_key_platforms[] = {
 		.ident = "Google Chromebooks",
 		.callback = chromebook_use_community_key,
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Google"),
+			DMI_MATCH(DMI_PRODUCT_FAMILY, "Google"),
 		}
 	},
 	{},
-- 
2.35.1

[PATCH AUTOSEL 6.0 27/44] ASoC: sunxi: sun4i-codec: set debugfs_prefix for CPU DAI component

[Sasha Levin]

From: Mikhail Rudenko <mike.rudenko@gmail.com>

[ Upstream commit 717a8ff20f32792d6a94f2883e771482c37d844b ]

At present, succesfull probing of H3 Codec results in an error

    debugfs: Directory '1c22c00.codec' with parent 'H3 Audio Codec' already present!

This is caused by a directory name conflict between codec
components. Fix it by setting debugfs_prefix for the CPU DAI
component.

Signed-off-by: Mikhail Rudenko <mike.rudenko@gmail.com>
Link: https://lore.kernel.org/r/20220913212256.151799-2-mike.rudenko@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/sunxi/sun4i-codec.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c
index 830beb38bf15..fdf3165acd70 100644
--- a/sound/soc/sunxi/sun4i-codec.c
+++ b/sound/soc/sunxi/sun4i-codec.c
@@ -1232,6 +1232,9 @@ static const struct snd_soc_component_driver sun8i_a23_codec_codec = {
 static const struct snd_soc_component_driver sun4i_codec_component = {
 	.name			= "sun4i-codec",
 	.legacy_dai_naming	= 1,
+#ifdef CONFIG_DEBUG_FS
+	.debugfs_prefix		= "cpu",
+#endif
 };
 
 #define SUN4I_CODEC_RATES	SNDRV_PCM_RATE_CONTINUOUS
-- 
2.35.1

[PATCH AUTOSEL 6.0 27/44] ASoC: sunxi: sun4i-codec: set debugfs_prefix for CPU DAI component

[Sasha Levin]

From: Mikhail Rudenko <mike.rudenko@gmail.com>

[ Upstream commit 717a8ff20f32792d6a94f2883e771482c37d844b ]

At present, succesfull probing of H3 Codec results in an error

    debugfs: Directory '1c22c00.codec' with parent 'H3 Audio Codec' already present!

This is caused by a directory name conflict between codec
components. Fix it by setting debugfs_prefix for the CPU DAI
component.

Signed-off-by: Mikhail Rudenko <mike.rudenko@gmail.com>
Link: https://lore.kernel.org/r/20220913212256.151799-2-mike.rudenko@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/sunxi/sun4i-codec.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c
index 830beb38bf15..fdf3165acd70 100644
--- a/sound/soc/sunxi/sun4i-codec.c
+++ b/sound/soc/sunxi/sun4i-codec.c
@@ -1232,6 +1232,9 @@ static const struct snd_soc_component_driver sun8i_a23_codec_codec = {
 static const struct snd_soc_component_driver sun4i_codec_component = {
 	.name			= "sun4i-codec",
 	.legacy_dai_naming	= 1,
+#ifdef CONFIG_DEBUG_FS
+	.debugfs_prefix		= "cpu",
+#endif
 };
 
 #define SUN4I_CODEC_RATES	SNDRV_PCM_RATE_CONTINUOUS
-- 
2.35.1

[PATCH AUTOSEL 6.0 27/44] ASoC: sunxi: sun4i-codec: set debugfs_prefix for CPU DAI component

[Sasha Levin]

From: Mikhail Rudenko <mike.rudenko@gmail.com>

[ Upstream commit 717a8ff20f32792d6a94f2883e771482c37d844b ]

At present, succesfull probing of H3 Codec results in an error

    debugfs: Directory '1c22c00.codec' with parent 'H3 Audio Codec' already present!

This is caused by a directory name conflict between codec
components. Fix it by setting debugfs_prefix for the CPU DAI
component.

Signed-off-by: Mikhail Rudenko <mike.rudenko@gmail.com>
Link: https://lore.kernel.org/r/20220913212256.151799-2-mike.rudenko@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/sunxi/sun4i-codec.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c
index 830beb38bf15..fdf3165acd70 100644
--- a/sound/soc/sunxi/sun4i-codec.c
+++ b/sound/soc/sunxi/sun4i-codec.c
@@ -1232,6 +1232,9 @@ static const struct snd_soc_component_driver sun8i_a23_codec_codec = {
 static const struct snd_soc_component_driver sun4i_codec_component = {
 	.name			= "sun4i-codec",
 	.legacy_dai_naming	= 1,
+#ifdef CONFIG_DEBUG_FS
+	.debugfs_prefix		= "cpu",
+#endif
 };
 
 #define SUN4I_CODEC_RATES	SNDRV_PCM_RATE_CONTINUOUS
-- 
2.35.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH AUTOSEL 6.0 28/44] ASoC: SOF: add quirk to override topology mclk_id

[Sasha Levin]

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

[ Upstream commit d136949dd8e2e309dc2f186507486b71cbe9acdb ]

Some Intel-based platforms rely on a topology file that hard-codes the
use of MCLK0. This is incorrect in 10% of the cases. Rather than
generating yet another set of topology files, this patch adds a kernel
module parameter to override the topology value.

In hindsight, we should never have allowed mclks to be specified in
topology, this is a hardware-level information that should not have
been visible in the topology.

Future patches will try to set this value automagically, e.g. by
parsing the NHLT content.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20220919115350.43104-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/sof/intel/hda.c     | 11 +++++++++++
 sound/soc/sof/ipc3-topology.c |  7 +++++++
 sound/soc/sof/sof-priv.h      |  4 ++++
 3 files changed, 22 insertions(+)

diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c
index 6d4ecbe14adf..ada2e6775749 100644
--- a/sound/soc/sof/intel/hda.c
+++ b/sound/soc/sof/intel/hda.c
@@ -376,6 +376,10 @@ static int dmic_num_override = -1;
 module_param_named(dmic_num, dmic_num_override, int, 0444);
 MODULE_PARM_DESC(dmic_num, "SOF HDA DMIC number");
 
+static int mclk_id_override = -1;
+module_param_named(mclk_id, mclk_id_override, int, 0444);
+MODULE_PARM_DESC(mclk_id, "SOF SSP mclk_id");
+
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
 static bool hda_codec_use_common_hdmi = IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI);
 module_param_named(use_common_hdmi, hda_codec_use_common_hdmi, bool, 0444);
@@ -1565,6 +1569,13 @@ struct snd_soc_acpi_mach *hda_machine_select(struct snd_sof_dev *sdev)
 
 			sof_pdata->tplg_filename = tplg_filename;
 		}
+
+		/* check if mclk_id should be modified from topology defaults */
+		if (mclk_id_override >= 0) {
+			dev_info(sdev->dev, "Overriding topology with MCLK %d from kernel_parameter\n", mclk_id_override);
+			sdev->mclk_id_override = true;
+			sdev->mclk_id_quirk = mclk_id_override;
+		}
 	}
 
 	/*
diff --git a/sound/soc/sof/ipc3-topology.c b/sound/soc/sof/ipc3-topology.c
index 65923e7a5976..a39b43850f0e 100644
--- a/sound/soc/sof/ipc3-topology.c
+++ b/sound/soc/sof/ipc3-topology.c
@@ -1249,6 +1249,7 @@ static int sof_link_afe_load(struct snd_soc_component *scomp, struct snd_sof_dai
 static int sof_link_ssp_load(struct snd_soc_component *scomp, struct snd_sof_dai_link *slink,
 			     struct sof_ipc_dai_config *config, struct snd_sof_dai *dai)
 {
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
 	struct snd_soc_tplg_hw_config *hw_config = slink->hw_configs;
 	struct sof_dai_private_data *private = dai->private;
 	u32 size = sizeof(*config);
@@ -1273,6 +1274,12 @@ static int sof_link_ssp_load(struct snd_soc_component *scomp, struct snd_sof_dai
 
 		config[i].hdr.size = size;
 
+		if (sdev->mclk_id_override) {
+			dev_dbg(scomp->dev, "tplg: overriding topology mclk_id %d by quirk %d\n",
+				config[i].ssp.mclk_id, sdev->mclk_id_quirk);
+			config[i].ssp.mclk_id = sdev->mclk_id_quirk;
+		}
+
 		/* copy differentiating hw configs to ipc structs */
 		config[i].ssp.mclk_rate = le32_to_cpu(hw_config[i].mclk_rate);
 		config[i].ssp.bclk_rate = le32_to_cpu(hw_config[i].bclk_rate);
diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h
index 823583086279..828c74bb75f8 100644
--- a/sound/soc/sof/sof-priv.h
+++ b/sound/soc/sof/sof-priv.h
@@ -594,6 +594,10 @@ struct snd_sof_dev {
 	/* to protect the ipc_rx_handler_list  and  dsp_state_handler_list list */
 	struct mutex client_event_handler_mutex;
 
+	/* quirks to override topology values */
+	bool mclk_id_override;
+	u16  mclk_id_quirk; /* same size as in IPC3 definitions */
+
 	void *private;			/* core does not touch this */
 };
 
-- 
2.35.1

[PATCH AUTOSEL 6.0 28/44] ASoC: SOF: add quirk to override topology mclk_id

[Sasha Levin]

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

[ Upstream commit d136949dd8e2e309dc2f186507486b71cbe9acdb ]

Some Intel-based platforms rely on a topology file that hard-codes the
use of MCLK0. This is incorrect in 10% of the cases. Rather than
generating yet another set of topology files, this patch adds a kernel
module parameter to override the topology value.

In hindsight, we should never have allowed mclks to be specified in
topology, this is a hardware-level information that should not have
been visible in the topology.

Future patches will try to set this value automagically, e.g. by
parsing the NHLT content.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20220919115350.43104-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/sof/intel/hda.c     | 11 +++++++++++
 sound/soc/sof/ipc3-topology.c |  7 +++++++
 sound/soc/sof/sof-priv.h      |  4 ++++
 3 files changed, 22 insertions(+)

diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c
index 6d4ecbe14adf..ada2e6775749 100644
--- a/sound/soc/sof/intel/hda.c
+++ b/sound/soc/sof/intel/hda.c
@@ -376,6 +376,10 @@ static int dmic_num_override = -1;
 module_param_named(dmic_num, dmic_num_override, int, 0444);
 MODULE_PARM_DESC(dmic_num, "SOF HDA DMIC number");
 
+static int mclk_id_override = -1;
+module_param_named(mclk_id, mclk_id_override, int, 0444);
+MODULE_PARM_DESC(mclk_id, "SOF SSP mclk_id");
+
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
 static bool hda_codec_use_common_hdmi = IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI);
 module_param_named(use_common_hdmi, hda_codec_use_common_hdmi, bool, 0444);
@@ -1565,6 +1569,13 @@ struct snd_soc_acpi_mach *hda_machine_select(struct snd_sof_dev *sdev)
 
 			sof_pdata->tplg_filename = tplg_filename;
 		}
+
+		/* check if mclk_id should be modified from topology defaults */
+		if (mclk_id_override >= 0) {
+			dev_info(sdev->dev, "Overriding topology with MCLK %d from kernel_parameter\n", mclk_id_override);
+			sdev->mclk_id_override = true;
+			sdev->mclk_id_quirk = mclk_id_override;
+		}
 	}
 
 	/*
diff --git a/sound/soc/sof/ipc3-topology.c b/sound/soc/sof/ipc3-topology.c
index 65923e7a5976..a39b43850f0e 100644
--- a/sound/soc/sof/ipc3-topology.c
+++ b/sound/soc/sof/ipc3-topology.c
@@ -1249,6 +1249,7 @@ static int sof_link_afe_load(struct snd_soc_component *scomp, struct snd_sof_dai
 static int sof_link_ssp_load(struct snd_soc_component *scomp, struct snd_sof_dai_link *slink,
 			     struct sof_ipc_dai_config *config, struct snd_sof_dai *dai)
 {
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
 	struct snd_soc_tplg_hw_config *hw_config = slink->hw_configs;
 	struct sof_dai_private_data *private = dai->private;
 	u32 size = sizeof(*config);
@@ -1273,6 +1274,12 @@ static int sof_link_ssp_load(struct snd_soc_component *scomp, struct snd_sof_dai
 
 		config[i].hdr.size = size;
 
+		if (sdev->mclk_id_override) {
+			dev_dbg(scomp->dev, "tplg: overriding topology mclk_id %d by quirk %d\n",
+				config[i].ssp.mclk_id, sdev->mclk_id_quirk);
+			config[i].ssp.mclk_id = sdev->mclk_id_quirk;
+		}
+
 		/* copy differentiating hw configs to ipc structs */
 		config[i].ssp.mclk_rate = le32_to_cpu(hw_config[i].mclk_rate);
 		config[i].ssp.bclk_rate = le32_to_cpu(hw_config[i].bclk_rate);
diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h
index 823583086279..828c74bb75f8 100644
--- a/sound/soc/sof/sof-priv.h
+++ b/sound/soc/sof/sof-priv.h
@@ -594,6 +594,10 @@ struct snd_sof_dev {
 	/* to protect the ipc_rx_handler_list  and  dsp_state_handler_list list */
 	struct mutex client_event_handler_mutex;
 
+	/* quirks to override topology values */
+	bool mclk_id_override;
+	u16  mclk_id_quirk; /* same size as in IPC3 definitions */
+
 	void *private;			/* core does not touch this */
 };
 
-- 
2.35.1

[PATCH AUTOSEL 6.0 29/44] drm/amdgpu: SDMA update use unlocked iterator

[Sasha Levin]

From: Philip Yang <Philip.Yang@amd.com>

[ Upstream commit 3913f0179ba366f7d7d160c506ce00de1602bbc4 ]

SDMA update page table may be called from unlocked context, this
generate below warning. Use unlocked iterator to handle this case.

WARNING: CPU: 0 PID: 1475 at
drivers/dma-buf/dma-resv.c:483 dma_resv_iter_next
Call Trace:
 dma_resv_iter_first+0x43/0xa0
 amdgpu_vm_sdma_update+0x69/0x2d0 [amdgpu]
 amdgpu_vm_ptes_update+0x29c/0x870 [amdgpu]
 amdgpu_vm_update_range+0x2f6/0x6c0 [amdgpu]
 svm_range_unmap_from_gpus+0x115/0x300 [amdgpu]
 svm_range_cpu_invalidate_pagetables+0x510/0x5e0 [amdgpu]
 __mmu_notifier_invalidate_range_start+0x1d3/0x230
 unmap_vmas+0x140/0x150
 unmap_region+0xa8/0x110

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Suggested-by: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
index 1fd3cbca20a2..718db7d98e5a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
@@ -211,12 +211,15 @@ static int amdgpu_vm_sdma_update(struct amdgpu_vm_update_params *p,
 	int r;
 
 	/* Wait for PD/PT moves to be completed */
-	dma_resv_for_each_fence(&cursor, bo->tbo.base.resv,
-				DMA_RESV_USAGE_KERNEL, fence) {
+	dma_resv_iter_begin(&cursor, bo->tbo.base.resv, DMA_RESV_USAGE_KERNEL);
+	dma_resv_for_each_fence_unlocked(&cursor, fence) {
 		r = amdgpu_sync_fence(&p->job->sync, fence);
-		if (r)
+		if (r) {
+			dma_resv_iter_end(&cursor);
 			return r;
+		}
 	}
+	dma_resv_iter_end(&cursor);
 
 	do {
 		ndw = p->num_dw_left;
-- 
2.35.1

[PATCH AUTOSEL 6.0 29/44] drm/amdgpu: SDMA update use unlocked iterator

[Sasha Levin]

From: Philip Yang <Philip.Yang@amd.com>

[ Upstream commit 3913f0179ba366f7d7d160c506ce00de1602bbc4 ]

SDMA update page table may be called from unlocked context, this
generate below warning. Use unlocked iterator to handle this case.

WARNING: CPU: 0 PID: 1475 at
drivers/dma-buf/dma-resv.c:483 dma_resv_iter_next
Call Trace:
 dma_resv_iter_first+0x43/0xa0
 amdgpu_vm_sdma_update+0x69/0x2d0 [amdgpu]
 amdgpu_vm_ptes_update+0x29c/0x870 [amdgpu]
 amdgpu_vm_update_range+0x2f6/0x6c0 [amdgpu]
 svm_range_unmap_from_gpus+0x115/0x300 [amdgpu]
 svm_range_cpu_invalidate_pagetables+0x510/0x5e0 [amdgpu]
 __mmu_notifier_invalidate_range_start+0x1d3/0x230
 unmap_vmas+0x140/0x150
 unmap_region+0xa8/0x110

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Suggested-by: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
index 1fd3cbca20a2..718db7d98e5a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
@@ -211,12 +211,15 @@ static int amdgpu_vm_sdma_update(struct amdgpu_vm_update_params *p,
 	int r;
 
 	/* Wait for PD/PT moves to be completed */
-	dma_resv_for_each_fence(&cursor, bo->tbo.base.resv,
-				DMA_RESV_USAGE_KERNEL, fence) {
+	dma_resv_iter_begin(&cursor, bo->tbo.base.resv, DMA_RESV_USAGE_KERNEL);
+	dma_resv_for_each_fence_unlocked(&cursor, fence) {
 		r = amdgpu_sync_fence(&p->job->sync, fence);
-		if (r)
+		if (r) {
+			dma_resv_iter_end(&cursor);
 			return r;
+		}
 	}
+	dma_resv_iter_end(&cursor);
 
 	do {
 		ndw = p->num_dw_left;
-- 
2.35.1

[PATCH AUTOSEL 6.0 29/44] drm/amdgpu: SDMA update use unlocked iterator

[Sasha Levin]

From: Philip Yang <Philip.Yang@amd.com>

[ Upstream commit 3913f0179ba366f7d7d160c506ce00de1602bbc4 ]

SDMA update page table may be called from unlocked context, this
generate below warning. Use unlocked iterator to handle this case.

WARNING: CPU: 0 PID: 1475 at
drivers/dma-buf/dma-resv.c:483 dma_resv_iter_next
Call Trace:
 dma_resv_iter_first+0x43/0xa0
 amdgpu_vm_sdma_update+0x69/0x2d0 [amdgpu]
 amdgpu_vm_ptes_update+0x29c/0x870 [amdgpu]
 amdgpu_vm_update_range+0x2f6/0x6c0 [amdgpu]
 svm_range_unmap_from_gpus+0x115/0x300 [amdgpu]
 svm_range_cpu_invalidate_pagetables+0x510/0x5e0 [amdgpu]
 __mmu_notifier_invalidate_range_start+0x1d3/0x230
 unmap_vmas+0x140/0x150
 unmap_region+0xa8/0x110

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Suggested-by: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
index 1fd3cbca20a2..718db7d98e5a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
@@ -211,12 +211,15 @@ static int amdgpu_vm_sdma_update(struct amdgpu_vm_update_params *p,
 	int r;
 
 	/* Wait for PD/PT moves to be completed */
-	dma_resv_for_each_fence(&cursor, bo->tbo.base.resv,
-				DMA_RESV_USAGE_KERNEL, fence) {
+	dma_resv_iter_begin(&cursor, bo->tbo.base.resv, DMA_RESV_USAGE_KERNEL);
+	dma_resv_for_each_fence_unlocked(&cursor, fence) {
 		r = amdgpu_sync_fence(&p->job->sync, fence);
-		if (r)
+		if (r) {
+			dma_resv_iter_end(&cursor);
 			return r;
+		}
 	}
+	dma_resv_iter_end(&cursor);
 
 	do {
 		ndw = p->num_dw_left;
-- 
2.35.1

[PATCH AUTOSEL 6.0 30/44] drm/amd/display: Fix urgent latency override for DCN32/DCN321

[Sasha Levin]

From: George Shen <george.shen@amd.com>

[ Upstream commit e7f2f4cd67443ce308480ca461806fcc3456e0ba ]

[Why]
The urgent latency override is useful when debugging issues
relating to underflow.

Current overridden variable is not correct and has no effect
on DCN3.2 and DCN3.21 DML calculations.

[How]
For DCN3.2 and DCN3.21, override the correct urgent latency
variable when bounding box override is present.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Reviewed-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: George Shen <george.shen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c   | 1 +
 drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
index e573e706430d..b9d3a4000c3d 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
@@ -2199,6 +2199,7 @@ void dcn32_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_pa
 		if ((int)(dcn3_2_soc.urgent_latency_us * 1000) != dc->bb_overrides.urgent_latency_ns
 			&& dc->bb_overrides.urgent_latency_ns) {
 			dcn3_2_soc.urgent_latency_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
+			dcn3_2_soc.urgent_latency_pixel_data_only_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
 		}
 
 		if ((int)(dcn3_2_soc.dram_clock_change_latency_us * 1000)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
index c87091683b5d..b6369758b491 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
@@ -489,6 +489,7 @@ void dcn321_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_p
 		if ((int)(dcn3_21_soc.urgent_latency_us * 1000) != dc->bb_overrides.urgent_latency_ns
 			&& dc->bb_overrides.urgent_latency_ns) {
 			dcn3_21_soc.urgent_latency_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
+			dcn3_21_soc.urgent_latency_pixel_data_only_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
 		}
 
 		if ((int)(dcn3_21_soc.dram_clock_change_latency_us * 1000)
-- 
2.35.1

[PATCH AUTOSEL 6.0 30/44] drm/amd/display: Fix urgent latency override for DCN32/DCN321

[Sasha Levin]

From: George Shen <george.shen@amd.com>

[ Upstream commit e7f2f4cd67443ce308480ca461806fcc3456e0ba ]

[Why]
The urgent latency override is useful when debugging issues
relating to underflow.

Current overridden variable is not correct and has no effect
on DCN3.2 and DCN3.21 DML calculations.

[How]
For DCN3.2 and DCN3.21, override the correct urgent latency
variable when bounding box override is present.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Reviewed-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: George Shen <george.shen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c   | 1 +
 drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
index e573e706430d..b9d3a4000c3d 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
@@ -2199,6 +2199,7 @@ void dcn32_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_pa
 		if ((int)(dcn3_2_soc.urgent_latency_us * 1000) != dc->bb_overrides.urgent_latency_ns
 			&& dc->bb_overrides.urgent_latency_ns) {
 			dcn3_2_soc.urgent_latency_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
+			dcn3_2_soc.urgent_latency_pixel_data_only_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
 		}
 
 		if ((int)(dcn3_2_soc.dram_clock_change_latency_us * 1000)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
index c87091683b5d..b6369758b491 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
@@ -489,6 +489,7 @@ void dcn321_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_p
 		if ((int)(dcn3_21_soc.urgent_latency_us * 1000) != dc->bb_overrides.urgent_latency_ns
 			&& dc->bb_overrides.urgent_latency_ns) {
 			dcn3_21_soc.urgent_latency_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
+			dcn3_21_soc.urgent_latency_pixel_data_only_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
 		}
 
 		if ((int)(dcn3_21_soc.dram_clock_change_latency_us * 1000)
-- 
2.35.1

[PATCH AUTOSEL 6.0 30/44] drm/amd/display: Fix urgent latency override for DCN32/DCN321

[Sasha Levin]

From: George Shen <george.shen@amd.com>

[ Upstream commit e7f2f4cd67443ce308480ca461806fcc3456e0ba ]

[Why]
The urgent latency override is useful when debugging issues
relating to underflow.

Current overridden variable is not correct and has no effect
on DCN3.2 and DCN3.21 DML calculations.

[How]
For DCN3.2 and DCN3.21, override the correct urgent latency
variable when bounding box override is present.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Reviewed-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: George Shen <george.shen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c   | 1 +
 drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
index e573e706430d..b9d3a4000c3d 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
@@ -2199,6 +2199,7 @@ void dcn32_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_pa
 		if ((int)(dcn3_2_soc.urgent_latency_us * 1000) != dc->bb_overrides.urgent_latency_ns
 			&& dc->bb_overrides.urgent_latency_ns) {
 			dcn3_2_soc.urgent_latency_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
+			dcn3_2_soc.urgent_latency_pixel_data_only_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
 		}
 
 		if ((int)(dcn3_2_soc.dram_clock_change_latency_us * 1000)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
index c87091683b5d..b6369758b491 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
@@ -489,6 +489,7 @@ void dcn321_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_p
 		if ((int)(dcn3_21_soc.urgent_latency_us * 1000) != dc->bb_overrides.urgent_latency_ns
 			&& dc->bb_overrides.urgent_latency_ns) {
 			dcn3_21_soc.urgent_latency_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
+			dcn3_21_soc.urgent_latency_pixel_data_only_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
 		}
 
 		if ((int)(dcn3_21_soc.dram_clock_change_latency_us * 1000)
-- 
2.35.1

[PATCH AUTOSEL 6.0 31/44] drm/amd/display: correct hostvm flag

[Sasha Levin]

From: Sherry Wang <Yao.Wang1@amd.com>

[ Upstream commit 796d6a37ff5ffaf9f2dc0f3f4bf9f4a1034c00de ]

[Why]
Hostvm should be enabled/disabled accordding to
the status of riommu_active, but hostvm always
be disabled on DCN31 which causes underflow

[How]
Set correct hostvm flag on DCN31

Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Sherry Wang <Yao.Wang1@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
index aedff18aff56..2e5a21856eee 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
@@ -891,7 +891,7 @@ static const struct dc_debug_options debug_defaults_drv = {
 	.optimize_edp_link_rate = true,
 	.enable_sw_cntl_psr = true,
 	.enable_z9_disable_interface = true, /* Allow support for the PMFW interface for disable Z9*/
-	.dml_hostvm_override = DML_HOSTVM_OVERRIDE_FALSE,
+	.dml_hostvm_override = DML_HOSTVM_NO_OVERRIDE,
 };
 
 static const struct dc_debug_options debug_defaults_diags = {
-- 
2.35.1

[PATCH AUTOSEL 6.0 31/44] drm/amd/display: correct hostvm flag

[Sasha Levin]

From: Sherry Wang <Yao.Wang1@amd.com>

[ Upstream commit 796d6a37ff5ffaf9f2dc0f3f4bf9f4a1034c00de ]

[Why]
Hostvm should be enabled/disabled accordding to
the status of riommu_active, but hostvm always
be disabled on DCN31 which causes underflow

[How]
Set correct hostvm flag on DCN31

Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Sherry Wang <Yao.Wang1@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
index aedff18aff56..2e5a21856eee 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
@@ -891,7 +891,7 @@ static const struct dc_debug_options debug_defaults_drv = {
 	.optimize_edp_link_rate = true,
 	.enable_sw_cntl_psr = true,
 	.enable_z9_disable_interface = true, /* Allow support for the PMFW interface for disable Z9*/
-	.dml_hostvm_override = DML_HOSTVM_OVERRIDE_FALSE,
+	.dml_hostvm_override = DML_HOSTVM_NO_OVERRIDE,
 };
 
 static const struct dc_debug_options debug_defaults_diags = {
-- 
2.35.1

[PATCH AUTOSEL 6.0 31/44] drm/amd/display: correct hostvm flag

[Sasha Levin]

From: Sherry Wang <Yao.Wang1@amd.com>

[ Upstream commit 796d6a37ff5ffaf9f2dc0f3f4bf9f4a1034c00de ]

[Why]
Hostvm should be enabled/disabled accordding to
the status of riommu_active, but hostvm always
be disabled on DCN31 which causes underflow

[How]
Set correct hostvm flag on DCN31

Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Sherry Wang <Yao.Wang1@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
index aedff18aff56..2e5a21856eee 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
@@ -891,7 +891,7 @@ static const struct dc_debug_options debug_defaults_drv = {
 	.optimize_edp_link_rate = true,
 	.enable_sw_cntl_psr = true,
 	.enable_z9_disable_interface = true, /* Allow support for the PMFW interface for disable Z9*/
-	.dml_hostvm_override = DML_HOSTVM_OVERRIDE_FALSE,
+	.dml_hostvm_override = DML_HOSTVM_NO_OVERRIDE,
 };
 
 static const struct dc_debug_options debug_defaults_diags = {
-- 
2.35.1

[PATCH AUTOSEL 6.0 32/44] drm/amdgpu: fix initial connector audio value

[Sasha Levin]

From: hongao <hongao@uniontech.com>

[ Upstream commit 4bb71fce58f30df3f251118291d6b0187ce531e6 ]

This got lost somewhere along the way, This fixes
audio not working until set_property was called.

Signed-off-by: hongao <hongao@uniontech.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
index b7933c2ce765..491d4846fc02 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
@@ -1674,10 +1674,12 @@ amdgpu_connector_add(struct amdgpu_device *adev,
 						   adev->mode_info.dither_property,
 						   AMDGPU_FMT_DITHER_DISABLE);
 
-			if (amdgpu_audio != 0)
+			if (amdgpu_audio != 0) {
 				drm_object_attach_property(&amdgpu_connector->base.base,
 							   adev->mode_info.audio_property,
 							   AMDGPU_AUDIO_AUTO);
+				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
+			}
 
 			subpixel_order = SubPixelHorizontalRGB;
 			connector->interlace_allowed = true;
@@ -1799,6 +1801,7 @@ amdgpu_connector_add(struct amdgpu_device *adev,
 				drm_object_attach_property(&amdgpu_connector->base.base,
 							   adev->mode_info.audio_property,
 							   AMDGPU_AUDIO_AUTO);
+				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
 			}
 			drm_object_attach_property(&amdgpu_connector->base.base,
 						   adev->mode_info.dither_property,
@@ -1852,6 +1855,7 @@ amdgpu_connector_add(struct amdgpu_device *adev,
 				drm_object_attach_property(&amdgpu_connector->base.base,
 							   adev->mode_info.audio_property,
 							   AMDGPU_AUDIO_AUTO);
+				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
 			}
 			drm_object_attach_property(&amdgpu_connector->base.base,
 						   adev->mode_info.dither_property,
@@ -1902,6 +1906,7 @@ amdgpu_connector_add(struct amdgpu_device *adev,
 				drm_object_attach_property(&amdgpu_connector->base.base,
 							   adev->mode_info.audio_property,
 							   AMDGPU_AUDIO_AUTO);
+				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
 			}
 			drm_object_attach_property(&amdgpu_connector->base.base,
 						   adev->mode_info.dither_property,
-- 
2.35.1

[PATCH AUTOSEL 6.0 32/44] drm/amdgpu: fix initial connector audio value

[Sasha Levin]

From: hongao <hongao@uniontech.com>

[ Upstream commit 4bb71fce58f30df3f251118291d6b0187ce531e6 ]

This got lost somewhere along the way, This fixes
audio not working until set_property was called.

Signed-off-by: hongao <hongao@uniontech.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
index b7933c2ce765..491d4846fc02 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
@@ -1674,10 +1674,12 @@ amdgpu_connector_add(struct amdgpu_device *adev,
 						   adev->mode_info.dither_property,
 						   AMDGPU_FMT_DITHER_DISABLE);
 
-			if (amdgpu_audio != 0)
+			if (amdgpu_audio != 0) {
 				drm_object_attach_property(&amdgpu_connector->base.base,
 							   adev->mode_info.audio_property,
 							   AMDGPU_AUDIO_AUTO);
+				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
+			}
 
 			subpixel_order = SubPixelHorizontalRGB;
 			connector->interlace_allowed = true;
@@ -1799,6 +1801,7 @@ amdgpu_connector_add(struct amdgpu_device *adev,
 				drm_object_attach_property(&amdgpu_connector->base.base,
 							   adev->mode_info.audio_property,
 							   AMDGPU_AUDIO_AUTO);
+				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
 			}
 			drm_object_attach_property(&amdgpu_connector->base.base,
 						   adev->mode_info.dither_property,
@@ -1852,6 +1855,7 @@ amdgpu_connector_add(struct amdgpu_device *adev,
 				drm_object_attach_property(&amdgpu_connector->base.base,
 							   adev->mode_info.audio_property,
 							   AMDGPU_AUDIO_AUTO);
+				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
 			}
 			drm_object_attach_property(&amdgpu_connector->base.base,
 						   adev->mode_info.dither_property,
@@ -1902,6 +1906,7 @@ amdgpu_connector_add(struct amdgpu_device *adev,
 				drm_object_attach_property(&amdgpu_connector->base.base,
 							   adev->mode_info.audio_property,
 							   AMDGPU_AUDIO_AUTO);
+				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
 			}
 			drm_object_attach_property(&amdgpu_connector->base.base,
 						   adev->mode_info.dither_property,
-- 
2.35.1

[PATCH AUTOSEL 6.0 32/44] drm/amdgpu: fix initial connector audio value

[Sasha Levin]

From: hongao <hongao@uniontech.com>

[ Upstream commit 4bb71fce58f30df3f251118291d6b0187ce531e6 ]

This got lost somewhere along the way, This fixes
audio not working until set_property was called.

Signed-off-by: hongao <hongao@uniontech.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
index b7933c2ce765..491d4846fc02 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
@@ -1674,10 +1674,12 @@ amdgpu_connector_add(struct amdgpu_device *adev,
 						   adev->mode_info.dither_property,
 						   AMDGPU_FMT_DITHER_DISABLE);
 
-			if (amdgpu_audio != 0)
+			if (amdgpu_audio != 0) {
 				drm_object_attach_property(&amdgpu_connector->base.base,
 							   adev->mode_info.audio_property,
 							   AMDGPU_AUDIO_AUTO);
+				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
+			}
 
 			subpixel_order = SubPixelHorizontalRGB;
 			connector->interlace_allowed = true;
@@ -1799,6 +1801,7 @@ amdgpu_connector_add(struct amdgpu_device *adev,
 				drm_object_attach_property(&amdgpu_connector->base.base,
 							   adev->mode_info.audio_property,
 							   AMDGPU_AUDIO_AUTO);
+				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
 			}
 			drm_object_attach_property(&amdgpu_connector->base.base,
 						   adev->mode_info.dither_property,
@@ -1852,6 +1855,7 @@ amdgpu_connector_add(struct amdgpu_device *adev,
 				drm_object_attach_property(&amdgpu_connector->base.base,
 							   adev->mode_info.audio_property,
 							   AMDGPU_AUDIO_AUTO);
+				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
 			}
 			drm_object_attach_property(&amdgpu_connector->base.base,
 						   adev->mode_info.dither_property,
@@ -1902,6 +1906,7 @@ amdgpu_connector_add(struct amdgpu_device *adev,
 				drm_object_attach_property(&amdgpu_connector->base.base,
 							   adev->mode_info.audio_property,
 							   AMDGPU_AUDIO_AUTO);
+				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
 			}
 			drm_object_attach_property(&amdgpu_connector->base.base,
 						   adev->mode_info.dither_property,
-- 
2.35.1

[PATCH AUTOSEL 6.0 33/44] ASoC: amd: yc: Add ASUS UM5302TA into DMI table

[Sasha Levin]

From: Xiaoyan Li <lxy.lixiaoyan@gmail.com>

[ Upstream commit 4df5b13dec9e1b5a12db47ee92eb3f7da5c3deb5 ]

ASUS Zenbook S 13 OLED (UM5302TA) needs this quirk to get the built-in
microphone working properly.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=216270
Signed-off-by: Xiaoyan Li <lxy.lixiaoyan@gmail.com>
Suggested-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20220920201436.19734-2-mario.limonciello@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/amd/yc/acp6x-mach.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sound/soc/amd/yc/acp6x-mach.c b/sound/soc/amd/yc/acp6x-mach.c
index e0b24e1daef3..5eab3baf3573 100644
--- a/sound/soc/amd/yc/acp6x-mach.c
+++ b/sound/soc/amd/yc/acp6x-mach.c
@@ -171,6 +171,13 @@ static const struct dmi_system_id yc_acp_quirk_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "21J6"),
 		}
 	},
+	{
+		.driver_data = &acp6x_card,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "UM5302TA"),
+		}
+	},
 	{}
 };
 
-- 
2.35.1

[PATCH AUTOSEL 6.0 33/44] ASoC: amd: yc: Add ASUS UM5302TA into DMI table

[Sasha Levin]

From: Xiaoyan Li <lxy.lixiaoyan@gmail.com>

[ Upstream commit 4df5b13dec9e1b5a12db47ee92eb3f7da5c3deb5 ]

ASUS Zenbook S 13 OLED (UM5302TA) needs this quirk to get the built-in
microphone working properly.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=216270
Signed-off-by: Xiaoyan Li <lxy.lixiaoyan@gmail.com>
Suggested-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20220920201436.19734-2-mario.limonciello@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/amd/yc/acp6x-mach.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sound/soc/amd/yc/acp6x-mach.c b/sound/soc/amd/yc/acp6x-mach.c
index e0b24e1daef3..5eab3baf3573 100644
--- a/sound/soc/amd/yc/acp6x-mach.c
+++ b/sound/soc/amd/yc/acp6x-mach.c
@@ -171,6 +171,13 @@ static const struct dmi_system_id yc_acp_quirk_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "21J6"),
 		}
 	},
+	{
+		.driver_data = &acp6x_card,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "UM5302TA"),
+		}
+	},
 	{}
 };
 
-- 
2.35.1

[PATCH AUTOSEL 6.0 34/44] ASoC: amd: yc: Add Lenovo Yoga Slim 7 Pro X to quirks table

[Sasha Levin]

From: Mario Limonciello <mario.limonciello@amd.com>

[ Upstream commit 2232b2dd8cd4f1e6d554b2c3f6899ce36f791b67 ]

Lenovo Yoga Slim 7 Pro X has an ACP DMIC that isn't specified in the
ASL or existing quirk list.  Add it to the quirk table to let DMIC
work on these systems.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=216299
Tested-by: Sebastian S <iam@decentr.al>
Reported-and-tested-by: Travis Glenn Hansen <travisghansen@yahoo.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20220920201436.19734-3-mario.limonciello@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/amd/yc/acp6x-mach.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sound/soc/amd/yc/acp6x-mach.c b/sound/soc/amd/yc/acp6x-mach.c
index 5eab3baf3573..2cb50d5cf1a9 100644
--- a/sound/soc/amd/yc/acp6x-mach.c
+++ b/sound/soc/amd/yc/acp6x-mach.c
@@ -171,6 +171,13 @@ static const struct dmi_system_id yc_acp_quirk_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "21J6"),
 		}
 	},
+	{
+		.driver_data = &acp6x_card,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "82"),
+		}
+	},
 	{
 		.driver_data = &acp6x_card,
 		.matches = {
-- 
2.35.1

[PATCH AUTOSEL 6.0 34/44] ASoC: amd: yc: Add Lenovo Yoga Slim 7 Pro X to quirks table

[Sasha Levin]

From: Mario Limonciello <mario.limonciello@amd.com>

[ Upstream commit 2232b2dd8cd4f1e6d554b2c3f6899ce36f791b67 ]

Lenovo Yoga Slim 7 Pro X has an ACP DMIC that isn't specified in the
ASL or existing quirk list.  Add it to the quirk table to let DMIC
work on these systems.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=216299
Tested-by: Sebastian S <iam@decentr.al>
Reported-and-tested-by: Travis Glenn Hansen <travisghansen@yahoo.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20220920201436.19734-3-mario.limonciello@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/amd/yc/acp6x-mach.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sound/soc/amd/yc/acp6x-mach.c b/sound/soc/amd/yc/acp6x-mach.c
index 5eab3baf3573..2cb50d5cf1a9 100644
--- a/sound/soc/amd/yc/acp6x-mach.c
+++ b/sound/soc/amd/yc/acp6x-mach.c
@@ -171,6 +171,13 @@ static const struct dmi_system_id yc_acp_quirk_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "21J6"),
 		}
 	},
+	{
+		.driver_data = &acp6x_card,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "82"),
+		}
+	},
 	{
 		.driver_data = &acp6x_card,
 		.matches = {
-- 
2.35.1

[PATCH AUTOSEL 6.0 35/44] drm/meson: reorder driver deinit sequence to fix use-after-free bug

[Sasha Levin]

From: Adrián Larumbe <adrian.larumbe@collabora.com>

[ Upstream commit 31c519981eb141c7ec39bfd5be25d35f02edb868 ]

Unloading the driver triggers the following KASAN warning:

[  +0.006275] =============================================================
[  +0.000029] BUG: KASAN: use-after-free in __list_del_entry_valid+0xe0/0x1a0
[  +0.000026] Read of size 8 at addr ffff000020c395e0 by task rmmod/2695

[  +0.000019] CPU: 5 PID: 2695 Comm: rmmod Tainted: G         C O      5.19.0-rc6-lrmbkasan+ #1
[  +0.000013] Hardware name: Hardkernel ODROID-N2Plus (DT)
[  +0.000008] Call trace:
[  +0.000007]  dump_backtrace+0x1ec/0x280
[  +0.000013]  show_stack+0x24/0x80
[  +0.000008]  dump_stack_lvl+0x98/0xd4
[  +0.000011]  print_address_description.constprop.0+0x80/0x520
[  +0.000011]  print_report+0x128/0x260
[  +0.000007]  kasan_report+0xb8/0xfc
[  +0.000008]  __asan_report_load8_noabort+0x3c/0x50
[  +0.000010]  __list_del_entry_valid+0xe0/0x1a0
[  +0.000009]  drm_atomic_private_obj_fini+0x30/0x200 [drm]
[  +0.000172]  drm_bridge_detach+0x94/0x260 [drm]
[  +0.000145]  drm_encoder_cleanup+0xa4/0x290 [drm]
[  +0.000144]  drm_mode_config_cleanup+0x118/0x740 [drm]
[  +0.000143]  drm_mode_config_init_release+0x1c/0x2c [drm]
[  +0.000144]  drm_managed_release+0x170/0x414 [drm]
[  +0.000142]  drm_dev_put.part.0+0xc0/0x124 [drm]
[  +0.000143]  drm_dev_put+0x20/0x30 [drm]
[  +0.000142]  meson_drv_unbind+0x1d8/0x2ac [meson_drm]
[  +0.000028]  take_down_aggregate_device+0xb0/0x160
[  +0.000016]  component_del+0x18c/0x360
[  +0.000009]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]
[  +0.000015]  platform_remove+0x64/0xb0
[  +0.000009]  device_remove+0xb8/0x154
[  +0.000009]  device_release_driver_internal+0x398/0x5b0
[  +0.000009]  driver_detach+0xac/0x1b0
[  +0.000009]  bus_remove_driver+0x158/0x29c
[  +0.000009]  driver_unregister+0x70/0xb0
[  +0.000008]  platform_driver_unregister+0x20/0x2c
[  +0.000008]  meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi]
[  +0.000012]  __do_sys_delete_module+0x288/0x400
[  +0.000011]  __arm64_sys_delete_module+0x5c/0x80
[  +0.000009]  invoke_syscall+0x74/0x260
[  +0.000009]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000009]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000012]  el0t_64_sync_handler+0x11c/0x150
[  +0.000008]  el0t_64_sync+0x18c/0x190

[  +0.000018] Allocated by task 0:
[  +0.000007] (stack is not available)

[  +0.000011] Freed by task 2695:
[  +0.000008]  kasan_save_stack+0x2c/0x5c
[  +0.000011]  kasan_set_track+0x2c/0x40
[  +0.000008]  kasan_set_free_info+0x28/0x50
[  +0.000009]  ____kasan_slab_free+0x128/0x1d4
[  +0.000008]  __kasan_slab_free+0x18/0x24
[  +0.000007]  slab_free_freelist_hook+0x108/0x230
[  +0.000011]  kfree+0x110/0x35c
[  +0.000008]  release_nodes+0xf0/0x16c
[  +0.000009]  devres_release_group+0x180/0x270
[  +0.000008]  component_unbind+0x128/0x1e0
[  +0.000010]  component_unbind_all+0x1b8/0x264
[  +0.000009]  meson_drv_unbind+0x1a0/0x2ac [meson_drm]
[  +0.000025]  take_down_aggregate_device+0xb0/0x160
[  +0.000009]  component_del+0x18c/0x360
[  +0.000009]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]
[  +0.000012]  platform_remove+0x64/0xb0
[  +0.000008]  device_remove+0xb8/0x154
[  +0.000009]  device_release_driver_internal+0x398/0x5b0
[  +0.000009]  driver_detach+0xac/0x1b0
[  +0.000009]  bus_remove_driver+0x158/0x29c
[  +0.000008]  driver_unregister+0x70/0xb0
[  +0.000008]  platform_driver_unregister+0x20/0x2c
[  +0.000008]  meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi]
[  +0.000011]  __do_sys_delete_module+0x288/0x400
[  +0.000010]  __arm64_sys_delete_module+0x5c/0x80
[  +0.000008]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000009]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000014] The buggy address belongs to the object at ffff000020c39000
               which belongs to the cache kmalloc-4k of size 4096
[  +0.000008] The buggy address is located 1504 bytes inside of
               4096-byte region [ffff000020c39000, ffff000020c3a000)

[  +0.000016] The buggy address belongs to the physical page:
[  +0.000009] page:fffffc0000830e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x20c38
[  +0.000013] head:fffffc0000830e00 order:3 compound_mapcount:0 compound_pincount:0
[  +0.000008] flags: 0xffff00000010200(slab|head|node=0|zone=0|lastcpupid=0xffff)
[  +0.000019] raw: 0ffff00000010200 fffffc0000fd4808 fffffc0000126208 ffff000000002e80
[  +0.000009] raw: 0000000000000000 0000000000020002 00000001ffffffff 0000000000000000
[  +0.000008] page dumped because: kasan: bad access detected

[  +0.000011] Memory state around the buggy address:
[  +0.000008]  ffff000020c39480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]  ffff000020c39500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007] >ffff000020c39580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]                                                        ^
[  +0.000007]  ffff000020c39600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]  ffff000020c39680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000006] ==================================================================

The reason this is happening is unloading meson-dw-hdmi will cause the
component API to take down the aggregate device, which in turn will cause
all devres-managed memory to be freed, including the struct dw_hdmi
allocated in dw_hdmi_probe. This struct embeds a struct drm_bridge that is
added at the end of the function, and which is later on picked up in
meson_encoder_hdmi_init.

However, when attaching the bridge to the encoder created in
meson_encoder_hdmi_init, it's linked to the encoder's bridge chain, from
where it never leaves, even after devres_release_group is called when the
driver's components are unbound and the embedding structure freed.

Then, when calling drm_dev_put in the aggregate driver's unbind function,
drm_bridge_detach is called for every single bridge linked to the encoder,
including the one whose memory had already been deallocated.

Fix by calling component_unbind_all after drm_dev_put.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220919010940.419893-2-adrian.larumbe@collabora.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/meson/meson_drv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index bd4ca11d3ff5..7df149d42728 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -388,9 +388,9 @@ static void meson_drv_unbind(struct device *dev)
 	drm_dev_unregister(drm);
 	drm_kms_helper_poll_fini(drm);
 	drm_atomic_helper_shutdown(drm);
-	component_unbind_all(dev, drm);
 	free_irq(priv->vsync_irq, drm);
 	drm_dev_put(drm);
+	component_unbind_all(dev, drm);
 
 	if (priv->afbcd.ops)
 		priv->afbcd.ops->exit(priv);
-- 
2.35.1

[PATCH AUTOSEL 6.0 35/44] drm/meson: reorder driver deinit sequence to fix use-after-free bug

[Sasha Levin]

From: Adrián Larumbe <adrian.larumbe@collabora.com>

[ Upstream commit 31c519981eb141c7ec39bfd5be25d35f02edb868 ]

Unloading the driver triggers the following KASAN warning:

[  +0.006275] =============================================================
[  +0.000029] BUG: KASAN: use-after-free in __list_del_entry_valid+0xe0/0x1a0
[  +0.000026] Read of size 8 at addr ffff000020c395e0 by task rmmod/2695

[  +0.000019] CPU: 5 PID: 2695 Comm: rmmod Tainted: G         C O      5.19.0-rc6-lrmbkasan+ #1
[  +0.000013] Hardware name: Hardkernel ODROID-N2Plus (DT)
[  +0.000008] Call trace:
[  +0.000007]  dump_backtrace+0x1ec/0x280
[  +0.000013]  show_stack+0x24/0x80
[  +0.000008]  dump_stack_lvl+0x98/0xd4
[  +0.000011]  print_address_description.constprop.0+0x80/0x520
[  +0.000011]  print_report+0x128/0x260
[  +0.000007]  kasan_report+0xb8/0xfc
[  +0.000008]  __asan_report_load8_noabort+0x3c/0x50
[  +0.000010]  __list_del_entry_valid+0xe0/0x1a0
[  +0.000009]  drm_atomic_private_obj_fini+0x30/0x200 [drm]
[  +0.000172]  drm_bridge_detach+0x94/0x260 [drm]
[  +0.000145]  drm_encoder_cleanup+0xa4/0x290 [drm]
[  +0.000144]  drm_mode_config_cleanup+0x118/0x740 [drm]
[  +0.000143]  drm_mode_config_init_release+0x1c/0x2c [drm]
[  +0.000144]  drm_managed_release+0x170/0x414 [drm]
[  +0.000142]  drm_dev_put.part.0+0xc0/0x124 [drm]
[  +0.000143]  drm_dev_put+0x20/0x30 [drm]
[  +0.000142]  meson_drv_unbind+0x1d8/0x2ac [meson_drm]
[  +0.000028]  take_down_aggregate_device+0xb0/0x160
[  +0.000016]  component_del+0x18c/0x360
[  +0.000009]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]
[  +0.000015]  platform_remove+0x64/0xb0
[  +0.000009]  device_remove+0xb8/0x154
[  +0.000009]  device_release_driver_internal+0x398/0x5b0
[  +0.000009]  driver_detach+0xac/0x1b0
[  +0.000009]  bus_remove_driver+0x158/0x29c
[  +0.000009]  driver_unregister+0x70/0xb0
[  +0.000008]  platform_driver_unregister+0x20/0x2c
[  +0.000008]  meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi]
[  +0.000012]  __do_sys_delete_module+0x288/0x400
[  +0.000011]  __arm64_sys_delete_module+0x5c/0x80
[  +0.000009]  invoke_syscall+0x74/0x260
[  +0.000009]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000009]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000012]  el0t_64_sync_handler+0x11c/0x150
[  +0.000008]  el0t_64_sync+0x18c/0x190

[  +0.000018] Allocated by task 0:
[  +0.000007] (stack is not available)

[  +0.000011] Freed by task 2695:
[  +0.000008]  kasan_save_stack+0x2c/0x5c
[  +0.000011]  kasan_set_track+0x2c/0x40
[  +0.000008]  kasan_set_free_info+0x28/0x50
[  +0.000009]  ____kasan_slab_free+0x128/0x1d4
[  +0.000008]  __kasan_slab_free+0x18/0x24
[  +0.000007]  slab_free_freelist_hook+0x108/0x230
[  +0.000011]  kfree+0x110/0x35c
[  +0.000008]  release_nodes+0xf0/0x16c
[  +0.000009]  devres_release_group+0x180/0x270
[  +0.000008]  component_unbind+0x128/0x1e0
[  +0.000010]  component_unbind_all+0x1b8/0x264
[  +0.000009]  meson_drv_unbind+0x1a0/0x2ac [meson_drm]
[  +0.000025]  take_down_aggregate_device+0xb0/0x160
[  +0.000009]  component_del+0x18c/0x360
[  +0.000009]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]
[  +0.000012]  platform_remove+0x64/0xb0
[  +0.000008]  device_remove+0xb8/0x154
[  +0.000009]  device_release_driver_internal+0x398/0x5b0
[  +0.000009]  driver_detach+0xac/0x1b0
[  +0.000009]  bus_remove_driver+0x158/0x29c
[  +0.000008]  driver_unregister+0x70/0xb0
[  +0.000008]  platform_driver_unregister+0x20/0x2c
[  +0.000008]  meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi]
[  +0.000011]  __do_sys_delete_module+0x288/0x400
[  +0.000010]  __arm64_sys_delete_module+0x5c/0x80
[  +0.000008]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000009]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000014] The buggy address belongs to the object at ffff000020c39000
               which belongs to the cache kmalloc-4k of size 4096
[  +0.000008] The buggy address is located 1504 bytes inside of
               4096-byte region [ffff000020c39000, ffff000020c3a000)

[  +0.000016] The buggy address belongs to the physical page:
[  +0.000009] page:fffffc0000830e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x20c38
[  +0.000013] head:fffffc0000830e00 order:3 compound_mapcount:0 compound_pincount:0
[  +0.000008] flags: 0xffff00000010200(slab|head|node=0|zone=0|lastcpupid=0xffff)
[  +0.000019] raw: 0ffff00000010200 fffffc0000fd4808 fffffc0000126208 ffff000000002e80
[  +0.000009] raw: 0000000000000000 0000000000020002 00000001ffffffff 0000000000000000
[  +0.000008] page dumped because: kasan: bad access detected

[  +0.000011] Memory state around the buggy address:
[  +0.000008]  ffff000020c39480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]  ffff000020c39500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007] >ffff000020c39580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]                                                        ^
[  +0.000007]  ffff000020c39600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]  ffff000020c39680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000006] ==================================================================

The reason this is happening is unloading meson-dw-hdmi will cause the
component API to take down the aggregate device, which in turn will cause
all devres-managed memory to be freed, including the struct dw_hdmi
allocated in dw_hdmi_probe. This struct embeds a struct drm_bridge that is
added at the end of the function, and which is later on picked up in
meson_encoder_hdmi_init.

However, when attaching the bridge to the encoder created in
meson_encoder_hdmi_init, it's linked to the encoder's bridge chain, from
where it never leaves, even after devres_release_group is called when the
driver's components are unbound and the embedding structure freed.

Then, when calling drm_dev_put in the aggregate driver's unbind function,
drm_bridge_detach is called for every single bridge linked to the encoder,
including the one whose memory had already been deallocated.

Fix by calling component_unbind_all after drm_dev_put.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220919010940.419893-2-adrian.larumbe@collabora.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/meson/meson_drv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index bd4ca11d3ff5..7df149d42728 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -388,9 +388,9 @@ static void meson_drv_unbind(struct device *dev)
 	drm_dev_unregister(drm);
 	drm_kms_helper_poll_fini(drm);
 	drm_atomic_helper_shutdown(drm);
-	component_unbind_all(dev, drm);
 	free_irq(priv->vsync_irq, drm);
 	drm_dev_put(drm);
+	component_unbind_all(dev, drm);
 
 	if (priv->afbcd.ops)
 		priv->afbcd.ops->exit(priv);
-- 
2.35.1


_______________________________________________
linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic

[PATCH AUTOSEL 6.0 35/44] drm/meson: reorder driver deinit sequence to fix use-after-free bug

[Sasha Levin]

From: Adrián Larumbe <adrian.larumbe@collabora.com>

[ Upstream commit 31c519981eb141c7ec39bfd5be25d35f02edb868 ]

Unloading the driver triggers the following KASAN warning:

[  +0.006275] =============================================================
[  +0.000029] BUG: KASAN: use-after-free in __list_del_entry_valid+0xe0/0x1a0
[  +0.000026] Read of size 8 at addr ffff000020c395e0 by task rmmod/2695

[  +0.000019] CPU: 5 PID: 2695 Comm: rmmod Tainted: G         C O      5.19.0-rc6-lrmbkasan+ #1
[  +0.000013] Hardware name: Hardkernel ODROID-N2Plus (DT)
[  +0.000008] Call trace:
[  +0.000007]  dump_backtrace+0x1ec/0x280
[  +0.000013]  show_stack+0x24/0x80
[  +0.000008]  dump_stack_lvl+0x98/0xd4
[  +0.000011]  print_address_description.constprop.0+0x80/0x520
[  +0.000011]  print_report+0x128/0x260
[  +0.000007]  kasan_report+0xb8/0xfc
[  +0.000008]  __asan_report_load8_noabort+0x3c/0x50
[  +0.000010]  __list_del_entry_valid+0xe0/0x1a0
[  +0.000009]  drm_atomic_private_obj_fini+0x30/0x200 [drm]
[  +0.000172]  drm_bridge_detach+0x94/0x260 [drm]
[  +0.000145]  drm_encoder_cleanup+0xa4/0x290 [drm]
[  +0.000144]  drm_mode_config_cleanup+0x118/0x740 [drm]
[  +0.000143]  drm_mode_config_init_release+0x1c/0x2c [drm]
[  +0.000144]  drm_managed_release+0x170/0x414 [drm]
[  +0.000142]  drm_dev_put.part.0+0xc0/0x124 [drm]
[  +0.000143]  drm_dev_put+0x20/0x30 [drm]
[  +0.000142]  meson_drv_unbind+0x1d8/0x2ac [meson_drm]
[  +0.000028]  take_down_aggregate_device+0xb0/0x160
[  +0.000016]  component_del+0x18c/0x360
[  +0.000009]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]
[  +0.000015]  platform_remove+0x64/0xb0
[  +0.000009]  device_remove+0xb8/0x154
[  +0.000009]  device_release_driver_internal+0x398/0x5b0
[  +0.000009]  driver_detach+0xac/0x1b0
[  +0.000009]  bus_remove_driver+0x158/0x29c
[  +0.000009]  driver_unregister+0x70/0xb0
[  +0.000008]  platform_driver_unregister+0x20/0x2c
[  +0.000008]  meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi]
[  +0.000012]  __do_sys_delete_module+0x288/0x400
[  +0.000011]  __arm64_sys_delete_module+0x5c/0x80
[  +0.000009]  invoke_syscall+0x74/0x260
[  +0.000009]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000009]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000012]  el0t_64_sync_handler+0x11c/0x150
[  +0.000008]  el0t_64_sync+0x18c/0x190

[  +0.000018] Allocated by task 0:
[  +0.000007] (stack is not available)

[  +0.000011] Freed by task 2695:
[  +0.000008]  kasan_save_stack+0x2c/0x5c
[  +0.000011]  kasan_set_track+0x2c/0x40
[  +0.000008]  kasan_set_free_info+0x28/0x50
[  +0.000009]  ____kasan_slab_free+0x128/0x1d4
[  +0.000008]  __kasan_slab_free+0x18/0x24
[  +0.000007]  slab_free_freelist_hook+0x108/0x230
[  +0.000011]  kfree+0x110/0x35c
[  +0.000008]  release_nodes+0xf0/0x16c
[  +0.000009]  devres_release_group+0x180/0x270
[  +0.000008]  component_unbind+0x128/0x1e0
[  +0.000010]  component_unbind_all+0x1b8/0x264
[  +0.000009]  meson_drv_unbind+0x1a0/0x2ac [meson_drm]
[  +0.000025]  take_down_aggregate_device+0xb0/0x160
[  +0.000009]  component_del+0x18c/0x360
[  +0.000009]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]
[  +0.000012]  platform_remove+0x64/0xb0
[  +0.000008]  device_remove+0xb8/0x154
[  +0.000009]  device_release_driver_internal+0x398/0x5b0
[  +0.000009]  driver_detach+0xac/0x1b0
[  +0.000009]  bus_remove_driver+0x158/0x29c
[  +0.000008]  driver_unregister+0x70/0xb0
[  +0.000008]  platform_driver_unregister+0x20/0x2c
[  +0.000008]  meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi]
[  +0.000011]  __do_sys_delete_module+0x288/0x400
[  +0.000010]  __arm64_sys_delete_module+0x5c/0x80
[  +0.000008]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000009]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000014] The buggy address belongs to the object at ffff000020c39000
               which belongs to the cache kmalloc-4k of size 4096
[  +0.000008] The buggy address is located 1504 bytes inside of
               4096-byte region [ffff000020c39000, ffff000020c3a000)

[  +0.000016] The buggy address belongs to the physical page:
[  +0.000009] page:fffffc0000830e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x20c38
[  +0.000013] head:fffffc0000830e00 order:3 compound_mapcount:0 compound_pincount:0
[  +0.000008] flags: 0xffff00000010200(slab|head|node=0|zone=0|lastcpupid=0xffff)
[  +0.000019] raw: 0ffff00000010200 fffffc0000fd4808 fffffc0000126208 ffff000000002e80
[  +0.000009] raw: 0000000000000000 0000000000020002 00000001ffffffff 0000000000000000
[  +0.000008] page dumped because: kasan: bad access detected

[  +0.000011] Memory state around the buggy address:
[  +0.000008]  ffff000020c39480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]  ffff000020c39500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007] >ffff000020c39580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]                                                        ^
[  +0.000007]  ffff000020c39600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]  ffff000020c39680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000006] ==================================================================

The reason this is happening is unloading meson-dw-hdmi will cause the
component API to take down the aggregate device, which in turn will cause
all devres-managed memory to be freed, including the struct dw_hdmi
allocated in dw_hdmi_probe. This struct embeds a struct drm_bridge that is
added at the end of the function, and which is later on picked up in
meson_encoder_hdmi_init.

However, when attaching the bridge to the encoder created in
meson_encoder_hdmi_init, it's linked to the encoder's bridge chain, from
where it never leaves, even after devres_release_group is called when the
driver's components are unbound and the embedding structure freed.

Then, when calling drm_dev_put in the aggregate driver's unbind function,
drm_bridge_detach is called for every single bridge linked to the encoder,
including the one whose memory had already been deallocated.

Fix by calling component_unbind_all after drm_dev_put.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220919010940.419893-2-adrian.larumbe@collabora.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/meson/meson_drv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index bd4ca11d3ff5..7df149d42728 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -388,9 +388,9 @@ static void meson_drv_unbind(struct device *dev)
 	drm_dev_unregister(drm);
 	drm_kms_helper_poll_fini(drm);
 	drm_atomic_helper_shutdown(drm);
-	component_unbind_all(dev, drm);
 	free_irq(priv->vsync_irq, drm);
 	drm_dev_put(drm);
+	component_unbind_all(dev, drm);
 
 	if (priv->afbcd.ops)
 		priv->afbcd.ops->exit(priv);
-- 
2.35.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH AUTOSEL 6.0 35/44] drm/meson: reorder driver deinit sequence to fix use-after-free bug

[Sasha Levin]

From: Adrián Larumbe <adrian.larumbe@collabora.com>

[ Upstream commit 31c519981eb141c7ec39bfd5be25d35f02edb868 ]

Unloading the driver triggers the following KASAN warning:

[  +0.006275] =============================================================
[  +0.000029] BUG: KASAN: use-after-free in __list_del_entry_valid+0xe0/0x1a0
[  +0.000026] Read of size 8 at addr ffff000020c395e0 by task rmmod/2695

[  +0.000019] CPU: 5 PID: 2695 Comm: rmmod Tainted: G         C O      5.19.0-rc6-lrmbkasan+ #1
[  +0.000013] Hardware name: Hardkernel ODROID-N2Plus (DT)
[  +0.000008] Call trace:
[  +0.000007]  dump_backtrace+0x1ec/0x280
[  +0.000013]  show_stack+0x24/0x80
[  +0.000008]  dump_stack_lvl+0x98/0xd4
[  +0.000011]  print_address_description.constprop.0+0x80/0x520
[  +0.000011]  print_report+0x128/0x260
[  +0.000007]  kasan_report+0xb8/0xfc
[  +0.000008]  __asan_report_load8_noabort+0x3c/0x50
[  +0.000010]  __list_del_entry_valid+0xe0/0x1a0
[  +0.000009]  drm_atomic_private_obj_fini+0x30/0x200 [drm]
[  +0.000172]  drm_bridge_detach+0x94/0x260 [drm]
[  +0.000145]  drm_encoder_cleanup+0xa4/0x290 [drm]
[  +0.000144]  drm_mode_config_cleanup+0x118/0x740 [drm]
[  +0.000143]  drm_mode_config_init_release+0x1c/0x2c [drm]
[  +0.000144]  drm_managed_release+0x170/0x414 [drm]
[  +0.000142]  drm_dev_put.part.0+0xc0/0x124 [drm]
[  +0.000143]  drm_dev_put+0x20/0x30 [drm]
[  +0.000142]  meson_drv_unbind+0x1d8/0x2ac [meson_drm]
[  +0.000028]  take_down_aggregate_device+0xb0/0x160
[  +0.000016]  component_del+0x18c/0x360
[  +0.000009]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]
[  +0.000015]  platform_remove+0x64/0xb0
[  +0.000009]  device_remove+0xb8/0x154
[  +0.000009]  device_release_driver_internal+0x398/0x5b0
[  +0.000009]  driver_detach+0xac/0x1b0
[  +0.000009]  bus_remove_driver+0x158/0x29c
[  +0.000009]  driver_unregister+0x70/0xb0
[  +0.000008]  platform_driver_unregister+0x20/0x2c
[  +0.000008]  meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi]
[  +0.000012]  __do_sys_delete_module+0x288/0x400
[  +0.000011]  __arm64_sys_delete_module+0x5c/0x80
[  +0.000009]  invoke_syscall+0x74/0x260
[  +0.000009]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000009]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000012]  el0t_64_sync_handler+0x11c/0x150
[  +0.000008]  el0t_64_sync+0x18c/0x190

[  +0.000018] Allocated by task 0:
[  +0.000007] (stack is not available)

[  +0.000011] Freed by task 2695:
[  +0.000008]  kasan_save_stack+0x2c/0x5c
[  +0.000011]  kasan_set_track+0x2c/0x40
[  +0.000008]  kasan_set_free_info+0x28/0x50
[  +0.000009]  ____kasan_slab_free+0x128/0x1d4
[  +0.000008]  __kasan_slab_free+0x18/0x24
[  +0.000007]  slab_free_freelist_hook+0x108/0x230
[  +0.000011]  kfree+0x110/0x35c
[  +0.000008]  release_nodes+0xf0/0x16c
[  +0.000009]  devres_release_group+0x180/0x270
[  +0.000008]  component_unbind+0x128/0x1e0
[  +0.000010]  component_unbind_all+0x1b8/0x264
[  +0.000009]  meson_drv_unbind+0x1a0/0x2ac [meson_drm]
[  +0.000025]  take_down_aggregate_device+0xb0/0x160
[  +0.000009]  component_del+0x18c/0x360
[  +0.000009]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]
[  +0.000012]  platform_remove+0x64/0xb0
[  +0.000008]  device_remove+0xb8/0x154
[  +0.000009]  device_release_driver_internal+0x398/0x5b0
[  +0.000009]  driver_detach+0xac/0x1b0
[  +0.000009]  bus_remove_driver+0x158/0x29c
[  +0.000008]  driver_unregister+0x70/0xb0
[  +0.000008]  platform_driver_unregister+0x20/0x2c
[  +0.000008]  meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi]
[  +0.000011]  __do_sys_delete_module+0x288/0x400
[  +0.000010]  __arm64_sys_delete_module+0x5c/0x80
[  +0.000008]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000009]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000014] The buggy address belongs to the object at ffff000020c39000
               which belongs to the cache kmalloc-4k of size 4096
[  +0.000008] The buggy address is located 1504 bytes inside of
               4096-byte region [ffff000020c39000, ffff000020c3a000)

[  +0.000016] The buggy address belongs to the physical page:
[  +0.000009] page:fffffc0000830e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x20c38
[  +0.000013] head:fffffc0000830e00 order:3 compound_mapcount:0 compound_pincount:0
[  +0.000008] flags: 0xffff00000010200(slab|head|node=0|zone=0|lastcpupid=0xffff)
[  +0.000019] raw: 0ffff00000010200 fffffc0000fd4808 fffffc0000126208 ffff000000002e80
[  +0.000009] raw: 0000000000000000 0000000000020002 00000001ffffffff 0000000000000000
[  +0.000008] page dumped because: kasan: bad access detected

[  +0.000011] Memory state around the buggy address:
[  +0.000008]  ffff000020c39480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]  ffff000020c39500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007] >ffff000020c39580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]                                                        ^
[  +0.000007]  ffff000020c39600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]  ffff000020c39680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000006] ==================================================================

The reason this is happening is unloading meson-dw-hdmi will cause the
component API to take down the aggregate device, which in turn will cause
all devres-managed memory to be freed, including the struct dw_hdmi
allocated in dw_hdmi_probe. This struct embeds a struct drm_bridge that is
added at the end of the function, and which is later on picked up in
meson_encoder_hdmi_init.

However, when attaching the bridge to the encoder created in
meson_encoder_hdmi_init, it's linked to the encoder's bridge chain, from
where it never leaves, even after devres_release_group is called when the
driver's components are unbound and the embedding structure freed.

Then, when calling drm_dev_put in the aggregate driver's unbind function,
drm_bridge_detach is called for every single bridge linked to the encoder,
including the one whose memory had already been deallocated.

Fix by calling component_unbind_all after drm_dev_put.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220919010940.419893-2-adrian.larumbe@collabora.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/meson/meson_drv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index bd4ca11d3ff5..7df149d42728 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -388,9 +388,9 @@ static void meson_drv_unbind(struct device *dev)
 	drm_dev_unregister(drm);
 	drm_kms_helper_poll_fini(drm);
 	drm_atomic_helper_shutdown(drm);
-	component_unbind_all(dev, drm);
 	free_irq(priv->vsync_irq, drm);
 	drm_dev_put(drm);
+	component_unbind_all(dev, drm);
 
 	if (priv->afbcd.ops)
 		priv->afbcd.ops->exit(priv);
-- 
2.35.1

[PATCH AUTOSEL 6.0 36/44] drm/meson: explicitly remove aggregate driver at module unload time

[Sasha Levin]

From: Adrián Larumbe <adrian.larumbe@collabora.com>

[ Upstream commit 8616f2a0589a80e08434212324250eb22f6a66ce ]

Because component_master_del wasn't being called when unloading the
meson_drm module, the aggregate device would linger forever in the global
aggregate_devices list. That means when unloading and reloading the
meson_dw_hdmi module, component_add would call into
try_to_bring_up_aggregate_device and find the unbound meson_drm aggregate
device.

This would in turn dereference some of the aggregate_device's struct
entries which point to memory automatically freed by the devres API when
unbinding the aggregate device from meson_drv_unbind, and trigger an
use-after-free bug:

[  +0.000014] =============================================================
[  +0.000007] BUG: KASAN: use-after-free in find_components+0x468/0x500
[  +0.000017] Read of size 8 at addr ffff000006731688 by task modprobe/2536
[  +0.000018] CPU: 4 PID: 2536 Comm: modprobe Tainted: G         C O      5.19.0-rc6-lrmbkasan+ #1
[  +0.000010] Hardware name: Hardkernel ODROID-N2Plus (DT)
[  +0.000008] Call trace:
[  +0.000005]  dump_backtrace+0x1ec/0x280
[  +0.000011]  show_stack+0x24/0x80
[  +0.000007]  dump_stack_lvl+0x98/0xd4
[  +0.000010]  print_address_description.constprop.0+0x80/0x520
[  +0.000011]  print_report+0x128/0x260
[  +0.000007]  kasan_report+0xb8/0xfc
[  +0.000007]  __asan_report_load8_noabort+0x3c/0x50
[  +0.000009]  find_components+0x468/0x500
[  +0.000008]  try_to_bring_up_aggregate_device+0x64/0x390
[  +0.000009]  __component_add+0x1dc/0x49c
[  +0.000009]  component_add+0x20/0x30
[  +0.000008]  meson_dw_hdmi_probe+0x28/0x34 [meson_dw_hdmi]
[  +0.000013]  platform_probe+0xd0/0x220
[  +0.000008]  really_probe+0x3ac/0xa80
[  +0.000008]  __driver_probe_device+0x1f8/0x400
[  +0.000008]  driver_probe_device+0x68/0x1b0
[  +0.000008]  __driver_attach+0x20c/0x480
[  +0.000009]  bus_for_each_dev+0x114/0x1b0
[  +0.000007]  driver_attach+0x48/0x64
[  +0.000009]  bus_add_driver+0x390/0x564
[  +0.000007]  driver_register+0x1a8/0x3e4
[  +0.000009]  __platform_driver_register+0x6c/0x94
[  +0.000007]  meson_dw_hdmi_platform_driver_init+0x30/0x1000 [meson_dw_hdmi]
[  +0.000014]  do_one_initcall+0xc4/0x2b0
[  +0.000008]  do_init_module+0x154/0x570
[  +0.000010]  load_module+0x1a78/0x1ea4
[  +0.000008]  __do_sys_init_module+0x184/0x1cc
[  +0.000008]  __arm64_sys_init_module+0x78/0xb0
[  +0.000008]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000009]  do_el0_svc+0x50/0x70
[  +0.000008]  el0_svc+0x68/0x1a0
[  +0.000009]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000014] Allocated by task 902:
[  +0.000007]  kasan_save_stack+0x2c/0x5c
[  +0.000009]  __kasan_kmalloc+0x90/0xd0
[  +0.000007]  __kmalloc_node+0x240/0x580
[  +0.000010]  memcg_alloc_slab_cgroups+0xa4/0x1ac
[  +0.000010]  memcg_slab_post_alloc_hook+0xbc/0x4c0
[  +0.000008]  kmem_cache_alloc_node+0x1d0/0x490
[  +0.000009]  __alloc_skb+0x1d4/0x310
[  +0.000010]  alloc_skb_with_frags+0x8c/0x620
[  +0.000008]  sock_alloc_send_pskb+0x5ac/0x6d0
[  +0.000010]  unix_dgram_sendmsg+0x2e0/0x12f0
[  +0.000010]  sock_sendmsg+0xcc/0x110
[  +0.000007]  sock_write_iter+0x1d0/0x304
[  +0.000008]  new_sync_write+0x364/0x460
[  +0.000007]  vfs_write+0x420/0x5ac
[  +0.000008]  ksys_write+0x19c/0x1f0
[  +0.000008]  __arm64_sys_write+0x78/0xb0
[  +0.000007]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0x1a8/0x260
[  +0.000009]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000008]  el0t_64_sync_handler+0x11c/0x150
[  +0.000008]  el0t_64_sync+0x18c/0x190

[  +0.000013] Freed by task 2509:
[  +0.000008]  kasan_save_stack+0x2c/0x5c
[  +0.000007]  kasan_set_track+0x2c/0x40
[  +0.000008]  kasan_set_free_info+0x28/0x50
[  +0.000008]  ____kasan_slab_free+0x128/0x1d4
[  +0.000008]  __kasan_slab_free+0x18/0x24
[  +0.000007]  slab_free_freelist_hook+0x108/0x230
[  +0.000010]  kfree+0x110/0x35c
[  +0.000008]  release_nodes+0xf0/0x16c
[  +0.000008]  devres_release_all+0xfc/0x180
[  +0.000008]  device_unbind_cleanup+0x24/0x164
[  +0.000008]  device_release_driver_internal+0x3e8/0x5b0
[  +0.000010]  driver_detach+0xac/0x1b0
[  +0.000008]  bus_remove_driver+0x158/0x29c
[  +0.000008]  driver_unregister+0x70/0xb0
[  +0.000009]  platform_driver_unregister+0x20/0x2c
[  +0.000007]  0xffff800003722d98
[  +0.000012]  __do_sys_delete_module+0x288/0x400
[  +0.000009]  __arm64_sys_delete_module+0x5c/0x80
[  +0.000008]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000008]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000013] Last potentially related work creation:
[  +0.000007]  kasan_save_stack+0x2c/0x5c
[  +0.000007]  __kasan_record_aux_stack+0xb8/0xf0
[  +0.000009]  kasan_record_aux_stack_noalloc+0x14/0x20
[  +0.000008]  insert_work+0x54/0x290
[  +0.000009]  __queue_work+0x48c/0xd24
[  +0.000008]  queue_work_on+0x90/0x11c
[  +0.000008]  call_usermodehelper_exec+0x188/0x404
[  +0.000010]  kobject_uevent_env+0x5a8/0x794
[  +0.000010]  kobject_uevent+0x14/0x20
[  +0.000008]  driver_register+0x230/0x3e4
[  +0.000009]  __platform_driver_register+0x6c/0x94
[  +0.000007]  gxbb_driver_init+0x28/0x34
[  +0.000010]  do_one_initcall+0xc4/0x2b0
[  +0.000008]  do_initcalls+0x20c/0x24c
[  +0.000010]  kernel_init_freeable+0x22c/0x278
[  +0.000009]  kernel_init+0x3c/0x170
[  +0.000008]  ret_from_fork+0x10/0x20

[  +0.000013] The buggy address belongs to the object at ffff000006731600
               which belongs to the cache kmalloc-256 of size 256
[  +0.000009] The buggy address is located 136 bytes inside of
               256-byte region [ffff000006731600, ffff000006731700)

[  +0.000015] The buggy address belongs to the physical page:
[  +0.000008] page:fffffc000019cc00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff000006730a00 pfn:0x6730
[  +0.000011] head:fffffc000019cc00 order:2 compound_mapcount:0 compound_pincount:0
[  +0.000008] flags: 0xffff00000010200(slab|head|node=0|zone=0|lastcpupid=0xffff)
[  +0.000016] raw: 0ffff00000010200 fffffc00000c3d08 fffffc0000ef2b08 ffff000000002680
[  +0.000009] raw: ffff000006730a00 0000000000150014 00000001ffffffff 0000000000000000
[  +0.000006] page dumped because: kasan: bad access detected

[  +0.000011] Memory state around the buggy address:
[  +0.000007]  ffff000006731580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  +0.000007]  ffff000006731600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007] >ffff000006731680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]                       ^
[  +0.000006]  ffff000006731700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  +0.000007]  ffff000006731780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  +0.000006] ==================================================================

Fix by adding 'remove' driver callback for meson-drm, and explicitly deleting the
aggregate device.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220919010940.419893-3-adrian.larumbe@collabora.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/meson/meson_drv.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index 7df149d42728..8444d90165fb 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -493,6 +493,13 @@ static int meson_drv_probe(struct platform_device *pdev)
 	return 0;
 };
 
+static int meson_drv_remove(struct platform_device *pdev)
+{
+	component_master_del(&pdev->dev, &meson_drv_master_ops);
+
+	return 0;
+}
+
 static struct meson_drm_match_data meson_drm_gxbb_data = {
 	.compat = VPU_COMPATIBLE_GXBB,
 };
@@ -530,6 +537,7 @@ static const struct dev_pm_ops meson_drv_pm_ops = {
 
 static struct platform_driver meson_drm_platform_driver = {
 	.probe      = meson_drv_probe,
+	.remove     = meson_drv_remove,
 	.shutdown   = meson_drv_shutdown,
 	.driver     = {
 		.name	= "meson-drm",
-- 
2.35.1

[PATCH AUTOSEL 6.0 36/44] drm/meson: explicitly remove aggregate driver at module unload time

[Sasha Levin]

From: Adrián Larumbe <adrian.larumbe@collabora.com>

[ Upstream commit 8616f2a0589a80e08434212324250eb22f6a66ce ]

Because component_master_del wasn't being called when unloading the
meson_drm module, the aggregate device would linger forever in the global
aggregate_devices list. That means when unloading and reloading the
meson_dw_hdmi module, component_add would call into
try_to_bring_up_aggregate_device and find the unbound meson_drm aggregate
device.

This would in turn dereference some of the aggregate_device's struct
entries which point to memory automatically freed by the devres API when
unbinding the aggregate device from meson_drv_unbind, and trigger an
use-after-free bug:

[  +0.000014] =============================================================
[  +0.000007] BUG: KASAN: use-after-free in find_components+0x468/0x500
[  +0.000017] Read of size 8 at addr ffff000006731688 by task modprobe/2536
[  +0.000018] CPU: 4 PID: 2536 Comm: modprobe Tainted: G         C O      5.19.0-rc6-lrmbkasan+ #1
[  +0.000010] Hardware name: Hardkernel ODROID-N2Plus (DT)
[  +0.000008] Call trace:
[  +0.000005]  dump_backtrace+0x1ec/0x280
[  +0.000011]  show_stack+0x24/0x80
[  +0.000007]  dump_stack_lvl+0x98/0xd4
[  +0.000010]  print_address_description.constprop.0+0x80/0x520
[  +0.000011]  print_report+0x128/0x260
[  +0.000007]  kasan_report+0xb8/0xfc
[  +0.000007]  __asan_report_load8_noabort+0x3c/0x50
[  +0.000009]  find_components+0x468/0x500
[  +0.000008]  try_to_bring_up_aggregate_device+0x64/0x390
[  +0.000009]  __component_add+0x1dc/0x49c
[  +0.000009]  component_add+0x20/0x30
[  +0.000008]  meson_dw_hdmi_probe+0x28/0x34 [meson_dw_hdmi]
[  +0.000013]  platform_probe+0xd0/0x220
[  +0.000008]  really_probe+0x3ac/0xa80
[  +0.000008]  __driver_probe_device+0x1f8/0x400
[  +0.000008]  driver_probe_device+0x68/0x1b0
[  +0.000008]  __driver_attach+0x20c/0x480
[  +0.000009]  bus_for_each_dev+0x114/0x1b0
[  +0.000007]  driver_attach+0x48/0x64
[  +0.000009]  bus_add_driver+0x390/0x564
[  +0.000007]  driver_register+0x1a8/0x3e4
[  +0.000009]  __platform_driver_register+0x6c/0x94
[  +0.000007]  meson_dw_hdmi_platform_driver_init+0x30/0x1000 [meson_dw_hdmi]
[  +0.000014]  do_one_initcall+0xc4/0x2b0
[  +0.000008]  do_init_module+0x154/0x570
[  +0.000010]  load_module+0x1a78/0x1ea4
[  +0.000008]  __do_sys_init_module+0x184/0x1cc
[  +0.000008]  __arm64_sys_init_module+0x78/0xb0
[  +0.000008]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000009]  do_el0_svc+0x50/0x70
[  +0.000008]  el0_svc+0x68/0x1a0
[  +0.000009]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000014] Allocated by task 902:
[  +0.000007]  kasan_save_stack+0x2c/0x5c
[  +0.000009]  __kasan_kmalloc+0x90/0xd0
[  +0.000007]  __kmalloc_node+0x240/0x580
[  +0.000010]  memcg_alloc_slab_cgroups+0xa4/0x1ac
[  +0.000010]  memcg_slab_post_alloc_hook+0xbc/0x4c0
[  +0.000008]  kmem_cache_alloc_node+0x1d0/0x490
[  +0.000009]  __alloc_skb+0x1d4/0x310
[  +0.000010]  alloc_skb_with_frags+0x8c/0x620
[  +0.000008]  sock_alloc_send_pskb+0x5ac/0x6d0
[  +0.000010]  unix_dgram_sendmsg+0x2e0/0x12f0
[  +0.000010]  sock_sendmsg+0xcc/0x110
[  +0.000007]  sock_write_iter+0x1d0/0x304
[  +0.000008]  new_sync_write+0x364/0x460
[  +0.000007]  vfs_write+0x420/0x5ac
[  +0.000008]  ksys_write+0x19c/0x1f0
[  +0.000008]  __arm64_sys_write+0x78/0xb0
[  +0.000007]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0x1a8/0x260
[  +0.000009]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000008]  el0t_64_sync_handler+0x11c/0x150
[  +0.000008]  el0t_64_sync+0x18c/0x190

[  +0.000013] Freed by task 2509:
[  +0.000008]  kasan_save_stack+0x2c/0x5c
[  +0.000007]  kasan_set_track+0x2c/0x40
[  +0.000008]  kasan_set_free_info+0x28/0x50
[  +0.000008]  ____kasan_slab_free+0x128/0x1d4
[  +0.000008]  __kasan_slab_free+0x18/0x24
[  +0.000007]  slab_free_freelist_hook+0x108/0x230
[  +0.000010]  kfree+0x110/0x35c
[  +0.000008]  release_nodes+0xf0/0x16c
[  +0.000008]  devres_release_all+0xfc/0x180
[  +0.000008]  device_unbind_cleanup+0x24/0x164
[  +0.000008]  device_release_driver_internal+0x3e8/0x5b0
[  +0.000010]  driver_detach+0xac/0x1b0
[  +0.000008]  bus_remove_driver+0x158/0x29c
[  +0.000008]  driver_unregister+0x70/0xb0
[  +0.000009]  platform_driver_unregister+0x20/0x2c
[  +0.000007]  0xffff800003722d98
[  +0.000012]  __do_sys_delete_module+0x288/0x400
[  +0.000009]  __arm64_sys_delete_module+0x5c/0x80
[  +0.000008]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000008]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000013] Last potentially related work creation:
[  +0.000007]  kasan_save_stack+0x2c/0x5c
[  +0.000007]  __kasan_record_aux_stack+0xb8/0xf0
[  +0.000009]  kasan_record_aux_stack_noalloc+0x14/0x20
[  +0.000008]  insert_work+0x54/0x290
[  +0.000009]  __queue_work+0x48c/0xd24
[  +0.000008]  queue_work_on+0x90/0x11c
[  +0.000008]  call_usermodehelper_exec+0x188/0x404
[  +0.000010]  kobject_uevent_env+0x5a8/0x794
[  +0.000010]  kobject_uevent+0x14/0x20
[  +0.000008]  driver_register+0x230/0x3e4
[  +0.000009]  __platform_driver_register+0x6c/0x94
[  +0.000007]  gxbb_driver_init+0x28/0x34
[  +0.000010]  do_one_initcall+0xc4/0x2b0
[  +0.000008]  do_initcalls+0x20c/0x24c
[  +0.000010]  kernel_init_freeable+0x22c/0x278
[  +0.000009]  kernel_init+0x3c/0x170
[  +0.000008]  ret_from_fork+0x10/0x20

[  +0.000013] The buggy address belongs to the object at ffff000006731600
               which belongs to the cache kmalloc-256 of size 256
[  +0.000009] The buggy address is located 136 bytes inside of
               256-byte region [ffff000006731600, ffff000006731700)

[  +0.000015] The buggy address belongs to the physical page:
[  +0.000008] page:fffffc000019cc00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff000006730a00 pfn:0x6730
[  +0.000011] head:fffffc000019cc00 order:2 compound_mapcount:0 compound_pincount:0
[  +0.000008] flags: 0xffff00000010200(slab|head|node=0|zone=0|lastcpupid=0xffff)
[  +0.000016] raw: 0ffff00000010200 fffffc00000c3d08 fffffc0000ef2b08 ffff000000002680
[  +0.000009] raw: ffff000006730a00 0000000000150014 00000001ffffffff 0000000000000000
[  +0.000006] page dumped because: kasan: bad access detected

[  +0.000011] Memory state around the buggy address:
[  +0.000007]  ffff000006731580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  +0.000007]  ffff000006731600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007] >ffff000006731680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]                       ^
[  +0.000006]  ffff000006731700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  +0.000007]  ffff000006731780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  +0.000006] ==================================================================

Fix by adding 'remove' driver callback for meson-drm, and explicitly deleting the
aggregate device.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220919010940.419893-3-adrian.larumbe@collabora.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/meson/meson_drv.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index 7df149d42728..8444d90165fb 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -493,6 +493,13 @@ static int meson_drv_probe(struct platform_device *pdev)
 	return 0;
 };
 
+static int meson_drv_remove(struct platform_device *pdev)
+{
+	component_master_del(&pdev->dev, &meson_drv_master_ops);
+
+	return 0;
+}
+
 static struct meson_drm_match_data meson_drm_gxbb_data = {
 	.compat = VPU_COMPATIBLE_GXBB,
 };
@@ -530,6 +537,7 @@ static const struct dev_pm_ops meson_drv_pm_ops = {
 
 static struct platform_driver meson_drm_platform_driver = {
 	.probe      = meson_drv_probe,
+	.remove     = meson_drv_remove,
 	.shutdown   = meson_drv_shutdown,
 	.driver     = {
 		.name	= "meson-drm",
-- 
2.35.1


_______________________________________________
linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic

[PATCH AUTOSEL 6.0 36/44] drm/meson: explicitly remove aggregate driver at module unload time

[Sasha Levin]

From: Adrián Larumbe <adrian.larumbe@collabora.com>

[ Upstream commit 8616f2a0589a80e08434212324250eb22f6a66ce ]

Because component_master_del wasn't being called when unloading the
meson_drm module, the aggregate device would linger forever in the global
aggregate_devices list. That means when unloading and reloading the
meson_dw_hdmi module, component_add would call into
try_to_bring_up_aggregate_device and find the unbound meson_drm aggregate
device.

This would in turn dereference some of the aggregate_device's struct
entries which point to memory automatically freed by the devres API when
unbinding the aggregate device from meson_drv_unbind, and trigger an
use-after-free bug:

[  +0.000014] =============================================================
[  +0.000007] BUG: KASAN: use-after-free in find_components+0x468/0x500
[  +0.000017] Read of size 8 at addr ffff000006731688 by task modprobe/2536
[  +0.000018] CPU: 4 PID: 2536 Comm: modprobe Tainted: G         C O      5.19.0-rc6-lrmbkasan+ #1
[  +0.000010] Hardware name: Hardkernel ODROID-N2Plus (DT)
[  +0.000008] Call trace:
[  +0.000005]  dump_backtrace+0x1ec/0x280
[  +0.000011]  show_stack+0x24/0x80
[  +0.000007]  dump_stack_lvl+0x98/0xd4
[  +0.000010]  print_address_description.constprop.0+0x80/0x520
[  +0.000011]  print_report+0x128/0x260
[  +0.000007]  kasan_report+0xb8/0xfc
[  +0.000007]  __asan_report_load8_noabort+0x3c/0x50
[  +0.000009]  find_components+0x468/0x500
[  +0.000008]  try_to_bring_up_aggregate_device+0x64/0x390
[  +0.000009]  __component_add+0x1dc/0x49c
[  +0.000009]  component_add+0x20/0x30
[  +0.000008]  meson_dw_hdmi_probe+0x28/0x34 [meson_dw_hdmi]
[  +0.000013]  platform_probe+0xd0/0x220
[  +0.000008]  really_probe+0x3ac/0xa80
[  +0.000008]  __driver_probe_device+0x1f8/0x400
[  +0.000008]  driver_probe_device+0x68/0x1b0
[  +0.000008]  __driver_attach+0x20c/0x480
[  +0.000009]  bus_for_each_dev+0x114/0x1b0
[  +0.000007]  driver_attach+0x48/0x64
[  +0.000009]  bus_add_driver+0x390/0x564
[  +0.000007]  driver_register+0x1a8/0x3e4
[  +0.000009]  __platform_driver_register+0x6c/0x94
[  +0.000007]  meson_dw_hdmi_platform_driver_init+0x30/0x1000 [meson_dw_hdmi]
[  +0.000014]  do_one_initcall+0xc4/0x2b0
[  +0.000008]  do_init_module+0x154/0x570
[  +0.000010]  load_module+0x1a78/0x1ea4
[  +0.000008]  __do_sys_init_module+0x184/0x1cc
[  +0.000008]  __arm64_sys_init_module+0x78/0xb0
[  +0.000008]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000009]  do_el0_svc+0x50/0x70
[  +0.000008]  el0_svc+0x68/0x1a0
[  +0.000009]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000014] Allocated by task 902:
[  +0.000007]  kasan_save_stack+0x2c/0x5c
[  +0.000009]  __kasan_kmalloc+0x90/0xd0
[  +0.000007]  __kmalloc_node+0x240/0x580
[  +0.000010]  memcg_alloc_slab_cgroups+0xa4/0x1ac
[  +0.000010]  memcg_slab_post_alloc_hook+0xbc/0x4c0
[  +0.000008]  kmem_cache_alloc_node+0x1d0/0x490
[  +0.000009]  __alloc_skb+0x1d4/0x310
[  +0.000010]  alloc_skb_with_frags+0x8c/0x620
[  +0.000008]  sock_alloc_send_pskb+0x5ac/0x6d0
[  +0.000010]  unix_dgram_sendmsg+0x2e0/0x12f0
[  +0.000010]  sock_sendmsg+0xcc/0x110
[  +0.000007]  sock_write_iter+0x1d0/0x304
[  +0.000008]  new_sync_write+0x364/0x460
[  +0.000007]  vfs_write+0x420/0x5ac
[  +0.000008]  ksys_write+0x19c/0x1f0
[  +0.000008]  __arm64_sys_write+0x78/0xb0
[  +0.000007]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0x1a8/0x260
[  +0.000009]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000008]  el0t_64_sync_handler+0x11c/0x150
[  +0.000008]  el0t_64_sync+0x18c/0x190

[  +0.000013] Freed by task 2509:
[  +0.000008]  kasan_save_stack+0x2c/0x5c
[  +0.000007]  kasan_set_track+0x2c/0x40
[  +0.000008]  kasan_set_free_info+0x28/0x50
[  +0.000008]  ____kasan_slab_free+0x128/0x1d4
[  +0.000008]  __kasan_slab_free+0x18/0x24
[  +0.000007]  slab_free_freelist_hook+0x108/0x230
[  +0.000010]  kfree+0x110/0x35c
[  +0.000008]  release_nodes+0xf0/0x16c
[  +0.000008]  devres_release_all+0xfc/0x180
[  +0.000008]  device_unbind_cleanup+0x24/0x164
[  +0.000008]  device_release_driver_internal+0x3e8/0x5b0
[  +0.000010]  driver_detach+0xac/0x1b0
[  +0.000008]  bus_remove_driver+0x158/0x29c
[  +0.000008]  driver_unregister+0x70/0xb0
[  +0.000009]  platform_driver_unregister+0x20/0x2c
[  +0.000007]  0xffff800003722d98
[  +0.000012]  __do_sys_delete_module+0x288/0x400
[  +0.000009]  __arm64_sys_delete_module+0x5c/0x80
[  +0.000008]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000008]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000013] Last potentially related work creation:
[  +0.000007]  kasan_save_stack+0x2c/0x5c
[  +0.000007]  __kasan_record_aux_stack+0xb8/0xf0
[  +0.000009]  kasan_record_aux_stack_noalloc+0x14/0x20
[  +0.000008]  insert_work+0x54/0x290
[  +0.000009]  __queue_work+0x48c/0xd24
[  +0.000008]  queue_work_on+0x90/0x11c
[  +0.000008]  call_usermodehelper_exec+0x188/0x404
[  +0.000010]  kobject_uevent_env+0x5a8/0x794
[  +0.000010]  kobject_uevent+0x14/0x20
[  +0.000008]  driver_register+0x230/0x3e4
[  +0.000009]  __platform_driver_register+0x6c/0x94
[  +0.000007]  gxbb_driver_init+0x28/0x34
[  +0.000010]  do_one_initcall+0xc4/0x2b0
[  +0.000008]  do_initcalls+0x20c/0x24c
[  +0.000010]  kernel_init_freeable+0x22c/0x278
[  +0.000009]  kernel_init+0x3c/0x170
[  +0.000008]  ret_from_fork+0x10/0x20

[  +0.000013] The buggy address belongs to the object at ffff000006731600
               which belongs to the cache kmalloc-256 of size 256
[  +0.000009] The buggy address is located 136 bytes inside of
               256-byte region [ffff000006731600, ffff000006731700)

[  +0.000015] The buggy address belongs to the physical page:
[  +0.000008] page:fffffc000019cc00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff000006730a00 pfn:0x6730
[  +0.000011] head:fffffc000019cc00 order:2 compound_mapcount:0 compound_pincount:0
[  +0.000008] flags: 0xffff00000010200(slab|head|node=0|zone=0|lastcpupid=0xffff)
[  +0.000016] raw: 0ffff00000010200 fffffc00000c3d08 fffffc0000ef2b08 ffff000000002680
[  +0.000009] raw: ffff000006730a00 0000000000150014 00000001ffffffff 0000000000000000
[  +0.000006] page dumped because: kasan: bad access detected

[  +0.000011] Memory state around the buggy address:
[  +0.000007]  ffff000006731580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  +0.000007]  ffff000006731600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007] >ffff000006731680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]                       ^
[  +0.000006]  ffff000006731700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  +0.000007]  ffff000006731780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  +0.000006] ==================================================================

Fix by adding 'remove' driver callback for meson-drm, and explicitly deleting the
aggregate device.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220919010940.419893-3-adrian.larumbe@collabora.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/meson/meson_drv.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index 7df149d42728..8444d90165fb 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -493,6 +493,13 @@ static int meson_drv_probe(struct platform_device *pdev)
 	return 0;
 };
 
+static int meson_drv_remove(struct platform_device *pdev)
+{
+	component_master_del(&pdev->dev, &meson_drv_master_ops);
+
+	return 0;
+}
+
 static struct meson_drm_match_data meson_drm_gxbb_data = {
 	.compat = VPU_COMPATIBLE_GXBB,
 };
@@ -530,6 +537,7 @@ static const struct dev_pm_ops meson_drv_pm_ops = {
 
 static struct platform_driver meson_drm_platform_driver = {
 	.probe      = meson_drv_probe,
+	.remove     = meson_drv_remove,
 	.shutdown   = meson_drv_shutdown,
 	.driver     = {
 		.name	= "meson-drm",
-- 
2.35.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH AUTOSEL 6.0 36/44] drm/meson: explicitly remove aggregate driver at module unload time

[Sasha Levin]

From: Adrián Larumbe <adrian.larumbe@collabora.com>

[ Upstream commit 8616f2a0589a80e08434212324250eb22f6a66ce ]

Because component_master_del wasn't being called when unloading the
meson_drm module, the aggregate device would linger forever in the global
aggregate_devices list. That means when unloading and reloading the
meson_dw_hdmi module, component_add would call into
try_to_bring_up_aggregate_device and find the unbound meson_drm aggregate
device.

This would in turn dereference some of the aggregate_device's struct
entries which point to memory automatically freed by the devres API when
unbinding the aggregate device from meson_drv_unbind, and trigger an
use-after-free bug:

[  +0.000014] =============================================================
[  +0.000007] BUG: KASAN: use-after-free in find_components+0x468/0x500
[  +0.000017] Read of size 8 at addr ffff000006731688 by task modprobe/2536
[  +0.000018] CPU: 4 PID: 2536 Comm: modprobe Tainted: G         C O      5.19.0-rc6-lrmbkasan+ #1
[  +0.000010] Hardware name: Hardkernel ODROID-N2Plus (DT)
[  +0.000008] Call trace:
[  +0.000005]  dump_backtrace+0x1ec/0x280
[  +0.000011]  show_stack+0x24/0x80
[  +0.000007]  dump_stack_lvl+0x98/0xd4
[  +0.000010]  print_address_description.constprop.0+0x80/0x520
[  +0.000011]  print_report+0x128/0x260
[  +0.000007]  kasan_report+0xb8/0xfc
[  +0.000007]  __asan_report_load8_noabort+0x3c/0x50
[  +0.000009]  find_components+0x468/0x500
[  +0.000008]  try_to_bring_up_aggregate_device+0x64/0x390
[  +0.000009]  __component_add+0x1dc/0x49c
[  +0.000009]  component_add+0x20/0x30
[  +0.000008]  meson_dw_hdmi_probe+0x28/0x34 [meson_dw_hdmi]
[  +0.000013]  platform_probe+0xd0/0x220
[  +0.000008]  really_probe+0x3ac/0xa80
[  +0.000008]  __driver_probe_device+0x1f8/0x400
[  +0.000008]  driver_probe_device+0x68/0x1b0
[  +0.000008]  __driver_attach+0x20c/0x480
[  +0.000009]  bus_for_each_dev+0x114/0x1b0
[  +0.000007]  driver_attach+0x48/0x64
[  +0.000009]  bus_add_driver+0x390/0x564
[  +0.000007]  driver_register+0x1a8/0x3e4
[  +0.000009]  __platform_driver_register+0x6c/0x94
[  +0.000007]  meson_dw_hdmi_platform_driver_init+0x30/0x1000 [meson_dw_hdmi]
[  +0.000014]  do_one_initcall+0xc4/0x2b0
[  +0.000008]  do_init_module+0x154/0x570
[  +0.000010]  load_module+0x1a78/0x1ea4
[  +0.000008]  __do_sys_init_module+0x184/0x1cc
[  +0.000008]  __arm64_sys_init_module+0x78/0xb0
[  +0.000008]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000009]  do_el0_svc+0x50/0x70
[  +0.000008]  el0_svc+0x68/0x1a0
[  +0.000009]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000014] Allocated by task 902:
[  +0.000007]  kasan_save_stack+0x2c/0x5c
[  +0.000009]  __kasan_kmalloc+0x90/0xd0
[  +0.000007]  __kmalloc_node+0x240/0x580
[  +0.000010]  memcg_alloc_slab_cgroups+0xa4/0x1ac
[  +0.000010]  memcg_slab_post_alloc_hook+0xbc/0x4c0
[  +0.000008]  kmem_cache_alloc_node+0x1d0/0x490
[  +0.000009]  __alloc_skb+0x1d4/0x310
[  +0.000010]  alloc_skb_with_frags+0x8c/0x620
[  +0.000008]  sock_alloc_send_pskb+0x5ac/0x6d0
[  +0.000010]  unix_dgram_sendmsg+0x2e0/0x12f0
[  +0.000010]  sock_sendmsg+0xcc/0x110
[  +0.000007]  sock_write_iter+0x1d0/0x304
[  +0.000008]  new_sync_write+0x364/0x460
[  +0.000007]  vfs_write+0x420/0x5ac
[  +0.000008]  ksys_write+0x19c/0x1f0
[  +0.000008]  __arm64_sys_write+0x78/0xb0
[  +0.000007]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0x1a8/0x260
[  +0.000009]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000008]  el0t_64_sync_handler+0x11c/0x150
[  +0.000008]  el0t_64_sync+0x18c/0x190

[  +0.000013] Freed by task 2509:
[  +0.000008]  kasan_save_stack+0x2c/0x5c
[  +0.000007]  kasan_set_track+0x2c/0x40
[  +0.000008]  kasan_set_free_info+0x28/0x50
[  +0.000008]  ____kasan_slab_free+0x128/0x1d4
[  +0.000008]  __kasan_slab_free+0x18/0x24
[  +0.000007]  slab_free_freelist_hook+0x108/0x230
[  +0.000010]  kfree+0x110/0x35c
[  +0.000008]  release_nodes+0xf0/0x16c
[  +0.000008]  devres_release_all+0xfc/0x180
[  +0.000008]  device_unbind_cleanup+0x24/0x164
[  +0.000008]  device_release_driver_internal+0x3e8/0x5b0
[  +0.000010]  driver_detach+0xac/0x1b0
[  +0.000008]  bus_remove_driver+0x158/0x29c
[  +0.000008]  driver_unregister+0x70/0xb0
[  +0.000009]  platform_driver_unregister+0x20/0x2c
[  +0.000007]  0xffff800003722d98
[  +0.000012]  __do_sys_delete_module+0x288/0x400
[  +0.000009]  __arm64_sys_delete_module+0x5c/0x80
[  +0.000008]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000008]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000013] Last potentially related work creation:
[  +0.000007]  kasan_save_stack+0x2c/0x5c
[  +0.000007]  __kasan_record_aux_stack+0xb8/0xf0
[  +0.000009]  kasan_record_aux_stack_noalloc+0x14/0x20
[  +0.000008]  insert_work+0x54/0x290
[  +0.000009]  __queue_work+0x48c/0xd24
[  +0.000008]  queue_work_on+0x90/0x11c
[  +0.000008]  call_usermodehelper_exec+0x188/0x404
[  +0.000010]  kobject_uevent_env+0x5a8/0x794
[  +0.000010]  kobject_uevent+0x14/0x20
[  +0.000008]  driver_register+0x230/0x3e4
[  +0.000009]  __platform_driver_register+0x6c/0x94
[  +0.000007]  gxbb_driver_init+0x28/0x34
[  +0.000010]  do_one_initcall+0xc4/0x2b0
[  +0.000008]  do_initcalls+0x20c/0x24c
[  +0.000010]  kernel_init_freeable+0x22c/0x278
[  +0.000009]  kernel_init+0x3c/0x170
[  +0.000008]  ret_from_fork+0x10/0x20

[  +0.000013] The buggy address belongs to the object at ffff000006731600
               which belongs to the cache kmalloc-256 of size 256
[  +0.000009] The buggy address is located 136 bytes inside of
               256-byte region [ffff000006731600, ffff000006731700)

[  +0.000015] The buggy address belongs to the physical page:
[  +0.000008] page:fffffc000019cc00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff000006730a00 pfn:0x6730
[  +0.000011] head:fffffc000019cc00 order:2 compound_mapcount:0 compound_pincount:0
[  +0.000008] flags: 0xffff00000010200(slab|head|node=0|zone=0|lastcpupid=0xffff)
[  +0.000016] raw: 0ffff00000010200 fffffc00000c3d08 fffffc0000ef2b08 ffff000000002680
[  +0.000009] raw: ffff000006730a00 0000000000150014 00000001ffffffff 0000000000000000
[  +0.000006] page dumped because: kasan: bad access detected

[  +0.000011] Memory state around the buggy address:
[  +0.000007]  ffff000006731580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  +0.000007]  ffff000006731600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007] >ffff000006731680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]                       ^
[  +0.000006]  ffff000006731700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  +0.000007]  ffff000006731780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  +0.000006] ==================================================================

Fix by adding 'remove' driver callback for meson-drm, and explicitly deleting the
aggregate device.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220919010940.419893-3-adrian.larumbe@collabora.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/meson/meson_drv.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index 7df149d42728..8444d90165fb 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -493,6 +493,13 @@ static int meson_drv_probe(struct platform_device *pdev)
 	return 0;
 };
 
+static int meson_drv_remove(struct platform_device *pdev)
+{
+	component_master_del(&pdev->dev, &meson_drv_master_ops);
+
+	return 0;
+}
+
 static struct meson_drm_match_data meson_drm_gxbb_data = {
 	.compat = VPU_COMPATIBLE_GXBB,
 };
@@ -530,6 +537,7 @@ static const struct dev_pm_ops meson_drv_pm_ops = {
 
 static struct platform_driver meson_drm_platform_driver = {
 	.probe      = meson_drv_probe,
+	.remove     = meson_drv_remove,
 	.shutdown   = meson_drv_shutdown,
 	.driver     = {
 		.name	= "meson-drm",
-- 
2.35.1

[PATCH AUTOSEL 6.0 37/44] drm/meson: remove drm bridges at aggregate driver unbind time

[Sasha Levin]

From: Adrián Larumbe <adrian.larumbe@collabora.com>

[ Upstream commit 09847723c12fc2753749cec3939a02ee92dac468 ]

drm bridges added by meson_encoder_hdmi_init and meson_encoder_cvbs_init
were not manually removed at module unload time, which caused dangling
references to freed memory to remain linked in the global bridge_list.

When loading the driver modules back in, the same functions would again
call drm_bridge_add, and when traversing the global bridge_list, would
end up peeking into freed memory.

Once again KASAN revealed the problem:

[  +0.000095] =============================================================
[  +0.000008] BUG: KASAN: use-after-free in __list_add_valid+0x9c/0x120
[  +0.000018] Read of size 8 at addr ffff00003da291f0 by task modprobe/2483

[  +0.000018] CPU: 3 PID: 2483 Comm: modprobe Tainted: G         C O      5.19.0-rc6-lrmbkasan+ #1
[  +0.000011] Hardware name: Hardkernel ODROID-N2Plus (DT)
[  +0.000008] Call trace:
[  +0.000006]  dump_backtrace+0x1ec/0x280
[  +0.000012]  show_stack+0x24/0x80
[  +0.000008]  dump_stack_lvl+0x98/0xd4
[  +0.000011]  print_address_description.constprop.0+0x80/0x520
[  +0.000011]  print_report+0x128/0x260
[  +0.000008]  kasan_report+0xb8/0xfc
[  +0.000008]  __asan_report_load8_noabort+0x3c/0x50
[  +0.000009]  __list_add_valid+0x9c/0x120
[  +0.000009]  drm_bridge_add+0x6c/0x104 [drm]
[  +0.000165]  dw_hdmi_probe+0x1900/0x2360 [dw_hdmi]
[  +0.000022]  meson_dw_hdmi_bind+0x520/0x814 [meson_dw_hdmi]
[  +0.000014]  component_bind+0x174/0x520
[  +0.000012]  component_bind_all+0x1a8/0x38c
[  +0.000010]  meson_drv_bind_master+0x5e8/0xb74 [meson_drm]
[  +0.000032]  meson_drv_bind+0x20/0x2c [meson_drm]
[  +0.000027]  try_to_bring_up_aggregate_device+0x19c/0x390
[  +0.000010]  component_master_add_with_match+0x1c8/0x284
[  +0.000009]  meson_drv_probe+0x274/0x280 [meson_drm]
[  +0.000026]  platform_probe+0xd0/0x220
[  +0.000009]  really_probe+0x3ac/0xa80
[  +0.000009]  __driver_probe_device+0x1f8/0x400
[  +0.000009]  driver_probe_device+0x68/0x1b0
[  +0.000009]  __driver_attach+0x20c/0x480
[  +0.000008]  bus_for_each_dev+0x114/0x1b0
[  +0.000009]  driver_attach+0x48/0x64
[  +0.000008]  bus_add_driver+0x390/0x564
[  +0.000009]  driver_register+0x1a8/0x3e4
[  +0.000009]  __platform_driver_register+0x6c/0x94
[  +0.000008]  meson_drm_platform_driver_init+0x3c/0x1000 [meson_drm]
[  +0.000027]  do_one_initcall+0xc4/0x2b0
[  +0.000011]  do_init_module+0x154/0x570
[  +0.000011]  load_module+0x1a78/0x1ea4
[  +0.000008]  __do_sys_init_module+0x184/0x1cc
[  +0.000009]  __arm64_sys_init_module+0x78/0xb0
[  +0.000009]  invoke_syscall+0x74/0x260
[  +0.000009]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000012]  el0t_64_sync_handler+0x11c/0x150
[  +0.000008]  el0t_64_sync+0x18c/0x190

[  +0.000016] Allocated by task 879:
[  +0.000008]  kasan_save_stack+0x2c/0x5c
[  +0.000011]  __kasan_kmalloc+0x90/0xd0
[  +0.000007]  __kmalloc+0x278/0x4a0
[  +0.000011]  mpi_resize+0x13c/0x1d0
[  +0.000011]  mpi_powm+0xd24/0x1570
[  +0.000009]  rsa_enc+0x1a4/0x30c
[  +0.000009]  pkcs1pad_verify+0x3f0/0x580
[  +0.000009]  public_key_verify_signature+0x7a8/0xba4
[  +0.000010]  public_key_verify_signature_2+0x40/0x60
[  +0.000008]  verify_signature+0xb4/0x114
[  +0.000008]  pkcs7_validate_trust_one.constprop.0+0x3b8/0x574
[  +0.000009]  pkcs7_validate_trust+0xb8/0x15c
[  +0.000008]  verify_pkcs7_message_sig+0xec/0x1b0
[  +0.000012]  verify_pkcs7_signature+0x78/0xac
[  +0.000007]  mod_verify_sig+0x110/0x190
[  +0.000009]  module_sig_check+0x114/0x1e0
[  +0.000009]  load_module+0xa0/0x1ea4
[  +0.000008]  __do_sys_init_module+0x184/0x1cc
[  +0.000008]  __arm64_sys_init_module+0x78/0xb0
[  +0.000008]  invoke_syscall+0x74/0x260
[  +0.000009]  el0_svc_common.constprop.0+0x1a8/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000009]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000013] Freed by task 2422:
[  +0.000008]  kasan_save_stack+0x2c/0x5c
[  +0.000009]  kasan_set_track+0x2c/0x40
[  +0.000007]  kasan_set_free_info+0x28/0x50
[  +0.000009]  ____kasan_slab_free+0x128/0x1d4
[  +0.000008]  __kasan_slab_free+0x18/0x24
[  +0.000007]  slab_free_freelist_hook+0x108/0x230
[  +0.000010]  kfree+0x110/0x35c
[  +0.000008]  release_nodes+0xf0/0x16c
[  +0.000009]  devres_release_group+0x180/0x270
[  +0.000008]  take_down_aggregate_device+0xcc/0x160
[  +0.000010]  component_del+0x18c/0x360
[  +0.000009]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]
[  +0.000013]  platform_remove+0x64/0xb0
[  +0.000008]  device_remove+0xb8/0x154
[  +0.000009]  device_release_driver_internal+0x398/0x5b0
[  +0.000009]  driver_detach+0xac/0x1b0
[  +0.000009]  bus_remove_driver+0x158/0x29c
[  +0.000008]  driver_unregister+0x70/0xb0
[  +0.000009]  platform_driver_unregister+0x20/0x2c
[  +0.000007]  meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi]
[  +0.000012]  __do_sys_delete_module+0x288/0x400
[  +0.000009]  __arm64_sys_delete_module+0x5c/0x80
[  +0.000009]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000008]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000013] The buggy address belongs to the object at ffff00003da29000
               which belongs to the cache kmalloc-1k of size 1024
[  +0.000008] The buggy address is located 496 bytes inside of
               1024-byte region [ffff00003da29000, ffff00003da29400)

[  +0.000015] The buggy address belongs to the physical page:
[  +0.000009] page:fffffc0000f68a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3da28
[  +0.000012] head:fffffc0000f68a00 order:3 compound_mapcount:0 compound_pincount:0
[  +0.000009] flags: 0xffff00000010200(slab|head|node=0|zone=0|lastcpupid=0xffff)
[  +0.000019] raw: 0ffff00000010200 fffffc0000eb5c08 fffffc0000d96608 ffff000000002a80
[  +0.000008] raw: 0000000000000000 00000000000a000a 00000001ffffffff 0000000000000000
[  +0.000008] page dumped because: kasan: bad access detected

[  +0.000011] Memory state around the buggy address:
[  +0.000009]  ffff00003da29080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]  ffff00003da29100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007] >ffff00003da29180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]                                                              ^
[  +0.000008]  ffff00003da29200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000006]  ffff00003da29280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007] ==================================================================

Fix by keeping track of which encoders were initialised in the meson_drm
structure and manually removing their bridges at aggregate driver's unbind
time.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220920222842.1053234-1-adrian.larumbe@collabora.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/meson/meson_drv.c          |  4 ++++
 drivers/gpu/drm/meson/meson_drv.h          |  7 +++++++
 drivers/gpu/drm/meson/meson_encoder_cvbs.c | 13 +++++++++++++
 drivers/gpu/drm/meson/meson_encoder_cvbs.h |  1 +
 drivers/gpu/drm/meson/meson_encoder_hdmi.c | 13 +++++++++++++
 drivers/gpu/drm/meson/meson_encoder_hdmi.h |  1 +
 6 files changed, 39 insertions(+)

diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index 8444d90165fb..86b90d0f5780 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -390,6 +390,10 @@ static void meson_drv_unbind(struct device *dev)
 	drm_atomic_helper_shutdown(drm);
 	free_irq(priv->vsync_irq, drm);
 	drm_dev_put(drm);
+
+	meson_encoder_hdmi_remove(priv);
+	meson_encoder_cvbs_remove(priv);
+
 	component_unbind_all(dev, drm);
 
 	if (priv->afbcd.ops)
diff --git a/drivers/gpu/drm/meson/meson_drv.h b/drivers/gpu/drm/meson/meson_drv.h
index 177dac3ca3be..c62ee358456f 100644
--- a/drivers/gpu/drm/meson/meson_drv.h
+++ b/drivers/gpu/drm/meson/meson_drv.h
@@ -25,6 +25,12 @@ enum vpu_compatible {
 	VPU_COMPATIBLE_G12A = 3,
 };
 
+enum {
+	MESON_ENC_CVBS = 0,
+	MESON_ENC_HDMI,
+	MESON_ENC_LAST,
+};
+
 struct meson_drm_match_data {
 	enum vpu_compatible compat;
 	struct meson_afbcd_ops *afbcd_ops;
@@ -51,6 +57,7 @@ struct meson_drm {
 	struct drm_crtc *crtc;
 	struct drm_plane *primary_plane;
 	struct drm_plane *overlay_plane;
+	void *encoders[MESON_ENC_LAST];
 
 	const struct meson_drm_soc_limits *limits;
 
diff --git a/drivers/gpu/drm/meson/meson_encoder_cvbs.c b/drivers/gpu/drm/meson/meson_encoder_cvbs.c
index 8110a6e39320..5675bc2a92cf 100644
--- a/drivers/gpu/drm/meson/meson_encoder_cvbs.c
+++ b/drivers/gpu/drm/meson/meson_encoder_cvbs.c
@@ -281,5 +281,18 @@ int meson_encoder_cvbs_init(struct meson_drm *priv)
 	}
 	drm_connector_attach_encoder(connector, &meson_encoder_cvbs->encoder);
 
+	priv->encoders[MESON_ENC_CVBS] = meson_encoder_cvbs;
+
 	return 0;
 }
+
+void meson_encoder_cvbs_remove(struct meson_drm *priv)
+{
+	struct meson_encoder_cvbs *meson_encoder_cvbs;
+
+	if (priv->encoders[MESON_ENC_CVBS]) {
+		meson_encoder_cvbs = priv->encoders[MESON_ENC_CVBS];
+		drm_bridge_remove(&meson_encoder_cvbs->bridge);
+		drm_bridge_remove(meson_encoder_cvbs->next_bridge);
+	}
+}
diff --git a/drivers/gpu/drm/meson/meson_encoder_cvbs.h b/drivers/gpu/drm/meson/meson_encoder_cvbs.h
index 61d9d183ce7f..09710fec3c66 100644
--- a/drivers/gpu/drm/meson/meson_encoder_cvbs.h
+++ b/drivers/gpu/drm/meson/meson_encoder_cvbs.h
@@ -25,5 +25,6 @@ struct meson_cvbs_mode {
 extern struct meson_cvbs_mode meson_cvbs_modes[MESON_CVBS_MODES_COUNT];
 
 int meson_encoder_cvbs_init(struct meson_drm *priv);
+void meson_encoder_cvbs_remove(struct meson_drm *priv);
 
 #endif /* __MESON_VENC_CVBS_H */
diff --git a/drivers/gpu/drm/meson/meson_encoder_hdmi.c b/drivers/gpu/drm/meson/meson_encoder_hdmi.c
index 2f616c55c271..53231bfdf7e2 100644
--- a/drivers/gpu/drm/meson/meson_encoder_hdmi.c
+++ b/drivers/gpu/drm/meson/meson_encoder_hdmi.c
@@ -452,6 +452,8 @@ int meson_encoder_hdmi_init(struct meson_drm *priv)
 		meson_encoder_hdmi->cec_notifier = notifier;
 	}
 
+	priv->encoders[MESON_ENC_HDMI] = meson_encoder_hdmi;
+
 	dev_dbg(priv->dev, "HDMI encoder initialized\n");
 
 	return 0;
@@ -460,3 +462,14 @@ int meson_encoder_hdmi_init(struct meson_drm *priv)
 	of_node_put(remote);
 	return ret;
 }
+
+void meson_encoder_hdmi_remove(struct meson_drm *priv)
+{
+	struct meson_encoder_hdmi *meson_encoder_hdmi;
+
+	if (priv->encoders[MESON_ENC_HDMI]) {
+		meson_encoder_hdmi = priv->encoders[MESON_ENC_HDMI];
+		drm_bridge_remove(&meson_encoder_hdmi->bridge);
+		drm_bridge_remove(meson_encoder_hdmi->next_bridge);
+	}
+}
diff --git a/drivers/gpu/drm/meson/meson_encoder_hdmi.h b/drivers/gpu/drm/meson/meson_encoder_hdmi.h
index ed19494f0956..a6cd38eb5f71 100644
--- a/drivers/gpu/drm/meson/meson_encoder_hdmi.h
+++ b/drivers/gpu/drm/meson/meson_encoder_hdmi.h
@@ -8,5 +8,6 @@
 #define __MESON_ENCODER_HDMI_H
 
 int meson_encoder_hdmi_init(struct meson_drm *priv);
+void meson_encoder_hdmi_remove(struct meson_drm *priv);
 
 #endif /* __MESON_ENCODER_HDMI_H */
-- 
2.35.1

[PATCH AUTOSEL 6.0 37/44] drm/meson: remove drm bridges at aggregate driver unbind time

[Sasha Levin]

From: Adrián Larumbe <adrian.larumbe@collabora.com>

[ Upstream commit 09847723c12fc2753749cec3939a02ee92dac468 ]

drm bridges added by meson_encoder_hdmi_init and meson_encoder_cvbs_init
were not manually removed at module unload time, which caused dangling
references to freed memory to remain linked in the global bridge_list.

When loading the driver modules back in, the same functions would again
call drm_bridge_add, and when traversing the global bridge_list, would
end up peeking into freed memory.

Once again KASAN revealed the problem:

[  +0.000095] =============================================================
[  +0.000008] BUG: KASAN: use-after-free in __list_add_valid+0x9c/0x120
[  +0.000018] Read of size 8 at addr ffff00003da291f0 by task modprobe/2483

[  +0.000018] CPU: 3 PID: 2483 Comm: modprobe Tainted: G         C O      5.19.0-rc6-lrmbkasan+ #1
[  +0.000011] Hardware name: Hardkernel ODROID-N2Plus (DT)
[  +0.000008] Call trace:
[  +0.000006]  dump_backtrace+0x1ec/0x280
[  +0.000012]  show_stack+0x24/0x80
[  +0.000008]  dump_stack_lvl+0x98/0xd4
[  +0.000011]  print_address_description.constprop.0+0x80/0x520
[  +0.000011]  print_report+0x128/0x260
[  +0.000008]  kasan_report+0xb8/0xfc
[  +0.000008]  __asan_report_load8_noabort+0x3c/0x50
[  +0.000009]  __list_add_valid+0x9c/0x120
[  +0.000009]  drm_bridge_add+0x6c/0x104 [drm]
[  +0.000165]  dw_hdmi_probe+0x1900/0x2360 [dw_hdmi]
[  +0.000022]  meson_dw_hdmi_bind+0x520/0x814 [meson_dw_hdmi]
[  +0.000014]  component_bind+0x174/0x520
[  +0.000012]  component_bind_all+0x1a8/0x38c
[  +0.000010]  meson_drv_bind_master+0x5e8/0xb74 [meson_drm]
[  +0.000032]  meson_drv_bind+0x20/0x2c [meson_drm]
[  +0.000027]  try_to_bring_up_aggregate_device+0x19c/0x390
[  +0.000010]  component_master_add_with_match+0x1c8/0x284
[  +0.000009]  meson_drv_probe+0x274/0x280 [meson_drm]
[  +0.000026]  platform_probe+0xd0/0x220
[  +0.000009]  really_probe+0x3ac/0xa80
[  +0.000009]  __driver_probe_device+0x1f8/0x400
[  +0.000009]  driver_probe_device+0x68/0x1b0
[  +0.000009]  __driver_attach+0x20c/0x480
[  +0.000008]  bus_for_each_dev+0x114/0x1b0
[  +0.000009]  driver_attach+0x48/0x64
[  +0.000008]  bus_add_driver+0x390/0x564
[  +0.000009]  driver_register+0x1a8/0x3e4
[  +0.000009]  __platform_driver_register+0x6c/0x94
[  +0.000008]  meson_drm_platform_driver_init+0x3c/0x1000 [meson_drm]
[  +0.000027]  do_one_initcall+0xc4/0x2b0
[  +0.000011]  do_init_module+0x154/0x570
[  +0.000011]  load_module+0x1a78/0x1ea4
[  +0.000008]  __do_sys_init_module+0x184/0x1cc
[  +0.000009]  __arm64_sys_init_module+0x78/0xb0
[  +0.000009]  invoke_syscall+0x74/0x260
[  +0.000009]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000012]  el0t_64_sync_handler+0x11c/0x150
[  +0.000008]  el0t_64_sync+0x18c/0x190

[  +0.000016] Allocated by task 879:
[  +0.000008]  kasan_save_stack+0x2c/0x5c
[  +0.000011]  __kasan_kmalloc+0x90/0xd0
[  +0.000007]  __kmalloc+0x278/0x4a0
[  +0.000011]  mpi_resize+0x13c/0x1d0
[  +0.000011]  mpi_powm+0xd24/0x1570
[  +0.000009]  rsa_enc+0x1a4/0x30c
[  +0.000009]  pkcs1pad_verify+0x3f0/0x580
[  +0.000009]  public_key_verify_signature+0x7a8/0xba4
[  +0.000010]  public_key_verify_signature_2+0x40/0x60
[  +0.000008]  verify_signature+0xb4/0x114
[  +0.000008]  pkcs7_validate_trust_one.constprop.0+0x3b8/0x574
[  +0.000009]  pkcs7_validate_trust+0xb8/0x15c
[  +0.000008]  verify_pkcs7_message_sig+0xec/0x1b0
[  +0.000012]  verify_pkcs7_signature+0x78/0xac
[  +0.000007]  mod_verify_sig+0x110/0x190
[  +0.000009]  module_sig_check+0x114/0x1e0
[  +0.000009]  load_module+0xa0/0x1ea4
[  +0.000008]  __do_sys_init_module+0x184/0x1cc
[  +0.000008]  __arm64_sys_init_module+0x78/0xb0
[  +0.000008]  invoke_syscall+0x74/0x260
[  +0.000009]  el0_svc_common.constprop.0+0x1a8/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000009]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000013] Freed by task 2422:
[  +0.000008]  kasan_save_stack+0x2c/0x5c
[  +0.000009]  kasan_set_track+0x2c/0x40
[  +0.000007]  kasan_set_free_info+0x28/0x50
[  +0.000009]  ____kasan_slab_free+0x128/0x1d4
[  +0.000008]  __kasan_slab_free+0x18/0x24
[  +0.000007]  slab_free_freelist_hook+0x108/0x230
[  +0.000010]  kfree+0x110/0x35c
[  +0.000008]  release_nodes+0xf0/0x16c
[  +0.000009]  devres_release_group+0x180/0x270
[  +0.000008]  take_down_aggregate_device+0xcc/0x160
[  +0.000010]  component_del+0x18c/0x360
[  +0.000009]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]
[  +0.000013]  platform_remove+0x64/0xb0
[  +0.000008]  device_remove+0xb8/0x154
[  +0.000009]  device_release_driver_internal+0x398/0x5b0
[  +0.000009]  driver_detach+0xac/0x1b0
[  +0.000009]  bus_remove_driver+0x158/0x29c
[  +0.000008]  driver_unregister+0x70/0xb0
[  +0.000009]  platform_driver_unregister+0x20/0x2c
[  +0.000007]  meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi]
[  +0.000012]  __do_sys_delete_module+0x288/0x400
[  +0.000009]  __arm64_sys_delete_module+0x5c/0x80
[  +0.000009]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000008]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000013] The buggy address belongs to the object at ffff00003da29000
               which belongs to the cache kmalloc-1k of size 1024
[  +0.000008] The buggy address is located 496 bytes inside of
               1024-byte region [ffff00003da29000, ffff00003da29400)

[  +0.000015] The buggy address belongs to the physical page:
[  +0.000009] page:fffffc0000f68a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3da28
[  +0.000012] head:fffffc0000f68a00 order:3 compound_mapcount:0 compound_pincount:0
[  +0.000009] flags: 0xffff00000010200(slab|head|node=0|zone=0|lastcpupid=0xffff)
[  +0.000019] raw: 0ffff00000010200 fffffc0000eb5c08 fffffc0000d96608 ffff000000002a80
[  +0.000008] raw: 0000000000000000 00000000000a000a 00000001ffffffff 0000000000000000
[  +0.000008] page dumped because: kasan: bad access detected

[  +0.000011] Memory state around the buggy address:
[  +0.000009]  ffff00003da29080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]  ffff00003da29100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007] >ffff00003da29180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]                                                              ^
[  +0.000008]  ffff00003da29200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000006]  ffff00003da29280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007] ==================================================================

Fix by keeping track of which encoders were initialised in the meson_drm
structure and manually removing their bridges at aggregate driver's unbind
time.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220920222842.1053234-1-adrian.larumbe@collabora.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/meson/meson_drv.c          |  4 ++++
 drivers/gpu/drm/meson/meson_drv.h          |  7 +++++++
 drivers/gpu/drm/meson/meson_encoder_cvbs.c | 13 +++++++++++++
 drivers/gpu/drm/meson/meson_encoder_cvbs.h |  1 +
 drivers/gpu/drm/meson/meson_encoder_hdmi.c | 13 +++++++++++++
 drivers/gpu/drm/meson/meson_encoder_hdmi.h |  1 +
 6 files changed, 39 insertions(+)

diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index 8444d90165fb..86b90d0f5780 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -390,6 +390,10 @@ static void meson_drv_unbind(struct device *dev)
 	drm_atomic_helper_shutdown(drm);
 	free_irq(priv->vsync_irq, drm);
 	drm_dev_put(drm);
+
+	meson_encoder_hdmi_remove(priv);
+	meson_encoder_cvbs_remove(priv);
+
 	component_unbind_all(dev, drm);
 
 	if (priv->afbcd.ops)
diff --git a/drivers/gpu/drm/meson/meson_drv.h b/drivers/gpu/drm/meson/meson_drv.h
index 177dac3ca3be..c62ee358456f 100644
--- a/drivers/gpu/drm/meson/meson_drv.h
+++ b/drivers/gpu/drm/meson/meson_drv.h
@@ -25,6 +25,12 @@ enum vpu_compatible {
 	VPU_COMPATIBLE_G12A = 3,
 };
 
+enum {
+	MESON_ENC_CVBS = 0,
+	MESON_ENC_HDMI,
+	MESON_ENC_LAST,
+};
+
 struct meson_drm_match_data {
 	enum vpu_compatible compat;
 	struct meson_afbcd_ops *afbcd_ops;
@@ -51,6 +57,7 @@ struct meson_drm {
 	struct drm_crtc *crtc;
 	struct drm_plane *primary_plane;
 	struct drm_plane *overlay_plane;
+	void *encoders[MESON_ENC_LAST];
 
 	const struct meson_drm_soc_limits *limits;
 
diff --git a/drivers/gpu/drm/meson/meson_encoder_cvbs.c b/drivers/gpu/drm/meson/meson_encoder_cvbs.c
index 8110a6e39320..5675bc2a92cf 100644
--- a/drivers/gpu/drm/meson/meson_encoder_cvbs.c
+++ b/drivers/gpu/drm/meson/meson_encoder_cvbs.c
@@ -281,5 +281,18 @@ int meson_encoder_cvbs_init(struct meson_drm *priv)
 	}
 	drm_connector_attach_encoder(connector, &meson_encoder_cvbs->encoder);
 
+	priv->encoders[MESON_ENC_CVBS] = meson_encoder_cvbs;
+
 	return 0;
 }
+
+void meson_encoder_cvbs_remove(struct meson_drm *priv)
+{
+	struct meson_encoder_cvbs *meson_encoder_cvbs;
+
+	if (priv->encoders[MESON_ENC_CVBS]) {
+		meson_encoder_cvbs = priv->encoders[MESON_ENC_CVBS];
+		drm_bridge_remove(&meson_encoder_cvbs->bridge);
+		drm_bridge_remove(meson_encoder_cvbs->next_bridge);
+	}
+}
diff --git a/drivers/gpu/drm/meson/meson_encoder_cvbs.h b/drivers/gpu/drm/meson/meson_encoder_cvbs.h
index 61d9d183ce7f..09710fec3c66 100644
--- a/drivers/gpu/drm/meson/meson_encoder_cvbs.h
+++ b/drivers/gpu/drm/meson/meson_encoder_cvbs.h
@@ -25,5 +25,6 @@ struct meson_cvbs_mode {
 extern struct meson_cvbs_mode meson_cvbs_modes[MESON_CVBS_MODES_COUNT];
 
 int meson_encoder_cvbs_init(struct meson_drm *priv);
+void meson_encoder_cvbs_remove(struct meson_drm *priv);
 
 #endif /* __MESON_VENC_CVBS_H */
diff --git a/drivers/gpu/drm/meson/meson_encoder_hdmi.c b/drivers/gpu/drm/meson/meson_encoder_hdmi.c
index 2f616c55c271..53231bfdf7e2 100644
--- a/drivers/gpu/drm/meson/meson_encoder_hdmi.c
+++ b/drivers/gpu/drm/meson/meson_encoder_hdmi.c
@@ -452,6 +452,8 @@ int meson_encoder_hdmi_init(struct meson_drm *priv)
 		meson_encoder_hdmi->cec_notifier = notifier;
 	}
 
+	priv->encoders[MESON_ENC_HDMI] = meson_encoder_hdmi;
+
 	dev_dbg(priv->dev, "HDMI encoder initialized\n");
 
 	return 0;
@@ -460,3 +462,14 @@ int meson_encoder_hdmi_init(struct meson_drm *priv)
 	of_node_put(remote);
 	return ret;
 }
+
+void meson_encoder_hdmi_remove(struct meson_drm *priv)
+{
+	struct meson_encoder_hdmi *meson_encoder_hdmi;
+
+	if (priv->encoders[MESON_ENC_HDMI]) {
+		meson_encoder_hdmi = priv->encoders[MESON_ENC_HDMI];
+		drm_bridge_remove(&meson_encoder_hdmi->bridge);
+		drm_bridge_remove(meson_encoder_hdmi->next_bridge);
+	}
+}
diff --git a/drivers/gpu/drm/meson/meson_encoder_hdmi.h b/drivers/gpu/drm/meson/meson_encoder_hdmi.h
index ed19494f0956..a6cd38eb5f71 100644
--- a/drivers/gpu/drm/meson/meson_encoder_hdmi.h
+++ b/drivers/gpu/drm/meson/meson_encoder_hdmi.h
@@ -8,5 +8,6 @@
 #define __MESON_ENCODER_HDMI_H
 
 int meson_encoder_hdmi_init(struct meson_drm *priv);
+void meson_encoder_hdmi_remove(struct meson_drm *priv);
 
 #endif /* __MESON_ENCODER_HDMI_H */
-- 
2.35.1


_______________________________________________
linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic

[PATCH AUTOSEL 6.0 37/44] drm/meson: remove drm bridges at aggregate driver unbind time

[Sasha Levin]

From: Adrián Larumbe <adrian.larumbe@collabora.com>

[ Upstream commit 09847723c12fc2753749cec3939a02ee92dac468 ]

drm bridges added by meson_encoder_hdmi_init and meson_encoder_cvbs_init
were not manually removed at module unload time, which caused dangling
references to freed memory to remain linked in the global bridge_list.

When loading the driver modules back in, the same functions would again
call drm_bridge_add, and when traversing the global bridge_list, would
end up peeking into freed memory.

Once again KASAN revealed the problem:

[  +0.000095] =============================================================
[  +0.000008] BUG: KASAN: use-after-free in __list_add_valid+0x9c/0x120
[  +0.000018] Read of size 8 at addr ffff00003da291f0 by task modprobe/2483

[  +0.000018] CPU: 3 PID: 2483 Comm: modprobe Tainted: G         C O      5.19.0-rc6-lrmbkasan+ #1
[  +0.000011] Hardware name: Hardkernel ODROID-N2Plus (DT)
[  +0.000008] Call trace:
[  +0.000006]  dump_backtrace+0x1ec/0x280
[  +0.000012]  show_stack+0x24/0x80
[  +0.000008]  dump_stack_lvl+0x98/0xd4
[  +0.000011]  print_address_description.constprop.0+0x80/0x520
[  +0.000011]  print_report+0x128/0x260
[  +0.000008]  kasan_report+0xb8/0xfc
[  +0.000008]  __asan_report_load8_noabort+0x3c/0x50
[  +0.000009]  __list_add_valid+0x9c/0x120
[  +0.000009]  drm_bridge_add+0x6c/0x104 [drm]
[  +0.000165]  dw_hdmi_probe+0x1900/0x2360 [dw_hdmi]
[  +0.000022]  meson_dw_hdmi_bind+0x520/0x814 [meson_dw_hdmi]
[  +0.000014]  component_bind+0x174/0x520
[  +0.000012]  component_bind_all+0x1a8/0x38c
[  +0.000010]  meson_drv_bind_master+0x5e8/0xb74 [meson_drm]
[  +0.000032]  meson_drv_bind+0x20/0x2c [meson_drm]
[  +0.000027]  try_to_bring_up_aggregate_device+0x19c/0x390
[  +0.000010]  component_master_add_with_match+0x1c8/0x284
[  +0.000009]  meson_drv_probe+0x274/0x280 [meson_drm]
[  +0.000026]  platform_probe+0xd0/0x220
[  +0.000009]  really_probe+0x3ac/0xa80
[  +0.000009]  __driver_probe_device+0x1f8/0x400
[  +0.000009]  driver_probe_device+0x68/0x1b0
[  +0.000009]  __driver_attach+0x20c/0x480
[  +0.000008]  bus_for_each_dev+0x114/0x1b0
[  +0.000009]  driver_attach+0x48/0x64
[  +0.000008]  bus_add_driver+0x390/0x564
[  +0.000009]  driver_register+0x1a8/0x3e4
[  +0.000009]  __platform_driver_register+0x6c/0x94
[  +0.000008]  meson_drm_platform_driver_init+0x3c/0x1000 [meson_drm]
[  +0.000027]  do_one_initcall+0xc4/0x2b0
[  +0.000011]  do_init_module+0x154/0x570
[  +0.000011]  load_module+0x1a78/0x1ea4
[  +0.000008]  __do_sys_init_module+0x184/0x1cc
[  +0.000009]  __arm64_sys_init_module+0x78/0xb0
[  +0.000009]  invoke_syscall+0x74/0x260
[  +0.000009]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000012]  el0t_64_sync_handler+0x11c/0x150
[  +0.000008]  el0t_64_sync+0x18c/0x190

[  +0.000016] Allocated by task 879:
[  +0.000008]  kasan_save_stack+0x2c/0x5c
[  +0.000011]  __kasan_kmalloc+0x90/0xd0
[  +0.000007]  __kmalloc+0x278/0x4a0
[  +0.000011]  mpi_resize+0x13c/0x1d0
[  +0.000011]  mpi_powm+0xd24/0x1570
[  +0.000009]  rsa_enc+0x1a4/0x30c
[  +0.000009]  pkcs1pad_verify+0x3f0/0x580
[  +0.000009]  public_key_verify_signature+0x7a8/0xba4
[  +0.000010]  public_key_verify_signature_2+0x40/0x60
[  +0.000008]  verify_signature+0xb4/0x114
[  +0.000008]  pkcs7_validate_trust_one.constprop.0+0x3b8/0x574
[  +0.000009]  pkcs7_validate_trust+0xb8/0x15c
[  +0.000008]  verify_pkcs7_message_sig+0xec/0x1b0
[  +0.000012]  verify_pkcs7_signature+0x78/0xac
[  +0.000007]  mod_verify_sig+0x110/0x190
[  +0.000009]  module_sig_check+0x114/0x1e0
[  +0.000009]  load_module+0xa0/0x1ea4
[  +0.000008]  __do_sys_init_module+0x184/0x1cc
[  +0.000008]  __arm64_sys_init_module+0x78/0xb0
[  +0.000008]  invoke_syscall+0x74/0x260
[  +0.000009]  el0_svc_common.constprop.0+0x1a8/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000009]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000013] Freed by task 2422:
[  +0.000008]  kasan_save_stack+0x2c/0x5c
[  +0.000009]  kasan_set_track+0x2c/0x40
[  +0.000007]  kasan_set_free_info+0x28/0x50
[  +0.000009]  ____kasan_slab_free+0x128/0x1d4
[  +0.000008]  __kasan_slab_free+0x18/0x24
[  +0.000007]  slab_free_freelist_hook+0x108/0x230
[  +0.000010]  kfree+0x110/0x35c
[  +0.000008]  release_nodes+0xf0/0x16c
[  +0.000009]  devres_release_group+0x180/0x270
[  +0.000008]  take_down_aggregate_device+0xcc/0x160
[  +0.000010]  component_del+0x18c/0x360
[  +0.000009]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]
[  +0.000013]  platform_remove+0x64/0xb0
[  +0.000008]  device_remove+0xb8/0x154
[  +0.000009]  device_release_driver_internal+0x398/0x5b0
[  +0.000009]  driver_detach+0xac/0x1b0
[  +0.000009]  bus_remove_driver+0x158/0x29c
[  +0.000008]  driver_unregister+0x70/0xb0
[  +0.000009]  platform_driver_unregister+0x20/0x2c
[  +0.000007]  meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi]
[  +0.000012]  __do_sys_delete_module+0x288/0x400
[  +0.000009]  __arm64_sys_delete_module+0x5c/0x80
[  +0.000009]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000008]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000013] The buggy address belongs to the object at ffff00003da29000
               which belongs to the cache kmalloc-1k of size 1024
[  +0.000008] The buggy address is located 496 bytes inside of
               1024-byte region [ffff00003da29000, ffff00003da29400)

[  +0.000015] The buggy address belongs to the physical page:
[  +0.000009] page:fffffc0000f68a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3da28
[  +0.000012] head:fffffc0000f68a00 order:3 compound_mapcount:0 compound_pincount:0
[  +0.000009] flags: 0xffff00000010200(slab|head|node=0|zone=0|lastcpupid=0xffff)
[  +0.000019] raw: 0ffff00000010200 fffffc0000eb5c08 fffffc0000d96608 ffff000000002a80
[  +0.000008] raw: 0000000000000000 00000000000a000a 00000001ffffffff 0000000000000000
[  +0.000008] page dumped because: kasan: bad access detected

[  +0.000011] Memory state around the buggy address:
[  +0.000009]  ffff00003da29080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]  ffff00003da29100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007] >ffff00003da29180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]                                                              ^
[  +0.000008]  ffff00003da29200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000006]  ffff00003da29280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007] ==================================================================

Fix by keeping track of which encoders were initialised in the meson_drm
structure and manually removing their bridges at aggregate driver's unbind
time.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220920222842.1053234-1-adrian.larumbe@collabora.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/meson/meson_drv.c          |  4 ++++
 drivers/gpu/drm/meson/meson_drv.h          |  7 +++++++
 drivers/gpu/drm/meson/meson_encoder_cvbs.c | 13 +++++++++++++
 drivers/gpu/drm/meson/meson_encoder_cvbs.h |  1 +
 drivers/gpu/drm/meson/meson_encoder_hdmi.c | 13 +++++++++++++
 drivers/gpu/drm/meson/meson_encoder_hdmi.h |  1 +
 6 files changed, 39 insertions(+)

diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index 8444d90165fb..86b90d0f5780 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -390,6 +390,10 @@ static void meson_drv_unbind(struct device *dev)
 	drm_atomic_helper_shutdown(drm);
 	free_irq(priv->vsync_irq, drm);
 	drm_dev_put(drm);
+
+	meson_encoder_hdmi_remove(priv);
+	meson_encoder_cvbs_remove(priv);
+
 	component_unbind_all(dev, drm);
 
 	if (priv->afbcd.ops)
diff --git a/drivers/gpu/drm/meson/meson_drv.h b/drivers/gpu/drm/meson/meson_drv.h
index 177dac3ca3be..c62ee358456f 100644
--- a/drivers/gpu/drm/meson/meson_drv.h
+++ b/drivers/gpu/drm/meson/meson_drv.h
@@ -25,6 +25,12 @@ enum vpu_compatible {
 	VPU_COMPATIBLE_G12A = 3,
 };
 
+enum {
+	MESON_ENC_CVBS = 0,
+	MESON_ENC_HDMI,
+	MESON_ENC_LAST,
+};
+
 struct meson_drm_match_data {
 	enum vpu_compatible compat;
 	struct meson_afbcd_ops *afbcd_ops;
@@ -51,6 +57,7 @@ struct meson_drm {
 	struct drm_crtc *crtc;
 	struct drm_plane *primary_plane;
 	struct drm_plane *overlay_plane;
+	void *encoders[MESON_ENC_LAST];
 
 	const struct meson_drm_soc_limits *limits;
 
diff --git a/drivers/gpu/drm/meson/meson_encoder_cvbs.c b/drivers/gpu/drm/meson/meson_encoder_cvbs.c
index 8110a6e39320..5675bc2a92cf 100644
--- a/drivers/gpu/drm/meson/meson_encoder_cvbs.c
+++ b/drivers/gpu/drm/meson/meson_encoder_cvbs.c
@@ -281,5 +281,18 @@ int meson_encoder_cvbs_init(struct meson_drm *priv)
 	}
 	drm_connector_attach_encoder(connector, &meson_encoder_cvbs->encoder);
 
+	priv->encoders[MESON_ENC_CVBS] = meson_encoder_cvbs;
+
 	return 0;
 }
+
+void meson_encoder_cvbs_remove(struct meson_drm *priv)
+{
+	struct meson_encoder_cvbs *meson_encoder_cvbs;
+
+	if (priv->encoders[MESON_ENC_CVBS]) {
+		meson_encoder_cvbs = priv->encoders[MESON_ENC_CVBS];
+		drm_bridge_remove(&meson_encoder_cvbs->bridge);
+		drm_bridge_remove(meson_encoder_cvbs->next_bridge);
+	}
+}
diff --git a/drivers/gpu/drm/meson/meson_encoder_cvbs.h b/drivers/gpu/drm/meson/meson_encoder_cvbs.h
index 61d9d183ce7f..09710fec3c66 100644
--- a/drivers/gpu/drm/meson/meson_encoder_cvbs.h
+++ b/drivers/gpu/drm/meson/meson_encoder_cvbs.h
@@ -25,5 +25,6 @@ struct meson_cvbs_mode {
 extern struct meson_cvbs_mode meson_cvbs_modes[MESON_CVBS_MODES_COUNT];
 
 int meson_encoder_cvbs_init(struct meson_drm *priv);
+void meson_encoder_cvbs_remove(struct meson_drm *priv);
 
 #endif /* __MESON_VENC_CVBS_H */
diff --git a/drivers/gpu/drm/meson/meson_encoder_hdmi.c b/drivers/gpu/drm/meson/meson_encoder_hdmi.c
index 2f616c55c271..53231bfdf7e2 100644
--- a/drivers/gpu/drm/meson/meson_encoder_hdmi.c
+++ b/drivers/gpu/drm/meson/meson_encoder_hdmi.c
@@ -452,6 +452,8 @@ int meson_encoder_hdmi_init(struct meson_drm *priv)
 		meson_encoder_hdmi->cec_notifier = notifier;
 	}
 
+	priv->encoders[MESON_ENC_HDMI] = meson_encoder_hdmi;
+
 	dev_dbg(priv->dev, "HDMI encoder initialized\n");
 
 	return 0;
@@ -460,3 +462,14 @@ int meson_encoder_hdmi_init(struct meson_drm *priv)
 	of_node_put(remote);
 	return ret;
 }
+
+void meson_encoder_hdmi_remove(struct meson_drm *priv)
+{
+	struct meson_encoder_hdmi *meson_encoder_hdmi;
+
+	if (priv->encoders[MESON_ENC_HDMI]) {
+		meson_encoder_hdmi = priv->encoders[MESON_ENC_HDMI];
+		drm_bridge_remove(&meson_encoder_hdmi->bridge);
+		drm_bridge_remove(meson_encoder_hdmi->next_bridge);
+	}
+}
diff --git a/drivers/gpu/drm/meson/meson_encoder_hdmi.h b/drivers/gpu/drm/meson/meson_encoder_hdmi.h
index ed19494f0956..a6cd38eb5f71 100644
--- a/drivers/gpu/drm/meson/meson_encoder_hdmi.h
+++ b/drivers/gpu/drm/meson/meson_encoder_hdmi.h
@@ -8,5 +8,6 @@
 #define __MESON_ENCODER_HDMI_H
 
 int meson_encoder_hdmi_init(struct meson_drm *priv);
+void meson_encoder_hdmi_remove(struct meson_drm *priv);
 
 #endif /* __MESON_ENCODER_HDMI_H */
-- 
2.35.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH AUTOSEL 6.0 37/44] drm/meson: remove drm bridges at aggregate driver unbind time

[Sasha Levin]

From: Adrián Larumbe <adrian.larumbe@collabora.com>

[ Upstream commit 09847723c12fc2753749cec3939a02ee92dac468 ]

drm bridges added by meson_encoder_hdmi_init and meson_encoder_cvbs_init
were not manually removed at module unload time, which caused dangling
references to freed memory to remain linked in the global bridge_list.

When loading the driver modules back in, the same functions would again
call drm_bridge_add, and when traversing the global bridge_list, would
end up peeking into freed memory.

Once again KASAN revealed the problem:

[  +0.000095] =============================================================
[  +0.000008] BUG: KASAN: use-after-free in __list_add_valid+0x9c/0x120
[  +0.000018] Read of size 8 at addr ffff00003da291f0 by task modprobe/2483

[  +0.000018] CPU: 3 PID: 2483 Comm: modprobe Tainted: G         C O      5.19.0-rc6-lrmbkasan+ #1
[  +0.000011] Hardware name: Hardkernel ODROID-N2Plus (DT)
[  +0.000008] Call trace:
[  +0.000006]  dump_backtrace+0x1ec/0x280
[  +0.000012]  show_stack+0x24/0x80
[  +0.000008]  dump_stack_lvl+0x98/0xd4
[  +0.000011]  print_address_description.constprop.0+0x80/0x520
[  +0.000011]  print_report+0x128/0x260
[  +0.000008]  kasan_report+0xb8/0xfc
[  +0.000008]  __asan_report_load8_noabort+0x3c/0x50
[  +0.000009]  __list_add_valid+0x9c/0x120
[  +0.000009]  drm_bridge_add+0x6c/0x104 [drm]
[  +0.000165]  dw_hdmi_probe+0x1900/0x2360 [dw_hdmi]
[  +0.000022]  meson_dw_hdmi_bind+0x520/0x814 [meson_dw_hdmi]
[  +0.000014]  component_bind+0x174/0x520
[  +0.000012]  component_bind_all+0x1a8/0x38c
[  +0.000010]  meson_drv_bind_master+0x5e8/0xb74 [meson_drm]
[  +0.000032]  meson_drv_bind+0x20/0x2c [meson_drm]
[  +0.000027]  try_to_bring_up_aggregate_device+0x19c/0x390
[  +0.000010]  component_master_add_with_match+0x1c8/0x284
[  +0.000009]  meson_drv_probe+0x274/0x280 [meson_drm]
[  +0.000026]  platform_probe+0xd0/0x220
[  +0.000009]  really_probe+0x3ac/0xa80
[  +0.000009]  __driver_probe_device+0x1f8/0x400
[  +0.000009]  driver_probe_device+0x68/0x1b0
[  +0.000009]  __driver_attach+0x20c/0x480
[  +0.000008]  bus_for_each_dev+0x114/0x1b0
[  +0.000009]  driver_attach+0x48/0x64
[  +0.000008]  bus_add_driver+0x390/0x564
[  +0.000009]  driver_register+0x1a8/0x3e4
[  +0.000009]  __platform_driver_register+0x6c/0x94
[  +0.000008]  meson_drm_platform_driver_init+0x3c/0x1000 [meson_drm]
[  +0.000027]  do_one_initcall+0xc4/0x2b0
[  +0.000011]  do_init_module+0x154/0x570
[  +0.000011]  load_module+0x1a78/0x1ea4
[  +0.000008]  __do_sys_init_module+0x184/0x1cc
[  +0.000009]  __arm64_sys_init_module+0x78/0xb0
[  +0.000009]  invoke_syscall+0x74/0x260
[  +0.000009]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000012]  el0t_64_sync_handler+0x11c/0x150
[  +0.000008]  el0t_64_sync+0x18c/0x190

[  +0.000016] Allocated by task 879:
[  +0.000008]  kasan_save_stack+0x2c/0x5c
[  +0.000011]  __kasan_kmalloc+0x90/0xd0
[  +0.000007]  __kmalloc+0x278/0x4a0
[  +0.000011]  mpi_resize+0x13c/0x1d0
[  +0.000011]  mpi_powm+0xd24/0x1570
[  +0.000009]  rsa_enc+0x1a4/0x30c
[  +0.000009]  pkcs1pad_verify+0x3f0/0x580
[  +0.000009]  public_key_verify_signature+0x7a8/0xba4
[  +0.000010]  public_key_verify_signature_2+0x40/0x60
[  +0.000008]  verify_signature+0xb4/0x114
[  +0.000008]  pkcs7_validate_trust_one.constprop.0+0x3b8/0x574
[  +0.000009]  pkcs7_validate_trust+0xb8/0x15c
[  +0.000008]  verify_pkcs7_message_sig+0xec/0x1b0
[  +0.000012]  verify_pkcs7_signature+0x78/0xac
[  +0.000007]  mod_verify_sig+0x110/0x190
[  +0.000009]  module_sig_check+0x114/0x1e0
[  +0.000009]  load_module+0xa0/0x1ea4
[  +0.000008]  __do_sys_init_module+0x184/0x1cc
[  +0.000008]  __arm64_sys_init_module+0x78/0xb0
[  +0.000008]  invoke_syscall+0x74/0x260
[  +0.000009]  el0_svc_common.constprop.0+0x1a8/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000009]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000013] Freed by task 2422:
[  +0.000008]  kasan_save_stack+0x2c/0x5c
[  +0.000009]  kasan_set_track+0x2c/0x40
[  +0.000007]  kasan_set_free_info+0x28/0x50
[  +0.000009]  ____kasan_slab_free+0x128/0x1d4
[  +0.000008]  __kasan_slab_free+0x18/0x24
[  +0.000007]  slab_free_freelist_hook+0x108/0x230
[  +0.000010]  kfree+0x110/0x35c
[  +0.000008]  release_nodes+0xf0/0x16c
[  +0.000009]  devres_release_group+0x180/0x270
[  +0.000008]  take_down_aggregate_device+0xcc/0x160
[  +0.000010]  component_del+0x18c/0x360
[  +0.000009]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]
[  +0.000013]  platform_remove+0x64/0xb0
[  +0.000008]  device_remove+0xb8/0x154
[  +0.000009]  device_release_driver_internal+0x398/0x5b0
[  +0.000009]  driver_detach+0xac/0x1b0
[  +0.000009]  bus_remove_driver+0x158/0x29c
[  +0.000008]  driver_unregister+0x70/0xb0
[  +0.000009]  platform_driver_unregister+0x20/0x2c
[  +0.000007]  meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi]
[  +0.000012]  __do_sys_delete_module+0x288/0x400
[  +0.000009]  __arm64_sys_delete_module+0x5c/0x80
[  +0.000009]  invoke_syscall+0x74/0x260
[  +0.000008]  el0_svc_common.constprop.0+0xcc/0x260
[  +0.000008]  do_el0_svc+0x50/0x70
[  +0.000007]  el0_svc+0x68/0x1a0
[  +0.000008]  el0t_64_sync_handler+0x11c/0x150
[  +0.000009]  el0t_64_sync+0x18c/0x190

[  +0.000013] The buggy address belongs to the object at ffff00003da29000
               which belongs to the cache kmalloc-1k of size 1024
[  +0.000008] The buggy address is located 496 bytes inside of
               1024-byte region [ffff00003da29000, ffff00003da29400)

[  +0.000015] The buggy address belongs to the physical page:
[  +0.000009] page:fffffc0000f68a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3da28
[  +0.000012] head:fffffc0000f68a00 order:3 compound_mapcount:0 compound_pincount:0
[  +0.000009] flags: 0xffff00000010200(slab|head|node=0|zone=0|lastcpupid=0xffff)
[  +0.000019] raw: 0ffff00000010200 fffffc0000eb5c08 fffffc0000d96608 ffff000000002a80
[  +0.000008] raw: 0000000000000000 00000000000a000a 00000001ffffffff 0000000000000000
[  +0.000008] page dumped because: kasan: bad access detected

[  +0.000011] Memory state around the buggy address:
[  +0.000009]  ffff00003da29080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]  ffff00003da29100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007] >ffff00003da29180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007]                                                              ^
[  +0.000008]  ffff00003da29200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000006]  ffff00003da29280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  +0.000007] ==================================================================

Fix by keeping track of which encoders were initialised in the meson_drm
structure and manually removing their bridges at aggregate driver's unbind
time.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220920222842.1053234-1-adrian.larumbe@collabora.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/meson/meson_drv.c          |  4 ++++
 drivers/gpu/drm/meson/meson_drv.h          |  7 +++++++
 drivers/gpu/drm/meson/meson_encoder_cvbs.c | 13 +++++++++++++
 drivers/gpu/drm/meson/meson_encoder_cvbs.h |  1 +
 drivers/gpu/drm/meson/meson_encoder_hdmi.c | 13 +++++++++++++
 drivers/gpu/drm/meson/meson_encoder_hdmi.h |  1 +
 6 files changed, 39 insertions(+)

diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index 8444d90165fb..86b90d0f5780 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -390,6 +390,10 @@ static void meson_drv_unbind(struct device *dev)
 	drm_atomic_helper_shutdown(drm);
 	free_irq(priv->vsync_irq, drm);
 	drm_dev_put(drm);
+
+	meson_encoder_hdmi_remove(priv);
+	meson_encoder_cvbs_remove(priv);
+
 	component_unbind_all(dev, drm);
 
 	if (priv->afbcd.ops)
diff --git a/drivers/gpu/drm/meson/meson_drv.h b/drivers/gpu/drm/meson/meson_drv.h
index 177dac3ca3be..c62ee358456f 100644
--- a/drivers/gpu/drm/meson/meson_drv.h
+++ b/drivers/gpu/drm/meson/meson_drv.h
@@ -25,6 +25,12 @@ enum vpu_compatible {
 	VPU_COMPATIBLE_G12A = 3,
 };
 
+enum {
+	MESON_ENC_CVBS = 0,
+	MESON_ENC_HDMI,
+	MESON_ENC_LAST,
+};
+
 struct meson_drm_match_data {
 	enum vpu_compatible compat;
 	struct meson_afbcd_ops *afbcd_ops;
@@ -51,6 +57,7 @@ struct meson_drm {
 	struct drm_crtc *crtc;
 	struct drm_plane *primary_plane;
 	struct drm_plane *overlay_plane;
+	void *encoders[MESON_ENC_LAST];
 
 	const struct meson_drm_soc_limits *limits;
 
diff --git a/drivers/gpu/drm/meson/meson_encoder_cvbs.c b/drivers/gpu/drm/meson/meson_encoder_cvbs.c
index 8110a6e39320..5675bc2a92cf 100644
--- a/drivers/gpu/drm/meson/meson_encoder_cvbs.c
+++ b/drivers/gpu/drm/meson/meson_encoder_cvbs.c
@@ -281,5 +281,18 @@ int meson_encoder_cvbs_init(struct meson_drm *priv)
 	}
 	drm_connector_attach_encoder(connector, &meson_encoder_cvbs->encoder);
 
+	priv->encoders[MESON_ENC_CVBS] = meson_encoder_cvbs;
+
 	return 0;
 }
+
+void meson_encoder_cvbs_remove(struct meson_drm *priv)
+{
+	struct meson_encoder_cvbs *meson_encoder_cvbs;
+
+	if (priv->encoders[MESON_ENC_CVBS]) {
+		meson_encoder_cvbs = priv->encoders[MESON_ENC_CVBS];
+		drm_bridge_remove(&meson_encoder_cvbs->bridge);
+		drm_bridge_remove(meson_encoder_cvbs->next_bridge);
+	}
+}
diff --git a/drivers/gpu/drm/meson/meson_encoder_cvbs.h b/drivers/gpu/drm/meson/meson_encoder_cvbs.h
index 61d9d183ce7f..09710fec3c66 100644
--- a/drivers/gpu/drm/meson/meson_encoder_cvbs.h
+++ b/drivers/gpu/drm/meson/meson_encoder_cvbs.h
@@ -25,5 +25,6 @@ struct meson_cvbs_mode {
 extern struct meson_cvbs_mode meson_cvbs_modes[MESON_CVBS_MODES_COUNT];
 
 int meson_encoder_cvbs_init(struct meson_drm *priv);
+void meson_encoder_cvbs_remove(struct meson_drm *priv);
 
 #endif /* __MESON_VENC_CVBS_H */
diff --git a/drivers/gpu/drm/meson/meson_encoder_hdmi.c b/drivers/gpu/drm/meson/meson_encoder_hdmi.c
index 2f616c55c271..53231bfdf7e2 100644
--- a/drivers/gpu/drm/meson/meson_encoder_hdmi.c
+++ b/drivers/gpu/drm/meson/meson_encoder_hdmi.c
@@ -452,6 +452,8 @@ int meson_encoder_hdmi_init(struct meson_drm *priv)
 		meson_encoder_hdmi->cec_notifier = notifier;
 	}
 
+	priv->encoders[MESON_ENC_HDMI] = meson_encoder_hdmi;
+
 	dev_dbg(priv->dev, "HDMI encoder initialized\n");
 
 	return 0;
@@ -460,3 +462,14 @@ int meson_encoder_hdmi_init(struct meson_drm *priv)
 	of_node_put(remote);
 	return ret;
 }
+
+void meson_encoder_hdmi_remove(struct meson_drm *priv)
+{
+	struct meson_encoder_hdmi *meson_encoder_hdmi;
+
+	if (priv->encoders[MESON_ENC_HDMI]) {
+		meson_encoder_hdmi = priv->encoders[MESON_ENC_HDMI];
+		drm_bridge_remove(&meson_encoder_hdmi->bridge);
+		drm_bridge_remove(meson_encoder_hdmi->next_bridge);
+	}
+}
diff --git a/drivers/gpu/drm/meson/meson_encoder_hdmi.h b/drivers/gpu/drm/meson/meson_encoder_hdmi.h
index ed19494f0956..a6cd38eb5f71 100644
--- a/drivers/gpu/drm/meson/meson_encoder_hdmi.h
+++ b/drivers/gpu/drm/meson/meson_encoder_hdmi.h
@@ -8,5 +8,6 @@
 #define __MESON_ENCODER_HDMI_H
 
 int meson_encoder_hdmi_init(struct meson_drm *priv);
+void meson_encoder_hdmi_remove(struct meson_drm *priv);
 
 #endif /* __MESON_ENCODER_HDMI_H */
-- 
2.35.1

[PATCH AUTOSEL 6.0 38/44] drm/exynos: Fix return type for mixer_mode_valid and hdmi_mode_valid

[Sasha Levin]

From: Nathan Huckleberry <nhuck@google.com>

[ Upstream commit 1261255531088208daeca818e2b486030b5339e5 ]

The field mode_valid in exynos_drm_crtc_ops is expected to be of type enum
drm_mode_status (*mode_valid)(struct exynos_drm_crtc *crtc,
                                   const struct drm_display_mode *mode);

Likewise for mode_valid in drm_connector_helper_funcs.

The mismatched return type breaks forward edge kCFI since the underlying
function definition does not match the function hook definition.

The return type of mixer_mode_valid and hdmi_mode_valid should be changed
from int to enum drm_mode_status.

Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://protect2.fireeye.com/v1/url?k=3e644738-5fef521d-3e65cc77-
74fe485cbff6-36ad29bf912d3c9f&q=1&e=5cc06174-77dd-4abd-ab50-
155da5711aa3&u=https%3A%2F%2Fgithub.com%2FClangBuiltLinux%2Flinux%2Fissues%2F
1703
Cc: llvm@lists.linux.dev
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/exynos/exynos_hdmi.c  | 4 ++--
 drivers/gpu/drm/exynos/exynos_mixer.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 10b0036f8a2e..8453359c92e8 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -922,8 +922,8 @@ static int hdmi_find_phy_conf(struct hdmi_context *hdata, u32 pixel_clock)
 	return -EINVAL;
 }
 
-static int hdmi_mode_valid(struct drm_connector *connector,
-			struct drm_display_mode *mode)
+static enum drm_mode_status hdmi_mode_valid(struct drm_connector *connector,
+					    struct drm_display_mode *mode)
 {
 	struct hdmi_context *hdata = connector_to_hdmi(connector);
 	int ret;
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index 65260a658684..8d333db813b7 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -1045,7 +1045,7 @@ static void mixer_atomic_disable(struct exynos_drm_crtc *crtc)
 	clear_bit(MXR_BIT_POWERED, &ctx->flags);
 }
 
-static int mixer_mode_valid(struct exynos_drm_crtc *crtc,
+static enum drm_mode_status mixer_mode_valid(struct exynos_drm_crtc *crtc,
 		const struct drm_display_mode *mode)
 {
 	struct mixer_context *ctx = crtc->ctx;
-- 
2.35.1

[PATCH AUTOSEL 6.0 38/44] drm/exynos: Fix return type for mixer_mode_valid and hdmi_mode_valid

[Sasha Levin]

From: Nathan Huckleberry <nhuck@google.com>

[ Upstream commit 1261255531088208daeca818e2b486030b5339e5 ]

The field mode_valid in exynos_drm_crtc_ops is expected to be of type enum
drm_mode_status (*mode_valid)(struct exynos_drm_crtc *crtc,
                                   const struct drm_display_mode *mode);

Likewise for mode_valid in drm_connector_helper_funcs.

The mismatched return type breaks forward edge kCFI since the underlying
function definition does not match the function hook definition.

The return type of mixer_mode_valid and hdmi_mode_valid should be changed
from int to enum drm_mode_status.

Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://protect2.fireeye.com/v1/url?k=3e644738-5fef521d-3e65cc77-
74fe485cbff6-36ad29bf912d3c9f&q=1&e=5cc06174-77dd-4abd-ab50-
155da5711aa3&u=https%3A%2F%2Fgithub.com%2FClangBuiltLinux%2Flinux%2Fissues%2F
1703
Cc: llvm@lists.linux.dev
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/exynos/exynos_hdmi.c  | 4 ++--
 drivers/gpu/drm/exynos/exynos_mixer.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 10b0036f8a2e..8453359c92e8 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -922,8 +922,8 @@ static int hdmi_find_phy_conf(struct hdmi_context *hdata, u32 pixel_clock)
 	return -EINVAL;
 }
 
-static int hdmi_mode_valid(struct drm_connector *connector,
-			struct drm_display_mode *mode)
+static enum drm_mode_status hdmi_mode_valid(struct drm_connector *connector,
+					    struct drm_display_mode *mode)
 {
 	struct hdmi_context *hdata = connector_to_hdmi(connector);
 	int ret;
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index 65260a658684..8d333db813b7 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -1045,7 +1045,7 @@ static void mixer_atomic_disable(struct exynos_drm_crtc *crtc)
 	clear_bit(MXR_BIT_POWERED, &ctx->flags);
 }
 
-static int mixer_mode_valid(struct exynos_drm_crtc *crtc,
+static enum drm_mode_status mixer_mode_valid(struct exynos_drm_crtc *crtc,
 		const struct drm_display_mode *mode)
 {
 	struct mixer_context *ctx = crtc->ctx;
-- 
2.35.1

[PATCH AUTOSEL 6.0 38/44] drm/exynos: Fix return type for mixer_mode_valid and hdmi_mode_valid

[Sasha Levin]

From: Nathan Huckleberry <nhuck@google.com>

[ Upstream commit 1261255531088208daeca818e2b486030b5339e5 ]

The field mode_valid in exynos_drm_crtc_ops is expected to be of type enum
drm_mode_status (*mode_valid)(struct exynos_drm_crtc *crtc,
                                   const struct drm_display_mode *mode);

Likewise for mode_valid in drm_connector_helper_funcs.

The mismatched return type breaks forward edge kCFI since the underlying
function definition does not match the function hook definition.

The return type of mixer_mode_valid and hdmi_mode_valid should be changed
from int to enum drm_mode_status.

Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://protect2.fireeye.com/v1/url?k=3e644738-5fef521d-3e65cc77-
74fe485cbff6-36ad29bf912d3c9f&q=1&e=5cc06174-77dd-4abd-ab50-
155da5711aa3&u=https%3A%2F%2Fgithub.com%2FClangBuiltLinux%2Flinux%2Fissues%2F
1703
Cc: llvm@lists.linux.dev
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/exynos/exynos_hdmi.c  | 4 ++--
 drivers/gpu/drm/exynos/exynos_mixer.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 10b0036f8a2e..8453359c92e8 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -922,8 +922,8 @@ static int hdmi_find_phy_conf(struct hdmi_context *hdata, u32 pixel_clock)
 	return -EINVAL;
 }
 
-static int hdmi_mode_valid(struct drm_connector *connector,
-			struct drm_display_mode *mode)
+static enum drm_mode_status hdmi_mode_valid(struct drm_connector *connector,
+					    struct drm_display_mode *mode)
 {
 	struct hdmi_context *hdata = connector_to_hdmi(connector);
 	int ret;
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index 65260a658684..8d333db813b7 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -1045,7 +1045,7 @@ static void mixer_atomic_disable(struct exynos_drm_crtc *crtc)
 	clear_bit(MXR_BIT_POWERED, &ctx->flags);
 }
 
-static int mixer_mode_valid(struct exynos_drm_crtc *crtc,
+static enum drm_mode_status mixer_mode_valid(struct exynos_drm_crtc *crtc,
 		const struct drm_display_mode *mode)
 {
 	struct mixer_context *ctx = crtc->ctx;
-- 
2.35.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH AUTOSEL 6.0 39/44] mmc: sdhci-msm: add compatible string check for sdm670

[Sasha Levin]

From: Richard Acayan <mailingradian@gmail.com>

[ Upstream commit 4de95950d970c71a9e82a24573bb7a44fd95baa1 ]

The Snapdragon 670 has the same quirk as Snapdragon 845 (needing to
restore the dll config). Add a compatible string check to detect the need
for this.

Signed-off-by: Richard Acayan <mailingradian@gmail.com>
Reviewed-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220923014322.33620-3-mailingradian@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mmc/host/sdhci-msm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index dc2991422a87..3a091a387ecb 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -2441,6 +2441,7 @@ static const struct of_device_id sdhci_msm_dt_match[] = {
 	 */
 	{.compatible = "qcom,sdhci-msm-v4", .data = &sdhci_msm_mci_var},
 	{.compatible = "qcom,sdhci-msm-v5", .data = &sdhci_msm_v5_var},
+	{.compatible = "qcom,sdm670-sdhci", .data = &sdm845_sdhci_var},
 	{.compatible = "qcom,sdm845-sdhci", .data = &sdm845_sdhci_var},
 	{.compatible = "qcom,sc7180-sdhci", .data = &sdm845_sdhci_var},
 	{},
-- 
2.35.1

[PATCH AUTOSEL 6.0 40/44] drm/dp: Don't rewrite link config when setting phy test pattern

[Sasha Levin]

From: Khaled Almahallawy <khaled.almahallawy@intel.com>

[ Upstream commit 7b4d8db657192066bc6f1f6635d348413dac1e18 ]

The sequence for Source DP PHY CTS automation is [2][1]:
1- Emulate successful Link Training(LT)
2- Short HPD and change link rates and number of lanes by LT.
(This is same flow for Link Layer CTS)
3- Short HPD and change PHY test pattern and swing/pre-emphasis
levels (This step should not trigger LT)

The problem is with DP PHY compliance setup as follow:

     [DPTX + on board LTTPR]------Main Link--->[Scope]
     	     	        ^                         |
			|                         |
			|                         |
			----------Aux Ch------>[Aux Emulator]

At step 3, before writing TRAINING_LANEx_SET/LINK_QUAL_PATTERN_SET
to declare the pattern/swing requested by scope, we write link
config in LINK_BW_SET/LANE_COUNT_SET on a port that has LTTPR.
As LTTPR snoops aux transaction, LINK_BW_SET/LANE_COUNT_SET writes
indicate a LT will start [Check DP 2.0 E11 -Sec 3.6.8.2 & 3.6.8.6.3],
and LTTPR will reset the link and stop sending DP signals to
DPTX/Scope causing the measurements to fail. Note that step 3 will
not trigger LT and DP link will never recovered by the
Aux Emulator/Scope.

The reset of link can be tested with a monitor connected to LTTPR
port simply by writing to LINK_BW_SET or LANE_COUNT_SET as follow

  igt/tools/dpcd_reg write --offset=0x100 --value 0x14 --device=2

OR

  printf '\x14' | sudo dd of=/dev/drm_dp_aux2 bs=1 count=1 conv=notrunc
  seek=$((0x100))

This single aux write causes the screen to blank, sending short HPD to
DPTX, setting LINK_STATUS_UPDATE = 1 in DPCD 0x204, and triggering LT.

As stated in [1]:
"Before any TX electrical testing can be performed, the link between a
DPTX and DPRX (in this case, a piece of test equipment), including all
LTTPRs within the path, shall be trained as defined in this Standard."

In addition, changing Phy pattern/Swing/Pre-emphasis (Step 3) uses the
same link rate and lane count applied on step 2, so no need to redo LT.

The fix is to not rewrite link config in step 3, and just writes
TRAINING_LANEx_SET and LINK_QUAL_PATTERN_SET

[1]: DP 2.0 E11 - 3.6.11.1 LTTPR DPTX_PHY Electrical Compliance

[2]: Configuring UnigrafDPTC Controller - Automation Test Sequence
https://www.keysight.com/us/en/assets/9922-01244/help-files/
D9040DPPC-DisplayPort-Test-Software-Online-Help-latest.chm

Cc: Imre Deak <imre.deak@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Or Cochvi <or.cochvi@intel.com>
Signed-off-by: Khaled Almahallawy <khaled.almahallawy@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220916054900.415804-1-khaled.almahallawy@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/display/drm_dp_helper.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/gpu/drm/display/drm_dp_helper.c b/drivers/gpu/drm/display/drm_dp_helper.c
index e5bab236b3ae..4c0c4e3d1e20 100644
--- a/drivers/gpu/drm/display/drm_dp_helper.c
+++ b/drivers/gpu/drm/display/drm_dp_helper.c
@@ -2638,17 +2638,8 @@ int drm_dp_set_phy_test_pattern(struct drm_dp_aux *aux,
 				struct drm_dp_phy_test_params *data, u8 dp_rev)
 {
 	int err, i;
-	u8 link_config[2];
 	u8 test_pattern;
 
-	link_config[0] = drm_dp_link_rate_to_bw_code(data->link_rate);
-	link_config[1] = data->num_lanes;
-	if (data->enhanced_frame_cap)
-		link_config[1] |= DP_LANE_COUNT_ENHANCED_FRAME_EN;
-	err = drm_dp_dpcd_write(aux, DP_LINK_BW_SET, link_config, 2);
-	if (err < 0)
-		return err;
-
 	test_pattern = data->phy_pattern;
 	if (dp_rev < 0x12) {
 		test_pattern = (test_pattern << 2) &
-- 
2.35.1

[PATCH AUTOSEL 6.0 40/44] drm/dp: Don't rewrite link config when setting phy test pattern

[Sasha Levin]

From: Khaled Almahallawy <khaled.almahallawy@intel.com>

[ Upstream commit 7b4d8db657192066bc6f1f6635d348413dac1e18 ]

The sequence for Source DP PHY CTS automation is [2][1]:
1- Emulate successful Link Training(LT)
2- Short HPD and change link rates and number of lanes by LT.
(This is same flow for Link Layer CTS)
3- Short HPD and change PHY test pattern and swing/pre-emphasis
levels (This step should not trigger LT)

The problem is with DP PHY compliance setup as follow:

     [DPTX + on board LTTPR]------Main Link--->[Scope]
     	     	        ^                         |
			|                         |
			|                         |
			----------Aux Ch------>[Aux Emulator]

At step 3, before writing TRAINING_LANEx_SET/LINK_QUAL_PATTERN_SET
to declare the pattern/swing requested by scope, we write link
config in LINK_BW_SET/LANE_COUNT_SET on a port that has LTTPR.
As LTTPR snoops aux transaction, LINK_BW_SET/LANE_COUNT_SET writes
indicate a LT will start [Check DP 2.0 E11 -Sec 3.6.8.2 & 3.6.8.6.3],
and LTTPR will reset the link and stop sending DP signals to
DPTX/Scope causing the measurements to fail. Note that step 3 will
not trigger LT and DP link will never recovered by the
Aux Emulator/Scope.

The reset of link can be tested with a monitor connected to LTTPR
port simply by writing to LINK_BW_SET or LANE_COUNT_SET as follow

  igt/tools/dpcd_reg write --offset=0x100 --value 0x14 --device=2

OR

  printf '\x14' | sudo dd of=/dev/drm_dp_aux2 bs=1 count=1 conv=notrunc
  seek=$((0x100))

This single aux write causes the screen to blank, sending short HPD to
DPTX, setting LINK_STATUS_UPDATE = 1 in DPCD 0x204, and triggering LT.

As stated in [1]:
"Before any TX electrical testing can be performed, the link between a
DPTX and DPRX (in this case, a piece of test equipment), including all
LTTPRs within the path, shall be trained as defined in this Standard."

In addition, changing Phy pattern/Swing/Pre-emphasis (Step 3) uses the
same link rate and lane count applied on step 2, so no need to redo LT.

The fix is to not rewrite link config in step 3, and just writes
TRAINING_LANEx_SET and LINK_QUAL_PATTERN_SET

[1]: DP 2.0 E11 - 3.6.11.1 LTTPR DPTX_PHY Electrical Compliance

[2]: Configuring UnigrafDPTC Controller - Automation Test Sequence
https://www.keysight.com/us/en/assets/9922-01244/help-files/
D9040DPPC-DisplayPort-Test-Software-Online-Help-latest.chm

Cc: Imre Deak <imre.deak@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Or Cochvi <or.cochvi@intel.com>
Signed-off-by: Khaled Almahallawy <khaled.almahallawy@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220916054900.415804-1-khaled.almahallawy@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/display/drm_dp_helper.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/gpu/drm/display/drm_dp_helper.c b/drivers/gpu/drm/display/drm_dp_helper.c
index e5bab236b3ae..4c0c4e3d1e20 100644
--- a/drivers/gpu/drm/display/drm_dp_helper.c
+++ b/drivers/gpu/drm/display/drm_dp_helper.c
@@ -2638,17 +2638,8 @@ int drm_dp_set_phy_test_pattern(struct drm_dp_aux *aux,
 				struct drm_dp_phy_test_params *data, u8 dp_rev)
 {
 	int err, i;
-	u8 link_config[2];
 	u8 test_pattern;
 
-	link_config[0] = drm_dp_link_rate_to_bw_code(data->link_rate);
-	link_config[1] = data->num_lanes;
-	if (data->enhanced_frame_cap)
-		link_config[1] |= DP_LANE_COUNT_ENHANCED_FRAME_EN;
-	err = drm_dp_dpcd_write(aux, DP_LINK_BW_SET, link_config, 2);
-	if (err < 0)
-		return err;
-
 	test_pattern = data->phy_pattern;
 	if (dp_rev < 0x12) {
 		test_pattern = (test_pattern << 2) &
-- 
2.35.1

[PATCH AUTOSEL 6.0 41/44] drm/amd/display: Remove interface for periodic interrupt 1

[Sasha Levin]

From: Aric Cyr <aric.cyr@amd.com>

[ Upstream commit 97d8d6f075bd8f988589be02b91f6fa644d0b0b8 ]

[why]
Only a single VLINE interrupt is available so interface should not
expose the second one which is used by DMU firmware.

[how]
Remove references to periodic_interrupt1 and VLINE1 from DC interfaces.

Reviewed-by: Jaehyun Chung <jaehyun.chung@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c      | 16 +++------
 drivers/gpu/drm/amd/display/dc/dc_stream.h    |  6 ++--
 .../amd/display/dc/dcn10/dcn10_hw_sequencer.c | 35 ++++++-------------
 .../amd/display/dc/dcn10/dcn10_hw_sequencer.h |  3 +-
 .../gpu/drm/amd/display/dc/inc/hw_sequencer.h |  8 +----
 5 files changed, 18 insertions(+), 50 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index fb22c3d70528..18d6ee666297 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -2753,11 +2753,8 @@ static void copy_stream_update_to_stream(struct dc *dc,
 	if (update->abm_level)
 		stream->abm_level = *update->abm_level;
 
-	if (update->periodic_interrupt0)
-		stream->periodic_interrupt0 = *update->periodic_interrupt0;
-
-	if (update->periodic_interrupt1)
-		stream->periodic_interrupt1 = *update->periodic_interrupt1;
+	if (update->periodic_interrupt)
+		stream->periodic_interrupt = *update->periodic_interrupt;
 
 	if (update->gamut_remap)
 		stream->gamut_remap_matrix = *update->gamut_remap;
@@ -2987,13 +2984,8 @@ static void commit_planes_do_stream_update(struct dc *dc,
 
 		if (!pipe_ctx->top_pipe &&  !pipe_ctx->prev_odm_pipe && pipe_ctx->stream == stream) {
 
-			if (stream_update->periodic_interrupt0 &&
-					dc->hwss.setup_periodic_interrupt)
-				dc->hwss.setup_periodic_interrupt(dc, pipe_ctx, VLINE0);
-
-			if (stream_update->periodic_interrupt1 &&
-					dc->hwss.setup_periodic_interrupt)
-				dc->hwss.setup_periodic_interrupt(dc, pipe_ctx, VLINE1);
+			if (stream_update->periodic_interrupt && dc->hwss.setup_periodic_interrupt)
+				dc->hwss.setup_periodic_interrupt(dc, pipe_ctx);
 
 			if ((stream_update->hdr_static_metadata && !stream->use_dynamic_meta) ||
 					stream_update->vrr_infopacket ||
diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h
index f87f852d4829..ae0922e98ef7 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_stream.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h
@@ -212,8 +212,7 @@ struct dc_stream_state {
 	/* DMCU info */
 	unsigned int abm_level;
 
-	struct periodic_interrupt_config periodic_interrupt0;
-	struct periodic_interrupt_config periodic_interrupt1;
+	struct periodic_interrupt_config periodic_interrupt;
 
 	/* from core_stream struct */
 	struct dc_context *ctx;
@@ -283,8 +282,7 @@ struct dc_stream_update {
 	struct dc_info_packet *hdr_static_metadata;
 	unsigned int *abm_level;
 
-	struct periodic_interrupt_config *periodic_interrupt0;
-	struct periodic_interrupt_config *periodic_interrupt1;
+	struct periodic_interrupt_config *periodic_interrupt;
 
 	struct dc_info_packet *vrr_infopacket;
 	struct dc_info_packet *vsc_infopacket;
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index 5b5d952b2b8c..bc9b92838ea9 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -3768,7 +3768,7 @@ void dcn10_calc_vupdate_position(
 {
 	const struct dc_crtc_timing *dc_crtc_timing = &pipe_ctx->stream->timing;
 	int vline_int_offset_from_vupdate =
-			pipe_ctx->stream->periodic_interrupt0.lines_offset;
+			pipe_ctx->stream->periodic_interrupt.lines_offset;
 	int vupdate_offset_from_vsync = dc->hwss.get_vupdate_offset_from_vsync(pipe_ctx);
 	int start_position;
 
@@ -3793,18 +3793,10 @@ void dcn10_calc_vupdate_position(
 static void dcn10_cal_vline_position(
 		struct dc *dc,
 		struct pipe_ctx *pipe_ctx,
-		enum vline_select vline,
 		uint32_t *start_line,
 		uint32_t *end_line)
 {
-	enum vertical_interrupt_ref_point ref_point = INVALID_POINT;
-
-	if (vline == VLINE0)
-		ref_point = pipe_ctx->stream->periodic_interrupt0.ref_point;
-	else if (vline == VLINE1)
-		ref_point = pipe_ctx->stream->periodic_interrupt1.ref_point;
-
-	switch (ref_point) {
+	switch (pipe_ctx->stream->periodic_interrupt.ref_point) {
 	case START_V_UPDATE:
 		dcn10_calc_vupdate_position(
 				dc,
@@ -3813,7 +3805,9 @@ static void dcn10_cal_vline_position(
 				end_line);
 		break;
 	case START_V_SYNC:
-		// Suppose to do nothing because vsync is 0;
+		// vsync is line 0 so start_line is just the requested line offset
+		*start_line = pipe_ctx->stream->periodic_interrupt.lines_offset;
+		*end_line = *start_line + 2;
 		break;
 	default:
 		ASSERT(0);
@@ -3823,24 +3817,15 @@ static void dcn10_cal_vline_position(
 
 void dcn10_setup_periodic_interrupt(
 		struct dc *dc,
-		struct pipe_ctx *pipe_ctx,
-		enum vline_select vline)
+		struct pipe_ctx *pipe_ctx)
 {
 	struct timing_generator *tg = pipe_ctx->stream_res.tg;
+	uint32_t start_line = 0;
+	uint32_t end_line = 0;
 
-	if (vline == VLINE0) {
-		uint32_t start_line = 0;
-		uint32_t end_line = 0;
+	dcn10_cal_vline_position(dc, pipe_ctx, &start_line, &end_line);
 
-		dcn10_cal_vline_position(dc, pipe_ctx, vline, &start_line, &end_line);
-
-		tg->funcs->setup_vertical_interrupt0(tg, start_line, end_line);
-
-	} else if (vline == VLINE1) {
-		pipe_ctx->stream_res.tg->funcs->setup_vertical_interrupt1(
-				tg,
-				pipe_ctx->stream->periodic_interrupt1.lines_offset);
-	}
+	tg->funcs->setup_vertical_interrupt0(tg, start_line, end_line);
 }
 
 void dcn10_setup_vupdate_interrupt(struct dc *dc, struct pipe_ctx *pipe_ctx)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h
index 9ae07c77fdc0..0ef7bf7ddb75 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h
@@ -175,8 +175,7 @@ void dcn10_set_cursor_attribute(struct pipe_ctx *pipe_ctx);
 void dcn10_set_cursor_sdr_white_level(struct pipe_ctx *pipe_ctx);
 void dcn10_setup_periodic_interrupt(
 		struct dc *dc,
-		struct pipe_ctx *pipe_ctx,
-		enum vline_select vline);
+		struct pipe_ctx *pipe_ctx);
 enum dc_status dcn10_set_clock(struct dc *dc,
 		enum dc_clock_type clock_type,
 		uint32_t clk_khz,
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
index ccb3c719fc4d..ac94dba72c18 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
@@ -32,11 +32,6 @@
 #include "inc/hw/link_encoder.h"
 #include "core_status.h"
 
-enum vline_select {
-	VLINE0,
-	VLINE1
-};
-
 struct pipe_ctx;
 struct dc_state;
 struct dc_stream_status;
@@ -116,8 +111,7 @@ struct hw_sequencer_funcs {
 			int group_index, int group_size,
 			struct pipe_ctx *grouped_pipes[]);
 	void (*setup_periodic_interrupt)(struct dc *dc,
-			struct pipe_ctx *pipe_ctx,
-			enum vline_select vline);
+			struct pipe_ctx *pipe_ctx);
 	void (*set_drr)(struct pipe_ctx **pipe_ctx, int num_pipes,
 			struct dc_crtc_timing_adjust adjust);
 	void (*set_static_screen_control)(struct pipe_ctx **pipe_ctx,
-- 
2.35.1

[PATCH AUTOSEL 6.0 41/44] drm/amd/display: Remove interface for periodic interrupt 1

[Sasha Levin]

From: Aric Cyr <aric.cyr@amd.com>

[ Upstream commit 97d8d6f075bd8f988589be02b91f6fa644d0b0b8 ]

[why]
Only a single VLINE interrupt is available so interface should not
expose the second one which is used by DMU firmware.

[how]
Remove references to periodic_interrupt1 and VLINE1 from DC interfaces.

Reviewed-by: Jaehyun Chung <jaehyun.chung@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c      | 16 +++------
 drivers/gpu/drm/amd/display/dc/dc_stream.h    |  6 ++--
 .../amd/display/dc/dcn10/dcn10_hw_sequencer.c | 35 ++++++-------------
 .../amd/display/dc/dcn10/dcn10_hw_sequencer.h |  3 +-
 .../gpu/drm/amd/display/dc/inc/hw_sequencer.h |  8 +----
 5 files changed, 18 insertions(+), 50 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index fb22c3d70528..18d6ee666297 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -2753,11 +2753,8 @@ static void copy_stream_update_to_stream(struct dc *dc,
 	if (update->abm_level)
 		stream->abm_level = *update->abm_level;
 
-	if (update->periodic_interrupt0)
-		stream->periodic_interrupt0 = *update->periodic_interrupt0;
-
-	if (update->periodic_interrupt1)
-		stream->periodic_interrupt1 = *update->periodic_interrupt1;
+	if (update->periodic_interrupt)
+		stream->periodic_interrupt = *update->periodic_interrupt;
 
 	if (update->gamut_remap)
 		stream->gamut_remap_matrix = *update->gamut_remap;
@@ -2987,13 +2984,8 @@ static void commit_planes_do_stream_update(struct dc *dc,
 
 		if (!pipe_ctx->top_pipe &&  !pipe_ctx->prev_odm_pipe && pipe_ctx->stream == stream) {
 
-			if (stream_update->periodic_interrupt0 &&
-					dc->hwss.setup_periodic_interrupt)
-				dc->hwss.setup_periodic_interrupt(dc, pipe_ctx, VLINE0);
-
-			if (stream_update->periodic_interrupt1 &&
-					dc->hwss.setup_periodic_interrupt)
-				dc->hwss.setup_periodic_interrupt(dc, pipe_ctx, VLINE1);
+			if (stream_update->periodic_interrupt && dc->hwss.setup_periodic_interrupt)
+				dc->hwss.setup_periodic_interrupt(dc, pipe_ctx);
 
 			if ((stream_update->hdr_static_metadata && !stream->use_dynamic_meta) ||
 					stream_update->vrr_infopacket ||
diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h
index f87f852d4829..ae0922e98ef7 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_stream.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h
@@ -212,8 +212,7 @@ struct dc_stream_state {
 	/* DMCU info */
 	unsigned int abm_level;
 
-	struct periodic_interrupt_config periodic_interrupt0;
-	struct periodic_interrupt_config periodic_interrupt1;
+	struct periodic_interrupt_config periodic_interrupt;
 
 	/* from core_stream struct */
 	struct dc_context *ctx;
@@ -283,8 +282,7 @@ struct dc_stream_update {
 	struct dc_info_packet *hdr_static_metadata;
 	unsigned int *abm_level;
 
-	struct periodic_interrupt_config *periodic_interrupt0;
-	struct periodic_interrupt_config *periodic_interrupt1;
+	struct periodic_interrupt_config *periodic_interrupt;
 
 	struct dc_info_packet *vrr_infopacket;
 	struct dc_info_packet *vsc_infopacket;
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index 5b5d952b2b8c..bc9b92838ea9 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -3768,7 +3768,7 @@ void dcn10_calc_vupdate_position(
 {
 	const struct dc_crtc_timing *dc_crtc_timing = &pipe_ctx->stream->timing;
 	int vline_int_offset_from_vupdate =
-			pipe_ctx->stream->periodic_interrupt0.lines_offset;
+			pipe_ctx->stream->periodic_interrupt.lines_offset;
 	int vupdate_offset_from_vsync = dc->hwss.get_vupdate_offset_from_vsync(pipe_ctx);
 	int start_position;
 
@@ -3793,18 +3793,10 @@ void dcn10_calc_vupdate_position(
 static void dcn10_cal_vline_position(
 		struct dc *dc,
 		struct pipe_ctx *pipe_ctx,
-		enum vline_select vline,
 		uint32_t *start_line,
 		uint32_t *end_line)
 {
-	enum vertical_interrupt_ref_point ref_point = INVALID_POINT;
-
-	if (vline == VLINE0)
-		ref_point = pipe_ctx->stream->periodic_interrupt0.ref_point;
-	else if (vline == VLINE1)
-		ref_point = pipe_ctx->stream->periodic_interrupt1.ref_point;
-
-	switch (ref_point) {
+	switch (pipe_ctx->stream->periodic_interrupt.ref_point) {
 	case START_V_UPDATE:
 		dcn10_calc_vupdate_position(
 				dc,
@@ -3813,7 +3805,9 @@ static void dcn10_cal_vline_position(
 				end_line);
 		break;
 	case START_V_SYNC:
-		// Suppose to do nothing because vsync is 0;
+		// vsync is line 0 so start_line is just the requested line offset
+		*start_line = pipe_ctx->stream->periodic_interrupt.lines_offset;
+		*end_line = *start_line + 2;
 		break;
 	default:
 		ASSERT(0);
@@ -3823,24 +3817,15 @@ static void dcn10_cal_vline_position(
 
 void dcn10_setup_periodic_interrupt(
 		struct dc *dc,
-		struct pipe_ctx *pipe_ctx,
-		enum vline_select vline)
+		struct pipe_ctx *pipe_ctx)
 {
 	struct timing_generator *tg = pipe_ctx->stream_res.tg;
+	uint32_t start_line = 0;
+	uint32_t end_line = 0;
 
-	if (vline == VLINE0) {
-		uint32_t start_line = 0;
-		uint32_t end_line = 0;
+	dcn10_cal_vline_position(dc, pipe_ctx, &start_line, &end_line);
 
-		dcn10_cal_vline_position(dc, pipe_ctx, vline, &start_line, &end_line);
-
-		tg->funcs->setup_vertical_interrupt0(tg, start_line, end_line);
-
-	} else if (vline == VLINE1) {
-		pipe_ctx->stream_res.tg->funcs->setup_vertical_interrupt1(
-				tg,
-				pipe_ctx->stream->periodic_interrupt1.lines_offset);
-	}
+	tg->funcs->setup_vertical_interrupt0(tg, start_line, end_line);
 }
 
 void dcn10_setup_vupdate_interrupt(struct dc *dc, struct pipe_ctx *pipe_ctx)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h
index 9ae07c77fdc0..0ef7bf7ddb75 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h
@@ -175,8 +175,7 @@ void dcn10_set_cursor_attribute(struct pipe_ctx *pipe_ctx);
 void dcn10_set_cursor_sdr_white_level(struct pipe_ctx *pipe_ctx);
 void dcn10_setup_periodic_interrupt(
 		struct dc *dc,
-		struct pipe_ctx *pipe_ctx,
-		enum vline_select vline);
+		struct pipe_ctx *pipe_ctx);
 enum dc_status dcn10_set_clock(struct dc *dc,
 		enum dc_clock_type clock_type,
 		uint32_t clk_khz,
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
index ccb3c719fc4d..ac94dba72c18 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
@@ -32,11 +32,6 @@
 #include "inc/hw/link_encoder.h"
 #include "core_status.h"
 
-enum vline_select {
-	VLINE0,
-	VLINE1
-};
-
 struct pipe_ctx;
 struct dc_state;
 struct dc_stream_status;
@@ -116,8 +111,7 @@ struct hw_sequencer_funcs {
 			int group_index, int group_size,
 			struct pipe_ctx *grouped_pipes[]);
 	void (*setup_periodic_interrupt)(struct dc *dc,
-			struct pipe_ctx *pipe_ctx,
-			enum vline_select vline);
+			struct pipe_ctx *pipe_ctx);
 	void (*set_drr)(struct pipe_ctx **pipe_ctx, int num_pipes,
 			struct dc_crtc_timing_adjust adjust);
 	void (*set_static_screen_control)(struct pipe_ctx **pipe_ctx,
-- 
2.35.1

[PATCH AUTOSEL 6.0 41/44] drm/amd/display: Remove interface for periodic interrupt 1

[Sasha Levin]

From: Aric Cyr <aric.cyr@amd.com>

[ Upstream commit 97d8d6f075bd8f988589be02b91f6fa644d0b0b8 ]

[why]
Only a single VLINE interrupt is available so interface should not
expose the second one which is used by DMU firmware.

[how]
Remove references to periodic_interrupt1 and VLINE1 from DC interfaces.

Reviewed-by: Jaehyun Chung <jaehyun.chung@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c      | 16 +++------
 drivers/gpu/drm/amd/display/dc/dc_stream.h    |  6 ++--
 .../amd/display/dc/dcn10/dcn10_hw_sequencer.c | 35 ++++++-------------
 .../amd/display/dc/dcn10/dcn10_hw_sequencer.h |  3 +-
 .../gpu/drm/amd/display/dc/inc/hw_sequencer.h |  8 +----
 5 files changed, 18 insertions(+), 50 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index fb22c3d70528..18d6ee666297 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -2753,11 +2753,8 @@ static void copy_stream_update_to_stream(struct dc *dc,
 	if (update->abm_level)
 		stream->abm_level = *update->abm_level;
 
-	if (update->periodic_interrupt0)
-		stream->periodic_interrupt0 = *update->periodic_interrupt0;
-
-	if (update->periodic_interrupt1)
-		stream->periodic_interrupt1 = *update->periodic_interrupt1;
+	if (update->periodic_interrupt)
+		stream->periodic_interrupt = *update->periodic_interrupt;
 
 	if (update->gamut_remap)
 		stream->gamut_remap_matrix = *update->gamut_remap;
@@ -2987,13 +2984,8 @@ static void commit_planes_do_stream_update(struct dc *dc,
 
 		if (!pipe_ctx->top_pipe &&  !pipe_ctx->prev_odm_pipe && pipe_ctx->stream == stream) {
 
-			if (stream_update->periodic_interrupt0 &&
-					dc->hwss.setup_periodic_interrupt)
-				dc->hwss.setup_periodic_interrupt(dc, pipe_ctx, VLINE0);
-
-			if (stream_update->periodic_interrupt1 &&
-					dc->hwss.setup_periodic_interrupt)
-				dc->hwss.setup_periodic_interrupt(dc, pipe_ctx, VLINE1);
+			if (stream_update->periodic_interrupt && dc->hwss.setup_periodic_interrupt)
+				dc->hwss.setup_periodic_interrupt(dc, pipe_ctx);
 
 			if ((stream_update->hdr_static_metadata && !stream->use_dynamic_meta) ||
 					stream_update->vrr_infopacket ||
diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h
index f87f852d4829..ae0922e98ef7 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_stream.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h
@@ -212,8 +212,7 @@ struct dc_stream_state {
 	/* DMCU info */
 	unsigned int abm_level;
 
-	struct periodic_interrupt_config periodic_interrupt0;
-	struct periodic_interrupt_config periodic_interrupt1;
+	struct periodic_interrupt_config periodic_interrupt;
 
 	/* from core_stream struct */
 	struct dc_context *ctx;
@@ -283,8 +282,7 @@ struct dc_stream_update {
 	struct dc_info_packet *hdr_static_metadata;
 	unsigned int *abm_level;
 
-	struct periodic_interrupt_config *periodic_interrupt0;
-	struct periodic_interrupt_config *periodic_interrupt1;
+	struct periodic_interrupt_config *periodic_interrupt;
 
 	struct dc_info_packet *vrr_infopacket;
 	struct dc_info_packet *vsc_infopacket;
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index 5b5d952b2b8c..bc9b92838ea9 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -3768,7 +3768,7 @@ void dcn10_calc_vupdate_position(
 {
 	const struct dc_crtc_timing *dc_crtc_timing = &pipe_ctx->stream->timing;
 	int vline_int_offset_from_vupdate =
-			pipe_ctx->stream->periodic_interrupt0.lines_offset;
+			pipe_ctx->stream->periodic_interrupt.lines_offset;
 	int vupdate_offset_from_vsync = dc->hwss.get_vupdate_offset_from_vsync(pipe_ctx);
 	int start_position;
 
@@ -3793,18 +3793,10 @@ void dcn10_calc_vupdate_position(
 static void dcn10_cal_vline_position(
 		struct dc *dc,
 		struct pipe_ctx *pipe_ctx,
-		enum vline_select vline,
 		uint32_t *start_line,
 		uint32_t *end_line)
 {
-	enum vertical_interrupt_ref_point ref_point = INVALID_POINT;
-
-	if (vline == VLINE0)
-		ref_point = pipe_ctx->stream->periodic_interrupt0.ref_point;
-	else if (vline == VLINE1)
-		ref_point = pipe_ctx->stream->periodic_interrupt1.ref_point;
-
-	switch (ref_point) {
+	switch (pipe_ctx->stream->periodic_interrupt.ref_point) {
 	case START_V_UPDATE:
 		dcn10_calc_vupdate_position(
 				dc,
@@ -3813,7 +3805,9 @@ static void dcn10_cal_vline_position(
 				end_line);
 		break;
 	case START_V_SYNC:
-		// Suppose to do nothing because vsync is 0;
+		// vsync is line 0 so start_line is just the requested line offset
+		*start_line = pipe_ctx->stream->periodic_interrupt.lines_offset;
+		*end_line = *start_line + 2;
 		break;
 	default:
 		ASSERT(0);
@@ -3823,24 +3817,15 @@ static void dcn10_cal_vline_position(
 
 void dcn10_setup_periodic_interrupt(
 		struct dc *dc,
-		struct pipe_ctx *pipe_ctx,
-		enum vline_select vline)
+		struct pipe_ctx *pipe_ctx)
 {
 	struct timing_generator *tg = pipe_ctx->stream_res.tg;
+	uint32_t start_line = 0;
+	uint32_t end_line = 0;
 
-	if (vline == VLINE0) {
-		uint32_t start_line = 0;
-		uint32_t end_line = 0;
+	dcn10_cal_vline_position(dc, pipe_ctx, &start_line, &end_line);
 
-		dcn10_cal_vline_position(dc, pipe_ctx, vline, &start_line, &end_line);
-
-		tg->funcs->setup_vertical_interrupt0(tg, start_line, end_line);
-
-	} else if (vline == VLINE1) {
-		pipe_ctx->stream_res.tg->funcs->setup_vertical_interrupt1(
-				tg,
-				pipe_ctx->stream->periodic_interrupt1.lines_offset);
-	}
+	tg->funcs->setup_vertical_interrupt0(tg, start_line, end_line);
 }
 
 void dcn10_setup_vupdate_interrupt(struct dc *dc, struct pipe_ctx *pipe_ctx)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h
index 9ae07c77fdc0..0ef7bf7ddb75 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h
@@ -175,8 +175,7 @@ void dcn10_set_cursor_attribute(struct pipe_ctx *pipe_ctx);
 void dcn10_set_cursor_sdr_white_level(struct pipe_ctx *pipe_ctx);
 void dcn10_setup_periodic_interrupt(
 		struct dc *dc,
-		struct pipe_ctx *pipe_ctx,
-		enum vline_select vline);
+		struct pipe_ctx *pipe_ctx);
 enum dc_status dcn10_set_clock(struct dc *dc,
 		enum dc_clock_type clock_type,
 		uint32_t clk_khz,
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
index ccb3c719fc4d..ac94dba72c18 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
@@ -32,11 +32,6 @@
 #include "inc/hw/link_encoder.h"
 #include "core_status.h"
 
-enum vline_select {
-	VLINE0,
-	VLINE1
-};
-
 struct pipe_ctx;
 struct dc_state;
 struct dc_stream_status;
@@ -116,8 +111,7 @@ struct hw_sequencer_funcs {
 			int group_index, int group_size,
 			struct pipe_ctx *grouped_pipes[]);
 	void (*setup_periodic_interrupt)(struct dc *dc,
-			struct pipe_ctx *pipe_ctx,
-			enum vline_select vline);
+			struct pipe_ctx *pipe_ctx);
 	void (*set_drr)(struct pipe_ctx **pipe_ctx, int num_pipes,
 			struct dc_crtc_timing_adjust adjust);
 	void (*set_static_screen_control)(struct pipe_ctx **pipe_ctx,
-- 
2.35.1

[PATCH AUTOSEL 6.0 42/44] drm/amd/display: polling vid stream status in hpo dp blank

[Sasha Levin]

From: Wenjing Liu <wenjing.liu@amd.com>

[ Upstream commit e32df0c7ecead95d70ca89f39b1b2b02a59ff691 ]

[why]
vid stream control is double bufferred, if we don't wait for video
stream enable set to 0, we may get temporary image corruption
showing on the stream when setting PIXEL_TO_SYMBOL_FIFO_ENABLE to 0.

Reviewed-by: Ariel Bernstein <Eric.Bernstein@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c  | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c
index 23621ff08c90..52fb2bf3d578 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c
@@ -150,9 +150,9 @@ static void dcn31_hpo_dp_stream_enc_dp_blank(
 	 * 10us*5000=50ms. This covers 41.7ms of minimum 24 Hz mode +
 	 * a little more because we may not trust delay accuracy.
 	 */
-	//REG_WAIT(DP_SYM32_ENC_VID_STREAM_CONTROL,
-	//		VID_STREAM_STATUS, 0,
-	//		10, 5000);
+	REG_WAIT(DP_SYM32_ENC_VID_STREAM_CONTROL,
+			VID_STREAM_STATUS, 0,
+			10, 5000);
 
 	/* Disable SDP tranmission */
 	REG_UPDATE(DP_SYM32_ENC_SDP_CONTROL,
-- 
2.35.1

[PATCH AUTOSEL 6.0 42/44] drm/amd/display: polling vid stream status in hpo dp blank

[Sasha Levin]

From: Wenjing Liu <wenjing.liu@amd.com>

[ Upstream commit e32df0c7ecead95d70ca89f39b1b2b02a59ff691 ]

[why]
vid stream control is double bufferred, if we don't wait for video
stream enable set to 0, we may get temporary image corruption
showing on the stream when setting PIXEL_TO_SYMBOL_FIFO_ENABLE to 0.

Reviewed-by: Ariel Bernstein <Eric.Bernstein@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c  | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c
index 23621ff08c90..52fb2bf3d578 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c
@@ -150,9 +150,9 @@ static void dcn31_hpo_dp_stream_enc_dp_blank(
 	 * 10us*5000=50ms. This covers 41.7ms of minimum 24 Hz mode +
 	 * a little more because we may not trust delay accuracy.
 	 */
-	//REG_WAIT(DP_SYM32_ENC_VID_STREAM_CONTROL,
-	//		VID_STREAM_STATUS, 0,
-	//		10, 5000);
+	REG_WAIT(DP_SYM32_ENC_VID_STREAM_CONTROL,
+			VID_STREAM_STATUS, 0,
+			10, 5000);
 
 	/* Disable SDP tranmission */
 	REG_UPDATE(DP_SYM32_ENC_SDP_CONTROL,
-- 
2.35.1

[PATCH AUTOSEL 6.0 42/44] drm/amd/display: polling vid stream status in hpo dp blank

[Sasha Levin]

From: Wenjing Liu <wenjing.liu@amd.com>

[ Upstream commit e32df0c7ecead95d70ca89f39b1b2b02a59ff691 ]

[why]
vid stream control is double bufferred, if we don't wait for video
stream enable set to 0, we may get temporary image corruption
showing on the stream when setting PIXEL_TO_SYMBOL_FIFO_ENABLE to 0.

Reviewed-by: Ariel Bernstein <Eric.Bernstein@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c  | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c
index 23621ff08c90..52fb2bf3d578 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c
@@ -150,9 +150,9 @@ static void dcn31_hpo_dp_stream_enc_dp_blank(
 	 * 10us*5000=50ms. This covers 41.7ms of minimum 24 Hz mode +
 	 * a little more because we may not trust delay accuracy.
 	 */
-	//REG_WAIT(DP_SYM32_ENC_VID_STREAM_CONTROL,
-	//		VID_STREAM_STATUS, 0,
-	//		10, 5000);
+	REG_WAIT(DP_SYM32_ENC_VID_STREAM_CONTROL,
+			VID_STREAM_STATUS, 0,
+			10, 5000);
 
 	/* Disable SDP tranmission */
 	REG_UPDATE(DP_SYM32_ENC_SDP_CONTROL,
-- 
2.35.1

[PATCH AUTOSEL 6.0 43/44] drm/amd/display: fix array-bounds error in dc_stream_remove_writeback()

[Sasha Levin]

From: Hamza Mahfooz <hamza.mahfooz@amd.com>

[ Upstream commit 5d8c3e836fc224dfe633e41f7f2856753b39a905 ]

Address the following error:
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c: In function ‘dc_stream_remove_writeback’:
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c:527:55: error: array subscript [0, 0] is outside array bounds of ‘struct dc_writeback_info[1]’ [-Werror=array-bounds]
  527 |                                 stream->writeback_info[j] = stream->writeback_info[i];
      |                                 ~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from ./drivers/gpu/drm/amd/amdgpu/../display/dc/dc.h:1269,
                 from ./drivers/gpu/drm/amd/amdgpu/../display/dc/inc/core_types.h:29,
                 from ./drivers/gpu/drm/amd/amdgpu/../display/dc/basics/dc_common.h:29,
                 from drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c:27:
./drivers/gpu/drm/amd/amdgpu/../display/dc/dc_stream.h:241:34: note: while referencing ‘writeback_info’
  241 |         struct dc_writeback_info writeback_info[MAX_DWB_PIPES];
      |

Currently, we aren't checking to see if j remains within
writeback_info[]'s bounds. So, add a check to make sure that we aren't
overflowing the buffer.

Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/core/dc_stream.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
index 0c85ab5933b4..f0a8bd924f43 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
@@ -519,7 +519,7 @@ bool dc_stream_remove_writeback(struct dc *dc,
 	}
 
 	/* remove writeback info for disabled writeback pipes from stream */
-	for (i = 0, j = 0; i < stream->num_wb_info; i++) {
+	for (i = 0, j = 0; i < stream->num_wb_info && j < MAX_DWB_PIPES; i++) {
 		if (stream->writeback_info[i].wb_enabled) {
 			if (i != j)
 				/* trim the array */
-- 
2.35.1

[PATCH AUTOSEL 6.0 43/44] drm/amd/display: fix array-bounds error in dc_stream_remove_writeback()

[Sasha Levin]

From: Hamza Mahfooz <hamza.mahfooz@amd.com>

[ Upstream commit 5d8c3e836fc224dfe633e41f7f2856753b39a905 ]

Address the following error:
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c: In function ‘dc_stream_remove_writeback’:
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c:527:55: error: array subscript [0, 0] is outside array bounds of ‘struct dc_writeback_info[1]’ [-Werror=array-bounds]
  527 |                                 stream->writeback_info[j] = stream->writeback_info[i];
      |                                 ~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from ./drivers/gpu/drm/amd/amdgpu/../display/dc/dc.h:1269,
                 from ./drivers/gpu/drm/amd/amdgpu/../display/dc/inc/core_types.h:29,
                 from ./drivers/gpu/drm/amd/amdgpu/../display/dc/basics/dc_common.h:29,
                 from drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c:27:
./drivers/gpu/drm/amd/amdgpu/../display/dc/dc_stream.h:241:34: note: while referencing ‘writeback_info’
  241 |         struct dc_writeback_info writeback_info[MAX_DWB_PIPES];
      |

Currently, we aren't checking to see if j remains within
writeback_info[]'s bounds. So, add a check to make sure that we aren't
overflowing the buffer.

Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/core/dc_stream.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
index 0c85ab5933b4..f0a8bd924f43 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
@@ -519,7 +519,7 @@ bool dc_stream_remove_writeback(struct dc *dc,
 	}
 
 	/* remove writeback info for disabled writeback pipes from stream */
-	for (i = 0, j = 0; i < stream->num_wb_info; i++) {
+	for (i = 0, j = 0; i < stream->num_wb_info && j < MAX_DWB_PIPES; i++) {
 		if (stream->writeback_info[i].wb_enabled) {
 			if (i != j)
 				/* trim the array */
-- 
2.35.1

[PATCH AUTOSEL 6.0 43/44] drm/amd/display: fix array-bounds error in dc_stream_remove_writeback()

[Sasha Levin]

From: Hamza Mahfooz <hamza.mahfooz@amd.com>

[ Upstream commit 5d8c3e836fc224dfe633e41f7f2856753b39a905 ]

Address the following error:
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c: In function ‘dc_stream_remove_writeback’:
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c:527:55: error: array subscript [0, 0] is outside array bounds of ‘struct dc_writeback_info[1]’ [-Werror=array-bounds]
  527 |                                 stream->writeback_info[j] = stream->writeback_info[i];
      |                                 ~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from ./drivers/gpu/drm/amd/amdgpu/../display/dc/dc.h:1269,
                 from ./drivers/gpu/drm/amd/amdgpu/../display/dc/inc/core_types.h:29,
                 from ./drivers/gpu/drm/amd/amdgpu/../display/dc/basics/dc_common.h:29,
                 from drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c:27:
./drivers/gpu/drm/amd/amdgpu/../display/dc/dc_stream.h:241:34: note: while referencing ‘writeback_info’
  241 |         struct dc_writeback_info writeback_info[MAX_DWB_PIPES];
      |

Currently, we aren't checking to see if j remains within
writeback_info[]'s bounds. So, add a check to make sure that we aren't
overflowing the buffer.

Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/core/dc_stream.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
index 0c85ab5933b4..f0a8bd924f43 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
@@ -519,7 +519,7 @@ bool dc_stream_remove_writeback(struct dc *dc,
 	}
 
 	/* remove writeback info for disabled writeback pipes from stream */
-	for (i = 0, j = 0; i < stream->num_wb_info; i++) {
+	for (i = 0, j = 0; i < stream->num_wb_info && j < MAX_DWB_PIPES; i++) {
 		if (stream->writeback_info[i].wb_enabled) {
 			if (i != j)
 				/* trim the array */
-- 
2.35.1

[PATCH AUTOSEL 6.0 44/44] drm/amdkfd: Fix UBSAN shift-out-of-bounds warning

[Sasha Levin]

From: Felix Kuehling <Felix.Kuehling@amd.com>

[ Upstream commit b292cafe2dd02d96a07147e4b160927e8399d5cc ]

This was fixed in initialize_cpsch before, but not in initialize_nocpsch.
Factor sdma bitmap initialization into a helper function to apply the
correct implementation in both cases without duplicating it.

v2: Added a range check

Reported-by: Ellis Michael <ellis@ellismichael.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Graham Sider <Graham.Sider@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../drm/amd/amdkfd/kfd_device_queue_manager.c | 45 +++++++++----------
 1 file changed, 21 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index 007a3db69df1..ecb4c3abc629 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -1242,6 +1242,24 @@ static void init_interrupts(struct device_queue_manager *dqm)
 			dqm->dev->kfd2kgd->init_interrupts(dqm->dev->adev, i);
 }
 
+static void init_sdma_bitmaps(struct device_queue_manager *dqm)
+{
+	unsigned int num_sdma_queues =
+		min_t(unsigned int, sizeof(dqm->sdma_bitmap)*8,
+		      get_num_sdma_queues(dqm));
+	unsigned int num_xgmi_sdma_queues =
+		min_t(unsigned int, sizeof(dqm->xgmi_sdma_bitmap)*8,
+		      get_num_xgmi_sdma_queues(dqm));
+
+	if (num_sdma_queues)
+		dqm->sdma_bitmap = GENMASK_ULL(num_sdma_queues-1, 0);
+	if (num_xgmi_sdma_queues)
+		dqm->xgmi_sdma_bitmap = GENMASK_ULL(num_xgmi_sdma_queues-1, 0);
+
+	dqm->sdma_bitmap &= ~get_reserved_sdma_queues_bitmap(dqm);
+	pr_info("sdma_bitmap: %llx\n", dqm->sdma_bitmap);
+}
+
 static int initialize_nocpsch(struct device_queue_manager *dqm)
 {
 	int pipe, queue;
@@ -1270,11 +1288,7 @@ static int initialize_nocpsch(struct device_queue_manager *dqm)
 
 	memset(dqm->vmid_pasid, 0, sizeof(dqm->vmid_pasid));
 
-	dqm->sdma_bitmap = ~0ULL >> (64 - get_num_sdma_queues(dqm));
-	dqm->sdma_bitmap &= ~(get_reserved_sdma_queues_bitmap(dqm));
-	pr_info("sdma_bitmap: %llx\n", dqm->sdma_bitmap);
-
-	dqm->xgmi_sdma_bitmap = ~0ULL >> (64 - get_num_xgmi_sdma_queues(dqm));
+	init_sdma_bitmaps(dqm);
 
 	return 0;
 }
@@ -1452,9 +1466,6 @@ static int set_sched_resources(struct device_queue_manager *dqm)
 
 static int initialize_cpsch(struct device_queue_manager *dqm)
 {
-	uint64_t num_sdma_queues;
-	uint64_t num_xgmi_sdma_queues;
-
 	pr_debug("num of pipes: %d\n", get_pipes_per_mec(dqm));
 
 	mutex_init(&dqm->lock_hidden);
@@ -1463,24 +1474,10 @@ static int initialize_cpsch(struct device_queue_manager *dqm)
 	dqm->active_cp_queue_count = 0;
 	dqm->gws_queue_count = 0;
 	dqm->active_runlist = false;
-
-	num_sdma_queues = get_num_sdma_queues(dqm);
-	if (num_sdma_queues >= BITS_PER_TYPE(dqm->sdma_bitmap))
-		dqm->sdma_bitmap = ULLONG_MAX;
-	else
-		dqm->sdma_bitmap = (BIT_ULL(num_sdma_queues) - 1);
-
-	dqm->sdma_bitmap &= ~(get_reserved_sdma_queues_bitmap(dqm));
-	pr_info("sdma_bitmap: %llx\n", dqm->sdma_bitmap);
-
-	num_xgmi_sdma_queues = get_num_xgmi_sdma_queues(dqm);
-	if (num_xgmi_sdma_queues >= BITS_PER_TYPE(dqm->xgmi_sdma_bitmap))
-		dqm->xgmi_sdma_bitmap = ULLONG_MAX;
-	else
-		dqm->xgmi_sdma_bitmap = (BIT_ULL(num_xgmi_sdma_queues) - 1);
-
 	INIT_WORK(&dqm->hw_exception_work, kfd_process_hw_exception);
 
+	init_sdma_bitmaps(dqm);
+
 	return 0;
 }
 
-- 
2.35.1

[PATCH AUTOSEL 6.0 44/44] drm/amdkfd: Fix UBSAN shift-out-of-bounds warning

[Sasha Levin]

From: Felix Kuehling <Felix.Kuehling@amd.com>

[ Upstream commit b292cafe2dd02d96a07147e4b160927e8399d5cc ]

This was fixed in initialize_cpsch before, but not in initialize_nocpsch.
Factor sdma bitmap initialization into a helper function to apply the
correct implementation in both cases without duplicating it.

v2: Added a range check

Reported-by: Ellis Michael <ellis@ellismichael.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Graham Sider <Graham.Sider@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../drm/amd/amdkfd/kfd_device_queue_manager.c | 45 +++++++++----------
 1 file changed, 21 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index 007a3db69df1..ecb4c3abc629 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -1242,6 +1242,24 @@ static void init_interrupts(struct device_queue_manager *dqm)
 			dqm->dev->kfd2kgd->init_interrupts(dqm->dev->adev, i);
 }
 
+static void init_sdma_bitmaps(struct device_queue_manager *dqm)
+{
+	unsigned int num_sdma_queues =
+		min_t(unsigned int, sizeof(dqm->sdma_bitmap)*8,
+		      get_num_sdma_queues(dqm));
+	unsigned int num_xgmi_sdma_queues =
+		min_t(unsigned int, sizeof(dqm->xgmi_sdma_bitmap)*8,
+		      get_num_xgmi_sdma_queues(dqm));
+
+	if (num_sdma_queues)
+		dqm->sdma_bitmap = GENMASK_ULL(num_sdma_queues-1, 0);
+	if (num_xgmi_sdma_queues)
+		dqm->xgmi_sdma_bitmap = GENMASK_ULL(num_xgmi_sdma_queues-1, 0);
+
+	dqm->sdma_bitmap &= ~get_reserved_sdma_queues_bitmap(dqm);
+	pr_info("sdma_bitmap: %llx\n", dqm->sdma_bitmap);
+}
+
 static int initialize_nocpsch(struct device_queue_manager *dqm)
 {
 	int pipe, queue;
@@ -1270,11 +1288,7 @@ static int initialize_nocpsch(struct device_queue_manager *dqm)
 
 	memset(dqm->vmid_pasid, 0, sizeof(dqm->vmid_pasid));
 
-	dqm->sdma_bitmap = ~0ULL >> (64 - get_num_sdma_queues(dqm));
-	dqm->sdma_bitmap &= ~(get_reserved_sdma_queues_bitmap(dqm));
-	pr_info("sdma_bitmap: %llx\n", dqm->sdma_bitmap);
-
-	dqm->xgmi_sdma_bitmap = ~0ULL >> (64 - get_num_xgmi_sdma_queues(dqm));
+	init_sdma_bitmaps(dqm);
 
 	return 0;
 }
@@ -1452,9 +1466,6 @@ static int set_sched_resources(struct device_queue_manager *dqm)
 
 static int initialize_cpsch(struct device_queue_manager *dqm)
 {
-	uint64_t num_sdma_queues;
-	uint64_t num_xgmi_sdma_queues;
-
 	pr_debug("num of pipes: %d\n", get_pipes_per_mec(dqm));
 
 	mutex_init(&dqm->lock_hidden);
@@ -1463,24 +1474,10 @@ static int initialize_cpsch(struct device_queue_manager *dqm)
 	dqm->active_cp_queue_count = 0;
 	dqm->gws_queue_count = 0;
 	dqm->active_runlist = false;
-
-	num_sdma_queues = get_num_sdma_queues(dqm);
-	if (num_sdma_queues >= BITS_PER_TYPE(dqm->sdma_bitmap))
-		dqm->sdma_bitmap = ULLONG_MAX;
-	else
-		dqm->sdma_bitmap = (BIT_ULL(num_sdma_queues) - 1);
-
-	dqm->sdma_bitmap &= ~(get_reserved_sdma_queues_bitmap(dqm));
-	pr_info("sdma_bitmap: %llx\n", dqm->sdma_bitmap);
-
-	num_xgmi_sdma_queues = get_num_xgmi_sdma_queues(dqm);
-	if (num_xgmi_sdma_queues >= BITS_PER_TYPE(dqm->xgmi_sdma_bitmap))
-		dqm->xgmi_sdma_bitmap = ULLONG_MAX;
-	else
-		dqm->xgmi_sdma_bitmap = (BIT_ULL(num_xgmi_sdma_queues) - 1);
-
 	INIT_WORK(&dqm->hw_exception_work, kfd_process_hw_exception);
 
+	init_sdma_bitmaps(dqm);
+
 	return 0;
 }
 
-- 
2.35.1

[PATCH AUTOSEL 6.0 44/44] drm/amdkfd: Fix UBSAN shift-out-of-bounds warning

[Sasha Levin]

From: Felix Kuehling <Felix.Kuehling@amd.com>

[ Upstream commit b292cafe2dd02d96a07147e4b160927e8399d5cc ]

This was fixed in initialize_cpsch before, but not in initialize_nocpsch.
Factor sdma bitmap initialization into a helper function to apply the
correct implementation in both cases without duplicating it.

v2: Added a range check

Reported-by: Ellis Michael <ellis@ellismichael.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Graham Sider <Graham.Sider@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../drm/amd/amdkfd/kfd_device_queue_manager.c | 45 +++++++++----------
 1 file changed, 21 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index 007a3db69df1..ecb4c3abc629 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -1242,6 +1242,24 @@ static void init_interrupts(struct device_queue_manager *dqm)
 			dqm->dev->kfd2kgd->init_interrupts(dqm->dev->adev, i);
 }
 
+static void init_sdma_bitmaps(struct device_queue_manager *dqm)
+{
+	unsigned int num_sdma_queues =
+		min_t(unsigned int, sizeof(dqm->sdma_bitmap)*8,
+		      get_num_sdma_queues(dqm));
+	unsigned int num_xgmi_sdma_queues =
+		min_t(unsigned int, sizeof(dqm->xgmi_sdma_bitmap)*8,
+		      get_num_xgmi_sdma_queues(dqm));
+
+	if (num_sdma_queues)
+		dqm->sdma_bitmap = GENMASK_ULL(num_sdma_queues-1, 0);
+	if (num_xgmi_sdma_queues)
+		dqm->xgmi_sdma_bitmap = GENMASK_ULL(num_xgmi_sdma_queues-1, 0);
+
+	dqm->sdma_bitmap &= ~get_reserved_sdma_queues_bitmap(dqm);
+	pr_info("sdma_bitmap: %llx\n", dqm->sdma_bitmap);
+}
+
 static int initialize_nocpsch(struct device_queue_manager *dqm)
 {
 	int pipe, queue;
@@ -1270,11 +1288,7 @@ static int initialize_nocpsch(struct device_queue_manager *dqm)
 
 	memset(dqm->vmid_pasid, 0, sizeof(dqm->vmid_pasid));
 
-	dqm->sdma_bitmap = ~0ULL >> (64 - get_num_sdma_queues(dqm));
-	dqm->sdma_bitmap &= ~(get_reserved_sdma_queues_bitmap(dqm));
-	pr_info("sdma_bitmap: %llx\n", dqm->sdma_bitmap);
-
-	dqm->xgmi_sdma_bitmap = ~0ULL >> (64 - get_num_xgmi_sdma_queues(dqm));
+	init_sdma_bitmaps(dqm);
 
 	return 0;
 }
@@ -1452,9 +1466,6 @@ static int set_sched_resources(struct device_queue_manager *dqm)
 
 static int initialize_cpsch(struct device_queue_manager *dqm)
 {
-	uint64_t num_sdma_queues;
-	uint64_t num_xgmi_sdma_queues;
-
 	pr_debug("num of pipes: %d\n", get_pipes_per_mec(dqm));
 
 	mutex_init(&dqm->lock_hidden);
@@ -1463,24 +1474,10 @@ static int initialize_cpsch(struct device_queue_manager *dqm)
 	dqm->active_cp_queue_count = 0;
 	dqm->gws_queue_count = 0;
 	dqm->active_runlist = false;
-
-	num_sdma_queues = get_num_sdma_queues(dqm);
-	if (num_sdma_queues >= BITS_PER_TYPE(dqm->sdma_bitmap))
-		dqm->sdma_bitmap = ULLONG_MAX;
-	else
-		dqm->sdma_bitmap = (BIT_ULL(num_sdma_queues) - 1);
-
-	dqm->sdma_bitmap &= ~(get_reserved_sdma_queues_bitmap(dqm));
-	pr_info("sdma_bitmap: %llx\n", dqm->sdma_bitmap);
-
-	num_xgmi_sdma_queues = get_num_xgmi_sdma_queues(dqm);
-	if (num_xgmi_sdma_queues >= BITS_PER_TYPE(dqm->xgmi_sdma_bitmap))
-		dqm->xgmi_sdma_bitmap = ULLONG_MAX;
-	else
-		dqm->xgmi_sdma_bitmap = (BIT_ULL(num_xgmi_sdma_queues) - 1);
-
 	INIT_WORK(&dqm->hw_exception_work, kfd_process_hw_exception);
 
+	init_sdma_bitmaps(dqm);
+
 	return 0;
 }
 
-- 
2.35.1

Re: [PATCH AUTOSEL 6.0 19/44] ACPI: video: Change disable_backlight_sysfs_if quirks to acpi_backlight=native

[Hans de Goede]

Hi,

On 10/10/22 01:49, Sasha Levin wrote:
> From: Hans de Goede <hdegoede@redhat.com>
> 
> [ Upstream commit c5b94f5b7819348c59f9949b2b75c341a114cdd4 ]
> 
> Some Toshibas have a broken acpi-video interface for brightness control
> and need a special firmware call on resume to turn the panel back on.
> So far these have been using the disable_backlight_sysfs_if workaround
> to deal with this.
> 
> The recent x86/acpi backlight refactoring has broken this workaround:
> 1. This workaround relies on acpi_video_get_backlight_type() returning
>    acpi_video so that the acpi_video code actually runs; and
> 2. this relies on the actual native GPU driver to offer the sysfs
>    backlight interface to userspace.
> 
> After the refactor this breaks since the native driver will no
> longer register its backlight-device if acpi_video_get_backlight_type()
> does not return native and making it return native breaks 1.
> 
> Keeping the acpi_video backlight handling on resume active, while not
> using it to set the brightness, is necessary because it does a _BCM
> call on resume which is necessary to turn the panel back on on resume.
> 
> Looking at the DSDT shows that this _BCM call results in a Toshiba
> HCI_SET HCI_LCD_BRIGHTNESS call, which turns the panel back on.
> 
> This kind of special vendor specific handling really belongs in
> the vendor specific acpi driver. An earlier patch in this series
> modifies toshiba_acpi to make the necessary HCI_SET call on resume
> on affected models.
> 
> With toshiba_acpi taking care of the HCI_SET call on resume,
> the acpi_video code no longer needs to call _BCM on resume.
> 
> So instead of using the (now broken) disable_backlight_sysfs_if
> workaround, simply setting acpi_backlight=native to disable
> the broken apci-video interface is sufficient fix things now.
> 
> After this there are no more users of the disable_backlight_sysfs_if
> flag and as discussed above the flag also no longer works as intended,
> so remove the disable_backlight_sysfs_if flag entirely.
> 
> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> Tested-by: Arvid Norlander <lkml@vorpal.se>
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
> Signed-off-by: Sasha Levin <sashal@kernel.org>

This patch goes hand in hand with:

commit 3cb1f40dfdc3 ("drivers/platform: toshiba_acpi: Call HCI_PANEL_POWER_ON on resume on some models")

and without that commit also being present it will cause a regression on
the quirkes Toshiba models.

This really is part of the big x86/ACPI backlight handling refactor which 
has landed in 6.1 and as such is not intended for older kernels, please
drop this from the stable series.

Regards,

Hans


p.s.

I'll also copy and paste this reply to the other stable series kernels where this has
been cherry-picked.





> ---
>  drivers/acpi/acpi_video.c   | 48 -------------------------------------
>  drivers/acpi/video_detect.c | 35 +++++++++++++++++++++++++++
>  2 files changed, 35 insertions(+), 48 deletions(-)
> 
> diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c
> index 5cbe2196176d..8da63f146fe1 100644
> --- a/drivers/acpi/acpi_video.c
> +++ b/drivers/acpi/acpi_video.c
> @@ -47,9 +47,6 @@ module_param(brightness_switch_enabled, bool, 0644);
>  static bool allow_duplicates;
>  module_param(allow_duplicates, bool, 0644);
>  
> -static int disable_backlight_sysfs_if = -1;
> -module_param(disable_backlight_sysfs_if, int, 0444);
> -
>  #define REPORT_OUTPUT_KEY_EVENTS		0x01
>  #define REPORT_BRIGHTNESS_KEY_EVENTS		0x02
>  static int report_key_events = -1;
> @@ -382,14 +379,6 @@ static int video_set_bqc_offset(const struct dmi_system_id *d)
>  	return 0;
>  }
>  
> -static int video_disable_backlight_sysfs_if(
> -	const struct dmi_system_id *d)
> -{
> -	if (disable_backlight_sysfs_if == -1)
> -		disable_backlight_sysfs_if = 1;
> -	return 0;
> -}
> -
>  static int video_set_device_id_scheme(const struct dmi_system_id *d)
>  {
>  	device_id_scheme = true;
> @@ -462,40 +451,6 @@ static const struct dmi_system_id video_dmi_table[] = {
>  		},
>  	},
>  
> -	/*
> -	 * Some machines have a broken acpi-video interface for brightness
> -	 * control, but still need an acpi_video_device_lcd_set_level() call
> -	 * on resume to turn the backlight power on.  We Enable backlight
> -	 * control on these systems, but do not register a backlight sysfs
> -	 * as brightness control does not work.
> -	 */
> -	{
> -	 /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
> -	 .callback = video_disable_backlight_sysfs_if,
> -	 .ident = "Toshiba Portege R700",
> -	 .matches = {
> -		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
> -		DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"),
> -		},
> -	},
> -	{
> -	 /* https://bugs.freedesktop.org/show_bug.cgi?id=82634 */
> -	 .callback = video_disable_backlight_sysfs_if,
> -	 .ident = "Toshiba Portege R830",
> -	 .matches = {
> -		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
> -		DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R830"),
> -		},
> -	},
> -	{
> -	 /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
> -	 .callback = video_disable_backlight_sysfs_if,
> -	 .ident = "Toshiba Satellite R830",
> -	 .matches = {
> -		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
> -		DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE R830"),
> -		},
> -	},
>  	/*
>  	 * Some machine's _DOD IDs don't have bit 31(Device ID Scheme) set
>  	 * but the IDs actually follow the Device ID Scheme.
> @@ -1758,9 +1713,6 @@ static void acpi_video_dev_register_backlight(struct acpi_video_device *device)
>  	if (result)
>  		return;
>  
> -	if (disable_backlight_sysfs_if > 0)
> -		return;
> -
>  	name = kasprintf(GFP_KERNEL, "acpi_video%d", count);
>  	if (!name)
>  		return;
> diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
> index 5d7f38016a24..c370de174fd3 100644
> --- a/drivers/acpi/video_detect.c
> +++ b/drivers/acpi/video_detect.c
> @@ -514,6 +514,41 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
>  		DMI_MATCH(DMI_BOARD_NAME, "PF5LUXG"),
>  		},
>  	},
> +	/*
> +	 * These Toshibas have a broken acpi-video interface for brightness
> +	 * control. They also have an issue where the panel is off after
> +	 * suspend until a special firmware call is made to turn it back
> +	 * on. This is handled by the toshiba_acpi kernel module, so that
> +	 * module must be enabled for these models to work correctly.
> +	 */
> +	{
> +	 /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
> +	 .callback = video_detect_force_native,
> +	 /* Toshiba Portégé R700 */
> +	 .matches = {
> +		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
> +		DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"),
> +		},
> +	},
> +	{
> +	 /* Portégé: https://bugs.freedesktop.org/show_bug.cgi?id=82634 */
> +	 /* Satellite: https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
> +	 .callback = video_detect_force_native,
> +	 /* Toshiba Satellite/Portégé R830 */
> +	 .matches = {
> +		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
> +		DMI_MATCH(DMI_PRODUCT_NAME, "R830"),
> +		},
> +	},
> +	{
> +	 .callback = video_detect_force_native,
> +	 /* Toshiba Satellite/Portégé Z830 */
> +	 .matches = {
> +		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
> +		DMI_MATCH(DMI_PRODUCT_NAME, "Z830"),
> +		},
> +	},
> +
>  	/*
>  	 * Desktops which falsely report a backlight and which our heuristics
>  	 * for this do not catch.

Re: [PATCH AUTOSEL 6.0 39/44] mmc: sdhci-msm: add compatible string check for sdm670

[Richard Acayan]

> From: Richard Acayan <mailingradian@gmail.com>
> 
> [ Upstream commit 4de95950d970c71a9e82a24573bb7a44fd95baa1 ]
> 
> The Snapdragon 670 has the same quirk as Snapdragon 845 (needing to
> restore the dll config). Add a compatible string check to detect the need
> for this.
> 
> Signed-off-by: Richard Acayan <mailingradian@gmail.com>
> Reviewed-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> Link: https://lore.kernel.org/r/20220923014322.33620-3-mailingradian@gmail.com
> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
> Signed-off-by: Sasha Levin <sashal@kernel.org>
> ---
>  drivers/mmc/host/sdhci-msm.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
> index dc2991422a87..3a091a387ecb 100644
> --- a/drivers/mmc/host/sdhci-msm.c
> +++ b/drivers/mmc/host/sdhci-msm.c
> @@ -2441,6 +2441,7 @@ static const struct of_device_id sdhci_msm_dt_match[] = {
>  	 */
>  	{.compatible = "qcom,sdhci-msm-v4", .data = &sdhci_msm_mci_var},
>  	{.compatible = "qcom,sdhci-msm-v5", .data = &sdhci_msm_v5_var},
> +	{.compatible = "qcom,sdm670-sdhci", .data = &sdm845_sdhci_var},

Supporting device trees which are invalid under 6.0 schema? It's not a bug fix,
it's a feature.

Documentation/devicetree/bindings/mmc/sdhci-msm.yaml:17-49, at tag v6.0:

    properties:
      compatible:
        oneOf:
          - enum:
              - qcom,sdhci-msm-v4
            deprecated: true
          - items:
              - enum:
                  - qcom,apq8084-sdhci
                  - qcom,msm8226-sdhci
                  - qcom,msm8953-sdhci
                  - qcom,msm8974-sdhci
                  - qcom,msm8916-sdhci
                  - qcom,msm8992-sdhci
                  - qcom,msm8994-sdhci
                  - qcom,msm8996-sdhci
                  - qcom,msm8998-sdhci
              - const: qcom,sdhci-msm-v4 # for sdcc versions less than 5.0
          - items:
              - enum:
                  - qcom,qcs404-sdhci
                  - qcom,sc7180-sdhci
                  - qcom,sc7280-sdhci
                  - qcom,sdm630-sdhci
                  - qcom,sdm845-sdhci
                  - qcom,sdx55-sdhci
                  - qcom,sdx65-sdhci
                  - qcom,sm6125-sdhci
                  - qcom,sm6350-sdhci
                  - qcom,sm8150-sdhci
                  - qcom,sm8250-sdhci
                  - qcom,sm8450-sdhci
              - const: qcom,sdhci-msm-v5 # for sdcc version 5.0

I'm new to this, so I apologize if I don't understand stable kernel development.

>  	{.compatible = "qcom,sdm845-sdhci", .data = &sdm845_sdhci_var},
>  	{.compatible = "qcom,sc7180-sdhci", .data = &sdm845_sdhci_var},
>  	{},
> -- 
> 2.35.1

Re: [PATCH AUTOSEL 6.0 39/44] mmc: sdhci-msm: add compatible string check for sdm670

[Sasha Levin]

On Mon, Oct 10, 2022 at 07:43:53PM -0400, Richard Acayan wrote:
>> From: Richard Acayan <mailingradian@gmail.com>
>>
>> [ Upstream commit 4de95950d970c71a9e82a24573bb7a44fd95baa1 ]
>>
>> The Snapdragon 670 has the same quirk as Snapdragon 845 (needing to
>> restore the dll config). Add a compatible string check to detect the need
>> for this.
>>
>> Signed-off-by: Richard Acayan <mailingradian@gmail.com>
>> Reviewed-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
>> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>> Link: https://lore.kernel.org/r/20220923014322.33620-3-mailingradian@gmail.com
>> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
>> Signed-off-by: Sasha Levin <sashal@kernel.org>
>> ---
>>  drivers/mmc/host/sdhci-msm.c | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
>> index dc2991422a87..3a091a387ecb 100644
>> --- a/drivers/mmc/host/sdhci-msm.c
>> +++ b/drivers/mmc/host/sdhci-msm.c
>> @@ -2441,6 +2441,7 @@ static const struct of_device_id sdhci_msm_dt_match[] = {
>>  	 */
>>  	{.compatible = "qcom,sdhci-msm-v4", .data = &sdhci_msm_mci_var},
>>  	{.compatible = "qcom,sdhci-msm-v5", .data = &sdhci_msm_v5_var},
>> +	{.compatible = "qcom,sdm670-sdhci", .data = &sdm845_sdhci_var},
>
>Supporting device trees which are invalid under 6.0 schema? It's not a bug fix,
>it's a feature.

Does this not enable hardware to work properly? We take quirks/device
enablement into stable tree as well.

-- 
Thanks,
Sasha

Re: [PATCH AUTOSEL 6.0 16/44] drm: hide unregistered connectors from GETCONNECTOR IOCTL

[Simon Ser]

Jonas has reported that this breaks Mutter. Sasha, can we remove this
from the stable queue?

Re: [PATCH AUTOSEL 6.0 16/44] drm: hide unregistered connectors from GETCONNECTOR IOCTL

[Simon Ser]

Jonas has reported that this breaks Mutter. Sasha, can we remove this
from the stable queue?

Re: [PATCH AUTOSEL 6.0 39/44] mmc: sdhci-msm: add compatible string check for sdm670

[Richard Acayan]

> On Mon, Oct 10, 2022 at 07:43:53PM -0400, Richard Acayan wrote:
>>> From: Richard Acayan <mailingradian@gmail.com>
>>>
>>> [ Upstream commit 4de95950d970c71a9e82a24573bb7a44fd95baa1 ]
>>>
>>> The Snapdragon 670 has the same quirk as Snapdragon 845 (needing to
>>> restore the dll config). Add a compatible string check to detect the need
>>> for this.
>>>
>>> Signed-off-by: Richard Acayan <mailingradian@gmail.com>
>>> Reviewed-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
>>> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>>> Link: https://lore.kernel.org/r/20220923014322.33620-3-mailingradian@gmail.com
>>> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
>>> Signed-off-by: Sasha Levin <sashal@kernel.org>
>>> ---
>>>  drivers/mmc/host/sdhci-msm.c | 1 +
>>>  1 file changed, 1 insertion(+)
>>>
>>> diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
>>> index dc2991422a87..3a091a387ecb 100644
>>> --- a/drivers/mmc/host/sdhci-msm.c
>>> +++ b/drivers/mmc/host/sdhci-msm.c
>>> @@ -2441,6 +2441,7 @@ static const struct of_device_id sdhci_msm_dt_match[] = {
>>>  	 */
>>>  	{.compatible = "qcom,sdhci-msm-v4", .data = &sdhci_msm_mci_var},
>>>  	{.compatible = "qcom,sdhci-msm-v5", .data = &sdhci_msm_v5_var},
>>> +	{.compatible = "qcom,sdm670-sdhci", .data = &sdm845_sdhci_var},
>>
>>Supporting device trees which are invalid under 6.0 schema? It's not a bug fix,
>>it's a feature.
> 
> Does this not enable hardware to work properly? We take quirks/device
> enablement into stable tree as well.

It does, given that there are no device tree dependency issues. Thanks for the
clarification.

Re: [PATCH AUTOSEL 6.0 16/44] drm: hide unregistered connectors from GETCONNECTOR IOCTL

[Sasha Levin]

On Thu, Oct 13, 2022 at 07:31:19PM +0000, Simon Ser wrote:
>Jonas has reported that this breaks Mutter. Sasha, can we remove this
>from the stable queue?

Yup, I'll drop it for now. Thanks!

-- 
Thanks,
Sasha

Re: [PATCH AUTOSEL 6.0 16/44] drm: hide unregistered connectors from GETCONNECTOR IOCTL

[Sasha Levin]

On Thu, Oct 13, 2022 at 07:31:19PM +0000, Simon Ser wrote:
>Jonas has reported that this breaks Mutter. Sasha, can we remove this
>from the stable queue?

Yup, I'll drop it for now. Thanks!

-- 
Thanks,
Sasha

Re: [PATCH AUTOSEL 6.0 07/44] ALSA: hda: Fix page fault in snd_hda_codec_shutdown()

[Pierre-Louis Bossart]

On 10/9/22 18:48, Sasha Levin wrote:
> From: Cezary Rojewski <cezary.rojewski@intel.com>
> 
> [ Upstream commit f2bd1c5ae2cb0cf9525c9bffc0038c12dd7e1338 ]

This commit on linux-stable seems to have broken a number of platforms.

6.0.2 worked fine.
6.0.3 does not

reverting this commit solves the problem, see
https://github.com/thesofproject/linux/issues/3960 for details.

Are we missing a prerequisite patch for this commit?


> If early probe of HDAudio bus driver fails e.g.: due to missing
> firmware file, snd_hda_codec_shutdown() ends in manipulating
> uninitialized codec->pcm_list_head causing page fault.
> 
> Initialization of HDAudio codec in ASoC is split in two:
> - snd_hda_codec_device_init()
> - snd_hda_codec_device_new()
> 
> snd_hda_codec_device_init() is called during probe_codecs() by HDAudio
> bus driver while snd_hda_codec_device_new() is called by
> codec-component's ->probe(). The second call will not happen until all
> components required by related sound card are present within the ASoC
> framework. With firmware failing to load during the PCI's deferred
> initialization i.e.: probe_work(), no platform components are ever
> registered. HDAudio codec enumeration is done at that point though, so
> the codec components became registered to ASoC framework, calling
> snd_hda_codec_device_init() in the process.
> 
> Now, during platform reboot snd_hda_codec_shutdown() is called for every
> codec found on the HDAudio bus causing oops if any of them has not
> completed both of their initialization steps. Relocating field
> initialization fixes the issue.
> 
> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
> Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
> Link: https://lore.kernel.org/r/20220816111727.3218543-7-cezary.rojewski@intel.com
> Signed-off-by: Takashi Iwai <tiwai@suse.de>
> Signed-off-by: Sasha Levin <sashal@kernel.org>
> ---
>  sound/pci/hda/hda_codec.c | 41 +++++++++++++++++++--------------------
>  1 file changed, 20 insertions(+), 21 deletions(-)
> 
> diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
> index 384426d7e9dd..4ae8b9574778 100644
> --- a/sound/pci/hda/hda_codec.c
> +++ b/sound/pci/hda/hda_codec.c
> @@ -931,8 +931,28 @@ snd_hda_codec_device_init(struct hda_bus *bus, unsigned int codec_addr,
>  	}
>  
>  	codec->bus = bus;
> +	codec->depop_delay = -1;
> +	codec->fixup_id = HDA_FIXUP_ID_NOT_SET;
> +	codec->core.dev.release = snd_hda_codec_dev_release;
> +	codec->core.exec_verb = codec_exec_verb;
>  	codec->core.type = HDA_DEV_LEGACY;
>  
> +	mutex_init(&codec->spdif_mutex);
> +	mutex_init(&codec->control_mutex);
> +	snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
> +	snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
> +	snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
> +	snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
> +	snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
> +	snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
> +	snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
> +	snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
> +	INIT_LIST_HEAD(&codec->conn_list);
> +	INIT_LIST_HEAD(&codec->pcm_list_head);
> +	INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
> +	refcount_set(&codec->pcm_ref, 1);
> +	init_waitqueue_head(&codec->remove_sleep);
> +
>  	return codec;
>  }
>  EXPORT_SYMBOL_GPL(snd_hda_codec_device_init);
> @@ -985,29 +1005,8 @@ int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
>  	if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
>  		return -EINVAL;
>  
> -	codec->core.dev.release = snd_hda_codec_dev_release;
> -	codec->core.exec_verb = codec_exec_verb;
> -
>  	codec->card = card;
>  	codec->addr = codec_addr;
> -	mutex_init(&codec->spdif_mutex);
> -	mutex_init(&codec->control_mutex);
> -	snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
> -	snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
> -	snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
> -	snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
> -	snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
> -	snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
> -	snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
> -	snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
> -	INIT_LIST_HEAD(&codec->conn_list);
> -	INIT_LIST_HEAD(&codec->pcm_list_head);
> -	refcount_set(&codec->pcm_ref, 1);
> -	init_waitqueue_head(&codec->remove_sleep);
> -
> -	INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
> -	codec->depop_delay = -1;
> -	codec->fixup_id = HDA_FIXUP_ID_NOT_SET;
>  
>  #ifdef CONFIG_PM
>  	codec->power_jiffies = jiffies;

Re: [PATCH AUTOSEL 6.0 07/44] ALSA: hda: Fix page fault in snd_hda_codec_shutdown()

[Pierre-Louis Bossart]

On 10/9/22 18:48, Sasha Levin wrote:
> From: Cezary Rojewski <cezary.rojewski@intel.com>
> 
> [ Upstream commit f2bd1c5ae2cb0cf9525c9bffc0038c12dd7e1338 ]

This commit on linux-stable seems to have broken a number of platforms.

6.0.2 worked fine.
6.0.3 does not

reverting this commit solves the problem, see
https://github.com/thesofproject/linux/issues/3960 for details.

Are we missing a prerequisite patch for this commit?


> If early probe of HDAudio bus driver fails e.g.: due to missing
> firmware file, snd_hda_codec_shutdown() ends in manipulating
> uninitialized codec->pcm_list_head causing page fault.
> 
> Initialization of HDAudio codec in ASoC is split in two:
> - snd_hda_codec_device_init()
> - snd_hda_codec_device_new()
> 
> snd_hda_codec_device_init() is called during probe_codecs() by HDAudio
> bus driver while snd_hda_codec_device_new() is called by
> codec-component's ->probe(). The second call will not happen until all
> components required by related sound card are present within the ASoC
> framework. With firmware failing to load during the PCI's deferred
> initialization i.e.: probe_work(), no platform components are ever
> registered. HDAudio codec enumeration is done at that point though, so
> the codec components became registered to ASoC framework, calling
> snd_hda_codec_device_init() in the process.
> 
> Now, during platform reboot snd_hda_codec_shutdown() is called for every
> codec found on the HDAudio bus causing oops if any of them has not
> completed both of their initialization steps. Relocating field
> initialization fixes the issue.
> 
> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
> Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
> Link: https://lore.kernel.org/r/20220816111727.3218543-7-cezary.rojewski@intel.com
> Signed-off-by: Takashi Iwai <tiwai@suse.de>
> Signed-off-by: Sasha Levin <sashal@kernel.org>
> ---
>  sound/pci/hda/hda_codec.c | 41 +++++++++++++++++++--------------------
>  1 file changed, 20 insertions(+), 21 deletions(-)
> 
> diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
> index 384426d7e9dd..4ae8b9574778 100644
> --- a/sound/pci/hda/hda_codec.c
> +++ b/sound/pci/hda/hda_codec.c
> @@ -931,8 +931,28 @@ snd_hda_codec_device_init(struct hda_bus *bus, unsigned int codec_addr,
>  	}
>  
>  	codec->bus = bus;
> +	codec->depop_delay = -1;
> +	codec->fixup_id = HDA_FIXUP_ID_NOT_SET;
> +	codec->core.dev.release = snd_hda_codec_dev_release;
> +	codec->core.exec_verb = codec_exec_verb;
>  	codec->core.type = HDA_DEV_LEGACY;
>  
> +	mutex_init(&codec->spdif_mutex);
> +	mutex_init(&codec->control_mutex);
> +	snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
> +	snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
> +	snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
> +	snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
> +	snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
> +	snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
> +	snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
> +	snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
> +	INIT_LIST_HEAD(&codec->conn_list);
> +	INIT_LIST_HEAD(&codec->pcm_list_head);
> +	INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
> +	refcount_set(&codec->pcm_ref, 1);
> +	init_waitqueue_head(&codec->remove_sleep);
> +
>  	return codec;
>  }
>  EXPORT_SYMBOL_GPL(snd_hda_codec_device_init);
> @@ -985,29 +1005,8 @@ int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
>  	if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
>  		return -EINVAL;
>  
> -	codec->core.dev.release = snd_hda_codec_dev_release;
> -	codec->core.exec_verb = codec_exec_verb;
> -
>  	codec->card = card;
>  	codec->addr = codec_addr;
> -	mutex_init(&codec->spdif_mutex);
> -	mutex_init(&codec->control_mutex);
> -	snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
> -	snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
> -	snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
> -	snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
> -	snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
> -	snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
> -	snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
> -	snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
> -	INIT_LIST_HEAD(&codec->conn_list);
> -	INIT_LIST_HEAD(&codec->pcm_list_head);
> -	refcount_set(&codec->pcm_ref, 1);
> -	init_waitqueue_head(&codec->remove_sleep);
> -
> -	INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
> -	codec->depop_delay = -1;
> -	codec->fixup_id = HDA_FIXUP_ID_NOT_SET;
>  
>  #ifdef CONFIG_PM
>  	codec->power_jiffies = jiffies;

Re: [PATCH AUTOSEL 6.0 07/44] ALSA: hda: Fix page fault in snd_hda_codec_shutdown()

[Greg KH]

On Tue, Oct 25, 2022 at 09:27:32AM -0500, Pierre-Louis Bossart wrote:
> 
> 
> On 10/9/22 18:48, Sasha Levin wrote:
> > From: Cezary Rojewski <cezary.rojewski@intel.com>
> > 
> > [ Upstream commit f2bd1c5ae2cb0cf9525c9bffc0038c12dd7e1338 ]
> 
> This commit on linux-stable seems to have broken a number of platforms.
> 
> 6.0.2 worked fine.
> 6.0.3 does not
> 
> reverting this commit solves the problem, see
> https://github.com/thesofproject/linux/issues/3960 for details.
> 
> Are we missing a prerequisite patch for this commit?

Please see https://lore.kernel.org/r/20221024143931.15722-1-tiwai@suse.de

Does that solve it for you?

thanks,

greg k-h

Re: [PATCH AUTOSEL 6.0 07/44] ALSA: hda: Fix page fault in snd_hda_codec_shutdown()

[Greg KH]

On Tue, Oct 25, 2022 at 09:27:32AM -0500, Pierre-Louis Bossart wrote:
> 
> 
> On 10/9/22 18:48, Sasha Levin wrote:
> > From: Cezary Rojewski <cezary.rojewski@intel.com>
> > 
> > [ Upstream commit f2bd1c5ae2cb0cf9525c9bffc0038c12dd7e1338 ]
> 
> This commit on linux-stable seems to have broken a number of platforms.
> 
> 6.0.2 worked fine.
> 6.0.3 does not
> 
> reverting this commit solves the problem, see
> https://github.com/thesofproject/linux/issues/3960 for details.
> 
> Are we missing a prerequisite patch for this commit?

Please see https://lore.kernel.org/r/20221024143931.15722-1-tiwai@suse.de

Does that solve it for you?

thanks,

greg k-h

Re: [PATCH AUTOSEL 6.0 07/44] ALSA: hda: Fix page fault in snd_hda_codec_shutdown()

[Pierre-Louis Bossart]

On 10/25/22 09:50, Greg KH wrote:
> On Tue, Oct 25, 2022 at 09:27:32AM -0500, Pierre-Louis Bossart wrote:
>>
>>
>> On 10/9/22 18:48, Sasha Levin wrote:
>>> From: Cezary Rojewski <cezary.rojewski@intel.com>
>>>
>>> [ Upstream commit f2bd1c5ae2cb0cf9525c9bffc0038c12dd7e1338 ]
>>
>> This commit on linux-stable seems to have broken a number of platforms.
>>
>> 6.0.2 worked fine.
>> 6.0.3 does not
>>
>> reverting this commit solves the problem, see
>> https://github.com/thesofproject/linux/issues/3960 for details.
>>
>> Are we missing a prerequisite patch for this commit?
> 
> Please see https://lore.kernel.org/r/20221024143931.15722-1-tiwai@suse.de
> 
> Does that solve it for you?

Yep, that's the revert I tested.