[PATCH AUTOSEL 6.8 01/43] tools/power turbostat: Fix added raw MSR output

[PATCH AUTOSEL 6.8 01/43] tools/power turbostat: Fix added raw MSR output

[Sasha Levin]

From: Doug Smythies <dsmythies@telus.net>

[ Upstream commit e5f4e68eed85fa8495d78cd966eecc2b27bb9e53 ]

When using --Summary mode, added MSRs in raw mode always
print zeros. Print the actual register contents.

Example, with patch:

note the added column:
--add msr0x64f,u32,package,raw,REASON

Where:

0x64F is MSR_CORE_PERF_LIMIT_REASONS

Busy%   Bzy_MHz PkgTmp  PkgWatt CorWatt     REASON
0.00    4800    35      1.42    0.76    0x00000000
0.00    4801    34      1.42    0.76    0x00000000
80.08   4531    66      108.17  107.52  0x08000000
98.69   4530    66      133.21  132.54  0x08000000
99.28   4505    66      128.26  127.60  0x0c000400
99.65   4486    68      124.91  124.25  0x0c000400
99.63   4483    68      124.90  124.25  0x0c000400
79.34   4481    41      99.80   99.13   0x0c000000
0.00    4801    41      1.40    0.73    0x0c000000

Where, for the test processor (i5-10600K):

PKG Limit #1: 125.000 Watts, 8.000000 sec
MSR bit 26 = log; bit 10 = status

PKG Limit #2: 136.000 Watts, 0.002441 sec
MSR bit 27 = log; bit 11 = status

Example, without patch:

Busy%   Bzy_MHz PkgTmp  PkgWatt CorWatt     REASON
0.01    4800    35      1.43    0.77    0x00000000
0.00    4801    35      1.39    0.73    0x00000000
83.49   4531    66      112.71  112.06  0x00000000
98.69   4530    68      133.35  132.69  0x00000000
99.31   4500    67      127.96  127.30  0x00000000
99.63   4483    69      124.91  124.25  0x00000000
99.61   4481    69      124.90  124.25  0x00000000
99.61   4481    71      124.92  124.25  0x00000000
59.35   4479    42      75.03   74.37   0x00000000
0.00    4800    42      1.39    0.73    0x00000000
0.00    4801    42      1.42    0.76    0x00000000

c000000

[lenb: simplified patch to apply only to package scope]

Signed-off-by: Doug Smythies <dsmythies@telus.net>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/power/x86/turbostat/turbostat.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 7a334377f92b9..fca7913f6c84d 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -2444,9 +2444,10 @@ int sum_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 	average.packages.rapl_dram_perf_status += p->rapl_dram_perf_status;
 
 	for (i = 0, mp = sys.pp; mp; i++, mp = mp->next) {
-		if (mp->format == FORMAT_RAW)
-			continue;
-		average.packages.counter[i] += p->counter[i];
+		if ((mp->format == FORMAT_RAW) && (topo.num_packages == 0))
+			average.packages.counter[i] = p->counter[i];
+		else
+			average.packages.counter[i] += p->counter[i];
 	}
 	return 0;
 }
-- 
2.43.0

[PATCH AUTOSEL 6.8 02/43] tools/power turbostat: Increase the limit for fd opened

[Sasha Levin]

From: Wyes Karny <wyes.karny@amd.com>

[ Upstream commit 3ac1d14d0583a2de75d49a5234d767e2590384dd ]

When running turbostat, a system with 512 cpus reaches the limit for
maximum number of file descriptors that can be opened. To solve this
problem, the limit is raised to 2^15, which is a large enough number.

Below data is collected from AMD server systems while running turbostat:

|-----------+-------------------------------|
| # of cpus | # of opened fds for turbostat |
|-----------+-------------------------------|
| 128       | 260                           |
|-----------+-------------------------------|
| 192       | 388                           |
|-----------+-------------------------------|
| 512       | 1028                          |
|-----------+-------------------------------|

So, the new max limit would be sufficient up to 2^14 cpus (but this
also depends on how many counters are enabled).

Reviewed-by: Doug Smythies <dsmythies@telus.net>
Tested-by: Doug Smythies <dsmythies@telus.net>
Signed-off-by: Wyes Karny <wyes.karny@amd.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/power/x86/turbostat/turbostat.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index fca7913f6c84d..2550a0e35914f 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -53,6 +53,8 @@
 #define	NAME_BYTES 20
 #define PATH_BYTES 128
 
+#define MAX_NOFILE 0x8000
+
 enum counter_scope { SCOPE_CPU, SCOPE_CORE, SCOPE_PACKAGE };
 enum counter_type { COUNTER_ITEMS, COUNTER_CYCLES, COUNTER_SECONDS, COUNTER_USEC };
 enum counter_format { FORMAT_RAW, FORMAT_DELTA, FORMAT_PERCENT };
@@ -6705,6 +6707,22 @@ void cmdline(int argc, char **argv)
 	}
 }
 
+void set_rlimit(void)
+{
+	struct rlimit limit;
+
+	if (getrlimit(RLIMIT_NOFILE, &limit) < 0)
+		err(1, "Failed to get rlimit");
+
+	if (limit.rlim_max < MAX_NOFILE)
+		limit.rlim_max = MAX_NOFILE;
+	if (limit.rlim_cur < MAX_NOFILE)
+		limit.rlim_cur = MAX_NOFILE;
+
+	if (setrlimit(RLIMIT_NOFILE, &limit) < 0)
+		err(1, "Failed to set rlimit");
+}
+
 int main(int argc, char **argv)
 {
 	int fd, ret;
@@ -6730,6 +6748,9 @@ int main(int argc, char **argv)
 
 	probe_sysfs();
 
+	if (!getuid())
+		set_rlimit();
+
 	turbostat_init();
 
 	msr_sum_record();
-- 
2.43.0

[PATCH AUTOSEL 6.8 03/43] tools/power turbostat: Fix Bzy_MHz documentation typo

[Sasha Levin]

From: Peng Liu <liupeng17@lenovo.com>

[ Upstream commit 0b13410b52c4636aacb6964a4253a797c0fa0d16 ]

The code calculates Bzy_MHz by multiplying TSC_delta * APERF_delta/MPERF_delta
The man page erroneously showed that TSC_delta was divided.

Signed-off-by: Peng Liu <liupeng17@lenovo.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/power/x86/turbostat/turbostat.8 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/power/x86/turbostat/turbostat.8 b/tools/power/x86/turbostat/turbostat.8
index 8f08c3fd498d5..1ba6340d3b3da 100644
--- a/tools/power/x86/turbostat/turbostat.8
+++ b/tools/power/x86/turbostat/turbostat.8
@@ -370,7 +370,7 @@ below the processor's base frequency.
 
 Busy% = MPERF_delta/TSC_delta
 
-Bzy_MHz = TSC_delta/APERF_delta/MPERF_delta/measurement_interval
+Bzy_MHz = TSC_delta*APERF_delta/MPERF_delta/measurement_interval
 
 Note that these calculations depend on TSC_delta, so they
 are not reliable during intervals when TSC_MHz is not running at the base frequency.
-- 
2.43.0

[PATCH AUTOSEL 6.8 04/43] tools/power turbostat: Do not print negative LPI residency

[Sasha Levin]

From: Chen Yu <yu.c.chen@intel.com>

[ Upstream commit 227ed18f456a68bbb69807294a9089208663a6d3 ]

turbostat prints the abnormal SYS%LPI across suspend-to-idle:
SYS%LPI = 114479815993277.50

This is reproduced by:
Run a freeze cycle, e.g. "sleepgraph -m freeze -rtcwake 15".
Then do a reboot. After boot up, launch the suspend-idle-idle
and check the SYS%LPI field.

The slp_so residence counter is in LPIT table, and BIOS does not
clears this register across reset. The PMC expects the OS to calculate
the LPI residency based on the delta. However, there is an firmware
issue that the LPIT gets cleared to 0 during the second suspend
to idle after the reboot, which brings negative delta value.

[lenb: updated to print "neg" upon this BIOS failure]

Reported-by: Todd Brandt <todd.e.brandt@intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/power/x86/turbostat/turbostat.c | 30 +++++++++++++++++++--------
 1 file changed, 21 insertions(+), 9 deletions(-)

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 2550a0e35914f..c23703dd54aa1 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -991,8 +991,8 @@ struct pkg_data {
 	unsigned long long pc8;
 	unsigned long long pc9;
 	unsigned long long pc10;
-	unsigned long long cpu_lpi;
-	unsigned long long sys_lpi;
+	long long cpu_lpi;
+	long long sys_lpi;
 	unsigned long long pkg_wtd_core_c0;
 	unsigned long long pkg_any_core_c0;
 	unsigned long long pkg_any_gfxe_c0;
@@ -1978,12 +1978,22 @@ int format_counters(struct thread_data *t, struct core_data *c, struct pkg_data
 	if (DO_BIC(BIC_Pkgpc10))
 		outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * p->pc10 / tsc);
 
-	if (DO_BIC(BIC_CPU_LPI))
-		outp +=
-		    sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * p->cpu_lpi / 1000000.0 / interval_float);
-	if (DO_BIC(BIC_SYS_LPI))
-		outp +=
-		    sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * p->sys_lpi / 1000000.0 / interval_float);
+	if (DO_BIC(BIC_CPU_LPI)) {
+		if (p->cpu_lpi >= 0)
+			outp +=
+			    sprintf(outp, "%s%.2f", (printed++ ? delim : ""),
+				    100.0 * p->cpu_lpi / 1000000.0 / interval_float);
+		else
+			outp += sprintf(outp, "%s(neg)", (printed++ ? delim : ""));
+	}
+	if (DO_BIC(BIC_SYS_LPI)) {
+		if (p->sys_lpi >= 0)
+			outp +=
+			    sprintf(outp, "%s%.2f", (printed++ ? delim : ""),
+				    100.0 * p->sys_lpi / 1000000.0 / interval_float);
+		else
+			outp += sprintf(outp, "%s(neg)", (printed++ ? delim : ""));
+	}
 
 	if (DO_BIC(BIC_PkgWatt))
 		outp +=
@@ -3832,7 +3842,8 @@ void re_initialize(void)
 {
 	free_all_buffers();
 	setup_all_buffers(false);
-	fprintf(outf, "turbostat: re-initialized with num_cpus %d, allowed_cpus %d\n", topo.num_cpus, topo.allowed_cpus);
+	fprintf(outf, "turbostat: re-initialized with num_cpus %d, allowed_cpus %d\n", topo.num_cpus,
+		topo.allowed_cpus);
 }
 
 void set_max_cpu_num(void)
@@ -6145,6 +6156,7 @@ void topology_update(void)
 	topo.allowed_packages = 0;
 	for_all_cpus(update_topo, ODD_COUNTERS);
 }
+
 void setup_all_buffers(bool startup)
 {
 	topology_probe(startup);
-- 
2.43.0

[PATCH AUTOSEL 6.8 05/43] tools/power turbostat: Expand probe_intel_uncore_frequency()

[Sasha Levin]

From: Len Brown <len.brown@intel.com>

[ Upstream commit bb6181fa6bc942aac3f7f2fa8e3831952a2ef118 ]

Print current frequency along with the current (and initial) limits

Probe and print uncore config also for machines using the new cluster API

Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/power/x86/turbostat/turbostat.c | 84 ++++++++++++++++++++-------
 1 file changed, 63 insertions(+), 21 deletions(-)

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index c23703dd54aa1..bbd2e0edadfae 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -4581,20 +4581,15 @@ static void dump_sysfs_file(char *path)
 static void probe_intel_uncore_frequency(void)
 {
 	int i, j;
-	char path[128];
+	char path[256];
 
 	if (!genuine_intel)
 		return;
 
-	if (access("/sys/devices/system/cpu/intel_uncore_frequency/package_00_die_00", R_OK))
-		return;
-
-	/* Cluster level sysfs not supported yet. */
-	if (!access("/sys/devices/system/cpu/intel_uncore_frequency/uncore00", R_OK))
-		return;
+	if (access("/sys/devices/system/cpu/intel_uncore_frequency/package_00_die_00/current_freq_khz", R_OK))
+		goto probe_cluster;
 
-	if (!access("/sys/devices/system/cpu/intel_uncore_frequency/package_00_die_00/current_freq_khz", R_OK))
-		BIC_PRESENT(BIC_UNCORE_MHZ);
+	BIC_PRESENT(BIC_UNCORE_MHZ);
 
 	if (quiet)
 		return;
@@ -4602,26 +4597,73 @@ static void probe_intel_uncore_frequency(void)
 	for (i = 0; i < topo.num_packages; ++i) {
 		for (j = 0; j < topo.num_die; ++j) {
 			int k, l;
+			char path_base[128];
+
+			sprintf(path_base, "/sys/devices/system/cpu/intel_uncore_frequency/package_%02d_die_%02d", i,
+				j);
 
-			sprintf(path, "/sys/devices/system/cpu/intel_uncore_frequency/package_0%d_die_0%d/min_freq_khz",
-				i, j);
+			sprintf(path, "%s/min_freq_khz", path_base);
 			k = read_sysfs_int(path);
-			sprintf(path, "/sys/devices/system/cpu/intel_uncore_frequency/package_0%d_die_0%d/max_freq_khz",
-				i, j);
+			sprintf(path, "%s/max_freq_khz", path_base);
 			l = read_sysfs_int(path);
-			fprintf(outf, "Uncore Frequency pkg%d die%d: %d - %d MHz ", i, j, k / 1000, l / 1000);
+			fprintf(outf, "Uncore Frequency package%d die%d: %d - %d MHz ", i, j, k / 1000, l / 1000);
 
-			sprintf(path,
-				"/sys/devices/system/cpu/intel_uncore_frequency/package_0%d_die_0%d/initial_min_freq_khz",
-				i, j);
+			sprintf(path, "%s/initial_min_freq_khz", path_base);
 			k = read_sysfs_int(path);
-			sprintf(path,
-				"/sys/devices/system/cpu/intel_uncore_frequency/package_0%d_die_0%d/initial_max_freq_khz",
-				i, j);
+			sprintf(path, "%s/initial_max_freq_khz", path_base);
 			l = read_sysfs_int(path);
-			fprintf(outf, "(%d - %d MHz)\n", k / 1000, l / 1000);
+			fprintf(outf, "(%d - %d MHz)", k / 1000, l / 1000);
+
+			sprintf(path, "%s/current_freq_khz", path_base);
+			k = read_sysfs_int(path);
+			fprintf(outf, " %d MHz\n", k / 1000);
 		}
 	}
+	return;
+
+probe_cluster:
+	if (access("/sys/devices/system/cpu/intel_uncore_frequency/uncore00/current_freq_khz", R_OK))
+		return;
+
+	if (quiet)
+		return;
+
+	for (i = 0;; ++i) {
+		int k, l;
+		char path_base[128];
+		int package_id, domain_id, cluster_id;
+
+		sprintf(path_base, "/sys/devices/system/cpu/intel_uncore_frequency/uncore%02d", i);
+
+		if (access(path_base, R_OK))
+			break;
+
+		sprintf(path, "%s/package_id", path_base);
+		package_id = read_sysfs_int(path);
+
+		sprintf(path, "%s/domain_id", path_base);
+		domain_id = read_sysfs_int(path);
+
+		sprintf(path, "%s/fabric_cluster_id", path_base);
+		cluster_id = read_sysfs_int(path);
+
+		sprintf(path, "%s/min_freq_khz", path_base);
+		k = read_sysfs_int(path);
+		sprintf(path, "%s/max_freq_khz", path_base);
+		l = read_sysfs_int(path);
+		fprintf(outf, "Uncore Frequency package%d domain%d cluster%d: %d - %d MHz ", package_id, domain_id,
+			cluster_id, k / 1000, l / 1000);
+
+		sprintf(path, "%s/initial_min_freq_khz", path_base);
+		k = read_sysfs_int(path);
+		sprintf(path, "%s/initial_max_freq_khz", path_base);
+		l = read_sysfs_int(path);
+		fprintf(outf, "(%d - %d MHz)", k / 1000, l / 1000);
+
+		sprintf(path, "%s/current_freq_khz", path_base);
+		k = read_sysfs_int(path);
+		fprintf(outf, " %d MHz\n", k / 1000);
+	}
 }
 
 static void probe_graphics(void)
-- 
2.43.0

[PATCH AUTOSEL 6.8 06/43] tools/power turbostat: Print ucode revision only if valid

[Sasha Levin]

From: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>

[ Upstream commit fb5ceca046efc84f69fcf9779a013f8a0e63bbff ]

If the MSR read were to fail, turbostat would print "microcode 0x0"

Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/power/x86/turbostat/turbostat.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index bbd2e0edadfae..a4a40a6e1b957 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -5679,6 +5679,7 @@ void process_cpuid()
 	unsigned int eax, ebx, ecx, edx;
 	unsigned int fms, family, model, stepping, ecx_flags, edx_flags;
 	unsigned long long ucode_patch = 0;
+	bool ucode_patch_valid = false;
 
 	eax = ebx = ecx = edx = 0;
 
@@ -5708,6 +5709,8 @@ void process_cpuid()
 
 	if (get_msr(sched_getcpu(), MSR_IA32_UCODE_REV, &ucode_patch))
 		warnx("get_msr(UCODE)");
+	else
+		ucode_patch_valid = true;
 
 	/*
 	 * check max extended function levels of CPUID.
@@ -5718,9 +5721,12 @@ void process_cpuid()
 	__cpuid(0x80000000, max_extended_level, ebx, ecx, edx);
 
 	if (!quiet) {
-		fprintf(outf, "CPUID(1): family:model:stepping 0x%x:%x:%x (%d:%d:%d) microcode 0x%x\n",
-			family, model, stepping, family, model, stepping,
-			(unsigned int)((ucode_patch >> 32) & 0xFFFFFFFF));
+		fprintf(outf, "CPUID(1): family:model:stepping 0x%x:%x:%x (%d:%d:%d)",
+			family, model, stepping, family, model, stepping);
+		if (ucode_patch_valid)
+			fprintf(outf, " microcode 0x%x", (unsigned int)((ucode_patch >> 32) & 0xFFFFFFFF));
+		fputc('\n', outf);
+
 		fprintf(outf, "CPUID(0x80000000): max_extended_levels: 0x%x\n", max_extended_level);
 		fprintf(outf, "CPUID(1): %s %s %s %s %s %s %s %s %s %s\n",
 			ecx_flags & (1 << 0) ? "SSE3" : "-",
-- 
2.43.0

[PATCH AUTOSEL 6.8 07/43] tools/power turbostat: Fix warning upon failed /dev/cpu_dma_latency read

[Sasha Levin]

From: Len Brown <len.brown@intel.com>

[ Upstream commit b6fe938317eed58e8c687bd5965a956e15fb5828 ]

Previously a failed read of /dev/cpu_dma_latency erroneously complained
turbostat: capget(CAP_SYS_ADMIN) failed, try "# setcap cap_sys_admin=ep ./turbostat

This went unnoticed because this file is typically visible to root,
and turbostat was typically run as root.

Going forward, when a non-root user can run turbostat...
Complain about failed read access to this file only if --debug is used.

Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/power/x86/turbostat/turbostat.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index a4a40a6e1b957..3438ad938d7e4 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -5545,7 +5545,8 @@ void print_dev_latency(void)
 
 	fd = open(path, O_RDONLY);
 	if (fd < 0) {
-		warnx("capget(CAP_SYS_ADMIN) failed, try \"# setcap cap_sys_admin=ep %s\"", progname);
+		if (debug)
+			warnx("Read %s failed", path);
 		return;
 	}
 
-- 
2.43.0

[PATCH AUTOSEL 6.8 08/43] btrfs: make btrfs_clear_delalloc_extent() free delalloc reserve

[Sasha Levin]

From: Boris Burkov <boris@bur.io>

[ Upstream commit 3c6f0c5ecc8910d4ffb0dfe85609ebc0c91c8f34 ]

Currently, this call site in btrfs_clear_delalloc_extent() only converts
the reservation. We are marking it not delalloc, so I don't think it
makes sense to keep the rsv around.  This is a path where we are not
sure to join a transaction, so it leads to incorrect free-ing during
umount.

Helps with the pass rate of generic/269 and generic/475.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Boris Burkov <boris@bur.io>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/btrfs/inode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 6e2715e3f3aa0..d202e68fb1508 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2523,7 +2523,7 @@ void btrfs_clear_delalloc_extent(struct btrfs_inode *inode,
 		 */
 		if (bits & EXTENT_CLEAR_META_RESV &&
 		    root != fs_info->tree_root)
-			btrfs_delalloc_release_metadata(inode, len, false);
+			btrfs_delalloc_release_metadata(inode, len, true);
 
 		/* For sanity tests. */
 		if (btrfs_is_testing(fs_info))
-- 
2.43.0

[PATCH AUTOSEL 6.8 09/43] btrfs: always clear PERTRANS metadata during commit

[Sasha Levin]

From: Boris Burkov <boris@bur.io>

[ Upstream commit 6e68de0bb0ed59e0554a0c15ede7308c47351e2d ]

It is possible to clear a root's IN_TRANS tag from the radix tree, but
not clear its PERTRANS, if there is some error in between. Eliminate
that possibility by moving the free up to where we clear the tag.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Boris Burkov <boris@bur.io>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/btrfs/transaction.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index f1705ae59e4a9..b93cdf5f179cf 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1496,6 +1496,7 @@ static noinline int commit_fs_roots(struct btrfs_trans_handle *trans)
 			radix_tree_tag_clear(&fs_info->fs_roots_radix,
 					(unsigned long)root->root_key.objectid,
 					BTRFS_ROOT_TRANS_TAG);
+			btrfs_qgroup_free_meta_all_pertrans(root);
 			spin_unlock(&fs_info->fs_roots_radix_lock);
 
 			btrfs_free_log(trans, root);
@@ -1520,7 +1521,6 @@ static noinline int commit_fs_roots(struct btrfs_trans_handle *trans)
 			if (ret2)
 				return ret2;
 			spin_lock(&fs_info->fs_roots_radix_lock);
-			btrfs_qgroup_free_meta_all_pertrans(root);
 		}
 	}
 	spin_unlock(&fs_info->fs_roots_radix_lock);
-- 
2.43.0

[PATCH AUTOSEL 6.8 10/43] memblock tests: fix undefined reference to `early_pfn_to_nid'

[Sasha Levin]

From: Wei Yang <richard.weiyang@gmail.com>

[ Upstream commit 7d8ed162e6a92268d4b2b84d364a931216102c8e ]

commit 6a9531c3a880 ("memblock: fix crash when reserved memory is not
added to memory") introduce the usage of early_pfn_to_nid, which is not
defined in memblock tests.

The original definition of early_pfn_to_nid is defined in mm.h, so let
add this in the corresponding mm.h.

Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
CC: Yajun Deng <yajun.deng@linux.dev>
CC: Mike Rapoport <rppt@kernel.org>
Link: https://lore.kernel.org/r/20240402132701.29744-2-richard.weiyang@gmail.com
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/include/linux/mm.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/include/linux/mm.h b/tools/include/linux/mm.h
index f3c82ab5b14cd..7d73da0980473 100644
--- a/tools/include/linux/mm.h
+++ b/tools/include/linux/mm.h
@@ -37,4 +37,9 @@ static inline void totalram_pages_add(long count)
 {
 }
 
+static inline int early_pfn_to_nid(unsigned long pfn)
+{
+	return 0;
+}
+
 #endif
-- 
2.43.0

[PATCH AUTOSEL 6.8 11/43] memblock tests: fix undefined reference to `panic'

[Sasha Levin]

From: Wei Yang <richard.weiyang@gmail.com>

[ Upstream commit e0f5a8e74be88f2476e58b25d3b49a9521bdc4ec ]

commit e96c6b8f212a ("memblock: report failures when memblock_can_resize
is not set") introduced the usage of panic, which is not defined in
memblock test.

Let's define it directly in panic.h to fix it.

Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
CC: Song Shuai <songshuaishuai@tinylab.org>
CC: Mike Rapoport <rppt@kernel.org>
Link: https://lore.kernel.org/r/20240402132701.29744-3-richard.weiyang@gmail.com
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/include/linux/kernel.h |  1 +
 tools/include/linux/panic.h  | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+)
 create mode 100644 tools/include/linux/panic.h

diff --git a/tools/include/linux/kernel.h b/tools/include/linux/kernel.h
index 4b0673bf52c2e..07cfad817d539 100644
--- a/tools/include/linux/kernel.h
+++ b/tools/include/linux/kernel.h
@@ -8,6 +8,7 @@
 #include <linux/build_bug.h>
 #include <linux/compiler.h>
 #include <linux/math.h>
+#include <linux/panic.h>
 #include <endian.h>
 #include <byteswap.h>
 
diff --git a/tools/include/linux/panic.h b/tools/include/linux/panic.h
new file mode 100644
index 0000000000000..9c8f17a41ce8e
--- /dev/null
+++ b/tools/include/linux/panic.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _TOOLS_LINUX_PANIC_H
+#define _TOOLS_LINUX_PANIC_H
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static inline void panic(const char *fmt, ...)
+{
+	va_list argp;
+
+	va_start(argp, fmt);
+	vfprintf(stderr, fmt, argp);
+	va_end(argp);
+	exit(-1);
+}
+
+#endif
-- 
2.43.0

[PATCH AUTOSEL 6.8 12/43] memblock tests: fix undefined reference to `BIT'

[Sasha Levin]

From: Wei Yang <richard.weiyang@gmail.com>

[ Upstream commit 592447f6cb3c20d606d6c5d8e6af68e99707b786 ]

commit 772dd0342727 ("mm: enumerate all gfp flags") define gfp flags
with the help of BIT, while gfp_types.h doesn't include header file for
the definition. This through an error on building memblock tests.

Let's include linux/bits.h to fix it.

Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
CC: Suren Baghdasaryan <surenb@google.com>
CC: Michal Hocko <mhocko@suse.com>
Link: https://lore.kernel.org/r/20240402132701.29744-4-richard.weiyang@gmail.com
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/gfp_types.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/gfp_types.h b/include/linux/gfp_types.h
index 1b6053da8754e..495ebf5f2cb6d 100644
--- a/include/linux/gfp_types.h
+++ b/include/linux/gfp_types.h
@@ -2,6 +2,8 @@
 #ifndef __LINUX_GFP_TYPES_H
 #define __LINUX_GFP_TYPES_H
 
+#include <linux/bits.h>
+
 /* The typedef is in types.h but we want the documentation here */
 #if 0
 /**
-- 
2.43.0

[PATCH AUTOSEL 6.8 13/43] nouveau/gsp: Avoid addressing beyond end of rpc->entries

[Sasha Levin]

From: Kees Cook <keescook@chromium.org>

[ Upstream commit 838ae9f45c4e43b4633d8b0ad1fbedff9ecf177d ]

Using the end of rpc->entries[] for addressing runs into both compile-time
and run-time detection of accessing beyond the end of the array. Use the
base pointer instead, since was allocated with the additional bytes for
storing the strings. Avoids the following warning in future GCC releases
with support for __counted_by:

In function 'fortify_memcpy_chk',
    inlined from 'r535_gsp_rpc_set_registry' at ../drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c:1123:3:
../include/linux/fortify-string.h:553:25: error: call to '__write_overflow_field' declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror=attribute-warning]
  553 |                         __write_overflow_field(p_size_field, size);
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

for this code:

	strings = (char *)&rpc->entries[NV_GSP_REG_NUM_ENTRIES];
	...
                memcpy(strings, r535_registry_entries[i].name, name_len);

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240330141159.work.063-kees@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c
index a73a5b5897904..dcafbb2004ca2 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c
@@ -1112,7 +1112,7 @@ r535_gsp_rpc_set_registry(struct nvkm_gsp *gsp)
 	rpc->numEntries = NV_GSP_REG_NUM_ENTRIES;
 
 	str_offset = offsetof(typeof(*rpc), entries[NV_GSP_REG_NUM_ENTRIES]);
-	strings = (char *)&rpc->entries[NV_GSP_REG_NUM_ENTRIES];
+	strings = (char *)rpc + str_offset;
 	for (i = 0; i < NV_GSP_REG_NUM_ENTRIES; i++) {
 		int name_len = strlen(r535_registry_entries[i].name) + 1;
 
-- 
2.43.0

[PATCH AUTOSEL 6.8 14/43] scsi: target: Fix SELinux error when systemd-modules loads the target module

[Sasha Levin]

From: Maurizio Lombardi <mlombard@redhat.com>

[ Upstream commit 97a54ef596c3fd24ec2b227ba8aaf2cf5415e779 ]

If the systemd-modules service loads the target module, the credentials of
that userspace process will be used to validate the access to the target db
directory.  SELinux will prevent it, reporting an error like the following:

kernel: audit: type=1400 audit(1676301082.205:4): avc: denied  { read }
for  pid=1020 comm="systemd-modules" name="target" dev="dm-3"
ino=4657583 scontext=system_u:system_r:systemd_modules_load_t:s0
tcontext=system_u:object_r:targetd_etc_rw_t:s0 tclass=dir permissive=0

Fix the error by using the kernel credentials to access the db directory

Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Link: https://lore.kernel.org/r/20240215143944.847184-2-mlombard@redhat.com
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/target/target_core_configfs.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index c1fbcdd161826..c40217f44b1bc 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -3672,6 +3672,8 @@ static int __init target_core_init_configfs(void)
 {
 	struct configfs_subsystem *subsys = &target_core_fabrics;
 	struct t10_alua_lu_gp *lu_gp;
+	struct cred *kern_cred;
+	const struct cred *old_cred;
 	int ret;
 
 	pr_debug("TARGET_CORE[0]: Loading Generic Kernel Storage"
@@ -3748,11 +3750,21 @@ static int __init target_core_init_configfs(void)
 	if (ret < 0)
 		goto out;
 
+	/* We use the kernel credentials to access the target directory */
+	kern_cred = prepare_kernel_cred(&init_task);
+	if (!kern_cred) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	old_cred = override_creds(kern_cred);
 	target_init_dbroot();
+	revert_creds(old_cred);
+	put_cred(kern_cred);
 
 	return 0;
 
 out:
+	target_xcopy_release_pt();
 	configfs_unregister_subsystem(subsys);
 	core_dev_release_virtual_lun0();
 	rd_module_exit();
-- 
2.43.0

[PATCH AUTOSEL 6.8 15/43] scsi: hisi_sas: Handle the NCQ error returned by D2H frame

[Sasha Levin]

From: Xiang Chen <chenxiang66@hisilicon.com>

[ Upstream commit 358e919a351f2ea4b412e7dac6b1c23ec10bd4f5 ]

We find that some disks use D2H frame instead of SDB frame to return NCQ
error. Currently, only the I/O corresponding to the D2H frame is processed
in this scenario, which does not meet the processing requirements of the
NCQ error scenario.  So we set dev_status to HISI_SAS_DEV_NCQ_ERR and abort
all I/Os of the disk in this scenario.

Co-developed-by: Xingui Yang <yangxingui@huawei.com>
Signed-off-by: Xingui Yang <yangxingui@huawei.com>
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Link: https://lore.kernel.org/r/20240402035513.2024241-2-chenxiang66@hisilicon.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index b56fbc61a15ae..86112f234740d 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -2244,7 +2244,15 @@ slot_err_v3_hw(struct hisi_hba *hisi_hba, struct sas_task *task,
 	case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
 		if ((dw0 & CMPLT_HDR_RSPNS_XFRD_MSK) &&
 		    (sipc_rx_err_type & RX_FIS_STATUS_ERR_MSK)) {
-			ts->stat = SAS_PROTO_RESPONSE;
+			if (task->ata_task.use_ncq) {
+				struct domain_device *device = task->dev;
+				struct hisi_sas_device *sas_dev = device->lldd_dev;
+
+				sas_dev->dev_status = HISI_SAS_DEV_NCQ_ERR;
+				slot->abort = 1;
+			} else {
+				ts->stat = SAS_PROTO_RESPONSE;
+			}
 		} else if (dma_rx_err_type & RX_DATA_LEN_UNDERFLOW_MSK) {
 			ts->residual = trans_tx_fail_type;
 			ts->stat = SAS_DATA_UNDERRUN;
-- 
2.43.0

[PATCH AUTOSEL 6.8 16/43] blk-iocost: avoid out of bounds shift

[Sasha Levin]

From: Rik van Riel <riel@surriel.com>

[ Upstream commit beaa51b36012fad5a4d3c18b88a617aea7a9b96d ]

UBSAN catches undefined behavior in blk-iocost, where sometimes
iocg->delay is shifted right by a number that is too large,
resulting in undefined behavior on some architectures.

[  186.556576] ------------[ cut here ]------------
UBSAN: shift-out-of-bounds in block/blk-iocost.c:1366:23
shift exponent 64 is too large for 64-bit type 'u64' (aka 'unsigned long long')
CPU: 16 PID: 0 Comm: swapper/16 Tainted: G S          E    N 6.9.0-0_fbk700_debug_rc2_kbuilder_0_gc85af715cac0 #1
Hardware name: Quanta Twin Lakes MP/Twin Lakes Passive MP, BIOS F09_3A23 12/08/2020
Call Trace:
 <IRQ>
 dump_stack_lvl+0x8f/0xe0
 __ubsan_handle_shift_out_of_bounds+0x22c/0x280
 iocg_kick_delay+0x30b/0x310
 ioc_timer_fn+0x2fb/0x1f80
 __run_timer_base+0x1b6/0x250
...

Avoid that undefined behavior by simply taking the
"delay = 0" branch if the shift is too large.

I am not sure what the symptoms of an undefined value
delay will be, but I suspect it could be more than a
little annoying to debug.

Signed-off-by: Rik van Riel <riel@surriel.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Josef Bacik <josef@toxicpanda.com>
Cc: Jens Axboe <axboe@kernel.dk>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20240404123253.0f58010f@imladris.surriel.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 block/blk-iocost.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/block/blk-iocost.c b/block/blk-iocost.c
index 04d44f0bcbc85..b1c4c874d4201 100644
--- a/block/blk-iocost.c
+++ b/block/blk-iocost.c
@@ -1347,7 +1347,7 @@ static bool iocg_kick_delay(struct ioc_gq *iocg, struct ioc_now *now)
 {
 	struct ioc *ioc = iocg->ioc;
 	struct blkcg_gq *blkg = iocg_to_blkg(iocg);
-	u64 tdelta, delay, new_delay;
+	u64 tdelta, delay, new_delay, shift;
 	s64 vover, vover_pct;
 	u32 hwa;
 
@@ -1362,8 +1362,9 @@ static bool iocg_kick_delay(struct ioc_gq *iocg, struct ioc_now *now)
 
 	/* calculate the current delay in effect - 1/2 every second */
 	tdelta = now->now - iocg->delay_at;
-	if (iocg->delay)
-		delay = iocg->delay >> div64_u64(tdelta, USEC_PER_SEC);
+	shift = div64_u64(tdelta, USEC_PER_SEC);
+	if (iocg->delay && shift < BITS_PER_LONG)
+		delay = iocg->delay >> shift;
 	else
 		delay = 0;
 
-- 
2.43.0

[PATCH AUTOSEL 6.8 17/43] accel/ivpu: Remove d3hot_after_power_off WA

[Sasha Levin]

From: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>

[ Upstream commit e3caadf1f9dfc9d62b5ffc3bd73ebac0c8f26b3f ]

Always enter D3hot after entering D0i3 an all platforms.
This minimizes power usage.

Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240402104929.941186-3-jacek.lawrynowicz@linux.intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/accel/ivpu/ivpu_drv.c     | 20 ++++++++++----------
 drivers/accel/ivpu/ivpu_drv.h     |  3 +--
 drivers/accel/ivpu/ivpu_hw_37xx.c |  4 +---
 drivers/accel/ivpu/ivpu_pm.c      |  7 ++-----
 4 files changed, 14 insertions(+), 20 deletions(-)

diff --git a/drivers/accel/ivpu/ivpu_drv.c b/drivers/accel/ivpu/ivpu_drv.c
index b35c7aedca03e..bad1ccc81ad73 100644
--- a/drivers/accel/ivpu/ivpu_drv.c
+++ b/drivers/accel/ivpu/ivpu_drv.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (C) 2020-2023 Intel Corporation
+ * Copyright (C) 2020-2024 Intel Corporation
  */
 
 #include <linux/firmware.h>
@@ -371,12 +371,15 @@ int ivpu_shutdown(struct ivpu_device *vdev)
 {
 	int ret;
 
-	ivpu_prepare_for_reset(vdev);
+	/* Save PCI state before powering down as it sometimes gets corrupted if NPU hangs */
+	pci_save_state(to_pci_dev(vdev->drm.dev));
 
 	ret = ivpu_hw_power_down(vdev);
 	if (ret)
 		ivpu_warn(vdev, "Failed to power down HW: %d\n", ret);
 
+	pci_set_power_state(to_pci_dev(vdev->drm.dev), PCI_D3hot);
+
 	return ret;
 }
 
@@ -543,11 +546,11 @@ static int ivpu_dev_init(struct ivpu_device *vdev)
 	/* Power up early so the rest of init code can access VPU registers */
 	ret = ivpu_hw_power_up(vdev);
 	if (ret)
-		goto err_power_down;
+		goto err_shutdown;
 
 	ret = ivpu_mmu_global_context_init(vdev);
 	if (ret)
-		goto err_power_down;
+		goto err_shutdown;
 
 	ret = ivpu_mmu_init(vdev);
 	if (ret)
@@ -584,10 +587,8 @@ static int ivpu_dev_init(struct ivpu_device *vdev)
 	ivpu_mmu_reserved_context_fini(vdev);
 err_mmu_gctx_fini:
 	ivpu_mmu_global_context_fini(vdev);
-err_power_down:
-	ivpu_hw_power_down(vdev);
-	if (IVPU_WA(d3hot_after_power_off))
-		pci_set_power_state(to_pci_dev(vdev->drm.dev), PCI_D3hot);
+err_shutdown:
+	ivpu_shutdown(vdev);
 err_xa_destroy:
 	xa_destroy(&vdev->submitted_jobs_xa);
 	xa_destroy(&vdev->context_xa);
@@ -610,9 +611,8 @@ static void ivpu_bo_unbind_all_user_contexts(struct ivpu_device *vdev)
 static void ivpu_dev_fini(struct ivpu_device *vdev)
 {
 	ivpu_pm_disable(vdev);
+	ivpu_prepare_for_reset(vdev);
 	ivpu_shutdown(vdev);
-	if (IVPU_WA(d3hot_after_power_off))
-		pci_set_power_state(to_pci_dev(vdev->drm.dev), PCI_D3hot);
 
 	ivpu_jobs_abort_all(vdev);
 	ivpu_job_done_consumer_fini(vdev);
diff --git a/drivers/accel/ivpu/ivpu_drv.h b/drivers/accel/ivpu/ivpu_drv.h
index 069ace4adb2d1..e7a9e849940ea 100644
--- a/drivers/accel/ivpu/ivpu_drv.h
+++ b/drivers/accel/ivpu/ivpu_drv.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * Copyright (C) 2020-2023 Intel Corporation
+ * Copyright (C) 2020-2024 Intel Corporation
  */
 
 #ifndef __IVPU_DRV_H__
@@ -87,7 +87,6 @@
 struct ivpu_wa_table {
 	bool punit_disabled;
 	bool clear_runtime_mem;
-	bool d3hot_after_power_off;
 	bool interrupt_clear_with_0;
 	bool disable_clock_relinquish;
 	bool disable_d0i3_msg;
diff --git a/drivers/accel/ivpu/ivpu_hw_37xx.c b/drivers/accel/ivpu/ivpu_hw_37xx.c
index 32bb772e03cf9..5e392b6823764 100644
--- a/drivers/accel/ivpu/ivpu_hw_37xx.c
+++ b/drivers/accel/ivpu/ivpu_hw_37xx.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (C) 2020-2023 Intel Corporation
+ * Copyright (C) 2020-2024 Intel Corporation
  */
 
 #include "ivpu_drv.h"
@@ -75,7 +75,6 @@ static void ivpu_hw_wa_init(struct ivpu_device *vdev)
 {
 	vdev->wa.punit_disabled = false;
 	vdev->wa.clear_runtime_mem = false;
-	vdev->wa.d3hot_after_power_off = true;
 
 	REGB_WR32(VPU_37XX_BUTTRESS_INTERRUPT_STAT, BUTTRESS_ALL_IRQ_MASK);
 	if (REGB_RD32(VPU_37XX_BUTTRESS_INTERRUPT_STAT) == BUTTRESS_ALL_IRQ_MASK) {
@@ -86,7 +85,6 @@ static void ivpu_hw_wa_init(struct ivpu_device *vdev)
 
 	IVPU_PRINT_WA(punit_disabled);
 	IVPU_PRINT_WA(clear_runtime_mem);
-	IVPU_PRINT_WA(d3hot_after_power_off);
 	IVPU_PRINT_WA(interrupt_clear_with_0);
 }
 
diff --git a/drivers/accel/ivpu/ivpu_pm.c b/drivers/accel/ivpu/ivpu_pm.c
index a15d30d0943af..2d706cb29a5a5 100644
--- a/drivers/accel/ivpu/ivpu_pm.c
+++ b/drivers/accel/ivpu/ivpu_pm.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (C) 2020-2023 Intel Corporation
+ * Copyright (C) 2020-2024 Intel Corporation
  */
 
 #include <linux/highmem.h>
@@ -58,15 +58,12 @@ static int ivpu_suspend(struct ivpu_device *vdev)
 {
 	int ret;
 
-	/* Save PCI state before powering down as it sometimes gets corrupted if NPU hangs */
-	pci_save_state(to_pci_dev(vdev->drm.dev));
+	ivpu_prepare_for_reset(vdev);
 
 	ret = ivpu_shutdown(vdev);
 	if (ret)
 		ivpu_err(vdev, "Failed to shutdown VPU: %d\n", ret);
 
-	pci_set_power_state(to_pci_dev(vdev->drm.dev), PCI_D3hot);
-
 	return ret;
 }
 
-- 
2.43.0

[PATCH AUTOSEL 6.8 18/43] accel/ivpu: Improve clarity of MMU error messages

[Sasha Levin]

From: "Wachowski, Karol" <karol.wachowski@intel.com>

[ Upstream commit 3556f922612caf4c9b97cf7337626f8342b3dea3 ]

This patch improves readability and clarity of MMU error messages.
Previously, the error strings were somewhat confusing and could lead to
ambiguous interpretations, making it difficult to diagnose issues.

Signed-off-by: Wachowski, Karol <karol.wachowski@intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240402104929.941186-6-jacek.lawrynowicz@linux.intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/accel/ivpu/ivpu_mmu.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/accel/ivpu/ivpu_mmu.c b/drivers/accel/ivpu/ivpu_mmu.c
index 91bd640655ab3..2e46b322c4505 100644
--- a/drivers/accel/ivpu/ivpu_mmu.c
+++ b/drivers/accel/ivpu/ivpu_mmu.c
@@ -278,7 +278,7 @@ static const char *ivpu_mmu_event_to_str(u32 cmd)
 	case IVPU_MMU_EVT_F_VMS_FETCH:
 		return "Fetch of VMS caused external abort";
 	default:
-		return "Unknown CMDQ command";
+		return "Unknown event";
 	}
 }
 
@@ -286,15 +286,15 @@ static const char *ivpu_mmu_cmdq_err_to_str(u32 err)
 {
 	switch (err) {
 	case IVPU_MMU_CERROR_NONE:
-		return "No CMDQ Error";
+		return "No error";
 	case IVPU_MMU_CERROR_ILL:
 		return "Illegal command";
 	case IVPU_MMU_CERROR_ABT:
-		return "External abort on CMDQ read";
+		return "External abort on command queue read";
 	case IVPU_MMU_CERROR_ATC_INV_SYNC:
 		return "Sync failed to complete ATS invalidation";
 	default:
-		return "Unknown CMDQ Error";
+		return "Unknown error";
 	}
 }
 
-- 
2.43.0

[PATCH AUTOSEL 6.8 19/43] accel/ivpu: Fix missed error message after VPU rename

[Sasha Levin]

From: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>

[ Upstream commit 0d298e23292b7a5b58c5589fe33b96e95363214f ]

Change "VPU" to "NPU" in ivpu_suspend() so it matches all other error
messages.

Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240402104929.941186-8-jacek.lawrynowicz@linux.intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/accel/ivpu/ivpu_pm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/accel/ivpu/ivpu_pm.c b/drivers/accel/ivpu/ivpu_pm.c
index 2d706cb29a5a5..64618fc2cec40 100644
--- a/drivers/accel/ivpu/ivpu_pm.c
+++ b/drivers/accel/ivpu/ivpu_pm.c
@@ -62,7 +62,7 @@ static int ivpu_suspend(struct ivpu_device *vdev)
 
 	ret = ivpu_shutdown(vdev);
 	if (ret)
-		ivpu_err(vdev, "Failed to shutdown VPU: %d\n", ret);
+		ivpu_err(vdev, "Failed to shutdown NPU: %d\n", ret);
 
 	return ret;
 }
-- 
2.43.0

[PATCH AUTOSEL 6.8 20/43] platform/x86: acer-wmi: Add support for Acer PH18-71

[Sasha Levin]

From: Bernhard Rosenkränzer <bero@baylibre.com>

[ Upstream commit b45d0d01da542be280d935d87b71465028cdcb1f ]

Add Acer Predator PH18-71 to acer_quirks with predator_v4
to support mode button and fan speed sensor.

Signed-off-by: Bernhard Rosenkränzer <bero@baylibre.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240329152800.29393-1-bero@baylibre.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/acer-wmi.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index ee2e164f86b9c..38c932df6446a 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -597,6 +597,15 @@ static const struct dmi_system_id acer_quirks[] __initconst = {
 		},
 		.driver_data = &quirk_acer_predator_v4,
 	},
+	{
+		.callback = dmi_matched,
+		.ident = "Acer Predator PH18-71",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Predator PH18-71"),
+		},
+		.driver_data = &quirk_acer_predator_v4,
+	},
 	{
 		.callback = set_force_caps,
 		.ident = "Acer Aspire Switch 10E SW3-016",
-- 
2.43.0

[PATCH AUTOSEL 6.8 21/43] gpu: host1x: Do not setup DMA for virtual devices

[Sasha Levin]

From: Thierry Reding <treding@nvidia.com>

[ Upstream commit 8ab58f6841b19423231c5db3378691ec80c778f8 ]

The host1x devices are virtual compound devices and do not perform DMA
accesses themselves, so they do not need to be set up for DMA.

Ideally we would also not need to set up DMA masks for the virtual
devices, but we currently still need those for legacy support on old
hardware.

Tested-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240314154943.2487549-1-thierry.reding@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/host1x/bus.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/gpu/host1x/bus.c b/drivers/gpu/host1x/bus.c
index 84d042796d2e6..3937889fa912d 100644
--- a/drivers/gpu/host1x/bus.c
+++ b/drivers/gpu/host1x/bus.c
@@ -351,11 +351,6 @@ static int host1x_device_uevent(const struct device *dev,
 	return 0;
 }
 
-static int host1x_dma_configure(struct device *dev)
-{
-	return of_dma_configure(dev, dev->of_node, true);
-}
-
 static const struct dev_pm_ops host1x_device_pm_ops = {
 	.suspend = pm_generic_suspend,
 	.resume = pm_generic_resume,
@@ -369,7 +364,6 @@ struct bus_type host1x_bus_type = {
 	.name = "host1x",
 	.match = host1x_device_match,
 	.uevent = host1x_device_uevent,
-	.dma_configure = host1x_dma_configure,
 	.pm = &host1x_device_pm_ops,
 };
 
@@ -458,8 +452,6 @@ static int host1x_device_add(struct host1x *host1x,
 	device->dev.bus = &host1x_bus_type;
 	device->dev.parent = host1x->dev;
 
-	of_dma_configure(&device->dev, host1x->dev->of_node, true);
-
 	device->dev.dma_parms = &device->dma_parms;
 	dma_set_max_seg_size(&device->dev, UINT_MAX);
 
-- 
2.43.0

[PATCH AUTOSEL 6.8 22/43] MIPS: scall: Save thread_info.syscall unconditionally on entry

[Sasha Levin]

From: Jiaxun Yang <jiaxun.yang@flygoat.com>

[ Upstream commit 4370b673ccf240bf7587b0cb8e6726a5ccaf1f17 ]

thread_info.syscall is used by syscall_get_nr to supply syscall nr
over a thread stack frame.

Previously, thread_info.syscall is only saved at syscall_trace_enter
when syscall tracing is enabled. However rest of the kernel code do
expect syscall_get_nr to be available without syscall tracing. The
previous design breaks collect_syscall.

Move saving process to syscall entry to fix it.

Reported-by: Xi Ruoyao <xry111@xry111.site>
Link: https://github.com/util-linux/util-linux/issues/2867
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/include/asm/ptrace.h |  2 +-
 arch/mips/kernel/asm-offsets.c |  1 +
 arch/mips/kernel/ptrace.c      | 15 ++++++---------
 arch/mips/kernel/scall32-o32.S | 23 +++++++++++++----------
 arch/mips/kernel/scall64-n32.S |  3 ++-
 arch/mips/kernel/scall64-n64.S |  3 ++-
 arch/mips/kernel/scall64-o32.S | 33 +++++++++++++++++----------------
 7 files changed, 42 insertions(+), 38 deletions(-)

diff --git a/arch/mips/include/asm/ptrace.h b/arch/mips/include/asm/ptrace.h
index d14d0e37ad02d..4a2b40ce39e09 100644
--- a/arch/mips/include/asm/ptrace.h
+++ b/arch/mips/include/asm/ptrace.h
@@ -159,7 +159,7 @@ extern unsigned long exception_ip(struct pt_regs *regs);
 #define exception_ip(regs) exception_ip(regs)
 #define profile_pc(regs) instruction_pointer(regs)
 
-extern asmlinkage long syscall_trace_enter(struct pt_regs *regs, long syscall);
+extern asmlinkage long syscall_trace_enter(struct pt_regs *regs);
 extern asmlinkage void syscall_trace_leave(struct pt_regs *regs);
 
 extern void die(const char *, struct pt_regs *) __noreturn;
diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c
index d1b11f66f748f..cb1045ebab062 100644
--- a/arch/mips/kernel/asm-offsets.c
+++ b/arch/mips/kernel/asm-offsets.c
@@ -101,6 +101,7 @@ void output_thread_info_defines(void)
 	OFFSET(TI_CPU, thread_info, cpu);
 	OFFSET(TI_PRE_COUNT, thread_info, preempt_count);
 	OFFSET(TI_REGS, thread_info, regs);
+	OFFSET(TI_SYSCALL, thread_info, syscall);
 	DEFINE(_THREAD_SIZE, THREAD_SIZE);
 	DEFINE(_THREAD_MASK, THREAD_MASK);
 	DEFINE(_IRQ_STACK_SIZE, IRQ_STACK_SIZE);
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 59288c13b581b..61503a36067e9 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -1317,16 +1317,13 @@ long arch_ptrace(struct task_struct *child, long request,
  * Notification of system call entry/exit
  * - triggered by current->work.syscall_trace
  */
-asmlinkage long syscall_trace_enter(struct pt_regs *regs, long syscall)
+asmlinkage long syscall_trace_enter(struct pt_regs *regs)
 {
 	user_exit();
 
-	current_thread_info()->syscall = syscall;
-
 	if (test_thread_flag(TIF_SYSCALL_TRACE)) {
 		if (ptrace_report_syscall_entry(regs))
 			return -1;
-		syscall = current_thread_info()->syscall;
 	}
 
 #ifdef CONFIG_SECCOMP
@@ -1335,7 +1332,7 @@ asmlinkage long syscall_trace_enter(struct pt_regs *regs, long syscall)
 		struct seccomp_data sd;
 		unsigned long args[6];
 
-		sd.nr = syscall;
+		sd.nr = current_thread_info()->syscall;
 		sd.arch = syscall_get_arch(current);
 		syscall_get_arguments(current, regs, args);
 		for (i = 0; i < 6; i++)
@@ -1345,23 +1342,23 @@ asmlinkage long syscall_trace_enter(struct pt_regs *regs, long syscall)
 		ret = __secure_computing(&sd);
 		if (ret == -1)
 			return ret;
-		syscall = current_thread_info()->syscall;
 	}
 #endif
 
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 		trace_sys_enter(regs, regs->regs[2]);
 
-	audit_syscall_entry(syscall, regs->regs[4], regs->regs[5],
+	audit_syscall_entry(current_thread_info()->syscall,
+			    regs->regs[4], regs->regs[5],
 			    regs->regs[6], regs->regs[7]);
 
 	/*
 	 * Negative syscall numbers are mistaken for rejected syscalls, but
 	 * won't have had the return value set appropriately, so we do so now.
 	 */
-	if (syscall < 0)
+	if (current_thread_info()->syscall < 0)
 		syscall_set_return_value(current, regs, -ENOSYS, 0);
-	return syscall;
+	return current_thread_info()->syscall;
 }
 
 /*
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 18dc9b3450561..2c604717e6308 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -77,6 +77,18 @@ loads_done:
 	PTR_WD	load_a7, bad_stack_a7
 	.previous
 
+	/*
+	 * syscall number is in v0 unless we called syscall(__NR_###)
+	 * where the real syscall number is in a0
+	 */
+	subu	t2, v0,  __NR_O32_Linux
+	bnez	t2, 1f /* __NR_syscall at offset 0 */
+	LONG_S	a0, TI_SYSCALL($28)	# Save a0 as syscall number
+	b	2f
+1:
+	LONG_S	v0, TI_SYSCALL($28)	# Save v0 as syscall number
+2:
+
 	lw	t0, TI_FLAGS($28)	# syscall tracing enabled?
 	li	t1, _TIF_WORK_SYSCALL_ENTRY
 	and	t0, t1
@@ -114,16 +126,7 @@ syscall_trace_entry:
 	SAVE_STATIC
 	move	a0, sp
 
-	/*
-	 * syscall number is in v0 unless we called syscall(__NR_###)
-	 * where the real syscall number is in a0
-	 */
-	move	a1, v0
-	subu	t2, v0,  __NR_O32_Linux
-	bnez	t2, 1f /* __NR_syscall at offset 0 */
-	lw	a1, PT_R4(sp)
-
-1:	jal	syscall_trace_enter
+	jal	syscall_trace_enter
 
 	bltz	v0, 1f			# seccomp failed? Skip syscall
 
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 97456b2ca7dc3..97788859238c3 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -44,6 +44,8 @@ NESTED(handle_sysn32, PT_SIZE, sp)
 
 	sd	a3, PT_R26(sp)		# save a3 for syscall restarting
 
+	LONG_S	v0, TI_SYSCALL($28)     # Store syscall number
+
 	li	t1, _TIF_WORK_SYSCALL_ENTRY
 	LONG_L	t0, TI_FLAGS($28)	# syscall tracing enabled?
 	and	t0, t1, t0
@@ -72,7 +74,6 @@ syscall_common:
 n32_syscall_trace_entry:
 	SAVE_STATIC
 	move	a0, sp
-	move	a1, v0
 	jal	syscall_trace_enter
 
 	bltz	v0, 1f			# seccomp failed? Skip syscall
diff --git a/arch/mips/kernel/scall64-n64.S b/arch/mips/kernel/scall64-n64.S
index e6264aa62e457..be11ea5cc67e0 100644
--- a/arch/mips/kernel/scall64-n64.S
+++ b/arch/mips/kernel/scall64-n64.S
@@ -46,6 +46,8 @@ NESTED(handle_sys64, PT_SIZE, sp)
 
 	sd	a3, PT_R26(sp)		# save a3 for syscall restarting
 
+	LONG_S	v0, TI_SYSCALL($28)     # Store syscall number
+
 	li	t1, _TIF_WORK_SYSCALL_ENTRY
 	LONG_L	t0, TI_FLAGS($28)	# syscall tracing enabled?
 	and	t0, t1, t0
@@ -82,7 +84,6 @@ n64_syscall_exit:
 syscall_trace_entry:
 	SAVE_STATIC
 	move	a0, sp
-	move	a1, v0
 	jal	syscall_trace_enter
 
 	bltz	v0, 1f			# seccomp failed? Skip syscall
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index d3c2616cba226..7a5abb73e5312 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -79,6 +79,22 @@ loads_done:
 	PTR_WD	load_a7, bad_stack_a7
 	.previous
 
+	/*
+	 * absolute syscall number is in v0 unless we called syscall(__NR_###)
+	 * where the real syscall number is in a0
+	 * note: NR_syscall is the first O32 syscall but the macro is
+	 * only defined when compiling with -mabi=32 (CONFIG_32BIT)
+	 * therefore __NR_O32_Linux is used (4000)
+	 */
+
+	subu	t2, v0,  __NR_O32_Linux
+	bnez	t2, 1f /* __NR_syscall at offset 0 */
+	LONG_S	a0, TI_SYSCALL($28)	# Save a0 as syscall number
+	b	2f
+1:
+	LONG_S	v0, TI_SYSCALL($28)	# Save v0 as syscall number
+2:
+
 	li	t1, _TIF_WORK_SYSCALL_ENTRY
 	LONG_L	t0, TI_FLAGS($28)	# syscall tracing enabled?
 	and	t0, t1, t0
@@ -113,22 +129,7 @@ trace_a_syscall:
 	sd	a7, PT_R11(sp)		# For indirect syscalls
 
 	move	a0, sp
-	/*
-	 * absolute syscall number is in v0 unless we called syscall(__NR_###)
-	 * where the real syscall number is in a0
-	 * note: NR_syscall is the first O32 syscall but the macro is
-	 * only defined when compiling with -mabi=32 (CONFIG_32BIT)
-	 * therefore __NR_O32_Linux is used (4000)
-	 */
-	.set	push
-	.set	reorder
-	subu	t1, v0,  __NR_O32_Linux
-	move	a1, v0
-	bnez	t1, 1f /* __NR_syscall at offset 0 */
-	ld	a1, PT_R4(sp) /* Arg1 for __NR_syscall case */
-	.set	pop
-
-1:	jal	syscall_trace_enter
+	jal	syscall_trace_enter
 
 	bltz	v0, 1f			# seccomp failed? Skip syscall
 
-- 
2.43.0

[PATCH AUTOSEL 6.8 23/43] tools/power/turbostat: Fix uncore frequency file string

[Sasha Levin]

From: Justin Ernst <justin.ernst@hpe.com>

[ Upstream commit 60add818ab2543b7e4f2bfeaacf2504743c1eb50 ]

Running turbostat on a 16 socket HPE Scale-up Compute 3200 (SapphireRapids) fails with:
turbostat: /sys/devices/system/cpu/intel_uncore_frequency/package_010_die_00/current_freq_khz: open failed: No such file or directory

We observe the sysfs uncore frequency directories named:
...
package_09_die_00/
package_10_die_00/
package_11_die_00/
...
package_15_die_00/

The culprit is an incorrect sprintf format string "package_0%d_die_0%d" used
with each instance of reading uncore frequency files. uncore-frequency-common.c
creates the sysfs directory with the format "package_%02d_die_%02d". Once the
package value reaches double digits, the formats diverge.

Change each instance of "package_0%d_die_0%d" to "package_%02d_die_%02d".

[lenb: deleted the probe part of this patch, as it was already fixed]

Signed-off-by: Justin Ernst <justin.ernst@hpe.com>
Reviewed-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/power/x86/turbostat/turbostat.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 3438ad938d7e4..53b764422e804 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -2612,7 +2612,7 @@ unsigned long long get_uncore_mhz(int package, int die)
 {
 	char path[128];
 
-	sprintf(path, "/sys/devices/system/cpu/intel_uncore_frequency/package_0%d_die_0%d/current_freq_khz", package,
+	sprintf(path, "/sys/devices/system/cpu/intel_uncore_frequency/package_%02d_die_%02d/current_freq_khz", package,
 		die);
 
 	return (snapshot_sysfs_counter(path) / 1000);
-- 
2.43.0

[PATCH AUTOSEL 6.8 24/43] net: add copy_safe_from_sockptr() helper

[Sasha Levin]

From: Eric Dumazet <edumazet@google.com>

[ Upstream commit 6309863b31dd80317cd7d6824820b44e254e2a9c ]

copy_from_sockptr() helper is unsafe, unless callers
did the prior check against user provided optlen.

Too many callers get this wrong, lets add a helper to
fix them and avoid future copy/paste bugs.

Instead of :

   if (optlen < sizeof(opt)) {
       err = -EINVAL;
       break;
   }
   if (copy_from_sockptr(&opt, optval, sizeof(opt)) {
       err = -EFAULT;
       break;
   }

Use :

   err = copy_safe_from_sockptr(&opt, sizeof(opt),
                                optval, optlen);
   if (err)
       break;

Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20240408082845.3957374-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/sockptr.h | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/include/linux/sockptr.h b/include/linux/sockptr.h
index 307961b41541a..317200cd3a603 100644
--- a/include/linux/sockptr.h
+++ b/include/linux/sockptr.h
@@ -50,11 +50,36 @@ static inline int copy_from_sockptr_offset(void *dst, sockptr_t src,
 	return 0;
 }
 
+/* Deprecated.
+ * This is unsafe, unless caller checked user provided optlen.
+ * Prefer copy_safe_from_sockptr() instead.
+ */
 static inline int copy_from_sockptr(void *dst, sockptr_t src, size_t size)
 {
 	return copy_from_sockptr_offset(dst, src, 0, size);
 }
 
+/**
+ * copy_safe_from_sockptr: copy a struct from sockptr
+ * @dst:   Destination address, in kernel space. This buffer must be @ksize
+ *         bytes long.
+ * @ksize: Size of @dst struct.
+ * @optval: Source address. (in user or kernel space)
+ * @optlen: Size of @optval data.
+ *
+ * Returns:
+ *  * -EINVAL: @optlen < @ksize
+ *  * -EFAULT: access to userspace failed.
+ *  * 0 : @ksize bytes were copied
+ */
+static inline int copy_safe_from_sockptr(void *dst, size_t ksize,
+					 sockptr_t optval, unsigned int optlen)
+{
+	if (optlen < ksize)
+		return -EINVAL;
+	return copy_from_sockptr(dst, optval, ksize);
+}
+
 static inline int copy_struct_from_sockptr(void *dst, size_t ksize,
 		sockptr_t src, size_t usize)
 {
-- 
2.43.0

[PATCH AUTOSEL 6.8 25/43] nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies

[Sasha Levin]

From: Eric Dumazet <edumazet@google.com>

[ Upstream commit 7a87441c9651ba37842f4809224aca13a554a26f ]

syzbot reported unsafe calls to copy_from_sockptr() [1]

Use copy_safe_from_sockptr() instead.

[1]

BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset include/linux/sockptr.h:49 [inline]
 BUG: KASAN: slab-out-of-bounds in copy_from_sockptr include/linux/sockptr.h:55 [inline]
 BUG: KASAN: slab-out-of-bounds in nfc_llcp_setsockopt+0x6c2/0x850 net/nfc/llcp_sock.c:255
Read of size 4 at addr ffff88801caa1ec3 by task syz-executor459/5078

CPU: 0 PID: 5078 Comm: syz-executor459 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
 <TASK>
  __dump_stack lib/dump_stack.c:88 [inline]
  dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
  print_address_description mm/kasan/report.c:377 [inline]
  print_report+0x169/0x550 mm/kasan/report.c:488
  kasan_report+0x143/0x180 mm/kasan/report.c:601
  copy_from_sockptr_offset include/linux/sockptr.h:49 [inline]
  copy_from_sockptr include/linux/sockptr.h:55 [inline]
  nfc_llcp_setsockopt+0x6c2/0x850 net/nfc/llcp_sock.c:255
  do_sock_setsockopt+0x3b1/0x720 net/socket.c:2311
  __sys_setsockopt+0x1ae/0x250 net/socket.c:2334
  __do_sys_setsockopt net/socket.c:2343 [inline]
  __se_sys_setsockopt net/socket.c:2340 [inline]
  __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2340
 do_syscall_64+0xfd/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f7fac07fd89
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 91 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff660eb788 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f7fac07fd89
RDX: 0000000000000000 RSI: 0000000000000118 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000002 R09: 0000000000000000
R10: 0000000020000a80 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240408082845.3957374-4-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/nfc/llcp_sock.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c
index 819157bbb5a2c..d5344563e525c 100644
--- a/net/nfc/llcp_sock.c
+++ b/net/nfc/llcp_sock.c
@@ -252,10 +252,10 @@ static int nfc_llcp_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 
-		if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
-			err = -EFAULT;
+		err = copy_safe_from_sockptr(&opt, sizeof(opt),
+					     optval, optlen);
+		if (err)
 			break;
-		}
 
 		if (opt > LLCP_MAX_RW) {
 			err = -EINVAL;
@@ -274,10 +274,10 @@ static int nfc_llcp_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 
-		if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
-			err = -EFAULT;
+		err = copy_safe_from_sockptr(&opt, sizeof(opt),
+					     optval, optlen);
+		if (err)
 			break;
-		}
 
 		if (opt > LLCP_MAX_MIUX) {
 			err = -EINVAL;
-- 
2.43.0

[PATCH AUTOSEL 6.8 26/43] drm/amdgpu: Refine IB schedule error logging

[Sasha Levin]

From: Lijo Lazar <lijo.lazar@amd.com>

[ Upstream commit 4b18a91faf1752f9bd69a4ed3aed2c8f6e5b0528 ]

Downgrade to debug information when IBs are skipped. Also, use dev_* to
identify the device.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@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_job.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
index 71a5cf37b472d..0b8c6581b62c0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
@@ -300,12 +300,15 @@ static struct dma_fence *amdgpu_job_run(struct drm_sched_job *sched_job)
 		dma_fence_set_error(finished, -ECANCELED);
 
 	if (finished->error < 0) {
-		DRM_INFO("Skip scheduling IBs!\n");
+		dev_dbg(adev->dev, "Skip scheduling IBs in ring(%s)",
+			ring->name);
 	} else {
 		r = amdgpu_ib_schedule(ring, job->num_ibs, job->ibs, job,
 				       &fence);
 		if (r)
-			DRM_ERROR("Error scheduling IBs (%d)\n", r);
+			dev_err(adev->dev,
+				"Error scheduling IBs (%d) in ring(%s)", r,
+				ring->name);
 	}
 
 	job->job_run_counter++;
-- 
2.43.0

[PATCH AUTOSEL 6.8 27/43] drm/amd/display: add DCN 351 version for microcode load

[Sasha Levin]

From: Li Ma <li.ma@amd.com>

[ Upstream commit d4396924c3d44f34d0643f650e70892e07f3677f ]

There is a new DCN veriosn 3.5.1 need to load

Signed-off-by: Li Ma <li.ma@amd.com>
Reviewed-by: Yifan Zhang <yifan1.zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 718e533ab46dd..0d3e553647993 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -147,6 +147,9 @@ MODULE_FIRMWARE(FIRMWARE_NAVI12_DMCU);
 #define FIRMWARE_DCN_35_DMUB "amdgpu/dcn_3_5_dmcub.bin"
 MODULE_FIRMWARE(FIRMWARE_DCN_35_DMUB);
 
+#define FIRMWARE_DCN_351_DMUB "amdgpu/dcn_3_5_1_dmcub.bin"
+MODULE_FIRMWARE(FIRMWARE_DCN_351_DMUB);
+
 /* Number of bytes in PSP header for firmware. */
 #define PSP_HEADER_BYTES 0x100
 
@@ -4776,6 +4779,9 @@ static int dm_init_microcode(struct amdgpu_device *adev)
 	case IP_VERSION(3, 5, 0):
 		fw_name_dmub = FIRMWARE_DCN_35_DMUB;
 		break;
+	case IP_VERSION(3, 5, 1):
+		fw_name_dmub = FIRMWARE_DCN_351_DMUB;
+		break;
 	default:
 		/* ASIC doesn't support DMUB. */
 		return 0;
-- 
2.43.0

[PATCH AUTOSEL 6.8 28/43] drm/amdgpu: add smu 14.0.1 discovery support

[Sasha Levin]

From: Yifan Zhang <yifan1.zhang@amd.com>

[ Upstream commit 533eefb9be76c3b23d220ee18edfda8eb56cefff ]

This patch to add smu 14.0.1 support

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Yifan Zhang <yifan1.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/amdgpu_discovery.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index 4f9900779ef9e..ff28265838ec0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -1867,6 +1867,7 @@ static int amdgpu_discovery_set_smu_ip_blocks(struct amdgpu_device *adev)
 		amdgpu_device_ip_block_add(adev, &smu_v13_0_ip_block);
 		break;
 	case IP_VERSION(14, 0, 0):
+	case IP_VERSION(14, 0, 1):
 		amdgpu_device_ip_block_add(adev, &smu_v14_0_ip_block);
 		break;
 	default:
-- 
2.43.0

[PATCH AUTOSEL 6.8 29/43] drm/amdgpu: implement IRQ_STATE_ENABLE for SDMA v4.4.2

[Sasha Levin]

From: Tao Zhou <tao.zhou1@amd.com>

[ Upstream commit f886b49feaae30acd599e37d4284836024b0f3ed ]

SDMA_CNTL is not set in some cases, driver configures it by itself.

v2: simplify code

Signed-off-by: Tao Zhou <tao.zhou1@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/sdma_v4_4_2.c | 16 +++-------------
 1 file changed, 3 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c
index 45a67a77455ee..17eb160b7bcea 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c
@@ -1600,19 +1600,9 @@ static int sdma_v4_4_2_set_ecc_irq_state(struct amdgpu_device *adev,
 	u32 sdma_cntl;
 
 	sdma_cntl = RREG32_SDMA(type, regSDMA_CNTL);
-	switch (state) {
-	case AMDGPU_IRQ_STATE_DISABLE:
-		sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA_CNTL,
-					  DRAM_ECC_INT_ENABLE, 0);
-		WREG32_SDMA(type, regSDMA_CNTL, sdma_cntl);
-		break;
-	/* sdma ecc interrupt is enabled by default
-	 * driver doesn't need to do anything to
-	 * enable the interrupt */
-	case AMDGPU_IRQ_STATE_ENABLE:
-	default:
-		break;
-	}
+	sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA_CNTL, DRAM_ECC_INT_ENABLE,
+					state == AMDGPU_IRQ_STATE_ENABLE ? 1 : 0);
+	WREG32_SDMA(type, regSDMA_CNTL, sdma_cntl);
 
 	return 0;
 }
-- 
2.43.0

[PATCH AUTOSEL 6.8 30/43] drm/amd/display: Skip on writeback when it's not applicable

[Sasha Levin]

From: Alex Hung <alex.hung@amd.com>

[ Upstream commit ecedd99a9369fb5cde601ae9abd58bca2739f1ae ]

[WHY]
dynamic memory safety error detector (KASAN) catches and generates error
messages "BUG: KASAN: slab-out-of-bounds" as writeback connector does not
support certain features which are not initialized.

[HOW]
Skip them when connector type is DRM_MODE_CONNECTOR_WRITEBACK.

Link: https://gitlab.freedesktop.org/drm/amd/-/issues/3199
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Acked-by: Roman Li <roman.li@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 0d3e553647993..9044214dfdbdf 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -3028,6 +3028,10 @@ static int dm_resume(void *handle)
 	/* Do mst topology probing after resuming cached state*/
 	drm_connector_list_iter_begin(ddev, &iter);
 	drm_for_each_connector_iter(connector, &iter) {
+
+		if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
+			continue;
+
 		aconnector = to_amdgpu_dm_connector(connector);
 		if (aconnector->dc_link->type != dc_connection_mst_branch ||
 		    aconnector->mst_root)
@@ -5879,6 +5883,9 @@ get_highest_refresh_rate_mode(struct amdgpu_dm_connector *aconnector,
 		&aconnector->base.probed_modes :
 		&aconnector->base.modes;
 
+	if (aconnector->base.connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
+		return NULL;
+
 	if (aconnector->freesync_vid_base.clock != 0)
 		return &aconnector->freesync_vid_base;
 
@@ -8633,10 +8640,10 @@ static void amdgpu_dm_commit_audio(struct drm_device *dev,
 		if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
 			continue;
 
+notify:
 		if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
 			continue;
 
-notify:
 		aconnector = to_amdgpu_dm_connector(connector);
 
 		mutex_lock(&adev->dm.audio_lock);
-- 
2.43.0

[PATCH AUTOSEL 6.8 31/43] drm/amd/pm: fix the high voltage issue after unload

[Sasha Levin]

From: Kenneth Feng <kenneth.feng@amd.com>

[ Upstream commit 3818708e9c9712e2ba4006bc23502ee7b031bd3f ]

fix the high voltage issue after unload on smu 13.0.10

Signed-off-by: Kenneth Feng <kenneth.feng@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/amdgpu_device.c    | 26 ++++++++++--------
 drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c     | 27 +++++++++++++++++--
 drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h |  1 +
 .../drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c  |  8 +++++-
 4 files changed, 48 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index d0afb9ba3789c..14d878675586a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -4120,18 +4120,22 @@ int amdgpu_device_init(struct amdgpu_device *adev,
 					adev->ip_blocks[i].status.hw = true;
 				}
 			}
+		} else if (amdgpu_ip_version(adev, MP1_HWIP, 0) == IP_VERSION(13, 0, 10) &&
+				   !amdgpu_device_has_display_hardware(adev)) {
+					r = psp_gpu_reset(adev);
 		} else {
-			tmp = amdgpu_reset_method;
-			/* It should do a default reset when loading or reloading the driver,
-			 * regardless of the module parameter reset_method.
-			 */
-			amdgpu_reset_method = AMD_RESET_METHOD_NONE;
-			r = amdgpu_asic_reset(adev);
-			amdgpu_reset_method = tmp;
-			if (r) {
-				dev_err(adev->dev, "asic reset on init failed\n");
-				goto failed;
-			}
+				tmp = amdgpu_reset_method;
+				/* It should do a default reset when loading or reloading the driver,
+				 * regardless of the module parameter reset_method.
+				 */
+				amdgpu_reset_method = AMD_RESET_METHOD_NONE;
+				r = amdgpu_asic_reset(adev);
+				amdgpu_reset_method = tmp;
+		}
+
+		if (r) {
+		  dev_err(adev->dev, "asic reset on init failed\n");
+		  goto failed;
 		}
 	}
 
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index 0ad947df777ab..ba1597b01a970 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -734,7 +734,7 @@ static int smu_early_init(void *handle)
 	smu->adev = adev;
 	smu->pm_enabled = !!amdgpu_dpm;
 	smu->is_apu = false;
-	smu->smu_baco.state = SMU_BACO_STATE_EXIT;
+	smu->smu_baco.state = SMU_BACO_STATE_NONE;
 	smu->smu_baco.platform_support = false;
 	smu->user_dpm_profile.fan_mode = -1;
 
@@ -1954,10 +1954,25 @@ static int smu_smc_hw_cleanup(struct smu_context *smu)
 	return 0;
 }
 
+static int smu_reset_mp1_state(struct smu_context *smu)
+{
+	struct amdgpu_device *adev = smu->adev;
+	int ret = 0;
+
+	if ((!adev->in_runpm) && (!adev->in_suspend) &&
+		(!amdgpu_in_reset(adev)) && amdgpu_ip_version(adev, MP1_HWIP, 0) ==
+									IP_VERSION(13, 0, 10) &&
+		!amdgpu_device_has_display_hardware(adev))
+		ret = smu_set_mp1_state(smu, PP_MP1_STATE_UNLOAD);
+
+	return ret;
+}
+
 static int smu_hw_fini(void *handle)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 	struct smu_context *smu = adev->powerplay.pp_handle;
+	int ret;
 
 	if (amdgpu_sriov_vf(adev) && !amdgpu_sriov_is_pp_one_vf(adev))
 		return 0;
@@ -1975,7 +1990,15 @@ static int smu_hw_fini(void *handle)
 
 	adev->pm.dpm_enabled = false;
 
-	return smu_smc_hw_cleanup(smu);
+	ret = smu_smc_hw_cleanup(smu);
+	if (ret)
+		return ret;
+
+	ret = smu_reset_mp1_state(smu);
+	if (ret)
+		return ret;
+
+	return 0;
 }
 
 static void smu_late_fini(void *handle)
diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
index 66e84defd0b6e..2aa4fea873147 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
@@ -424,6 +424,7 @@ enum smu_reset_mode {
 enum smu_baco_state {
 	SMU_BACO_STATE_ENTER = 0,
 	SMU_BACO_STATE_EXIT,
+	SMU_BACO_STATE_NONE,
 };
 
 struct smu_baco_context {
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
index 9c03296f92cdd..67117ced7c6ae 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
@@ -2751,7 +2751,13 @@ static int smu_v13_0_0_set_mp1_state(struct smu_context *smu,
 
 	switch (mp1_state) {
 	case PP_MP1_STATE_UNLOAD:
-		ret = smu_cmn_set_mp1_state(smu, mp1_state);
+		ret = smu_cmn_send_smc_msg_with_param(smu,
+											  SMU_MSG_PrepareMp1ForUnload,
+											  0x55, NULL);
+
+		if (!ret && smu->smu_baco.state == SMU_BACO_STATE_EXIT)
+			ret = smu_v13_0_disable_pmfw_state(smu);
+
 		break;
 	default:
 		/* Ignore others */
-- 
2.43.0

[PATCH AUTOSEL 6.8 32/43] drm/amdgpu: Fix VCN allocation in CPX partition

[Sasha Levin]

From: Lijo Lazar <lijo.lazar@amd.com>

[ Upstream commit f7e232de51bb1b45646e5b7dc4ebcf13510f2630 ]

VCN need not be shared in CPX mode always for all GFX 9.4.3 SOC SKUs. In
certain configs, VCN instance can be exclusively allocated to a
partition even under CPX mode.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/aqua_vanjaram.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram.c b/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram.c
index d6f808acfb17b..fbb43ae7624f4 100644
--- a/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram.c
+++ b/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram.c
@@ -62,6 +62,11 @@ void aqua_vanjaram_doorbell_index_init(struct amdgpu_device *adev)
 	adev->doorbell_index.max_assignment = AMDGPU_DOORBELL_LAYOUT1_MAX_ASSIGNMENT << 1;
 }
 
+static bool aqua_vanjaram_xcp_vcn_shared(struct amdgpu_device *adev)
+{
+	return (adev->xcp_mgr->num_xcps > adev->vcn.num_vcn_inst);
+}
+
 static void aqua_vanjaram_set_xcp_id(struct amdgpu_device *adev,
 			     uint32_t inst_idx, struct amdgpu_ring *ring)
 {
@@ -87,7 +92,7 @@ static void aqua_vanjaram_set_xcp_id(struct amdgpu_device *adev,
 	case AMDGPU_RING_TYPE_VCN_ENC:
 	case AMDGPU_RING_TYPE_VCN_JPEG:
 		ip_blk = AMDGPU_XCP_VCN;
-		if (adev->xcp_mgr->mode == AMDGPU_CPX_PARTITION_MODE)
+		if (aqua_vanjaram_xcp_vcn_shared(adev))
 			inst_mask = 1 << (inst_idx * 2);
 		break;
 	default:
@@ -140,10 +145,12 @@ static int aqua_vanjaram_xcp_sched_list_update(
 
 		aqua_vanjaram_xcp_gpu_sched_update(adev, ring, ring->xcp_id);
 
-		/* VCN is shared by two partitions under CPX MODE */
+		/* VCN may be shared by two partitions under CPX MODE in certain
+		 * configs.
+		 */
 		if ((ring->funcs->type == AMDGPU_RING_TYPE_VCN_ENC ||
-			ring->funcs->type == AMDGPU_RING_TYPE_VCN_JPEG) &&
-			adev->xcp_mgr->mode == AMDGPU_CPX_PARTITION_MODE)
+		     ring->funcs->type == AMDGPU_RING_TYPE_VCN_JPEG) &&
+		    aqua_vanjaram_xcp_vcn_shared(adev))
 			aqua_vanjaram_xcp_gpu_sched_update(adev, ring, ring->xcp_id + 1);
 	}
 
-- 
2.43.0

[PATCH AUTOSEL 6.8 33/43] amd/amdkfd: sync all devices to wait all processes being evicted

[Sasha Levin]

From: Zhigang Luo <Zhigang.Luo@amd.com>

[ Upstream commit d06af584be5a769d124b7302b32a033e9559761d ]

If there are more than one device doing reset in parallel, the first
device will call kfd_suspend_all_processes() to evict all processes
on all devices, this call takes time to finish. other device will
start reset and recover without waiting. if the process has not been
evicted before doing recover, it will be restored, then caused page
fault.

Signed-off-by: Zhigang Luo <Zhigang.Luo@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdkfd/kfd_device.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index 0a9cf9dfc2243..fcf6558d019e5 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -944,7 +944,6 @@ void kgd2kfd_suspend(struct kfd_dev *kfd, bool run_pm)
 {
 	struct kfd_node *node;
 	int i;
-	int count;
 
 	if (!kfd->init_complete)
 		return;
@@ -952,12 +951,10 @@ void kgd2kfd_suspend(struct kfd_dev *kfd, bool run_pm)
 	/* for runtime suspend, skip locking kfd */
 	if (!run_pm) {
 		mutex_lock(&kfd_processes_mutex);
-		count = ++kfd_locked;
-		mutex_unlock(&kfd_processes_mutex);
-
 		/* For first KFD device suspend all the KFD processes */
-		if (count == 1)
+		if (++kfd_locked == 1)
 			kfd_suspend_all_processes();
+		mutex_unlock(&kfd_processes_mutex);
 	}
 
 	for (i = 0; i < kfd->num_nodes; i++) {
@@ -968,7 +965,7 @@ void kgd2kfd_suspend(struct kfd_dev *kfd, bool run_pm)
 
 int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm)
 {
-	int ret, count, i;
+	int ret, i;
 
 	if (!kfd->init_complete)
 		return 0;
@@ -982,12 +979,10 @@ int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm)
 	/* for runtime resume, skip unlocking kfd */
 	if (!run_pm) {
 		mutex_lock(&kfd_processes_mutex);
-		count = --kfd_locked;
-		mutex_unlock(&kfd_processes_mutex);
-
-		WARN_ONCE(count < 0, "KFD suspend / resume ref. error");
-		if (count == 0)
+		if (--kfd_locked == 0)
 			ret = kfd_resume_all_processes();
+		WARN_ONCE(kfd_locked < 0, "KFD suspend / resume ref. error");
+		mutex_unlock(&kfd_processes_mutex);
 	}
 
 	return ret;
-- 
2.43.0

[PATCH AUTOSEL 6.8 34/43] selftests: timers: Fix valid-adjtimex signed left-shift undefined behavior

[Sasha Levin]

From: John Stultz <jstultz@google.com>

[ Upstream commit 076361362122a6d8a4c45f172ced5576b2d4a50d ]

The struct adjtimex freq field takes a signed value who's units are in
shifted (<<16) parts-per-million.

Unfortunately for negative adjustments, the straightforward use of:

  freq = ppm << 16 trips undefined behavior warnings with clang:

valid-adjtimex.c:66:6: warning: shifting a negative signed value is undefined [-Wshift-negative-value]
        -499<<16,
        ~~~~^
valid-adjtimex.c:67:6: warning: shifting a negative signed value is undefined [-Wshift-negative-value]
        -450<<16,
        ~~~~^
..

Fix it by using a multiply by (1 << 16) instead of shifting negative values
in the valid-adjtimex test case. Align the values for better readability.

Reported-by: Lee Jones <joneslee@google.com>
Reported-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Signed-off-by: John Stultz <jstultz@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Link: https://lore.kernel.org/r/20240409202222.2830476-1-jstultz@google.com
Link: https://lore.kernel.org/lkml/0c6d4f0d-2064-4444-986b-1d1ed782135f@collabora.com/
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../testing/selftests/timers/valid-adjtimex.c | 73 +++++++++----------
 1 file changed, 36 insertions(+), 37 deletions(-)

diff --git a/tools/testing/selftests/timers/valid-adjtimex.c b/tools/testing/selftests/timers/valid-adjtimex.c
index 48b9a803235a8..d13ebde203221 100644
--- a/tools/testing/selftests/timers/valid-adjtimex.c
+++ b/tools/testing/selftests/timers/valid-adjtimex.c
@@ -21,9 +21,6 @@
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *   GNU General Public License for more details.
  */
-
-
-
 #include <stdio.h>
 #include <stdlib.h>
 #include <time.h>
@@ -62,45 +59,47 @@ int clear_time_state(void)
 #define NUM_FREQ_OUTOFRANGE 4
 #define NUM_FREQ_INVALID 2
 
+#define SHIFTED_PPM (1 << 16)
+
 long valid_freq[NUM_FREQ_VALID] = {
-	-499<<16,
-	-450<<16,
-	-400<<16,
-	-350<<16,
-	-300<<16,
-	-250<<16,
-	-200<<16,
-	-150<<16,
-	-100<<16,
-	-75<<16,
-	-50<<16,
-	-25<<16,
-	-10<<16,
-	-5<<16,
-	-1<<16,
+	 -499 * SHIFTED_PPM,
+	 -450 * SHIFTED_PPM,
+	 -400 * SHIFTED_PPM,
+	 -350 * SHIFTED_PPM,
+	 -300 * SHIFTED_PPM,
+	 -250 * SHIFTED_PPM,
+	 -200 * SHIFTED_PPM,
+	 -150 * SHIFTED_PPM,
+	 -100 * SHIFTED_PPM,
+	  -75 * SHIFTED_PPM,
+	  -50 * SHIFTED_PPM,
+	  -25 * SHIFTED_PPM,
+	  -10 * SHIFTED_PPM,
+	   -5 * SHIFTED_PPM,
+	   -1 * SHIFTED_PPM,
 	-1000,
-	1<<16,
-	5<<16,
-	10<<16,
-	25<<16,
-	50<<16,
-	75<<16,
-	100<<16,
-	150<<16,
-	200<<16,
-	250<<16,
-	300<<16,
-	350<<16,
-	400<<16,
-	450<<16,
-	499<<16,
+	    1 * SHIFTED_PPM,
+	    5 * SHIFTED_PPM,
+	   10 * SHIFTED_PPM,
+	   25 * SHIFTED_PPM,
+	   50 * SHIFTED_PPM,
+	   75 * SHIFTED_PPM,
+	  100 * SHIFTED_PPM,
+	  150 * SHIFTED_PPM,
+	  200 * SHIFTED_PPM,
+	  250 * SHIFTED_PPM,
+	  300 * SHIFTED_PPM,
+	  350 * SHIFTED_PPM,
+	  400 * SHIFTED_PPM,
+	  450 * SHIFTED_PPM,
+	  499 * SHIFTED_PPM,
 };
 
 long outofrange_freq[NUM_FREQ_OUTOFRANGE] = {
-	-1000<<16,
-	-550<<16,
-	550<<16,
-	1000<<16,
+	-1000 * SHIFTED_PPM,
+	 -550 * SHIFTED_PPM,
+	  550 * SHIFTED_PPM,
+	 1000 * SHIFTED_PPM,
 };
 
 #define LONG_MAX (~0UL>>1)
-- 
2.43.0

[PATCH AUTOSEL 6.8 35/43] Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails

[Sasha Levin]

From: Rick Edgecombe <rick.p.edgecombe@intel.com>

[ Upstream commit 03f5a999adba062456c8c818a683beb1b498983a ]

In CoCo VMs it is possible for the untrusted host to cause
set_memory_encrypted() or set_memory_decrypted() to fail such that an
error is returned and the resulting memory is shared. Callers need to
take care to handle these errors to avoid returning decrypted (shared)
memory to the page allocator, which could lead to functional or security
issues.

VMBus code could free decrypted pages if set_memory_encrypted()/decrypted()
fails. Leak the pages if this happens.

Signed-off-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Signed-off-by: Michael Kelley <mhklinux@outlook.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Link: https://lore.kernel.org/r/20240311161558.1310-2-mhklinux@outlook.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20240311161558.1310-2-mhklinux@outlook.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hv/connection.c | 29 ++++++++++++++++++++++-------
 1 file changed, 22 insertions(+), 7 deletions(-)

diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index 3cabeeabb1cac..f001ae880e1db 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -237,8 +237,17 @@ int vmbus_connect(void)
 				vmbus_connection.monitor_pages[0], 1);
 	ret |= set_memory_decrypted((unsigned long)
 				vmbus_connection.monitor_pages[1], 1);
-	if (ret)
+	if (ret) {
+		/*
+		 * If set_memory_decrypted() fails, the encryption state
+		 * of the memory is unknown. So leak the memory instead
+		 * of risking returning decrypted memory to the free list.
+		 * For simplicity, always handle both pages the same.
+		 */
+		vmbus_connection.monitor_pages[0] = NULL;
+		vmbus_connection.monitor_pages[1] = NULL;
 		goto cleanup;
+	}
 
 	/*
 	 * Set_memory_decrypted() will change the memory contents if
@@ -337,13 +346,19 @@ void vmbus_disconnect(void)
 		vmbus_connection.int_page = NULL;
 	}
 
-	set_memory_encrypted((unsigned long)vmbus_connection.monitor_pages[0], 1);
-	set_memory_encrypted((unsigned long)vmbus_connection.monitor_pages[1], 1);
+	if (vmbus_connection.monitor_pages[0]) {
+		if (!set_memory_encrypted(
+			(unsigned long)vmbus_connection.monitor_pages[0], 1))
+			hv_free_hyperv_page(vmbus_connection.monitor_pages[0]);
+		vmbus_connection.monitor_pages[0] = NULL;
+	}
 
-	hv_free_hyperv_page(vmbus_connection.monitor_pages[0]);
-	hv_free_hyperv_page(vmbus_connection.monitor_pages[1]);
-	vmbus_connection.monitor_pages[0] = NULL;
-	vmbus_connection.monitor_pages[1] = NULL;
+	if (vmbus_connection.monitor_pages[1]) {
+		if (!set_memory_encrypted(
+			(unsigned long)vmbus_connection.monitor_pages[1], 1))
+			hv_free_hyperv_page(vmbus_connection.monitor_pages[1]);
+		vmbus_connection.monitor_pages[1] = NULL;
+	}
 }
 
 /*
-- 
2.43.0

[PATCH AUTOSEL 6.8 36/43] Drivers: hv: vmbus: Track decrypted status in vmbus_gpadl

[Sasha Levin]

From: Rick Edgecombe <rick.p.edgecombe@intel.com>

[ Upstream commit 211f514ebf1ef5de37b1cf6df9d28a56cfd242ca ]

In CoCo VMs it is possible for the untrusted host to cause
set_memory_encrypted() or set_memory_decrypted() to fail such that an
error is returned and the resulting memory is shared. Callers need to
take care to handle these errors to avoid returning decrypted (shared)
memory to the page allocator, which could lead to functional or security
issues.

In order to make sure callers of vmbus_establish_gpadl() and
vmbus_teardown_gpadl() don't return decrypted/shared pages to
allocators, add a field in struct vmbus_gpadl to keep track of the
decryption status of the buffers. This will allow the callers to
know if they should free or leak the pages.

Signed-off-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Signed-off-by: Michael Kelley <mhklinux@outlook.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Link: https://lore.kernel.org/r/20240311161558.1310-3-mhklinux@outlook.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20240311161558.1310-3-mhklinux@outlook.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hv/channel.c   | 25 +++++++++++++++++++++----
 include/linux/hyperv.h |  1 +
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index adbf674355b2b..98259b4925029 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -436,9 +436,18 @@ static int __vmbus_establish_gpadl(struct vmbus_channel *channel,
 		(atomic_inc_return(&vmbus_connection.next_gpadl_handle) - 1);
 
 	ret = create_gpadl_header(type, kbuffer, size, send_offset, &msginfo);
-	if (ret)
+	if (ret) {
+		gpadl->decrypted = false;
 		return ret;
+	}
 
+	/*
+	 * Set the "decrypted" flag to true for the set_memory_decrypted()
+	 * success case. In the failure case, the encryption state of the
+	 * memory is unknown. Leave "decrypted" as true to ensure the
+	 * memory will be leaked instead of going back on the free list.
+	 */
+	gpadl->decrypted = true;
 	ret = set_memory_decrypted((unsigned long)kbuffer,
 				   PFN_UP(size));
 	if (ret) {
@@ -527,9 +536,15 @@ static int __vmbus_establish_gpadl(struct vmbus_channel *channel,
 
 	kfree(msginfo);
 
-	if (ret)
-		set_memory_encrypted((unsigned long)kbuffer,
-				     PFN_UP(size));
+	if (ret) {
+		/*
+		 * If set_memory_encrypted() fails, the decrypted flag is
+		 * left as true so the memory is leaked instead of being
+		 * put back on the free list.
+		 */
+		if (!set_memory_encrypted((unsigned long)kbuffer, PFN_UP(size)))
+			gpadl->decrypted = false;
+	}
 
 	return ret;
 }
@@ -850,6 +865,8 @@ int vmbus_teardown_gpadl(struct vmbus_channel *channel, struct vmbus_gpadl *gpad
 	if (ret)
 		pr_warn("Fail to set mem host visibility in GPADL teardown %d.\n", ret);
 
+	gpadl->decrypted = ret;
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(vmbus_teardown_gpadl);
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 6ef0557b4bff8..96ceb4095425e 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -832,6 +832,7 @@ struct vmbus_gpadl {
 	u32 gpadl_handle;
 	u32 size;
 	void *buffer;
+	bool decrypted;
 };
 
 struct vmbus_channel {
-- 
2.43.0

[PATCH AUTOSEL 6.8 37/43] hv_netvsc: Don't free decrypted memory

[Sasha Levin]

From: Rick Edgecombe <rick.p.edgecombe@intel.com>

[ Upstream commit bbf9ac34677b57506a13682b31a2a718934c0e31 ]

In CoCo VMs it is possible for the untrusted host to cause
set_memory_encrypted() or set_memory_decrypted() to fail such that an
error is returned and the resulting memory is shared. Callers need to
take care to handle these errors to avoid returning decrypted (shared)
memory to the page allocator, which could lead to functional or security
issues.

The netvsc driver could free decrypted/shared pages if
set_memory_decrypted() fails. Check the decrypted field in the gpadl
to decide whether to free the memory.

Signed-off-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Signed-off-by: Michael Kelley <mhklinux@outlook.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Link: https://lore.kernel.org/r/20240311161558.1310-4-mhklinux@outlook.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20240311161558.1310-4-mhklinux@outlook.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/hyperv/netvsc.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index a6fcbda64ecc6..2b6ec979a62f2 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -154,8 +154,11 @@ static void free_netvsc_device(struct rcu_head *head)
 	int i;
 
 	kfree(nvdev->extension);
-	vfree(nvdev->recv_buf);
-	vfree(nvdev->send_buf);
+
+	if (!nvdev->recv_buf_gpadl_handle.decrypted)
+		vfree(nvdev->recv_buf);
+	if (!nvdev->send_buf_gpadl_handle.decrypted)
+		vfree(nvdev->send_buf);
 	bitmap_free(nvdev->send_section_map);
 
 	for (i = 0; i < VRSS_CHANNEL_MAX; i++) {
-- 
2.43.0

[PATCH AUTOSEL 6.8 38/43] uio_hv_generic: Don't free decrypted memory

[Sasha Levin]

From: Rick Edgecombe <rick.p.edgecombe@intel.com>

[ Upstream commit 3d788b2fbe6a1a1a9e3db09742b90809d51638b7 ]

In CoCo VMs it is possible for the untrusted host to cause
set_memory_encrypted() or set_memory_decrypted() to fail such that an
error is returned and the resulting memory is shared. Callers need to
take care to handle these errors to avoid returning decrypted (shared)
memory to the page allocator, which could lead to functional or security
issues.

The VMBus device UIO driver could free decrypted/shared pages if
set_memory_decrypted() fails. Check the decrypted field in the gpadl
to decide whether to free the memory.

Signed-off-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Signed-off-by: Michael Kelley <mhklinux@outlook.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Link: https://lore.kernel.org/r/20240311161558.1310-5-mhklinux@outlook.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20240311161558.1310-5-mhklinux@outlook.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/uio/uio_hv_generic.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/uio/uio_hv_generic.c b/drivers/uio/uio_hv_generic.c
index 20d9762331bd7..6be3462b109ff 100644
--- a/drivers/uio/uio_hv_generic.c
+++ b/drivers/uio/uio_hv_generic.c
@@ -181,12 +181,14 @@ hv_uio_cleanup(struct hv_device *dev, struct hv_uio_private_data *pdata)
 {
 	if (pdata->send_gpadl.gpadl_handle) {
 		vmbus_teardown_gpadl(dev->channel, &pdata->send_gpadl);
-		vfree(pdata->send_buf);
+		if (!pdata->send_gpadl.decrypted)
+			vfree(pdata->send_buf);
 	}
 
 	if (pdata->recv_gpadl.gpadl_handle) {
 		vmbus_teardown_gpadl(dev->channel, &pdata->recv_gpadl);
-		vfree(pdata->recv_buf);
+		if (!pdata->recv_gpadl.decrypted)
+			vfree(pdata->recv_buf);
 	}
 }
 
@@ -295,7 +297,8 @@ hv_uio_probe(struct hv_device *dev,
 	ret = vmbus_establish_gpadl(channel, pdata->recv_buf,
 				    RECV_BUFFER_SIZE, &pdata->recv_gpadl);
 	if (ret) {
-		vfree(pdata->recv_buf);
+		if (!pdata->recv_gpadl.decrypted)
+			vfree(pdata->recv_buf);
 		goto fail_close;
 	}
 
@@ -317,7 +320,8 @@ hv_uio_probe(struct hv_device *dev,
 	ret = vmbus_establish_gpadl(channel, pdata->send_buf,
 				    SEND_BUFFER_SIZE, &pdata->send_gpadl);
 	if (ret) {
-		vfree(pdata->send_buf);
+		if (!pdata->send_gpadl.decrypted)
+			vfree(pdata->send_buf);
 		goto fail_close;
 	}
 
-- 
2.43.0

[PATCH AUTOSEL 6.8 39/43] Drivers: hv: vmbus: Don't free ring buffers that couldn't be re-encrypted

[Sasha Levin]

From: Michael Kelley <mhklinux@outlook.com>

[ Upstream commit 30d18df6567be09c1433e81993e35e3da573ac48 ]

In CoCo VMs it is possible for the untrusted host to cause
set_memory_encrypted() or set_memory_decrypted() to fail such that an
error is returned and the resulting memory is shared. Callers need to
take care to handle these errors to avoid returning decrypted (shared)
memory to the page allocator, which could lead to functional or security
issues.

The VMBus ring buffer code could free decrypted/shared pages if
set_memory_decrypted() fails. Check the decrypted field in the struct
vmbus_gpadl for the ring buffers to decide whether to free the memory.

Signed-off-by: Michael Kelley <mhklinux@outlook.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Link: https://lore.kernel.org/r/20240311161558.1310-6-mhklinux@outlook.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20240311161558.1310-6-mhklinux@outlook.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hv/channel.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 98259b4925029..fb8cd8469328e 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -153,7 +153,9 @@ void vmbus_free_ring(struct vmbus_channel *channel)
 	hv_ringbuffer_cleanup(&channel->inbound);
 
 	if (channel->ringbuffer_page) {
-		__free_pages(channel->ringbuffer_page,
+		/* In a CoCo VM leak the memory if it didn't get re-encrypted */
+		if (!channel->ringbuffer_gpadlhandle.decrypted)
+			__free_pages(channel->ringbuffer_page,
 			     get_order(channel->ringbuffer_pagecount
 				       << PAGE_SHIFT));
 		channel->ringbuffer_page = NULL;
-- 
2.43.0

[PATCH AUTOSEL 6.8 40/43] drm/xe/xe_migrate: Cast to output precision before multiplying operands

[Sasha Levin]

From: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>

[ Upstream commit 9cb46b31f3d08ed3fce86349e8c12f96d7c88717 ]

Addressing potential overflow in result of  multiplication of two lower
precision (u32) operands before widening it to higher precision
(u64).

-v2
Fix commit message and description. (Rodrigo)

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240401175300.3823653-1-himal.prasad.ghimiray@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit 34820967ae7b45411f8f4f737c2d63b0c608e0d7)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/xe/xe_migrate.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_migrate.c b/drivers/gpu/drm/xe/xe_migrate.c
index 70480c3056021..7a6ad3469d748 100644
--- a/drivers/gpu/drm/xe/xe_migrate.c
+++ b/drivers/gpu/drm/xe/xe_migrate.c
@@ -216,7 +216,7 @@ static int xe_migrate_prepare_vm(struct xe_tile *tile, struct xe_migrate *m,
 		if (vm->flags & XE_VM_FLAG_64K && level == 1)
 			flags = XE_PDE_64K;
 
-		entry = vm->pt_ops->pde_encode_bo(bo, map_ofs + (level - 1) *
+		entry = vm->pt_ops->pde_encode_bo(bo, map_ofs + (u64)(level - 1) *
 						  XE_PAGE_SIZE, pat_index);
 		xe_map_wr(xe, &bo->vmap, map_ofs + XE_PAGE_SIZE * level, u64,
 			  entry | flags);
@@ -224,7 +224,7 @@ static int xe_migrate_prepare_vm(struct xe_tile *tile, struct xe_migrate *m,
 
 	/* Write PDE's that point to our BO. */
 	for (i = 0; i < num_entries - num_level; i++) {
-		entry = vm->pt_ops->pde_encode_bo(bo, i * XE_PAGE_SIZE,
+		entry = vm->pt_ops->pde_encode_bo(bo, (u64)i * XE_PAGE_SIZE,
 						  pat_index);
 
 		xe_map_wr(xe, &bo->vmap, map_ofs + XE_PAGE_SIZE +
@@ -280,7 +280,7 @@ static int xe_migrate_prepare_vm(struct xe_tile *tile, struct xe_migrate *m,
 #define VM_SA_UPDATE_UNIT_SIZE		(XE_PAGE_SIZE / NUM_VMUSA_UNIT_PER_PAGE)
 #define NUM_VMUSA_WRITES_PER_UNIT	(VM_SA_UPDATE_UNIT_SIZE / sizeof(u64))
 	drm_suballoc_manager_init(&m->vm_update_sa,
-				  (map_ofs / XE_PAGE_SIZE - NUM_KERNEL_PDE) *
+				  (size_t)(map_ofs / XE_PAGE_SIZE - NUM_KERNEL_PDE) *
 				  NUM_VMUSA_UNIT_PER_PAGE, 0);
 
 	m->pt_bo = bo;
@@ -479,7 +479,7 @@ static void emit_pte(struct xe_migrate *m,
 	struct xe_vm *vm = m->q->vm;
 	u16 pat_index;
 	u32 ptes;
-	u64 ofs = at_pt * XE_PAGE_SIZE;
+	u64 ofs = (u64)at_pt * XE_PAGE_SIZE;
 	u64 cur_ofs;
 
 	/* Indirect access needs compression enabled uncached PAT index */
-- 
2.43.0

[PATCH AUTOSEL 6.8 41/43] drm/xe: Label RING_CONTEXT_CONTROL as masked

[Sasha Levin]

From: Ashutosh Dixit <ashutosh.dixit@intel.com>

[ Upstream commit f76646c83f028c62853c23dac49204232e903597 ]

RING_CONTEXT_CONTROL is a masked register.

v2: Also clean up setting register value (Lucas)

Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240404161256.3852502-1-ashutosh.dixit@intel.com
(cherry picked from commit dc30c6e7149baaae4288c742de95212b31f07438)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/xe/regs/xe_engine_regs.h | 2 +-
 drivers/gpu/drm/xe/xe_lrc.c              | 5 ++---
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/xe/regs/xe_engine_regs.h b/drivers/gpu/drm/xe/regs/xe_engine_regs.h
index 5592774fc6903..81b8362e93406 100644
--- a/drivers/gpu/drm/xe/regs/xe_engine_regs.h
+++ b/drivers/gpu/drm/xe/regs/xe_engine_regs.h
@@ -120,7 +120,7 @@
 #define RING_EXECLIST_STATUS_LO(base)		XE_REG((base) + 0x234)
 #define RING_EXECLIST_STATUS_HI(base)		XE_REG((base) + 0x234 + 4)
 
-#define RING_CONTEXT_CONTROL(base)		XE_REG((base) + 0x244)
+#define RING_CONTEXT_CONTROL(base)		XE_REG((base) + 0x244, XE_REG_OPTION_MASKED)
 #define	  CTX_CTRL_INHIBIT_SYN_CTX_SWITCH	REG_BIT(3)
 #define	  CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT	REG_BIT(0)
 
diff --git a/drivers/gpu/drm/xe/xe_lrc.c b/drivers/gpu/drm/xe/xe_lrc.c
index b38319d2801e0..ae5cfad646ec7 100644
--- a/drivers/gpu/drm/xe/xe_lrc.c
+++ b/drivers/gpu/drm/xe/xe_lrc.c
@@ -525,9 +525,8 @@ static const u8 *reg_offsets(struct xe_device *xe, enum xe_engine_class class)
 
 static void set_context_control(u32 *regs, struct xe_hw_engine *hwe)
 {
-	regs[CTX_CONTEXT_CONTROL] = _MASKED_BIT_ENABLE(CTX_CTRL_INHIBIT_SYN_CTX_SWITCH) |
-				    _MASKED_BIT_DISABLE(CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT) |
-				    CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT;
+	regs[CTX_CONTEXT_CONTROL] = _MASKED_BIT_ENABLE(CTX_CTRL_INHIBIT_SYN_CTX_SWITCH |
+						       CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT);
 
 	/* TODO: Timestamp */
 }
-- 
2.43.0

[PATCH AUTOSEL 6.8 42/43] smb3: fix broken reconnect when password changing on the server by allowing password rotation

[Sasha Levin]

From: Steve French <stfrench@microsoft.com>

[ Upstream commit 35f834265e0dc78b003aa0d1af65cafb89666b76 ]

There are various use cases that are becoming more common in which password
changes are scheduled on a server(s) periodically but the clients connected
to this server need to stay connected (even in the face of brief network
reconnects) due to mounts which can not be easily unmounted and mounted at
will, and servers that do password rotation do not always have the ability
to tell the clients exactly when to the new password will be effective,
so add support for an alt password ("password2=") on mount (and also
remount) so that we can anticipate the upcoming change to the server
without risking breaking existing mounts.

An alternative would have been to use the kernel keyring for this but the
processes doing the reconnect do not have access to the keyring but do
have access to the ses structure.

Reviewed-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/smb/client/cifsglob.h   |  1 +
 fs/smb/client/connect.c    |  8 ++++++++
 fs/smb/client/fs_context.c | 21 +++++++++++++++++++++
 fs/smb/client/fs_context.h |  2 ++
 fs/smb/client/misc.c       |  1 +
 fs/smb/client/smb2pdu.c    | 11 +++++++++++
 6 files changed, 44 insertions(+)

diff --git a/fs/smb/client/cifsglob.h b/fs/smb/client/cifsglob.h
index 844afda090d05..8a4ea961b28ee 100644
--- a/fs/smb/client/cifsglob.h
+++ b/fs/smb/client/cifsglob.h
@@ -1063,6 +1063,7 @@ struct cifs_ses {
 				   and after mount option parsing we fill it */
 	char *domainName;
 	char *password;
+	char *password2; /* When key rotation used, new password may be set before it expires */
 	char workstation_name[CIFS_MAX_WORKSTATION_LEN];
 	struct session_key auth_key;
 	struct ntlmssp_auth *ntlmssp; /* ciphertext, flags, server challenge */
diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c
index 7516c7d4558d8..e28f011f11d6c 100644
--- a/fs/smb/client/connect.c
+++ b/fs/smb/client/connect.c
@@ -2186,6 +2186,7 @@ cifs_set_cifscreds(struct smb3_fs_context *ctx, struct cifs_ses *ses)
 	}
 
 	++delim;
+	/* BB consider adding support for password2 (Key Rotation) for multiuser in future */
 	ctx->password = kstrndup(delim, len, GFP_KERNEL);
 	if (!ctx->password) {
 		cifs_dbg(FYI, "Unable to allocate %zd bytes for password\n",
@@ -2209,6 +2210,7 @@ cifs_set_cifscreds(struct smb3_fs_context *ctx, struct cifs_ses *ses)
 			kfree(ctx->username);
 			ctx->username = NULL;
 			kfree_sensitive(ctx->password);
+			/* no need to free ctx->password2 since not allocated in this path */
 			ctx->password = NULL;
 			goto out_key_put;
 		}
@@ -2320,6 +2322,12 @@ cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb3_fs_context *ctx)
 		if (!ses->password)
 			goto get_ses_fail;
 	}
+	/* ctx->password freed at unmount */
+	if (ctx->password2) {
+		ses->password2 = kstrdup(ctx->password2, GFP_KERNEL);
+		if (!ses->password2)
+			goto get_ses_fail;
+	}
 	if (ctx->domainname) {
 		ses->domainName = kstrdup(ctx->domainname, GFP_KERNEL);
 		if (!ses->domainName)
diff --git a/fs/smb/client/fs_context.c b/fs/smb/client/fs_context.c
index d9fe17b2ba375..ce04108162357 100644
--- a/fs/smb/client/fs_context.c
+++ b/fs/smb/client/fs_context.c
@@ -162,6 +162,7 @@ const struct fs_parameter_spec smb3_fs_parameters[] = {
 	fsparam_string("username", Opt_user),
 	fsparam_string("pass", Opt_pass),
 	fsparam_string("password", Opt_pass),
+	fsparam_string("password2", Opt_pass2),
 	fsparam_string("ip", Opt_ip),
 	fsparam_string("addr", Opt_ip),
 	fsparam_string("domain", Opt_domain),
@@ -315,6 +316,7 @@ smb3_fs_context_dup(struct smb3_fs_context *new_ctx, struct smb3_fs_context *ctx
 	new_ctx->nodename = NULL;
 	new_ctx->username = NULL;
 	new_ctx->password = NULL;
+	new_ctx->password2 = NULL;
 	new_ctx->server_hostname = NULL;
 	new_ctx->domainname = NULL;
 	new_ctx->UNC = NULL;
@@ -327,6 +329,7 @@ smb3_fs_context_dup(struct smb3_fs_context *new_ctx, struct smb3_fs_context *ctx
 	DUP_CTX_STR(prepath);
 	DUP_CTX_STR(username);
 	DUP_CTX_STR(password);
+	DUP_CTX_STR(password2);
 	DUP_CTX_STR(server_hostname);
 	DUP_CTX_STR(UNC);
 	DUP_CTX_STR(source);
@@ -875,6 +878,8 @@ static int smb3_reconfigure(struct fs_context *fc)
 	else  {
 		kfree_sensitive(ses->password);
 		ses->password = kstrdup(ctx->password, GFP_KERNEL);
+		kfree_sensitive(ses->password2);
+		ses->password2 = kstrdup(ctx->password2, GFP_KERNEL);
 	}
 	STEAL_STRING(cifs_sb, ctx, domainname);
 	STEAL_STRING(cifs_sb, ctx, nodename);
@@ -1275,6 +1280,18 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
 			goto cifs_parse_mount_err;
 		}
 		break;
+	case Opt_pass2:
+		kfree_sensitive(ctx->password2);
+		ctx->password2 = NULL;
+		if (strlen(param->string) == 0)
+			break;
+
+		ctx->password2 = kstrdup(param->string, GFP_KERNEL);
+		if (ctx->password2 == NULL) {
+			cifs_errorf(fc, "OOM when copying password2 string\n");
+			goto cifs_parse_mount_err;
+		}
+		break;
 	case Opt_ip:
 		if (strlen(param->string) == 0) {
 			ctx->got_ip = false;
@@ -1574,6 +1591,8 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
  cifs_parse_mount_err:
 	kfree_sensitive(ctx->password);
 	ctx->password = NULL;
+	kfree_sensitive(ctx->password2);
+	ctx->password2 = NULL;
 	return -EINVAL;
 }
 
@@ -1678,6 +1697,8 @@ smb3_cleanup_fs_context_contents(struct smb3_fs_context *ctx)
 	ctx->username = NULL;
 	kfree_sensitive(ctx->password);
 	ctx->password = NULL;
+	kfree_sensitive(ctx->password2);
+	ctx->password2 = NULL;
 	kfree(ctx->server_hostname);
 	ctx->server_hostname = NULL;
 	kfree(ctx->UNC);
diff --git a/fs/smb/client/fs_context.h b/fs/smb/client/fs_context.h
index b3d51b345eaef..3744071d5b8df 100644
--- a/fs/smb/client/fs_context.h
+++ b/fs/smb/client/fs_context.h
@@ -138,6 +138,7 @@ enum cifs_param {
 	Opt_source,
 	Opt_user,
 	Opt_pass,
+	Opt_pass2,
 	Opt_ip,
 	Opt_domain,
 	Opt_srcaddr,
@@ -169,6 +170,7 @@ struct smb3_fs_context {
 
 	char *username;
 	char *password;
+	char *password2;
 	char *domainname;
 	char *source;
 	char *server_hostname;
diff --git a/fs/smb/client/misc.c b/fs/smb/client/misc.c
index 74627d647818a..3edf270ceef3e 100644
--- a/fs/smb/client/misc.c
+++ b/fs/smb/client/misc.c
@@ -101,6 +101,7 @@ sesInfoFree(struct cifs_ses *buf_to_free)
 	kfree(buf_to_free->serverDomain);
 	kfree(buf_to_free->serverNOS);
 	kfree_sensitive(buf_to_free->password);
+	kfree_sensitive(buf_to_free->password2);
 	kfree(buf_to_free->user_name);
 	kfree(buf_to_free->domainName);
 	kfree_sensitive(buf_to_free->auth_key.response);
diff --git a/fs/smb/client/smb2pdu.c b/fs/smb/client/smb2pdu.c
index b71e32d66eba7..60793143e24c6 100644
--- a/fs/smb/client/smb2pdu.c
+++ b/fs/smb/client/smb2pdu.c
@@ -367,6 +367,17 @@ smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon,
 		}
 
 		rc = cifs_setup_session(0, ses, server, nls_codepage);
+		if ((rc == -EACCES) || (rc == -EKEYEXPIRED) || (rc == -EKEYREVOKED)) {
+			/*
+			 * Try alternate password for next reconnect (key rotation
+			 * could be enabled on the server e.g.) if an alternate
+			 * password is available and the current password is expired,
+			 * but do not swap on non pwd related errors like host down
+			 */
+			if (ses->password2)
+				swap(ses->password2, ses->password);
+		}
+
 		if ((rc == -EACCES) && !tcon->retry) {
 			mutex_unlock(&ses->session_mutex);
 			rc = -EHOSTDOWN;
-- 
2.43.0

[PATCH AUTOSEL 6.8 43/43] iommu: mtk: fix module autoloading

[Sasha Levin]

From: Krzysztof Kozlowski <krzk@kernel.org>

[ Upstream commit 7537e31df80cb58c27f3b6fef702534ea87a5957 ]

Add MODULE_DEVICE_TABLE(), so modules could be properly autoloaded
based on the alias from of_device_id table.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20240410164109.233308-1-krzk@kernel.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iommu/mtk_iommu.c    | 1 +
 drivers/iommu/mtk_iommu_v1.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 7abe9e85a5706..51d0eba8cbdf3 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -1789,6 +1789,7 @@ static const struct of_device_id mtk_iommu_of_ids[] = {
 	{ .compatible = "mediatek,mt8365-m4u", .data = &mt8365_data},
 	{}
 };
+MODULE_DEVICE_TABLE(of, mtk_iommu_of_ids);
 
 static struct platform_driver mtk_iommu_driver = {
 	.probe	= mtk_iommu_probe,
diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c
index 25b41222abaec..32cc8341d3726 100644
--- a/drivers/iommu/mtk_iommu_v1.c
+++ b/drivers/iommu/mtk_iommu_v1.c
@@ -599,6 +599,7 @@ static const struct of_device_id mtk_iommu_v1_of_ids[] = {
 	{ .compatible = "mediatek,mt2701-m4u", },
 	{}
 };
+MODULE_DEVICE_TABLE(of, mtk_iommu_v1_of_ids);
 
 static const struct component_master_ops mtk_iommu_v1_com_ops = {
 	.bind		= mtk_iommu_v1_bind,
-- 
2.43.0