From: Adrian Hunter <adrian.hunter(a)intel.com>
thread__resolve() is used in the sample_addr_correlates_sym() cases
where 'addr' is a destination of a branch which does not necessarily
have the same cpumode as the 'ip'. Use the fallback function in that
case.
This patch depends on patch "perf tools: Add fallback functions for
cases where cpumode is insufficient".
Signed-off-by: Adrian Hunter <adrian.hunter(a)intel.com>
Cc: Andi Kleen <ak(a)linux.intel.com>
Cc: David S. Miller <davem(a)davemloft.net>
Cc: Jiri Olsa <jolsa(a)redhat.com>
Cc: Leo Yan <leo.yan(a)linaro.org>
Cc: Mathieu Poirier <mathieu.poirier(a)linaro.org>
Cc: stable(a)vger.kernel.org
Link: http://lkml.kernel.org/r/20181106210712.12098-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme(a)redhat.com>
---
tools/perf/util/event.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 9431b20c1337..24493200cf80 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -1706,7 +1706,7 @@ bool sample_addr_correlates_sym(struct perf_event_attr *attr)
void thread__resolve(struct thread *thread, struct addr_location *al,
struct perf_sample *sample)
{
- thread__find_map(thread, sample->cpumode, sample->addr, al);
+ thread__find_map_fb(thread, sample->cpumode, sample->addr, al);
al->cpu = sample->cpu;
al->sym = NULL;
--
2.19.2
From: Adrian Hunter <adrian.hunter(a)intel.com>
Some architectures have a single address space for kernel and user
addresses, which makes it possible to determine if an address is in
kernel space or user space. Some don't, e.g.: sparc.
Cache that info in perf_env so that, for instance, code needing to
fallback failed symbol lookups at the kernel space in single address
space arches can lookup at userspace.
Signed-off-by: Adrian Hunter <adrian.hunter(a)intel.com>
Cc: Andi Kleen <ak(a)linux.intel.com>
Cc: David S. Miller <davem(a)davemloft.net>
Cc: Jiri Olsa <jolsa(a)redhat.com>
Cc: Leo Yan <leo.yan(a)linaro.org>
Cc: Mathieu Poirier <mathieu.poirier(a)linaro.org>
Cc: stable(a)vger.kernel.org
Link: http://lkml.kernel.org/r/20181106210712.12098-2-adrian.hunter@intel.com
[ split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme(a)redhat.com>
---
tools/perf/arch/common.c | 10 ++++++++++
tools/perf/arch/common.h | 1 +
tools/perf/util/machine.h | 1 +
tools/perf/util/session.c | 4 ++++
4 files changed, 16 insertions(+)
diff --git a/tools/perf/arch/common.c b/tools/perf/arch/common.c
index 82657c01a3b8..5f69fd0b745a 100644
--- a/tools/perf/arch/common.c
+++ b/tools/perf/arch/common.c
@@ -200,3 +200,13 @@ int perf_env__lookup_objdump(struct perf_env *env, const char **path)
return perf_env__lookup_binutils_path(env, "objdump", path);
}
+
+/*
+ * Some architectures have a single address space for kernel and user addresses,
+ * which makes it possible to determine if an address is in kernel space or user
+ * space.
+ */
+bool perf_env__single_address_space(struct perf_env *env)
+{
+ return strcmp(perf_env__arch(env), "sparc");
+}
diff --git a/tools/perf/arch/common.h b/tools/perf/arch/common.h
index 2167001b18c5..c298a446d1f6 100644
--- a/tools/perf/arch/common.h
+++ b/tools/perf/arch/common.h
@@ -5,5 +5,6 @@
#include "../util/env.h"
int perf_env__lookup_objdump(struct perf_env *env, const char **path);
+bool perf_env__single_address_space(struct perf_env *env);
#endif /* ARCH_PERF_COMMON_H */
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
index d856b85862e2..ca897a73014c 100644
--- a/tools/perf/util/machine.h
+++ b/tools/perf/util/machine.h
@@ -42,6 +42,7 @@ struct machine {
u16 id_hdr_size;
bool comm_exec;
bool kptr_restrict_warned;
+ bool single_address_space;
char *root_dir;
char *mmap_name;
struct threads threads[THREADS__TABLE_SIZE];
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 7d2c8ce6cfad..f8eab197f35c 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -24,6 +24,7 @@
#include "thread.h"
#include "thread-stack.h"
#include "stat.h"
+#include "arch/common.h"
static int perf_session__deliver_event(struct perf_session *session,
union perf_event *event,
@@ -150,6 +151,9 @@ struct perf_session *perf_session__new(struct perf_data *data,
session->machines.host.env = &perf_env;
}
+ session->machines.host.single_address_space =
+ perf_env__single_address_space(session->machines.host.env);
+
if (!data || perf_data__is_write(data)) {
/*
* In O_RDONLY mode this will be performed when reading the
--
2.19.2
From: Arnaldo Carvalho de Melo <acme(a)redhat.com>
We'll set a new machine field based on env->arch, which for live mode,
like with 'perf top' means we need to use uname() to figure the name of
the arch, fix perf_env__arch() to consider both (env == NULL) and
(env->arch == NULL) as local operation.
Cc: Adrian Hunter <adrian.hunter(a)intel.com>
Cc: Andi Kleen <ak(a)linux.intel.com>
Cc: David Ahern <dsahern(a)gmail.com>
Cc: David S. Miller <davem(a)davemloft.net>
Cc: Jiri Olsa <jolsa(a)redhat.com>
Cc: Leo Yan <leo.yan(a)linaro.org>
Cc: Mathieu Poirier <mathieu.poirier(a)linaro.org>
Cc: Namhyung Kim <namhyung(a)kernel.org>
Cc: Wang Nan <wangnan0(a)huawei.com>
Cc: stable(a)vger.kernel.org
Link: https://lkml.kernel.org/n/tip-vcz4ufzdon7cwy8dm2ua53xk@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme(a)redhat.com>
---
tools/perf/util/env.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c
index 59f38c7693f8..4c23779e271a 100644
--- a/tools/perf/util/env.c
+++ b/tools/perf/util/env.c
@@ -166,7 +166,7 @@ const char *perf_env__arch(struct perf_env *env)
struct utsname uts;
char *arch_name;
- if (!env) { /* Assume local operation */
+ if (!env || !env->arch) { /* Assume local operation */
if (uname(&uts) < 0)
return NULL;
arch_name = uts.machine;
--
2.19.2
Braswell is really picky about having our writes posted to memory before
we execute or else the GPU may see stale values. A wmb() is insufficient
as it only ensures the writes are visible to other cores, we need a full
mb() to ensure the writes are in memory and visible to the GPU.
The most frequent failure in flushing before execution is that we see
stale PTE values and execute the wrong pages.
References: 987abd5c62f9 ("drm/i915/execlists: Force write serialisation into context image vs execution")
Signed-off-by: Chris Wilson <chris(a)chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala(a)linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin(a)intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen(a)linux.intel.com>
Cc: stable(a)vger.kernel.org
---
drivers/gpu/drm/i915/intel_lrc.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index de1e9dc6aec0..e6a86fa4502d 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -379,8 +379,13 @@ static u64 execlists_update_context(struct i915_request *rq)
* may not be visible to the HW prior to the completion of the UC
* register write and that we may begin execution from the context
* before its image is complete leading to invalid PD chasing.
+ *
+ * Furthermore, Braswell, at least, wants a full mb to be sure that
+ * the writes are coherent in memory (visible to the GPU) prior to
+ * execution, and not just visible to other CPUs (as is the result of
+ * wmb).
*/
- wmb();
+ mb();
return ce->lrc_desc;
}
--
2.20.0.rc2
The Gnawty model Chromebook uses pmc_plt_clk_0 instead of pmc_plt_clk_3
for the mclk, just like the Clapper and Swanky models.
This commit adds a DMI based quirk for this.
This fixing audio no longer working on these devices after
commit 648e921888ad ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL")
that commit fixes us unnecessary keeping unused clocks on, but in case of
the Gnawty that was breaking audio support since we were not using the
right clock in the cht_bsw_max98090_ti machine driver.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=201787
Cc: stable(a)vger.kernel.org
Fixes: 648e921888ad ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL")
Reported-and-tested-by: Jaime Pérez <19.jaime.91(a)gmail.com>
Signed-off-by: Hans de Goede <hdegoede(a)redhat.com>
---
sound/soc/intel/boards/cht_bsw_max98090_ti.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/sound/soc/intel/boards/cht_bsw_max98090_ti.c b/sound/soc/intel/boards/cht_bsw_max98090_ti.c
index ad0c98383853..08a5152e635a 100644
--- a/sound/soc/intel/boards/cht_bsw_max98090_ti.c
+++ b/sound/soc/intel/boards/cht_bsw_max98090_ti.c
@@ -396,6 +396,13 @@ static const struct dmi_system_id cht_max98090_quirk_table[] = {
},
.driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
},
+ {
+ /* Gnawty model Chromebook (Acer Chromebook CB3-111) */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "Gnawty"),
+ },
+ .driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
+ },
{
/* Swanky model Chromebook (Toshiba Chromebook 2) */
.matches = {
--
2.19.2