| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1583472756-7611-1-git-send-email-mansur@codeaurora.org>
Date: Fri, 6 Mar 2020 11:02:36 +0530
From: Mansur Alisha Shaik <mansur@...eaurora.org>
To: linux-media@...r.kernel.org, stanimir.varbanov@...aro.org
Cc: linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
vgarodia@...eaurora.org, mansur@...eaurora.org
Subject: [PATCH] venus: avoid extra locking in driver
This change will avoid extra locking in driver.
Signed-off-by: Mansur Alisha Shaik <mansur@...eaurora.org>
---
drivers/media/platform/qcom/venus/core.c | 2 +-
drivers/media/platform/qcom/venus/core.h | 2 +-
drivers/media/platform/qcom/venus/helpers.c | 11 +++++++++--
drivers/media/platform/qcom/venus/pm_helpers.c | 8 ++++----
4 files changed, 15 insertions(+), 8 deletions(-)
diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 194b10b9..75d38b8 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -447,7 +447,7 @@ static const struct freq_tbl sdm845_freq_table[] = {
{ 244800, 100000000 }, /* 1920x1080@30 */
};
-static struct codec_freq_data sdm845_codec_freq_data[] = {
+static const struct codec_freq_data sdm845_codec_freq_data[] = {
{ V4L2_PIX_FMT_H264, VIDC_SESSION_TYPE_ENC, 675, 10 },
{ V4L2_PIX_FMT_HEVC, VIDC_SESSION_TYPE_ENC, 675, 10 },
{ V4L2_PIX_FMT_VP8, VIDC_SESSION_TYPE_ENC, 675, 10 },
diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
index ab7c360..8c8d0e9 100644
--- a/drivers/media/platform/qcom/venus/core.h
+++ b/drivers/media/platform/qcom/venus/core.h
@@ -245,7 +245,7 @@ struct venus_buffer {
struct clock_data {
u32 core_id;
unsigned long freq;
- const struct codec_freq_data *codec_freq_data;
+ struct codec_freq_data codec_freq_data;
};
#define to_venus_buffer(ptr) container_of(ptr, struct venus_buffer, vb)
diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
index bcc6038..550c4ff 100644
--- a/drivers/media/platform/qcom/venus/helpers.c
+++ b/drivers/media/platform/qcom/venus/helpers.c
@@ -807,6 +807,7 @@ int venus_helper_init_codec_freq_data(struct venus_inst *inst)
unsigned int i, data_size;
u32 pixfmt;
int ret = 0;
+ bool found = false;
if (!IS_V4(inst->core))
return 0;
@@ -816,16 +817,22 @@ int venus_helper_init_codec_freq_data(struct venus_inst *inst)
pixfmt = inst->session_type == VIDC_SESSION_TYPE_DEC ?
inst->fmt_out->pixfmt : inst->fmt_cap->pixfmt;
+ memset(&inst->clk_data.codec_freq_data, 0,
+ sizeof(inst->clk_data.codec_freq_data));
+
for (i = 0; i < data_size; i++) {
if (data[i].pixfmt == pixfmt &&
data[i].session_type == inst->session_type) {
- inst->clk_data.codec_freq_data = &data[i];
+ inst->clk_data.codec_freq_data = data[i];
+ found = true;
break;
}
}
- if (!inst->clk_data.codec_freq_data)
+ if (!found) {
+ dev_err(inst->core->dev, "cannot find codec freq data\n");
ret = -EINVAL;
+ }
return ret;
}
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index abf9315..240845e 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -496,7 +496,7 @@ min_loaded_core(struct venus_inst *inst, u32 *min_coreid, u32 *min_load)
list_for_each_entry(inst_pos, &core->instances, list) {
if (inst_pos == inst)
continue;
- vpp_freq = inst_pos->clk_data.codec_freq_data->vpp_freq;
+ vpp_freq = inst_pos->clk_data.codec_freq_data.vpp_freq;
coreid = inst_pos->clk_data.core_id;
mbs_per_sec = load_per_instance(inst_pos);
@@ -545,7 +545,7 @@ static int decide_core(struct venus_inst *inst)
return 0;
inst_load = load_per_instance(inst);
- inst_load *= inst->clk_data.codec_freq_data->vpp_freq;
+ inst_load *= inst->clk_data.codec_freq_data.vpp_freq;
max_freq = core->res->freq_tbl[0].freq;
min_loaded_core(inst, &min_coreid, &min_load);
@@ -848,10 +848,10 @@ static unsigned long calculate_inst_freq(struct venus_inst *inst,
mbs_per_sec = load_per_instance(inst) / fps;
- vpp_freq = mbs_per_sec * inst->clk_data.codec_freq_data->vpp_freq;
+ vpp_freq = mbs_per_sec * inst->clk_data.codec_freq_data.vpp_freq;
/* 21 / 20 is overhead factor */
vpp_freq += vpp_freq / 20;
- vsp_freq = mbs_per_sec * inst->clk_data.codec_freq_data->vsp_freq;
+ vsp_freq = mbs_per_sec * inst->clk_data.codec_freq_data.vsp_freq;
/* 10 / 7 is overhead factor */
if (inst->session_type == VIDC_SESSION_TYPE_ENC)
--
2.7.4
Powered by blists - more mailing lists