| Message ID | 20230930083715.2050863-4-Shyam-sundar.S-k@amd.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Introduce PMF Smart PC Solution Builder Feature | expand |
On Sat, 30 Sep 2023, Shyam Sundar S K wrote: > In the current code, the metrics table information was required only > for auto-mode or CnQF at a given time. Hence keeping the return type > of amd_pmf_set_dram_addr() as static made sense. > > But with the addition of Smart PC builder feature, the metrics table > information has to be shared by the Smart PC also and this feature > resides outside of core.c. > > To make amd_pmf_set_dram_addr() visible outside of core.c make it > as a non-static function and move the allocation of memory for > metrics table from amd_pmf_init_metrics_table() to amd_pmf_set_dram_addr() > as amd_pmf_set_dram_addr() is the common function to set the DRAM > address. > > Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> > Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> > --- > drivers/platform/x86/amd/pmf/core.c | 26 ++++++++++++++++++-------- > drivers/platform/x86/amd/pmf/pmf.h | 1 + > 2 files changed, 19 insertions(+), 8 deletions(-) > > diff --git a/drivers/platform/x86/amd/pmf/core.c b/drivers/platform/x86/amd/pmf/core.c > index 68f1389dda3e..678dce4fea08 100644 > --- a/drivers/platform/x86/amd/pmf/core.c > +++ b/drivers/platform/x86/amd/pmf/core.c > @@ -251,29 +251,35 @@ static const struct pci_device_id pmf_pci_ids[] = { > { } > }; > > -static void amd_pmf_set_dram_addr(struct amd_pmf_dev *dev) > +int amd_pmf_set_dram_addr(struct amd_pmf_dev *dev) > { > u64 phys_addr; > u32 hi, low; > > + /* Get Metrics Table Address */ > + dev->buf = kzalloc(sizeof(dev->m_table), GFP_KERNEL); > + if (!dev->buf) > + return -ENOMEM; > + > phys_addr = virt_to_phys(dev->buf); > hi = phys_addr >> 32; > low = phys_addr & GENMASK(31, 0); > > amd_pmf_send_cmd(dev, SET_DRAM_ADDR_HIGH, 0, hi, NULL); > amd_pmf_send_cmd(dev, SET_DRAM_ADDR_LOW, 0, low, NULL); > + > + return 0; > } > > int amd_pmf_init_metrics_table(struct amd_pmf_dev *dev) > { > - /* Get Metrics Table Address */ > - dev->buf = kzalloc(sizeof(dev->m_table), GFP_KERNEL); > - if (!dev->buf) > - return -ENOMEM; > + int ret; > > INIT_DELAYED_WORK(&dev->work_buffer, amd_pmf_get_metrics); > > - amd_pmf_set_dram_addr(dev); > + ret = amd_pmf_set_dram_addr(dev); > + if (ret) > + return ret; > > /* > * Start collecting the metrics data after a small delay > @@ -287,9 +293,13 @@ int amd_pmf_init_metrics_table(struct amd_pmf_dev *dev) > static int amd_pmf_resume_handler(struct device *dev) > { > struct amd_pmf_dev *pdev = dev_get_drvdata(dev); > + int ret; > > - if (pdev->buf) > - amd_pmf_set_dram_addr(pdev); > + if (pdev->buf) { > + ret = amd_pmf_set_dram_addr(pdev); Won't this now leak the previous ->buf? > + if (ret) > + return ret; > + } > > return 0; > } > diff --git a/drivers/platform/x86/amd/pmf/pmf.h b/drivers/platform/x86/amd/pmf/pmf.h > index e0837799f521..3930b8ed8333 100644 > --- a/drivers/platform/x86/amd/pmf/pmf.h > +++ b/drivers/platform/x86/amd/pmf/pmf.h > @@ -421,6 +421,7 @@ int amd_pmf_init_metrics_table(struct amd_pmf_dev *dev); > int amd_pmf_get_power_source(void); > int apmf_install_handler(struct amd_pmf_dev *pmf_dev); > int apmf_os_power_slider_update(struct amd_pmf_dev *dev, u8 flag); > +int amd_pmf_set_dram_addr(struct amd_pmf_dev *dev); > > /* SPS Layer */ > int amd_pmf_get_pprof_modes(struct amd_pmf_dev *pmf); >
diff --git a/drivers/platform/x86/amd/pmf/core.c b/drivers/platform/x86/amd/pmf/core.c index 68f1389dda3e..678dce4fea08 100644 --- a/drivers/platform/x86/amd/pmf/core.c +++ b/drivers/platform/x86/amd/pmf/core.c @@ -251,29 +251,35 @@ static const struct pci_device_id pmf_pci_ids[] = { { } }; -static void amd_pmf_set_dram_addr(struct amd_pmf_dev *dev) +int amd_pmf_set_dram_addr(struct amd_pmf_dev *dev) { u64 phys_addr; u32 hi, low; + /* Get Metrics Table Address */ + dev->buf = kzalloc(sizeof(dev->m_table), GFP_KERNEL); + if (!dev->buf) + return -ENOMEM; + phys_addr = virt_to_phys(dev->buf); hi = phys_addr >> 32; low = phys_addr & GENMASK(31, 0); amd_pmf_send_cmd(dev, SET_DRAM_ADDR_HIGH, 0, hi, NULL); amd_pmf_send_cmd(dev, SET_DRAM_ADDR_LOW, 0, low, NULL); + + return 0; } int amd_pmf_init_metrics_table(struct amd_pmf_dev *dev) { - /* Get Metrics Table Address */ - dev->buf = kzalloc(sizeof(dev->m_table), GFP_KERNEL); - if (!dev->buf) - return -ENOMEM; + int ret; INIT_DELAYED_WORK(&dev->work_buffer, amd_pmf_get_metrics); - amd_pmf_set_dram_addr(dev); + ret = amd_pmf_set_dram_addr(dev); + if (ret) + return ret; /* * Start collecting the metrics data after a small delay @@ -287,9 +293,13 @@ int amd_pmf_init_metrics_table(struct amd_pmf_dev *dev) static int amd_pmf_resume_handler(struct device *dev) { struct amd_pmf_dev *pdev = dev_get_drvdata(dev); + int ret; - if (pdev->buf) - amd_pmf_set_dram_addr(pdev); + if (pdev->buf) { + ret = amd_pmf_set_dram_addr(pdev); + if (ret) + return ret; + } return 0; } diff --git a/drivers/platform/x86/amd/pmf/pmf.h b/drivers/platform/x86/amd/pmf/pmf.h index e0837799f521..3930b8ed8333 100644 --- a/drivers/platform/x86/amd/pmf/pmf.h +++ b/drivers/platform/x86/amd/pmf/pmf.h @@ -421,6 +421,7 @@ int amd_pmf_init_metrics_table(struct amd_pmf_dev *dev); int amd_pmf_get_power_source(void); int apmf_install_handler(struct amd_pmf_dev *pmf_dev); int apmf_os_power_slider_update(struct amd_pmf_dev *dev, u8 flag); +int amd_pmf_set_dram_addr(struct amd_pmf_dev *dev); /* SPS Layer */ int amd_pmf_get_pprof_modes(struct amd_pmf_dev *pmf);