| Message ID | 1530731212-30474-2-git-send-email-vgarodia@codeaurora.org (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Delegated to: | Andy Gross |
| Headers | show |
Hi Vikash, On 07/04/2018 10:06 PM, Vikash Garodia wrote: > Add routine to reset the ARM9 and brings it out of reset. Also > abstract the Venus CPU state handling with a new function. This > is in preparation to add PIL functionality in venus driver. > > Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org> > --- > drivers/media/platform/qcom/venus/core.h | 1 + > drivers/media/platform/qcom/venus/firmware.c | 36 ++++++++++++++++++++++++ > drivers/media/platform/qcom/venus/firmware.h | 1 + > drivers/media/platform/qcom/venus/hfi_venus.c | 13 +++------ > drivers/media/platform/qcom/venus/hfi_venus_io.h | 5 ++++ > 5 files changed, 47 insertions(+), 9 deletions(-) > > diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h > index 2f02365..eb5ee66 100644 > --- a/drivers/media/platform/qcom/venus/core.h > +++ b/drivers/media/platform/qcom/venus/core.h > @@ -129,6 +129,7 @@ struct venus_core { > struct device *dev; > struct device *dev_dec; > struct device *dev_enc; > + bool no_tz; > struct mutex lock; > struct list_head instances; > atomic_t insts_count; > diff --git a/drivers/media/platform/qcom/venus/firmware.c b/drivers/media/platform/qcom/venus/firmware.c > index 521d4b3..3968553d 100644 > --- a/drivers/media/platform/qcom/venus/firmware.c > +++ b/drivers/media/platform/qcom/venus/firmware.c > @@ -22,11 +22,47 @@ > #include <linux/sizes.h> > #include <linux/soc/qcom/mdt_loader.h> > > +#include "core.h" > #include "firmware.h" > +#include "hfi_venus_io.h" > > #define VENUS_PAS_ID 9 > #define VENUS_FW_MEM_SIZE (6 * SZ_1M) > > +static void venus_reset_cpu(struct venus_core *core) > +{ > + void __iomem *base = core->base; > + > + writel(0, base + WRAPPER_FW_START_ADDR); > + writel(VENUS_FW_MEM_SIZE, base + WRAPPER_FW_END_ADDR); > + writel(0, base + WRAPPER_CPA_START_ADDR); > + writel(VENUS_FW_MEM_SIZE, base + WRAPPER_CPA_END_ADDR); > + writel(0x0, base + WRAPPER_CPU_CGC_DIS); > + writel(0x0, base + WRAPPER_CPU_CLOCK_CONFIG); > + > + /* Make sure all register writes are committed. */ > + mb(); > + > + /* Bring ARM9 out of reset */ > + writel_relaxed(0, base + WRAPPER_A9SS_SW_RESET); replace writel_relaxed with writel and drop above mb. The writel has wmb just before writing so I think using writel here is better choice. > +} > + > +int venus_set_hw_state(struct venus_core *core, bool resume) s/resume/suspend as it is done in the function prototype in firmware.h. > +{ > + void __iomem *base = core->base; > + > + if (!core->no_tz) > + return qcom_scm_set_remote_state(resume, 0); > + > + if (resume) > + venus_reset_cpu(core); > + else > + writel(1, base + WRAPPER_A9SS_SW_RESET); > + > + return 0; > +} > +EXPORT_SYMBOL_GPL(venus_set_hw_state); > + > int venus_boot(struct device *dev, const char *fwname) > { > const struct firmware *mdt; > diff --git a/drivers/media/platform/qcom/venus/firmware.h b/drivers/media/platform/qcom/venus/firmware.h > index 428efb5..ff2e70e 100644 > --- a/drivers/media/platform/qcom/venus/firmware.h > +++ b/drivers/media/platform/qcom/venus/firmware.h > @@ -18,5 +18,6 @@ > > int venus_boot(struct device *dev, const char *fwname); > int venus_shutdown(struct device *dev); > +int venus_set_hw_state(struct venus_core *core, bool suspend); could you make two inline functions here, call them venus_set_hw_state_suspend() and venus_set_hw_state_resume() which just call venus_set_hw_state with the right state. > > #endif > diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c > index 9366dae..5b56925 100644 > --- a/drivers/media/platform/qcom/venus/hfi_venus.c > +++ b/drivers/media/platform/qcom/venus/hfi_venus.c > @@ -19,7 +19,6 @@ > #include <linux/interrupt.h> > #include <linux/iopoll.h> > #include <linux/kernel.h> > -#include <linux/qcom_scm.h> > #include <linux/slab.h> > > #include "core.h" > @@ -27,6 +26,7 @@ > #include "hfi_msgs.h" > #include "hfi_venus.h" > #include "hfi_venus_io.h" > +#include "firmware.h" > > #define HFI_MASK_QHDR_TX_TYPE 0xff000000 > #define HFI_MASK_QHDR_RX_TYPE 0x00ff0000 > @@ -55,11 +55,6 @@ > #define IFACEQ_VAR_LARGE_PKT_SIZE 512 > #define IFACEQ_VAR_HUGE_PKT_SIZE (1024 * 12) > > -enum tzbsp_video_state { > - TZBSP_VIDEO_STATE_SUSPEND = 0, > - TZBSP_VIDEO_STATE_RESUME > -}; > - > struct hfi_queue_table_header { > u32 version; > u32 size; > @@ -575,7 +570,7 @@ static int venus_power_off(struct venus_hfi_device *hdev) > if (!hdev->power_enabled) > return 0; > > - ret = qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_SUSPEND, 0); > + ret = venus_set_hw_state(hdev->core, false); ... and use venus_set_hw_state_suspend() > if (ret) > return ret; > > @@ -595,7 +590,7 @@ static int venus_power_on(struct venus_hfi_device *hdev) > if (hdev->power_enabled) > return 0; > > - ret = qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_RESUME, 0); > + ret = venus_set_hw_state(hdev->core, true); ... and use venus_set_hw_state_resume() > if (ret) > goto err; > > @@ -608,7 +603,7 @@ static int venus_power_on(struct venus_hfi_device *hdev) > return 0; > > err_suspend: > - qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_SUSPEND, 0); > + venus_set_hw_state(hdev->core, false); > err: > hdev->power_enabled = false; > return ret; > diff --git a/drivers/media/platform/qcom/venus/hfi_venus_io.h b/drivers/media/platform/qcom/venus/hfi_venus_io.h > index def0926..0a4210f 100644 > --- a/drivers/media/platform/qcom/venus/hfi_venus_io.h > +++ b/drivers/media/platform/qcom/venus/hfi_venus_io.h > @@ -112,6 +112,11 @@ > #define WRAPPER_CPU_STATUS (WRAPPER_BASE + 0x2014) > #define WRAPPER_CPU_STATUS_WFI BIT(0) > #define WRAPPER_SW_RESET (WRAPPER_BASE + 0x3000) > +#define WRAPPER_CPA_START_ADDR (WRAPPER_BASE + 0x1020) > +#define WRAPPER_CPA_END_ADDR (WRAPPER_BASE + 0x1024) > +#define WRAPPER_FW_START_ADDR (WRAPPER_BASE + 0x1028) > +#define WRAPPER_FW_END_ADDR (WRAPPER_BASE + 0x102C) > +#define WRAPPER_A9SS_SW_RESET (WRAPPER_BASE + 0x3000) something is wrong with tabs/indentation could you check? seems only WRAPPER_FW_END_ADDR is fine. > > /* Venus 4xx */ > #define WRAPPER_VCODEC0_MMCC_POWER_STATUS (WRAPPER_BASE + 0x90) >
Hi, On 07/04/2018 10:06 PM, Vikash Garodia wrote: > Add routine to reset the ARM9 and brings it out of reset. Also > abstract the Venus CPU state handling with a new function. This > is in preparation to add PIL functionality in venus driver. > > Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org> > --- > drivers/media/platform/qcom/venus/core.h | 1 + > drivers/media/platform/qcom/venus/firmware.c | 36 ++++++++++++++++++++++++ > drivers/media/platform/qcom/venus/firmware.h | 1 + > drivers/media/platform/qcom/venus/hfi_venus.c | 13 +++------ > drivers/media/platform/qcom/venus/hfi_venus_io.h | 5 ++++ > 5 files changed, 47 insertions(+), 9 deletions(-) > > diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h > index 2f02365..eb5ee66 100644 > --- a/drivers/media/platform/qcom/venus/core.h > +++ b/drivers/media/platform/qcom/venus/core.h > @@ -129,6 +129,7 @@ struct venus_core { > struct device *dev; > struct device *dev_dec; > struct device *dev_enc; > + bool no_tz; > struct mutex lock; > struct list_head instances; > atomic_t insts_count; > diff --git a/drivers/media/platform/qcom/venus/firmware.c b/drivers/media/platform/qcom/venus/firmware.c > index 521d4b3..3968553d 100644 > --- a/drivers/media/platform/qcom/venus/firmware.c > +++ b/drivers/media/platform/qcom/venus/firmware.c > @@ -22,11 +22,47 @@ > #include <linux/sizes.h> > #include <linux/soc/qcom/mdt_loader.h> > > +#include "core.h" > #include "firmware.h" > +#include "hfi_venus_io.h" > > #define VENUS_PAS_ID 9 > #define VENUS_FW_MEM_SIZE (6 * SZ_1M) > > +static void venus_reset_cpu(struct venus_core *core) > +{ > + void __iomem *base = core->base; > + > + writel(0, base + WRAPPER_FW_START_ADDR); > + writel(VENUS_FW_MEM_SIZE, base + WRAPPER_FW_END_ADDR); > + writel(0, base + WRAPPER_CPA_START_ADDR); > + writel(VENUS_FW_MEM_SIZE, base + WRAPPER_CPA_END_ADDR); > + writel(0x0, base + WRAPPER_CPU_CGC_DIS); > + writel(0x0, base + WRAPPER_CPU_CLOCK_CONFIG); > + > + /* Make sure all register writes are committed. */ > + mb(); > + > + /* Bring ARM9 out of reset */ > + writel_relaxed(0, base + WRAPPER_A9SS_SW_RESET); > +} > + > +int venus_set_hw_state(struct venus_core *core, bool resume) > +{ > + void __iomem *base = core->base; > + > + if (!core->no_tz) > + return qcom_scm_set_remote_state(resume, 0); > + > + if (resume) > + venus_reset_cpu(core); > + else > + writel(1, base + WRAPPER_A9SS_SW_RESET); > + > + return 0; > +} > +EXPORT_SYMBOL_GPL(venus_set_hw_state); This export_symbol shouldn't be needed
diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h index 2f02365..eb5ee66 100644 --- a/drivers/media/platform/qcom/venus/core.h +++ b/drivers/media/platform/qcom/venus/core.h @@ -129,6 +129,7 @@ struct venus_core { struct device *dev; struct device *dev_dec; struct device *dev_enc; + bool no_tz; struct mutex lock; struct list_head instances; atomic_t insts_count; diff --git a/drivers/media/platform/qcom/venus/firmware.c b/drivers/media/platform/qcom/venus/firmware.c index 521d4b3..3968553d 100644 --- a/drivers/media/platform/qcom/venus/firmware.c +++ b/drivers/media/platform/qcom/venus/firmware.c @@ -22,11 +22,47 @@ #include <linux/sizes.h> #include <linux/soc/qcom/mdt_loader.h> +#include "core.h" #include "firmware.h" +#include "hfi_venus_io.h" #define VENUS_PAS_ID 9 #define VENUS_FW_MEM_SIZE (6 * SZ_1M) +static void venus_reset_cpu(struct venus_core *core) +{ + void __iomem *base = core->base; + + writel(0, base + WRAPPER_FW_START_ADDR); + writel(VENUS_FW_MEM_SIZE, base + WRAPPER_FW_END_ADDR); + writel(0, base + WRAPPER_CPA_START_ADDR); + writel(VENUS_FW_MEM_SIZE, base + WRAPPER_CPA_END_ADDR); + writel(0x0, base + WRAPPER_CPU_CGC_DIS); + writel(0x0, base + WRAPPER_CPU_CLOCK_CONFIG); + + /* Make sure all register writes are committed. */ + mb(); + + /* Bring ARM9 out of reset */ + writel_relaxed(0, base + WRAPPER_A9SS_SW_RESET); +} + +int venus_set_hw_state(struct venus_core *core, bool resume) +{ + void __iomem *base = core->base; + + if (!core->no_tz) + return qcom_scm_set_remote_state(resume, 0); + + if (resume) + venus_reset_cpu(core); + else + writel(1, base + WRAPPER_A9SS_SW_RESET); + + return 0; +} +EXPORT_SYMBOL_GPL(venus_set_hw_state); + int venus_boot(struct device *dev, const char *fwname) { const struct firmware *mdt; diff --git a/drivers/media/platform/qcom/venus/firmware.h b/drivers/media/platform/qcom/venus/firmware.h index 428efb5..ff2e70e 100644 --- a/drivers/media/platform/qcom/venus/firmware.h +++ b/drivers/media/platform/qcom/venus/firmware.h @@ -18,5 +18,6 @@ int venus_boot(struct device *dev, const char *fwname); int venus_shutdown(struct device *dev); +int venus_set_hw_state(struct venus_core *core, bool suspend); #endif diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c index 9366dae..5b56925 100644 --- a/drivers/media/platform/qcom/venus/hfi_venus.c +++ b/drivers/media/platform/qcom/venus/hfi_venus.c @@ -19,7 +19,6 @@ #include <linux/interrupt.h> #include <linux/iopoll.h> #include <linux/kernel.h> -#include <linux/qcom_scm.h> #include <linux/slab.h> #include "core.h" @@ -27,6 +26,7 @@ #include "hfi_msgs.h" #include "hfi_venus.h" #include "hfi_venus_io.h" +#include "firmware.h" #define HFI_MASK_QHDR_TX_TYPE 0xff000000 #define HFI_MASK_QHDR_RX_TYPE 0x00ff0000 @@ -55,11 +55,6 @@ #define IFACEQ_VAR_LARGE_PKT_SIZE 512 #define IFACEQ_VAR_HUGE_PKT_SIZE (1024 * 12) -enum tzbsp_video_state { - TZBSP_VIDEO_STATE_SUSPEND = 0, - TZBSP_VIDEO_STATE_RESUME -}; - struct hfi_queue_table_header { u32 version; u32 size; @@ -575,7 +570,7 @@ static int venus_power_off(struct venus_hfi_device *hdev) if (!hdev->power_enabled) return 0; - ret = qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_SUSPEND, 0); + ret = venus_set_hw_state(hdev->core, false); if (ret) return ret; @@ -595,7 +590,7 @@ static int venus_power_on(struct venus_hfi_device *hdev) if (hdev->power_enabled) return 0; - ret = qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_RESUME, 0); + ret = venus_set_hw_state(hdev->core, true); if (ret) goto err; @@ -608,7 +603,7 @@ static int venus_power_on(struct venus_hfi_device *hdev) return 0; err_suspend: - qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_SUSPEND, 0); + venus_set_hw_state(hdev->core, false); err: hdev->power_enabled = false; return ret; diff --git a/drivers/media/platform/qcom/venus/hfi_venus_io.h b/drivers/media/platform/qcom/venus/hfi_venus_io.h index def0926..0a4210f 100644 --- a/drivers/media/platform/qcom/venus/hfi_venus_io.h +++ b/drivers/media/platform/qcom/venus/hfi_venus_io.h @@ -112,6 +112,11 @@ #define WRAPPER_CPU_STATUS (WRAPPER_BASE + 0x2014) #define WRAPPER_CPU_STATUS_WFI BIT(0) #define WRAPPER_SW_RESET (WRAPPER_BASE + 0x3000) +#define WRAPPER_CPA_START_ADDR (WRAPPER_BASE + 0x1020) +#define WRAPPER_CPA_END_ADDR (WRAPPER_BASE + 0x1024) +#define WRAPPER_FW_START_ADDR (WRAPPER_BASE + 0x1028) +#define WRAPPER_FW_END_ADDR (WRAPPER_BASE + 0x102C) +#define WRAPPER_A9SS_SW_RESET (WRAPPER_BASE + 0x3000) /* Venus 4xx */ #define WRAPPER_VCODEC0_MMCC_POWER_STATUS (WRAPPER_BASE + 0x90)
Add routine to reset the ARM9 and brings it out of reset. Also abstract the Venus CPU state handling with a new function. This is in preparation to add PIL functionality in venus driver. Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org> --- drivers/media/platform/qcom/venus/core.h | 1 + drivers/media/platform/qcom/venus/firmware.c | 36 ++++++++++++++++++++++++ drivers/media/platform/qcom/venus/firmware.h | 1 + drivers/media/platform/qcom/venus/hfi_venus.c | 13 +++------ drivers/media/platform/qcom/venus/hfi_venus_io.h | 5 ++++ 5 files changed, 47 insertions(+), 9 deletions(-)