| Message ID | 1526556740-25494-4-git-send-email-vgarodia@codeaurora.org (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Delegated to: | Andy Gross |
| Headers | show |
Hi Vikash, On 05/17/2018 02:32 PM, Vikash Garodia wrote: > In order to invoke scm calls, ensure that the platform > has the required support to invoke the scm calls in > secure world. This code is in preparation to add PIL > functionality in venus driver. > > Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org> > --- > drivers/media/platform/qcom/venus/hfi_venus.c | 26 +++++++++++++++++++------- > 1 file changed, 19 insertions(+), 7 deletions(-) > > diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c > index f61d34b..9bcce94 100644 > --- a/drivers/media/platform/qcom/venus/hfi_venus.c > +++ b/drivers/media/platform/qcom/venus/hfi_venus.c > @@ -27,6 +27,7 @@ > #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 > @@ -570,13 +571,19 @@ static int venus_halt_axi(struct venus_hfi_device *hdev) > static int venus_power_off(struct venus_hfi_device *hdev) > { > int ret; > + void __iomem *reg_base; > > if (!hdev->power_enabled) > return 0; > > - ret = qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_SUSPEND, 0); > - if (ret) > - return ret; > + if (qcom_scm_is_available()) { > + ret = qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_SUSPEND, 0); I think it will be clearer if we abstract qcom_scm_set_remote_state to something like venus_set_state(SUSPEND|RESUME) in firmware.c and export the functions to be used here.
On Tue, May 22, 2018 at 04:04:51PM +0300, Stanimir Varbanov wrote: > Hi Vikash, > > On 05/17/2018 02:32 PM, Vikash Garodia wrote: > > In order to invoke scm calls, ensure that the platform > > has the required support to invoke the scm calls in > > secure world. This code is in preparation to add PIL > > functionality in venus driver. > > > > Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org> > > --- > > drivers/media/platform/qcom/venus/hfi_venus.c | 26 +++++++++++++++++++------- > > 1 file changed, 19 insertions(+), 7 deletions(-) > > > > diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c > > index f61d34b..9bcce94 100644 > > --- a/drivers/media/platform/qcom/venus/hfi_venus.c > > +++ b/drivers/media/platform/qcom/venus/hfi_venus.c > > @@ -27,6 +27,7 @@ > > #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 > > @@ -570,13 +571,19 @@ static int venus_halt_axi(struct venus_hfi_device *hdev) > > static int venus_power_off(struct venus_hfi_device *hdev) > > { > > int ret; > > + void __iomem *reg_base; > > > > if (!hdev->power_enabled) > > return 0; > > > > - ret = qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_SUSPEND, 0); > > - if (ret) > > - return ret; > > + if (qcom_scm_is_available()) { > > + ret = qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_SUSPEND, 0); > > I think it will be clearer if we abstract qcom_scm_set_remote_state to > something like venus_set_state(SUSPEND|RESUME) in firmware.c and export > the functions to be used here. This specific function is a little odd because the SCM function got overloaded and used as a hardware workaround for the adreno a5xx zap shader. When we added it for the GPU we knew the day would come that we would need it for Venus so we kept the name purposely generic. You can wrap if if you want but just know that there are other non video entities out there using it. Jordan
Hi Jordan, On 22.05.2018 22:50, Jordan Crouse wrote: > On Tue, May 22, 2018 at 04:04:51PM +0300, Stanimir Varbanov wrote: >> Hi Vikash, >> >> On 05/17/2018 02:32 PM, Vikash Garodia wrote: >>> In order to invoke scm calls, ensure that the platform >>> has the required support to invoke the scm calls in >>> secure world. This code is in preparation to add PIL >>> functionality in venus driver. >>> >>> Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org> >>> --- >>> drivers/media/platform/qcom/venus/hfi_venus.c | 26 +++++++++++++++++++------- >>> 1 file changed, 19 insertions(+), 7 deletions(-) >>> >>> diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c >>> index f61d34b..9bcce94 100644 >>> --- a/drivers/media/platform/qcom/venus/hfi_venus.c >>> +++ b/drivers/media/platform/qcom/venus/hfi_venus.c >>> @@ -27,6 +27,7 @@ >>> #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 >>> @@ -570,13 +571,19 @@ static int venus_halt_axi(struct venus_hfi_device *hdev) >>> static int venus_power_off(struct venus_hfi_device *hdev) >>> { >>> int ret; >>> + void __iomem *reg_base; >>> >>> if (!hdev->power_enabled) >>> return 0; >>> >>> - ret = qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_SUSPEND, 0); >>> - if (ret) >>> - return ret; >>> + if (qcom_scm_is_available()) { >>> + ret = qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_SUSPEND, 0); >> >> I think it will be clearer if we abstract qcom_scm_set_remote_state to >> something like venus_set_state(SUSPEND|RESUME) in firmware.c and export >> the functions to be used here. > > This specific function is a little odd because the SCM function got overloaded > and used as a hardware workaround for the adreno a5xx zap shader. > > When we added it for the GPU we knew the day would come that we would need it > for Venus so we kept the name purposely generic. You can wrap if if you want > but just know that there are other non video entities out there using it. Sorry I wasn't clear, by abstract it I meant to introduce a new venus_set_state function in venus/firmware.c where we'll select tz/non-tz functions for suspend / resume depending on the configuration. regards, Stan -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi Stan, On 2018-05-23 02:27, Stanimir Varbanov wrote: > Hi Jordan, > > On 22.05.2018 22:50, Jordan Crouse wrote: >> On Tue, May 22, 2018 at 04:04:51PM +0300, Stanimir Varbanov wrote: >>> Hi Vikash, >>> >>> On 05/17/2018 02:32 PM, Vikash Garodia wrote: >>>> In order to invoke scm calls, ensure that the platform >>>> has the required support to invoke the scm calls in >>>> secure world. This code is in preparation to add PIL >>>> functionality in venus driver. >>>> >>>> Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org> >>>> --- >>>> drivers/media/platform/qcom/venus/hfi_venus.c | 26 >>>> +++++++++++++++++++------- >>>> 1 file changed, 19 insertions(+), 7 deletions(-) >>>> >>>> diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c >>>> b/drivers/media/platform/qcom/venus/hfi_venus.c >>>> index f61d34b..9bcce94 100644 >>>> --- a/drivers/media/platform/qcom/venus/hfi_venus.c >>>> +++ b/drivers/media/platform/qcom/venus/hfi_venus.c >>>> @@ -27,6 +27,7 @@ >>>> #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 >>>> @@ -570,13 +571,19 @@ static int venus_halt_axi(struct >>>> venus_hfi_device *hdev) >>>> static int venus_power_off(struct venus_hfi_device *hdev) >>>> { >>>> int ret; >>>> + void __iomem *reg_base; >>>> if (!hdev->power_enabled) >>>> return 0; >>>> - ret = qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_SUSPEND, 0); >>>> - if (ret) >>>> - return ret; >>>> + if (qcom_scm_is_available()) { >>>> + ret = qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_SUSPEND, 0); >>> >>> I think it will be clearer if we abstract qcom_scm_set_remote_state >>> to >>> something like venus_set_state(SUSPEND|RESUME) in firmware.c and >>> export >>> the functions to be used here. >> >> This specific function is a little odd because the SCM function got >> overloaded >> and used as a hardware workaround for the adreno a5xx zap shader. >> >> When we added it for the GPU we knew the day would come that we would >> need it >> for Venus so we kept the name purposely generic. You can wrap if if >> you want >> but just know that there are other non video entities out there using >> it. > > Sorry I wasn't clear, by abstract it I meant to introduce a new > venus_set_state function in venus/firmware.c where we'll select > tz/non-tz functions for suspend / resume depending on the > configuration. Yes, that's a good idea to abstract the decision to use tz or non-tz way as much as possible to firmware.c. Will add this in my next patch. > regards, > Stan -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c index f61d34b..9bcce94 100644 --- a/drivers/media/platform/qcom/venus/hfi_venus.c +++ b/drivers/media/platform/qcom/venus/hfi_venus.c @@ -27,6 +27,7 @@ #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 @@ -570,13 +571,19 @@ static int venus_halt_axi(struct venus_hfi_device *hdev) static int venus_power_off(struct venus_hfi_device *hdev) { int ret; + void __iomem *reg_base; if (!hdev->power_enabled) return 0; - ret = qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_SUSPEND, 0); - if (ret) - return ret; + if (qcom_scm_is_available()) { + ret = qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_SUSPEND, 0); + if (ret) + return ret; + } else { + reg_base = hdev->core->base; + writel_relaxed(1, reg_base + WRAPPER_A9SS_SW_RESET); + } ret = venus_halt_axi(hdev); if (ret) @@ -594,9 +601,13 @@ 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); - if (ret) - goto err; + if (qcom_scm_is_available()) { + ret = qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_RESUME, 0); + if (ret) + goto err; + } else { + venus_reset_hw(hdev->core); + } ret = venus_run(hdev); if (ret) @@ -607,7 +618,8 @@ static int venus_power_on(struct venus_hfi_device *hdev) return 0; err_suspend: - qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_SUSPEND, 0); + if (qcom_scm_is_available()) + qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_SUSPEND, 0); err: hdev->power_enabled = false; return ret;
In order to invoke scm calls, ensure that the platform has the required support to invoke the scm calls in secure world. This code is in preparation to add PIL functionality in venus driver. Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org> --- drivers/media/platform/qcom/venus/hfi_venus.c | 26 +++++++++++++++++++------- 1 file changed, 19 insertions(+), 7 deletions(-)