On Thu, Aug 23, 2018 at 11:29 PM Vikash Garodia <vgarodia@xxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxx>
> ---
> drivers/media/platform/qcom/venus/core.h | 2 ++
> drivers/media/platform/qcom/venus/firmware.c | 33 ++++++++++++++++++++++++
> drivers/media/platform/qcom/venus/firmware.h | 11 ++++++++
> drivers/media/platform/qcom/venus/hfi_venus.c | 13 +++-------
> drivers/media/platform/qcom/venus/hfi_venus_io.h | 7 +++++
> 5 files changed, 57 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
> index 2f02365..dfd5c10 100644
> --- a/drivers/media/platform/qcom/venus/core.h
> +++ b/drivers/media/platform/qcom/venus/core.h
> @@ -98,6 +98,7 @@ struct venus_caps {
> * @dev: convenience struct device pointer
> * @dev_dec: convenience struct device pointer for decoder device
> * @dev_enc: convenience struct device pointer for encoder device
> + * @no_tz: a flag that suggests presence of trustzone
> * @lock: a lock for this strucure
> * @instances: a list_head of all instances
> * @insts_count: num of instances
> @@ -129,6 +130,7 @@ 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 c4a5778..a9d042e 100644
> --- a/drivers/media/platform/qcom/venus/firmware.c
> +++ b/drivers/media/platform/qcom/venus/firmware.c
> @@ -22,10 +22,43 @@
> #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)
This is making a strong assumption about the size of the FW memory
region, which in practice is not always true (I had to reduce it to
5MB). How about having this as a member of venus_core, which is
initialized in venus_load_fw() from the actual size of the memory
region? You could do this as an extra patch that comes before this
one.
