[v3,1/4] venus: firmware: add routine to reset ARM9
Commit Message
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(-)
Comments
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
@@ -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;
@@ -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;
@@ -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
@@ -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;
@@ -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)