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platform: tegra: adsp: share exception data

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adding ability for ADSP to share data when an exception occurs
on the ADSP. The data is shared through the shared memory across
the host.

adding shared exception data prints on host side for debugging.

bug 1868578

Change-Id: I6645e8ae6ab73e5c9df8374f583dacbed4615536
Signed-off-by: Prateek Patel <prpatel@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1611260
Reviewed-by: Ajay Nandakumar M <anandakumarm@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
This commit is contained in:
Prateek Patel
2017-11-30 04:27:03 -08:00
committed by Laxman Dewangan
parent 68dd548b9e
commit 9de7361de1
3 changed files with 108 additions and 0 deletions
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29
drivers/platform/tegra/nvadsp/adsp_shared_struct.h
View File

@@ -129,6 +129,34 @@ struct nvadsp_os_args {
char reserved[128];
} __packed;
/* ARM MODE REGS */
struct arm_mode_regs_shared {
uint32_t fiq_r13, fiq_r14;
uint32_t irq_r13, irq_r14;
uint32_t svc_r13, svc_r14;
uint32_t abt_r13, abt_r14;
uint32_t und_r13, und_r14;
uint32_t sys_r13, sys_r14;
} __packed;
/* ARM FAULT FRAME */
struct arm_fault_frame_shared {
uint32_t spsr;
uint32_t usp;
uint32_t ulr;
uint32_t r[13];
uint32_t pc;
} __packed;
/* ADSP ARM EXCEPTION CONTEXT */
struct nvadsp_exception_context {
struct arm_fault_frame_shared frame;
struct arm_mode_regs_shared regs;
uint32_t stack_addr;
uint32_t stack_dump[32];
uint32_t exception_reason;
} __packed;
/* ADSP OS info/status. Keep in sync with firmware. */
#define MAX_OS_VERSION_BUF 32
struct nvadsp_os_info {
@@ -141,6 +169,7 @@ struct nvadsp_shared_mem {
struct nvadsp_app_shared_msg_pool app_shared_msg_pool;
struct nvadsp_os_args os_args;
struct nvadsp_os_info os_info;
struct nvadsp_exception_context exception_context;
} __packed;

68
drivers/platform/tegra/nvadsp/os.c
View File

@@ -1176,6 +1176,72 @@ static void print_agic_irq_states(void)
}
}
static void print_arm_mode_regs(void)
{
struct nvadsp_exception_context *excep_context;
struct arm_fault_frame_shared *shared_frame;
struct arm_mode_regs_shared *shared_regs;
struct nvadsp_shared_mem *shared_mem;
struct device *dev = &priv.pdev->dev;
struct nvadsp_drv_data *drv_data;
drv_data = platform_get_drvdata(priv.pdev);
shared_mem = drv_data->shared_adsp_os_data;
excep_context = &shared_mem->exception_context;
shared_frame = &excep_context->frame;
shared_regs = &excep_context->regs;
dev_err(dev, "dumping arm mode register data...\n");
dev_err(dev, "%c fiq r13 0x%08x r14 0x%08x\n",
((shared_frame->spsr & MODE_MASK) == MODE_FIQ) ? '*' : ' ',
shared_regs->fiq_r13, shared_regs->fiq_r14);
dev_err(dev, "%c irq r13 0x%08x r14 0x%08x\n",
((shared_frame->spsr & MODE_MASK) == MODE_IRQ) ? '*' : ' ',
shared_regs->irq_r13, shared_regs->irq_r14);
dev_err(dev, "%c svc r13 0x%08x r14 0x%08x\n",
((shared_frame->spsr & MODE_MASK) == MODE_SVC) ? '*' : ' ',
shared_regs->svc_r13, shared_regs->svc_r14);
dev_err(dev, "%c und r13 0x%08x r14 0x%08x\n",
((shared_frame->spsr & MODE_MASK) == MODE_UND) ? '*' : ' ',
shared_regs->und_r13, shared_regs->und_r14);
dev_err(dev, "%c sys r13 0x%08x r14 0x%08x\n",
((shared_frame->spsr & MODE_MASK) == MODE_SYS) ? '*' : ' ',
shared_regs->sys_r13, shared_regs->sys_r14);
dev_err(dev, "%c abt r13 0x%08x r14 0x%08x\n",
((shared_frame->spsr & MODE_MASK) == MODE_ABT) ? '*' : ' ',
shared_regs->abt_r13, shared_regs->abt_r14);
}
static void print_arm_fault_frame(void)
{
struct nvadsp_exception_context *excep_context;
struct arm_fault_frame_shared *shared_frame;
struct nvadsp_shared_mem *shared_mem;
struct device *dev = &priv.pdev->dev;
struct nvadsp_drv_data *drv_data;
drv_data = platform_get_drvdata(priv.pdev);
shared_mem = drv_data->shared_adsp_os_data;
excep_context = &shared_mem->exception_context;
shared_frame = &excep_context->frame;
dev_err(dev, "dumping fault frame...\n");
dev_err(dev, "r0 0x%08x r1 0x%08x r2 0x%08x r3 0x%08x\n",
shared_frame->r[0], shared_frame->r[1], shared_frame->r[2],
shared_frame->r[3]);
dev_err(dev, "r4 0x%08x r5 0x%08x r6 0x%08x r7 0x%08x\n",
shared_frame->r[4], shared_frame->r[5], shared_frame->r[6],
shared_frame->r[7]);
dev_err(dev, "r8 0x%08x r9 0x%08x r10 0x%08x r11 0x%08x\n",
shared_frame->r[8], shared_frame->r[9], shared_frame->r[10],
shared_frame->r[11]);
dev_err(dev, "r12 0x%08x usp 0x%08x ulr 0x%08x pc 0x%08x\n",
shared_frame->r[12], shared_frame->usp, shared_frame->ulr,
shared_frame->pc);
dev_err(dev, "spsr 0x%08x\n", shared_frame->spsr);
}
static void dump_thread_name(struct platform_device *pdev, u32 val)
{
dev_info(&pdev->dev, "%s: adsp current thread: %c%c%c%c\n",
@@ -1378,6 +1444,8 @@ void dump_adsp_sys(void)
dump_adsp_logs();
dump_mailbox_regs();
print_arm_fault_frame();
print_arm_mode_regs();
get_adsp_state();
if (nvadsp_tegra_adma_dump_ch_reg)
(*nvadsp_tegra_adma_dump_ch_reg)();

11
drivers/platform/tegra/nvadsp/os.h
View File

@@ -54,6 +54,17 @@
#define MIN_ADSP_FREQ 38400000lu /* in Hz */
/* macros used to find the current mode of ADSP */
#define MODE_MASK 0x1f
#define MODE_USR 0x10
#define MODE_FIQ 0x11
#define MODE_IRQ 0x12
#define MODE_SVC 0x13
#define MODE_MON 0x16
#define MODE_ABT 0x17
#define MODE_UND 0x1b
#define MODE_SYS 0x1f
enum adsp_os_cmd {
ADSP_OS_BOOT_COMPLETE,
ADSP_OS_SUSPEND,