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tegra_bootloader_debug: dump full carvedout region

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This change dumps the bootloader profiling data from the
complete 64KB carvedout memory which include MB1, MB2 and
HYP profiling data.

Bug 3512531

Change-Id: I22726ec25d61900ecc7a47b6973d069959846fb7
Signed-off-by: Anvesh Salveru <asalveru@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2692615
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2864628
Tested-by: Bharat Nihalani <bnihalani@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Anvesh Salveru
2022-04-05 08:48:19 +05:30
committed by mobile promotions
parent ddc2be88c6
commit a0571a42ae
1 changed files with 45 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

71
drivers/platform/tegra/tegra_bootloader_debug.c
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@@ -74,6 +74,7 @@ struct spi_boot_rx_frame_full {
static spinlock_t tegra_bl_lock; static spinlock_t tegra_bl_lock;
static struct kobject *boot_profiler_kobj; static struct kobject *boot_profiler_kobj;
static void *tegra_bl_mapped_prof_start; static void *tegra_bl_mapped_prof_start;
static void *tegra_bl_mapped_full_carveout;
#ifdef CONFIG_DEBUG_FS #ifdef CONFIG_DEBUG_FS
const uint32_t gr_mb1 = enum_gr_mb1; const uint32_t gr_mb1 = enum_gr_mb1;
@@ -128,6 +129,10 @@ static const struct file_operations boot_cfg_fops = {
* TBD - get this information from DT node * TBD - get this information from DT node
*/ */
#define TEGRA_US_COUNTER_REG 0x0C6B0000 #define TEGRA_US_COUNTER_REG 0x0C6B0000
/* Size is currently hardcoded to 64k
* as QB is using the same size.
*/
#define SIZE_OF_FULL_CARVEOUT (64*1024)
struct profiler_record { struct profiler_record {
char str[MAX_PROFILE_STRLEN + 1]; char str[MAX_PROFILE_STRLEN + 1];
@@ -138,40 +143,39 @@ static ssize_t profiler_show(struct kobject *kobj,
struct kobj_attribute *attr, struct kobj_attribute *attr,
char *buf) char *buf)
{ {
ssize_t ret = 0;
struct profiler_record *profiler_data; struct profiler_record *profiler_data;
int count = 0; int count = 0;
int i = 0; int i = 0;
int prof_data_section_valid = 0; int prof_data_section_valid = 0;
if (!tegra_bl_mapped_prof_start || !tegra_bl_prof_size) { if (!tegra_bl_mapped_full_carveout) {
ret += sprintf(buf + ret, "%s\n", "Error mapping profiling data\n"); pr_err("%s\n", "Error mapping profiling data\n");
return 0; return 0;
} }
profiler_data = (struct profiler_record *)tegra_bl_mapped_prof_start; profiler_data = (struct profiler_record *)tegra_bl_mapped_full_carveout;
count = tegra_bl_prof_size / sizeof(struct profiler_record); count = SIZE_OF_FULL_CARVEOUT / sizeof(struct profiler_record);
i = -1; i = -1;
pr_info("\n");
while (count--) { while (count--) {
i++; i++;
if (!profiler_data[i].timestamp) { if (!profiler_data[i].timestamp) {
if (prof_data_section_valid) { if (prof_data_section_valid) {
ret += sprintf(buf + ret, "\n"); pr_info("\n");
prof_data_section_valid = 0; prof_data_section_valid = 0;
} }
continue; continue;
} }
ret += sprintf(buf + ret, "%-54s\t%16lld", pr_info("%-54s\t%16lld",
profiler_data[i].str, profiler_data[i].timestamp); profiler_data[i].str, profiler_data[i].timestamp);
if (i > 0 && profiler_data[i - 1].timestamp) { if (i > 0 && profiler_data[i - 1].timestamp) {
ret += sprintf(buf + ret, "\t%16lld", pr_cont("\t%16lld",
profiler_data[i].timestamp - profiler_data[i - 1].timestamp); profiler_data[i].timestamp - profiler_data[i - 1].timestamp);
} }
ret += sprintf(buf + ret, "\n");
prof_data_section_valid = 1; prof_data_section_valid = 1;
} }
return ret; return 0;
} }
static struct kobj_attribute profiler_attribute = static struct kobj_attribute profiler_attribute =
@@ -300,8 +304,9 @@ static int dbg_golden_register_open_cpu_bl( __attribute((unused))struct inode *i
static int __init tegra_bootloader_debuginit(void) static int __init tegra_bootloader_debuginit(void)
{ {
void __iomem *ptr_bl_prof_start = NULL; void __iomem *ptr_bl_full_carveout = NULL;
int bl_debug_verify_file_entry; int bl_debug_verify_file_entry;
phys_addr_t tegra_bl_full_carveout;
#ifdef CONFIG_DEBUG_FS #ifdef CONFIG_DEBUG_FS
void __iomem *ptr_bl_debug_data_start = NULL; void __iomem *ptr_bl_debug_data_start = NULL;
void __iomem *ptr_bl_boot_cfg_start = NULL; void __iomem *ptr_bl_boot_cfg_start = NULL;
@@ -417,25 +422,37 @@ static int __init tegra_bootloader_debuginit(void)
goto out_err; goto out_err;
} }
if (tegra_bl_prof_start != 0 /* MB1 guarantees 64kb alignment during allocation,
&& !pfn_valid(__phys_to_pfn(tegra_bl_prof_start))) { * below arithmetic gives address of full carveout
ptr_bl_prof_start = ioremap(tegra_bl_prof_start, tegra_bl_prof_size); */
tegra_bl_full_carveout =
tegra_bl_prof_start & (~(SIZE_OF_FULL_CARVEOUT - 1));
if (tegra_bl_full_carveout != 0
&& !pfn_valid(__phys_to_pfn(tegra_bl_full_carveout))) {
ptr_bl_full_carveout = ioremap(tegra_bl_full_carveout,
SIZE_OF_FULL_CARVEOUT);
WARN_ON(!ptr_bl_prof_start); WARN_ON(!ptr_bl_full_carveout);
if (!ptr_bl_prof_start) { if (!ptr_bl_full_carveout) {
pr_err("%s: Failed to map tegra_bl_prof_start%08x\n", pr_err("%s: Failed to map tegra_bl_full_carveout%08x\n",
__func__, (unsigned int)tegra_bl_prof_start); __func__, (unsigned int)tegra_bl_full_carveout);
goto out_err; goto out_err;
} }
pr_info("Remapped tegra_bl_prof_start(0x%llx) " pr_info("Remapped tegra_bl_full_carveout(0x%llx) "
"to address 0x%llx, size(0x%llx)\n", "to address 0x%llx, size(0x%llx)\n",
(u64)tegra_bl_prof_start, (u64)tegra_bl_full_carveout,
(u64)ptr_bl_prof_start, (u64)ptr_bl_full_carveout,
(u64)tegra_bl_prof_size); (u64)SIZE_OF_FULL_CARVEOUT);
tegra_bl_mapped_prof_start = ptr_bl_prof_start; tegra_bl_mapped_full_carveout = ptr_bl_full_carveout;
} }
tegra_bl_mapped_prof_start = tegra_bl_mapped_full_carveout +
(tegra_bl_prof_start - tegra_bl_full_carveout);
pr_info("tegra_bl_prof_start(0x%llx) size(0x%llx)\n",
(u64)tegra_bl_prof_start,
(u64)tegra_bl_prof_size);
usc = ioremap(TEGRA_US_COUNTER_REG, 4); usc = ioremap(TEGRA_US_COUNTER_REG, 4);
if (!usc) { if (!usc) {
pr_err("Failed to map TEGRA_US_COUNTER_REG\n"); pr_err("Failed to map TEGRA_US_COUNTER_REG\n");
@@ -455,8 +472,8 @@ out_err:
if (ptr_bl_boot_cfg_start) if (ptr_bl_boot_cfg_start)
iounmap(ptr_bl_boot_cfg_start); iounmap(ptr_bl_boot_cfg_start);
#endif #endif
if (ptr_bl_prof_start) if (ptr_bl_full_carveout)
iounmap(ptr_bl_prof_start); iounmap(ptr_bl_full_carveout);
if (boot_profiler_kobj) { if (boot_profiler_kobj) {
sysfs_remove_file(boot_profiler_kobj, sysfs_remove_file(boot_profiler_kobj,
@@ -534,8 +551,8 @@ static void __exit tegra_bl_debuginit_module_exit(void)
if (tegra_bl_mapped_boot_cfg_start) if (tegra_bl_mapped_boot_cfg_start)
iounmap(tegra_bl_mapped_boot_cfg_start); iounmap(tegra_bl_mapped_boot_cfg_start);
#endif #endif
if (tegra_bl_mapped_prof_start) if (tegra_bl_mapped_full_carveout)
iounmap(tegra_bl_mapped_prof_start); iounmap(tegra_bl_mapped_full_carveout);
if (boot_profiler_kobj) { if (boot_profiler_kobj) {
sysfs_remove_file(boot_profiler_kobj, sysfs_remove_file(boot_profiler_kobj,