diff options
author | Terje Bergstrom <tbergstrom@nvidia.com> | 2017-08-08 13:53:25 -0400 |
---|---|---|
committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2017-09-12 16:00:19 -0400 |
commit | 89772b03cb093b3556dd4803e5a8deee60046ac9 (patch) | |
tree | c609de388b57161e9bb58ff21ef5aaf7ab663a5e /drivers/gpu/nvgpu/gp106/xve_gp106.c | |
parent | b610bb95108afe54895219e06859cf241fabc9db (diff) |
gpu: nvgpu: Move XVE debugfs code to Linux module
Move XVE debugfs initialization code to live under common/linux.
JIRA NVGPU-62
Change-Id: Ic6677511d249bc0a2455dde01db5b230afc70bb1
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1535133
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/gp106/xve_gp106.c')
-rw-r--r-- | drivers/gpu/nvgpu/gp106/xve_gp106.c | 170 |
1 files changed, 6 insertions, 164 deletions
diff --git a/drivers/gpu/nvgpu/gp106/xve_gp106.c b/drivers/gpu/nvgpu/gp106/xve_gp106.c index a3514fc0..3a84ca17 100644 --- a/drivers/gpu/nvgpu/gp106/xve_gp106.c +++ b/drivers/gpu/nvgpu/gp106/xve_gp106.c | |||
@@ -14,17 +14,13 @@ | |||
14 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | 14 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
15 | */ | 15 | */ |
16 | 16 | ||
17 | #ifdef CONFIG_DEBUG_FS | ||
18 | #include <linux/debugfs.h> | ||
19 | #include <linux/uaccess.h> | ||
20 | #endif | ||
21 | |||
22 | #include "gk20a/gk20a.h" | 17 | #include "gk20a/gk20a.h" |
23 | #include "gm206/bios_gm206.h" | 18 | #include "gm206/bios_gm206.h" |
24 | #include "gp106/xve_gp106.h" | 19 | #include "gp106/xve_gp106.h" |
25 | #include "common/linux/os_linux.h" | 20 | #include "common/linux/os_linux.h" |
26 | 21 | ||
27 | #include <nvgpu/bug.h> | 22 | #include <nvgpu/bug.h> |
23 | #include <nvgpu/xve.h> | ||
28 | 24 | ||
29 | #include <nvgpu/hw/gp106/hw_xp_gp106.h> | 25 | #include <nvgpu/hw/gp106/hw_xp_gp106.h> |
30 | #include <nvgpu/hw/gp106/hw_xve_gp106.h> | 26 | #include <nvgpu/hw/gp106/hw_xve_gp106.h> |
@@ -475,165 +471,6 @@ void xve_available_speeds_gp106(struct gk20a *g, u32 *speed_mask) | |||
475 | *speed_mask = GPU_XVE_SPEED_2P5 | GPU_XVE_SPEED_5P0; | 471 | *speed_mask = GPU_XVE_SPEED_2P5 | GPU_XVE_SPEED_5P0; |
476 | } | 472 | } |
477 | 473 | ||
478 | #ifdef CONFIG_DEBUG_FS | ||
479 | static ssize_t xve_link_speed_write(struct file *filp, | ||
480 | const char __user *buff, | ||
481 | size_t len, loff_t *off) | ||
482 | { | ||
483 | struct gk20a *g = ((struct seq_file *)filp->private_data)->private; | ||
484 | char kbuff[16]; | ||
485 | u32 buff_size, check_len; | ||
486 | u32 link_speed = 0; | ||
487 | int ret; | ||
488 | |||
489 | buff_size = min_t(size_t, 16, len); | ||
490 | |||
491 | memset(kbuff, 0, 16); | ||
492 | if (copy_from_user(kbuff, buff, buff_size)) | ||
493 | return -EFAULT; | ||
494 | |||
495 | check_len = strlen("Gen1"); | ||
496 | if (strncmp(kbuff, "Gen1", check_len) == 0) | ||
497 | link_speed = GPU_XVE_SPEED_2P5; | ||
498 | else if (strncmp(kbuff, "Gen2", check_len) == 0) | ||
499 | link_speed = GPU_XVE_SPEED_5P0; | ||
500 | else if (strncmp(kbuff, "Gen3", check_len) == 0) | ||
501 | link_speed = GPU_XVE_SPEED_8P0; | ||
502 | else | ||
503 | nvgpu_err(g, "%s: Unknown PCIe speed: %s", | ||
504 | __func__, kbuff); | ||
505 | |||
506 | if (!link_speed) | ||
507 | return -EINVAL; | ||
508 | |||
509 | /* Brief pause... To help rate limit this. */ | ||
510 | nvgpu_msleep(250); | ||
511 | |||
512 | /* | ||
513 | * And actually set the speed. Yay. | ||
514 | */ | ||
515 | ret = g->ops.xve.set_speed(g, link_speed); | ||
516 | if (ret) | ||
517 | return ret; | ||
518 | |||
519 | return len; | ||
520 | } | ||
521 | |||
522 | static int xve_link_speed_show(struct seq_file *s, void *unused) | ||
523 | { | ||
524 | struct gk20a *g = s->private; | ||
525 | u32 speed; | ||
526 | int err; | ||
527 | |||
528 | err = g->ops.xve.get_speed(g, &speed); | ||
529 | if (err) | ||
530 | return err; | ||
531 | |||
532 | seq_printf(s, "Current PCIe speed:\n %s\n", xve_speed_to_str(speed)); | ||
533 | |||
534 | return 0; | ||
535 | } | ||
536 | |||
537 | static int xve_link_speed_open(struct inode *inode, struct file *file) | ||
538 | { | ||
539 | return single_open(file, xve_link_speed_show, inode->i_private); | ||
540 | } | ||
541 | |||
542 | static const struct file_operations xve_link_speed_fops = { | ||
543 | .open = xve_link_speed_open, | ||
544 | .read = seq_read, | ||
545 | .write = xve_link_speed_write, | ||
546 | .llseek = seq_lseek, | ||
547 | .release = single_release, | ||
548 | }; | ||
549 | |||
550 | static int xve_available_speeds_show(struct seq_file *s, void *unused) | ||
551 | { | ||
552 | struct gk20a *g = s->private; | ||
553 | u32 available_speeds; | ||
554 | |||
555 | g->ops.xve.available_speeds(g, &available_speeds); | ||
556 | |||
557 | seq_puts(s, "Available PCIe bus speeds:\n"); | ||
558 | if (available_speeds & GPU_XVE_SPEED_2P5) | ||
559 | seq_puts(s, " Gen1\n"); | ||
560 | if (available_speeds & GPU_XVE_SPEED_5P0) | ||
561 | seq_puts(s, " Gen2\n"); | ||
562 | if (available_speeds & GPU_XVE_SPEED_8P0) | ||
563 | seq_puts(s, " Gen3\n"); | ||
564 | |||
565 | return 0; | ||
566 | } | ||
567 | |||
568 | static int xve_available_speeds_open(struct inode *inode, struct file *file) | ||
569 | { | ||
570 | return single_open(file, xve_available_speeds_show, inode->i_private); | ||
571 | } | ||
572 | |||
573 | static const struct file_operations xve_available_speeds_fops = { | ||
574 | .open = xve_available_speeds_open, | ||
575 | .read = seq_read, | ||
576 | .llseek = seq_lseek, | ||
577 | .release = single_release, | ||
578 | }; | ||
579 | |||
580 | static int xve_link_control_status_show(struct seq_file *s, void *unused) | ||
581 | { | ||
582 | struct gk20a *g = s->private; | ||
583 | u32 link_status; | ||
584 | |||
585 | link_status = g->ops.xve.xve_readl(g, xve_link_control_status_r()); | ||
586 | seq_printf(s, "0x%08x\n", link_status); | ||
587 | |||
588 | return 0; | ||
589 | } | ||
590 | |||
591 | static int xve_link_control_status_open(struct inode *inode, struct file *file) | ||
592 | { | ||
593 | return single_open(file, xve_link_control_status_show, inode->i_private); | ||
594 | } | ||
595 | |||
596 | static const struct file_operations xve_link_control_status_fops = { | ||
597 | .open = xve_link_control_status_open, | ||
598 | .read = seq_read, | ||
599 | .llseek = seq_lseek, | ||
600 | .release = single_release, | ||
601 | }; | ||
602 | #endif | ||
603 | |||
604 | int xve_sw_init_gp106(struct gk20a *g) | ||
605 | { | ||
606 | int err = -ENODEV; | ||
607 | #ifdef CONFIG_DEBUG_FS | ||
608 | struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g); | ||
609 | struct dentry *gpu_root = l->debugfs; | ||
610 | |||
611 | l->debugfs_xve = debugfs_create_dir("xve", gpu_root); | ||
612 | if (IS_ERR_OR_NULL(l->debugfs_xve)) | ||
613 | goto fail; | ||
614 | |||
615 | /* | ||
616 | * These are just debug nodes. If they fail to get made it's not worth | ||
617 | * worrying the higher level SW. | ||
618 | */ | ||
619 | debugfs_create_file("link_speed", S_IRUGO, | ||
620 | l->debugfs_xve, g, | ||
621 | &xve_link_speed_fops); | ||
622 | debugfs_create_file("available_speeds", S_IRUGO, | ||
623 | l->debugfs_xve, g, | ||
624 | &xve_available_speeds_fops); | ||
625 | debugfs_create_file("link_control_status", S_IRUGO, | ||
626 | l->debugfs_xve, g, | ||
627 | &xve_link_control_status_fops); | ||
628 | |||
629 | err = 0; | ||
630 | fail: | ||
631 | return err; | ||
632 | #else | ||
633 | return err; | ||
634 | #endif | ||
635 | } | ||
636 | |||
637 | #if defined(CONFIG_PCI_MSI) | 474 | #if defined(CONFIG_PCI_MSI) |
638 | void xve_rearm_msi_gp106(struct gk20a *g) | 475 | void xve_rearm_msi_gp106(struct gk20a *g) |
639 | { | 476 | { |
@@ -653,3 +490,8 @@ void xve_disable_shadow_rom_gp106(struct gk20a *g) | |||
653 | g->ops.xve.xve_writel(g, xve_rom_ctrl_r(), | 490 | g->ops.xve.xve_writel(g, xve_rom_ctrl_r(), |
654 | xve_rom_ctrl_rom_shadow_disabled_f()); | 491 | xve_rom_ctrl_rom_shadow_disabled_f()); |
655 | } | 492 | } |
493 | |||
494 | u32 xve_get_link_control_status(struct gk20a *g) | ||
495 | { | ||
496 | return g->ops.xve.xve_readl(g, xve_link_control_status_r()); | ||
497 | } | ||