diff options
| -rw-r--r-- | drivers/gpu/drm/radeon/cik.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/r600.c | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_display.c | 12 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_drv.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/si.c | 3 |
7 files changed, 27 insertions, 5 deletions
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c index 2693c57..b625646 100644 --- a/drivers/gpu/drm/radeon/cik.c +++ b/drivers/gpu/drm/radeon/cik.c @@ -7977,7 +7977,8 @@ restart_ih: case 16: /* D5 page flip */ case 18: /* D6 page flip */ DRM_DEBUG("IH: D%d flip\n", ((src_id - 8) >> 1) + 1); - radeon_crtc_handle_flip(rdev, (src_id - 8) >> 1); + if (radeon_use_pflipirq > 0) + radeon_crtc_handle_flip(rdev, (src_id - 8) >> 1); break; case 42: /* HPD hotplug */ switch (src_data) { diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index cb20439..4fedd14 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -4964,7 +4964,8 @@ restart_ih: case 16: /* D5 page flip */ case 18: /* D6 page flip */ DRM_DEBUG("IH: D%d flip\n", ((src_id - 8) >> 1) + 1); - radeon_crtc_handle_flip(rdev, (src_id - 8) >> 1); + if (radeon_use_pflipirq > 0) + radeon_crtc_handle_flip(rdev, (src_id - 8) >> 1); break; case 42: /* HPD hotplug */ switch (src_data) { diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 76e1616..c70a504 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -3923,11 +3923,13 @@ restart_ih: break; case 9: /* D1 pflip */ DRM_DEBUG("IH: D1 flip\n"); - radeon_crtc_handle_flip(rdev, 0); + if (radeon_use_pflipirq > 0) + radeon_crtc_handle_flip(rdev, 0); break; case 11: /* D2 pflip */ DRM_DEBUG("IH: D2 flip\n"); - radeon_crtc_handle_flip(rdev, 1); + if (radeon_use_pflipirq > 0) + radeon_crtc_handle_flip(rdev, 1); break; case 19: /* HPD/DAC hotplug */ switch (src_data) { diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 142cad6..9e1732e 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -104,6 +104,7 @@ extern int radeon_hard_reset; extern int radeon_vm_size; extern int radeon_vm_block_size; extern int radeon_deep_color; +extern int radeon_use_pflipirq; /* * Copy from radeon_drv.h so we don't have to include both and have conflicting diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index a966074..3fdf873 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -293,6 +293,18 @@ void radeon_crtc_handle_vblank(struct radeon_device *rdev, int crtc_id) if (radeon_crtc == NULL) return; + /* Skip the pageflip completion check below (based on polling) on + * asics which reliably support hw pageflip completion irqs. pflip + * irqs are a reliable and race-free method of handling pageflip + * completion detection. A use_pflipirq module parameter < 2 allows + * to override this in case of asics with faulty pflip irqs. + * A module parameter of 0 would only use this polling based path, + * a parameter of 1 would use pflip irq only as a backup to this + * path, as in Linux 3.16. + */ + if ((radeon_use_pflipirq == 2) && ASIC_IS_DCE4(rdev)) + return; + spin_lock_irqsave(&rdev->ddev->event_lock, flags); if (radeon_crtc->flip_status != RADEON_FLIP_SUBMITTED) { DRM_DEBUG_DRIVER("radeon_crtc->flip_status = %d != " diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index 8688e86..a773830 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -178,6 +178,7 @@ int radeon_hard_reset = 0; int radeon_vm_size = 8; int radeon_vm_block_size = -1; int radeon_deep_color = 0; +int radeon_use_pflipirq = 2; MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers"); module_param_named(no_wb, radeon_no_wb, int, 0444); @@ -254,6 +255,9 @@ module_param_named(vm_block_size, radeon_vm_block_size, int, 0444); MODULE_PARM_DESC(deep_color, "Deep Color support (1 = enable, 0 = disable (default))"); module_param_named(deep_color, radeon_deep_color, int, 0444); +MODULE_PARM_DESC(use_pflipirq, "Pflip irqs for pageflip completion (0 = disable, 1 = as fallback, 2 = exclusive (default))"); +module_param_named(use_pflipirq, radeon_use_pflipirq, int, 0444); + static struct pci_device_id pciidlist[] = { radeon_PCI_IDS }; diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index 806bed1..011779b 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -6531,7 +6531,8 @@ restart_ih: case 16: /* D5 page flip */ case 18: /* D6 page flip */ DRM_DEBUG("IH: D%d flip\n", ((src_id - 8) >> 1) + 1); - radeon_crtc_handle_flip(rdev, (src_id - 8) >> 1); + if (radeon_use_pflipirq > 0) + radeon_crtc_handle_flip(rdev, (src_id - 8) >> 1); break; case 42: /* HPD hotplug */ switch (src_data) { |
