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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-29 20:49:12 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-29 20:49:12 -0800 |
commit | 9b0cd304f26b9fca140de15deeac2bf357d1f388 (patch) | |
tree | 03a0d74614865a5b776b2a98a433232013b1d369 /drivers/gpu/drm/radeon/ni_dma.c | |
parent | ca2a650f3dfdc30d71d21bcbb04d2d057779f3f9 (diff) | |
parent | ef64cf9d06049e4e9df661f3be60b217e476bee1 (diff) | |
download | linux-next-9b0cd304f26b9fca140de15deeac2bf357d1f388.tar.gz |
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
"Been a bit busy, first week of kids school, and waiting on other trees
to go in before I could send this, so its a bit later than I'd
normally like.
Highlights:
- core:
timestamp fixes, lots of misc cleanups
- new drivers:
bochs virtual vga
- vmwgfx:
major overhaul for their nextgen virt gpu.
- i915:
runtime D3 on HSW, watermark fixes, power well work, fbc fixes,
bdw is no longer prelim.
- nouveau:
gk110/208 acceleration, more pm groundwork, old overlay support
- radeon:
dpm rework and clockgating for CIK, pci config reset, big endian
fixes
- tegra:
panel support and DSI support, build as module, prime.
- armada, omap, gma500, rcar, exynos, mgag200, cirrus, ast:
fixes
- msm:
hdmi support for mdp5"
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (595 commits)
drm/nouveau: resume display if any later suspend bits fail
drm/nouveau: fix lock unbalance in nouveau_crtc_page_flip
drm/nouveau: implement hooks for needed for drm vblank timestamping support
drm/nouveau/disp: add a method to fetch info needed by drm vblank timestamping
drm/nv50: fill in crtc mode struct members from crtc_mode_fixup
drm/radeon/dce8: workaround for atom BlankCrtc table
drm/radeon/DCE4+: clear bios scratch dpms bit (v2)
drm/radeon: set si_notify_smc_display_change properly
drm/radeon: fix DAC interrupt handling on DCE5+
drm/radeon: clean up active vram sizing
drm/radeon: skip async dma init on r6xx
drm/radeon/runpm: don't runtime suspend non-PX cards
drm/radeon: add ring to fence trace functions
drm/radeon: add missing trace point
drm/radeon: fix VMID use tracking
drm: ast,cirrus,mgag200: use drm_can_sleep
drm/gma500: Lock struct_mutex around cursor updates
drm/i915: Fix the offset issue for the stolen GEM objects
DRM: armada: fix missing DRM_KMS_FB_HELPER select
drm/i915: Decouple GPU error reporting from ring initialisation
...
Diffstat (limited to 'drivers/gpu/drm/radeon/ni_dma.c')
-rw-r--r-- | drivers/gpu/drm/radeon/ni_dma.c | 77 |
1 files changed, 75 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/ni_dma.c b/drivers/gpu/drm/radeon/ni_dma.c index bdeb65ed3658..7cf96b15377f 100644 --- a/drivers/gpu/drm/radeon/ni_dma.c +++ b/drivers/gpu/drm/radeon/ni_dma.c @@ -43,6 +43,75 @@ u32 cayman_gpu_check_soft_reset(struct radeon_device *rdev); */ /** + * cayman_dma_get_rptr - get the current read pointer + * + * @rdev: radeon_device pointer + * @ring: radeon ring pointer + * + * Get the current rptr from the hardware (cayman+). + */ +uint32_t cayman_dma_get_rptr(struct radeon_device *rdev, + struct radeon_ring *ring) +{ + u32 rptr, reg; + + if (rdev->wb.enabled) { + rptr = rdev->wb.wb[ring->rptr_offs/4]; + } else { + if (ring->idx == R600_RING_TYPE_DMA_INDEX) + reg = DMA_RB_RPTR + DMA0_REGISTER_OFFSET; + else + reg = DMA_RB_RPTR + DMA1_REGISTER_OFFSET; + + rptr = RREG32(reg); + } + + return (rptr & 0x3fffc) >> 2; +} + +/** + * cayman_dma_get_wptr - get the current write pointer + * + * @rdev: radeon_device pointer + * @ring: radeon ring pointer + * + * Get the current wptr from the hardware (cayman+). + */ +uint32_t cayman_dma_get_wptr(struct radeon_device *rdev, + struct radeon_ring *ring) +{ + u32 reg; + + if (ring->idx == R600_RING_TYPE_DMA_INDEX) + reg = DMA_RB_WPTR + DMA0_REGISTER_OFFSET; + else + reg = DMA_RB_WPTR + DMA1_REGISTER_OFFSET; + + return (RREG32(reg) & 0x3fffc) >> 2; +} + +/** + * cayman_dma_set_wptr - commit the write pointer + * + * @rdev: radeon_device pointer + * @ring: radeon ring pointer + * + * Write the wptr back to the hardware (cayman+). + */ +void cayman_dma_set_wptr(struct radeon_device *rdev, + struct radeon_ring *ring) +{ + u32 reg; + + if (ring->idx == R600_RING_TYPE_DMA_INDEX) + reg = DMA_RB_WPTR + DMA0_REGISTER_OFFSET; + else + reg = DMA_RB_WPTR + DMA1_REGISTER_OFFSET; + + WREG32(reg, (ring->wptr << 2) & 0x3fffc); +} + +/** * cayman_dma_ring_ib_execute - Schedule an IB on the DMA engine * * @rdev: radeon_device pointer @@ -88,7 +157,9 @@ void cayman_dma_stop(struct radeon_device *rdev) { u32 rb_cntl; - radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size); + if ((rdev->asic->copy.copy_ring_index == R600_RING_TYPE_DMA_INDEX) || + (rdev->asic->copy.copy_ring_index == CAYMAN_RING_TYPE_DMA1_INDEX)) + radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size); /* dma0 */ rb_cntl = RREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET); @@ -190,7 +261,9 @@ int cayman_dma_resume(struct radeon_device *rdev) } } - radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size); + if ((rdev->asic->copy.copy_ring_index == R600_RING_TYPE_DMA_INDEX) || + (rdev->asic->copy.copy_ring_index == CAYMAN_RING_TYPE_DMA1_INDEX)) + radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size); return 0; } |