diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2013-04-16 18:42:15 +0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-04-17 00:15:27 +0400 |
| commit | 2ab91adae722c63d1a4c9a6e414636e34804d792 (patch) | |
| tree | 0e8c4ee18ea895f4eb2a978bc3ebcbc4c5c19ccd /drivers/gpu/drm/radeon/ni.c | |
| parent | 0cd9cb76ae26a19df21abc6f94f5fff141e689c7 (diff) | |
| download | linux-2ab91adae722c63d1a4c9a6e414636e34804d792.tar.xz | |
drm/radeon: re-enable PTE/PDE packet for set_page on cayman/TN
PTE/PDE doesn't support a single update (count = 1). We had
previously disabled it since it we were hitting that case which
let to hangs. The PTE/PDE packet is much more efficient for VM
updates where it can be used.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/ni.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/ni.c | 65 |
1 files changed, 47 insertions, 18 deletions
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index 78aead0ada7b..fd03f318cc1c 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -2079,28 +2079,57 @@ void cayman_vm_set_page(struct radeon_device *rdev, } } } else { - while (count) { - ndw = count * 2; - if (ndw > 0xFFFFE) - ndw = 0xFFFFE; + if ((flags & RADEON_VM_PAGE_SYSTEM) || + (count == 1)) { + while (count) { + ndw = count * 2; + if (ndw > 0xFFFFE) + ndw = 0xFFFFE; + + /* for non-physically contiguous pages (system) */ + ib->ptr[ib->length_dw++] = DMA_PACKET(DMA_PACKET_WRITE, 0, 0, ndw); + ib->ptr[ib->length_dw++] = pe; + ib->ptr[ib->length_dw++] = upper_32_bits(pe) & 0xff; + for (; ndw > 0; ndw -= 2, --count, pe += 8) { + if (flags & RADEON_VM_PAGE_SYSTEM) { + value = radeon_vm_map_gart(rdev, addr); + value &= 0xFFFFFFFFFFFFF000ULL; + } else if (flags & RADEON_VM_PAGE_VALID) { + value = addr; + } else { + value = 0; + } + addr += incr; + value |= r600_flags; + ib->ptr[ib->length_dw++] = value; + ib->ptr[ib->length_dw++] = upper_32_bits(value); + } + } + while (ib->length_dw & 0x7) + ib->ptr[ib->length_dw++] = DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0); + } else { + while (count) { + ndw = count * 2; + if (ndw > 0xFFFFE) + ndw = 0xFFFFE; - /* for non-physically contiguous pages (system) */ - ib->ptr[ib->length_dw++] = DMA_PACKET(DMA_PACKET_WRITE, 0, 0, ndw); - ib->ptr[ib->length_dw++] = pe; - ib->ptr[ib->length_dw++] = upper_32_bits(pe) & 0xff; - for (; ndw > 0; ndw -= 2, --count, pe += 8) { - if (flags & RADEON_VM_PAGE_SYSTEM) { - value = radeon_vm_map_gart(rdev, addr); - value &= 0xFFFFFFFFFFFFF000ULL; - } else if (flags & RADEON_VM_PAGE_VALID) { + if (flags & RADEON_VM_PAGE_VALID) value = addr; - } else { + else value = 0; - } - addr += incr; - value |= r600_flags; - ib->ptr[ib->length_dw++] = value; + /* for physically contiguous pages (vram) */ + ib->ptr[ib->length_dw++] = DMA_PTE_PDE_PACKET(ndw); + ib->ptr[ib->length_dw++] = pe; /* dst addr */ + ib->ptr[ib->length_dw++] = upper_32_bits(pe) & 0xff; + ib->ptr[ib->length_dw++] = r600_flags; /* mask */ + ib->ptr[ib->length_dw++] = 0; + ib->ptr[ib->length_dw++] = value; /* value */ ib->ptr[ib->length_dw++] = upper_32_bits(value); + ib->ptr[ib->length_dw++] = incr; /* increment size */ + ib->ptr[ib->length_dw++] = 0; + pe += ndw * 4; + addr += (ndw / 2) * incr; + count -= ndw / 2; } } while (ib->length_dw & 0x7) |