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| author | Alex Deucher <alexander.deucher@amd.com> | 2012-12-04 04:42:37 +0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2012-12-13 02:16:50 +0400 |
| commit | 5aa709be7e60a8296859766935f92bce51465341 (patch) | |
| tree | f82e2f662bc13be3990df791094348bc2778ee19 /drivers/gpu | |
| parent | 94e014ee98e98dedb080ed1cdf510a583ed0514b (diff) | |
| download | linux-5aa709be7e60a8296859766935f92bce51465341.tar.xz | |
drm/radeon/si: add VM CS checker support for CP DMA
Need to verify for copies involving registers.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/radeon/si.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index f6e7815e1860..7e835d94df4a 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -2550,6 +2550,7 @@ static int si_vm_packet3_gfx_check(struct radeon_device *rdev, u32 idx = pkt->idx + 1; u32 idx_value = ib[idx]; u32 start_reg, end_reg, reg, i; + u32 command, info; switch (pkt->opcode) { case PACKET3_NOP: @@ -2649,6 +2650,52 @@ static int si_vm_packet3_gfx_check(struct radeon_device *rdev, return -EINVAL; } break; + case PACKET3_CP_DMA: + command = ib[idx + 4]; + info = ib[idx + 1]; + if (command & PACKET3_CP_DMA_CMD_SAS) { + /* src address space is register */ + if (((info & 0x60000000) >> 29) == 0) { + start_reg = idx_value << 2; + if (command & PACKET3_CP_DMA_CMD_SAIC) { + reg = start_reg; + if (!si_vm_reg_valid(reg)) { + DRM_ERROR("CP DMA Bad SRC register\n"); + return -EINVAL; + } + } else { + for (i = 0; i < (command & 0x1fffff); i++) { + reg = start_reg + (4 * i); + if (!si_vm_reg_valid(reg)) { + DRM_ERROR("CP DMA Bad SRC register\n"); + return -EINVAL; + } + } + } + } + } + if (command & PACKET3_CP_DMA_CMD_DAS) { + /* dst address space is register */ + if (((info & 0x00300000) >> 20) == 0) { + start_reg = ib[idx + 2]; + if (command & PACKET3_CP_DMA_CMD_DAIC) { + reg = start_reg; + if (!si_vm_reg_valid(reg)) { + DRM_ERROR("CP DMA Bad DST register\n"); + return -EINVAL; + } + } else { + for (i = 0; i < (command & 0x1fffff); i++) { + reg = start_reg + (4 * i); + if (!si_vm_reg_valid(reg)) { + DRM_ERROR("CP DMA Bad DST register\n"); + return -EINVAL; + } + } + } + } + } + break; default: DRM_ERROR("Invalid GFX packet3: 0x%x\n", pkt->opcode); return -EINVAL; |