diff options
| author |   Alex Deucher <alexander.deucher@amd.com> | 2016-09-23 13:10:49 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-03-29 23:54:17 -0400 |
| commit | 43bf11bd9231ad06bd1d91c847beda52b88bc6e0 (patch) | |
| tree | c9a150fb340728c58a5d0324bda1b8d305124f71 /drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | |
| parent | amdgpu: detect if we are using atomfirmware or atombios for vbios (v2) (diff) | |
| download | linux-dev-43bf11bd9231ad06bd1d91c847beda52b88bc6e0.tar.xz linux-dev-43bf11bd9231ad06bd1d91c847beda52b88bc6e0.zip | |
drm/amdgpu: move atom scratch setup into amdgpu_atombios.c
There will be a slightly different version for atomfirmware.
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c index 56a86dd5789e..f52b1bf3d3d9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c @@ -1748,3 +1748,31 @@ void amdgpu_atombios_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le) memcpy(dst, src, num_bytes); #endif } + +int amdgpu_atombios_allocate_fb_scratch(struct amdgpu_device *adev) +{ + struct atom_context *ctx = adev->mode_info.atom_context; + int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware); + uint16_t data_offset; + int usage_bytes = 0; + struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage; + + if (amdgpu_atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) { + firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset); + + DRM_DEBUG("atom firmware requested %08x %dkb\n", + le32_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware), + le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb)); + + usage_bytes = le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb) * 1024; + } + ctx->scratch_size_bytes = 0; + if (usage_bytes == 0) + usage_bytes = 20 * 1024; + /* allocate some scratch memory */ + ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL); + if (!ctx->scratch) + return -ENOMEM; + ctx->scratch_size_bytes = usage_bytes; + return 0; +} |