git/linux-net
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/ synced 2026-04-18 06:33:43 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amdgpu: Basic emulation support

Browse Source 
Add amdgpu_emu_mode module parameter to control the emulation mode
Avoid vbios operation on emulation since there is no vbios post duirng emulation,
use the common hw_init to simulate the post

Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com>
Acked-By: Alex Deucher <alexander.deucher@amd.com>
Acked-By: Christian Konig <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Shaoyun Liu
2018-02-01 17:37:50 -05:00
committed by Alex Deucher
parent 6c24a85d23
commit bfca028927
3 changed files with 28 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@@ -1310,6 +1310,20 @@ static int amdgpu_device_ip_init(struct amdgpu_device *adev)
return r;
}
adev->ip_blocks[i].status.sw = true;
if (amdgpu_emu_mode == 1) {
/* Need to do common hw init first on emulation */
if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON) {
r = adev->ip_blocks[i].version->funcs->hw_init((void *)adev);
if (r) {
DRM_ERROR("hw_init of IP block <%s> failed %d\n",
adev->ip_blocks[i].version->funcs->name, r);
return r;
}
adev->ip_blocks[i].status.hw = true;
}
}
/* need to do gmc hw init early so we can allocate gpu mem */
if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) {
r = amdgpu_device_vram_scratch_init(adev);
@@ -1343,8 +1357,7 @@ static int amdgpu_device_ip_init(struct amdgpu_device *adev)
for (i = 0; i < adev->num_ip_blocks; i++) {
if (!adev->ip_blocks[i].status.sw)
continue;
/* gmc hw init is done early */
if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC)
if (adev->ip_blocks[i].status.hw)
continue;
r = adev->ip_blocks[i].version->funcs->hw_init((void *)adev);
if (r) {
@@ -1884,6 +1897,9 @@ int amdgpu_device_init(struct amdgpu_device *adev,
if (runtime)
vga_switcheroo_init_domain_pm_ops(adev->dev, &adev->vga_pm_domain);
if (amdgpu_emu_mode == 1)
goto fence_driver_init;
/* Read BIOS */
if (!amdgpu_get_bios(adev)) {
r = -EINVAL;
@@ -1936,6 +1952,7 @@ int amdgpu_device_init(struct amdgpu_device *adev,
amdgpu_atombios_i2c_init(adev);
}
fence_driver_init:
/* Fence driver */
r = amdgpu_fence_driver_init(adev);
if (r) {
@@ -2078,7 +2095,10 @@ void amdgpu_device_fini(struct amdgpu_device *adev)
/* free i2c buses */
if (!amdgpu_device_has_dc_support(adev))
amdgpu_i2c_fini(adev);
amdgpu_atombios_fini(adev);
if (amdgpu_emu_mode != 1)
amdgpu_atombios_fini(adev);
kfree(adev->bios);
adev->bios = NULL;
if (!pci_is_thunderbolt_attached(adev->pdev))