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: Change the virtual_display type from int to char*.

Browse Source 
For virtual display feature, as there may be multiple GPUs,
for user could choose whiche GPU need to enable this feature, change
the type of virtual_display from int to char*. The variable will be set
like this virtual_display="xxxx:xx:xx.x;xxxx:xx:xx.x;".

Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Emily Deng
2016-08-10 16:01:25 +08:00
committed by Alex Deucher
parent 4f4b78341b
commit 9accf2fd33
5 changed files with 35 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@@ -46,6 +46,7 @@
#endif
#include "vi.h"
#include "bif/bif_4_1_d.h"
#include <linux/pci.h>
static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev);
static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev);
@@ -1181,11 +1182,37 @@ int amdgpu_ip_block_version_cmp(struct amdgpu_device *adev,
return 1;
}
static void amdgpu_whether_enable_virtual_display(struct amdgpu_device *adev)
{
adev->enable_virtual_display = false;
if (amdgpu_virtual_display) {
struct drm_device *ddev = adev->ddev;
const char *pci_address_name = pci_name(ddev->pdev);
char *pciaddstr, *pciaddstr_tmp, *pciaddname;
pciaddstr = kstrdup(amdgpu_virtual_display, GFP_KERNEL);
pciaddstr_tmp = pciaddstr;
while ((pciaddname = strsep(&pciaddstr_tmp, ";"))) {
if (!strcmp(pci_address_name, pciaddname)) {
adev->enable_virtual_display = true;
break;
}
}
DRM_INFO("virtual display string:%s, %s:virtual_display:%d\n",
amdgpu_virtual_display, pci_address_name,
adev->enable_virtual_display);
kfree(pciaddstr);
}
}
static int amdgpu_early_init(struct amdgpu_device *adev)
{
int i, r;
DRM_INFO("virtual display enabled:%d\n", amdgpu_virtual_display);
amdgpu_whether_enable_virtual_display(adev);
switch (adev->asic_type) {
case CHIP_TOPAZ: