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Use render node for DRI3 if available

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Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
[ Second attempt, let's see if there's any fallout this time... ]
This commit is contained in:
Jammy Zhou
2016-12-13 12:32:39 +09:00
committed by Michel Dänzer
parent edd276185d
commit b5c189473d
2 changed files with 35 additions and 3 deletions
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37
src/amdgpu_dri3.c
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@@ -40,9 +40,7 @@
#include <errno.h>
#include <libgen.h>
static int
amdgpu_dri3_open(ScreenPtr screen, RRProviderPtr provider, int *out)
static int open_master_node(ScreenPtr screen, int *out)
{
ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
AMDGPUEntPtr pAMDGPUEnt = AMDGPUEntPriv(scrn);
@@ -88,6 +86,36 @@ amdgpu_dri3_open(ScreenPtr screen, RRProviderPtr provider, int *out)
return Success;
}
static int open_render_node(ScreenPtr screen, int *out)
{
ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
AMDGPUEntPtr pAMDGPUEnt = AMDGPUEntPriv(scrn);
int fd;
fd = open(pAMDGPUEnt->render_node, O_RDWR | O_CLOEXEC);
if (fd < 0)
return BadAlloc;
*out = fd;
return Success;
}
static int
amdgpu_dri3_open(ScreenPtr screen, RRProviderPtr provider, int *out)
{
ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
AMDGPUEntPtr pAMDGPUEnt = AMDGPUEntPriv(scrn);
int ret = BadAlloc;
if (pAMDGPUEnt->render_node)
ret = open_render_node(screen, out);
if (ret != Success)
ret = open_master_node(screen, out);
return ret;
}
#if DRI3_SCREEN_INFO_VERSION >= 1 && XORG_VERSION_CURRENT <= XORG_VERSION_NUMERIC(1,18,99,1,0)
static int
@@ -229,6 +257,9 @@ Bool
amdgpu_dri3_screen_init(ScreenPtr screen)
{
ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
AMDGPUEntPtr pAMDGPUEnt = AMDGPUEntPriv(scrn);
pAMDGPUEnt->render_node = drmGetRenderDeviceNameFromFd(pAMDGPUEnt->fd);
if (!dri3_screen_init(screen, &amdgpu_dri3_screen_info)) {
xf86DrvMsg(scrn->scrnIndex, X_WARNING,

1
src/amdgpu_probe.h
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@@ -68,6 +68,7 @@ typedef struct {
ScrnInfoPtr primary_scrn;
ScrnInfoPtr secondary_scrn;
struct xf86_platform_device *platform_dev;
char *render_node;
} AMDGPUEntRec, *AMDGPUEntPtr;
extern const OptionInfoRec *AMDGPUOptionsWeak(void);