xserver: Branch 'master' - 2 commits

GitLab Mirror gitlab-mirror at kemper.freedesktop.org
Tue Nov 26 18:32:33 UTC 2019


 glamor/glamor.h                         |    2 ++
 glamor/glamor_egl.c                     |   16 ++++++++++++++++
 hw/xfree86/common/xf86Module.h          |    2 +-
 hw/xfree86/drivers/modesetting/dri2.c   |   29 ++++++++++++++++++++++++++---
 hw/xfree86/drivers/modesetting/driver.c |    1 +
 hw/xfree86/drivers/modesetting/driver.h |    1 +
 include/meson.build                     |    2 ++
 7 files changed, 49 insertions(+), 4 deletions(-)

New commits:
commit 8d4be7f6c4f7c673d7ec1a6bfdef944907a3916e
Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Thu Nov 21 23:03:50 2019 -0800

    modesetting: Use EGL_MESA_query_driver to select DRI driver if possible
    
    New now ask Glamor to use EGL_MESA_query_driver to obtain the DRI driver
    name; if successful, we use that as the DRI driver name.  Following the
    existing dri2.c logic, we also use the same name for the VDPAU driver,
    except for i965 (and now iris), where we switch to the "va_gl" fallback.
    
    This allows us to bypass the PCI ID lists in xserver and centralize the
    driver selection mechanism inside Mesa.  The hope is that we no longer
    have to update these lists for any future hardware.

diff --git a/hw/xfree86/common/xf86Module.h b/hw/xfree86/common/xf86Module.h
index ef1e70f87..c590ffec4 100644
--- a/hw/xfree86/common/xf86Module.h
+++ b/hw/xfree86/common/xf86Module.h
@@ -74,7 +74,7 @@
  * mask is 0xFFFF0000.
  */
 #define ABI_ANSIC_VERSION	SET_ABI_VERSION(0, 4)
-#define ABI_VIDEODRV_VERSION	SET_ABI_VERSION(25, 0)
+#define ABI_VIDEODRV_VERSION	SET_ABI_VERSION(25, 1)
 #define ABI_XINPUT_VERSION	SET_ABI_VERSION(24, 1)
 #define ABI_EXTENSION_VERSION	SET_ABI_VERSION(10, 0)
 
diff --git a/hw/xfree86/drivers/modesetting/dri2.c b/hw/xfree86/drivers/modesetting/dri2.c
index ccb9d04c9..e893da422 100644
--- a/hw/xfree86/drivers/modesetting/dri2.c
+++ b/hw/xfree86/drivers/modesetting/dri2.c
@@ -1037,6 +1037,7 @@ ms_dri2_screen_init(ScreenPtr screen)
     ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
     modesettingPtr ms = modesettingPTR(scrn);
     DRI2InfoRec info;
+    const char *driver_names[2] = { NULL, NULL };
 
     if (!ms->glamor.supports_pixmap_import_export(screen)) {
         xf86DrvMsg(scrn->scrnIndex, X_WARNING,
@@ -1075,9 +1076,31 @@ ms_dri2_screen_init(ScreenPtr screen)
     info.DestroyBuffer2 = ms_dri2_destroy_buffer2;
     info.CopyRegion2 = ms_dri2_copy_region2;
 
-    /* These two will be filled in by dri2.c */
-    info.numDrivers = 0;
-    info.driverNames = NULL;
+    /* Ask Glamor to obtain the DRI driver name via EGL_MESA_query_driver, */
+    if (ms->glamor.egl_get_driver_name)
+        driver_names[0] = ms->glamor.egl_get_driver_name(screen);
+
+    if (driver_names[0]) {
+        /* There is no VDPAU driver for Intel, fallback to the generic
+         * OpenGL/VAAPI va_gl backend to emulate VDPAU.  Otherwise,
+         * guess that the DRI and VDPAU drivers have the same name.
+         */
+        if (strcmp(driver_names[0], "i965") == 0 ||
+            strcmp(driver_names[0], "iris") == 0) {
+            driver_names[1] = "va_gl";
+        } else {
+            driver_names[1] = driver_names[0];
+        }
+
+        info.numDrivers = 2;
+        info.driverNames = driver_names;
+    } else {
+        /* EGL_MESA_query_driver was unavailable; let dri2.c select the
+         * driver and fill in these fields for us.
+         */
+        info.numDrivers = 0;
+        info.driverNames = NULL;
+    }
 
     return DRI2ScreenInit(screen, &info);
 }
diff --git a/hw/xfree86/drivers/modesetting/driver.c b/hw/xfree86/drivers/modesetting/driver.c
index 6c7d7eaf0..de7280084 100644
--- a/hw/xfree86/drivers/modesetting/driver.c
+++ b/hw/xfree86/drivers/modesetting/driver.c
@@ -762,6 +762,7 @@ bind_glamor_api(void *mod, modesettingPtr ms)
     ms->glamor.shareable_fd_from_pixmap = LoaderSymbolFromModule(mod, "glamor_shareable_fd_from_pixmap");
     ms->glamor.supports_pixmap_import_export = LoaderSymbolFromModule(mod, "glamor_supports_pixmap_import_export");
     ms->glamor.xv_init = LoaderSymbolFromModule(mod, "glamor_xv_init");
+    ms->glamor.egl_get_driver_name = LoaderSymbolFromModule(mod, "glamor_egl_get_driver_name");
 }
 
 static void
diff --git a/hw/xfree86/drivers/modesetting/driver.h b/hw/xfree86/drivers/modesetting/driver.h
index 5909829a0..60e4aaa96 100644
--- a/hw/xfree86/drivers/modesetting/driver.h
+++ b/hw/xfree86/drivers/modesetting/driver.h
@@ -155,6 +155,7 @@ typedef struct _modesettingRec {
                                         CARD32 *);
         Bool (*supports_pixmap_import_export)(ScreenPtr);
         XF86VideoAdaptorPtr (*xv_init)(ScreenPtr, int);
+        const char *(*egl_get_driver_name)(ScreenPtr);
     } glamor;
 
 } modesettingRec, *modesettingPtr;
commit 195c2ef8f9f07b9bdabc0f554a9033b7857b99c7
Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Thu Nov 21 23:01:28 2019 -0800

    glamor: Add a function to get the driver name via EGL_MESA_query_driver
    
    This maps to eglGetDisplayDriverName if EGL_MESA_query_render is
    supported, otherwise it returns NULL.

diff --git a/glamor/glamor.h b/glamor/glamor.h
index 038d4d80d..76ad84ed9 100644
--- a/glamor/glamor.h
+++ b/glamor/glamor.h
@@ -399,6 +399,8 @@ extern _X_EXPORT Bool
                                                struct gbm_bo *bo,
                                                Bool used_modifiers);
 
+extern _X_EXPORT const char *glamor_egl_get_driver_name(ScreenPtr screen);
+
 #endif
 
 extern _X_EXPORT void glamor_egl_screen_init(ScreenPtr screen,
diff --git a/glamor/glamor_egl.c b/glamor/glamor_egl.c
index 693bee6cf..ea3450152 100644
--- a/glamor/glamor_egl.c
+++ b/glamor/glamor_egl.c
@@ -700,6 +700,22 @@ glamor_get_modifiers(ScreenPtr screen, uint32_t format,
 #endif
 }
 
+_X_EXPORT const char *
+glamor_egl_get_driver_name(ScreenPtr screen)
+{
+#ifdef GLAMOR_HAS_EGL_QUERY_DRIVER
+    struct glamor_egl_screen_private *glamor_egl;
+
+    glamor_egl = glamor_egl_get_screen_private(xf86ScreenToScrn(screen));
+
+    if (epoxy_has_egl_extension(glamor_egl->display, "EGL_MESA_query_driver"))
+        return eglGetDisplayDriverName(glamor_egl->display);
+#endif
+
+    return NULL;
+}
+
+
 static Bool
 glamor_egl_destroy_pixmap(PixmapPtr pixmap)
 {
diff --git a/include/meson.build b/include/meson.build
index 070178473..a01cb1709 100644
--- a/include/meson.build
+++ b/include/meson.build
@@ -97,6 +97,8 @@ conf_data.set('HAVE_XSHMFENCE', xshmfence_dep.found())
 conf_data.set('WITH_LIBDRM', libdrm_required)
 conf_data.set('GLAMOR_HAS_EGL_QUERY_DMABUF',
               epoxy_dep.found() and epoxy_dep.version().version_compare('>= 1.4.4'))
+conf_data.set('GLAMOR_HAS_EGL_QUERY_DRIVER',
+              epoxy_dep.found() and epoxy_dep.version().version_compare('>= 1.5.4'))
 conf_data.set('GLXEXT', build_glx)
 conf_data.set('GLAMOR', build_glamor)
 conf_data.set('GLAMOR_HAS_GBM', gbm_dep.found())


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