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From ae40c508fbd88869157412a1b159c0d71eb1e708 Mon Sep 17 00:00:00 2001
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From: Kenneth Graunke <kenneth@whitecape.org>
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Date: Thu, 21 Nov 2019 23:03:50 -0800
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Subject: [PATCH xserver 09/11] modesetting: Use EGL_MESA_query_driver to
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select DRI driver if possible
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New now ask Glamor to use EGL_MESA_query_driver to obtain the DRI driver
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name; if successful, we use that as the DRI driver name. Following the
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existing dri2.c logic, we also use the same name for the VDPAU driver,
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except for i965 (and now iris), where we switch to the "va_gl" fallback.
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This allows us to bypass the PCI ID lists in xserver and centralize the
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driver selection mechanism inside Mesa. The hope is that we no longer
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have to update these lists for any future hardware.
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(cherry picked from commit 8d4be7f6c4f7c673d7ec1a6bfdef944907a3916e)
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---
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hw/xfree86/drivers/modesetting/dri2.c | 3 ++-
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hw/xfree86/drivers/modesetting/driver.c | 1 +
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hw/xfree86/drivers/modesetting/driver.h | 1 +
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3 files changed, 4 insertions(+), 1 deletion(-)
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diff --git a/hw/xfree86/drivers/modesetting/dri2.c b/hw/xfree86/drivers/modesetting/dri2.c
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index 724d9d34c..255c72cac 100644
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--- a/hw/xfree86/drivers/modesetting/dri2.c
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+++ b/hw/xfree86/drivers/modesetting/dri2.c
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@@ -1076,7 +1076,8 @@ ms_dri2_screen_init(ScreenPtr screen)
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info.CopyRegion2 = ms_dri2_copy_region2;
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/* Ask Glamor to obtain the DRI driver name via EGL_MESA_query_driver. */
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- driver_names[0] = glamor_egl_get_driver_name(screen);
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+ if (ms->glamor.egl_get_driver_name)
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+ driver_names[0] = ms->glamor.egl_get_driver_name(screen);
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if (driver_names[0]) {
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/* There is no VDPAU driver for Intel, fallback to the generic
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diff --git a/hw/xfree86/drivers/modesetting/driver.c b/hw/xfree86/drivers/modesetting/driver.c
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index afba8538a..08cf6a1b4 100644
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--- a/hw/xfree86/drivers/modesetting/driver.c
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+++ b/hw/xfree86/drivers/modesetting/driver.c
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@@ -761,6 +761,7 @@ bind_glamor_api(void *mod, modesettingPtr ms)
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ms->glamor.shareable_fd_from_pixmap = LoaderSymbolFromModule(mod, "glamor_shareable_fd_from_pixmap");
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ms->glamor.supports_pixmap_import_export = LoaderSymbolFromModule(mod, "glamor_supports_pixmap_import_export");
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ms->glamor.xv_init = LoaderSymbolFromModule(mod, "glamor_xv_init");
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+ ms->glamor.egl_get_driver_name = LoaderSymbolFromModule(mod, "glamor_egl_get_driver_name");
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}
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static void
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diff --git a/hw/xfree86/drivers/modesetting/driver.h b/hw/xfree86/drivers/modesetting/driver.h
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index c6e7cd0c8..328a97de1 100644
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--- a/hw/xfree86/drivers/modesetting/driver.h
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+++ b/hw/xfree86/drivers/modesetting/driver.h
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@@ -154,6 +154,7 @@ typedef struct _modesettingRec {
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CARD32 *);
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Bool (*supports_pixmap_import_export)(ScreenPtr);
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XF86VideoAdaptorPtr (*xv_init)(ScreenPtr, int);
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+ const char *(*egl_get_driver_name)(ScreenPtr);
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} glamor;
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} modesettingRec, *modesettingPtr;
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--
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2.33.1
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