From: Marek Olšák <[email protected]>

- unify the code
- choose radeon or amdgpu based on the DRM version, not based on which one
  succeeds first
---
 .../auxiliary/target-helpers/drm_helper.h     | 13 ++-------
 src/gallium/drivers/radeonsi/si_pipe.c        | 27 +++++++++++++++++--
 src/gallium/drivers/radeonsi/si_public.h      |  5 +---
 .../targets/pipe-loader/pipe_radeonsi.c       | 13 ++-------
 src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c |  8 ------
 5 files changed, 30 insertions(+), 36 deletions(-)

diff --git a/src/gallium/auxiliary/target-helpers/drm_helper.h 
b/src/gallium/auxiliary/target-helpers/drm_helper.h
index ac891d1d307..6bdd1a008db 100644
--- a/src/gallium/auxiliary/target-helpers/drm_helper.h
+++ b/src/gallium/auxiliary/target-helpers/drm_helper.h
@@ -154,37 +154,28 @@ pipe_r600_create_screen(int fd, const struct 
pipe_screen_config *config)
 struct pipe_screen *
 pipe_r600_create_screen(int fd, const struct pipe_screen_config *config)
 {
    fprintf(stderr, "r600: driver missing\n");
    return NULL;
 }
 
 #endif
 
 #ifdef GALLIUM_RADEONSI
-#include "radeon/radeon_winsys.h"
-#include "radeon/drm/radeon_drm_public.h"
-#include "amdgpu/drm/amdgpu_public.h"
 #include "radeonsi/si_public.h"
 
 struct pipe_screen *
 pipe_radeonsi_create_screen(int fd, const struct pipe_screen_config *config)
 {
-   struct radeon_winsys *rw;
-
-   /* First, try amdgpu. */
-   rw = amdgpu_winsys_create(fd, config, radeonsi_screen_create);
+   struct pipe_screen *screen = radeonsi_screen_create(fd, config);
 
-   if (!rw)
-      rw = radeon_drm_winsys_create(fd, config, radeonsi_screen_create);
-
-   return rw ? debug_screen_wrap(rw->screen) : NULL;
+   return screen ? debug_screen_wrap(screen) : NULL;
 }
 
 const char *radeonsi_driconf_xml =
       #include "radeonsi/si_driinfo.h"
       ;
 
 #else
 
 struct pipe_screen *
 pipe_radeonsi_create_screen(int fd, const struct pipe_screen_config *config)
diff --git a/src/gallium/drivers/radeonsi/si_pipe.c 
b/src/gallium/drivers/radeonsi/si_pipe.c
index 9ddf7802746..c19a2cd97d3 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.c
+++ b/src/gallium/drivers/radeonsi/si_pipe.c
@@ -35,20 +35,24 @@
 #include "util/disk_cache.h"
 #include "util/u_log.h"
 #include "util/u_memory.h"
 #include "util/u_suballoc.h"
 #include "util/u_tests.h"
 #include "util/u_upload_mgr.h"
 #include "util/xmlconfig.h"
 #include "vl/vl_decoder.h"
 #include "driver_ddebug/dd_util.h"
 
+#include "gallium/winsys/radeon/drm/radeon_drm_public.h"
+#include "gallium/winsys/amdgpu/drm/amdgpu_public.h"
+#include <xf86drm.h>
+
 static const struct debug_named_value debug_options[] = {
        /* Shader logging options: */
        { "vs", DBG(VS), "Print vertex shaders" },
        { "ps", DBG(PS), "Print pixel shaders" },
        { "gs", DBG(GS), "Print geometry shaders" },
        { "tcs", DBG(TCS), "Print tessellation control shaders" },
        { "tes", DBG(TES), "Print tessellation evaluation shaders" },
        { "cs", DBG(CS), "Print compute shaders" },
        { "noir", DBG(NO_IR), "Don't print the LLVM IR"},
        { "notgsi", DBG(NO_TGSI), "Don't print the TGSI"},
@@ -872,22 +876,23 @@ static bool 
si_is_parallel_shader_compilation_finished(struct pipe_screen *scree
        if (shader_type == PIPE_SHADER_COMPUTE) {
                struct si_compute *cs = (struct si_compute*)shader;
 
                return util_queue_fence_is_signalled(&cs->ready);
        }
        struct si_shader_selector *sel = (struct si_shader_selector *)shader;
 
        return util_queue_fence_is_signalled(&sel->ready);
 }
 
-struct pipe_screen *radeonsi_screen_create(struct radeon_winsys *ws,
-                                          const struct pipe_screen_config 
*config)
+static struct pipe_screen *
+radeonsi_screen_create_impl(struct radeon_winsys *ws,
+                           const struct pipe_screen_config *config)
 {
        struct si_screen *sscreen = CALLOC_STRUCT(si_screen);
        unsigned hw_threads, num_comp_hi_threads, num_comp_lo_threads, i;
 
        if (!sscreen) {
                return NULL;
        }
 
        sscreen->ws = ws;
        ws->query_info(ws, &sscreen->info);
@@ -1218,10 +1223,28 @@ struct pipe_screen *radeonsi_screen_create(struct 
radeon_winsys *ws,
                si_test_gds_memory_management((struct 
si_context*)sscreen->aux_context,
                                              32 * 1024, 4, RADEON_DOMAIN_GDS);
        }
        if (sscreen->debug_flags & DBG(TEST_GDS_OA_MM)) {
                si_test_gds_memory_management((struct 
si_context*)sscreen->aux_context,
                                              4, 1, RADEON_DOMAIN_OA);
        }
 
        return &sscreen->b;
 }
+
+struct pipe_screen *radeonsi_screen_create(int fd, const struct 
pipe_screen_config *config)
+{
+       drmVersionPtr version = drmGetVersion(fd);
+       struct radeon_winsys *rw = NULL;
+
+       switch (version->version_major) {
+       case 2:
+               rw = radeon_drm_winsys_create(fd, config, 
radeonsi_screen_create_impl);
+               break;
+       case 3:
+               rw = amdgpu_winsys_create(fd, config, 
radeonsi_screen_create_impl);
+               break;
+       }
+
+       drmFreeVersion(version);
+       return rw ? rw->screen : NULL;
+}
diff --git a/src/gallium/drivers/radeonsi/si_public.h 
b/src/gallium/drivers/radeonsi/si_public.h
index c8721babb05..8a1f6e1d93b 100644
--- a/src/gallium/drivers/radeonsi/si_public.h
+++ b/src/gallium/drivers/radeonsi/si_public.h
@@ -18,16 +18,13 @@
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 #ifndef SI_PUBLIC_H
 #define SI_PUBLIC_H
 
-struct radeon_winsys;
-
-struct pipe_screen *radeonsi_screen_create(struct radeon_winsys *ws,
-                                          const struct pipe_screen_config 
*config);
+struct pipe_screen *radeonsi_screen_create(int fd, const struct 
pipe_screen_config *config);
 
 #endif
diff --git a/src/gallium/targets/pipe-loader/pipe_radeonsi.c 
b/src/gallium/targets/pipe-loader/pipe_radeonsi.c
index 5657595af19..9d925c727f1 100644
--- a/src/gallium/targets/pipe-loader/pipe_radeonsi.c
+++ b/src/gallium/targets/pipe-loader/pipe_radeonsi.c
@@ -1,28 +1,19 @@
 #include "state_tracker/drm_driver.h"
 #include "target-helpers/inline_debug_helper.h"
-#include "radeon/drm/radeon_drm_public.h"
-#include "radeon/radeon_winsys.h"
-#include "amdgpu/drm/amdgpu_public.h"
 #include "radeonsi/si_public.h"
 #include "util/xmlpool.h"
 
 static struct pipe_screen *
 create_screen(int fd, const struct pipe_screen_config *config)
 {
-   struct radeon_winsys *rw;
+   struct pipe_screen *screen = radeonsi_screen_create(fd, config);
 
-   /* First, try amdgpu. */
-   rw = amdgpu_winsys_create(fd, config, radeonsi_screen_create);
-
-   if (!rw)
-      rw = radeon_drm_winsys_create(fd, config, radeonsi_screen_create);
-
-   return rw ? debug_screen_wrap(rw->screen) : NULL;
+   return screen ? debug_screen_wrap(screen) : NULL;
 }
 
 static const char *driconf_xml =
    #include "radeonsi/si_driinfo.h"
    ;
 
 PUBLIC
 DRM_DRIVER_DESCRIPTOR("radeonsi", &driconf_xml, create_screen)
diff --git a/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c 
b/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c
index 1430c94d3e4..d2776b347cb 100644
--- a/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c
+++ b/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c
@@ -277,31 +277,23 @@ static void amdgpu_pin_threads_to_L3_cache(struct 
radeon_winsys *rws,
 
    util_pin_thread_to_L3(ws->cs_queue.threads[0], cache,
                          util_cpu_caps.cores_per_L3);
 }
 
 PUBLIC struct radeon_winsys *
 amdgpu_winsys_create(int fd, const struct pipe_screen_config *config,
                     radeon_screen_create_t screen_create)
 {
    struct amdgpu_winsys *ws;
-   drmVersionPtr version = drmGetVersion(fd);
    amdgpu_device_handle dev;
    uint32_t drm_major, drm_minor, r;
 
-   /* The DRM driver version of amdgpu is 3.x.x. */
-   if (version->version_major != 3) {
-      drmFreeVersion(version);
-      return NULL;
-   }
-   drmFreeVersion(version);
-
    /* Look up the winsys from the dev table. */
    simple_mtx_lock(&dev_tab_mutex);
    if (!dev_tab)
       dev_tab = util_hash_table_create(hash_pointer, compare_pointers);
 
    /* Initialize the amdgpu device. This should always return the same pointer
     * for the same fd. */
    r = amdgpu_device_initialize(fd, &drm_major, &drm_minor, &dev);
    if (r) {
       simple_mtx_unlock(&dev_tab_mutex);
-- 
2.17.1

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