drm/radeon/kms: restore surface registers on resume.

On resume on my rv530 laptop surface cntl was left disabled, so
wierd stuff would happen with rendering to a tiled front buffer.

This checks if the surface regs are assigned to bos and reprograms
the surface registers on resume using the same path that clears
them all on init.

Signed-off-by: Dave Airlie <airlied@redhat.com>

11 files changed, 23 insertions, 7 deletions

diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index b7baf16c11d7..824cc6480a06 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -3299,6 +3299,8 @@ int r100_resume(struct radeon_device *rdev)
         radeon_combios_asic_init(rdev->ddev);
         /* Resume clock after posting */
         r100_clock_startup(rdev);
+        /* Initialize surface registers */
+        radeon_surface_init(rdev);
         return r100_startup(rdev);
 }
 
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 86065dcc1982..83378c39d0e3 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -1250,6 +1250,8 @@ int r300_resume(struct radeon_device *rdev)
         radeon_combios_asic_init(rdev->ddev);
         /* Resume clock after posting */
         r300_clock_startup(rdev);
+        /* Initialize surface registers */
+        radeon_surface_init(rdev);
         return r300_startup(rdev);
 }
 
diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
index 162c3902fe69..c05a7270cf0c 100644
--- a/drivers/gpu/drm/radeon/r420.c
+++ b/drivers/gpu/drm/radeon/r420.c
@@ -231,7 +231,8 @@ int r420_resume(struct radeon_device *rdev)
         }
         /* Resume clock after posting */
         r420_clock_resume(rdev);
-
+        /* Initialize surface registers */
+        radeon_surface_init(rdev);
         return r420_startup(rdev);
 }
 
diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
index 788eef5c2a08..0f3843b6dac7 100644
--- a/drivers/gpu/drm/radeon/r520.c
+++ b/drivers/gpu/drm/radeon/r520.c
@@ -220,6 +220,8 @@ int r520_resume(struct radeon_device *rdev)
         atom_asic_init(rdev->mode_info.atom_context);
         /* Resume clock after posting */
         rv515_clock_startup(rdev);
+        /* Initialize surface registers */
+        radeon_surface_init(rdev);
         return r520_startup(rdev);
 }
 
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 410859ee112f..02bcdb1240c0 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -44,10 +44,11 @@ void radeon_surface_init(struct radeon_device *rdev)
         if (rdev->family < CHIP_R600) {
                 int i;
 
-                for (i = 0; i < 8; i++) {
-                        WREG32(RADEON_SURFACE0_INFO +
-                               i * (RADEON_SURFACE1_INFO - RADEON_SURFACE0_INFO),
-                               0);
+                for (i = 0; i < RADEON_GEM_MAX_SURFACES; i++) {
+                        if (rdev->surface_regs[i].bo)
+                                radeon_bo_get_surface_reg(rdev->surface_regs[i].bo);
+                        else
+                                radeon_clear_surface_reg(rdev, i);
                 }
                 /* enable surfaces */
                 WREG32(RADEON_SURFACE_CNTL, 0);
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index ca172adfddb1..2040937682fd 100644
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -378,7 +378,7 @@ int radeon_bo_fbdev_mmap(struct radeon_bo *bo,
         return ttm_fbdev_mmap(vma, &bo->tbo);
 }
 
-static int radeon_bo_get_surface_reg(struct radeon_bo *bo)
+int radeon_bo_get_surface_reg(struct radeon_bo *bo)
 {
         struct radeon_device *rdev = bo->rdev;
         struct radeon_surface_reg *reg;
diff --git a/drivers/gpu/drm/radeon/radeon_object.h b/drivers/gpu/drm/radeon/radeon_object.h
index e9da13077e2f..f6b69c2c0d00 100644
--- a/drivers/gpu/drm/radeon/radeon_object.h
+++ b/drivers/gpu/drm/radeon/radeon_object.h
@@ -175,5 +175,5 @@ extern int radeon_bo_check_tiling(struct radeon_bo *bo, bool has_moved,
 extern void radeon_bo_move_notify(struct ttm_buffer_object *bo,
                                         struct ttm_mem_reg *mem);
 extern void radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
-
+extern int radeon_bo_get_surface_reg(struct radeon_bo *bo);
 #endif
diff --git a/drivers/gpu/drm/radeon/rs400.c b/drivers/gpu/drm/radeon/rs400.c
index eda6d757b5c4..c1fcdddb6be6 100644
--- a/drivers/gpu/drm/radeon/rs400.c
+++ b/drivers/gpu/drm/radeon/rs400.c
@@ -430,6 +430,8 @@ int rs400_resume(struct radeon_device *rdev)
         radeon_combios_asic_init(rdev->ddev);
         /* Resume clock after posting */
         r300_clock_startup(rdev);
+        /* Initialize surface registers */
+        radeon_surface_init(rdev);
         return rs400_startup(rdev);
 }
 
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index fd5ab01f6ad1..4f8ea4260572 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -586,6 +586,8 @@ int rs600_resume(struct radeon_device *rdev)
         atom_asic_init(rdev->mode_info.atom_context);
         /* Resume clock after posting */
         rv515_clock_startup(rdev);
+        /* Initialize surface registers */
+        radeon_surface_init(rdev);
         return rs600_startup(rdev);
 }
 
diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c
index 98079367fbba..1e22f52d6039 100644
--- a/drivers/gpu/drm/radeon/rs690.c
+++ b/drivers/gpu/drm/radeon/rs690.c
@@ -658,6 +658,8 @@ int rs690_resume(struct radeon_device *rdev)
         atom_asic_init(rdev->mode_info.atom_context);
         /* Resume clock after posting */
         rv515_clock_startup(rdev);
+        /* Initialize surface registers */
+        radeon_surface_init(rdev);
         return rs690_startup(rdev);
 }
 
diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
index 6aa4ad87222a..59632a506b46 100644
--- a/drivers/gpu/drm/radeon/rv515.c
+++ b/drivers/gpu/drm/radeon/rv515.c
@@ -513,6 +513,8 @@ int rv515_resume(struct radeon_device *rdev)
         atom_asic_init(rdev->mode_info.atom_context);
         /* Resume clock after posting */
         rv515_clock_startup(rdev);
+        /* Initialize surface registers */
+        radeon_surface_init(rdev);
         return rv515_startup(rdev);
 }