From cd404af0c930104462aa91344f07d002cf8248ed Mon Sep 17 00:00:00 2001 From: =?utf8?q?Michel=20D=C3=A4nzer?= Date: Tue, 7 Jul 2015 16:27:28 +0900 Subject: [PATCH] drm/radeon: Clean up reference counting and pinning of the cursor BOs MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Take a GEM reference for and pin the new cursor BO, unpin and drop the GEM reference for the old cursor BO in radeon_crtc_cursor_set2, and use radeon_crtc->cursor_addr in radeon_set_cursor. This fixes radeon_cursor_reset accidentally incrementing the cursor BO pin count, and cleans up the code a little. Cc: stable@vger.kernel.org Reviewed-by: Grigori Goronzy Reviewed-by: Christian König Signed-off-by: Michel Dänzer Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_cursor.c | 84 ++++++++++++-------------- drivers/gpu/drm/radeon/radeon_mode.h | 1 - 2 files changed, 37 insertions(+), 48 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_cursor.c b/drivers/gpu/drm/radeon/radeon_cursor.c index 45e54060ee97..fa661744a1f5 100644 --- a/drivers/gpu/drm/radeon/radeon_cursor.c +++ b/drivers/gpu/drm/radeon/radeon_cursor.c @@ -205,8 +205,9 @@ static int radeon_cursor_move_locked(struct drm_crtc *crtc, int x, int y) | (x << 16) | y)); /* offset is from DISP(2)_BASE_ADDRESS */ - WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, (radeon_crtc->legacy_cursor_offset + - (yorigin * 256))); + WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, + radeon_crtc->cursor_addr - radeon_crtc->legacy_display_base_addr + + yorigin * 256); } radeon_crtc->cursor_x = x; @@ -227,51 +228,32 @@ int radeon_crtc_cursor_move(struct drm_crtc *crtc, return ret; } -static int radeon_set_cursor(struct drm_crtc *crtc, struct drm_gem_object *obj) +static void radeon_set_cursor(struct drm_crtc *crtc) { struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); struct radeon_device *rdev = crtc->dev->dev_private; - struct radeon_bo *robj = gem_to_radeon_bo(obj); - uint64_t gpu_addr; - int ret; - - ret = radeon_bo_reserve(robj, false); - if (unlikely(ret != 0)) - goto fail; - /* Only 27 bit offset for legacy cursor */ - ret = radeon_bo_pin_restricted(robj, RADEON_GEM_DOMAIN_VRAM, - ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27, - &gpu_addr); - radeon_bo_unreserve(robj); - if (ret) - goto fail; if (ASIC_IS_DCE4(rdev)) { WREG32(EVERGREEN_CUR_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset, - upper_32_bits(gpu_addr)); + upper_32_bits(radeon_crtc->cursor_addr)); WREG32(EVERGREEN_CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset, - gpu_addr & 0xffffffff); + lower_32_bits(radeon_crtc->cursor_addr)); } else if (ASIC_IS_AVIVO(rdev)) { if (rdev->family >= CHIP_RV770) { if (radeon_crtc->crtc_id) - WREG32(R700_D2CUR_SURFACE_ADDRESS_HIGH, upper_32_bits(gpu_addr)); + WREG32(R700_D2CUR_SURFACE_ADDRESS_HIGH, + upper_32_bits(radeon_crtc->cursor_addr)); else - WREG32(R700_D1CUR_SURFACE_ADDRESS_HIGH, upper_32_bits(gpu_addr)); + WREG32(R700_D1CUR_SURFACE_ADDRESS_HIGH, + upper_32_bits(radeon_crtc->cursor_addr)); } WREG32(AVIVO_D1CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset, - gpu_addr & 0xffffffff); + lower_32_bits(radeon_crtc->cursor_addr)); } else { - radeon_crtc->legacy_cursor_offset = gpu_addr - radeon_crtc->legacy_display_base_addr; /* offset is from DISP(2)_BASE_ADDRESS */ - WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, radeon_crtc->legacy_cursor_offset); + WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, + radeon_crtc->cursor_addr - radeon_crtc->legacy_display_base_addr); } - - return 0; - -fail: - drm_gem_object_unreference_unlocked(obj); - - return ret; } int radeon_crtc_cursor_set2(struct drm_crtc *crtc, @@ -283,7 +265,9 @@ int radeon_crtc_cursor_set2(struct drm_crtc *crtc, int32_t hot_y) { struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); + struct radeon_device *rdev = crtc->dev->dev_private; struct drm_gem_object *obj; + struct radeon_bo *robj; int ret; if (!handle) { @@ -305,6 +289,23 @@ int radeon_crtc_cursor_set2(struct drm_crtc *crtc, return -ENOENT; } + robj = gem_to_radeon_bo(obj); + ret = radeon_bo_reserve(robj, false); + if (ret != 0) { + drm_gem_object_unreference_unlocked(obj); + return ret; + } + /* Only 27 bit offset for legacy cursor */ + ret = radeon_bo_pin_restricted(robj, RADEON_GEM_DOMAIN_VRAM, + ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27, + &radeon_crtc->cursor_addr); + radeon_bo_unreserve(robj); + if (ret) { + DRM_ERROR("Failed to pin new cursor BO (%d)\n", ret); + drm_gem_object_unreference_unlocked(obj); + return ret; + } + radeon_crtc->cursor_width = width; radeon_crtc->cursor_height = height; @@ -323,13 +324,8 @@ int radeon_crtc_cursor_set2(struct drm_crtc *crtc, radeon_crtc->cursor_hot_y = hot_y; } - ret = radeon_set_cursor(crtc, obj); - - if (ret) - DRM_ERROR("radeon_set_cursor returned %d, not changing cursor\n", - ret); - else - radeon_show_cursor(crtc); + radeon_set_cursor(crtc); + radeon_show_cursor(crtc); radeon_lock_cursor(crtc, false); @@ -341,8 +337,7 @@ unpin: radeon_bo_unpin(robj); radeon_bo_unreserve(robj); } - if (radeon_crtc->cursor_bo != obj) - drm_gem_object_unreference_unlocked(radeon_crtc->cursor_bo); + drm_gem_object_unreference_unlocked(radeon_crtc->cursor_bo); } radeon_crtc->cursor_bo = obj; @@ -360,7 +355,6 @@ unpin: void radeon_cursor_reset(struct drm_crtc *crtc) { struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); - int ret; if (radeon_crtc->cursor_bo) { radeon_lock_cursor(crtc, true); @@ -368,12 +362,8 @@ void radeon_cursor_reset(struct drm_crtc *crtc) radeon_cursor_move_locked(crtc, radeon_crtc->cursor_x, radeon_crtc->cursor_y); - ret = radeon_set_cursor(crtc, radeon_crtc->cursor_bo); - if (ret) - DRM_ERROR("radeon_set_cursor returned %d, not showing " - "cursor\n", ret); - else - radeon_show_cursor(crtc); + radeon_set_cursor(crtc); + radeon_show_cursor(crtc); radeon_lock_cursor(crtc, false); } diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h index 6de5459316b5..07909d817381 100644 --- a/drivers/gpu/drm/radeon/radeon_mode.h +++ b/drivers/gpu/drm/radeon/radeon_mode.h @@ -343,7 +343,6 @@ struct radeon_crtc { int max_cursor_width; int max_cursor_height; uint32_t legacy_display_base_addr; - uint32_t legacy_cursor_offset; enum radeon_rmx_type rmx_type; u8 h_border; u8 v_border; -- 2.20.1