summaryrefslogtreecommitdiff
path: root/drivers/char
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2016-03-21 13:48:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-03-21 13:48:00 -0700
commit266c73b77706f2d05b4a3e70a5bb702ed35431d6 (patch)
tree381461b90a8bd10c0c36b0cdbb2e6e4bbf6c5e87 /drivers/char
parent2c856e14dad8cb1b085ae1f30c5e125c6d46019b (diff)
parent568d7c764ae01f3706085ac8f0d8a8ac7e826bd7 (diff)
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie: "This is the main drm pull request for 4.6 kernel. Overall the coolest thing here for me is the nouveau maxwell signed firmware support from NVidia, it's taken a long while to extract this from them. I also wish the ARM vendors just designed one set of display IP, ARM display block proliferation is definitely increasing. Core: - drm_event cleanups - Internal API cleanup making mode_fixup optional. - Apple GMUX vga switcheroo support. - DP AUX testing interface Panel: - Refactoring of DSI core for use over more transports. New driver: - ARM hdlcd driver i915: - FBC/PSR (framebuffer compression, panel self refresh) enabled by default. - Ongoing atomic display support work - Ongoing runtime PM work - Pixel clock limit checks - VBT DSI description support - GEM fixes - GuC firmware scheduler enhancements amdkfd: - Deferred probing fixes to avoid make file or link ordering. amdgpu/radeon: - ACP support for i2s audio support. - Command Submission/GPU scheduler/GPUVM optimisations - Initial GPU reset support for amdgpu vmwgfx: - Support for DX10 gen mipmaps - Pageflipping and other fixes. exynos: - Exynos5420 SoC support for FIMD - Exynos5422 SoC support for MIPI-DSI nouveau: - GM20x secure boot support - adds acceleration for Maxwell GPUs. - GM200 support - GM20B clock driver support - Power sensors work etnaviv: - Correctness fixes for GPU cache flushing - Better support for i.MX6 systems. imx-drm: - VBlank IRQ support - Fence support - OF endpoint support msm: - HDMI support for 8996 (snapdragon 820) - Adreno 430 support - Timestamp queries support virtio-gpu: - Fixes for Android support. rockchip: - Add support for Innosilicion HDMI rcar-du: - Support for 4 crtcs - R8A7795 support - RCar Gen 3 support omapdrm: - HDMI interlace output support - dma-buf import support - Refactoring to remove a lot of legacy code. tilcdc: - Rewrite of pageflipping code - dma-buf support - pinctrl support vc4: - HDMI modesetting bug fixes - Significant 3D performance improvement. fsl-dcu (FreeScale): - Lots of fixes tegra: - Two small fixes sti: - Atomic support for planes - Improved HDMI support" * 'drm-next' of git://people.freedesktop.org/~airlied/linux: (1063 commits) drm/amdgpu: release_pages requires linux/pagemap.h drm/sti: restore mode_fixup callback drm/amdgpu/gfx7: add MTYPE definition drm/amdgpu: removing BO_VAs shouldn't be interruptible drm/amd/powerplay: show uvd/vce power gate enablement for tonga. drm/amd/powerplay: show uvd/vce power gate info for fiji drm/amdgpu: use sched fence if possible drm/amdgpu: move ib.fence to job.fence drm/amdgpu: give a fence param to ib_free drm/amdgpu: include the right version of gmc header files for iceland drm/radeon: fix indentation. drm/amd/powerplay: add uvd/vce dpm enabling flag to fix the performance issue for CZ drm/amdgpu: switch back to 32bit hw fences v2 drm/amdgpu: remove amdgpu_fence_is_signaled drm/amdgpu: drop the extra fence range check v2 drm/amdgpu: signal fences directly in amdgpu_fence_process drm/amdgpu: cleanup amdgpu_fence_wait_empty v2 drm/amdgpu: keep all fences in an RCU protected array v2 drm/amdgpu: add number of hardware submissions to amdgpu_fence_driver_init_ring drm/amdgpu: RCU protected amd_sched_fence_release ...
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/agp/intel-gtt.c32
1 files changed, 18 insertions, 14 deletions
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 1341a94cc779..aef87fdbd187 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -555,8 +555,10 @@ static unsigned int intel_gtt_mappable_entries(void)
static void intel_gtt_teardown_scratch_page(void)
{
set_pages_wb(intel_private.scratch_page, 1);
- pci_unmap_page(intel_private.pcidev, intel_private.scratch_page_dma,
- PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+ if (intel_private.needs_dmar)
+ pci_unmap_page(intel_private.pcidev,
+ intel_private.scratch_page_dma,
+ PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
__free_page(intel_private.scratch_page);
}
@@ -1346,16 +1348,6 @@ int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
{
int i, mask;
- /*
- * Can be called from the fake agp driver but also directly from
- * drm/i915.ko. Hence we need to check whether everything is set up
- * already.
- */
- if (intel_private.driver) {
- intel_private.refcount++;
- return 1;
- }
-
for (i = 0; intel_gtt_chipsets[i].name != NULL; i++) {
if (gpu_pdev) {
if (gpu_pdev->device ==
@@ -1376,16 +1368,26 @@ int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
if (!intel_private.driver)
return 0;
- intel_private.refcount++;
-
#if IS_ENABLED(CONFIG_AGP_INTEL)
if (bridge) {
+ if (INTEL_GTT_GEN > 1)
+ return 0;
+
bridge->driver = &intel_fake_agp_driver;
bridge->dev_private_data = &intel_private;
bridge->dev = bridge_pdev;
}
#endif
+
+ /*
+ * Can be called from the fake agp driver but also directly from
+ * drm/i915.ko. Hence we need to check whether everything is set up
+ * already.
+ */
+ if (intel_private.refcount++)
+ return 1;
+
intel_private.bridge_dev = pci_dev_get(bridge_pdev);
dev_info(&bridge_pdev->dev, "Intel %s Chipset\n", intel_gtt_chipsets[i].name);
@@ -1430,6 +1432,8 @@ void intel_gmch_remove(void)
if (--intel_private.refcount)
return;
+ if (intel_private.scratch_page)
+ intel_gtt_teardown_scratch_page();
if (intel_private.pcidev)
pci_dev_put(intel_private.pcidev);
if (intel_private.bridge_dev)