linux_dsm_epyc7002/drivers/gpu/drm
Oscar Mateo 73d477f6bb drm/i915/bdw: Interrupts with logical rings
We need to attend context switch interrupts from all rings. Also, fixed writing
IMR/IER and added HWSTAM at ring init time.

Notice that, if added to irq_enable_mask, the context switch interrupts would
be incorrectly masked out when the user interrupts are due to no users waiting
on a sequence number. Therefore, this commit adds a bitmask of interrupts to
be kept unmasked at all times.

v2: Disable HWSTAM, as suggested by Damien (nobody listens to these interrupts,
anyway).

v3: Add new get/put_irq functions.

Signed-off-by: Thomas Daniel <thomas.daniel@intel.com> (v1)
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com> (v2 & v3)
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
[danvet: Drop the GEN8_ prefix from the context switch interrupt
define and move it to its brethren.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-08-11 23:06:58 +02:00
..
armada Merge branch 'drm-armada-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into drm-next 2014-07-23 13:01:56 +10:00
ast drm/ttm: Fix a few sparse warnings 2014-07-22 10:58:21 +10:00
bochs drm: bochs: fix warnings 2014-07-22 11:32:07 +10:00
bridge
cirrus drm: cirrus: fix warnings 2014-07-22 11:32:04 +10:00
exynos drm/exynos: g2d: let exynos_g2d_get_ver_ioctl fail 2014-08-04 13:39:28 +09:00
gma500
i2c drm/tda998x: update for new drm connector APIs. 2014-08-05 10:34:33 +10:00
i810
i915 drm/i915/bdw: Interrupts with logical rings 2014-08-11 23:06:58 +02:00
mga
mgag200 drm/ttm: Fix a few sparse warnings 2014-07-22 10:58:21 +10:00
msm drm/msm/hdmi: fix HDMI_MUX_EN gpio request typo 2014-08-04 11:55:30 -04:00
nouveau Linux 3.16 2014-08-05 09:04:59 +10:00
omapdrm Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next 2014-07-29 20:49:36 +02:00
panel
qxl Linux 3.16 2014-08-05 09:04:59 +10:00
r128
radeon Linux 3.16 2014-08-05 09:04:59 +10:00
rcar-du drm/rcar-du: Fix maximum frame buffer pitch computation 2014-07-30 11:08:24 +10:00
savage
shmobile drm: shmobile: fix warnings 2014-07-22 11:31:35 +10:00
sis
sti drm/sti: fix warning in build. 2014-08-05 09:41:42 +10:00
tdfx
tegra
tilcdc
ttm drm/ttm: Pass GFP flags in order to avoid deadlock. 2014-08-05 10:54:19 +10:00
udl drm/udl: use helpers 2014-07-18 14:24:49 +10:00
via
vmwgfx drm/ttm: Fix a few sparse warnings 2014-07-22 10:58:21 +10:00
ati_pcigart.c
drm_agpsupport.c
drm_auth.c
drm_buffer.c drivers/gpu/drm/drm_buffer.c: remove unnecessary null test before kfree 2014-07-18 15:39:27 +02:00
drm_bufs.c drm: remove unused "struct drm_freelist" 2014-08-02 06:43:10 +10:00
drm_cache.c
drm_context.c
drm_crtc_helper.c
drm_crtc_internal.h
drm_crtc.c Merge tag 'drm-intel-next-2014-07-25-merged' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-08-04 17:57:34 +10:00
drm_debugfs.c
drm_dma.c
drm_dp_helper.c
drm_dp_mst_topology.c drm/dp: Staticize a couple of DP utility functions 2014-07-22 10:58:28 +10:00
drm_drv.c drm: Add missing __user annotation 2014-07-22 10:57:20 +10:00
drm_edid_load.c
drm_edid.c Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next 2014-07-29 20:49:36 +02:00
drm_encoder_slave.c
drm_fb_cma_helper.c
drm_fb_helper.c drm: Resetting rotation property 2014-08-08 17:43:53 +02:00
drm_flip_work.c
drm_fops.c drm: drop i386 verification 2014-08-02 06:43:37 +10:00
drm_gem_cma_helper.c drm: gem_cma: Use ERR_CAST helper 2014-07-21 14:36:45 +10:00
drm_gem.c
drm_global.c
drm_hashtab.c
drm_info.c drm: remove unused "struct drm_freelist" 2014-08-02 06:43:10 +10:00
drm_ioc32.c
drm_ioctl.c
drm_irq.c
drm_lock.c
drm_memory.c
drm_mipi_dsi.c
drm_mm.c
drm_modes.c
drm_modeset_lock.c
drm_of.c drm: add of_graph endpoint helper to find possible CRTCs 2014-07-11 15:38:28 +01:00
drm_panel.c
drm_pci.c
drm_plane_helper.c drm/plane-helper: Use proper plane init function 2014-07-18 15:39:28 +02:00
drm_platform.c
drm_prime.c
drm_probe_helper.c
drm_rect.c drm: Add drm_rect rotation functions 2014-07-11 23:44:12 +02:00
drm_scatter.c
drm_stub.c
drm_sysfs.c
drm_trace_points.c
drm_trace.h
drm_usb.c
drm_vm.c
drm_vma_manager.c
Kconfig drm: sti: add VTG driver 2014-07-30 18:20:56 +02:00
Makefile drm: sti: add VTG driver 2014-07-30 18:20:56 +02:00
README.drm

************************************************************
* For the very latest on DRI development, please see:      *
*     http://dri.freedesktop.org/                          *
************************************************************

The Direct Rendering Manager (drm) is a device-independent kernel-level
device driver that provides support for the XFree86 Direct Rendering
Infrastructure (DRI).

The DRM supports the Direct Rendering Infrastructure (DRI) in four major
ways:

    1. The DRM provides synchronized access to the graphics hardware via
       the use of an optimized two-tiered lock.

    2. The DRM enforces the DRI security policy for access to the graphics
       hardware by only allowing authenticated X11 clients access to
       restricted regions of memory.

    3. The DRM provides a generic DMA engine, complete with multiple
       queues and the ability to detect the need for an OpenGL context
       switch.

    4. The DRM is extensible via the use of small device-specific modules
       that rely extensively on the API exported by the DRM module.


Documentation on the DRI is available from:
    http://dri.freedesktop.org/wiki/Documentation
    http://sourceforge.net/project/showfiles.php?group_id=387
    http://dri.sourceforge.net/doc/

For specific information about kernel-level support, see:

    The Direct Rendering Manager, Kernel Support for the Direct Rendering
    Infrastructure
    http://dri.sourceforge.net/doc/drm_low_level.html

    Hardware Locking for the Direct Rendering Infrastructure
    http://dri.sourceforge.net/doc/hardware_locking_low_level.html

    A Security Analysis of the Direct Rendering Infrastructure
    http://dri.sourceforge.net/doc/security_low_level.html