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drm/i915: fix device info for devices without display 

Commit 00c6cbfd4e ("drm/i915: move pipe_mask and cpu_transcoder_mask
to runtime info") moved the pipe_mask member from struct
intel_device_info to intel_runtime_info, but overlooked some of our
platforms initializing device info .display = {}. This is significant,
as pipe_mask is the single point of truth for a device having a display
or not; the platforms in question left pipe_mask to whatever was set for
the platforms they "inherit" from in the complex macro scheme we have.

Add new NO_DISPLAY macro initializing .__runtime.pipe_mask = 0, which
will cause the device info .display sub-struct to be zeroed in
intel_device_info_runtime_init(). A better solution (or simply audit of
proper use of HAS_DISPLAY() checks) is required before moving forward
with [1].

Also clear all the display related members in runtime info if there's no
display. The latter is a bit tedious, but it's for completeness at this
time, to ensure similar functionality as before.

[1] https://lore.kernel.org/r/dfda1bf67f02ceb07c280b7a13216405fd1f7a34.1660137416.git.jani.nikula@intel.com

Fixes: 00c6cbfd4e ("drm/i915: move pipe_mask and cpu_transcoder_mask to runtime info")
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Maarten Lankhort <maarten.lankhorst@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Acked-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220916082642.3451961-1-jani.nikula@intel.com
(cherry picked from commit 86570b7b12)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
This commit is contained in:
Jani Nikula 2022-09-16 11:26:42 +03:00 committed by Tvrtko Ursulin
parent 86a4e84a9d
commit 47c3d0752b
2 changed files with 12 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/gpu/drm/i915/i915_pci.c
View File

@ -41,6 +41,8 @@
.__runtime.media.ip.ver = (x), \
.__runtime.display.ip.ver = (x)
#define NO_DISPLAY .__runtime.pipe_mask = 0
#define I845_PIPE_OFFSETS \
.display.pipe_offsets = { \
[TRANSCODER_A] = PIPE_A_OFFSET, \
@ -519,9 +521,8 @@ static const struct intel_device_info ivb_m_gt2_info = {
static const struct intel_device_info ivb_q_info = {
GEN7_FEATURES,
PLATFORM(INTEL_IVYBRIDGE),
NO_DISPLAY,
.gt = 2,
.__runtime.pipe_mask = 0, /* legal, last one wins */
.__runtime.cpu_transcoder_mask = 0,
.has_l3_dpf = 1,
};
@ -1039,7 +1040,7 @@ static const struct intel_device_info xehpsdv_info = {
XE_HPM_FEATURES,
DGFX_FEATURES,
PLATFORM(INTEL_XEHPSDV),
.display = { },
NO_DISPLAY,
.has_64k_pages = 1,
.needs_compact_pt = 1,
.has_media_ratio_mode = 1,
@ -1081,7 +1082,7 @@ static const struct intel_device_info dg2_info = {
static const struct intel_device_info ats_m_info = {
DG2_FEATURES,
.display = { 0 },
NO_DISPLAY,
.require_force_probe = 1,
.tuning_thread_rr_after_dep = 1,
};
@ -1103,7 +1104,7 @@ static const struct intel_device_info pvc_info = {
.__runtime.graphics.ip.rel = 60,
.__runtime.media.ip.rel = 60,
PLATFORM(INTEL_PONTEVECCHIO),
.display = { 0 },
NO_DISPLAY,
.has_flat_ccs = 0,
.__runtime.platform_engine_mask =
BIT(BCS0) |

6
drivers/gpu/drm/i915/intel_device_info.c
View File

@ -433,8 +433,14 @@ void intel_device_info_runtime_init(struct drm_i915_private *dev_priv)
dev_priv->drm.driver_features &= ~(DRIVER_MODESET |
DRIVER_ATOMIC);
memset(&info->display, 0, sizeof(info->display));
runtime->cpu_transcoder_mask = 0;
memset(runtime->num_sprites, 0, sizeof(runtime->num_sprites));
memset(runtime->num_scalers, 0, sizeof(runtime->num_scalers));
runtime->fbc_mask = 0;
runtime->has_hdcp = false;
runtime->has_dmc = false;
runtime->has_dsc = false;
}
}