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  1. 12 Oct, 2020 1 commit
    • Randy Dunlap's avatar
      drm/aspeed: Fix Kconfig warning & subsequent build errors · bf296b35
      Randy Dunlap authored 
      Kernel test robot reported build errors (undefined references)
that didn't make much sense. After reproducing them, there is also
a Kconfig warning that is the root cause of the build errors, so
fix that Kconfig problem.

Fixes this Kconfig warning:
WARNING: unmet direct dependencies detected for CMA
  Depends on [n]: MMU [=n]
  Selected by [m]:
  - DRM_ASPEED_GFX [=m] && HAS_IOMEM [=y] && DRM [=m] && OF [=y] && (COMPILE_TEST [=y] || ARCH_ASPEED) && HAVE_DMA_CONTIGUOUS [=y]

and these dependent build errors:
(.text+0x10c8c): undefined reference to `start_isolate_page_range'
microblaze-linux-ld: (.text+0x10f14): undefined reference to `test_pages_isolated'
microblaze-linux-ld: (.text+0x10fd0): undefined reference to `undo_isolate_page_range'

Fixes: 76356a96 ("drm: aspeed: Clean up Kconfig options")
Reported-by: default avatarkernel test robot <lkp@intel.com>
Signed-off-by: default avatarRandy Dunlap <rdunlap@infradead.org>
Reviewed-by: default avatarJoel Stanley <joel@jms.id.au>
Cc: Joel Stanley <joel@jms.id.au>
Cc: Andrew Jeffery <andrew@aj.id.au>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: linux-mm@kvack.org
Cc: linux-aspeed@lists.ozlabs.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: default avatarJoel Stanley <joel@jms.id.au>
Link: https://patchwork.freedesktop.org/patch/msgid/20201011230131.4922-1-rdunlap@infradead.orgSigned-off-by: default avatarJoel Stanley <joel@jms.id.au>
      bf296b35
  3. 10 Oct, 2020 2 commits
  5. 09 Oct, 2020 5 commits
    • Simon Ser's avatar
      drm/fourcc: document modifier uniqueness requirements · ec5722ad
      Simon Ser authored 
      There have suggestions to bake pitch alignment, address alignment,
contiguous memory or other placement (hidden VRAM, GTT/BAR, etc)
constraints into modifiers. Last time this was brought up it seemed
like the consensus was to not allow this. Document this in drm_fourcc.h.

There are several reasons for this.

- Encoding all of these constraints in the modifiers would explode the
  search space pretty quickly (we only have 64 bits to work with).
- Modifiers need to be unambiguous: a buffer can only have a single
  modifier.
- Modifier users aren't expected to parse modifiers (except drivers).

v2: add paragraph about aliases (Daniel)

v3: fix unrelated changes sent with the patch

v4: disambiguate users between driver and higher-level programs (Brian,
Daniel)

v5: fix AFBC example (Brian, Daniel)

v6: remove duplicated paragraph (Daniel)
Signed-off-by: default avatarSimon Ser <contact@emersion.fr>
Reviewed-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: default avatarBrian Starkey <brian.starkey@arm.com>
Cc: Daniel Stone <daniel@fooishbar.org>
Cc: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Cc: Dave Airlie <airlied@gmail.com>
Cc: Marek Olšák <maraeo@gmail.com>
Cc: Alex Deucher <alexdeucher@gmail.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Michel Dänzer <michel@daenzer.net>
Link: https://patchwork.freedesktop.org/patch/msgid/MGwgeXojKNdNXjCxuMhRlwcJM4vdYph_WJcMeGPPGMcRKtHV41XAXlh2tCc-pPJZCAhS3gwbWMWTd8f03NBA2ZYKfr0QxLhcPivpopr5c6M=@emersion.fr
      ec5722ad
    • Thomas Zimmermann's avatar
      drm/aspeed: Set driver CMA functions with DRM_GEM_CMA_DRIVER_OPS · 178c7235
      Thomas Zimmermann authored 
      DRM_GEM_CMA_DRIVER_OPS sets the functions in struct drm_driver
to their defaults. No functional changes are made.
Signed-off-by: default avatarThomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: default avatarJoel Stanley <joel@jms.id.au>
Acked-by: default avatarEmil Velikov <emil.velikov@collabora.com>
Signed-off-by: default avatarJoel Stanley <joel@jms.id.au>
Link: https://patchwork.freedesktop.org/patch/msgid/20200603083132.4610-5-tzimmermann@suse.de
      178c7235
    • Maxime Ripard's avatar
      drm/atomic: Pass the full state to CRTC atomic enable/disable · 351f950d
      Maxime Ripard authored 
      If the CRTC driver ever needs to access the full DRM state, it can't do so
at atomic_enable / atomic_disable time since drm_atomic_helper_swap_state
will have cleared the pointer from the struct drm_crtc_state to the struct
drm_atomic_state before calling those hooks.

In order to allow that, let's pass the full DRM state to atomic_enable and
atomic_disable. The conversion was done using the coccinelle script below,
built tested on all the drivers and actually tested on vc4.

virtual report

@@
struct drm_crtc_helper_funcs *FUNCS;
identifier dev, state;
identifier crtc, crtc_state;
@@

 disable_outputs(struct drm_device *dev, struct drm_atomic_state *state)
 {
 	<...
-	FUNCS->atomic_disable(crtc, crtc_state);
+	FUNCS->atomic_disable(crtc, state);
 	...>
 }

@@
struct drm_crtc_helper_funcs *FUNCS;
identifier dev, state;
identifier crtc, crtc_state;
@@

 drm_atomic_helper_commit_modeset_enables(struct drm_device *dev, struct drm_atomic_state *state)
 {
 	<...
-	FUNCS->atomic_enable(crtc, crtc_state);
+	FUNCS->atomic_enable(crtc, state);
 	...>
 }

@@
identifier crtc, old_state;
@@

 struct drm_crtc_helper_funcs {
	...
-	void (*atomic_enable)(struct drm_crtc *crtc, struct drm_crtc_state *old_state);
+	void (*atomic_enable)(struct drm_crtc *crtc, struct drm_atomic_state *state);
	...
-	void (*atomic_disable)(struct drm_crtc *crtc, struct drm_crtc_state *old_state);
+	void (*atomic_disable)(struct drm_crtc *crtc, struct drm_atomic_state *state);
	...
}

@ crtc_atomic_func @
identifier helpers;
identifier func;
@@

(
static struct drm_crtc_helper_funcs helpers = {
	...,
	.atomic_enable = func,
	...,
};
|
static struct drm_crtc_helper_funcs helpers = {
	...,
	.atomic_disable = func,
	...,
};
)

@ ignores_old_state @
identifier crtc_atomic_func.func;
identifier crtc, old_state;
@@

void func(struct drm_crtc *crtc,
		struct drm_crtc_state *old_state)
{
	... when != old_state
}

@ adds_old_state depends on crtc_atomic_func && !ignores_old_state @
identifier crtc_atomic_func.func;
identifier crtc, old_state;
@@

void func(struct drm_crtc *crtc, struct drm_crtc_state *old_state)
{
+	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state, crtc);
	...
}

@ depends on crtc_atomic_func @
identifier crtc_atomic_func.func;
expression E;
type T;
@@

void func(...)
{
	...
-	T state = E;
+	T crtc_state = E;
	<+...
-	state
+	crtc_state
	...+>

}

@ depends on crtc_atomic_func @
identifier crtc_atomic_func.func;
type T;
@@

void func(...)
{
	...
-	T state;
+	T crtc_state;
	<+...
-	state
+	crtc_state
	...+>

}

@ depends on crtc_atomic_func @
identifier crtc_atomic_func.func;
identifier old_state;
identifier crtc;
@@

void func(struct drm_crtc *crtc,
-	       struct drm_crtc_state *old_state
+	       struct drm_atomic_state *state
	       )
		{ ... }

@ include depends on adds_old_state @
@@

 #include <drm/drm_atomic.h>

@ no_include depends on !include && adds_old_state @
@@

+ #include <drm/drm_atomic.h>
  #include <drm/...>
Signed-off-by: default avatarMaxime Ripard <maxime@cerno.tech>
Acked-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/845aa10ef171fc0ea060495efef142a0c13f7870.1602161031.git-series.maxime@cerno.tech
      351f950d
    • Ondrej Jirman's avatar
      drm: aspeed: Fix GENMASK misuse · c76eb355
      Ondrej Jirman authored 
      Arguments to GENMASK should be msb >= lsb.
Signed-off-by: default avatarOndrej Jirman <megous@megous.com>
Reviewed-by: default avatarAndrew Jeffery <andrew@aj.id.au>
Signed-off-by: default avatarJoel Stanley <joel@jms.id.au>
Link: https://patchwork.freedesktop.org/patch/msgid/20200222235152.242816-1-megous@megous.com
      c76eb355
    • Joel Stanley's avatar
      drm/aspeed: Add sysfs for output settings · 696029eb
      Joel Stanley authored 
      These settings are used by an ASPEED BMC to determine when the host is
trying to drive the display over PCIe (vga_pw) and to switch the
output between PCIe and the internal graphics device (dac_mux).

The valid values for the dac mux are:

 00: VGA mode (default, aka PCIe)
 01: Graphics CRT (aka BMC internal graphics, this driver)
 10: Pass through mode from video input port A
 11: Pass through mode from video input port B

Values for the read-only vga password register are:

 1: Host driving the display
 0: Host not driving the display
Signed-off-by: default avatarJoel Stanley <joel@jms.id.au>
Reviewed-by: default avatarAndrew Jeffery <andrew@aj.id.au>
Link: https://patchwork.freedesktop.org/patch/msgid/20200916083413.777307-1-joel@jms.id.au
      696029eb
  7. 08 Oct, 2020 5 commits
  9. 07 Oct, 2020 13 commits
  11. 06 Oct, 2020 1 commit
  13. 05 Oct, 2020 8 commits
  15. 04 Oct, 2020 1 commit
  17. 02 Oct, 2020 1 commit
  19. 01 Oct, 2020 2 commits
  21. 30 Sep, 2020 1 commit
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