+++ /dev/null
-From 6f719373b943a955fee6fc2012aed207b65e2854 Mon Sep 17 00:00:00 2001
-From: Thomas Zimmermann <tzimmermann@suse.de>
-Date: Tue, 14 Oct 2025 10:46:34 +0200
-Subject: drm/ast: Blank with VGACR17 sync enable, always clear VGACRB6 sync off
-
-From: Thomas Zimmermann <tzimmermann@suse.de>
-
-commit 6f719373b943a955fee6fc2012aed207b65e2854 upstream.
-
-Blank the display by disabling sync pulses with VGACR17<7>. Unblank
-by reenabling them. This VGA setting should be supported by all Aspeed
-hardware.
-
-Ast currently blanks via sync-off bits in VGACRB6. Not all BMCs handle
-VGACRB6 correctly. After disabling sync during a reboot, some BMCs do
-not reenable it after the soft reset. The display output remains dark.
-When the display is off during boot, some BMCs set the sync-off bits in
-VGACRB6, so the display remains dark. Observed with Blackbird AST2500
-BMCs. Clearing the sync-off bits unconditionally fixes these issues.
-
-Also do not modify VGASR1's SD bit for blanking, as it only disables GPU
-access to video memory.
-
-v2:
-- init vgacrb6 correctly (Jocelyn)
-
-Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
-Fixes: ce3d99c83495 ("drm: Call drm_atomic_helper_shutdown() at shutdown time for misc drivers")
-Tested-by: Nick Bowler <nbowler@draconx.ca>
-Reported-by: Nick Bowler <nbowler@draconx.ca>
-Closes: https://lore.kernel.org/dri-devel/wpwd7rit6t4mnu6kdqbtsnk5bhftgslio6e2jgkz6kgw6cuvvr@xbfswsczfqsi/
-Cc: Douglas Anderson <dianders@chromium.org>
-Cc: Dave Airlie <airlied@redhat.com>
-Cc: Thomas Zimmermann <tzimmermann@suse.de>
-Cc: Jocelyn Falempe <jfalempe@redhat.com>
-Cc: dri-devel@lists.freedesktop.org
-Cc: <stable@vger.kernel.org> # v6.7+
-Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
-Link: https://lore.kernel.org/r/20251014084743.18242-1-tzimmermann@suse.de
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/gpu/drm/ast/ast_mode.c | 18 ++++++++++--------
- drivers/gpu/drm/ast/ast_reg.h | 1 +
- 2 files changed, 11 insertions(+), 8 deletions(-)
-
---- a/drivers/gpu/drm/ast/ast_mode.c
-+++ b/drivers/gpu/drm/ast/ast_mode.c
-@@ -1195,22 +1195,24 @@ ast_crtc_helper_atomic_flush(struct drm_
- static void ast_crtc_helper_atomic_enable(struct drm_crtc *crtc, struct drm_atomic_state *state)
- {
- struct ast_device *ast = to_ast_device(crtc->dev);
-+ u8 vgacr17 = 0x00;
-+ u8 vgacrb6 = 0xff;
-
-- ast_set_index_reg_mask(ast, AST_IO_VGACRI, 0xb6, 0xfc, 0x00);
-- ast_set_index_reg_mask(ast, AST_IO_VGASRI, 0x01, 0xdf, 0x00);
-+ vgacr17 |= AST_IO_VGACR17_SYNC_ENABLE;
-+ vgacrb6 &= ~(AST_IO_VGACRB6_VSYNC_OFF | AST_IO_VGACRB6_HSYNC_OFF);
-+
-+ ast_set_index_reg_mask(ast, AST_IO_VGACRI, 0x17, 0x7f, vgacr17);
-+ ast_set_index_reg_mask(ast, AST_IO_VGACRI, 0xb6, 0xfc, vgacrb6);
- }
-
- static void ast_crtc_helper_atomic_disable(struct drm_crtc *crtc, struct drm_atomic_state *state)
- {
- struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state, crtc);
- struct ast_device *ast = to_ast_device(crtc->dev);
-- u8 vgacrb6;
-+ u8 vgacr17 = 0xff;
-
-- ast_set_index_reg_mask(ast, AST_IO_VGASRI, 0x01, 0xdf, AST_IO_VGASR1_SD);
--
-- vgacrb6 = AST_IO_VGACRB6_VSYNC_OFF |
-- AST_IO_VGACRB6_HSYNC_OFF;
-- ast_set_index_reg_mask(ast, AST_IO_VGACRI, 0xb6, 0xfc, vgacrb6);
-+ vgacr17 &= ~AST_IO_VGACR17_SYNC_ENABLE;
-+ ast_set_index_reg_mask(ast, AST_IO_VGACRI, 0x17, 0x7f, vgacr17);
-
- /*
- * HW cursors require the underlying primary plane and CRTC to
---- a/drivers/gpu/drm/ast/ast_reg.h
-+++ b/drivers/gpu/drm/ast/ast_reg.h
-@@ -29,6 +29,7 @@
- #define AST_IO_VGAGRI (0x4E)
-
- #define AST_IO_VGACRI (0x54)
-+#define AST_IO_VGACR17_SYNC_ENABLE BIT(7) /* called "Hardware reset" in docs */
- #define AST_IO_VGACR80_PASSWORD (0xa8)
- #define AST_IO_VGACRA1_VGAIO_DISABLED BIT(1)
- #define AST_IO_VGACRA1_MMIO_ENABLED BIT(2)
can-gs_usb-increase-max-interface-to-u8_max.patch
cifs-parse_dfs_referrals-prevent-oob-on-malformed-input.patch
drm-sched-fix-potential-double-free-in-drm_sched_job_add_resv_dependencies.patch
-drm-ast-blank-with-vgacr17-sync-enable-always-clear-vgacrb6-sync-off.patch
drm-amdgpu-use-atomic-functions-with-memory-barriers-for-vm-fault-info.patch
drm-amdgpu-fix-gfx12-mes-packet-status-return-check.patch
perf-core-fix-address-filter-match-with-backing-files.patch
+++ /dev/null
-From 6f719373b943a955fee6fc2012aed207b65e2854 Mon Sep 17 00:00:00 2001
-From: Thomas Zimmermann <tzimmermann@suse.de>
-Date: Tue, 14 Oct 2025 10:46:34 +0200
-Subject: drm/ast: Blank with VGACR17 sync enable, always clear VGACRB6 sync off
-
-From: Thomas Zimmermann <tzimmermann@suse.de>
-
-commit 6f719373b943a955fee6fc2012aed207b65e2854 upstream.
-
-Blank the display by disabling sync pulses with VGACR17<7>. Unblank
-by reenabling them. This VGA setting should be supported by all Aspeed
-hardware.
-
-Ast currently blanks via sync-off bits in VGACRB6. Not all BMCs handle
-VGACRB6 correctly. After disabling sync during a reboot, some BMCs do
-not reenable it after the soft reset. The display output remains dark.
-When the display is off during boot, some BMCs set the sync-off bits in
-VGACRB6, so the display remains dark. Observed with Blackbird AST2500
-BMCs. Clearing the sync-off bits unconditionally fixes these issues.
-
-Also do not modify VGASR1's SD bit for blanking, as it only disables GPU
-access to video memory.
-
-v2:
-- init vgacrb6 correctly (Jocelyn)
-
-Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
-Fixes: ce3d99c83495 ("drm: Call drm_atomic_helper_shutdown() at shutdown time for misc drivers")
-Tested-by: Nick Bowler <nbowler@draconx.ca>
-Reported-by: Nick Bowler <nbowler@draconx.ca>
-Closes: https://lore.kernel.org/dri-devel/wpwd7rit6t4mnu6kdqbtsnk5bhftgslio6e2jgkz6kgw6cuvvr@xbfswsczfqsi/
-Cc: Douglas Anderson <dianders@chromium.org>
-Cc: Dave Airlie <airlied@redhat.com>
-Cc: Thomas Zimmermann <tzimmermann@suse.de>
-Cc: Jocelyn Falempe <jfalempe@redhat.com>
-Cc: dri-devel@lists.freedesktop.org
-Cc: <stable@vger.kernel.org> # v6.7+
-Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
-Link: https://lore.kernel.org/r/20251014084743.18242-1-tzimmermann@suse.de
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/gpu/drm/ast/ast_mode.c | 18 ++++++++++--------
- drivers/gpu/drm/ast/ast_reg.h | 1 +
- 2 files changed, 11 insertions(+), 8 deletions(-)
-
---- a/drivers/gpu/drm/ast/ast_mode.c
-+++ b/drivers/gpu/drm/ast/ast_mode.c
-@@ -836,22 +836,24 @@ ast_crtc_helper_atomic_flush(struct drm_
- static void ast_crtc_helper_atomic_enable(struct drm_crtc *crtc, struct drm_atomic_state *state)
- {
- struct ast_device *ast = to_ast_device(crtc->dev);
-+ u8 vgacr17 = 0x00;
-+ u8 vgacrb6 = 0xff;
-
-- ast_set_index_reg_mask(ast, AST_IO_VGACRI, 0xb6, 0xfc, 0x00);
-- ast_set_index_reg_mask(ast, AST_IO_VGASRI, 0x01, 0xdf, 0x00);
-+ vgacr17 |= AST_IO_VGACR17_SYNC_ENABLE;
-+ vgacrb6 &= ~(AST_IO_VGACRB6_VSYNC_OFF | AST_IO_VGACRB6_HSYNC_OFF);
-+
-+ ast_set_index_reg_mask(ast, AST_IO_VGACRI, 0x17, 0x7f, vgacr17);
-+ ast_set_index_reg_mask(ast, AST_IO_VGACRI, 0xb6, 0xfc, vgacrb6);
- }
-
- static void ast_crtc_helper_atomic_disable(struct drm_crtc *crtc, struct drm_atomic_state *state)
- {
- struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state, crtc);
- struct ast_device *ast = to_ast_device(crtc->dev);
-- u8 vgacrb6;
-+ u8 vgacr17 = 0xff;
-
-- ast_set_index_reg_mask(ast, AST_IO_VGASRI, 0x01, 0xdf, AST_IO_VGASR1_SD);
--
-- vgacrb6 = AST_IO_VGACRB6_VSYNC_OFF |
-- AST_IO_VGACRB6_HSYNC_OFF;
-- ast_set_index_reg_mask(ast, AST_IO_VGACRI, 0xb6, 0xfc, vgacrb6);
-+ vgacr17 &= ~AST_IO_VGACR17_SYNC_ENABLE;
-+ ast_set_index_reg_mask(ast, AST_IO_VGACRI, 0x17, 0x7f, vgacr17);
-
- /*
- * HW cursors require the underlying primary plane and CRTC to
---- a/drivers/gpu/drm/ast/ast_reg.h
-+++ b/drivers/gpu/drm/ast/ast_reg.h
-@@ -29,6 +29,7 @@
- #define AST_IO_VGAGRI (0x4E)
-
- #define AST_IO_VGACRI (0x54)
-+#define AST_IO_VGACR17_SYNC_ENABLE BIT(7) /* called "Hardware reset" in docs */
- #define AST_IO_VGACR80_PASSWORD (0xa8)
- #define AST_IO_VGACR99_VGAMEM_RSRV_MASK GENMASK(1, 0)
- #define AST_IO_VGACRA1_VGAIO_DISABLED BIT(1)
alsa-hda-cs35l41-fix-null-pointer-dereference-in-cs35l41_get_acpi_mute_state.patch
alsa-hda-fix-missing-pointer-check-in-hda_component_manager_init-function.patch
drm-sched-fix-potential-double-free-in-drm_sched_job_add_resv_dependencies.patch
-drm-ast-blank-with-vgacr17-sync-enable-always-clear-vgacrb6-sync-off.patch
drm-amdgpu-use-atomic-functions-with-memory-barriers-for-vm-fault-info.patch
drm-amdgpu-fix-gfx12-mes-packet-status-return-check.patch
drm-xe-increase-global-invalidation-timeout-to-1000us.patch
projects / thirdparty / kernel / stable-queue.git / commitdiff
