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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spamd-Result: default: False [-4.30 / 50.00]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-0.997]; MIME_GOOD(-0.10)[text/plain]; FREEMAIL_TO(0.00)[intel.com,gmail.com,ffwll.ch,linux.intel.com,kernel.org]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; RCPT_COUNT_SEVEN(0.00)[10]; MIME_TRACE(0.00)[0:+]; MID_RHS_MATCH_FROM(0.00)[]; FREEMAIL_ENVRCPT(0.00)[gmail.com]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; RCVD_TLS_ALL(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; FUZZY_BLOCKED(0.00)[rspamd.com]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo, suse.de:mid, suse.de:email] X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" Hi Am 21.08.24 um 16:16 schrieb Gustavo Sousa: > Quoting Thomas Zimmermann (2024-08-21 10:56:59-03:00) >> Setting 'nomodeset' on the kernel command line disables all graphics >> drivers with modesetting capabilities; leaving only firmware drivers, >> such as simpledrm or efifb. >> >> Most DRM drivers automatically support 'nomodeset' via DRM's module >> helper macros. In xe, which uses regular module_init(), manually call >> drm_firmware_drivers_only() to test for 'nomodeset'. Do not register >> the driver if set. >> >> Signed-off-by: Thomas Zimmermann >> --- >> drivers/gpu/drm/xe/xe_module.c | 5 +++++ >> 1 file changed, 5 insertions(+) >> >> diff --git a/drivers/gpu/drm/xe/xe_module.c b/drivers/gpu/drm/xe/xe_module.c >> index 923460119cec..60fb7dd26903 100644 >> --- a/drivers/gpu/drm/xe/xe_module.c >> +++ b/drivers/gpu/drm/xe/xe_module.c >> @@ -8,6 +8,8 @@ >> #include >> #include >> >> +#include >> + >> #include "xe_drv.h" >> #include "xe_hw_fence.h" >> #include "xe_pci.h" >> @@ -92,6 +94,9 @@ static int __init xe_init(void) >> { >> int err, i; >> >> + if (drm_firmware_drivers_only()) >> + return -ENODEV; >> + > Hm... But what if xe is to be used only for compute or render? Shouldn't > we handle this somewhere else? The semantics of 'nomodeset' is a bit vague in this case. The option is supposed to disable all of the driver in case there's a significant problem with booting up. Other drivers do that. And users should be able to specify 'nomodeset' and reliably get some display output; whether the problem is in KMS or rendering. I suggest to stick with that behavior, even if that disables other functionality as well. Up to you. Best regards Thomas > > Taking a quick look, xe_display_probe() might be a good candidate? > > -- > Gustavo Sousa > >> for (i = 0; i < ARRAY_SIZE(init_funcs); i++) { >> err = init_funcs[i].init(); >> if (err) { >> -- >> 2.46.0 >> -- -- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Frankenstrasse 146, 90461 Nuernberg, Germany GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman HRB 36809 (AG Nuernberg)