Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ebcfd1e2 authored by Felix Kuehling's avatar Felix Kuehling Committed by Oded Gabbay
Browse files

drm/amdkfd: Module option to disable CRAT table 



Some systems have broken CRAT tables. Add a module option to ignore
a CRAT table.

Signed-off-by: default avatarFelix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: default avatarOded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: default avatarOded Gabbay <oded.gabbay@gmail.com>
parent 413e85d5

drivers/gpu/drm/amd/amdkfd/kfd_crat.c

+5 −0
Original line number Diff line number Diff line
@@ -696,6 +696,11 @@ int kfd_create_crat_image_acpi(void **crat_image, size_t *size) 
		return -EINVAL;

	}



	if (ignore_crat) {

		pr_info("CRAT table disabled by module option\n");

		return -ENODATA;

	}



	pcrat_image = kmalloc(crat_table->length, GFP_KERNEL);

	if (!pcrat_image)

		return -ENOMEM;

drivers/gpu/drm/amd/amdkfd/kfd_module.c

+5 −0
Original line number Diff line number Diff line
@@ -69,6 +69,11 @@ module_param(send_sigterm, int, 0444); 
MODULE_PARM_DESC(send_sigterm,

	"Send sigterm to HSA process on unhandled exception (0 = disable, 1 = enable)");



int ignore_crat;

module_param(ignore_crat, int, 0444);

MODULE_PARM_DESC(ignore_crat,

	"Ignore CRAT table during KFD initialization (0 = use CRAT (default), 1 = ignore CRAT)");



static int amdkfd_init_completed;



int kgd2kfd_init(unsigned int interface_version,

drivers/gpu/drm/amd/amdkfd/kfd_priv.h

+6 −0
Original line number Diff line number Diff line
@@ -104,6 +104,12 @@ extern int cwsr_enable; 
 */

extern int send_sigterm;



/*

 * Ignore CRAT table during KFD initialization, can be used to work around

 * broken CRAT tables on some AMD systems

 */

extern int ignore_crat;



/**

 * enum kfd_sched_policy

 *