diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/4490-drm-amdkfd-Fix-kernel-queue-64-bit-doorbell-offset-c.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/4490-drm-amdkfd-Fix-kernel-queue-64-bit-doorbell-offset-c.patch | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/4490-drm-amdkfd-Fix-kernel-queue-64-bit-doorbell-offset-c.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/4490-drm-amdkfd-Fix-kernel-queue-64-bit-doorbell-offset-c.patch new file mode 100644 index 00000000..1ea2f7b0 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/4490-drm-amdkfd-Fix-kernel-queue-64-bit-doorbell-offset-c.patch @@ -0,0 +1,45 @@ +From 1961ae561bd8c1588756f1f97a2c95bbe31b13ec Mon Sep 17 00:00:00 2001 +From: Shaoyun Liu <Shaoyun.Liu@amd.com> +Date: Mon, 7 May 2018 16:50:26 -0400 +Subject: [PATCH 4490/5725] drm/amdkfd: Fix kernel queue 64 bit doorbell offset + calculation + +The bitmap index calculation should reverse the logic used on allocation +so it will clear the same bit used on allocation + +Change-Id: Idae2b7df4eef7f51f61294223e883916ded619ed +Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> +--- + drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c | 9 +++++---- + 1 file changed, 5 insertions(+), 4 deletions(-) + +diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c b/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c +index c3744d8..ebe79bf 100644 +--- a/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c ++++ b/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c +@@ -188,9 +188,9 @@ void __iomem *kfd_get_kernel_doorbell(struct kfd_dev *kfd, + *doorbell_off = kfd->doorbell_id_offset + inx; + + pr_debug("Get kernel queue doorbell\n" +- " doorbell offset == 0x%08X\n" +- " kernel address == %p\n", +- *doorbell_off, (kfd->doorbell_kernel_ptr + inx)); ++ " doorbell offset == 0x%08X\n" ++ " doorbell index == 0x%x\n", ++ *doorbell_off, inx); + + return kfd->doorbell_kernel_ptr + inx; + } +@@ -199,7 +199,8 @@ void kfd_release_kernel_doorbell(struct kfd_dev *kfd, u32 __iomem *db_addr) + { + unsigned int inx; + +- inx = (unsigned int)(db_addr - kfd->doorbell_kernel_ptr); ++ inx = (unsigned int)(db_addr - kfd->doorbell_kernel_ptr) ++ * sizeof(u32) / kfd->device_info->doorbell_size; + + mutex_lock(&kfd->doorbell_mutex); + __clear_bit(inx, kfd->doorbell_available_index); +-- +2.7.4 + |