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Subject[PATCH 05/83] drm/radeon: Add kfd-->kgd interface to get virtual ram size
Date
This patch adds a new interface to kfd2kgd_calls structure so that
the kfd driver could get the virtual ram size of a specific
radeon device.

Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
---
drivers/gpu/drm/radeon/radeon_kfd.c | 12 ++++++++++++
include/linux/radeon_kfd.h | 1 +
2 files changed, 13 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_kfd.c b/drivers/gpu/drm/radeon/radeon_kfd.c
index 7c7f808..1b859b5 100644
--- a/drivers/gpu/drm/radeon/radeon_kfd.c
+++ b/drivers/gpu/drm/radeon/radeon_kfd.c
@@ -25,7 +25,10 @@
#include <drm/drmP.h>
#include "radeon.h"

+static uint64_t get_vmem_size(struct kgd_dev *kgd);
+
static const struct kfd2kgd_calls kfd2kgd = {
+ .get_vmem_size = get_vmem_size,
};

static const struct kgd2kfd_calls *kgd2kfd;
@@ -92,3 +95,12 @@ void radeon_kfd_device_fini(struct radeon_device *rdev)
rdev->kfd = NULL;
}
}
+
+static uint64_t get_vmem_size(struct kgd_dev *kgd)
+{
+ struct radeon_device *rdev = (struct radeon_device *)kgd;
+
+ BUG_ON(kgd == NULL);
+
+ return rdev->mc.real_vram_size;
+}
diff --git a/include/linux/radeon_kfd.h b/include/linux/radeon_kfd.h
index 59785e9..28cddf5 100644
--- a/include/linux/radeon_kfd.h
+++ b/include/linux/radeon_kfd.h
@@ -57,6 +57,7 @@ struct kgd2kfd_calls {
};

struct kfd2kgd_calls {
+ uint64_t (*get_vmem_size)(struct kgd_dev *kgd);
};

bool kgd2kfd_init(unsigned interface_version,
--
1.9.1


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