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drm/radeon: Add implementation of get_fw_version 

This patch implements a new interface that was added to the kfd-->kgd interface.
The new interface function retrieves the firmware version that is currently
in use by a specific engine. The firmware was uploaded to the engine by the
radeon driver.

v2: Returns the fw version of the specific engine, as passed into the function
by a new parameter

Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Oded Gabbay 2014-11-09 12:45:11 +02:00
parent 61466c651f
commit f7694323b4
1 changed files with 53 additions and 0 deletions
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53
drivers/gpu/drm/radeon/radeon_kfd.c
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@ -28,6 +28,8 @@
#include "cikd.h"
#include "cik_reg.h"
#include "radeon_kfd.h"
#include "radeon_ucode.h"
#include <linux/firmware.h>
#define CIK_PIPE_PER_MEC (4)
@ -49,6 +51,7 @@ static uint64_t get_vmem_size(struct kgd_dev *kgd);
static uint64_t get_gpu_clock_counter(struct kgd_dev *kgd);
static uint32_t get_max_engine_clock_in_mhz(struct kgd_dev *kgd);
static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type);
/*
* Register access functions
@ -91,6 +94,7 @@ static const struct kfd2kgd_calls kfd2kgd = {
.hqd_load = kgd_hqd_load,
.hqd_is_occupies = kgd_hqd_is_occupies,
.hqd_destroy = kgd_hqd_destroy,
.get_fw_version = get_fw_version
};
static const struct kgd2kfd_calls *kgd2kfd;
@ -561,3 +565,52 @@ static int kgd_hqd_destroy(struct kgd_dev *kgd, uint32_t reset_type,
release_queue(kgd);
return 0;
}
static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type)
{
struct radeon_device *rdev = (struct radeon_device *) kgd;
const union radeon_firmware_header *hdr;
BUG_ON(kgd == NULL || rdev->mec_fw == NULL);
switch (type) {
case KGD_ENGINE_PFP:
hdr = (const union radeon_firmware_header *) rdev->pfp_fw->data;
break;
case KGD_ENGINE_ME:
hdr = (const union radeon_firmware_header *) rdev->me_fw->data;
break;
case KGD_ENGINE_CE:
hdr = (const union radeon_firmware_header *) rdev->ce_fw->data;
break;
case KGD_ENGINE_MEC1:
hdr = (const union radeon_firmware_header *) rdev->mec_fw->data;
break;
case KGD_ENGINE_MEC2:
hdr = (const union radeon_firmware_header *)
rdev->mec2_fw->data;
break;
case KGD_ENGINE_RLC:
hdr = (const union radeon_firmware_header *) rdev->rlc_fw->data;
break;
case KGD_ENGINE_SDMA:
hdr = (const union radeon_firmware_header *)
rdev->sdma_fw->data;
break;
default:
return 0;
}
if (hdr == NULL)
return 0;
/* Only 12 bit in use*/
return hdr->common.ucode_version;
}