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vcn_v3_0.c

Assigns a negative errno constantCopies bytes with native memcpy

SHA-256dc43e5e525902d2ca4ea27b56e1259ecf60df070b468bf93fd76383d42022a73

Evidence

imports amdgpu.h lines 18–43

18:67… RWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 */
23
24#include <linux/firmware.h>
25#include "amdgpu.h"
26#include "amdgpu_vcn.h"
27#include "amdgpu_pm.h"
28#include "amdgpu_cs.h"
29#include "soc15.h"
30#include "soc15d.h"
31#include "vcn_v2_0.h"
32#include "mmsch_v3_0.h"
33#include "vcn_sw_ring.h"
34
35#include "vcn/vcn_3_0_0_offset.h"
36#include "vcn/vcn_3_0_0_sh_mask.h"
37#include "ivsrcid/vcn/irqsrcs_vcn_2_0.h"
38
39#include <drm/drm_drv.h>
40
41#define VCN_VID_SOC_ADDRESS_2_0					0x1fa00
42#define VCN1_VID_SOC_ADDRESS_3_0				0x48200
43#defin …

Kernel error code return lines 137–145

10… 
if (adev->vcn.harvest_config == (AMDGPU_VCN_HARVEST_VCN0 |
				 AMDGPU_VCN_HARVEST_VCN1))
	/* both instances are harvested, disable the block */
	return -ENOENT;
142
for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
	if (amdgpu_ip_version(adev, UVD_HWIP, 0) ==
	    IP_VERSION(3, 0, 33))

Uses a large-bound native loop lines 1283–1296

⋯4 lines
1287		uint32_t status;
1288
1289		for (k = 0; k < 100; ++k) {
1290			status = RREG32_SOC15(VCN, i, mmUVD_STATUS);
1291			if (status & 2)
⋯5 lines

Copies bytes with native memcpy lines 1540–1545

27… h_v3_0_init_header);
table_loc = (uint32_t *)table->cpu_addr;
memcpy((void *)table_loc, &header, size);
1543
/* message MMSCH (in VCN[0]) to initialize this client
* 1, write to mmsch_vf_ctx_addr_l …

Assigns a negative errno constant lines 1947–1959

13…  addr - start;
1948
/* Check length */
if (msg[1] > end - addr) {
r = -EINVAL;
goto out;
}
⋯6 lines