diff options
Diffstat (limited to 'src/i965_device_info.c')
| -rw-r--r-- | src/i965_device_info.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/src/i965_device_info.c b/src/i965_device_info.c index 3abc137..2d3ced4 100644 --- a/src/i965_device_info.c +++ b/src/i965_device_info.c @@ -27,6 +27,11 @@ #include <stdlib.h> #include "i965_drv_video.h" +#include <string.h> +#include <strings.h> +#include <errno.h> +#include <cpuid.h> + /* Extra set of chroma formats supported for H.264 decoding (beyond YUV 4:2:0) */ #define EXTRA_H264_DEC_CHROMA_FORMATS \ (VA_RT_FORMAT_YUV400) @@ -155,6 +160,8 @@ static struct hw_codec_info ivb_hw_codec_info = { }, }; +static void hsw_hw_codec_preinit(VADriverContextP ctx, struct hw_codec_info *codec_info); + extern struct hw_context *gen75_dec_hw_context_init(VADriverContextP, struct object_config *); extern struct hw_context *gen75_enc_hw_context_init(VADriverContextP, struct object_config *); extern struct hw_context *gen75_proc_context_init(VADriverContextP, struct object_config *); @@ -164,6 +171,7 @@ static struct hw_codec_info hsw_hw_codec_info = { .proc_hw_context_init = gen75_proc_context_init, .render_init = genx_render_init, .post_processing_context_init = i965_post_processing_context_init, + .preinit_hw_codec = hsw_hw_codec_preinit, .max_width = 4096, .max_height = 4096, @@ -418,3 +426,106 @@ i965_get_device_info(int devid) return NULL; } } + +static void cpuid(unsigned int op, + uint32_t *eax, uint32_t *ebx, + uint32_t *ecx, uint32_t *edx) +{ + __cpuid_count(op, 0, *eax, *ebx, *ecx, *edx); +} + +/* + * This function doesn't check the length. And the caller should + * assure that the length of input string should be greater than 48. + */ + +static int intel_driver_detect_cpustring(char *model_id) +{ + uint32_t *rdata; + + if (model_id == NULL) + return -EINVAL; + + rdata = (uint32_t *)model_id; + + /* obtain the max supported extended CPUID info */ + cpuid(0x80000000, &rdata[0], &rdata[1], &rdata[2], &rdata[3]); + + /* If the max extended CPUID info is less than 0x80000004, fail */ + if (rdata[0] < 0x80000004) + return -EINVAL; + + /* obtain the CPUID string */ + cpuid(0x80000002, &rdata[0], &rdata[1], &rdata[2], &rdata[3]); + cpuid(0x80000003, &rdata[4], &rdata[5], &rdata[6], &rdata[7]); + cpuid(0x80000004, &rdata[8], &rdata[9], &rdata[10], &rdata[11]); + + *(model_id + 48) = '\0'; + return 0; +} + +/* + * the hook_list for HSW. + * It is captured by /proc/cpuinfo and the space character is stripped. + */ +const static char *hsw_cpu_hook_list[] = { +"Intel(R)Pentium(R)3556U", +"Intel(R)Pentium(R)3560Y", +"Intel(R)Pentium(R)3550M", +"Intel(R)Celeron(R)2980U", +"Intel(R)Celeron(R)2955U", +"Intel(R)Celeron(R)2950M", +}; + +static void hsw_hw_codec_preinit(VADriverContextP ctx, struct hw_codec_info *codec_info) +{ + char model_string[64]; + char *model_ptr, *tmp_ptr; + int i, model_len, list_len; + bool found; + + memset(model_string, 0, sizeof(model_string)); + + /* If it can't detect cpu model_string, leave it alone */ + if (intel_driver_detect_cpustring(model_string)) + return; + + /* strip the cpufreq info */ + model_ptr = model_string; + tmp_ptr = strstr(model_ptr, "@"); + + if (tmp_ptr) + *tmp_ptr = '\0'; + + /* strip the space character */ + model_ptr = model_string; + model_len = strlen(model_string); + for (i = 0; i < model_len; i++) { + if (model_string[i] != ' ') { + *model_ptr = model_string[i]; + model_ptr++; + } + } + *model_ptr = '\0'; + + found = false; + list_len = sizeof(hsw_cpu_hook_list) / sizeof(char *); + model_len = strlen(model_string); + for (i = 0; i < list_len; i++) { + model_ptr = (char *)hsw_cpu_hook_list[i]; + + if (strlen(model_ptr) != model_len) + continue; + + if (strncasecmp(model_string, model_ptr, model_len) == 0) { + found = true; + break; + } + } + + if (found) { + codec_info->has_h264_encoding = 0; + codec_info->has_h264_mvc_encoding = 0; + codec_info->has_mpeg2_encoding = 0; + } +} |